Dec 19 07:28:03.361 INFO checking teaearlgraycold/BrainFuck against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 07:28:03.362 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-2/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/teaearlgraycold/BrainFuck:/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 07:28:03.868 INFO [stdout] c9d6312e5cc2f3a7463ca316969d5d325247bbff66923d52ccaa59dffe05e7e3
Dec 19 07:28:03.874 INFO running `"docker" "start" "-a" "c9d6312e5cc2f3a7463ca316969d5d325247bbff66923d52ccaa59dffe05e7e3"`
Dec 19 07:28:05.829 INFO [stderr]     Checking fucker v0.1.0 (/opt/crater/workdir)
Dec 19 07:28:06.208 INFO [stderr] warning: unused variable: `file_size`
Dec 19 07:28:06.208 INFO [stderr]   --> src/main.rs:23:9
Dec 19 07:28:06.208 INFO [stderr]    |
Dec 19 07:28:06.208 INFO [stderr] 23 |     let file_size = file.read_to_string(&mut buffer)?;
Dec 19 07:28:06.208 INFO [stderr]    |         ^^^^^^^^^ help: consider using `_file_size` instead
Dec 19 07:28:06.208 INFO [stderr]    |
Dec 19 07:28:06.208 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 07:28:06.208 INFO [stderr] 
Dec 19 07:28:06.244 INFO [stderr] warning: unused variable: `file_size`
Dec 19 07:28:06.244 INFO [stderr]   --> src/main.rs:23:9
Dec 19 07:28:06.244 INFO [stderr]    |
Dec 19 07:28:06.244 INFO [stderr] 23 |     let file_size = file.read_to_string(&mut buffer)?;
Dec 19 07:28:06.244 INFO [stderr]    |         ^^^^^^^^^ help: consider using `_file_size` instead
Dec 19 07:28:06.244 INFO [stderr]    |
Dec 19 07:28:06.244 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 07:28:06.244 INFO [stderr] 
Dec 19 07:28:06.280 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 07:28:06.280 INFO [stderr]    --> src/fucker.rs:124:21
Dec 19 07:28:06.280 INFO [stderr]     |
Dec 19 07:28:06.280 INFO [stderr] 124 |                     std::io::stdout().flush();
Dec 19 07:28:06.280 INFO [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 07:28:06.280 INFO [stderr]     |
Dec 19 07:28:06.280 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 19 07:28:06.280 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 07:28:06.280 INFO [stderr] 
Dec 19 07:28:06.304 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 07:28:06.304 INFO [stderr]    --> src/fucker.rs:124:21
Dec 19 07:28:06.304 INFO [stderr]     |
Dec 19 07:28:06.304 INFO [stderr] 124 |                     std::io::stdout().flush();
Dec 19 07:28:06.304 INFO [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 07:28:06.304 INFO [stderr]     |
Dec 19 07:28:06.305 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 19 07:28:06.305 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 07:28:06.305 INFO [stderr] 
Dec 19 07:28:06.369 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
Dec 19 07:28:07.570 INFO running `"docker" "inspect" "c9d6312e5cc2f3a7463ca316969d5d325247bbff66923d52ccaa59dffe05e7e3"`
Dec 19 07:28:07.954 INFO running `"docker" "rm" "-f" "c9d6312e5cc2f3a7463ca316969d5d325247bbff66923d52ccaa59dffe05e7e3"`
Dec 19 07:28:08.400 INFO [stdout] c9d6312e5cc2f3a7463ca316969d5d325247bbff66923d52ccaa59dffe05e7e3