diff --git a/.gitignore b/.gitignore
index 46dff00229..038ad02a35 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,6 +7,7 @@ node_modules
 package-lock.json
 **/*.rs.bk
 *.log
+*.cassette
 net_ipc/tests/node-p2p-ipc
 build_docs_key
 *.orig
diff --git a/Cargo.lock b/Cargo.lock
index 81407a3f69..4639b84465 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -10,7 +10,7 @@ name = "aho-corasick"
 version = "0.6.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "memchr 2.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "memchr 2.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -67,6 +67,11 @@ name = "autocfg"
 version = "0.1.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "autocfg"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "backtrace"
 version = "0.3.27"
@@ -84,7 +89,7 @@ name = "backtrace-sys"
 version = "0.1.32"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cc 1.0.49 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.50 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -158,7 +163,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "arrayref 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "arrayvec 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "constant_time_eq 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "constant_time_eq 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -196,11 +201,11 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "bstr"
-version = "0.2.8"
+version = "0.2.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "memchr 2.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "memchr 2.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex-automata 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -231,7 +236,7 @@ dependencies = [
 
 [[package]]
 name = "bytes"
-version = "0.5.3"
+version = "0.5.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -248,7 +253,7 @@ name = "bzip2-sys"
 version = "0.1.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cc 1.0.49 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.50 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -270,7 +275,7 @@ dependencies = [
 
 [[package]]
 name = "cc"
-version = "1.0.49"
+version = "1.0.50"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -338,7 +343,7 @@ name = "cmake"
 version = "0.1.42"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cc 1.0.49 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.50 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -351,7 +356,7 @@ dependencies = [
 
 [[package]]
 name = "constant_time_eq"
-version = "0.1.4"
+version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -387,9 +392,9 @@ dependencies = [
  "cranelift-codegen-shared 0.52.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "cranelift-entity 0.52.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "smallvec 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "smallvec 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "target-lexicon 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "thiserror 1.0.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "thiserror 1.0.10 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -506,7 +511,7 @@ name = "crypto-mac"
 version = "0.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "constant_time_eq 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "constant_time_eq 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "generic-array 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -521,12 +526,12 @@ dependencies = [
 
 [[package]]
 name = "csv"
-version = "1.1.2"
+version = "1.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "bstr 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bstr 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "csv-core 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "itoa 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "itoa 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "ryu 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -536,7 +541,7 @@ name = "csv-core"
 version = "0.1.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "memchr 2.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "memchr 2.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -545,7 +550,7 @@ version = "0.1.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.14 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -610,7 +615,7 @@ version = "1.0.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
- "redox_users 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "redox_users 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -630,7 +635,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
- "redox_users 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "redox_users 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -646,7 +651,7 @@ dependencies = [
 
 [[package]]
 name = "dtoa"
-version = "0.4.4"
+version = "0.4.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -670,9 +675,9 @@ name = "dynomite-derive"
 version = "0.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.14 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -702,7 +707,7 @@ dependencies = [
  "humantime 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex 1.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "termcolor 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "termcolor 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -714,7 +719,7 @@ dependencies = [
  "humantime 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex 1.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "termcolor 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "termcolor 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -768,9 +773,9 @@ name = "failure_derive"
 version = "0.1.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.14 (registry+https://github.com/rust-lang/crates.io-index)",
  "synstructure 0.12.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -803,7 +808,7 @@ dependencies = [
  "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "crc32fast 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
- "miniz_oxide 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "miniz_oxide 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -960,9 +965,9 @@ version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "proc-macro-hack 0.5.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "proc-macro2 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.14 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1015,7 +1020,7 @@ dependencies = [
  "futures-macro 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures-sink 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures-task 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "memchr 2.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "memchr 2.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "pin-utils 0.1.0-alpha.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "proc-macro-hack 0.5.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "proc-macro-nested 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1031,7 +1036,7 @@ dependencies = [
  "futures-core-preview 0.3.0-alpha.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures-io-preview 0.3.0-alpha.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures-sink-preview 0.3.0-alpha.17 (registry+https://github.com/rust-lang/crates.io-index)",
- "memchr 2.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "memchr 2.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "pin-utils 0.1.0-alpha.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "slab 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -1059,13 +1064,12 @@ dependencies = [
 
 [[package]]
 name = "getrandom"
-version = "0.1.3"
+version = "0.1.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cloudabi 0.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "fuchsia-cprng 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "wasi 0.9.0+wasi-snapshot-preview1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1086,7 +1090,7 @@ dependencies = [
  "aho-corasick 0.6.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "fnv 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "memchr 2.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "memchr 2.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex 1.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -1105,7 +1109,7 @@ dependencies = [
  "fnv 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.1.29 (registry+https://github.com/rust-lang/crates.io-index)",
  "http 0.1.21 (registry+https://github.com/rust-lang/crates.io-index)",
- "indexmap 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "indexmap 1.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "slab 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "string 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1166,6 +1170,7 @@ dependencies = [
  "serde_derive 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.39 (registry+https://github.com/rust-lang/crates.io-index)",
  "sim2h 0.0.42-alpha5",
+ "sim2h_client 0.0.42-alpha5",
  "structopt 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "tar 0.4.26 (registry+https://github.com/rust-lang/crates.io-index)",
  "tempfile 3.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1554,7 +1559,7 @@ version = "0.0.42-alpha5"
 dependencies = [
  "chrono 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "crossbeam-channel 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "csv 1.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "csv 1.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "env_logger 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "holochain_common 0.0.42-alpha5",
  "holochain_locksmith 0.0.42-alpha5",
@@ -1778,6 +1783,19 @@ dependencies = [
  "shrinkwraprs 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "holochain_tracing_macros"
+version = "0.0.13"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "crossbeam-channel 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "holochain_tracing 0.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "newrelic 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.14 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "holochain_tracing_macros"
 version = "0.0.14"
@@ -1789,7 +1807,38 @@ dependencies = [
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "newrelic 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.14 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "holochain_walkman"
+version = "0.0.42-alpha5"
+dependencies = [
+ "chrono 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "holochain_walkman_types 0.0.42-alpha5",
+ "in_stream 0.0.42-alpha5",
+ "lib3h_protocol 0.0.31 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.39 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_millis 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sim2h 0.0.42-alpha5",
+ "sim2h_client 0.0.42-alpha5",
+ "snap 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "structopt 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url2 0.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "holochain_walkman_types"
+version = "0.0.42-alpha5"
+dependencies = [
+ "regex 1.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.39 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_millis 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1825,7 +1874,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bytes 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)",
  "fnv 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "itoa 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "itoa 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1884,7 +1933,7 @@ dependencies = [
  "http 0.1.21 (registry+https://github.com/rust-lang/crates.io-index)",
  "httparse 1.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "iovec 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "itoa 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "itoa 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "net2 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1918,7 +1967,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "matches 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicode-bidi 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "unicode-normalization 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unicode-normalization 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1928,7 +1977,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "matches 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicode-bidi 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "unicode-normalization 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unicode-normalization 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1940,12 +1989,12 @@ dependencies = [
  "globset 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "memchr 2.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "memchr 2.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex 1.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "same-file 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "same-file 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "thread_local 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "walkdir 2.2.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi-util 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "walkdir 2.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi-util 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1982,10 +2031,10 @@ dependencies = [
 
 [[package]]
 name = "indexmap"
-version = "1.3.0"
+version = "1.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "autocfg 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "autocfg 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -2023,7 +2072,7 @@ dependencies = [
 
 [[package]]
 name = "itoa"
-version = "0.4.4"
+version = "0.4.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -2034,7 +2083,7 @@ dependencies = [
  "serde 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.39 (registry+https://github.com/rust-lang/crates.io-index)",
- "treediff 3.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "treediff 3.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -2279,7 +2328,7 @@ name = "lmdb-rkv-sys"
 version = "0.9.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cc 1.0.49 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.50 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
  "pkg-config 0.3.17 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -2366,7 +2415,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "memchr"
-version = "2.2.1"
+version = "2.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2418,7 +2467,7 @@ dependencies = [
 
 [[package]]
 name = "miniz_oxide"
-version = "0.3.5"
+version = "0.3.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "adler32 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2545,7 +2594,7 @@ dependencies = [
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "openssl 0.10.25 (registry+https://github.com/rust-lang/crates.io-index)",
  "openssl-probe 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "openssl-sys 0.9.53 (registry+https://github.com/rust-lang/crates.io-index)",
+ "openssl-sys 0.9.54 (registry+https://github.com/rust-lang/crates.io-index)",
  "schannel 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)",
  "security-framework 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "security-framework-sys 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2603,7 +2652,7 @@ version = "0.14.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "cc 1.0.49 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.50 (registry+https://github.com/rust-lang/crates.io-index)",
  "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
  "void 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2615,7 +2664,7 @@ version = "0.15.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "cc 1.0.49 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.50 (registry+https://github.com/rust-lang/crates.io-index)",
  "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
  "void 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2745,7 +2794,7 @@ dependencies = [
  "foreign-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
- "openssl-sys 0.9.53 (registry+https://github.com/rust-lang/crates.io-index)",
+ "openssl-sys 0.9.54 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -2758,16 +2807,16 @@ name = "openssl-src"
 version = "111.6.1+1.1.1d"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cc 1.0.49 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.50 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "openssl-sys"
-version = "0.9.53"
+version = "0.9.54"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "autocfg 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "cc 1.0.49 (registry+https://github.com/rust-lang/crates.io-index)",
+ "autocfg 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.50 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
  "openssl-src 111.6.1+1.1.1d (registry+https://github.com/rust-lang/crates.io-index)",
  "pkg-config 0.3.17 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2962,9 +3011,9 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "pest 2.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "pest_meta 2.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "proc-macro2 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.14 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -3074,7 +3123,7 @@ version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "atty 0.2.14 (registry+https://github.com/rust-lang/crates.io-index)",
- "csv 1.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "csv 1.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "encode_unicode 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "term 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3086,9 +3135,9 @@ name = "proc-macro-error"
 version = "0.2.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.14 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -3104,9 +3153,9 @@ name = "proc-macro-hack"
 version = "0.5.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.14 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -3137,7 +3186,7 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.7"
+version = "1.0.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "unicode-xid 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3169,7 +3218,7 @@ name = "quote"
 version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -3228,7 +3277,7 @@ name = "rand"
 version = "0.7.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "getrandom 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "getrandom 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand_chacha 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand_core 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3271,7 +3320,7 @@ name = "rand_core"
 version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "getrandom 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "getrandom 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -3352,7 +3401,7 @@ version = "7.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "cc 1.0.49 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.50 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -3393,13 +3442,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "redox_users"
-version = "0.3.1"
+version = "0.3.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "failure 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand_os 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "getrandom 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)",
  "redox_syscall 0.1.56 (registry+https://github.com/rust-lang/crates.io-index)",
- "rust-argon2 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rust-argon2 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -3413,8 +3461,8 @@ version = "1.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "aho-corasick 0.6.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "memchr 2.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex-syntax 0.6.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "memchr 2.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex-syntax 0.6.14 (registry+https://github.com/rust-lang/crates.io-index)",
  "thread_local 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "utf8-ranges 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -3429,7 +3477,7 @@ dependencies = [
 
