Nov 30 22:23:12.473 INFO checking gitter-slack-0.1.1 against master#a49316ddc99d9d595193557fc899f6c52e4d9af9 for pr-56323
Nov 30 22:23:12.473 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-4/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56323/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/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 +a49316ddc99d9d595193557fc899f6c52e4d9af9-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 22:23:12.920 INFO [stdout] fc427cedc032123664e3df91a97f77f0d194ae69ddb6e5378ca42dd0625ed9ef
Nov 30 22:23:12.922 INFO running `"docker" "start" "-a" "fc427cedc032123664e3df91a97f77f0d194ae69ddb6e5378ca42dd0625ed9ef"`
Nov 30 22:23:14.286 INFO [stderr] usermod: no changes
Nov 30 22:23:14.351 INFO [stderr] warning: only one of `license` or `license-file` is necessary
Nov 30 22:23:14.826 INFO [stderr]     Checking chrono v0.4.6
Nov 30 22:23:17.592 INFO [stderr]     Checking gitter-slack v0.1.1 (/source)
Nov 30 22:23:28.914 INFO [stderr] warning: variable does not need to be mutable
Nov 30 22:23:28.915 INFO [stderr]    --> src/main.rs:139:17
Nov 30 22:23:28.915 INFO [stderr]     |
Nov 30 22:23:28.915 INFO [stderr] 139 |             let mut bf = &mut buffer;
Nov 30 22:23:28.915 INFO [stderr]     |                 ----^^
Nov 30 22:23:28.915 INFO [stderr]     |                 |
Nov 30 22:23:28.915 INFO [stderr]     |                 help: remove this `mut`
Nov 30 22:23:28.915 INFO [stderr]     |
Nov 30 22:23:28.915 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 30 22:23:28.915 INFO [stderr] 
Nov 30 22:23:29.116 INFO [stderr] warning: variable does not need to be mutable
Nov 30 22:23:29.116 INFO [stderr]    --> src/main.rs:139:17
Nov 30 22:23:29.116 INFO [stderr]     |
Nov 30 22:23:29.116 INFO [stderr] 139 |             let mut bf = &mut buffer;
Nov 30 22:23:29.116 INFO [stderr]     |                 ----^^
Nov 30 22:23:29.116 INFO [stderr]     |                 |
Nov 30 22:23:29.116 INFO [stderr]     |                 help: remove this `mut`
Nov 30 22:23:29.116 INFO [stderr]     |
Nov 30 22:23:29.116 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 30 22:23:29.116 INFO [stderr] 
Nov 30 22:23:29.160 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.85s
Nov 30 22:23:29.176 INFO [stderr] su: No module specific data is present
Nov 30 22:23:29.848 INFO running `"docker" "inspect" "fc427cedc032123664e3df91a97f77f0d194ae69ddb6e5378ca42dd0625ed9ef"`
Nov 30 22:23:30.210 INFO running `"docker" "rm" "-f" "fc427cedc032123664e3df91a97f77f0d194ae69ddb6e5378ca42dd0625ed9ef"`
Nov 30 22:23:30.512 INFO [stdout] fc427cedc032123664e3df91a97f77f0d194ae69ddb6e5378ca42dd0625ed9ef