Dec 05 13:15:25.204 INFO checking gitter-slack-0.1.1 against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 13:15:25.204 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-3/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/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 13:15:25.731 INFO [stdout] a82d3717005f09a0e581ff0870ef496c87a2442ef89fd5a5003f424382278ab6
Dec 05 13:15:25.733 INFO running `"docker" "start" "-a" "a82d3717005f09a0e581ff0870ef496c87a2442ef89fd5a5003f424382278ab6"`
Dec 05 13:15:27.159 INFO [stderr] usermod: no changes
Dec 05 13:15:27.239 INFO [stderr] warning: only one of `license` or `license-file` is necessary
Dec 05 13:15:27.547 INFO [stderr]     Checking chrono v0.4.6
Dec 05 13:15:30.190 INFO [stderr]     Checking gitter-slack v0.1.1 (/source)
Dec 05 13:15:41.342 INFO [stderr] warning: variable does not need to be mutable
Dec 05 13:15:41.342 INFO [stderr]    --> src/main.rs:139:17
Dec 05 13:15:41.342 INFO [stderr]     |
Dec 05 13:15:41.342 INFO [stderr] 139 |             let mut bf = &mut buffer;
Dec 05 13:15:41.343 INFO [stderr]     |                 ----^^
Dec 05 13:15:41.343 INFO [stderr]     |                 |
Dec 05 13:15:41.343 INFO [stderr]     |                 help: remove this `mut`
Dec 05 13:15:41.344 INFO [stderr]     |
Dec 05 13:15:41.344 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 05 13:15:41.344 INFO [stderr] 
Dec 05 13:15:41.687 INFO [stderr] warning: variable does not need to be mutable
Dec 05 13:15:41.687 INFO [stderr]    --> src/main.rs:139:17
Dec 05 13:15:41.687 INFO [stderr]     |
Dec 05 13:15:41.688 INFO [stderr] 139 |             let mut bf = &mut buffer;
Dec 05 13:15:41.688 INFO [stderr]     |                 ----^^
Dec 05 13:15:41.688 INFO [stderr]     |                 |
Dec 05 13:15:41.689 INFO [stderr]     |                 help: remove this `mut`
Dec 05 13:15:41.689 INFO [stderr]     |
Dec 05 13:15:41.689 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 05 13:15:41.689 INFO [stderr] 
Dec 05 13:15:41.835 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.65s
Dec 05 13:15:41.844 INFO [stderr] su: No module specific data is present
Dec 05 13:15:42.549 INFO running `"docker" "inspect" "a82d3717005f09a0e581ff0870ef496c87a2442ef89fd5a5003f424382278ab6"`
Dec 05 13:15:42.875 INFO running `"docker" "rm" "-f" "a82d3717005f09a0e581ff0870ef496c87a2442ef89fd5a5003f424382278ab6"`
Dec 05 13:15:43.222 INFO [stdout] a82d3717005f09a0e581ff0870ef496c87a2442ef89fd5a5003f424382278ab6