 [[package]]
 name = "regex-syntax"
-version = "0.6.12"
+version = "0.6.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -3565,7 +3613,7 @@ dependencies = [
  "serde_derive 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.39 (registry+https://github.com/rust-lang/crates.io-index)",
  "shlex 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-process 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-process 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio-timer 0.2.12 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -3610,12 +3658,13 @@ dependencies = [
 
 [[package]]
 name = "rust-argon2"
-version = "0.5.1"
+version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "base64 0.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "base64 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "blake2b_simd 0.5.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "crossbeam-utils 0.6.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "constant_time_eq 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "crossbeam-utils 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -3643,7 +3692,7 @@ name = "rust_sodium_holochain_fork-sys"
 version = "0.10.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cc 1.0.49 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.50 (registry+https://github.com/rust-lang/crates.io-index)",
  "flate2 1.0.12 (registry+https://github.com/rust-lang/crates.io-index)",
  "http_req 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3702,7 +3751,7 @@ dependencies = [
  "dirs 2.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "memchr 2.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "memchr 2.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "nix 0.14.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicode-segmentation 1.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicode-width 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3727,10 +3776,10 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "same-file"
-version = "1.0.5"
+version = "1.0.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "winapi-util 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi-util 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -3843,12 +3892,20 @@ name = "serde_json"
 version = "1.0.39"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "indexmap 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "itoa 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "indexmap 1.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "itoa 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "ryu 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "serde_millis"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "serde 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "serde_regex"
 version = "0.3.1"
@@ -3871,8 +3928,8 @@ name = "serde_urlencoded"
 version = "0.5.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "dtoa 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "itoa 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "dtoa 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "itoa 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
  "url 1.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -3882,7 +3939,7 @@ name = "serde_yaml"
 version = "0.8.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "dtoa 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "dtoa 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "linked-hash-map 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
  "yaml-rust 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -4008,6 +4065,7 @@ dependencies = [
  "holochain_persistence_api 0.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
  "holochain_tracing 0.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
  "holochain_tracing_macros 0.0.14 (registry+https://github.com/rust-lang/crates.io-index)",
+ "holochain_walkman_types 0.0.42-alpha5",
  "in_stream 0.0.42-alpha5",
  "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "lib3h 0.0.31 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -4026,6 +4084,7 @@ dependencies = [
  "serde 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.39 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sim2h_client 0.0.42-alpha5",
  "snowflake 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "threadpool 1.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -4035,6 +4094,46 @@ dependencies = [
  "uuid 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "sim2h_client"
+version = "0.0.42-alpha5"
+dependencies = [
+ "base64 0.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "colored 1.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "dns-lookup 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "failure 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "flate2 1.0.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "glob 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hcid 0.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "holochain_json_api 0.0.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "holochain_persistence_api 0.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "holochain_persistence_file 0.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "holochain_tracing_macros 0.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "holochain_wasm_utils 0.0.42-alpha5",
+ "ignore 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "in_stream 0.0.42-alpha5",
+ "json-patch 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lib3h_crypto_api 0.0.31 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lib3h_protocol 0.0.31 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lib3h_sodium 0.0.31 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "newrelic 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "reqwest 0.9.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rpassword 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustyline 5.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "semver 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.39 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sim2h 0.0.42-alpha5",
+ "structopt 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tar 0.4.26 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tempfile 3.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tera 0.11.20 (registry+https://github.com/rust-lang/crates.io-index)",
+ "toml 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url2 0.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "sim2h_server"
 version = "0.0.42-alpha5"
@@ -4086,8 +4185,17 @@ dependencies = [
 
 [[package]]
 name = "smallvec"
-version = "1.1.0"
+version = "1.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "snap"
+version = "0.2.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "byteorder 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
 
 [[package]]
 name = "snowflake"
@@ -4179,9 +4287,9 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "heck 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "proc-macro-error 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "proc-macro2 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.14 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -4211,10 +4319,10 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "1.0.13"
+version = "1.0.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.8 (registry+https://github.com/rust-lang/crates.io-index)",
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  "unicode-xid 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
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@@ -4235,9 +4343,9 @@ name = "synstructure"
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 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.14 (registry+https://github.com/rust-lang/crates.io-index)",
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 ]
 
@@ -4307,10 +4415,10 @@ dependencies = [
 
 [[package]]
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-version = "1.0.5"
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 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "wincolor 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi-util 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -4352,20 +4460,20 @@ dependencies = [
 
 [[package]]
 name = "thiserror"
-version = "1.0.9"
+version = "1.0.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "thiserror-impl 1.0.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "thiserror-impl 1.0.10 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
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-version = "1.0.9"
+version = "1.0.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.8 (registry+https://github.com/rust-lang/crates.io-index)",
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- "syn 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.14 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -4451,13 +4559,13 @@ name = "tokio"
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 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "bytes 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bytes 0.5.4 (registry+https://github.com/rust-lang/crates.io-index)",
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  "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
- "memchr 2.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "memchr 2.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
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  "mio-uds 0.6.7 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -4522,18 +4630,21 @@ name = "tokio-macros"
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 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.14 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
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-version = "0.2.3"
+version = "0.2.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
+ "crossbeam-queue 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.1.29 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
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  "tokio-io 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -4688,7 +4799,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "treediff"
-version = "3.0.1"
+version = "3.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
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@@ -4834,10 +4945,10 @@ dependencies = [
 
 [[package]]
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-version = "0.1.11"
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 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "smallvec 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "smallvec 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -4997,19 +5108,19 @@ name = "wabt-sys"
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 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cc 1.0.49 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.50 (registry+https://github.com/rust-lang/crates.io-index)",
  "cmake 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)",
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 [[package]]
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-version = "2.2.9"
+version = "2.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "same-file 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "same-file 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
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- "winapi-util 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi-util 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -5022,6 +5133,11 @@ dependencies = [
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 ]
 
