Dec 18 09:24:22.168 INFO checking waterrower-0.1.0 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 09:24:22.169 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-0/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/reg/waterrower/0.1.0:/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 18 09:24:22.405 INFO [stdout] a1515236791e422d83d93999394b2d21ad823c8666f496fa413fab9888d68bb8
Dec 18 09:24:22.409 INFO running `"docker" "start" "-a" "a1515236791e422d83d93999394b2d21ad823c8666f496fa413fab9888d68bb8"`
Dec 18 09:24:23.220 INFO [stderr]     Checking termios v0.2.2
Dec 18 09:24:23.220 INFO [stderr]     Checking ioctl-rs v0.1.6
Dec 18 09:24:23.779 INFO [stderr]     Checking serial v0.3.4
Dec 18 09:24:24.273 INFO [stderr]     Checking waterrower v0.1.0 (/opt/crater/workdir)
Dec 18 09:24:24.728 INFO [stderr] warning: unused import: `std::str`
Dec 18 09:24:24.729 INFO [stderr]   --> src/main.rs:11:5
Dec 18 09:24:24.729 INFO [stderr]    |
Dec 18 09:24:24.729 INFO [stderr] 11 | use std::str;
Dec 18 09:24:24.730 INFO [stderr]    |     ^^^^^^^^
Dec 18 09:24:24.730 INFO [stderr]    |
Dec 18 09:24:24.730 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 18 09:24:24.730 INFO [stderr] 
Dec 18 09:24:24.876 INFO [stderr] warning: unused variable: `serialtx`
Dec 18 09:24:24.877 INFO [stderr]   --> src/main.rs:33:10
Dec 18 09:24:24.877 INFO [stderr]    |
Dec 18 09:24:24.877 INFO [stderr] 33 |     let (serialtx, serialrx) = mpsc::channel();
Dec 18 09:24:24.877 INFO [stderr]    |          ^^^^^^^^ help: consider using `_serialtx` instead
Dec 18 09:24:24.878 INFO [stderr]    |
Dec 18 09:24:24.878 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 09:24:24.878 INFO [stderr] 
Dec 18 09:24:24.926 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 09:24:24.926 INFO [stderr]   --> src/main.rs:27:14
Dec 18 09:24:24.926 INFO [stderr]    |
Dec 18 09:24:24.926 INFO [stderr] 27 |     unsafe { signal::sigaction(signal::SIGINT, &sig_action); }
Dec 18 09:24:24.926 INFO [stderr]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 09:24:24.926 INFO [stderr]    |
Dec 18 09:24:24.926 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 09:24:24.926 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 09:24:24.926 INFO [stderr] 
Dec 18 09:24:24.926 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 09:24:24.926 INFO [stderr]   --> src/main.rs:28:14
Dec 18 09:24:24.926 INFO [stderr]    |
Dec 18 09:24:24.926 INFO [stderr] 28 |     unsafe { signal::sigaction(signal::SIGTERM, &sig_action); }
Dec 18 09:24:24.926 INFO [stderr]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 09:24:24.926 INFO [stderr]    |
Dec 18 09:24:24.926 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 09:24:24.926 INFO [stderr] 
Dec 18 09:24:24.956 INFO [stderr] warning: unused import: `std::str`
Dec 18 09:24:24.956 INFO [stderr]   --> src/main.rs:11:5
Dec 18 09:24:24.956 INFO [stderr]    |
Dec 18 09:24:24.956 INFO [stderr] 11 | use std::str;
Dec 18 09:24:24.956 INFO [stderr]    |     ^^^^^^^^
Dec 18 09:24:24.956 INFO [stderr]    |
Dec 18 09:24:24.956 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 18 09:24:24.956 INFO [stderr] 
Dec 18 09:24:25.051 INFO [stderr] warning: unused variable: `serialtx`
Dec 18 09:24:25.051 INFO [stderr]   --> src/main.rs:33:10
Dec 18 09:24:25.051 INFO [stderr]    |
Dec 18 09:24:25.051 INFO [stderr] 33 |     let (serialtx, serialrx) = mpsc::channel();
Dec 18 09:24:25.051 INFO [stderr]    |          ^^^^^^^^ help: consider using `_serialtx` instead
Dec 18 09:24:25.051 INFO [stderr]    |
Dec 18 09:24:25.051 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 09:24:25.051 INFO [stderr] 
Dec 18 09:24:25.120 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 09:24:25.120 INFO [stderr]   --> src/main.rs:27:14
Dec 18 09:24:25.120 INFO [stderr]    |
Dec 18 09:24:25.120 INFO [stderr] 27 |     unsafe { signal::sigaction(signal::SIGINT, &sig_action); }
Dec 18 09:24:25.120 INFO [stderr]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 09:24:25.120 INFO [stderr]    |
Dec 18 09:24:25.121 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 09:24:25.121 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 09:24:25.121 INFO [stderr] 
Dec 18 09:24:25.121 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 09:24:25.121 INFO [stderr]   --> src/main.rs:28:14
Dec 18 09:24:25.121 INFO [stderr]    |
Dec 18 09:24:25.121 INFO [stderr] 28 |     unsafe { signal::sigaction(signal::SIGTERM, &sig_action); }
Dec 18 09:24:25.121 INFO [stderr]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 09:24:25.121 INFO [stderr]    |
Dec 18 09:24:25.121 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 09:24:25.121 INFO [stderr] 
Dec 18 09:24:25.158 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.99s
Dec 18 09:24:26.252 INFO running `"docker" "inspect" "a1515236791e422d83d93999394b2d21ad823c8666f496fa413fab9888d68bb8"`
Dec 18 09:24:26.427 INFO running `"docker" "rm" "-f" "a1515236791e422d83d93999394b2d21ad823c8666f496fa413fab9888d68bb8"`
Dec 18 09:24:26.555 INFO [stdout] a1515236791e422d83d93999394b2d21ad823c8666f496fa413fab9888d68bb8