Dec 05 04:28:36.028 INFO checking waterrower-0.1.0 against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 05 04:28:36.028 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-7/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 05 04:28:36.480 INFO [stdout] d99a3977488890b5cfd6f39424b1fddf00350198772c6f880f5c2cf39169cd86
Dec 05 04:28:36.482 INFO running `"docker" "start" "-a" "d99a3977488890b5cfd6f39424b1fddf00350198772c6f880f5c2cf39169cd86"`
Dec 05 04:28:37.609 INFO [stderr] usermod: no changes
Dec 05 04:28:37.673 INFO [stderr]     Checking ioctl-rs v0.1.6
Dec 05 04:28:37.674 INFO [stderr]     Checking termios v0.2.2
Dec 05 04:28:37.674 INFO [stderr]     Checking nix v0.7.0
Dec 05 04:28:38.333 INFO [stderr]     Checking serial v0.3.4
Dec 05 04:28:41.250 INFO [stderr]     Checking waterrower v0.1.0 (/source)
Dec 05 04:28:42.047 INFO [stderr] warning: unused import: `std::str`
Dec 05 04:28:42.047 INFO [stderr]   --> src/main.rs:11:5
Dec 05 04:28:42.047 INFO [stderr]    |
Dec 05 04:28:42.047 INFO [stderr] 11 | use std::str;
Dec 05 04:28:42.047 INFO [stderr]    |     ^^^^^^^^
Dec 05 04:28:42.047 INFO [stderr]    |
Dec 05 04:28:42.047 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 05 04:28:42.047 INFO [stderr] 
Dec 05 04:28:42.103 INFO [stderr] warning: unused variable: `serialtx`
Dec 05 04:28:42.103 INFO [stderr]   --> src/main.rs:33:10
Dec 05 04:28:42.103 INFO [stderr]    |
Dec 05 04:28:42.103 INFO [stderr] 33 |     let (serialtx, serialrx) = mpsc::channel();
Dec 05 04:28:42.103 INFO [stderr]    |          ^^^^^^^^ help: consider using `_serialtx` instead
Dec 05 04:28:42.104 INFO [stderr]    |
Dec 05 04:28:42.104 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 05 04:28:42.104 INFO [stderr] 
Dec 05 04:28:42.148 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 04:28:42.148 INFO [stderr]   --> src/main.rs:27:14
Dec 05 04:28:42.148 INFO [stderr]    |
Dec 05 04:28:42.148 INFO [stderr] 27 |     unsafe { signal::sigaction(signal::SIGINT, &sig_action); }
Dec 05 04:28:42.148 INFO [stderr]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 04:28:42.148 INFO [stderr]    |
Dec 05 04:28:42.148 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 05 04:28:42.148 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 04:28:42.148 INFO [stderr] 
Dec 05 04:28:42.148 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 04:28:42.148 INFO [stderr]   --> src/main.rs:28:14
Dec 05 04:28:42.149 INFO [stderr]    |
Dec 05 04:28:42.149 INFO [stderr] 28 |     unsafe { signal::sigaction(signal::SIGTERM, &sig_action); }
Dec 05 04:28:42.149 INFO [stderr]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 04:28:42.149 INFO [stderr]    |
Dec 05 04:28:42.149 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 04:28:42.149 INFO [stderr] 
Dec 05 04:28:42.423 INFO [stderr] warning: unused import: `std::str`
Dec 05 04:28:42.423 INFO [stderr]   --> src/main.rs:11:5
Dec 05 04:28:42.424 INFO [stderr]    |
Dec 05 04:28:42.424 INFO [stderr] 11 | use std::str;
Dec 05 04:28:42.424 INFO [stderr]    |     ^^^^^^^^
Dec 05 04:28:42.427 INFO [stderr]    |
Dec 05 04:28:42.427 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 05 04:28:42.427 INFO [stderr] 
Dec 05 04:28:42.489 INFO [stderr] warning: unused variable: `serialtx`
Dec 05 04:28:42.489 INFO [stderr]   --> src/main.rs:33:10
Dec 05 04:28:42.489 INFO [stderr]    |
Dec 05 04:28:42.489 INFO [stderr] 33 |     let (serialtx, serialrx) = mpsc::channel();
Dec 05 04:28:42.489 INFO [stderr]    |          ^^^^^^^^ help: consider using `_serialtx` instead
Dec 05 04:28:42.489 INFO [stderr]    |
Dec 05 04:28:42.489 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 05 04:28:42.489 INFO [stderr] 
Dec 05 04:28:42.532 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 04:28:42.532 INFO [stderr]   --> src/main.rs:27:14
Dec 05 04:28:42.532 INFO [stderr]    |
Dec 05 04:28:42.532 INFO [stderr] 27 |     unsafe { signal::sigaction(signal::SIGINT, &sig_action); }
Dec 05 04:28:42.532 INFO [stderr]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 04:28:42.532 INFO [stderr]    |
Dec 05 04:28:42.532 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 05 04:28:42.532 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 04:28:42.532 INFO [stderr] 
Dec 05 04:28:42.532 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 04:28:42.532 INFO [stderr]   --> src/main.rs:28:14
Dec 05 04:28:42.532 INFO [stderr]    |
Dec 05 04:28:42.532 INFO [stderr] 28 |     unsafe { signal::sigaction(signal::SIGTERM, &sig_action); }
Dec 05 04:28:42.532 INFO [stderr]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 04:28:42.532 INFO [stderr]    |
Dec 05 04:28:42.532 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 04:28:42.532 INFO [stderr] 
Dec 05 04:28:42.563 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.92s
Dec 05 04:28:42.566 INFO [stderr] su: No module specific data is present
Dec 05 04:28:43.467 INFO running `"docker" "inspect" "d99a3977488890b5cfd6f39424b1fddf00350198772c6f880f5c2cf39169cd86"`
Dec 05 04:28:43.743 INFO running `"docker" "rm" "-f" "d99a3977488890b5cfd6f39424b1fddf00350198772c6f880f5c2cf39169cd86"`
Dec 05 04:28:44.082 INFO [stdout] d99a3977488890b5cfd6f39424b1fddf00350198772c6f880f5c2cf39169cd86