Dec 19 12:38:43.447 INFO checking mikeyhew/brainfuck against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 12:38:43.447 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-6/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/mikeyhew/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 12:38:43.878 INFO [stdout] eb408e13f4506a0aef7005e35070e64ef929434eb5b6423a8cadbc3876c435c0
Dec 19 12:38:43.880 INFO running `"docker" "start" "-a" "eb408e13f4506a0aef7005e35070e64ef929434eb5b6423a8cadbc3876c435c0"`
Dec 19 12:38:46.272 INFO [stderr]     Checking brainfuck v0.1.0 (/opt/crater/workdir)
Dec 19 12:38:46.476 INFO [stderr] warning: unused import: `std::mem`
Dec 19 12:38:46.476 INFO [stderr]  --> src/main.rs:2:5
Dec 19 12:38:46.476 INFO [stderr]   |
Dec 19 12:38:46.476 INFO [stderr] 2 | use std::mem;
Dec 19 12:38:46.476 INFO [stderr]   |     ^^^^^^^^
Dec 19 12:38:46.476 INFO [stderr]   |
Dec 19 12:38:46.476 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 12:38:46.476 INFO [stderr] 
Dec 19 12:38:46.476 INFO [stderr] warning: unused import: `std::char::from_u32`
Dec 19 12:38:46.476 INFO [stderr]  --> src/main.rs:5:5
Dec 19 12:38:46.476 INFO [stderr]   |
Dec 19 12:38:46.476 INFO [stderr] 5 | use std::char::from_u32;
Dec 19 12:38:46.476 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 19 12:38:46.476 INFO [stderr] 
Dec 19 12:38:46.636 INFO [stderr] warning: unused import: `std::mem`
Dec 19 12:38:46.636 INFO [stderr]  --> src/main.rs:2:5
Dec 19 12:38:46.636 INFO [stderr]   |
Dec 19 12:38:46.636 INFO [stderr] 2 | use std::mem;
Dec 19 12:38:46.636 INFO [stderr]   |     ^^^^^^^^
Dec 19 12:38:46.636 INFO [stderr]   |
Dec 19 12:38:46.636 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 12:38:46.636 INFO [stderr] 
Dec 19 12:38:46.636 INFO [stderr] warning: unused import: `std::char::from_u32`
Dec 19 12:38:46.636 INFO [stderr]  --> src/main.rs:5:5
Dec 19 12:38:46.636 INFO [stderr]   |
Dec 19 12:38:46.636 INFO [stderr] 5 | use std::char::from_u32;
Dec 19 12:38:46.636 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 19 12:38:46.636 INFO [stderr] 
Dec 19 12:38:46.704 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 12:38:46.704 INFO [stderr]    --> src/main.rs:142:21
Dec 19 12:38:46.704 INFO [stderr]     |
Dec 19 12:38:46.704 INFO [stderr] 142 |                     stdout.write(&byte);
Dec 19 12:38:46.704 INFO [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^
Dec 19 12:38:46.704 INFO [stderr]     |
Dec 19 12:38:46.704 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 19 12:38:46.704 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 12:38:46.704 INFO [stderr] 
Dec 19 12:38:46.704 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 12:38:46.704 INFO [stderr]    --> src/main.rs:146:21
Dec 19 12:38:46.704 INFO [stderr]     |
Dec 19 12:38:46.704 INFO [stderr] 146 |                     stdin.read(&mut byte);
Dec 19 12:38:46.704 INFO [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^
Dec 19 12:38:46.704 INFO [stderr]     |
Dec 19 12:38:46.704 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 12:38:46.704 INFO [stderr] 
Dec 19 12:38:46.740 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 12:38:46.740 INFO [stderr]    --> src/main.rs:142:21
Dec 19 12:38:46.740 INFO [stderr]     |
Dec 19 12:38:46.740 INFO [stderr] 142 |                     stdout.write(&byte);
Dec 19 12:38:46.740 INFO [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^
Dec 19 12:38:46.740 INFO [stderr]     |
Dec 19 12:38:46.740 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 19 12:38:46.740 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 12:38:46.740 INFO [stderr] 
Dec 19 12:38:46.740 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 12:38:46.740 INFO [stderr]    --> src/main.rs:146:21
Dec 19 12:38:46.740 INFO [stderr]     |
Dec 19 12:38:46.740 INFO [stderr] 146 |                     stdin.read(&mut byte);
Dec 19 12:38:46.740 INFO [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^
Dec 19 12:38:46.740 INFO [stderr]     |
Dec 19 12:38:46.740 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 12:38:46.740 INFO [stderr] 
Dec 19 12:38:46.768 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.55s
Dec 19 12:38:47.294 INFO running `"docker" "inspect" "eb408e13f4506a0aef7005e35070e64ef929434eb5b6423a8cadbc3876c435c0"`
Dec 19 12:38:47.492 INFO running `"docker" "rm" "-f" "eb408e13f4506a0aef7005e35070e64ef929434eb5b6423a8cadbc3876c435c0"`
Dec 19 12:38:47.896 INFO [stdout] eb408e13f4506a0aef7005e35070e64ef929434eb5b6423a8cadbc3876c435c0