[INFO] fetching crate rc_arena 0.1.0...
[INFO] testing rc_arena-0.1.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate rc_arena 0.1.0 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate rc_arena 0.1.0 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rc_arena 0.1.0
[INFO] finished tweaking crates.io crate rc_arena 0.1.0
[INFO] tweaked toml for crates.io crate rc_arena 0.1.0 written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a97d30d7306e39a4d843f98eb88e9180818842c192b18d410513e26e4f09c0d4
[INFO] running `Command { std: "docker" "start" "-a" "a97d30d7306e39a4d843f98eb88e9180818842c192b18d410513e26e4f09c0d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a97d30d7306e39a4d843f98eb88e9180818842c192b18d410513e26e4f09c0d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a97d30d7306e39a4d843f98eb88e9180818842c192b18d410513e26e4f09c0d4", kill_on_drop: false }`
[INFO] [stdout] a97d30d7306e39a4d843f98eb88e9180818842c192b18d410513e26e4f09c0d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f2795ef92a6af19ca3f0d973ef5431d0c3201a6849049f47552146ab19ef639e
[INFO] running `Command { std: "docker" "start" "-a" "f2795ef92a6af19ca3f0d973ef5431d0c3201a6849049f47552146ab19ef639e", kill_on_drop: false }`
[INFO] [stderr]    Compiling rc_arena v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `Command { std: "docker" "inspect" "f2795ef92a6af19ca3f0d973ef5431d0c3201a6849049f47552146ab19ef639e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2795ef92a6af19ca3f0d973ef5431d0c3201a6849049f47552146ab19ef639e", kill_on_drop: false }`
[INFO] [stdout] f2795ef92a6af19ca3f0d973ef5431d0c3201a6849049f47552146ab19ef639e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 521caacc049f339259d6e0fbd9fa1279185435167cb84d878c3597dea50745f3
[INFO] running `Command { std: "docker" "start" "-a" "521caacc049f339259d6e0fbd9fa1279185435167cb84d878c3597dea50745f3", kill_on_drop: false }`
[INFO] [stderr]    Compiling rc_arena v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.69s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/rc_arena-77af7f40d10f7c34)
[INFO] running `Command { std: "docker" "inspect" "521caacc049f339259d6e0fbd9fa1279185435167cb84d878c3597dea50745f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "521caacc049f339259d6e0fbd9fa1279185435167cb84d878c3597dea50745f3", kill_on_drop: false }`
[INFO] [stdout] 521caacc049f339259d6e0fbd9fa1279185435167cb84d878c3597dea50745f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3788af92785c3d619f1a8b1077910da65585ba8dcc48eb82e1a7f57e636e463a
[INFO] running `Command { std: "docker" "start" "-a" "3788af92785c3d619f1a8b1077910da65585ba8dcc48eb82e1a7f57e636e463a", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rc_arena-77af7f40d10f7c34)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test drops_at_once ... ok
[INFO] [stdout] test basic_usecase ... ok
[INFO] [stdout] test formatting ... ok
[INFO] [stdout] test iterates ... ok
[INFO] [stderr]    Doc-tests rc_arena
[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] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - Arena<T>::each (line 151) ... ok
[INFO] [stdout] test src/lib.rs - (line 8) ... ok
[INFO] [stdout] test src/lib.rs - Arena<T>::alloc (line 100) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.32s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3788af92785c3d619f1a8b1077910da65585ba8dcc48eb82e1a7f57e636e463a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3788af92785c3d619f1a8b1077910da65585ba8dcc48eb82e1a7f57e636e463a", kill_on_drop: false }`
[INFO] [stdout] 3788af92785c3d619f1a8b1077910da65585ba8dcc48eb82e1a7f57e636e463a