[INFO] fetching crate matte 0.3.1...
[INFO] testing matte-0.3.1 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate matte 0.3.1 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate matte 0.3.1
[INFO] finished tweaking crates.io crate matte 0.3.1
[INFO] tweaked toml for crates.io crate matte 0.3.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate matte 0.3.1 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 matte 0.3.1 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] f89be833314305fe4be2d863de71d31e899a3443b72aeea2a207a97a58fa37ed
[INFO] running `Command { std: "docker" "start" "-a" "f89be833314305fe4be2d863de71d31e899a3443b72aeea2a207a97a58fa37ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f89be833314305fe4be2d863de71d31e899a3443b72aeea2a207a97a58fa37ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f89be833314305fe4be2d863de71d31e899a3443b72aeea2a207a97a58fa37ed", kill_on_drop: false }`
[INFO] [stdout] f89be833314305fe4be2d863de71d31e899a3443b72aeea2a207a97a58fa37ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] a98195ae1f33fc793e6709f745f459c0172cb6653a0cde6dcdefcc9ce0b6019d
[INFO] running `Command { std: "docker" "start" "-a" "a98195ae1f33fc793e6709f745f459c0172cb6653a0cde6dcdefcc9ce0b6019d", kill_on_drop: false }`
[INFO] [stderr]    Compiling matte v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] running `Command { std: "docker" "inspect" "a98195ae1f33fc793e6709f745f459c0172cb6653a0cde6dcdefcc9ce0b6019d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a98195ae1f33fc793e6709f745f459c0172cb6653a0cde6dcdefcc9ce0b6019d", kill_on_drop: false }`
[INFO] [stdout] a98195ae1f33fc793e6709f745f459c0172cb6653a0cde6dcdefcc9ce0b6019d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 07a8d26607b281b321a49f701d6773b70176812396b3322133916194234b6fd8
[INFO] running `Command { std: "docker" "start" "-a" "07a8d26607b281b321a49f701d6773b70176812396b3322133916194234b6fd8", kill_on_drop: false }`
[INFO] [stderr]    Compiling matte v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.18s
[INFO] running `Command { std: "docker" "inspect" "07a8d26607b281b321a49f701d6773b70176812396b3322133916194234b6fd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07a8d26607b281b321a49f701d6773b70176812396b3322133916194234b6fd8", kill_on_drop: false }`
[INFO] [stdout] 07a8d26607b281b321a49f701d6773b70176812396b3322133916194234b6fd8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 00f88690f2b821aa2acb8809a28949df6186cc8e1ff10020789763f72fe74c4f
[INFO] running `Command { std: "docker" "start" "-a" "00f88690f2b821aa2acb8809a28949df6186cc8e1ff10020789763f72fe74c4f", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/matte-6dd7eb2c321507d9)
[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] [stderr]    Doc-tests matte
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test readme.md - (line 31) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "00f88690f2b821aa2acb8809a28949df6186cc8e1ff10020789763f72fe74c4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00f88690f2b821aa2acb8809a28949df6186cc8e1ff10020789763f72fe74c4f", kill_on_drop: false }`
[INFO] [stdout] 00f88690f2b821aa2acb8809a28949df6186cc8e1ff10020789763f72fe74c4f