Nov 28 15:39:26.331 INFO checking waterrower-0.1.0 against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 28 15:39:26.332 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-2/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/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 +db42d4dad33013eba11ef37342ad9f614e5652b8-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"`
Nov 28 15:39:26.728 INFO [stdout] f79c4064b2f052533482af603c61f81346894dbe6088c84c8edc064688affc2b
Nov 28 15:39:26.728 INFO running `"docker" "start" "-a" "f79c4064b2f052533482af603c61f81346894dbe6088c84c8edc064688affc2b"`
Nov 28 15:39:28.020 INFO [stderr] usermod: no changes
Nov 28 15:39:28.133 INFO [stderr]     Checking ioctl-rs v0.1.6
Nov 28 15:39:28.133 INFO [stderr]     Checking termios v0.2.2
Nov 28 15:39:28.138 INFO [stderr]     Checking nix v0.7.0
Nov 28 15:39:29.024 INFO [stderr]     Checking serial v0.3.4
Nov 28 15:39:32.172 INFO [stderr]     Checking waterrower v0.1.0 (/source)
Nov 28 15:39:33.412 INFO [stderr] warning: unused import: `std::str`
Nov 28 15:39:33.412 INFO [stderr]   --> src/main.rs:11:5
Nov 28 15:39:33.412 INFO [stderr]    |
Nov 28 15:39:33.412 INFO [stderr] 11 | use std::str;
Nov 28 15:39:33.412 INFO [stderr]    |     ^^^^^^^^
Nov 28 15:39:33.412 INFO [stderr]    |
Nov 28 15:39:33.412 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Nov 28 15:39:33.412 INFO [stderr] 
Nov 28 15:39:33.496 INFO [stderr] warning: unused variable: `serialtx`
Nov 28 15:39:33.496 INFO [stderr]   --> src/main.rs:33:10
Nov 28 15:39:33.496 INFO [stderr]    |
Nov 28 15:39:33.496 INFO [stderr] 33 |     let (serialtx, serialrx) = mpsc::channel();
Nov 28 15:39:33.496 INFO [stderr]    |          ^^^^^^^^ help: consider using `_serialtx` instead
Nov 28 15:39:33.497 INFO [stderr]    |
Nov 28 15:39:33.497 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 28 15:39:33.497 INFO [stderr] 
Nov 28 15:39:33.535 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 15:39:33.535 INFO [stderr]   --> src/main.rs:27:14
Nov 28 15:39:33.535 INFO [stderr]    |
Nov 28 15:39:33.535 INFO [stderr] 27 |     unsafe { signal::sigaction(signal::SIGINT, &sig_action); }
Nov 28 15:39:33.535 INFO [stderr]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 15:39:33.535 INFO [stderr]    |
Nov 28 15:39:33.535 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 28 15:39:33.535 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 15:39:33.535 INFO [stderr] 
Nov 28 15:39:33.535 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 15:39:33.535 INFO [stderr]   --> src/main.rs:28:14
Nov 28 15:39:33.535 INFO [stderr]    |
Nov 28 15:39:33.535 INFO [stderr] 28 |     unsafe { signal::sigaction(signal::SIGTERM, &sig_action); }
Nov 28 15:39:33.535 INFO [stderr]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 15:39:33.535 INFO [stderr]    |
Nov 28 15:39:33.535 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 15:39:33.535 INFO [stderr] 
Nov 28 15:39:33.597 INFO [stderr] warning: unused import: `std::str`
Nov 28 15:39:33.597 INFO [stderr]   --> src/main.rs:11:5
Nov 28 15:39:33.597 INFO [stderr]    |
Nov 28 15:39:33.597 INFO [stderr] 11 | use std::str;
Nov 28 15:39:33.597 INFO [stderr]    |     ^^^^^^^^
Nov 28 15:39:33.597 INFO [stderr]    |
Nov 28 15:39:33.597 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Nov 28 15:39:33.597 INFO [stderr] 
Nov 28 15:39:33.670 INFO [stderr] warning: unused variable: `serialtx`
Nov 28 15:39:33.670 INFO [stderr]   --> src/main.rs:33:10
Nov 28 15:39:33.671 INFO [stderr]    |
Nov 28 15:39:33.671 INFO [stderr] 33 |     let (serialtx, serialrx) = mpsc::channel();
Nov 28 15:39:33.671 INFO [stderr]    |          ^^^^^^^^ help: consider using `_serialtx` instead
Nov 28 15:39:33.672 INFO [stderr]    |
Nov 28 15:39:33.672 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 28 15:39:33.672 INFO [stderr] 
Nov 28 15:39:33.710 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 15:39:33.710 INFO [stderr]   --> src/main.rs:27:14
Nov 28 15:39:33.710 INFO [stderr]    |
Nov 28 15:39:33.711 INFO [stderr] 27 |     unsafe { signal::sigaction(signal::SIGINT, &sig_action); }
Nov 28 15:39:33.711 INFO [stderr]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 15:39:33.711 INFO [stderr]    |
Nov 28 15:39:33.712 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 28 15:39:33.712 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 15:39:33.712 INFO [stderr] 
Nov 28 15:39:33.712 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 15:39:33.713 INFO [stderr]   --> src/main.rs:28:14
Nov 28 15:39:33.713 INFO [stderr]    |
Nov 28 15:39:33.713 INFO [stderr] 28 |     unsafe { signal::sigaction(signal::SIGTERM, &sig_action); }
Nov 28 15:39:33.714 INFO [stderr]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 15:39:33.714 INFO [stderr]    |
Nov 28 15:39:33.714 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 15:39:33.714 INFO [stderr] 
Nov 28 15:39:33.741 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.68s
Nov 28 15:39:33.744 INFO [stderr] su: No module specific data is present
Nov 28 15:39:34.912 INFO running `"docker" "inspect" "f79c4064b2f052533482af603c61f81346894dbe6088c84c8edc064688affc2b"`
Nov 28 15:39:35.222 INFO running `"docker" "rm" "-f" "f79c4064b2f052533482af603c61f81346894dbe6088c84c8edc064688affc2b"`
Nov 28 15:39:35.564 INFO [stdout] f79c4064b2f052533482af603c61f81346894dbe6088c84c8edc064688affc2b