+[[package]]
+name = "wasi"
+version = "0.9.0+wasi-snapshot-preview1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "wasm-bindgen"
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@@ -5101,7 +5217,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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- "smallvec 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "smallvec 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "target-lexicon 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -5113,7 +5229,7 @@ dependencies = [
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  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "thiserror 1.0.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "thiserror 1.0.10 (registry+https://github.com/rust-lang/crates.io-index)",
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@@ -5138,11 +5254,11 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
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- "cc 1.0.49 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.50 (registry+https://github.com/rust-lang/crates.io-index)",
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  "hex 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "indexmap 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "indexmap 1.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
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@@ -5209,7 +5325,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
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 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
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@@ -5220,15 +5336,6 @@ name = "winapi-x86_64-pc-windows-gnu"
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-[[package]]
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-
 [[package]]
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 "checksum backtrace 0.3.27 (registry+https://github.com/rust-lang/crates.io-index)" = "60ef64f0896c6f4bd4f788de337c099b83de8c8129279c0084558af33f45ee19"
 "checksum backtrace-sys 0.1.32 (registry+https://github.com/rust-lang/crates.io-index)" = "5d6575f128516de27e3ce99689419835fce9643a9b215a14d2b5b685be018491"
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@@ -5366,17 +5474,17 @@ dependencies = [
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-"checksum cc 1.0.49 (registry+https://github.com/rust-lang/crates.io-index)" = "e450b8da92aa6f274e7c6437692f9f2ce6d701fb73bacfcf87897b3f89a4c20e"
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 "checksum cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)" = "4785bdd1c96b2a846b2bd7cc02e86b6b3dbf14e7e53446c4f54c92a361040822"
 "checksum chashmap 2.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "ff41a3c2c1e39921b9003de14bf0439c7b63a9039637c291e1a64925d8ddfa45"
 "checksum chrono 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)" = "45912881121cb26fad7c38c17ba7daa18764771836b34fab7d3fbd93ed633878"
@@ -5386,7 +5494,7 @@ dependencies = [
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 "checksum colored 1.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "6e9a455e156a4271e12fd0246238c380b1e223e3736663c7a18ed8b6362028a9"
-"checksum constant_time_eq 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "995a44c877f9212528ccc74b21a232f66ad69001e40ede5bcee2ac9ef2657120"
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 "checksum core-foundation 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)" = "25b9e03f145fd4f2bf705e07b900cd41fc636598fe5dc452fd0db1441c3f496d"
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@@ -5406,7 +5514,7 @@ dependencies = [
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 "checksum serde_regex 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "2d1385699a81f2d1b18b55cba1e2544d3ed8776db058e62865c0416e861f5ec6"
 "checksum serde_test 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)" = "70807e147558b5253cb70f55d343db1d07204d773087c96d0f35fced295dba82"
 "checksum serde_urlencoded 0.5.5 (registry+https://github.com/rust-lang/crates.io-index)" = "642dd69105886af2efd227f75a520ec9b44a820d65bc133a9131f7d229fd165a"
@@ -5721,7 +5831,8 @@ dependencies = [
 "checksum slab 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "c111b5bd5695e56cffe5129854aa230b39c93a305372fdbb2668ca2394eea9f8"
 "checksum slug 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "b3bc762e6a4b6c6fcaade73e77f9ebc6991b676f88bb2358bddb56560f073373"
 "checksum smallvec 0.6.13 (registry+https://github.com/rust-lang/crates.io-index)" = "f7b0758c52e15a8b5e3691eae6cc559f08eee9406e548a4477ba4e67770a82b6"
-"checksum smallvec 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "44e59e0c9fa00817912ae6e4e6e3c4fe04455e75699d06eedc7d85917ed8e8f4"
+"checksum smallvec 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "5c2fb2ec9bcd216a5b0d0ccf31ab17b5ed1d627960edff65bbe95d3ce221cefc"
+"checksum snap 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)" = "95d697d63d44ad8b78b8d235bf85b34022a78af292c8918527c5f0cffdde7f43"
 "checksum snowflake 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "27207bb65232eda1f588cf46db2fee75c0808d557f6b3cf19a75f5d6d7c94df1"
 "checksum socket2 0.3.11 (registry+https://github.com/rust-lang/crates.io-index)" = "e8b74de517221a2cb01a53349cf54182acdc31a074727d3079068448c0676d85"
 "checksum stable_deref_trait 1.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "dba1a27d3efae4351c8051072d619e3ade2820635c3958d826bfea39d59b54c8"
@@ -5736,7 +5847,7 @@ dependencies = [
 "checksum subtle 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "2d67a5a62ba6e01cb2192ff309324cb4875d0c451d55fe2319433abe7a05a8ee"
 "checksum syn 0.12.15 (registry+https://github.com/rust-lang/crates.io-index)" = "c97c05b8ebc34ddd6b967994d5c6e9852fa92f8b82b3858c39451f97346dcce5"
 "checksum syn 0.15.31 (registry+https://github.com/rust-lang/crates.io-index)" = "d2b4cfac95805274c6afdb12d8f770fa2d27c045953e7b630a81801953699a9a"
-"checksum syn 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)" = "1e4ff033220a41d1a57d8125eab57bf5263783dfdcc18688b1dacc6ce9651ef8"
+"checksum syn 1.0.14 (registry+https://github.com/rust-lang/crates.io-index)" = "af6f3550d8dff9ef7dc34d384ac6f107e5d31c8f57d9f28e0081503f547ac8f5"
 "checksum synstructure 0.10.2 (registry+https://github.com/rust-lang/crates.io-index)" = "02353edf96d6e4dc81aea2d8490a7e9db177bf8acb0e951c24940bf866cb313f"
 "checksum synstructure 0.12.3 (registry+https://github.com/rust-lang/crates.io-index)" = "67656ea1dc1b41b1451851562ea232ec2e5a80242139f7e679ceccfb5d61f545"
 "checksum take_mut 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "f764005d11ee5f36500a149ace24e00e3da98b0158b3e2d53a7495660d3f4d60"
@@ -5745,10 +5856,10 @@ dependencies = [
 "checksum tempfile 3.0.7 (registry+https://github.com/rust-lang/crates.io-index)" = "b86c784c88d98c801132806dadd3819ed29d8600836c4088e855cdf3e178ed8a"
 "checksum tera 0.11.20 (registry+https://github.com/rust-lang/crates.io-index)" = "4b505279e19d8f7d24b1a9dc58327c9c36174b1a2c7ebdeac70792d017cb64f3"
 "checksum term 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)" = "edd106a334b7657c10b7c540a0106114feadeb4dc314513e97df481d5d966f42"
-"checksum termcolor 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)" = "96d6098003bde162e4277c70665bd87c326f5a0c3f3fbfb285787fa482d54e6e"
+"checksum termcolor 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "bb6bfa289a4d7c5766392812c0a1f4c1ba45afa1ad47803c11e1f407d846d75f"
 "checksum textwrap 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)" = "d326610f408c7a4eb6f51c37c330e496b08506c9457c9d34287ecc38809fb060"
-"checksum thiserror 1.0.9 (registry+https://github.com/rust-lang/crates.io-index)" = "6f357d1814b33bc2dc221243f8424104bfe72dbe911d5b71b3816a2dff1c977e"
-"checksum thiserror-impl 1.0.9 (registry+https://github.com/rust-lang/crates.io-index)" = "eb2e25d25307eb8436894f727aba8f65d07adf02e5b35a13cebed48bd282bfef"
+"checksum thiserror 1.0.10 (registry+https://github.com/rust-lang/crates.io-index)" = "205684fd018ca14432b12cce6ea3d46763311a571c3d294e71ba3f01adcf1aad"
+"checksum thiserror-impl 1.0.10 (registry+https://github.com/rust-lang/crates.io-index)" = "57e4d2e50ca050ed44fb58309bdce3efa79948f84f9993ad1978de5eebdce5a7"
 "checksum thread_local 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)" = "c6b53e329000edc2b34dbe8545fd20e55a333362d0a321909685a19bd28c3f1b"
 "checksum threadpool 1.7.1 (registry+https://github.com/rust-lang/crates.io-index)" = "e2f0c90a5f3459330ac8bc0d2f879c693bb7a2f59689c1083fc4ef83834da865"
 "checksum thrift_codec 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "8fb61fb3d0a0af14949f3a6949b2639112e13226647112824f4d081533f9b1a8"
@@ -5763,7 +5874,7 @@ dependencies = [
 "checksum tokio-fs 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)" = "3fe6dc22b08d6993916647d108a1a7d15b9cd29c4f4496c62b92c45b5041b7af"
 "checksum tokio-io 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)" = "5090db468dad16e1a7a54c8c67280c5e4b544f3d3e018f0b913b400261f85926"
 "checksum tokio-macros 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)" = "f4b1e7ed7d5d4c2af3d999904b0eebe76544897cdbfb2b9684bed2174ab20f7c"
-"checksum tokio-process 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "88e1281e412013f1ff5787def044a9577a0bed059f451e835f1643201f8b777d"
+"checksum tokio-process 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)" = "afbd6ef1b8cc2bd2c2b580d882774d443ebb1c6ceefe35ba9ea4ab586c89dbe8"
 "checksum tokio-reactor 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)" = "6732fe6b53c8d11178dcb77ac6d9682af27fc6d4cb87789449152e5377377146"
 "checksum tokio-signal 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)" = "dd6dc5276ea05ce379a16de90083ec80836440d5ef8a6a39545a3207373b8296"
 "checksum tokio-sync 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)" = "d06554cce1ae4a50f42fba8023918afa931413aded705b560e29600ccf7c6d76"
@@ -5776,7 +5887,7 @@ dependencies = [
 "checksum trackable 0.2.23 (registry+https://github.com/rust-lang/crates.io-index)" = "11475c3c53b075360eac9794965822cb053996046545f91cf61d90e00b72efa5"
 "checksum trackable_derive 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "0f4062d54dd240bde289717d6b4af18048c3dd552f01a0fd93824f5fc4d2d084"
 "checksum traitobject 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "efd1f82c56340fdf16f2a953d7bda4f8fdffba13d93b00844c25572110b26079"
-"checksum treediff 3.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "654d26443bc9632b5e6fa042e1b197abc314760b25524372c5fd9f48a3b1c79f"
+"checksum treediff 3.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "761e8d5ad7ce14bb82b7e61ccc0ca961005a275a060b9644a2431aa11553c2ff"
 "checksum treeline 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "a7f741b240f1a48843f9b8e0444fb55fb2a4ff67293b50a9179dfd5ea67f8d41"
 "checksum try-lock 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "e604eb7b43c06650e854be16a2a03155743d3752dd1c943f6829e26b7a36e382"
 "checksum tungstenite 0.9.2 (registry+https://github.com/rust-lang/crates.io-index)" = "8a0c2bd5aeb7dcd2bb32e472c8872759308495e5eccc942e929a513cd8d36110"
@@ -5793,7 +5904,7 @@ dependencies = [
 "checksum unicase 1.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7f4765f83163b74f957c797ad9253caf97f103fb064d3999aea9568d09fc8a33"
 "checksum unicase 2.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "50f37be617794602aabbeee0be4f259dc1778fabe05e2d67ee8f79326d5cb4f6"
 "checksum unicode-bidi 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)" = "49f2bd0c6468a8230e1db229cff8029217cf623c767ea5d60bfbd42729ea54d5"
-"checksum unicode-normalization 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)" = "b561e267b2326bb4cebfc0ef9e68355c7abe6c6f522aeac2f5bf95d56c59bdcf"
+"checksum unicode-normalization 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)" = "5479532badd04e128284890390c1e876ef7a993d0570b3597ae43dfa1d59afa4"
 "checksum unicode-segmentation 1.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e83e153d1053cbb5a118eeff7fd5be06ed99153f00dbcd8ae310c5fb2b22edc0"
 "checksum unicode-width 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)" = "caaa9d531767d1ff2150b9332433f32a24622147e5ebb1f26409d5da67afd479"
 "checksum unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "fc72304796d0818e357ead4e000d19c9c174ab23dc11093ac919054d20a6a7fc"
@@ -5818,8 +5929,9 @@ dependencies = [
 "checksum vte 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "4f42f536e22f7fcbb407639765c8fd78707a33109301f834a594758bedd6e8cf"
 "checksum wabt 0.7.4 (registry+https://github.com/rust-lang/crates.io-index)" = "74e463a508e390cc7447e70f640fbf44ad52e1bd095314ace1fdf99516d32add"
 "checksum wabt-sys 0.5.4 (registry+https://github.com/rust-lang/crates.io-index)" = "a6265b25719e82598d104b3717375e37661d41753e2c84cde3f51050c7ed7e3c"
-"checksum walkdir 2.2.9 (registry+https://github.com/rust-lang/crates.io-index)" = "9658c94fa8b940eab2250bd5a457f9c48b748420d71293b165c8cdbe2f55f71e"
+"checksum walkdir 2.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "777182bc735b6424e1a57516d35ed72cb8019d85c8c9bf536dccb3445c1a2f7d"
 "checksum want 0.0.6 (registry+https://github.com/rust-lang/crates.io-index)" = "797464475f30ddb8830cc529aaaae648d581f99e2036a928877dfde027ddf6b3"
+"checksum wasi 0.9.0+wasi-snapshot-preview1 (registry+https://github.com/rust-lang/crates.io-index)" = "cccddf32554fecc6acb585f82a32a72e28b48f8c4c1883ddfeeeaa96f7d8e519"
 "checksum wasm-bindgen 0.2.32 (registry+https://github.com/rust-lang/crates.io-index)" = "710152b9cc4b688f91a23ad1574d0f3d6334ccb883896f6886531dc536944330"
 "checksum wasm-bindgen-backend 0.2.32 (registry+https://github.com/rust-lang/crates.io-index)" = "1f425d1c38c61c25d6ce5a07411cc9f859fbb1bac0eccdf812d7e7e521d4214a"
 "checksum wasm-bindgen-macro 0.2.32 (registry+https://github.com/rust-lang/crates.io-index)" = "8541976809a58d1f08c3689c8ec3d98c9a7910794b1642f96dea56beb527aa1e"
@@ -5837,9 +5949,8 @@ dependencies = [
 "checksum winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)" = "8093091eeb260906a183e6ae1abdba2ef5ef2257a21801128899c3fc699229c6"
 "checksum winapi-build 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "2d315eee3b34aca4797b2da6b13ed88266e6d612562a0c46390af8299fc699bc"
 "checksum winapi-i686-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
-"checksum winapi-util 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7168bab6e1daee33b4557efd0e95d5ca70a03706d39fa5f3fe7a236f584b03c9"
+"checksum winapi-util 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "4ccfbf554c6ad11084fb7517daca16cfdcaccbdadba4fc336f032a8b12c2ad80"
 "checksum winapi-x86_64-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
-"checksum wincolor 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "96f5016b18804d24db43cebf3c77269e7569b8954a8464501c216cc5e070eaa9"
 "checksum winutil 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "7daf138b6b14196e3830a588acf1e86966c694d3e8fb026fb105b8b5dca07e6e"
 "checksum ws 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3dcacc3ba9c1ee43e3fd0846a25489ff22f8906e90775d51b6edbae4b95d71f4"
 "checksum ws 0.9.1 (registry+https://github.com/rust-lang/crates.io-index)" = "c51a2c47b5798ccc774ffb93ff536aec7c4275d722fd9c740c83cdd1af1f2d94"
diff --git a/Cargo.toml b/Cargo.toml
index 3929353a8d..3d77ce5fa1 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -20,7 +20,10 @@ members = [
   "crates/trycp_server",
   "crates/sim1h",
   "crates/sim2h",
+  "crates/sim2h_client",
   "crates/sim2h_server",
+  "crates/walkman_cli",
+  "crates/walkman_types",
   "crates/wasm_utils"
 ]
 exclude = [
diff --git a/crates/cli/Cargo.toml b/crates/cli/Cargo.toml
index 5ab3089e56..beb803a0e0 100644
--- a/crates/cli/Cargo.toml
+++ b/crates/cli/Cargo.toml
@@ -18,6 +18,7 @@ holochain_locksmith = { version = "=0.0.42-alpha5", path = "../locksmith" }
 holochain_tracing_macros = "0.0.14"
 newrelic="0.2"
 sim2h = { version = "=0.0.42-alpha5", path = "../sim2h" }
+sim2h_client = { version = "=0.0.42-alpha5", path = "../sim2h_client" }
 lib3h_crypto_api = "=0.0.31"
 in_stream = { version = "=0.0.42-alpha5", path = "../in_stream" }
 url2 = "=0.0.4"
diff --git a/crates/cli/src/cli/mod.rs b/crates/cli/src/cli/mod.rs
index f606459e65..1e63b69f32 100644
--- a/crates/cli/src/cli/mod.rs
+++ b/crates/cli/src/cli/mod.rs
@@ -7,6 +7,7 @@ pub mod package;
 pub mod run;
 mod sim2h_client;
 pub mod test;
+mod walkman;
 
