Dec 19 21:57:26.494 INFO checking SamYaple/waterrower-rs against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 21:57:26.494 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-4/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/SamYaple/waterrower-rs:/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 21:57:26.967 INFO [stdout] 0e3b279fd1299041a937b6270a2417db2b18f687e712840b5ddb1249889804b9
Dec 19 21:57:26.976 INFO running `"docker" "start" "-a" "0e3b279fd1299041a937b6270a2417db2b18f687e712840b5ddb1249889804b9"`
Dec 19 21:57:28.284 INFO [stderr]     Checking ioctl-rs v0.1.5
Dec 19 21:57:28.289 INFO [stderr]     Checking termios v0.2.2
Dec 19 21:57:28.296 INFO [stderr]     Checking nix v0.7.0
Dec 19 21:57:28.821 INFO [stderr]     Checking serial v0.3.4
Dec 19 21:57:31.776 INFO [stderr]     Checking waterrower v0.1.0 (/opt/crater/workdir)
Dec 19 21:57:32.029 INFO [stderr] warning: unused import: `std::str`
Dec 19 21:57:32.029 INFO [stderr]   --> src/main.rs:11:5
Dec 19 21:57:32.029 INFO [stderr]    |
Dec 19 21:57:32.029 INFO [stderr] 11 | use std::str;
Dec 19 21:57:32.029 INFO [stderr]    |     ^^^^^^^^
Dec 19 21:57:32.029 INFO [stderr]    |
Dec 19 21:57:32.029 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 19 21:57:32.029 INFO [stderr] 
Dec 19 21:57:32.080 INFO [stderr] warning: unused variable: `serialtx`
Dec 19 21:57:32.080 INFO [stderr]   --> src/main.rs:33:10
Dec 19 21:57:32.080 INFO [stderr]    |
Dec 19 21:57:32.080 INFO [stderr] 33 |     let (serialtx, serialrx) = mpsc::channel();
Dec 19 21:57:32.080 INFO [stderr]    |          ^^^^^^^^ help: consider using `_serialtx` instead
Dec 19 21:57:32.080 INFO [stderr]    |
Dec 19 21:57:32.080 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 21:57:32.080 INFO [stderr] 
Dec 19 21:57:32.104 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 21:57:32.104 INFO [stderr]   --> src/main.rs:27:14
Dec 19 21:57:32.104 INFO [stderr]    |
Dec 19 21:57:32.104 INFO [stderr] 27 |     unsafe { signal::sigaction(signal::SIGINT, &sig_action); }
Dec 19 21:57:32.104 INFO [stderr]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:57:32.104 INFO [stderr]    |
Dec 19 21:57:32.104 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 21:57:32.104 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 21:57:32.104 INFO [stderr] 
Dec 19 21:57:32.104 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 21:57:32.104 INFO [stderr]   --> src/main.rs:28:14
Dec 19 21:57:32.104 INFO [stderr]    |
Dec 19 21:57:32.104 INFO [stderr] 28 |     unsafe { signal::sigaction(signal::SIGTERM, &sig_action); }
Dec 19 21:57:32.104 INFO [stderr]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:57:32.104 INFO [stderr]    |
Dec 19 21:57:32.104 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 21:57:32.104 INFO [stderr] 
Dec 19 21:57:32.128 INFO [stderr] warning: unused import: `std::str`
Dec 19 21:57:32.128 INFO [stderr]   --> src/main.rs:11:5
Dec 19 21:57:32.128 INFO [stderr]    |
Dec 19 21:57:32.128 INFO [stderr] 11 | use std::str;
Dec 19 21:57:32.128 INFO [stderr]    |     ^^^^^^^^
Dec 19 21:57:32.128 INFO [stderr]    |
Dec 19 21:57:32.128 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 19 21:57:32.128 INFO [stderr] 
Dec 19 21:57:32.179 INFO [stderr] warning: unused variable: `serialtx`
Dec 19 21:57:32.179 INFO [stderr]   --> src/main.rs:33:10
Dec 19 21:57:32.179 INFO [stderr]    |
Dec 19 21:57:32.179 INFO [stderr] 33 |     let (serialtx, serialrx) = mpsc::channel();
Dec 19 21:57:32.179 INFO [stderr]    |          ^^^^^^^^ help: consider using `_serialtx` instead
Dec 19 21:57:32.179 INFO [stderr]    |
Dec 19 21:57:32.179 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 21:57:32.179 INFO [stderr] 
Dec 19 21:57:32.212 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 21:57:32.212 INFO [stderr]   --> src/main.rs:27:14
Dec 19 21:57:32.212 INFO [stderr]    |
Dec 19 21:57:32.212 INFO [stderr] 27 |     unsafe { signal::sigaction(signal::SIGINT, &sig_action); }
Dec 19 21:57:32.212 INFO [stderr]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:57:32.212 INFO [stderr]    |
Dec 19 21:57:32.212 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 21:57:32.212 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 21:57:32.212 INFO [stderr] 
Dec 19 21:57:32.212 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 21:57:32.212 INFO [stderr]   --> src/main.rs:28:14
Dec 19 21:57:32.212 INFO [stderr]    |
Dec 19 21:57:32.212 INFO [stderr] 28 |     unsafe { signal::sigaction(signal::SIGTERM, &sig_action); }
Dec 19 21:57:32.212 INFO [stderr]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:57:32.212 INFO [stderr]    |
Dec 19 21:57:32.212 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 21:57:32.212 INFO [stderr] 
Dec 19 21:57:32.264 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.04s
Dec 19 21:57:32.583 INFO running `"docker" "inspect" "0e3b279fd1299041a937b6270a2417db2b18f687e712840b5ddb1249889804b9"`
Dec 19 21:57:32.678 INFO running `"docker" "rm" "-f" "0e3b279fd1299041a937b6270a2417db2b18f687e712840b5ddb1249889804b9"`
Dec 19 21:57:32.809 INFO [stdout] 0e3b279fd1299041a937b6270a2417db2b18f687e712840b5ddb1249889804b9