Dec 05 13:15:25.684 INFO checking gitter-slack-0.1.1 against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 05 13:15:25.684 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-4/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/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 13:15:26.223 INFO [stdout] ccaaf3e7577c9ba9f52ddd39cbe18ff1c124592ac6649ff5c956f12f7c9b4fb3
Dec 05 13:15:26.229 INFO running `"docker" "start" "-a" "ccaaf3e7577c9ba9f52ddd39cbe18ff1c124592ac6649ff5c956f12f7c9b4fb3"`
Dec 05 13:15:27.659 INFO [stderr] usermod: no changes
Dec 05 13:15:27.719 INFO [stderr] warning: only one of `license` or `license-file` is necessary
Dec 05 13:15:28.042 INFO [stderr]     Checking chrono v0.4.6
Dec 05 13:15:30.879 INFO [stderr]     Checking gitter-slack v0.1.1 (/source)
Dec 05 13:15:41.721 INFO [stderr] warning: variable does not need to be mutable
Dec 05 13:15:41.721 INFO [stderr]    --> src/main.rs:139:17
Dec 05 13:15:41.721 INFO [stderr]     |
Dec 05 13:15:41.721 INFO [stderr] 139 |             let mut bf = &mut buffer;
Dec 05 13:15:41.721 INFO [stderr]     |                 ----^^
Dec 05 13:15:41.721 INFO [stderr]     |                 |
Dec 05 13:15:41.721 INFO [stderr]     |                 help: remove this `mut`
Dec 05 13:15:41.721 INFO [stderr]     |
Dec 05 13:15:41.721 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 05 13:15:41.721 INFO [stderr] 
Dec 05 13:15:41.880 INFO [stderr] warning: variable does not need to be mutable
Dec 05 13:15:41.880 INFO [stderr]    --> src/main.rs:139:17
Dec 05 13:15:41.880 INFO [stderr]     |
Dec 05 13:15:41.880 INFO [stderr] 139 |             let mut bf = &mut buffer;
Dec 05 13:15:41.880 INFO [stderr]     |                 ----^^
Dec 05 13:15:41.880 INFO [stderr]     |                 |
Dec 05 13:15:41.880 INFO [stderr]     |                 help: remove this `mut`
Dec 05 13:15:41.880 INFO [stderr]     |
Dec 05 13:15:41.881 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 05 13:15:41.881 INFO [stderr] 
Dec 05 13:15:41.948 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.27s
Dec 05 13:15:41.971 INFO [stderr] su: No module specific data is present
Dec 05 13:15:42.563 INFO running `"docker" "inspect" "ccaaf3e7577c9ba9f52ddd39cbe18ff1c124592ac6649ff5c956f12f7c9b4fb3"`
Dec 05 13:15:42.904 INFO running `"docker" "rm" "-f" "ccaaf3e7577c9ba9f52ddd39cbe18ff1c124592ac6649ff5c956f12f7c9b4fb3"`
Dec 05 13:15:43.215 INFO [stdout] ccaaf3e7577c9ba9f52ddd39cbe18ff1c124592ac6649ff5c956f12f7c9b4fb3