Dec 04 20:22:23.704 INFO checking dahlia/gitter-slack against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 20:22:23.704 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-6/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/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 04 20:22:24.187 INFO [stdout] d2f854cf2a7201b20ab75e9ca55bc5409f9f6c4db28c382d09546b225bb68eb0
Dec 04 20:22:24.189 INFO running `"docker" "start" "-a" "d2f854cf2a7201b20ab75e9ca55bc5409f9f6c4db28c382d09546b225bb68eb0"`
Dec 04 20:22:25.998 INFO [stderr] usermod: no changes
Dec 04 20:22:26.047 INFO [stderr] warning: only one of `license` or `license-file` is necessary
Dec 04 20:22:26.213 INFO [stderr]     Checking tokio-io v0.1.3
Dec 04 20:22:26.214 INFO [stderr]     Checking chrono v0.4.0
Dec 04 20:22:28.698 INFO [stderr]     Checking tokio-core v0.1.9
Dec 04 20:22:30.879 INFO [stderr]     Checking tokio-proto v0.1.1
Dec 04 20:22:30.879 INFO [stderr]     Checking tokio-tls v0.1.3
Dec 04 20:22:34.179 INFO [stderr]     Checking hyper v0.11.2
Dec 04 20:22:39.222 INFO [stderr]     Checking hyper-tls v0.1.2
Dec 04 20:22:40.843 INFO [stderr]     Checking gitter-slack v0.1.1 (/source)
Dec 04 20:22:43.247 INFO [stderr] warning: variable does not need to be mutable
Dec 04 20:22:43.247 INFO [stderr]    --> src/main.rs:139:17
Dec 04 20:22:43.247 INFO [stderr]     |
Dec 04 20:22:43.247 INFO [stderr] 139 |             let mut bf = &mut buffer;
Dec 04 20:22:43.247 INFO [stderr]     |                 ----^^
Dec 04 20:22:43.247 INFO [stderr]     |                 |
Dec 04 20:22:43.247 INFO [stderr]     |                 help: remove this `mut`
Dec 04 20:22:43.247 INFO [stderr]     |
Dec 04 20:22:43.247 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 04 20:22:43.247 INFO [stderr] 
Dec 04 20:22:43.315 INFO [stderr] warning: variable does not need to be mutable
Dec 04 20:22:43.315 INFO [stderr]    --> src/main.rs:139:17
Dec 04 20:22:43.316 INFO [stderr]     |
Dec 04 20:22:43.316 INFO [stderr] 139 |             let mut bf = &mut buffer;
Dec 04 20:22:43.316 INFO [stderr]     |                 ----^^
Dec 04 20:22:43.316 INFO [stderr]     |                 |
Dec 04 20:22:43.316 INFO [stderr]     |                 help: remove this `mut`
Dec 04 20:22:43.316 INFO [stderr]     |
Dec 04 20:22:43.316 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 04 20:22:43.317 INFO [stderr] 
Dec 04 20:22:43.407 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.38s
Dec 04 20:22:43.430 INFO [stderr] su: No module specific data is present
Dec 04 20:22:43.856 INFO running `"docker" "inspect" "d2f854cf2a7201b20ab75e9ca55bc5409f9f6c4db28c382d09546b225bb68eb0"`
Dec 04 20:22:43.952 INFO running `"docker" "rm" "-f" "d2f854cf2a7201b20ab75e9ca55bc5409f9f6c4db28c382d09546b225bb68eb0"`
Dec 04 20:22:44.035 INFO [stdout] d2f854cf2a7201b20ab75e9ca55bc5409f9f6c4db28c382d09546b225bb68eb0