Dec 04 19:51:45.418 INFO checking dgryski/rust-bf against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 19:51:45.418 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-5/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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 19:51:45.890 INFO [stdout] 9e27f374de96b908518c49ff7db2519b84471840d277c282d972456c36d923f5
Dec 04 19:51:45.892 INFO running `"docker" "start" "-a" "9e27f374de96b908518c49ff7db2519b84471840d277c282d972456c36d923f5"`
Dec 04 19:51:47.474 INFO [stderr] usermod: no changes
Dec 04 19:51:47.544 INFO [stderr]     Checking bf v0.1.0 (/source)
Dec 04 19:51:48.199 INFO [stderr] warning: unused variable: `arg1`
Dec 04 19:51:48.199 INFO [stderr]   --> src/main.rs:17:13
Dec 04 19:51:48.199 INFO [stderr]    |
Dec 04 19:51:48.199 INFO [stderr] 17 |     let ref arg1 = args[1];
Dec 04 19:51:48.199 INFO [stderr]    |             ^^^^ help: consider using `_arg1` instead
Dec 04 19:51:48.199 INFO [stderr]    |
Dec 04 19:51:48.199 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 19:51:48.199 INFO [stderr] 
Dec 04 19:51:48.216 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 19:51:48.216 INFO [stderr]   --> src/main.rs:31:9
Dec 04 19:51:48.216 INFO [stderr]    |
Dec 04 19:51:48.216 INFO [stderr] 31 |         io::stderr().write(err.as_bytes());
Dec 04 19:51:48.216 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 19:51:48.216 INFO [stderr]    |
Dec 04 19:51:48.216 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 19:51:48.216 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 19:51:48.216 INFO [stderr] 
Dec 04 19:51:48.371 INFO [stderr] warning: unused variable: `arg1`
Dec 04 19:51:48.374 INFO [stderr]   --> src/main.rs:17:13
Dec 04 19:51:48.375 INFO [stderr]    |
Dec 04 19:51:48.375 INFO [stderr] 17 |     let ref arg1 = args[1];
Dec 04 19:51:48.375 INFO [stderr]    |             ^^^^ help: consider using `_arg1` instead
Dec 04 19:51:48.375 INFO [stderr]    |
Dec 04 19:51:48.375 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 19:51:48.375 INFO [stderr] 
Dec 04 19:51:48.408 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 19:51:48.408 INFO [stderr]   --> src/main.rs:31:9
Dec 04 19:51:48.408 INFO [stderr]    |
Dec 04 19:51:48.408 INFO [stderr] 31 |         io::stderr().write(err.as_bytes());
Dec 04 19:51:48.408 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 19:51:48.408 INFO [stderr]    |
Dec 04 19:51:48.408 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 19:51:48.408 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 19:51:48.408 INFO [stderr] 
Dec 04 19:51:48.451 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.93s
Dec 04 19:51:48.451 INFO [stderr] su: No module specific data is present
Dec 04 19:51:48.931 INFO running `"docker" "inspect" "9e27f374de96b908518c49ff7db2519b84471840d277c282d972456c36d923f5"`
Dec 04 19:51:49.139 INFO running `"docker" "rm" "-f" "9e27f374de96b908518c49ff7db2519b84471840d277c282d972456c36d923f5"`
Dec 04 19:51:49.375 INFO [stdout] 9e27f374de96b908518c49ff7db2519b84471840d277c282d972456c36d923f5