diff --git a/.github/workflows/benchmarks.yml b/.github/workflows/benchmarks.yml
index efcac997..afacb33a 100644
--- a/.github/workflows/benchmarks.yml
+++ b/.github/workflows/benchmarks.yml
@@ -29,7 +29,7 @@ jobs:
     strategy:
       matrix:
         # for now, limit this a bit
-        revision: ["main", "v25.0.0"]
+        revision: ["main", "v38.0.3"]
     env:
       REVISION: ${{ matrix.revision }}
     steps:
@@ -76,7 +76,7 @@ jobs:
       run: |
         cargo run benchmark \
         --engine=artifacts/wasmtime-main/libengine.so \
-        --engine=artifacts/wasmtime-v25.0.0/libengine.so \
+        --engine=artifacts/wasmtime-v38.0.3/libengine.so \
         --processes=4 \
         --iterations-per-process=1 \
         -- "${PARTITION_SUITE}"
diff --git a/.github/workflows/sightglass.yml b/.github/workflows/sightglass.yml
index bf5ec114..39624382 100644
--- a/.github/workflows/sightglass.yml
+++ b/.github/workflows/sightglass.yml
@@ -11,9 +11,7 @@ env:
   CARGO_TERM_COLOR: always
   RUST_LOG: info
 
-  # The Wasmtime commit that we build the bench API from for testing. Bumping
-  # this will automatically cause us to update our CI cache on the next run.
-  WASMTIME_COMMIT: "a2e71dafac4d2e42ed6edbc77081d39a40f4c3ff"
+  REVISION: "v38.0.3"
 
 jobs:
   format:
@@ -33,23 +31,27 @@ jobs:
         os: [ubuntu-latest, macos-latest, windows-latest]
     steps:
     - uses: actions/checkout@v4
-    - run: rustup update nightly
+    - run: rustup update
     - name: Download Cached Wasmtime engine
       uses: actions/cache@v4
       id: wasmtime-cache
       with:
         path: engines/wasmtime/*
-        key: wasmtime-${{ runner.os }}-${{ env.WASMTIME_COMMIT }}
+        key: wasmtime-${{ runner.os }}-${{ env.REVISION }}
 
     - name: Build Wasmtime engine
       if: steps.wasmtime-cache.outputs.cache-hit != 'true'
       working-directory: ./engines/wasmtime
+      env:
+        REVISION: ${{ env.REVISION }}
       run: |
            rustc build.rs
            ./build
 
     - name: Build all
-      run: cargo +nightly build --verbose --all
+      run: cargo build --verbose --all
 
     - name: Test all
-      run: cargo +nightly test --verbose --all
+      run: cargo test --verbose --all
+      env:
+        RUST_BACKTRACE: 1
diff --git a/Cargo.lock b/Cargo.lock
index 9e324301..60efe486 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1116,14 +1116,12 @@ checksum = "eb9f9e6e233e5c4a35559a617bf40a4ec447db2e84c20b55a6f83167b7e57872"
 
 [[package]]
 name = "precision"
-version = "0.1.15"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bbc84fc8369453e02d82fe292dc9b03151c80a36716718c0dcc1ff0fe4029a63"
+version = "0.1.18"
+source = "git+https://github.com/posborne/rust-precision.git?branch=target-stable-asm#f9d7fb3b7d85216f5a9e0b39812cb0a16d60a9cf"
 dependencies = [
  "cc",
  "libc",
- "rustc_version",
- "wasi 0.11.0+wasi-snapshot-preview1",
+ "wasix",
  "wasm-bindgen",
 ]
 
@@ -1389,15 +1387,6 @@ dependencies = [
  "winreg",
 ]
 
-[[package]]
-name = "rustc_version"
-version = "0.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bfa0f585226d2e68097d4f95d113b15b83a82e819ab25717ec0590d9584ef366"
-dependencies = [
- "semver",
-]
-
 [[package]]
 name = "ryu"
 version = "1.0.9"
@@ -1443,12 +1432,6 @@ dependencies = [
  "libc",
 ]
 
-[[package]]
-name = "semver"
-version = "1.0.7"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d65bd28f48be7196d222d95b9243287f48d27aca604e08497513019ff0502cc4"
-
 [[package]]
 name = "serde"
 version = "1.0.136"
@@ -1984,6 +1967,15 @@ version = "0.11.0+wasi-snapshot-preview1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
 
+[[package]]
+name = "wasix"
+version = "0.12.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c1fbb4ef9bbca0c1170e0b00dd28abc9e3b68669821600cad1caaed606583c6d"
+dependencies = [
+ "wasi 0.11.0+wasi-snapshot-preview1",
+]
+
 [[package]]
 name = "wasm-bindgen"
 version = "0.2.82"
diff --git a/benchmarks/libsodium/Dockerfile b/benchmarks/libsodium/Dockerfile
index dd5708c9..1a1255a7 100644
--- a/benchmarks/libsodium/Dockerfile
+++ b/benchmarks/libsodium/Dockerfile
@@ -9,9 +9,9 @@ RUN wget https://ziglang.org/download/0.12.0/zig-linux-x86_64-0.12.0.tar.xz
 RUN tar --extract --verbose --file=zig-linux-x86_64-0.12.0.tar.xz
 ENV PATH="${PATH}:/zig-linux-x86_64-0.12.0"
 RUN echo "zig version = $(zig version)"
-RUN wget https://github.com/jedisct1/libsodium/archive/stable.zip
-RUN unzip stable.zip
-RUN mv /libsodium-stable /libsodium
+RUN wget https://github.com/jedisct1/libsodium/releases/download/1.0.20-RELEASE/libsodium-1.0.20.tar.gz
+RUN tar -xzf libsodium-1.0.20.tar.gz
+RUN mv /libsodium-1.0.20 /libsodium
 
 # Build the benchmarks. Note how we patch the self-timing code with calls to the
 # Sightglass `bench_start()` and `bench_end()` functions. Also note that each
diff --git a/crates/cli/src/benchmark.rs b/crates/cli/src/benchmark.rs
index acefafea..85e563c8 100644
--- a/crates/cli/src/benchmark.rs
+++ b/crates/cli/src/benchmark.rs
@@ -398,7 +398,10 @@ impl BenchmarkCommand {
 
             anyhow::ensure!(
                 output.status.success(),
-                "benchmark subprocess did not exit successfully"
+                "benchmark subprocess did not exit successfully: {}\nstderr: {}\nstdout: {}",
+                output.status,
+                String::from_utf8_lossy(&output.stderr),
+                String::from_utf8_lossy(&output.stdout)
             );
 
             eprintln!(".");
diff --git a/crates/recorder/Cargo.toml b/crates/recorder/Cargo.toml
index 936e4f21..2f0106f1 100644
--- a/crates/recorder/Cargo.toml
+++ b/crates/recorder/Cargo.toml
@@ -9,7 +9,7 @@ edition = "2021"
 anyhow = "1.0"
 libloading = "0.7"
 log = "0.4"
-precision = "0.1.15"
+precision = { git = "https://github.com/posborne/rust-precision.git", branch = "target-stable-asm" }
 serde = { version = "1.0.118", features = ["derive"] }
 sightglass-build = { path = "../build" }
 sightglass-data = { path = "../data" }