[INFO] fetching crate sync_tools 0.1.1...
[INFO] testing sync_tools-0.1.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate sync_tools 0.1.1 into /workspace/builds/worker-81/source
[INFO] validating manifest of crates.io crate sync_tools 0.1.1 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 sync_tools 0.1.1
[INFO] finished tweaking crates.io crate sync_tools 0.1.1
[INFO] tweaked toml for crates.io crate sync_tools 0.1.1 written to /workspace/builds/worker-81/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]  Downloading crates ...
[INFO] [stderr]   Downloaded syncpool v0.1.6
[INFO] [stderr]   Downloaded byte_buffer v0.1.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/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] 8f94575de34a184a7979631c2c66d91f90fffd0a4c8c402f3922fc098d259c6d
[INFO] running `Command { std: "docker" "start" "-a" "8f94575de34a184a7979631c2c66d91f90fffd0a4c8c402f3922fc098d259c6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8f94575de34a184a7979631c2c66d91f90fffd0a4c8c402f3922fc098d259c6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f94575de34a184a7979631c2c66d91f90fffd0a4c8c402f3922fc098d259c6d", kill_on_drop: false }`
[INFO] [stdout] 8f94575de34a184a7979631c2c66d91f90fffd0a4c8c402f3922fc098d259c6d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/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] 7b73dc2b2bfa5ff3978b3c6f9bbcad8cba507887dcbf79efa6f6fd0f9ad1bf64
[INFO] running `Command { std: "docker" "start" "-a" "7b73dc2b2bfa5ff3978b3c6f9bbcad8cba507887dcbf79efa6f6fd0f9ad1bf64", kill_on_drop: false }`
[INFO] [stderr]    Compiling syncpool v0.1.6
[INFO] [stderr]    Compiling byte_buffer v0.1.3
[INFO] [stderr]    Compiling sync_tools v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.04s
[INFO] running `Command { std: "docker" "inspect" "7b73dc2b2bfa5ff3978b3c6f9bbcad8cba507887dcbf79efa6f6fd0f9ad1bf64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b73dc2b2bfa5ff3978b3c6f9bbcad8cba507887dcbf79efa6f6fd0f9ad1bf64", kill_on_drop: false }`
[INFO] [stdout] 7b73dc2b2bfa5ff3978b3c6f9bbcad8cba507887dcbf79efa6f6fd0f9ad1bf64
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/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] a95c2930f8d4ff95fd2c065604e63c3d80ed24770b358a3cf615bfa6818ca583
[INFO] running `Command { std: "docker" "start" "-a" "a95c2930f8d4ff95fd2c065604e63c3d80ed24770b358a3cf615bfa6818ca583", kill_on_drop: false }`
[INFO] [stderr]    Compiling sync_tools v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `Command { std: "docker" "inspect" "a95c2930f8d4ff95fd2c065604e63c3d80ed24770b358a3cf615bfa6818ca583", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a95c2930f8d4ff95fd2c065604e63c3d80ed24770b358a3cf615bfa6818ca583", kill_on_drop: false }`
[INFO] [stdout] a95c2930f8d4ff95fd2c065604e63c3d80ed24770b358a3cf615bfa6818ca583
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/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] d78a9a30febce64df70fcabac44994f0f9a0bc6253c42b4cf3fbf63e398fb23e
[INFO] running `Command { std: "docker" "start" "-a" "d78a9a30febce64df70fcabac44994f0f9a0bc6253c42b4cf3fbf63e398fb23e", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/sync_tools-b60cade1ac197ad5)
[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 sync_tools
[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" "d78a9a30febce64df70fcabac44994f0f9a0bc6253c42b4cf3fbf63e398fb23e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d78a9a30febce64df70fcabac44994f0f9a0bc6253c42b4cf3fbf63e398fb23e", kill_on_drop: false }`
[INFO] [stdout] d78a9a30febce64df70fcabac44994f0f9a0bc6253c42b4cf3fbf63e398fb23e