[INFO] fetching crate mcp-langbase-reasoning 0.2.0...
[INFO] checking mcp-langbase-reasoning-0.2.0 against try#93086cfebfccb79083c59d0d3b2052944bba643c for pr-146440-1
[INFO] extracting crate mcp-langbase-reasoning 0.2.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate mcp-langbase-reasoning 0.2.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate mcp-langbase-reasoning 0.2.0
[INFO] tweaked toml for crates.io crate mcp-langbase-reasoning 0.2.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mcp-langbase-reasoning 0.2.0 on toolchain 93086cfebfccb79083c59d0d3b2052944bba643c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mcp-langbase-reasoning 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking mcp-langbase-reasoning-0.2.0 against try#93086cfebfccb79083c59d0d3b2052944bba643c for pr-146440-1
[INFO] extracting crate mcp-langbase-reasoning 0.2.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate mcp-langbase-reasoning 0.2.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate mcp-langbase-reasoning 0.2.0
[INFO] tweaked toml for crates.io crate mcp-langbase-reasoning 0.2.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mcp-langbase-reasoning 0.2.0 on toolchain 93086cfebfccb79083c59d0d3b2052944bba643c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mcp-langbase-reasoning 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking mcp-langbase-reasoning-0.2.0 against try#93086cfebfccb79083c59d0d3b2052944bba643c for pr-146440-1
[INFO] extracting crate mcp-langbase-reasoning 0.2.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate mcp-langbase-reasoning 0.2.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate mcp-langbase-reasoning 0.2.0
[INFO] tweaked toml for crates.io crate mcp-langbase-reasoning 0.2.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mcp-langbase-reasoning 0.2.0 on toolchain 93086cfebfccb79083c59d0d3b2052944bba643c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mcp-langbase-reasoning 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded reqwest v0.12.26
[INFO] [stderr]   Downloaded fragile v2.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3bdb82944d2431b540bb17f5e5f644e70578fa8034f6b9a08d9eb91c11c706b4
[INFO] running `Command { std: "docker" "start" "-a" "3bdb82944d2431b540bb17f5e5f644e70578fa8034f6b9a08d9eb91c11c706b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3bdb82944d2431b540bb17f5e5f644e70578fa8034f6b9a08d9eb91c11c706b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3bdb82944d2431b540bb17f5e5f644e70578fa8034f6b9a08d9eb91c11c706b4", kill_on_drop: false }`
[INFO] [stdout] 3bdb82944d2431b540bb17f5e5f644e70578fa8034f6b9a08d9eb91c11c706b4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c275449f7f129088f16510aefed793b2016e41ff936b09d78c605e8ee612358f
[INFO] running `Command { std: "docker" "start" "-a" "c275449f7f129088f16510aefed793b2016e41ff936b09d78c605e8ee612358f", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_core v1.0.228
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[INFO] [stderr]     Checking reqwest v0.12.26
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[INFO] [stderr]     Checking mcp-langbase-reasoning v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `selection`
[INFO] [stdout]    --> tests/self_improvement_pipes_test.rs:326:10
[INFO] [stdout]     |
[INFO] [stdout] 326 |     let (selection, metrics) = result.unwrap();
[INFO] [stdout]     |          ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_selection`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `metrics`
[INFO] [stdout]    --> tests/self_improvement_pipes_test.rs:569:20
[INFO] [stdout]     |
[INFO] [stdout] 569 |     let (learning, metrics) = result.unwrap();
[INFO] [stdout]     |                    ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_metrics`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> tests/self_improvement_test.rs:285:9
[INFO] [stdout]     |
[INFO] [stdout] 285 |     let mut diagnosis = mock_diagnosis();
[INFO] [stdout]     |         ----^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 25.33s
[INFO] running `Command { std: "docker" "inspect" "c275449f7f129088f16510aefed793b2016e41ff936b09d78c605e8ee612358f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c275449f7f129088f16510aefed793b2016e41ff936b09d78c605e8ee612358f", kill_on_drop: false }`
[INFO] [stdout] c275449f7f129088f16510aefed793b2016e41ff936b09d78c605e8ee612358f
