[INFO] fetching crate walk 0.0.0...
[INFO] testing walk-0.0.0 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate walk 0.0.0 into /workspace/builds/worker-112/source
[INFO] validating manifest of crates.io crate walk 0.0.0 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate walk 0.0.0
[INFO] finished tweaking crates.io crate walk 0.0.0
[INFO] tweaked toml for crates.io crate walk 0.0.0 written to /workspace/builds/worker-112/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "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-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] be262a0284590d630da9f81b3046b8c1f8dcd1d3cdb664606e802884817a7a3f
[INFO] running `Command { std: "docker" "start" "-a" "be262a0284590d630da9f81b3046b8c1f8dcd1d3cdb664606e802884817a7a3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "be262a0284590d630da9f81b3046b8c1f8dcd1d3cdb664606e802884817a7a3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be262a0284590d630da9f81b3046b8c1f8dcd1d3cdb664606e802884817a7a3f", kill_on_drop: false }`
[INFO] [stdout] be262a0284590d630da9f81b3046b8c1f8dcd1d3cdb664606e802884817a7a3f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c95b1ed45c4e36e7b2fd65158b1c397259aa48e057ba17b1dc07282ffaa60f35
[INFO] running `Command { std: "docker" "start" "-a" "c95b1ed45c4e36e7b2fd65158b1c397259aa48e057ba17b1dc07282ffaa60f35", kill_on_drop: false }`
[INFO] [stderr]    Compiling walk v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `Command { std: "docker" "inspect" "c95b1ed45c4e36e7b2fd65158b1c397259aa48e057ba17b1dc07282ffaa60f35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c95b1ed45c4e36e7b2fd65158b1c397259aa48e057ba17b1dc07282ffaa60f35", kill_on_drop: false }`
[INFO] [stdout] c95b1ed45c4e36e7b2fd65158b1c397259aa48e057ba17b1dc07282ffaa60f35
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ce0d388c835043cadebe349f7a632e571e7afc9ecd96742ef76e6595b01875e8
[INFO] running `Command { std: "docker" "start" "-a" "ce0d388c835043cadebe349f7a632e571e7afc9ecd96742ef76e6595b01875e8", kill_on_drop: false }`
[INFO] [stderr]    Compiling walk v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "ce0d388c835043cadebe349f7a632e571e7afc9ecd96742ef76e6595b01875e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce0d388c835043cadebe349f7a632e571e7afc9ecd96742ef76e6595b01875e8", kill_on_drop: false }`
[INFO] [stdout] ce0d388c835043cadebe349f7a632e571e7afc9ecd96742ef76e6595b01875e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 874c42182592b7543296853af3cb352625a83e5ca7195f8a4a577e969343437e
[INFO] running `Command { std: "docker" "start" "-a" "874c42182592b7543296853af3cb352625a83e5ca7195f8a4a577e969343437e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/walk-6a8d82cd550884b1)
[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 walk
[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" "874c42182592b7543296853af3cb352625a83e5ca7195f8a4a577e969343437e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "874c42182592b7543296853af3cb352625a83e5ca7195f8a4a577e969343437e", kill_on_drop: false }`
[INFO] [stdout] 874c42182592b7543296853af3cb352625a83e5ca7195f8a4a577e969343437e