 pub use self::{
     chain_log::{chain_list, chain_log},
@@ -18,4 +19,5 @@ pub use self::{
     run::{get_interface_type_string, hc_run_bundle_configuration, hc_run_configuration, run},
     sim2h_client::sim2h_client,
     test::{test, TEST_DIR_NAME},
+    walkman::walkman,
 };
diff --git a/crates/cli/src/cli/sim2h_client.rs b/crates/cli/src/cli/sim2h_client.rs
index d3e38da575..71569d0672 100644
--- a/crates/cli/src/cli/sim2h_client.rs
+++ b/crates/cli/src/cli/sim2h_client.rs
@@ -2,13 +2,9 @@ use crate::NEW_RELIC_LICENSE_KEY;
 use dns_lookup::lookup_host;
 use in_stream::*;
 use lib3h_crypto_api::CryptoSystem;
-use lib3h_protocol::data_types::*;
 use lib3h_sodium::SodiumCryptoSystem;
-use sim2h::{
-    crypto::{Provenance, SignedWireMessage},
-    WireMessage, WIRE_VERSION,
-};
-use std::sync::{Arc, Mutex};
+use sim2h::{WireMessage, WIRE_VERSION};
+use sim2h_client::Sim2hClient;
 use url2::prelude::*;
 
 #[holochain_tracing_macros::newrelic_autotrace(HOLOCHAIN_CLI)]
@@ -36,8 +32,8 @@ pub fn sim2h_client(url_string: String, message_string: String) -> Result<(), St
     let url = Url2::parse(format!("{}://{}:{}", url.scheme(), ip, maybe_port.unwrap()));
 
     println!("connecting to: {}", url);
-    let mut job = Job::new(&url)?;
-    job.send_wire(match message_string.as_ref() {
+    let mut client = Sim2hClient::new(&url)?;
+    client.send_wire(match message_string.as_ref() {
         "ping" => WireMessage::Ping,
         "hello" => WireMessage::Hello(WIRE_VERSION),
         "status" => WireMessage::Status,
@@ -54,7 +50,7 @@ pub fn sim2h_client(url_string: String, message_string: String) -> Result<(), St
     loop {
         std::thread::sleep(std::time::Duration::from_millis(10));
         let mut frame = WsFrame::default();
-        match job.connection.read(&mut frame) {
+        match client.connection().read(&mut frame) {
             Ok(_) => {
                 if let WsFrame::Binary(b) = frame {
                     let msg: WireMessage = serde_json::from_slice(&b).unwrap();
@@ -78,102 +74,3 @@ pub fn sim2h_client(url_string: String, message_string: String) -> Result<(), St
 thread_local! {
     pub static CRYPTO: Box<dyn CryptoSystem> = Box::new(SodiumCryptoSystem::new());
 }
-struct Job {
-    agent_id: String,
-    #[allow(dead_code)]
-    pub_key: Arc<Mutex<Box<dyn lib3h_crypto_api::Buffer>>>,
-    sec_key: Arc<Mutex<Box<dyn lib3h_crypto_api::Buffer>>>,
-    connection: InStreamWss<InStreamTcp>,
-    //    wss_connection: InStreamWss<InStreamTls<InStreamTcp>>,
-}
-
-#[holochain_tracing_macros::newrelic_autotrace(HOLOCHAIN_CLI)]
-impl Job {
-    pub fn new(connect_uri: &Url2) -> Result<Self, String> {
-        let (pub_key, sec_key) = CRYPTO.with(|crypto| {
-            let mut pub_key = crypto.buf_new_insecure(crypto.sign_public_key_bytes());
-            let mut sec_key = crypto.buf_new_secure(crypto.sign_secret_key_bytes());
-            crypto.sign_keypair(&mut pub_key, &mut sec_key).unwrap();
-            (pub_key, sec_key)
-        });
-        let enc = hcid::HcidEncoding::with_kind("hcs0").map_err(|e| format!("{}", e))?;
-        let agent_id = enc.encode(&*pub_key).unwrap();
-        println!("Generated agent id: {}", agent_id);
-        let connection = await_in_stream_connect(connect_uri)
-            .map_err(|e| format!("Error awaiting connection: {}", e))?;
-        println!("Await successfull");
-        let out = Self {
-            agent_id,
-            pub_key: Arc::new(Mutex::new(pub_key)),
-            sec_key: Arc::new(Mutex::new(sec_key)),
-            connection,
-        };
-
-        Ok(out)
-    }
-
-    /// sign a message and send it to sim2h
-    pub fn send_wire(&mut self, message: WireMessage) {
-        println!("Sending wire message to sim2h: {:?}", message);
-        let payload: Opaque = message.into();
-        let payload_buf: Box<dyn lib3h_crypto_api::Buffer> = Box::new(payload.clone().as_bytes());
-        let sig = base64::encode(
-            &*CRYPTO
-                .with(|crypto| {
-                    let mut sig = crypto.buf_new_insecure(crypto.sign_bytes());
-                    crypto
-                        .sign(&mut sig, &payload_buf, &*self.sec_key.lock().unwrap())
-                        .unwrap();
-                    sig
-                })
-                .read_lock(),
-        );
-        let signed_message = SignedWireMessage {
-            provenance: Provenance::new(self.agent_id.clone().into(), sig.into()),
-            payload,
-        };
-        let to_send: Opaque = signed_message.into();
-        self.connection.write(to_send.as_bytes().into()).unwrap();
-    }
-}
-
-#[holochain_tracing_macros::newrelic_autotrace(HOLOCHAIN_CLI)]
-fn await_in_stream_connect(connect_uri: &Url2) -> Result<InStreamWss<InStreamTcp>, String> {
-    let timeout = std::time::Instant::now()
-        .checked_add(std::time::Duration::from_millis(60000))
-        .unwrap();
-
-    let mut read_frame = WsFrame::default();
-
-    // keep trying to connect
-    loop {
-        //        let config = WssConnectConfig::new(TlsConnectConfig::new(TcpConnectConfig::default()));
-        let config = WssConnectConfig::new(TcpConnectConfig::default());
-        let mut connection =
-            InStreamWss::connect(connect_uri, config).map_err(|e| format!("{}", e))?;
-        connection.write(WsFrame::Ping(b"".to_vec())).unwrap();
-
-        loop {
-            let mut err = false;
-            match connection.read(&mut read_frame) {
-                Ok(_) => return Ok(connection),
-                Err(e) if e.would_block() => (),
-                Err(_) => {
-                    err = true;
-                }
-            }
-
-            if std::time::Instant::now() >= timeout {
-                Err("could not connect within timeout".to_string())?
-            }
-
-            if err {
-                break;
-            }
-
-            std::thread::sleep(std::time::Duration::from_millis(10));
-        }
-
-        std::thread::sleep(std::time::Duration::from_millis(500));
-    }
-}
diff --git a/crates/cli/src/cli/walkman.rs b/crates/cli/src/cli/walkman.rs
new file mode 100644
index 0000000000..ddfa0ed15d
--- /dev/null
+++ b/crates/cli/src/cli/walkman.rs
@@ -0,0 +1,6 @@
+use std::path::PathBuf;
+// use crate::cli::sim2h_client::Sim2hClient;
+
+pub fn walkman(_cassette: PathBuf) {
+    println!("run walkman");
+}
diff --git a/crates/cli/src/main.rs b/crates/cli/src/main.rs
index 8c9f7836ba..d635a48d9a 100755
--- a/crates/cli/src/main.rs
+++ b/crates/cli/src/main.rs
@@ -11,9 +11,9 @@ extern crate holochain_persistence_api;
 extern crate holochain_persistence_file;
 extern crate json_patch;
 extern crate lib3h_crypto_api;
-extern crate lib3h_protocol;
 extern crate lib3h_sodium;
 extern crate sim2h;
+extern crate sim2h_client;
 extern crate structopt;
 #[macro_use]
 extern crate failure;
@@ -164,6 +164,11 @@ enum Cli {
         /// message to send to the sim2h server ('ping' or 'status')
         message: String,
     },
+    Walkman {
+        #[structopt()]
+        /// Path to walkman cassette file for playback
+        cassette: PathBuf,
+    },
 }
 arg_enum! {
     #[derive(Debug)]
@@ -330,10 +335,12 @@ fn run() -> HolochainResult<()> {
         }
 
