Dec 04 14:05:37.012 INFO checking mikeyhew/brainfuck against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 04 14:05:37.012 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-4/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +1df97983eb2057dc6a8f7eb364e263b51ae23230-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 04 14:05:37.708 INFO [stdout] 8464c08ca8d532200f4b19de7e2b36170372a691310eeeb040d2c97bc83d7368
Dec 04 14:05:37.710 INFO running `"docker" "start" "-a" "8464c08ca8d532200f4b19de7e2b36170372a691310eeeb040d2c97bc83d7368"`
Dec 04 14:05:39.779 INFO [stderr] usermod: no changes
Dec 04 14:05:39.847 INFO [stderr]     Checking brainfuck v0.1.0 (/source)
Dec 04 14:05:40.227 INFO [stderr] warning: unused import: `std::mem`
Dec 04 14:05:40.227 INFO [stderr]  --> src/main.rs:2:5
Dec 04 14:05:40.227 INFO [stderr]   |
Dec 04 14:05:40.227 INFO [stderr] 2 | use std::mem;
Dec 04 14:05:40.227 INFO [stderr]   |     ^^^^^^^^
Dec 04 14:05:40.239 INFO [stderr]   |
Dec 04 14:05:40.239 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 14:05:40.240 INFO [stderr] 
Dec 04 14:05:40.240 INFO [stderr] warning: unused import: `std::char::from_u32`
Dec 04 14:05:40.240 INFO [stderr]  --> src/main.rs:5:5
Dec 04 14:05:40.241 INFO [stderr]   |
Dec 04 14:05:40.241 INFO [stderr] 5 | use std::char::from_u32;
Dec 04 14:05:40.241 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 04 14:05:40.242 INFO [stderr] 
Dec 04 14:05:40.351 INFO [stderr] warning: unused import: `std::mem`
Dec 04 14:05:40.351 INFO [stderr]  --> src/main.rs:2:5
Dec 04 14:05:40.351 INFO [stderr]   |
Dec 04 14:05:40.351 INFO [stderr] 2 | use std::mem;
Dec 04 14:05:40.351 INFO [stderr]   |     ^^^^^^^^
Dec 04 14:05:40.351 INFO [stderr]   |
Dec 04 14:05:40.351 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 14:05:40.351 INFO [stderr] 
Dec 04 14:05:40.351 INFO [stderr] warning: unused import: `std::char::from_u32`
Dec 04 14:05:40.351 INFO [stderr]  --> src/main.rs:5:5
Dec 04 14:05:40.351 INFO [stderr]   |
Dec 04 14:05:40.351 INFO [stderr] 5 | use std::char::from_u32;
Dec 04 14:05:40.351 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 04 14:05:40.351 INFO [stderr] 
Dec 04 14:05:40.410 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 14:05:40.411 INFO [stderr]    --> src/main.rs:142:21
Dec 04 14:05:40.411 INFO [stderr]     |
Dec 04 14:05:40.411 INFO [stderr] 142 |                     stdout.write(&byte);
Dec 04 14:05:40.411 INFO [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^
Dec 04 14:05:40.412 INFO [stderr]     |
Dec 04 14:05:40.412 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 04 14:05:40.413 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 14:05:40.413 INFO [stderr] 
Dec 04 14:05:40.413 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 14:05:40.414 INFO [stderr]    --> src/main.rs:146:21
Dec 04 14:05:40.414 INFO [stderr]     |
Dec 04 14:05:40.414 INFO [stderr] 146 |                     stdin.read(&mut byte);
Dec 04 14:05:40.415 INFO [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^
Dec 04 14:05:40.415 INFO [stderr]     |
Dec 04 14:05:40.415 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 14:05:40.415 INFO [stderr] 
Dec 04 14:05:40.498 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 14:05:40.498 INFO [stderr]    --> src/main.rs:142:21
Dec 04 14:05:40.498 INFO [stderr]     |
Dec 04 14:05:40.498 INFO [stderr] 142 |                     stdout.write(&byte);
Dec 04 14:05:40.498 INFO [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^
Dec 04 14:05:40.498 INFO [stderr]     |
Dec 04 14:05:40.498 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 04 14:05:40.498 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 14:05:40.498 INFO [stderr] 
Dec 04 14:05:40.498 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 14:05:40.499 INFO [stderr]    --> src/main.rs:146:21
Dec 04 14:05:40.499 INFO [stderr]     |
Dec 04 14:05:40.499 INFO [stderr] 146 |                     stdin.read(&mut byte);
Dec 04 14:05:40.499 INFO [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^
Dec 04 14:05:40.499 INFO [stderr]     |
Dec 04 14:05:40.499 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 14:05:40.499 INFO [stderr] 
Dec 04 14:05:40.527 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.70s
Dec 04 14:05:40.529 INFO [stderr] su: No module specific data is present
Dec 04 14:05:41.511 INFO running `"docker" "inspect" "8464c08ca8d532200f4b19de7e2b36170372a691310eeeb040d2c97bc83d7368"`
Dec 04 14:05:41.787 INFO running `"docker" "rm" "-f" "8464c08ca8d532200f4b19de7e2b36170372a691310eeeb040d2c97bc83d7368"`
Dec 04 14:05:42.119 INFO [stdout] 8464c08ca8d532200f4b19de7e2b36170372a691310eeeb040d2c97bc83d7368