RUST-968 Enable u2i feature by default (#294)

Author: patrickfreed

.evergreen/config.yml

@@ -82,15 +82,15 @@ functions:
           ${PREPARE_SHELL}
           .evergreen/run-tests.sh
 
-  "run u2i tests":
+  "run tests no default features":
     - command: shell.exec
       type: test
       params:
         shell: bash
         working_dir: "src"
         script: |
           ${PREPARE_SHELL}
-          .evergreen/run-tests-u2i.sh
+          .evergreen/run-tests-no-default-features.sh
 
   "compile only":
     - command: shell.exec
@@ -146,9 +146,9 @@ tasks:
     commands:
       - func: "run tests"
 
-  - name: "test-u2i"
+  - name: "test-no-default-features"
     commands:
-      - func: "run u2i tests"
+      - func: "run tests no default features"
 
   - name: "compile-only"
     commands:
@@ -182,7 +182,7 @@ buildvariants:
     - ubuntu1804-test
   tasks:
     - name: "test"
-    - name: "test-u2i"
+    - name: "test-no-default-features"
 
 - matrix_name: "compile only"
   matrix_spec:

.evergreen/run-tests-no-default-features.sh

@@ -0,0 +1,9 @@
+#!/bin/sh
+
+set -o errexit
+
+. ~/.cargo/env
+RUST_BACKTRACE=1 cargo test --no-default-features
+
+cd serde-tests
+RUST_BACKTRACE=1 cargo test --no-default-features

.evergreen/run-tests-u2i.sh

@@ -31,13 +31,12 @@ exclude = [
 ]
 
 [features]
-# no features by default
-default = []
+default = ["u2i"]
 # if enabled, include API for interfacing with chrono 0.4
 chrono-0_4 = []
 # if enabled, include API for interfacing with uuid 0.8
 uuid-0_8 = []
-# attempt to encode unsigned types in signed types
+# attempt to encode unsigned types in signed types in serde serializers
 u2i = []
 
 [lib]

Cargo.toml

@@ -5,10 +5,11 @@ authors = ["Kevin Yeh <[email protected]>"]
 edition = "2018"
 
 [features]
+default = ["u2i"]
 u2i = ["bson/u2i"]
 
 [dependencies]
-bson = { path = ".." }
+bson = { path = "..", default-features = false }
 serde = { version = "1.0", features = ["derive"] }
 pretty_assertions = "0.6.1"
 hex = "0.4.2"