Sep 21 09:51:36.435 INFO checking gitter-slack-0.1.1 against master#f7f4c500b46603386e940f116b469c7adc043a6d for pr-54394
Sep 21 09:51:36.435 INFO running: cargo +f7f4c500b46603386e940f116b469c7adc043a6d-alt check --frozen --all --all-targets
Sep 21 09:51:36.435 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-7/pr-54394/master#f7f4c500b46603386e940f116b469c7adc043a6d:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54394/worker-7/master#f7f4c500b46603386e940f116b469c7adc043a6d:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "CMD=cargo +f7f4c500b46603386e940f116b469c7adc043a6d-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 21 09:51:36.566 INFO blam! 361ce5b0859ab79b87d60fb7e6b7f6797b9f4d798b1fb3baec27f8140fd77d47
Sep 21 09:51:36.568 INFO running `"docker" "start" "-a" "361ce5b0859ab79b87d60fb7e6b7f6797b9f4d798b1fb3baec27f8140fd77d47"`
Sep 21 09:51:37.234 INFO kablam! usermod: no changes
Sep 21 09:51:37.267 INFO kablam! warning: only one of `license` or `license-file` is necessary
Sep 21 09:51:37.495 INFO kablam!     Checking gitter-slack v0.1.1 (/source)
Sep 21 09:51:41.080 INFO kablam! warning: variable does not need to be mutable
Sep 21 09:51:41.081 INFO kablam!    --> src/main.rs:139:17
Sep 21 09:51:41.081 INFO kablam!     |
Sep 21 09:51:41.081 INFO kablam! 139 |             let mut bf = &mut buffer;
Sep 21 09:51:41.082 INFO kablam!     |                 ----^^
Sep 21 09:51:41.082 INFO kablam!     |                 |
Sep 21 09:51:41.082 INFO kablam!     |                 help: remove this `mut`
Sep 21 09:51:41.083 INFO kablam!     |
Sep 21 09:51:41.083 INFO kablam!     = note: #[warn(unused_mut)] on by default
Sep 21 09:51:41.083 INFO kablam! 
Sep 21 09:51:41.526 INFO kablam! warning: variable does not need to be mutable
Sep 21 09:51:41.526 INFO kablam!    --> src/main.rs:139:17
Sep 21 09:51:41.526 INFO kablam!     |
Sep 21 09:51:41.526 INFO kablam! 139 |             let mut bf = &mut buffer;
Sep 21 09:51:41.526 INFO kablam!     |                 ----^^
Sep 21 09:51:41.526 INFO kablam!     |                 |
Sep 21 09:51:41.526 INFO kablam!     |                 help: remove this `mut`
Sep 21 09:51:41.526 INFO kablam!     |
Sep 21 09:51:41.526 INFO kablam!     = note: #[warn(unused_mut)] on by default
Sep 21 09:51:41.526 INFO kablam! 
Sep 21 09:51:41.630 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 4.36s
Sep 21 09:51:41.654 INFO kablam! su: No module specific data is present
Sep 21 09:51:42.906 INFO running `"docker" "rm" "-f" "361ce5b0859ab79b87d60fb7e6b7f6797b9f4d798b1fb3baec27f8140fd77d47"`
Sep 21 09:51:43.042 INFO blam! 361ce5b0859ab79b87d60fb7e6b7f6797b9f4d798b1fb3baec27f8140fd77d47