Dec 11 20:15:10.664 INFO checking dahlia/gitter-slack against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 20:15:10.665 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-2/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/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 +aa9aa79c3c583aab59ac9134542d60a780c35e2e-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 11 20:15:11.316 INFO [stdout] 4afea3ec9f66a94ee25926077405ea90f481bede1d1a1f1ad642d426e5a8b3ab
Dec 11 20:15:11.324 INFO running `"docker" "start" "-a" "4afea3ec9f66a94ee25926077405ea90f481bede1d1a1f1ad642d426e5a8b3ab"`
Dec 11 20:15:12.431 INFO [stderr] usermod: no changes
Dec 11 20:15:12.483 INFO [stderr] warning: only one of `license` or `license-file` is necessary
Dec 11 20:15:12.664 INFO [stderr]     Checking chrono v0.4.0
Dec 11 20:15:12.664 INFO [stderr]     Checking tokio-proto v0.1.1
Dec 11 20:15:12.676 INFO [stderr]     Checking tokio-tls v0.1.3
Dec 11 20:15:17.076 INFO [stderr]     Checking hyper v0.11.2
Dec 11 20:15:21.868 INFO [stderr]     Checking hyper-tls v0.1.2
Dec 11 20:15:23.614 INFO [stderr]     Checking gitter-slack v0.1.1 (/source)
Dec 11 20:15:26.816 INFO [stderr] warning: variable does not need to be mutable
Dec 11 20:15:26.816 INFO [stderr]    --> src/main.rs:139:17
Dec 11 20:15:26.816 INFO [stderr]     |
Dec 11 20:15:26.816 INFO [stderr] 139 |             let mut bf = &mut buffer;
Dec 11 20:15:26.816 INFO [stderr]     |                 ----^^
Dec 11 20:15:26.816 INFO [stderr]     |                 |
Dec 11 20:15:26.816 INFO [stderr]     |                 help: remove this `mut`
Dec 11 20:15:26.816 INFO [stderr]     |
Dec 11 20:15:26.816 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 11 20:15:26.816 INFO [stderr] 
Dec 11 20:15:27.116 INFO [stderr] warning: variable does not need to be mutable
Dec 11 20:15:27.116 INFO [stderr]    --> src/main.rs:139:17
Dec 11 20:15:27.116 INFO [stderr]     |
Dec 11 20:15:27.116 INFO [stderr] 139 |             let mut bf = &mut buffer;
Dec 11 20:15:27.116 INFO [stderr]     |                 ----^^
Dec 11 20:15:27.116 INFO [stderr]     |                 |
Dec 11 20:15:27.116 INFO [stderr]     |                 help: remove this `mut`
Dec 11 20:15:27.116 INFO [stderr]     |
Dec 11 20:15:27.116 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 11 20:15:27.116 INFO [stderr] 
Dec 11 20:15:27.192 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.73s
Dec 11 20:15:27.196 INFO [stderr] su: No module specific data is present
Dec 11 20:15:27.926 INFO running `"docker" "inspect" "4afea3ec9f66a94ee25926077405ea90f481bede1d1a1f1ad642d426e5a8b3ab"`
Dec 11 20:15:28.236 INFO running `"docker" "rm" "-f" "4afea3ec9f66a94ee25926077405ea90f481bede1d1a1f1ad642d426e5a8b3ab"`
Dec 11 20:15:28.464 INFO [stdout] 4afea3ec9f66a94ee25926077405ea90f481bede1d1a1f1ad642d426e5a8b3ab