         Cli::Sim2hClient { url, message } => {
-            println!("url: {}", &url);
-            println!("message: {}", &message);
             cli::sim2h_client(url, message)?;
         }
+
+        Cli::Walkman { cassette } => {
+            cli::walkman(cassette);
+        }
     }
 
     Ok(())
diff --git a/crates/metrics/src/logger.rs b/crates/metrics/src/logger.rs
index 3f15d18b1b..0acd021eea 100644
--- a/crates/metrics/src/logger.rs
+++ b/crates/metrics/src/logger.rs
@@ -21,7 +21,7 @@ impl LoggerMetricPublisher {
 impl MetricPublisher for LoggerMetricPublisher {
     fn publish(&mut self, metric: &Metric) {
         let log_line: LogLine = metric.into();
-        debug!("{}", log_line);
+        trace!("{}", log_line);
     }
 }
 
diff --git a/crates/sim1h/Cargo.toml b/crates/sim1h/Cargo.toml
index 36918c559c..31a846fb0a 100644
--- a/crates/sim1h/Cargo.toml
+++ b/crates/sim1h/Cargo.toml
@@ -21,7 +21,7 @@ holochain_tracing = "=0.0.13"
 uuid = { version = "0.4", features = ["v4"] }
 log = "0.4.8"
 env_logger = "=0.6.1"
-lazy_static = "1.2.0"
+lazy_static = "=1.4.0"
 holochain_persistence_api = "=0.0.13"
 holochain_json_api = "=0.0.17"
 url = "=2.1.0"
diff --git a/crates/sim2h/Cargo.toml b/crates/sim2h/Cargo.toml
index 8055bb2002..963f8b2d8d 100644
--- a/crates/sim2h/Cargo.toml
+++ b/crates/sim2h/Cargo.toml
@@ -26,6 +26,7 @@ holochain_tracing = "=0.0.13"
 holochain_core_types = { version = "=0.0.42-alpha5", path = "../core_types" }
 holochain_locksmith = { version = "=0.0.42-alpha5", path = "../locksmith" }
 holochain_metrics = { version = "=0.0.42-alpha5", path = "../metrics" }
+holochain_walkman_types = { version = "=0.0.42-alpha5", path = "../walkman_types" }
 holochain_common = { version = "=0.0.42-alpha5", path = "../common" }
 holochain_tracing_macros = "0.0.14"
 in_stream = { version = "=0.0.42-alpha5", path = "../in_stream" }
@@ -52,5 +53,8 @@ native-tls = "=0.2.3"
 openssl = "=0.10.25"
 tungstenite = "=0.9.2"
 threadpool = "=1.7.1"
-chashmap = "=2.2.2"
 newrelic="0.2"
+
+[dev-dependencies]
+sim2h_client = { version = "=0.0.42-alpha5", path = "../sim2h_client" }
+chashmap = "=2.2.2"
diff --git a/crates/sim2h/src/debug.rs b/crates/sim2h/src/debug.rs
new file mode 100644
index 0000000000..7052ff952f
--- /dev/null
+++ b/crates/sim2h/src/debug.rs
@@ -0,0 +1,13 @@
+#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
+pub struct DebugData {
+    pub limbo: DebugLimboData,
+    pub msg_queue_size: usize,
+    pub wss_queue_size: usize,
+}
+
+#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
+pub struct DebugLimboData {
+    pub total_connections: usize,
+    pub total_messages: usize,
+    pub max_messages: usize,
+}
diff --git a/crates/sim2h/src/lib.rs b/crates/sim2h/src/lib.rs
index a1b0df01dc..b0c9563a1b 100644
--- a/crates/sim2h/src/lib.rs
+++ b/crates/sim2h/src/lib.rs
@@ -10,6 +10,7 @@ extern crate num_cpus;
 extern crate serde;
 #[macro_use]
 extern crate lazy_static;
+extern crate holochain_walkman_types;
 extern crate newrelic;
 
 #[macro_use]
@@ -21,6 +22,7 @@ mod naive_sharding;
 pub mod cache;
 pub mod connection_state;
 pub mod crypto;
+pub mod debug;
 pub mod error;
 use lib3h_protocol::types::{AgentPubKey, AspectHash, EntryHash};
 mod message_log;
@@ -31,6 +33,11 @@ pub use crate::message_log::MESSAGE_LOGGER;
 use crate::{crypto::*, error::*, naive_sharding::entry_location};
 use cache::*;
 use connection_state::*;
+use holochain_locksmith::Mutex;
+use holochain_metrics::{config::MetricPublisherConfig, Metric};
+use holochain_walkman_types::{walkman_log_sim2h, WalkmanSim2hEvent};
+use in_stream::*;
+use lib3h::rrdht_util::*;
 use lib3h_crypto_api::CryptoSystem;
 use lib3h_protocol::{
     data_types::{
@@ -50,21 +57,29 @@ use futures::{
     future::{BoxFuture, FutureExt},
     stream::StreamExt,
 };
-use in_stream::*;
 use log::*;
 use rand::{seq::SliceRandom, thread_rng};
 use std::{
     collections::{HashMap, HashSet},
     convert::TryFrom,
     sync::Arc,
+    time::Instant,
 };
-
-use holochain_locksmith::Mutex;
-use holochain_metrics::{config::MetricPublisherConfig, Metric};
+lazy_static! {
+    static ref HOLOCHAIN_WALKMAN_SIM2H: bool = std::env::var("HOLOCHAIN_WALKMAN_SIM2H").is_ok();
+}
 
 /// if we can't acquire a lock in 20 seconds, panic!
 const MAX_LOCK_TIMEOUT: u64 = 20000;
 
+fn walkman_log<F: FnOnce() -> WalkmanSim2hEvent>(event: F) {
+    if *HOLOCHAIN_WALKMAN_SIM2H {
+        let log_item = event();
+        let json =
+            serde_json::to_string(&walkman_log_sim2h(log_item)).expect("Serialized walkman event");
+        println!("<walkman>{}</walkman>", json);
+    }
+}
 //set up license_key
 new_relic_setup!("NEW_RELIC_LICENSE_KEY");
 
