Dec 19 16:07:58.217 INFO checking henryroyal/cli-gcd against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 16:07:58.217 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-5/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/henryroyal/cli-gcd:/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 16:07:58.589 INFO [stdout] dbbadb89f50a9424781e60d87936183c7343c78de56bfa9bd79259fbfe57f642
Dec 19 16:07:58.591 INFO running `"docker" "start" "-a" "dbbadb89f50a9424781e60d87936183c7343c78de56bfa9bd79259fbfe57f642"`
Dec 19 16:08:00.025 INFO [stderr]     Checking gcd v0.1.0 (/opt/crater/workdir)
Dec 19 16:08:00.344 INFO [stderr] warning: variable does not need to be mutable
Dec 19 16:08:00.344 INFO [stderr]   --> src/main.rs:37:9
Dec 19 16:08:00.344 INFO [stderr]    |
Dec 19 16:08:00.344 INFO [stderr] 37 |     let mut split = buffer.split_whitespace();
Dec 19 16:08:00.344 INFO [stderr]    |         ----^^^^^
Dec 19 16:08:00.344 INFO [stderr]    |         |
Dec 19 16:08:00.344 INFO [stderr]    |         help: remove this `mut`
Dec 19 16:08:00.344 INFO [stderr]    |
Dec 19 16:08:00.344 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 16:08:00.344 INFO [stderr] 
Dec 19 16:08:00.344 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 16:08:00.344 INFO [stderr]   --> src/main.rs:34:5
Dec 19 16:08:00.344 INFO [stderr]    |
Dec 19 16:08:00.344 INFO [stderr] 34 |     stdin.read_line(&mut buffer);
Dec 19 16:08:00.344 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:08:00.344 INFO [stderr]    |
Dec 19 16:08:00.344 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 16:08:00.344 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 16:08:00.344 INFO [stderr] 
Dec 19 16:08:00.360 INFO [stderr] warning: variable does not need to be mutable
Dec 19 16:08:00.360 INFO [stderr]   --> src/main.rs:37:9
Dec 19 16:08:00.360 INFO [stderr]    |
Dec 19 16:08:00.360 INFO [stderr] 37 |     let mut split = buffer.split_whitespace();
Dec 19 16:08:00.360 INFO [stderr]    |         ----^^^^^
Dec 19 16:08:00.360 INFO [stderr]    |         |
Dec 19 16:08:00.360 INFO [stderr]    |         help: remove this `mut`
Dec 19 16:08:00.360 INFO [stderr]    |
Dec 19 16:08:00.360 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 16:08:00.360 INFO [stderr] 
Dec 19 16:08:00.360 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 16:08:00.360 INFO [stderr]   --> src/main.rs:34:5
Dec 19 16:08:00.360 INFO [stderr]    |
Dec 19 16:08:00.360 INFO [stderr] 34 |     stdin.read_line(&mut buffer);
Dec 19 16:08:00.361 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:08:00.361 INFO [stderr]    |
Dec 19 16:08:00.361 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 16:08:00.361 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 16:08:00.361 INFO [stderr] 
Dec 19 16:08:00.422 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.40s
Dec 19 16:08:00.982 INFO running `"docker" "inspect" "dbbadb89f50a9424781e60d87936183c7343c78de56bfa9bd79259fbfe57f642"`
Dec 19 16:08:01.152 INFO running `"docker" "rm" "-f" "dbbadb89f50a9424781e60d87936183c7343c78de56bfa9bd79259fbfe57f642"`
Dec 19 16:08:01.371 INFO [stdout] dbbadb89f50a9424781e60d87936183c7343c78de56bfa9bd79259fbfe57f642