[INFO] updating cached repository https://github.com/knoby/cybercon
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ebd97c2ba4c49d393d97c4ef1c6c3ca90988d22a
[INFO] testing knoby/cybercon against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fknoby%2Fcybercon" "work/builds/worker-2/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/knoby/cybercon on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/knoby/cybercon
[INFO] finished tweaking git repo https://github.com/knoby/cybercon
[INFO] tweaked toml for git repo https://github.com/knoby/cybercon written to work/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/knoby/cybercon already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 35faa2d62314e2fa108773f60e404744c4aff736cd00dbf202046397e8949878
[INFO] running `"docker" "start" "-a" "35faa2d62314e2fa108773f60e404744c4aff736cd00dbf202046397e8949878"`
[INFO] [stderr]    Compiling ioctl-rs v0.1.6
[INFO] [stderr]    Compiling serial-core v0.4.0
[INFO] [stderr]    Compiling serial-unix v0.4.0
[INFO] [stderr]    Compiling serial v0.4.0
[INFO] [stderr]    Compiling cybercon v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]  --> src/main.rs:6:2
[INFO] [stderr]   |
[INFO] [stderr] 6 |     cm_com::connect("/dev/ttyUSB0".to_string());
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.45s
[INFO] running `"docker" "inspect" "35faa2d62314e2fa108773f60e404744c4aff736cd00dbf202046397e8949878"`
[INFO] running `"docker" "rm" "-f" "35faa2d62314e2fa108773f60e404744c4aff736cd00dbf202046397e8949878"`
[INFO] [stdout] 35faa2d62314e2fa108773f60e404744c4aff736cd00dbf202046397e8949878
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 29741f0a389b0ef0e937fa1d7364ecec0da0c4c9c1898b7bebadea65e6400170
[INFO] running `"docker" "start" "-a" "29741f0a389b0ef0e937fa1d7364ecec0da0c4c9c1898b7bebadea65e6400170"`
[INFO] [stderr]    Compiling cybercon v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]  --> src/main.rs:6:2
[INFO] [stderr]   |
[INFO] [stderr] 6 |     cm_com::connect("/dev/ttyUSB0".to_string());
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.90s
[INFO] running `"docker" "inspect" "29741f0a389b0ef0e937fa1d7364ecec0da0c4c9c1898b7bebadea65e6400170"`
[INFO] running `"docker" "rm" "-f" "29741f0a389b0ef0e937fa1d7364ecec0da0c4c9c1898b7bebadea65e6400170"`
[INFO] [stdout] 29741f0a389b0ef0e937fa1d7364ecec0da0c4c9c1898b7bebadea65e6400170
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] 3c6c9eda0aec37a22d113f9432686f6b63c487bcee59719a074cd0fcafd8ad3e
[INFO] running `"docker" "start" "-a" "3c6c9eda0aec37a22d113f9432686f6b63c487bcee59719a074cd0fcafd8ad3e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/cybercon-61c4793b32f16202
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test cm_com::msg_gen::tests::msg_check ... ok
[INFO] [stdout] test cm_com::msg_gen::tests::payload_check ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "3c6c9eda0aec37a22d113f9432686f6b63c487bcee59719a074cd0fcafd8ad3e"`
[INFO] running `"docker" "rm" "-f" "3c6c9eda0aec37a22d113f9432686f6b63c487bcee59719a074cd0fcafd8ad3e"`
[INFO] [stdout] 3c6c9eda0aec37a22d113f9432686f6b63c487bcee59719a074cd0fcafd8ad3e