Dec 05 16:00:52.416 INFO checking buffoon-0.5.0 against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 16:00:52.417 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 05 16:00:52.659 INFO [stdout] 618c441f756ba0f4cf6fa416e2a5331e84e4bba6af4954210e723db311cb16f4
Dec 05 16:00:52.661 INFO running `"docker" "start" "-a" "618c441f756ba0f4cf6fa416e2a5331e84e4bba6af4954210e723db311cb16f4"`
Dec 05 16:00:53.559 INFO [stderr] usermod: no changes
Dec 05 16:00:53.606 INFO [stderr]     Checking buffoon v0.5.0 (/source)
Dec 05 16:00:54.451 INFO [stderr] warning: variable does not need to be mutable
Dec 05 16:00:54.451 INFO [stderr]    --> src/input_stream.rs:104:17
Dec 05 16:00:54.451 INFO [stderr]     |
Dec 05 16:00:54.451 INFO [stderr] 104 |             let mut buf = slice::from_raw_parts_mut(ret.as_mut_ptr(), len);
Dec 05 16:00:54.451 INFO [stderr]     |                 ----^^^
Dec 05 16:00:54.451 INFO [stderr]     |                 |
Dec 05 16:00:54.451 INFO [stderr]     |                 help: remove this `mut`
Dec 05 16:00:54.451 INFO [stderr]     |
Dec 05 16:00:54.451 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 05 16:00:54.451 INFO [stderr] 
Dec 05 16:00:54.711 INFO [stderr] warning: variable does not need to be mutable
Dec 05 16:00:54.711 INFO [stderr]    --> src/input_stream.rs:104:17
Dec 05 16:00:54.711 INFO [stderr]     |
Dec 05 16:00:54.711 INFO [stderr] 104 |             let mut buf = slice::from_raw_parts_mut(ret.as_mut_ptr(), len);
Dec 05 16:00:54.711 INFO [stderr]     |                 ----^^^
Dec 05 16:00:54.711 INFO [stderr]     |                 |
Dec 05 16:00:54.711 INFO [stderr]     |                 help: remove this `mut`
Dec 05 16:00:54.711 INFO [stderr]     |
Dec 05 16:00:54.711 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 05 16:00:54.711 INFO [stderr] 
Dec 05 16:00:54.799 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.20s
Dec 05 16:00:54.799 INFO [stderr] su: No module specific data is present
Dec 05 16:00:55.360 INFO running `"docker" "inspect" "618c441f756ba0f4cf6fa416e2a5331e84e4bba6af4954210e723db311cb16f4"`
Dec 05 16:00:55.763 INFO running `"docker" "rm" "-f" "618c441f756ba0f4cf6fa416e2a5331e84e4bba6af4954210e723db311cb16f4"`
Dec 05 16:00:56.095 INFO [stdout] 618c441f756ba0f4cf6fa416e2a5331e84e4bba6af4954210e723db311cb16f4