[INFO] fetching crate block-devs 0.1.0...
[INFO] testing block-devs-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate block-devs 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate block-devs 0.1.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate block-devs 0.1.0
[INFO] finished tweaking crates.io crate block-devs 0.1.0
[INFO] tweaked toml for crates.io crate block-devs 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 16ebbd1bd2cb7eb5e2b82405c16a315cf54b47f5a857cf8d690082ba614c5128
[INFO] running `Command { std: "docker" "start" "-a" "16ebbd1bd2cb7eb5e2b82405c16a315cf54b47f5a857cf8d690082ba614c5128", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "16ebbd1bd2cb7eb5e2b82405c16a315cf54b47f5a857cf8d690082ba614c5128", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16ebbd1bd2cb7eb5e2b82405c16a315cf54b47f5a857cf8d690082ba614c5128", kill_on_drop: false }`
[INFO] [stdout] 16ebbd1bd2cb7eb5e2b82405c16a315cf54b47f5a857cf8d690082ba614c5128
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c30b5343cd756a00a872d83f1e576aa3ebc516ffa5aa625c5ebe746b6744a1bb
[INFO] running `Command { std: "docker" "start" "-a" "c30b5343cd756a00a872d83f1e576aa3ebc516ffa5aa625c5ebe746b6744a1bb", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling nix v0.19.1
[INFO] [stderr]    Compiling block-devs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.53s
[INFO] running `Command { std: "docker" "inspect" "c30b5343cd756a00a872d83f1e576aa3ebc516ffa5aa625c5ebe746b6744a1bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c30b5343cd756a00a872d83f1e576aa3ebc516ffa5aa625c5ebe746b6744a1bb", kill_on_drop: false }`
[INFO] [stdout] c30b5343cd756a00a872d83f1e576aa3ebc516ffa5aa625c5ebe746b6744a1bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8b5c146fd2b5a63f3aca2efc129c4f297e72563c4b06db9c6bb62fb4e7413f8a
[INFO] running `Command { std: "docker" "start" "-a" "8b5c146fd2b5a63f3aca2efc129c4f297e72563c4b06db9c6bb62fb4e7413f8a", kill_on_drop: false }`
[INFO] [stderr]    Compiling block-devs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "8b5c146fd2b5a63f3aca2efc129c4f297e72563c4b06db9c6bb62fb4e7413f8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b5c146fd2b5a63f3aca2efc129c4f297e72563c4b06db9c6bb62fb4e7413f8a", kill_on_drop: false }`
[INFO] [stdout] 8b5c146fd2b5a63f3aca2efc129c4f297e72563c4b06db9c6bb62fb4e7413f8a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b0d0d5d6fed9ebc7ff04c88dd2d126cb6fdb966d0b92e94e5fd4452f60df92b8
[INFO] running `Command { std: "docker" "start" "-a" "b0d0d5d6fed9ebc7ff04c88dd2d126cb6fdb966d0b92e94e5fd4452f60df92b8", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/block_devs-2afdfb0786445fac)
[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 block-devs
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 11) - compile ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b0d0d5d6fed9ebc7ff04c88dd2d126cb6fdb966d0b92e94e5fd4452f60df92b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0d0d5d6fed9ebc7ff04c88dd2d126cb6fdb966d0b92e94e5fd4452f60df92b8", kill_on_drop: false }`
[INFO] [stdout] b0d0d5d6fed9ebc7ff04c88dd2d126cb6fdb966d0b92e94e5fd4452f60df92b8