Dec 04 19:51:39.716 INFO checking dgryski/rust-bf against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 04 19:51:39.716 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-5/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/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 19:51:40.147 INFO [stdout] 74af222adc6351cd3dd2c0a993ab039654bdb1644d427fcf0a92051d5562f948
Dec 04 19:51:40.149 INFO running `"docker" "start" "-a" "74af222adc6351cd3dd2c0a993ab039654bdb1644d427fcf0a92051d5562f948"`
Dec 04 19:51:42.437 INFO [stderr] usermod: no changes
Dec 04 19:51:42.503 INFO [stderr]     Checking bf v0.1.0 (/source)
Dec 04 19:51:43.336 INFO [stderr] warning: unused variable: `arg1`
Dec 04 19:51:43.336 INFO [stderr]   --> src/main.rs:17:13
Dec 04 19:51:43.336 INFO [stderr]    |
Dec 04 19:51:43.336 INFO [stderr] 17 |     let ref arg1 = args[1];
Dec 04 19:51:43.336 INFO [stderr]    |             ^^^^ help: consider using `_arg1` instead
Dec 04 19:51:43.336 INFO [stderr]    |
Dec 04 19:51:43.336 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 19:51:43.336 INFO [stderr] 
Dec 04 19:51:43.359 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 19:51:43.359 INFO [stderr]   --> src/main.rs:31:9
Dec 04 19:51:43.359 INFO [stderr]    |
Dec 04 19:51:43.359 INFO [stderr] 31 |         io::stderr().write(err.as_bytes());
Dec 04 19:51:43.359 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 19:51:43.359 INFO [stderr]    |
Dec 04 19:51:43.359 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 19:51:43.359 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 19:51:43.359 INFO [stderr] 
Dec 04 19:51:43.420 INFO [stderr] warning: unused variable: `arg1`
Dec 04 19:51:43.421 INFO [stderr]   --> src/main.rs:17:13
Dec 04 19:51:43.421 INFO [stderr]    |
Dec 04 19:51:43.421 INFO [stderr] 17 |     let ref arg1 = args[1];
Dec 04 19:51:43.421 INFO [stderr]    |             ^^^^ help: consider using `_arg1` instead
Dec 04 19:51:43.421 INFO [stderr]    |
Dec 04 19:51:43.422 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 19:51:43.422 INFO [stderr] 
Dec 04 19:51:43.475 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 19:51:43.476 INFO [stderr]   --> src/main.rs:31:9
Dec 04 19:51:43.476 INFO [stderr]    |
Dec 04 19:51:43.476 INFO [stderr] 31 |         io::stderr().write(err.as_bytes());
Dec 04 19:51:43.477 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 19:51:43.477 INFO [stderr]    |
Dec 04 19:51:43.477 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 19:51:43.478 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 19:51:43.478 INFO [stderr] 
Dec 04 19:51:43.516 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.05s
Dec 04 19:51:43.518 INFO [stderr] su: No module specific data is present
Dec 04 19:51:44.629 INFO running `"docker" "inspect" "74af222adc6351cd3dd2c0a993ab039654bdb1644d427fcf0a92051d5562f948"`
Dec 04 19:51:44.925 INFO running `"docker" "rm" "-f" "74af222adc6351cd3dd2c0a993ab039654bdb1644d427fcf0a92051d5562f948"`
Dec 04 19:51:45.331 INFO [stdout] 74af222adc6351cd3dd2c0a993ab039654bdb1644d427fcf0a92051d5562f948