Dec 17 21:19:15.857 INFO checking knoby/cybercon against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 21:19:15.857 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-5/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/knoby/cybercon:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 21:19:16.114 INFO [stdout] ccc0af6c4763c2c2af891388adace83d028619ced5639973a90fdeed71ddddfe
Dec 17 21:19:16.117 INFO running `"docker" "start" "-a" "ccc0af6c4763c2c2af891388adace83d028619ced5639973a90fdeed71ddddfe"`
Dec 17 21:19:16.594 INFO [stderr]     Checking serial-core v0.4.0
Dec 17 21:19:16.594 INFO [stderr]     Checking ioctl-rs v0.1.6
Dec 17 21:19:16.854 INFO [stderr]     Checking serial-unix v0.4.0
Dec 17 21:19:17.102 INFO [stderr]     Checking serial v0.4.0
Dec 17 21:19:17.245 INFO [stderr]     Checking cybercon v0.1.0 (/opt/crater/workdir)
Dec 17 21:19:17.518 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 21:19:17.518 INFO [stderr]  --> src/main.rs:6:2
Dec 17 21:19:17.518 INFO [stderr]   |
Dec 17 21:19:17.518 INFO [stderr] 6 |     cm_com::connect("/dev/ttyUSB0".to_string());
Dec 17 21:19:17.518 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 21:19:17.518 INFO [stderr]   |
Dec 17 21:19:17.518 INFO [stderr]   = note: #[warn(unused_must_use)] on by default
Dec 17 21:19:17.518 INFO [stderr]   = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 21:19:17.518 INFO [stderr] 
Dec 17 21:19:17.633 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 21:19:17.633 INFO [stderr]  --> src/main.rs:6:2
Dec 17 21:19:17.633 INFO [stderr]   |
Dec 17 21:19:17.633 INFO [stderr] 6 |     cm_com::connect("/dev/ttyUSB0".to_string());
Dec 17 21:19:17.633 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 21:19:17.633 INFO [stderr]   |
Dec 17 21:19:17.633 INFO [stderr]   = note: #[warn(unused_must_use)] on by default
Dec 17 21:19:17.633 INFO [stderr]   = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 21:19:17.633 INFO [stderr] 
Dec 17 21:19:17.651 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.08s
Dec 17 21:19:18.079 INFO running `"docker" "inspect" "ccc0af6c4763c2c2af891388adace83d028619ced5639973a90fdeed71ddddfe"`
Dec 17 21:19:18.202 INFO running `"docker" "rm" "-f" "ccc0af6c4763c2c2af891388adace83d028619ced5639973a90fdeed71ddddfe"`
Dec 17 21:19:18.411 INFO [stdout] ccc0af6c4763c2c2af891388adace83d028619ced5639973a90fdeed71ddddfe