@@ -99,7 +114,6 @@ impl<T> SendExt<T> for crossbeam_channel::Sender<T> {
         }
     }
 }
-
 const RETRY_FETCH_MISSING_ASPECTS_INTERVAL_MS: u64 = 30000; // 30 seconds
 
 fn conn_lifecycle(desc: &str, uuid: &str, obj: &ConnectionState, uri: &Lib3hUri) {
@@ -405,7 +419,7 @@ pub struct Sim2h {
     connection_mgr_evt_recv: ConnectionMgrEventRecv,
     num_ticks: u64,
     /// when should we try to resync nodes that are still missing aspect data
-    missing_aspects_resync: std::time::Instant,
+    missing_aspects_resync: Instant,
     dht_algorithm: DhtAlgorithm,
     recv_com: tokio::sync::mpsc::UnboundedReceiver<Sim2hCom>,
     sim2h_handle: Sim2hHandle,
@@ -502,6 +516,7 @@ impl Sim2h {
                         .connection_states
                         .insert(url.clone(), (nanoid::simple(), ConnectionState::new()));
 
+                    walkman_log(|| WalkmanSim2hEvent::Connect(url.to_string()));
                     state.connection_mgr.connect(url, wss);
                 }
             });
@@ -806,6 +821,12 @@ impl Sim2h {
                 Ok((signed_message.provenance.source().into(), wire_message))
             })() {
                 Ok((source, wire_message)) => {
+                    walkman_log(|| {
+                        let signed_message = SignedWireMessage::try_from(payload.clone()).unwrap();
+                        let msg_serialized = serde_json::to_string(&signed_message)
+                            .expect("SignedWireMessage serialized");
+                        WalkmanSim2hEvent::Message(url.to_string(), msg_serialized)
+                    });
                     sim2h_handle.handle_message(url, wire_message, source)
                 }
                 Err(error) => {
diff --git a/crates/sim2h/src/sim2h_state.rs b/crates/sim2h/src/sim2h_state.rs
index e454ccb05f..c9e12ff709 100644
--- a/crates/sim2h/src/sim2h_state.rs
+++ b/crates/sim2h/src/sim2h_state.rs
@@ -1,5 +1,4 @@
 use crate::*;
-use lib3h::rrdht_util::*;
 
 pub(crate) struct Sim2hState {
     pub(crate) crypto: Box<dyn CryptoSystem>,
@@ -86,6 +85,7 @@ impl Sim2hState {
                 }
             }
         }
+        walkman_log(|| WalkmanSim2hEvent::Disconnect(uri.0.to_string()));
         trace!("disconnect done");
     }
 
