Sep 20 23:03:29.750 INFO checking dahlia/gitter-slack against try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6 for pr-54394
Sep 20 23:03:29.750 INFO running: cargo +f1a3f05968ed2a674e09b6efa4ad9df90816e2b6-alt check --frozen --all --all-targets
Sep 20 23:03:29.751 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-54394/try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54394/worker-0/try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6:/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 +f1a3f05968ed2a674e09b6efa4ad9df90816e2b6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 20 23:03:29.973 INFO blam! 918b4be605fecbb2d8663a78b713d340aa6d300cc50a1feb8acfb7790aee7d3f
Sep 20 23:03:29.976 INFO running `"docker" "start" "-a" "918b4be605fecbb2d8663a78b713d340aa6d300cc50a1feb8acfb7790aee7d3f"`
Sep 20 23:03:31.102 INFO kablam! usermod: no changes
Sep 20 23:03:31.146 INFO kablam! warning: only one of `license` or `license-file` is necessary
Sep 20 23:03:31.366 INFO kablam!     Checking futures v0.1.14
Sep 20 23:03:31.370 INFO kablam!     Checking serde v1.0.11
Sep 20 23:03:31.370 INFO kablam!     Checking iovec v0.1.0
Sep 20 23:03:31.370 INFO kablam!     Checking rand v0.3.16
Sep 20 23:03:31.370 INFO kablam!     Checking num_cpus v1.6.2
Sep 20 23:03:31.370 INFO kablam!     Checking time v0.1.38
Sep 20 23:03:31.370 INFO kablam!     Checking net2 v0.2.31
Sep 20 23:03:31.370 INFO kablam!     Checking openssl-sys v0.9.17
Sep 20 23:03:32.399 INFO kablam!    Compiling serde_derive v1.0.11
Sep 20 23:03:32.885 INFO kablam!     Checking bytes v0.4.5
Sep 20 23:03:33.811 INFO kablam!     Checking openssl v0.9.17
Sep 20 23:03:34.246 INFO kablam!     Checking mio v0.6.10
Sep 20 23:03:44.688 INFO kablam!     Checking tokio-io v0.1.3
Sep 20 23:03:44.690 INFO kablam!     Checking tokio-service v0.1.0
Sep 20 23:03:44.699 INFO kablam!     Checking futures-cpupool v0.1.5
Sep 20 23:03:47.611 INFO kablam!     Checking native-tls v0.1.4
Sep 20 23:03:49.590 INFO kablam!     Checking tokio-core v0.1.9
Sep 20 23:03:52.513 INFO kablam!     Checking tokio-proto v0.1.1
Sep 20 23:03:52.518 INFO kablam!     Checking tokio-tls v0.1.3
Sep 20 23:03:56.979 INFO kablam!     Checking hyper v0.11.2
Sep 20 23:03:57.507 INFO kablam!     Checking chrono v0.4.0
Sep 20 23:03:57.508 INFO kablam!     Checking serde_json v1.0.2
Sep 20 23:04:04.990 INFO kablam!     Checking hyper-tls v0.1.2
Sep 20 23:04:05.569 INFO kablam!     Checking gitter-slack v0.1.1 (/source)
Sep 20 23:04:06.998 INFO kablam! warning: variable does not need to be mutable
Sep 20 23:04:06.998 INFO kablam!    --> src/main.rs:139:17
Sep 20 23:04:06.998 INFO kablam!     |
Sep 20 23:04:06.998 INFO kablam! 139 |             let mut bf = &mut buffer;
Sep 20 23:04:06.998 INFO kablam!     |                 ----^^
Sep 20 23:04:06.998 INFO kablam!     |                 |
Sep 20 23:04:06.998 INFO kablam!     |                 help: remove this `mut`
Sep 20 23:04:06.998 INFO kablam!     |
Sep 20 23:04:06.998 INFO kablam!     = note: #[warn(unused_mut)] on by default
Sep 20 23:04:06.998 INFO kablam! 
Sep 20 23:04:07.034 INFO kablam! warning: variable does not need to be mutable
Sep 20 23:04:07.034 INFO kablam!    --> src/main.rs:139:17
Sep 20 23:04:07.034 INFO kablam!     |
Sep 20 23:04:07.034 INFO kablam! 139 |             let mut bf = &mut buffer;
Sep 20 23:04:07.034 INFO kablam!     |                 ----^^
Sep 20 23:04:07.034 INFO kablam!     |                 |
Sep 20 23:04:07.034 INFO kablam!     |                 help: remove this `mut`
Sep 20 23:04:07.034 INFO kablam!     |
Sep 20 23:04:07.034 INFO kablam!     = note: #[warn(unused_mut)] on by default
Sep 20 23:04:07.034 INFO kablam! 
Sep 20 23:04:07.143 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 36.00s
Sep 20 23:04:07.153 INFO kablam! su: No module specific data is present
Sep 20 23:04:08.384 INFO running `"docker" "rm" "-f" "918b4be605fecbb2d8663a78b713d340aa6d300cc50a1feb8acfb7790aee7d3f"`
Sep 20 23:04:08.495 INFO blam! 918b4be605fecbb2d8663a78b713d340aa6d300cc50a1feb8acfb7790aee7d3f