Sep 20 23:03:30.517 INFO checking dahlia/gitter-slack against master#f7f4c500b46603386e940f116b469c7adc043a6d for pr-54394
Sep 20 23:03:30.517 INFO running: cargo +f7f4c500b46603386e940f116b469c7adc043a6d-alt check --frozen --all --all-targets
Sep 20 23:03:30.517 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-5/pr-54394/master#f7f4c500b46603386e940f116b469c7adc043a6d:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54394/worker-5/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 20 23:03:30.751 INFO blam! 78e042ef91e7cb24baa49bea8b660913591d8114251e45af3442e01f0a872400
Sep 20 23:03:30.753 INFO running `"docker" "start" "-a" "78e042ef91e7cb24baa49bea8b660913591d8114251e45af3442e01f0a872400"`
Sep 20 23:03:32.790 INFO kablam! usermod: no changes
Sep 20 23:03:32.830 INFO kablam! warning: only one of `license` or `license-file` is necessary
Sep 20 23:03:33.039 INFO kablam!    Compiling openssl v0.9.17
Sep 20 23:03:33.040 INFO kablam!     Checking serde v1.0.11
Sep 20 23:03:33.050 INFO kablam!     Checking iovec v0.1.0
Sep 20 23:03:33.050 INFO kablam!     Checking num_cpus v1.6.2
Sep 20 23:03:33.050 INFO kablam!     Checking time v0.1.38
Sep 20 23:03:33.051 INFO kablam!    Compiling openssl-sys v0.9.17
Sep 20 23:03:33.051 INFO kablam!     Checking net2 v0.2.31
Sep 20 23:03:33.062 INFO kablam!     Checking num-integer v0.1.35
Sep 20 23:03:34.418 INFO kablam!     Checking bytes v0.4.5
Sep 20 23:03:34.575 INFO kablam!     Checking futures-cpupool v0.1.5
Sep 20 23:03:35.979 INFO kablam!    Compiling serde_derive v1.0.11
Sep 20 23:03:36.282 INFO kablam!     Checking num-iter v0.1.34
Sep 20 23:03:36.695 INFO kablam!     Checking mime v0.3.3
Sep 20 23:03:37.608 INFO kablam!     Checking mio v0.6.10
Sep 20 23:03:37.795 INFO kablam!     Checking num v0.1.40
Sep 20 23:03:39.778 INFO kablam!     Checking tokio-io v0.1.3
Sep 20 23:03:43.297 INFO kablam!     Checking tokio-core v0.1.9
Sep 20 23:03:47.263 INFO kablam!     Checking tokio-proto v0.1.1
Sep 20 23:03:52.851 INFO kablam!     Checking native-tls v0.1.4
Sep 20 23:03:53.703 INFO kablam!     Checking hyper v0.11.2
Sep 20 23:03:53.988 INFO kablam!     Checking tokio-tls v0.1.3
Sep 20 23:04:02.458 INFO kablam!     Checking chrono v0.4.0
Sep 20 23:04:02.458 INFO kablam!     Checking serde_json v1.0.2
Sep 20 23:04:03.020 INFO kablam!     Checking hyper-tls v0.1.2
Sep 20 23:04:07.165 INFO kablam!     Checking gitter-slack v0.1.1 (/source)
Sep 20 23:04:08.328 INFO kablam! warning: variable does not need to be mutable
Sep 20 23:04:08.329 INFO kablam!    --> src/main.rs:139:17
Sep 20 23:04:08.329 INFO kablam!     |
Sep 20 23:04:08.329 INFO kablam! 139 |             let mut bf = &mut buffer;
Sep 20 23:04:08.330 INFO kablam!     |                 ----^^
Sep 20 23:04:08.330 INFO kablam!     |                 |
Sep 20 23:04:08.330 INFO kablam!     |                 help: remove this `mut`
Sep 20 23:04:08.331 INFO kablam!     |
Sep 20 23:04:08.331 INFO kablam!     = note: #[warn(unused_mut)] on by default
Sep 20 23:04:08.332 INFO kablam! 
Sep 20 23:04:08.402 INFO kablam! warning: variable does not need to be mutable
Sep 20 23:04:08.402 INFO kablam!    --> src/main.rs:139:17
Sep 20 23:04:08.402 INFO kablam!     |
Sep 20 23:04:08.402 INFO kablam! 139 |             let mut bf = &mut buffer;
Sep 20 23:04:08.402 INFO kablam!     |                 ----^^
Sep 20 23:04:08.403 INFO kablam!     |                 |
Sep 20 23:04:08.403 INFO kablam!     |                 help: remove this `mut`
Sep 20 23:04:08.403 INFO kablam!     |
Sep 20 23:04:08.403 INFO kablam!     = note: #[warn(unused_mut)] on by default
Sep 20 23:04:08.404 INFO kablam! 
Sep 20 23:04:08.516 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 35.70s
Sep 20 23:04:08.530 INFO kablam! su: No module specific data is present
Sep 20 23:04:09.547 INFO running `"docker" "rm" "-f" "78e042ef91e7cb24baa49bea8b660913591d8114251e45af3442e01f0a872400"`
Sep 20 23:04:09.660 INFO blam! 78e042ef91e7cb24baa49bea8b660913591d8114251e45af3442e01f0a872400