[INFO] fetching crate mcp-langbase-reasoning 0.2.0...
[INFO] checking mcp-langbase-reasoning-0.2.0 against try#df1b9bf194c9183fb7c0604484171064069ce232 for pr-149195-4
[INFO] extracting crate mcp-langbase-reasoning 0.2.0 into /workspace/builds/worker-0-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-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mcp-langbase-reasoning 0.2.0 on toolchain df1b9bf194c9183fb7c0604484171064069ce232
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+df1b9bf194c9183fb7c0604484171064069ce232" "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" "+df1b9bf194c9183fb7c0604484171064069ce232" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:29356a839a4d14451438f794ce8414e707d72405f44418718d724d22562fe786" "/opt/rustwide/cargo-home/bin/cargo" "+df1b9bf194c9183fb7c0604484171064069ce232" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bd6a21f5852d895960fd6cfb9cdc267c2951d6ce98339d3c113a80b91c0d14a8
[INFO] running `Command { std: "docker" "start" "-a" "bd6a21f5852d895960fd6cfb9cdc267c2951d6ce98339d3c113a80b91c0d14a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bd6a21f5852d895960fd6cfb9cdc267c2951d6ce98339d3c113a80b91c0d14a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd6a21f5852d895960fd6cfb9cdc267c2951d6ce98339d3c113a80b91c0d14a8", kill_on_drop: false }`
[INFO] [stdout] bd6a21f5852d895960fd6cfb9cdc267c2951d6ce98339d3c113a80b91c0d14a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:29356a839a4d14451438f794ce8414e707d72405f44418718d724d22562fe786" "/opt/rustwide/cargo-home/bin/cargo" "+df1b9bf194c9183fb7c0604484171064069ce232" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6e496c4e6ec3d8dee9cd173c69efe81b7dba54c7c49a06040a45ed66ca06b4a2
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[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] [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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 40s
[INFO] running `Command { std: "docker" "inspect" "6e496c4e6ec3d8dee9cd173c69efe81b7dba54c7c49a06040a45ed66ca06b4a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e496c4e6ec3d8dee9cd173c69efe81b7dba54c7c49a06040a45ed66ca06b4a2", kill_on_drop: false }`
[INFO] [stdout] 6e496c4e6ec3d8dee9cd173c69efe81b7dba54c7c49a06040a45ed66ca06b4a2
