Dec 19 19:36:04.433 INFO checking bramvdbogaerde/brainfuck-rs against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 19:36:04.433 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/bramvdbogaerde/brainfuck-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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 19:36:04.671 INFO [stdout] e29c608a39d8b72a9c350295e033d3e62f2b11ed023fb86b10a19e91e67fd0f6
Dec 19 19:36:04.674 INFO running `"docker" "start" "-a" "e29c608a39d8b72a9c350295e033d3e62f2b11ed023fb86b10a19e91e67fd0f6"`
Dec 19 19:36:05.223 INFO [stderr]     Checking brainfuck-rs v0.1.0 (/opt/crater/workdir)
Dec 19 19:36:05.441 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 19:36:05.441 INFO [stderr]   --> src/main.rs:10:5
Dec 19 19:36:05.441 INFO [stderr]    |
Dec 19 19:36:05.441 INFO [stderr] 10 |     f.read_to_string(&mut buff);
Dec 19 19:36:05.441 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:36:05.441 INFO [stderr]    |
Dec 19 19:36:05.441 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 19:36:05.441 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 19:36:05.441 INFO [stderr] 
Dec 19 19:36:05.492 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 19:36:05.492 INFO [stderr]   --> src/main.rs:10:5
Dec 19 19:36:05.492 INFO [stderr]    |
Dec 19 19:36:05.492 INFO [stderr] 10 |     f.read_to_string(&mut buff);
Dec 19 19:36:05.492 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:36:05.492 INFO [stderr]    |
Dec 19 19:36:05.492 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 19:36:05.492 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 19:36:05.492 INFO [stderr] 
Dec 19 19:36:05.520 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.30s
Dec 19 19:36:05.958 INFO running `"docker" "inspect" "e29c608a39d8b72a9c350295e033d3e62f2b11ed023fb86b10a19e91e67fd0f6"`
Dec 19 19:36:06.138 INFO running `"docker" "rm" "-f" "e29c608a39d8b72a9c350295e033d3e62f2b11ed023fb86b10a19e91e67fd0f6"`
Dec 19 19:36:06.228 INFO [stdout] e29c608a39d8b72a9c350295e033d3e62f2b11ed023fb86b10a19e91e67fd0f6