diff --git a/crates/sim2h_client/Cargo.toml b/crates/sim2h_client/Cargo.toml
new file mode 100644
index 0000000000..bc32ceb3cd
--- /dev/null
+++ b/crates/sim2h_client/Cargo.toml
@@ -0,0 +1,48 @@
+[package]
+name = "sim2h_client"
+version = "0.0.42-alpha5"
+authors = ["Holochain Core Dev Team <devcore@holochain.org>"]
+edition = "2018"
+description = "A simulation of lib3h - server executable"
+keywords = ["holochain", "holo", "p2p", "network", "simulation"]
+categories = ["network-programming"]
+license = "GPL-3.0-only"
+readme = "README.md"
+documentation = "https://github.com/holochain/sim2h"
+repository = "https://github.com/holochain/sim2h"
+
+[dependencies]
+sim2h = { version = "=0.0.42-alpha5", path = "../sim2h" }
+lib3h_crypto_api = "=0.0.31"
+in_stream = { version = "=0.0.42-alpha5", path = "../in_stream" }
+url2 = "=0.0.4"
+lib3h_sodium = "=0.0.31"
+holochain_json_api = "=0.0.17"
+holochain_persistence_api = "=0.0.13"
+holochain_persistence_file = "=0.0.13"
+holochain_tracing_macros = "0.0.13"
+newrelic="0.2"
+holochain_wasm_utils = { path = "../wasm_utils" }
+structopt = "=0.3.3"
+failure = "=0.1.5"
+serde = "=1.0.89"
+serde_derive = "=1.0.89"
+serde_json = { version = "=1.0.39", features = ["preserve_order"] }
+toml = "=0.5.0"
+semver = { version = "0.9.0", features = ["serde"] }
+base64 = "=0.10.1"
+colored = "=1.7.0"
+ignore = "=0.4.6"
+rpassword = "=2.1.0"
+tera = "=0.11.20"
+glob = "=0.3.0"
+rustyline = "=5.0.0"
+json-patch = "=0.2.2"
+reqwest = "=0.9.11"
+tempfile = "=3.0.7"
+lib3h_protocol = "=0.0.31"
+tar = "=0.4.26"
+flate2 = "=1.0.12"
+dns-lookup = "=1.0.1"
+hcid = "=0.0.6"
+log = "=0.4.8"
diff --git a/crates/sim2h_client/src/lib.rs b/crates/sim2h_client/src/lib.rs
new file mode 100644
index 0000000000..a503457486
--- /dev/null
+++ b/crates/sim2h_client/src/lib.rs
@@ -0,0 +1,205 @@
+#[macro_use]
+extern crate log;
+
+use holochain_persistence_api::hash::HashString;
+use in_stream::*;
+use lib3h_crypto_api::CryptoSystem;
+use lib3h_protocol::{data_types::*, types::AgentPubKey};
+use lib3h_sodium::SodiumCryptoSystem;
+use sim2h::{
+    crypto::{Provenance, SignedWireMessage},
+    WireMessage,
+};
+use std::sync::{Arc, Mutex};
+use url2::prelude::*;
+
+thread_local! {
+    pub static CRYPTO: Box<dyn CryptoSystem> = Box::new(SodiumCryptoSystem::new());
+}
+
+type Connection = InStreamWss<InStreamTcp>;
+
+pub struct Sim2hClient {
+    agent_pubkey: HashString,
+    #[allow(dead_code)]
+    pub_key: Arc<Mutex<Box<dyn lib3h_crypto_api::Buffer>>>,
+    sec_key: Arc<Mutex<Box<dyn lib3h_crypto_api::Buffer>>>,
+    connection: Connection,
+    //    wss_connection: InStreamWss<InStreamTls<InStreamTcp>>,
+}
+
+impl Sim2hClient {
+    #[holochain_tracing_macros::newrelic_autotrace(HOLOCHAIN_CLI)]
+    pub fn new(connect_uri: &Url2) -> Result<Self, String> {
+        let (pub_key, sec_key) = CRYPTO.with(|crypto| {
+            let mut pub_key = crypto.buf_new_insecure(crypto.sign_public_key_bytes());
+            let mut sec_key = crypto.buf_new_secure(crypto.sign_secret_key_bytes());
+            crypto.sign_keypair(&mut pub_key, &mut sec_key).unwrap();
+            (pub_key, sec_key)
+        });
+        let enc = hcid::HcidEncoding::with_kind("hcs0").map_err(|e| format!("{}", e))?;
+        let agent_pubkey = HashString::from(enc.encode(&*pub_key).unwrap());
+        info!("Generated agent id: {}", agent_pubkey);
+        let connection = await_in_stream_connect(connect_uri)
+            .map_err(|e| format!("Error awaiting connection: {:?}", e))?;
+
+        let out = Self {
+            agent_pubkey,
+            pub_key: Arc::new(Mutex::new(pub_key)),
+            sec_key: Arc::new(Mutex::new(sec_key)),
+            connection,
+        };
+
+        Ok(out)
+    }
+
+    pub fn connection(&mut self) -> &mut Connection {
+        &mut self.connection
+    }
+
+    pub fn agent_pubkey(&self) -> AgentPubKey {
+        AgentPubKey::from(self.agent_pubkey.clone())
+    }
+
+    pub fn await_msg<F>(&mut self, predicate: F) -> Result<WireMessage, ClientError>
+    where
+        F: Fn(&WireMessage) -> bool,
+    {
+        let timeout = std::time::Instant::now()
+            .checked_add(std::time::Duration::from_millis(10000))
+            .unwrap();
+
+        loop {
+            if let Some(msg) = pull_message_from_stream(&mut self.connection)? {
+                if predicate(&msg) {
+                    return Ok(msg);
+                } else {
+                    println!("await_msg skipping message: {:?}", msg);
+                }
+            }
+
+            if std::time::Instant::now() >= timeout {
+                Err(ClientError::Timeout("Timed out during await_msg".into()))?
+            }
+
+            std::thread::sleep(std::time::Duration::from_millis(10));
+        }
+    }
+
+    pub fn try_blocking_reconnect(
+        &mut self,
+        url: &Url2,
+    ) -> Result<(), ClientError> {
+        let timeout = std::time::Instant::now()
+            .checked_add(std::time::Duration::from_millis(60000))
+            .unwrap();
+        loop {
+            if let Ok(connection) = await_in_stream_connect(url) {
+                self.connection = connection;
+                return Ok(());
+            }
+            if std::time::Instant::now() >= timeout {
+                return Err(ClientError::Timeout(
+                    "Failed to reconnect to sim2h_sever".to_string(),
+                ));
+            }
+        }
+    }
+
+    /// sign a message and send it to sim2h
+    pub fn send_wire(&mut self, message: WireMessage) {
+        let payload: Opaque = message.into();
+        let payload_buf: Box<dyn lib3h_crypto_api::Buffer> = Box::new(payload.clone().as_bytes());
+        let sig = base64::encode(
+            &*CRYPTO
+                .with(|crypto| {
+                    let mut sig = crypto.buf_new_insecure(crypto.sign_bytes());
+                    crypto
+                        .sign(&mut sig, &payload_buf, &*self.sec_key.lock().unwrap())
+                        .unwrap();
+                    sig
+                })
+                .read_lock(),
+        );
+        let signed_message = SignedWireMessage {
+            provenance: Provenance::new(self.agent_pubkey.clone(), sig.into()),
+            payload,
+        };
+        let to_send: Opaque = signed_message.into();
+        self.connection.write(to_send.as_bytes().into()).unwrap();
+    }
+}
+
+#[derive(Debug)]
+pub enum ClientError {
+    Disconnected,
+    Timeout(String),
+    Unknown(String),
+}
+
+fn pull_message_from_stream(
+    connection: &mut Connection,
+) -> Result<Option<WireMessage>, ClientError> {
+    let mut frame = WsFrame::default();
+    match connection.read(&mut frame) {
+        Ok(_) => {
+            if let WsFrame::Binary(b) = frame {
+                let msg: WireMessage = serde_json::from_slice(&b).unwrap();
+                Ok(Some(msg))
+            } else {
+                Err(ClientError::Unknown(format!("unexpected {:?}", frame)))
+            }
+        }
+        Err(e) if e.would_block() => Ok(None),
+        Err(_e) => {
+            // let's just assume this meant we were disconnected
+            // TODO: actually match on the Ws error
+            Err(ClientError::Disconnected)
+        }
+    }
+}
+
+#[holochain_tracing_macros::newrelic_autotrace(HOLOCHAIN_CLI)]
+fn await_in_stream_connect(connect_uri: &Url2) -> Result<Connection, ClientError> {
+    let timeout = std::time::Instant::now()
+        .checked_add(std::time::Duration::from_millis(60000))
+        .unwrap();
+
+    let mut read_frame = WsFrame::default();
+
+    // keep trying to connect
+    loop {
+        //        let config = WssConnectConfig::new(TlsConnectConfig::new(TcpConnectConfig::default()));
+        let config = WssConnectConfig::new(TcpConnectConfig::default());
+        let mut connection = InStreamWss::connect(connect_uri, config)
+            .map_err(|e| ClientError::Unknown(format!("{}", e)))?;
+        connection.write(WsFrame::Ping(b"".to_vec())).unwrap();
+
+        loop {
+            let mut err = false;
+            let frame = connection.read(&mut read_frame);
+            println!("read: {:?}", frame);
+            match frame {
+                Ok(_) => return Ok(connection),
+                Err(e) if e.would_block() => (),
+                Err(_) => {
+                    err = true;
+                }
+            }
+
+            if std::time::Instant::now() >= timeout {
+                Err(ClientError::Timeout(
+                    "could not connect within timeout".to_string(),
+                ))?
+            }
+
+            if err {
+                break;
+            }
+
+            std::thread::sleep(std::time::Duration::from_millis(10));
+        }
+
+        std::thread::sleep(std::time::Duration::from_millis(500));
+    }
+}
diff --git a/crates/walkman_cli/Cargo.toml b/crates/walkman_cli/Cargo.toml
new file mode 100644
index 0000000000..2a69babbc3
--- /dev/null
+++ b/crates/walkman_cli/Cargo.toml
@@ -0,0 +1,25 @@
+[package]
+name = "holochain_walkman"
+version = "0.0.42-alpha5"
+authors = ["Holochain Core Dev Team <devcore@holochain.org>"]
+edition = "2018"
+
+[dependencies]
+in_stream = { version = "=0.0.42-alpha5", path = "../in_stream" }
+lib3h_protocol = "=0.0.31"
+structopt = "0.3.3"
+serde_derive = "=1.0.89"
+serde_millis = "0.1.1"
+serde_json = { version = "=1.0.39", features = ["preserve_order"] }
+sim2h = { version = "=0.0.42-alpha5", path = "../sim2h" }
+sim2h_client = { version = "=0.0.42-alpha5", path = "../sim2h_client" }
+holochain_walkman_types = { version = "=0.0.42-alpha5", path = "../walkman_types" }
+url = "=2.1.0"
+url2 = "=0.0.4"
+chrono = "=0.4.6"
+snap = "0.2"
+
+
+[[bin]]
+name = "walkman"
+path = "src/main.rs"
diff --git a/crates/walkman_cli/README.md b/crates/walkman_cli/README.md
new file mode 100644
index 0000000000..693c53ff2c
--- /dev/null
+++ b/crates/walkman_cli/README.md
@@ -0,0 +1,47 @@
+# walkman
+
+For recording and playing back sim2h sessions:
+
+```bash
+# 0. Build walkman CLI (no nix command for this yet)
+cargo install -f --path crates/walkman_cli
+
+# 1. Run a sim2h server with walkman logging turned on
+HOLOCHAIN_WALKMAN_SIM2H=1 sim2h_server -p 9000 |& tee sim2h.log
+
+# 2. Run a test which hits the sim2h_server with a lot of traffic
+./run-a-real-e2e-test.sh
+
+# 3. You can kill the sim2h server when the stress test is over
+
+# 4. Condense the potentially huge log down into a minimal set of messages to replay
+walkman cassette compile --path sim2h.log > sim2h.cassette
+
+# 5. You can view the cassette in a slightly more readable form like so:
+walkman cassette show --path sim2h.cassette
+
+# 6. Start up the sim2h server again (no need to use the env var)
+sim2h_server -p 9000 |& tee sim2h-playback.log
+
+# 7. Playback the cassette with the server you just started up as a target
+walkman playback sim2h --path sim2h.cassette --url ws://localhost:9000 |& tee cassette-playback.log
+```
+
+Steps 1-4 are the recording process, which only has to happen once. When iteratively testing, you can repeat the playback by running steps 6 and 7 (the last two steps) with the same cassette over and over.
+
+## Installation
+
+```
+cargo install --force --path crates/walkman_cli
+```
+## Editing
+If you would like to edit the cassette manually (e.g. change a timestamp) you will need to convert it to and from raw format.
+```bash
+# 1. Convert to raw
+walkman cassette raw --path sim2h.cassette > sim2h.txt
+
+# 2. Edit the text file.
+
+# 3. Compile the raw text file.
+walkman cassette compile-raw --path sim2h.txt > sim2h.cassette
+```
diff --git a/crates/walkman_cli/src/main.rs b/crates/walkman_cli/src/main.rs
new file mode 100644
index 0000000000..43096349b5
--- /dev/null
+++ b/crates/walkman_cli/src/main.rs
@@ -0,0 +1,124 @@
+mod player;
+
+use crate::player::{deserialize_message_data, get_wire_message, Sim2hCassettePlayer};
+use holochain_walkman_types::{Cassette, WalkmanEvent, WalkmanSim2hEvent};
+use std::{fs::File, path::PathBuf};
+use structopt::StructOpt;
+
+pub fn main() {
+    match Opt::from_args() {
+        Opt::Cassette(opt_cassette) => match opt_cassette {
+            OptCassette::Compile(OptPath { path }) => {
+                let cassette = read_cassette_from_log(path);
+                let stdout = std::io::stdout();
+                let wtr = snap::Writer::new(stdout.lock());
+                serde_json::to_writer(wtr, &cassette).expect("Could not serialize cassette data");
+            }
+            OptCassette::Show(OptPath { path }) => {
+                let cassette = read_cassette(path);
+                for item in cassette.logs() {
