[INFO] fetching crate mecha 0.1.0...
[INFO] testing mecha-0.1.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate mecha 0.1.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate mecha 0.1.0
[INFO] finished tweaking crates.io crate mecha 0.1.0
[INFO] tweaked toml for crates.io crate mecha 0.1.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mecha 0.1.0 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mecha 0.1.0 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" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 93e21ea51bf65d491f9c62ae900574f1c19b486551c9e4c12d922dbd9842fcc9
[INFO] running `Command { std: "docker" "start" "-a" "93e21ea51bf65d491f9c62ae900574f1c19b486551c9e4c12d922dbd9842fcc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "93e21ea51bf65d491f9c62ae900574f1c19b486551c9e4c12d922dbd9842fcc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93e21ea51bf65d491f9c62ae900574f1c19b486551c9e4c12d922dbd9842fcc9", kill_on_drop: false }`
[INFO] [stdout] 93e21ea51bf65d491f9c62ae900574f1c19b486551c9e4c12d922dbd9842fcc9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6b52e4fe20e6c5bb1630fca683d1ce2e27a629380005f6cdadd24a068bb5a8a5
[INFO] running `Command { std: "docker" "start" "-a" "6b52e4fe20e6c5bb1630fca683d1ce2e27a629380005f6cdadd24a068bb5a8a5", kill_on_drop: false }`
[INFO] [stderr]    Compiling mecha v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "6b52e4fe20e6c5bb1630fca683d1ce2e27a629380005f6cdadd24a068bb5a8a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b52e4fe20e6c5bb1630fca683d1ce2e27a629380005f6cdadd24a068bb5a8a5", kill_on_drop: false }`
[INFO] [stdout] 6b52e4fe20e6c5bb1630fca683d1ce2e27a629380005f6cdadd24a068bb5a8a5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b7162f4922359b820a8ce234661d14805b6f4e0b0b595d49da146de314b399e0
[INFO] running `Command { std: "docker" "start" "-a" "b7162f4922359b820a8ce234661d14805b6f4e0b0b595d49da146de314b399e0", kill_on_drop: false }`
[INFO] [stderr]    Compiling mecha v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "b7162f4922359b820a8ce234661d14805b6f4e0b0b595d49da146de314b399e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7162f4922359b820a8ce234661d14805b6f4e0b0b595d49da146de314b399e0", kill_on_drop: false }`
[INFO] [stdout] b7162f4922359b820a8ce234661d14805b6f4e0b0b595d49da146de314b399e0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b2101d6178b26220b78d076485fef2c7b690787e5239ccd4d14f820270a9d058
[INFO] running `Command { std: "docker" "start" "-a" "b2101d6178b26220b78d076485fef2c7b690787e5239ccd4d14f820270a9d058", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/mecha-67ea0c553efd4450)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b2101d6178b26220b78d076485fef2c7b690787e5239ccd4d14f820270a9d058", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2101d6178b26220b78d076485fef2c7b690787e5239ccd4d14f820270a9d058", kill_on_drop: false }`
[INFO] [stdout] b2101d6178b26220b78d076485fef2c7b690787e5239ccd4d14f820270a9d058