Sep 10 04:35:49.906 INFO checking dahlia/gitter-slack against try#3a2610c2a16575649896925631bf8cec4f4b1961 for pr-54090
Sep 10 04:35:49.906 INFO running: cargo +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets
Sep 10 04:35:49.906 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-4/pr-54090/try#3a2610c2a16575649896925631bf8cec4f4b1961:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-4/try#3a2610c2a16575649896925631bf8cec4f4b1961:/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 +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 04:35:50.112 INFO blam! 3b58e7611d64303abc81384dc344f88361afaf679acfad5654650789b1c47fa5
Sep 10 04:35:50.113 INFO running `"docker" "start" "-a" "3b58e7611d64303abc81384dc344f88361afaf679acfad5654650789b1c47fa5"`
Sep 10 04:35:51.446 INFO kablam! usermod: no changes
Sep 10 04:35:51.538 INFO kablam! warning: only one of `license` or `license-file` is necessary
Sep 10 04:35:51.702 INFO kablam!    Compiling gcc v0.3.53
Sep 10 04:35:51.706 INFO kablam!     Checking futures v0.1.14
Sep 10 04:35:51.706 INFO kablam!    Compiling openssl v0.9.17
Sep 10 04:35:51.706 INFO kablam!     Checking foreign-types v0.2.0
Sep 10 04:35:51.706 INFO kablam!     Checking iovec v0.1.0
Sep 10 04:35:51.706 INFO kablam!     Checking num_cpus v1.6.2
Sep 10 04:35:51.714 INFO kablam!     Checking time v0.1.38
Sep 10 04:35:51.714 INFO kablam!     Checking net2 v0.2.31
Sep 10 04:35:52.426 INFO kablam!     Checking base64 v0.6.0
Sep 10 04:35:53.415 INFO kablam!    Compiling unicase v2.0.0
Sep 10 04:35:53.435 INFO kablam!     Checking bytes v0.4.5
Sep 10 04:35:55.614 INFO kablam!     Checking mio v0.6.10
Sep 10 04:35:56.204 INFO kablam!     Checking chrono v0.4.0
Sep 10 04:36:01.443 INFO kablam!    Compiling openssl-sys v0.9.17
Sep 10 04:36:02.194 INFO kablam!     Checking mime v0.3.3
Sep 10 04:36:05.942 INFO kablam!     Checking tokio-io v0.1.3
Sep 10 04:36:05.942 INFO kablam!     Checking tokio-service v0.1.0
Sep 10 04:36:05.942 INFO kablam!     Checking futures-cpupool v0.1.5
Sep 10 04:36:08.179 INFO kablam!     Checking tokio-core v0.1.9
Sep 10 04:36:10.050 INFO kablam!     Checking tokio-proto v0.1.1
Sep 10 04:36:11.859 INFO kablam!     Checking native-tls v0.1.4
Sep 10 04:36:12.648 INFO kablam!     Checking tokio-tls v0.1.3
Sep 10 04:36:13.708 INFO kablam!     Checking hyper v0.11.2
Sep 10 04:36:18.433 INFO kablam!     Checking hyper-tls v0.1.2
Sep 10 04:36:19.050 INFO kablam!     Checking gitter-slack v0.1.1 (file:///source)
Sep 10 04:36:20.362 INFO kablam! warning: variable does not need to be mutable
Sep 10 04:36:20.362 INFO kablam!    --> src/main.rs:139:17
Sep 10 04:36:20.362 INFO kablam!     |
Sep 10 04:36:20.362 INFO kablam! 139 |             let mut bf = &mut buffer;
Sep 10 04:36:20.362 INFO kablam!     |                 ----^^
Sep 10 04:36:20.362 INFO kablam!     |                 |
Sep 10 04:36:20.362 INFO kablam!     |                 help: remove this `mut`
Sep 10 04:36:20.365 INFO kablam!     |
Sep 10 04:36:20.366 INFO kablam!     = note: #[warn(unused_mut)] on by default
Sep 10 04:36:20.366 INFO kablam! 
Sep 10 04:36:20.375 INFO kablam! warning: variable does not need to be mutable
Sep 10 04:36:20.375 INFO kablam!    --> src/main.rs:139:17
Sep 10 04:36:20.375 INFO kablam!     |
Sep 10 04:36:20.375 INFO kablam! 139 |             let mut bf = &mut buffer;
Sep 10 04:36:20.375 INFO kablam!     |                 ----^^
Sep 10 04:36:20.375 INFO kablam!     |                 |
Sep 10 04:36:20.375 INFO kablam!     |                 help: remove this `mut`
Sep 10 04:36:20.382 INFO kablam!     |
Sep 10 04:36:20.386 INFO kablam!     = note: #[warn(unused_mut)] on by default
Sep 10 04:36:20.387 INFO kablam! 
Sep 10 04:36:20.490 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 29.00s
Sep 10 04:36:20.506 INFO kablam! su: No module specific data is present
Sep 10 04:36:21.218 INFO running `"docker" "rm" "-f" "3b58e7611d64303abc81384dc344f88361afaf679acfad5654650789b1c47fa5"`
Sep 10 04:36:21.329 INFO blam! 3b58e7611d64303abc81384dc344f88361afaf679acfad5654650789b1c47fa5