Dec 19 16:07:59.230 INFO checking henryroyal/cli-gcd against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 16:07:59.231 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-0/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 16:07:59.625 INFO [stdout] 0f0afbf5bd2a37a9bbc466517f493d4851195c9392483284a4d44c78e4939d88
Dec 19 16:07:59.634 INFO running `"docker" "start" "-a" "0f0afbf5bd2a37a9bbc466517f493d4851195c9392483284a4d44c78e4939d88"`
Dec 19 16:08:00.884 INFO [stderr]     Checking gcd v0.1.0 (/opt/crater/workdir)
Dec 19 16:08:01.148 INFO [stderr] warning: variable does not need to be mutable
Dec 19 16:08:01.148 INFO [stderr]   --> src/main.rs:37:9
Dec 19 16:08:01.148 INFO [stderr]    |
Dec 19 16:08:01.148 INFO [stderr] 37 |     let mut split = buffer.split_whitespace();
Dec 19 16:08:01.148 INFO [stderr]    |         ----^^^^^
Dec 19 16:08:01.148 INFO [stderr]    |         |
Dec 19 16:08:01.148 INFO [stderr]    |         help: remove this `mut`
Dec 19 16:08:01.148 INFO [stderr]    |
Dec 19 16:08:01.148 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 16:08:01.148 INFO [stderr] 
Dec 19 16:08:01.152 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 16:08:01.152 INFO [stderr]   --> src/main.rs:34:5
Dec 19 16:08:01.152 INFO [stderr]    |
Dec 19 16:08:01.152 INFO [stderr] 34 |     stdin.read_line(&mut buffer);
Dec 19 16:08:01.152 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:08:01.152 INFO [stderr]    |
Dec 19 16:08:01.152 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 16:08:01.152 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 16:08:01.152 INFO [stderr] 
Dec 19 16:08:01.246 INFO [stderr] warning: variable does not need to be mutable
Dec 19 16:08:01.246 INFO [stderr]   --> src/main.rs:37:9
Dec 19 16:08:01.246 INFO [stderr]    |
Dec 19 16:08:01.246 INFO [stderr] 37 |     let mut split = buffer.split_whitespace();
Dec 19 16:08:01.246 INFO [stderr]    |         ----^^^^^
Dec 19 16:08:01.246 INFO [stderr]    |         |
Dec 19 16:08:01.246 INFO [stderr]    |         help: remove this `mut`
Dec 19 16:08:01.246 INFO [stderr]    |
Dec 19 16:08:01.246 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 16:08:01.246 INFO [stderr] 
Dec 19 16:08:01.246 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 16:08:01.246 INFO [stderr]   --> src/main.rs:34:5
Dec 19 16:08:01.246 INFO [stderr]    |
Dec 19 16:08:01.246 INFO [stderr] 34 |     stdin.read_line(&mut buffer);
Dec 19 16:08:01.246 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:08:01.246 INFO [stderr]    |
Dec 19 16:08:01.246 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 16:08:01.246 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 16:08:01.246 INFO [stderr] 
Dec 19 16:08:01.293 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.42s
Dec 19 16:08:01.952 INFO running `"docker" "inspect" "0f0afbf5bd2a37a9bbc466517f493d4851195c9392483284a4d44c78e4939d88"`
Dec 19 16:08:02.318 INFO running `"docker" "rm" "-f" "0f0afbf5bd2a37a9bbc466517f493d4851195c9392483284a4d44c78e4939d88"`
Dec 19 16:08:02.468 INFO [stdout] 0f0afbf5bd2a37a9bbc466517f493d4851195c9392483284a4d44c78e4939d88