[INFO] fetching crate cow_arc 0.2.2...
[INFO] testing cow_arc-0.2.2 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate cow_arc 0.2.2 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate cow_arc 0.2.2
[INFO] finished tweaking crates.io crate cow_arc 0.2.2
[INFO] tweaked toml for crates.io crate cow_arc 0.2.2 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate cow_arc 0.2.2 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] [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] f27e1e48826d82c9c80ff0b71868c64550d7dab3dc4af331aaf7ecd30908ae9e
[INFO] running `Command { std: "docker" "start" "-a" "f27e1e48826d82c9c80ff0b71868c64550d7dab3dc4af331aaf7ecd30908ae9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f27e1e48826d82c9c80ff0b71868c64550d7dab3dc4af331aaf7ecd30908ae9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f27e1e48826d82c9c80ff0b71868c64550d7dab3dc4af331aaf7ecd30908ae9e", kill_on_drop: false }`
[INFO] [stdout] f27e1e48826d82c9c80ff0b71868c64550d7dab3dc4af331aaf7ecd30908ae9e
[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] a7bb9d81e1a098b2fc1d7e8ac060cc9fceac5e858b672c766e18653af98e7424
[INFO] running `Command { std: "docker" "start" "-a" "a7bb9d81e1a098b2fc1d7e8ac060cc9fceac5e858b672c766e18653af98e7424", kill_on_drop: false }`
[INFO] [stderr]    Compiling cow_arc v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "a7bb9d81e1a098b2fc1d7e8ac060cc9fceac5e858b672c766e18653af98e7424", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7bb9d81e1a098b2fc1d7e8ac060cc9fceac5e858b672c766e18653af98e7424", kill_on_drop: false }`
[INFO] [stdout] a7bb9d81e1a098b2fc1d7e8ac060cc9fceac5e858b672c766e18653af98e7424
[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] 76b11c18da071eeaab98769b1614de6aef33be9aee8d22921569e444ab905b75
[INFO] running `Command { std: "docker" "start" "-a" "76b11c18da071eeaab98769b1614de6aef33be9aee8d22921569e444ab905b75", kill_on_drop: false }`
[INFO] [stderr]    Compiling cow_arc v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `Command { std: "docker" "inspect" "76b11c18da071eeaab98769b1614de6aef33be9aee8d22921569e444ab905b75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76b11c18da071eeaab98769b1614de6aef33be9aee8d22921569e444ab905b75", kill_on_drop: false }`
[INFO] [stdout] 76b11c18da071eeaab98769b1614de6aef33be9aee8d22921569e444ab905b75
[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] 80515967bb4bceb9c40423e4eff5b2c9dcd28c0b5cad7b02388c007413551026
[INFO] running `Command { std: "docker" "start" "-a" "80515967bb4bceb9c40423e4eff5b2c9dcd28c0b5cad7b02388c007413551026", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/cow_arc-cac4b79e95788ea6)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests cow_arc
[INFO] [stdout] test tests::test_cow_arc ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - CowArc<T>::update_val (line 55) ... ok
[INFO] [stdout] test src/lib.rs - CowArc<T>::set_val (line 31) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.42s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "80515967bb4bceb9c40423e4eff5b2c9dcd28c0b5cad7b02388c007413551026", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80515967bb4bceb9c40423e4eff5b2c9dcd28c0b5cad7b02388c007413551026", kill_on_drop: false }`
[INFO] [stdout] 80515967bb4bceb9c40423e4eff5b2c9dcd28c0b5cad7b02388c007413551026