[INFO] fetching crate optimistic-cell 0.1.0...
[INFO] testing optimistic-cell-0.1.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate optimistic-cell 0.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate optimistic-cell 0.1.0
[INFO] finished tweaking crates.io crate optimistic-cell 0.1.0
[INFO] tweaked toml for crates.io crate optimistic-cell 0.1.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate optimistic-cell 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] [stderr]     Blocking waiting for file lock on package cache
[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-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2927db8c2feee61fa6f38979935fc789514e76bd5061c4981733df59f923f920
[INFO] running `Command { std: "docker" "start" "-a" "2927db8c2feee61fa6f38979935fc789514e76bd5061c4981733df59f923f920", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2927db8c2feee61fa6f38979935fc789514e76bd5061c4981733df59f923f920", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2927db8c2feee61fa6f38979935fc789514e76bd5061c4981733df59f923f920", kill_on_drop: false }`
[INFO] [stdout] 2927db8c2feee61fa6f38979935fc789514e76bd5061c4981733df59f923f920
[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=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] 3b0d79105ff59d511cade91d27b36d0f775bbd31a17f95d0f2958b355cebc442
[INFO] running `Command { std: "docker" "start" "-a" "3b0d79105ff59d511cade91d27b36d0f775bbd31a17f95d0f2958b355cebc442", kill_on_drop: false }`
[INFO] [stderr]    Compiling optimistic-cell v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] running `Command { std: "docker" "inspect" "3b0d79105ff59d511cade91d27b36d0f775bbd31a17f95d0f2958b355cebc442", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b0d79105ff59d511cade91d27b36d0f775bbd31a17f95d0f2958b355cebc442", kill_on_drop: false }`
[INFO] [stdout] 3b0d79105ff59d511cade91d27b36d0f775bbd31a17f95d0f2958b355cebc442
[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=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] 9f0ee7eea91523faccdd3df21a98541e49ce3efd308477d1c48495de0afc440f
[INFO] running `Command { std: "docker" "start" "-a" "9f0ee7eea91523faccdd3df21a98541e49ce3efd308477d1c48495de0afc440f", kill_on_drop: false }`
[INFO] [stderr]    Compiling optimistic-cell v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `Command { std: "docker" "inspect" "9f0ee7eea91523faccdd3df21a98541e49ce3efd308477d1c48495de0afc440f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f0ee7eea91523faccdd3df21a98541e49ce3efd308477d1c48495de0afc440f", kill_on_drop: false }`
[INFO] [stdout] 9f0ee7eea91523faccdd3df21a98541e49ce3efd308477d1c48495de0afc440f
[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=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] 2ba10f1276a4e2b1b141c3d25ce5d0ebb89f4f867acd5f1aff62926cef840645
[INFO] running `Command { std: "docker" "start" "-a" "2ba10f1276a4e2b1b141c3d25ce5d0ebb89f4f867acd5f1aff62926cef840645", 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/optimistic_cell-ffa0962c0ec88020)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests optimistic_cell
[INFO] [stdout] test concurrent_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 43.61s
[INFO] [stdout] 
[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" "2ba10f1276a4e2b1b141c3d25ce5d0ebb89f4f867acd5f1aff62926cef840645", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ba10f1276a4e2b1b141c3d25ce5d0ebb89f4f867acd5f1aff62926cef840645", kill_on_drop: false }`
[INFO] [stdout] 2ba10f1276a4e2b1b141c3d25ce5d0ebb89f4f867acd5f1aff62926cef840645