Dec 05 07:16:06.005 INFO checking rusty-sandbox-0.1.0 against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 05 07:16:06.005 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-3/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/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 05 07:16:06.492 INFO [stdout] 026ad022d7e27a7400559615e93fbd1964b4323b128f56b2b0befd66d4bfc43c
Dec 05 07:16:06.494 INFO running `"docker" "start" "-a" "026ad022d7e27a7400559615e93fbd1964b4323b128f56b2b0befd66d4bfc43c"`
Dec 05 07:16:07.986 INFO [stderr] usermod: no changes
Dec 05 07:16:08.032 INFO [stderr]     Checking unix_socket v0.5.0
Dec 05 07:16:08.888 INFO [stderr]     Checking rusty-sandbox v0.1.0 (/source)
Dec 05 07:16:09.750 INFO [stderr] warning: variable does not need to be mutable
Dec 05 07:16:09.750 INFO [stderr]    --> src/lib.rs:116:13
Dec 05 07:16:09.750 INFO [stderr]     |
Dec 05 07:16:09.750 INFO [stderr] 116 |         let mut f = File::open("UNLICENSE").unwrap();
Dec 05 07:16:09.750 INFO [stderr]     |             ----^
Dec 05 07:16:09.750 INFO [stderr]     |             |
Dec 05 07:16:09.750 INFO [stderr]     |             help: remove this `mut`
Dec 05 07:16:09.750 INFO [stderr]     |
Dec 05 07:16:09.750 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 05 07:16:09.750 INFO [stderr] 
Dec 05 07:16:09.750 INFO [stderr] warning: variable does not need to be mutable
Dec 05 07:16:09.750 INFO [stderr]    --> src/lib.rs:117:13
Dec 05 07:16:09.750 INFO [stderr]     |
Dec 05 07:16:09.750 INFO [stderr] 117 |         let mut process = Sandbox::new()
Dec 05 07:16:09.750 INFO [stderr]     |             ----^^^^^^^
Dec 05 07:16:09.750 INFO [stderr]     |             |
Dec 05 07:16:09.750 INFO [stderr]     |             help: remove this `mut`
Dec 05 07:16:09.750 INFO [stderr] 
Dec 05 07:16:09.810 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.80s
Dec 05 07:16:09.811 INFO [stderr] su: No module specific data is present
Dec 05 07:16:10.423 INFO running `"docker" "inspect" "026ad022d7e27a7400559615e93fbd1964b4323b128f56b2b0befd66d4bfc43c"`
Dec 05 07:16:10.811 INFO running `"docker" "rm" "-f" "026ad022d7e27a7400559615e93fbd1964b4323b128f56b2b0befd66d4bfc43c"`
Dec 05 07:16:11.083 INFO [stdout] 026ad022d7e27a7400559615e93fbd1964b4323b128f56b2b0befd66d4bfc43c