Nov 03 08:04:27.459 INFO checking gitter-slack-0.1.1 against try#dc8b02d6f1e93f212fc39844ea688b634b4a03c7 for pr-55517
Nov 03 08:04:27.461 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55517/worker-0/try#dc8b02d6f1e93f212fc39844ea688b634b4a03c7:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-55517/try#dc8b02d6f1e93f212fc39844ea688b634b4a03c7:/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 +dc8b02d6f1e93f212fc39844ea688b634b4a03c7-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 03 08:04:27.910 INFO blam! c5a91fd8b7967eed61f6caa0dba7a1f0655ea571b68df17cf1ad4b3b0a1033d4
Nov 03 08:04:27.918 INFO running `"docker" "start" "-a" "c5a91fd8b7967eed61f6caa0dba7a1f0655ea571b68df17cf1ad4b3b0a1033d4"`
Nov 03 08:04:29.775 INFO kablam! usermod: no changes
Nov 03 08:04:29.816 INFO kablam! warning: only one of `license` or `license-file` is necessary
Nov 03 08:04:30.076 INFO kablam!     Checking gitter-slack v0.1.1 (/source)
Nov 03 08:04:40.304 INFO kablam! warning: variable does not need to be mutable
Nov 03 08:04:40.304 INFO kablam!    --> src/main.rs:139:17
Nov 03 08:04:40.304 INFO kablam!     |
Nov 03 08:04:40.304 INFO kablam! 139 |             let mut bf = &mut buffer;
Nov 03 08:04:40.304 INFO kablam!     |                 ----^^
Nov 03 08:04:40.304 INFO kablam!     |                 |
Nov 03 08:04:40.304 INFO kablam!     |                 help: remove this `mut`
Nov 03 08:04:40.304 INFO kablam!     |
Nov 03 08:04:40.304 INFO kablam!     = note: #[warn(unused_mut)] on by default
Nov 03 08:04:40.304 INFO kablam! 
Nov 03 08:04:40.455 INFO kablam! warning: variable does not need to be mutable
Nov 03 08:04:40.455 INFO kablam!    --> src/main.rs:139:17
Nov 03 08:04:40.455 INFO kablam!     |
Nov 03 08:04:40.455 INFO kablam! 139 |             let mut bf = &mut buffer;
Nov 03 08:04:40.455 INFO kablam!     |                 ----^^
Nov 03 08:04:40.456 INFO kablam!     |                 |
Nov 03 08:04:40.456 INFO kablam!     |                 help: remove this `mut`
Nov 03 08:04:40.456 INFO kablam!     |
Nov 03 08:04:40.456 INFO kablam!     = note: #[warn(unused_mut)] on by default
Nov 03 08:04:40.456 INFO kablam! 
Nov 03 08:04:40.617 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 10.82s
Nov 03 08:04:40.638 INFO kablam! su: No module specific data is present
Nov 03 08:04:41.988 INFO running `"docker" "rm" "-f" "c5a91fd8b7967eed61f6caa0dba7a1f0655ea571b68df17cf1ad4b3b0a1033d4"`
Nov 03 08:04:42.304 INFO blam! c5a91fd8b7967eed61f6caa0dba7a1f0655ea571b68df17cf1ad4b3b0a1033d4