Nov 30 22:23:12.236 INFO checking gitter-slack-0.1.1 against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Nov 30 22:23:12.236 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-5/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56323/try#32252761328f59ccfadb1bafb8148c685bc830b3:/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 +32252761328f59ccfadb1bafb8148c685bc830b3-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"`
Nov 30 22:23:12.713 INFO [stdout] 4933bffbbc3fb0d8a6b1da3092d87697987c9186d7ec8debed2196bf246c6df5
Nov 30 22:23:12.718 INFO running `"docker" "start" "-a" "4933bffbbc3fb0d8a6b1da3092d87697987c9186d7ec8debed2196bf246c6df5"`
Nov 30 22:23:14.139 INFO [stderr] usermod: no changes
Nov 30 22:23:14.212 INFO [stderr] warning: only one of `license` or `license-file` is necessary
Nov 30 22:23:14.597 INFO [stderr]     Checking gitter-slack v0.1.1 (/source)
Nov 30 22:23:26.004 INFO [stderr] warning: variable does not need to be mutable
Nov 30 22:23:26.005 INFO [stderr]    --> src/main.rs:139:17
Nov 30 22:23:26.005 INFO [stderr]     |
Nov 30 22:23:26.005 INFO [stderr] 139 |             let mut bf = &mut buffer;
Nov 30 22:23:26.006 INFO [stderr]     |                 ----^^
Nov 30 22:23:26.006 INFO [stderr]     |                 |
Nov 30 22:23:26.006 INFO [stderr]     |                 help: remove this `mut`
Nov 30 22:23:26.006 INFO [stderr]     |
Nov 30 22:23:26.007 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 30 22:23:26.007 INFO [stderr] 
Nov 30 22:23:26.048 INFO [stderr] warning: variable does not need to be mutable
Nov 30 22:23:26.048 INFO [stderr]    --> src/main.rs:139:17
Nov 30 22:23:26.048 INFO [stderr]     |
Nov 30 22:23:26.048 INFO [stderr] 139 |             let mut bf = &mut buffer;
Nov 30 22:23:26.048 INFO [stderr]     |                 ----^^
Nov 30 22:23:26.048 INFO [stderr]     |                 |
Nov 30 22:23:26.048 INFO [stderr]     |                 help: remove this `mut`
Nov 30 22:23:26.048 INFO [stderr]     |
Nov 30 22:23:26.048 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 30 22:23:26.048 INFO [stderr] 
Nov 30 22:23:26.209 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.05s
Nov 30 22:23:26.225 INFO [stderr] su: No module specific data is present
Nov 30 22:23:27.184 INFO running `"docker" "inspect" "4933bffbbc3fb0d8a6b1da3092d87697987c9186d7ec8debed2196bf246c6df5"`
Nov 30 22:23:27.516 INFO running `"docker" "rm" "-f" "4933bffbbc3fb0d8a6b1da3092d87697987c9186d7ec8debed2196bf246c6df5"`
Nov 30 22:23:27.772 INFO [stdout] 4933bffbbc3fb0d8a6b1da3092d87697987c9186d7ec8debed2196bf246c6df5