+                    let time: chrono::DateTime<chrono::offset::Local> = item.time.into();
+                    let WalkmanEvent::Sim2hEvent(event) = &item.event;
+                    let line = match event {
+                        WalkmanSim2hEvent::Connect(url) => format!("{} CONNECT", url),
+                        WalkmanSim2hEvent::Disconnect(url) => format!("{} DISCONNECT", url),
+                        WalkmanSim2hEvent::Message(url, data) => {
+                            let signed = deserialize_message_data(&data);
+                            let wire_msg = get_wire_message(&signed);
+                            format!("{} MSG : {:?}", url, wire_msg)
+                        }
+                    };
+                    println!("{:?} {}", time.timestamp(), line);
+                }
+            }
+            OptCassette::Raw(OptPath { path }) => {
+                let cassette = read_cassette(path);
+                let stdout = std::io::stdout();
+                serde_json::to_writer(stdout, &cassette)
+                    .expect("Could not serialize cassette data");
+            }
+            OptCassette::CompileRaw(OptPath { path }) => {
+                let cassette = read_raw(path);
+                let stdout = std::io::stdout();
+                let wtr = snap::Writer::new(stdout.lock());
+                serde_json::to_writer(wtr, &cassette).expect("Could not serialize cassette data");
+            }
+        },
+        Opt::Playback(opt_sim2h) => match opt_sim2h {
+            OptPlayback::Sim2h(playback) => {
+                let sim2h_url = url2::Url2::try_parse(playback.url).expect("Invalid sim2h url");
+                println!(
+                    "Walkman: playback from {:?} on {}",
+                    playback.path, sim2h_url
+                );
+                let cassette = if playback.raw {
+                    read_cassette_from_log(playback.path)
+                } else {
+                    read_cassette(playback.path)
+                };
+                Sim2hCassettePlayer::new().playback(&sim2h_url, cassette);
+            }
+        },
+    }
+}
+
+fn read_cassette(path: PathBuf) -> Cassette {
+    let file = File::open(path).expect("Couldn't open file for walkman");
+    let reader = std::io::BufReader::new(file);
+    let reader = snap::Reader::new(reader);
+    serde_json::from_reader(reader).expect("Invalid cassette file")
+}
+
+fn read_raw(path: PathBuf) -> Cassette {
+    let file = File::open(path).expect("Couldn't open file for walkman");
+    let reader = std::io::BufReader::new(file);
+    serde_json::from_reader(reader).expect("Invalid cassette file")
+}
+
+fn read_cassette_from_log(path: PathBuf) -> Cassette {
+    let file = File::open(path).expect("Couldn't open file for walkman");
+    let reader = std::io::BufReader::new(file);
+    Cassette::from_log_data(reader)
+}
+
+#[derive(StructOpt)]
+enum Opt {
+    Cassette(OptCassette),
+    Playback(OptPlayback),
+}
+
+#[derive(StructOpt)]
+enum OptCassette {
+    Compile(OptCompile),
+    Show(OptShow),
+    Raw(OptRaw),
+    CompileRaw(OptCompileRaw),
+}
+
+#[derive(StructOpt)]
+enum OptPlayback {
+    Sim2h(OptSim2hPlayback),
+}
+
+#[derive(StructOpt)]
+struct OptPath {
+    #[structopt(short, long)]
+    path: PathBuf,
+}
+
+type OptCompile = OptPath;
+type OptShow = OptPath;
+type OptRaw = OptPath;
+type OptCompileRaw = OptPath;
+
+#[derive(StructOpt)]
+struct OptSim2hPlayback {
+    #[structopt(short, long)]
+    path: PathBuf,
+
+    #[structopt(short, long)]
+    url: String,
+
+    #[structopt(short, long)]
+    raw: bool,
+}
diff --git a/crates/walkman_cli/src/player.rs b/crates/walkman_cli/src/player.rs
new file mode 100644
index 0000000000..748676feb8
--- /dev/null
+++ b/crates/walkman_cli/src/player.rs
@@ -0,0 +1,123 @@
+use holochain_walkman_types::{Cassette, WalkmanEvent, WalkmanLogItem, WalkmanSim2hEvent};
+use in_stream::InStream;
+use lib3h_protocol::{data_types::Opaque, protocol::*};
+use sim2h::{crypto::SignedWireMessage, wire_message::WireMessage};
+use sim2h_client::{ClientError, Sim2hClient};
+use std::{
+    collections::{hash_map::Entry, HashMap},
+    convert::TryInto,
+    thread,
+    time::SystemTime,
+};
+use url2::Url2;
+
+#[derive(Default)]
+pub struct Sim2hCassettePlayer {
+    clients: HashMap<String, Sim2hClient>,
+    last_event: Option<SystemTime>,
+}
+
+impl Sim2hCassettePlayer {
+    pub fn new() -> Self {
+        Self::default()
+    }
+
+    pub fn playback(mut self, sim2h_url: &Url2, cassette: Cassette) {
+        for log in cassette.logs().clone() {
+            match log {
+                WalkmanLogItem { time, event } => {
+                    match self.last_event {
+                        Some(t) => match time.duration_since(t).ok() {
+                            Some(duration) => {
+                                println!("sleeping for {:?}", duration);
+                                thread::sleep(duration);
+                                self.last_event = Some(time);
+                            }
+                            None => {
+                                println!("no delay");
+                            }
+                        },
+                        None => {
+                            self.last_event = Some(time);
+                        }
+                    }
+                    self.playback_event(sim2h_url, event);
+                }
+            }
+        }
+    }
+
+    fn playback_event(&mut self, sim2h_url: &Url2, event: WalkmanEvent) {
+        let WalkmanEvent::Sim2hEvent(event) = event;
+        match event {
+            WalkmanSim2hEvent::Connect(client_url) => match self.clients.entry(client_url.clone()) {
+                Entry::Vacant(e) => {
+                    e.insert(
+                        Sim2hClient::new(sim2h_url).expect("Couldn't create sim2h client"),
+                    );
+                }
+                Entry::Occupied(_) => {
+                    panic!(format!("Tried to connect from url twice: {}", client_url))
+                }
+            },
+            WalkmanSim2hEvent::Disconnect(client_url) => {
+                match self.clients.entry(client_url.clone()) {
+                    Entry::Occupied(e) => {
+                        e.remove_entry();
+                    }
+                    Entry::Vacant(_) => panic!(format!(
+                        "Tried to disconnect from url without being connected: {}",
+                        client_url
+                    )),
+                }
+            }
+            WalkmanSim2hEvent::Message(client_url, message_str) => self.clients
+                .get_mut(&client_url)
+                .map(|client| {
+                    // The Sim2hClient was created with a random keypair, but we are going to bypass that agent here
+                    // and directly send a saved signed message from a different prior Agent
+                    let msg: SignedWireMessage = deserialize_message_data(&message_str);
+                    let wire_msg: WireMessage = get_wire_message(&msg);
+                    println!("Playback WireMessage from {} : {:?}", client_url, wire_msg);
+                    let to_send: Opaque = msg.into();
+                    client
+                        .connection()
+                        .write(to_send.as_bytes().into())
+                        .unwrap();
+
+                    if let WireMessage::ClientToLib3h(ClientToLib3h::JoinSpace(_)) = wire_msg {
+                        // We need to wait for the JoinSpace to complete on the sim2h side,
+                        // but JoinSpaceResult is never sent by sim2h, so we do this hacky waiting
+                        println!("Awaiting Lib3hToClient::HandleGetGossipingEntryListResult after JoinSpace");
+                        while let Err(e) = client.await_msg(|msg| {
+                            if let WireMessage::Lib3hToClient(Lib3hToClient::HandleGetGossipingEntryList(_)) = msg {
+                                true
+                            } else {
+                                false
+                            }
+                        }) {
+                            match e {
+                                ClientError::Disconnected => {
+                                    client.try_blocking_reconnect(sim2h_url).expect("Failed to reconnect");
+                                },
+                                _ => panic!(format!("client error: {:?}", e)),
+                            }
+                        };
+                        println!("Now waiting 100ms because we don't know when the Join is actually done...");
+                        std::thread::sleep(std::time::Duration::from_millis(100));
+                    }
+                })
+                .unwrap_or_else(|| {
+                    panic!("Trying to send message without a client connection")
+                }),
+        }
+    }
+}
+
+pub fn deserialize_message_data(data: &str) -> SignedWireMessage {
+    serde_json::from_str(data).expect("Couldn't parse serialized SignedWireMessage")
+}
+
+pub fn get_wire_message(signed: &SignedWireMessage) -> WireMessage {
+    signed.clone().payload.try_into().unwrap()
+}
diff --git a/crates/walkman_types/Cargo.toml b/crates/walkman_types/Cargo.toml
new file mode 100644
index 0000000000..9475c570ae
--- /dev/null
+++ b/crates/walkman_types/Cargo.toml
@@ -0,0 +1,13 @@
+[package]
+name = "holochain_walkman_types"
+version = "0.0.42-alpha5"
+authors = ["Holochain Core Dev Team <devcore@holochain.org>"]
+edition = "2018"
+
+[dependencies]
+serde = "=1.0.89"
+serde_derive = "=1.0.89"
+serde_millis = "=0.1.1"
+serde_json = "=1.0.39"
+url = "=2.1.0"
+regex = "1.1.2"
diff --git a/crates/walkman_types/src/cassette.rs b/crates/walkman_types/src/cassette.rs
new file mode 100644
index 0000000000..1622d314a8
--- /dev/null
+++ b/crates/walkman_types/src/cassette.rs
@@ -0,0 +1,33 @@
+use crate::event::WalkmanLogItem;
+use regex::Regex;
+use std::io::{BufRead, Read};
+
+#[derive(Serialize, Deserialize)]
+pub struct Cassette {
+    logs: Vec<WalkmanLogItem>,
+}
+
+impl Cassette {
+    pub fn logs(&self) -> &Vec<WalkmanLogItem> {
+        self.logs.as_ref()
+    }
+
+    pub fn from_log_data<R: Read>(reader: std::io::BufReader<R>) -> Cassette {
+        Cassette {
+            logs: reader
+                .lines()
+                .map(|line| line.expect("IO error while parsing log for walkman"))
+                .filter_map(parse_line)
+                .collect(),
+        }
+    }
+}
+
+fn parse_line(line: String) -> Option<WalkmanLogItem> {
+    let re_tag = Regex::new(r"<walkman>(.*?)</walkman>").unwrap();
+    re_tag.captures(&line).and_then(|caps| {
+        caps.get(1).and_then(|m| {
+            serde_json::from_str(m.as_str()).expect("Couldn't parse serialized walkman log item")
+        })
+    })
+}
diff --git a/crates/walkman_types/src/event.rs b/crates/walkman_types/src/event.rs
new file mode 100644
index 0000000000..77139abd1b
--- /dev/null
+++ b/crates/walkman_types/src/event.rs
@@ -0,0 +1,48 @@
+use std::time::SystemTime;
+
+#[derive(Clone, Debug, Serialize, Deserialize)]
+pub struct WalkmanLogItem {
+    #[serde(with = "serde_millis")]
+    pub time: SystemTime,
+    pub event: WalkmanEvent,
+}
+
+#[derive(Clone, Debug, Serialize, Deserialize)]
+pub enum WalkmanEvent {
+    // CoreEvent(Action),
+    Sim2hEvent(WalkmanSim2hEvent),
+}
+
+pub fn walkman_log_sim2h(data: WalkmanSim2hEvent) -> WalkmanLogItem {
+    WalkmanLogItem {
+        time: SystemTime::now(),
+        event: WalkmanEvent::Sim2hEvent(data),
+    }
+}
+
+// trait WalkmanLogger<T> {
+//     fn log(data: T) -> WalkmanLogItem;
+// }
+
+// pub struct WalkmanSim2hLogger {
+//     url: Url,
+// }
+
+// impl WalkmanLogger<WalkmanSim2hEvent> for WalkmanSim2hLogger {
+//     fn log(data: WalkmanSim2hEvent) -> WalkmanLogItem {
+//         WalkmanLogItem {
+//             time: SystemTime::now(),
+//             event: WalkmanEvent::Sim2hEvent(data),
+//         }
+//     }
+// }
+
+#[derive(Clone, Debug, Serialize, Deserialize)]
+pub enum WalkmanSim2hEvent {
+    Connect(Url),
+    Disconnect(Url),
+    Message(Url, WireMessageData),
+}
+
+pub type Url = String;
+pub type WireMessageData = String;
diff --git a/crates/walkman_types/src/lib.rs b/crates/walkman_types/src/lib.rs
new file mode 100644
index 0000000000..be6dbf2538
--- /dev/null
+++ b/crates/walkman_types/src/lib.rs
@@ -0,0 +1,10 @@
+extern crate serde;
+#[macro_use]
+extern crate serde_derive;
+// #[macro_use]
+// extern crate serde_json;
+
+mod cassette;
+mod event;
+pub use cassette::*;
+pub use event::*;