[INFO] fetching crate cow-rewrite 0.1.0...
[INFO] testing cow-rewrite-0.1.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate cow-rewrite 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate cow-rewrite 0.1.0
[INFO] finished tweaking crates.io crate cow-rewrite 0.1.0
[INFO] tweaked toml for crates.io crate cow-rewrite 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate cow-rewrite 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 821ba84d0b2fed1c4aa7fd34243cca81a3dd2c7dc3d5aa10eb41efb5d5e1d34a
[INFO] running `Command { std: "docker" "start" "-a" "821ba84d0b2fed1c4aa7fd34243cca81a3dd2c7dc3d5aa10eb41efb5d5e1d34a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "821ba84d0b2fed1c4aa7fd34243cca81a3dd2c7dc3d5aa10eb41efb5d5e1d34a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "821ba84d0b2fed1c4aa7fd34243cca81a3dd2c7dc3d5aa10eb41efb5d5e1d34a", kill_on_drop: false }`
[INFO] [stdout] 821ba84d0b2fed1c4aa7fd34243cca81a3dd2c7dc3d5aa10eb41efb5d5e1d34a
[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=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] 7a1a326efbf18d22474c246509451561b0c38c0591e52933dd1f529a225f7632
[INFO] running `Command { std: "docker" "start" "-a" "7a1a326efbf18d22474c246509451561b0c38c0591e52933dd1f529a225f7632", kill_on_drop: false }`
[INFO] [stderr]    Compiling cow-rewrite v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `Command { std: "docker" "inspect" "7a1a326efbf18d22474c246509451561b0c38c0591e52933dd1f529a225f7632", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a1a326efbf18d22474c246509451561b0c38c0591e52933dd1f529a225f7632", kill_on_drop: false }`
[INFO] [stdout] 7a1a326efbf18d22474c246509451561b0c38c0591e52933dd1f529a225f7632
[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=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] 4c8b1ff0ca6fb96df6835be5d9230efc6c3d5ddd883f3e566c75ee5dccd8f95f
[INFO] running `Command { std: "docker" "start" "-a" "4c8b1ff0ca6fb96df6835be5d9230efc6c3d5ddd883f3e566c75ee5dccd8f95f", kill_on_drop: false }`
[INFO] [stderr]    Compiling cow-rewrite v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "4c8b1ff0ca6fb96df6835be5d9230efc6c3d5ddd883f3e566c75ee5dccd8f95f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c8b1ff0ca6fb96df6835be5d9230efc6c3d5ddd883f3e566c75ee5dccd8f95f", kill_on_drop: false }`
[INFO] [stdout] 4c8b1ff0ca6fb96df6835be5d9230efc6c3d5ddd883f3e566c75ee5dccd8f95f
[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=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] ed66ea44558201627931914afeb569e2877a1fca885ecb2bca7c76e1e50b491f
[INFO] running `Command { std: "docker" "start" "-a" "ed66ea44558201627931914afeb569e2877a1fca885ecb2bca7c76e1e50b491f", 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/cow_rewrite-f7f2d461cd2f8684)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::str_write_different ... ok
[INFO] [stdout] test tests::str_write_less ... ok
[INFO] [stdout] test tests::str_write_same ... ok
[INFO] [stdout] test tests::str_write_more ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests cow_rewrite
[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" "ed66ea44558201627931914afeb569e2877a1fca885ecb2bca7c76e1e50b491f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed66ea44558201627931914afeb569e2877a1fca885ecb2bca7c76e1e50b491f", kill_on_drop: false }`
[INFO] [stdout] ed66ea44558201627931914afeb569e2877a1fca885ecb2bca7c76e1e50b491f
