[INFO] fetching crate serial-io 0.3.0...
[INFO] testing serial-io-0.3.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate serial-io 0.3.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate serial-io 0.3.0 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 serial-io 0.3.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate serial-io 0.3.0
[INFO] tweaked toml for crates.io crate serial-io 0.3.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate serial-io 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 7f3d78dcadbd6ee612061d0bd8de1a3503238b79d87bc283f5d403df4331fb6e
[INFO] running `Command { std: "docker" "start" "-a" "7f3d78dcadbd6ee612061d0bd8de1a3503238b79d87bc283f5d403df4331fb6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7f3d78dcadbd6ee612061d0bd8de1a3503238b79d87bc283f5d403df4331fb6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f3d78dcadbd6ee612061d0bd8de1a3503238b79d87bc283f5d403df4331fb6e", kill_on_drop: false }`
[INFO] [stdout] 7f3d78dcadbd6ee612061d0bd8de1a3503238b79d87bc283f5d403df4331fb6e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] db74057c8debfe07188c8896da649329d29ffc2152f2bd3184142817a98f2d5d
[INFO] running `Command { std: "docker" "start" "-a" "db74057c8debfe07188c8896da649329d29ffc2152f2bd3184142817a98f2d5d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.96
[INFO] [stderr]    Compiling nix v0.16.1
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]    Compiling nix v0.21.0
[INFO] [stderr]    Compiling mio v0.7.11
[INFO] [stderr]    Compiling libudev v0.2.0
[INFO] [stderr]    Compiling serialport v4.0.1
[INFO] [stderr]    Compiling serial-io v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.20s
[INFO] running `Command { std: "docker" "inspect" "db74057c8debfe07188c8896da649329d29ffc2152f2bd3184142817a98f2d5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db74057c8debfe07188c8896da649329d29ffc2152f2bd3184142817a98f2d5d", kill_on_drop: false }`
[INFO] [stdout] db74057c8debfe07188c8896da649329d29ffc2152f2bd3184142817a98f2d5d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 9d56ad43be35acfd9c1a1ee673b2df056a088bd9cffa336b75e345000884719e
[INFO] running `Command { std: "docker" "start" "-a" "9d56ad43be35acfd9c1a1ee673b2df056a088bd9cffa336b75e345000884719e", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling tokio v1.6.1
[INFO] [stderr]    Compiling tokio-macros v1.2.0
[INFO] [stderr]    Compiling tokio-util v0.6.7
[INFO] [stderr]    Compiling serial-io v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 15.35s
[INFO] running `Command { std: "docker" "inspect" "9d56ad43be35acfd9c1a1ee673b2df056a088bd9cffa336b75e345000884719e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d56ad43be35acfd9c1a1ee673b2df056a088bd9cffa336b75e345000884719e", kill_on_drop: false }`
[INFO] [stdout] 9d56ad43be35acfd9c1a1ee673b2df056a088bd9cffa336b75e345000884719e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] c2dfd0cd0edccd1493a9c8799f0f7ab7491092e5750c1c6dc8e0930f13dffa25
[INFO] running `Command { std: "docker" "start" "-a" "c2dfd0cd0edccd1493a9c8799f0f7ab7491092e5750c1c6dc8e0930f13dffa25", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/serial_io-ae1059999fffb504)
[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]      Running tests/test_unix.rs (/opt/rustwide/target/debug/deps/test_unix-4324a1925e53b050)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests serial-io
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test_from_builder ... ignored
[INFO] [stdout] test test_serial_pair ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/unix.rs - unix::Serial::from_builder (line 40) ... ignored
[INFO] [stdout] test src/unix.rs - unix::Serial::pair (line 83) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.62s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c2dfd0cd0edccd1493a9c8799f0f7ab7491092e5750c1c6dc8e0930f13dffa25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2dfd0cd0edccd1493a9c8799f0f7ab7491092e5750c1c6dc8e0930f13dffa25", kill_on_drop: false }`
[INFO] [stdout] c2dfd0cd0edccd1493a9c8799f0f7ab7491092e5750c1c6dc8e0930f13dffa25