Aug 29 17:58:52.762 INFO checking muktakosh/unicorn against master#ede55518431154bc761f7b2438cce9078c162700 for pr-53707
Aug 29 17:58:52.762 INFO running: cargo +ede55518431154bc761f7b2438cce9078c162700-alt check --frozen --all --all-targets
Aug 29 17:58:52.762 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53707/master#ede55518431154bc761f7b2438cce9078c162700:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53707/worker-1/master#ede55518431154bc761f7b2438cce9078c162700:/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=500" "-e" "CMD=cargo +ede55518431154bc761f7b2438cce9078c162700-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Aug 29 17:58:53.031 INFO blam! c81771ba77106543bc0868bc2a085a77b25462bb4bf38fcc6b5a0d3209833c9e
Aug 29 17:58:53.033 INFO running `"docker" "start" "-a" "c81771ba77106543bc0868bc2a085a77b25462bb4bf38fcc6b5a0d3209833c9e"`
Aug 29 17:58:54.084 INFO kablam!    Compiling unicode-xid v0.0.3
Aug 29 17:58:54.088 INFO kablam!    Compiling libc v0.2.18
Aug 29 17:58:54.089 INFO kablam!    Compiling quote v0.3.10
Aug 29 17:58:54.114 INFO kablam!     Checking unicode-normalization v0.1.3
Aug 29 17:58:54.115 INFO kablam!     Checking serde v0.8.21
Aug 29 17:58:54.115 INFO kablam!     Checking itoa v0.1.1
Aug 29 17:58:54.115 INFO kablam!     Checking dtoa v0.2.2
Aug 29 17:58:54.115 INFO kablam!    Compiling syntex_pos v0.52.0
Aug 29 17:58:55.896 INFO kablam!     Checking unicode-bidi v0.2.4
Aug 29 17:58:55.994 INFO kablam!     Checking net2 v0.2.26
Aug 29 17:58:57.263 INFO kablam!     Checking clap v2.19.2
Aug 29 17:58:59.471 INFO kablam!    Compiling term v0.4.4
Aug 29 17:59:01.610 INFO kablam!     Checking miow v0.1.5
Aug 29 17:59:01.612 INFO kablam!    Compiling syn v0.10.5
Aug 29 17:59:02.252 INFO kablam!     Checking mio v0.5.1
Aug 29 17:59:04.014 INFO kablam!     Checking idna v0.1.0
Aug 29 17:59:11.654 INFO kablam!    Compiling syntex_errors v0.52.0
Aug 29 17:59:14.265 INFO kablam!     Checking url v1.2.4
Aug 29 17:59:24.401 INFO kablam!     Checking ws v0.5.3
Aug 29 17:59:25.622 INFO kablam!    Compiling serde_codegen_internals v0.11.3
Aug 29 17:59:25.972 INFO kablam!    Compiling syntex_syntax v0.52.0
Aug 29 17:59:30.785 INFO kablam!     Checking serde_json v0.8.4
Aug 29 18:00:23.884 INFO kablam!    Compiling syntex v0.52.0
Aug 29 18:00:25.814 INFO kablam!    Compiling serde_codegen v0.8.21
Aug 29 18:00:33.986 INFO kablam!    Compiling libunicorn v0.0.1 (file:///source)
Aug 29 18:00:37.991 INFO kablam! warning: variable does not need to be mutable
Aug 29 18:00:37.991 INFO kablam!   --> src/router.rs:80:21
Aug 29 18:00:37.991 INFO kablam!    |
Aug 29 18:00:37.991 INFO kablam! 80 |         if let Some(mut t) = self.topics.get_mut(topic_id) {
Aug 29 18:00:37.991 INFO kablam!    |                     ----^
Aug 29 18:00:37.991 INFO kablam!    |                     |
Aug 29 18:00:37.991 INFO kablam!    |                     help: remove this `mut`
Aug 29 18:00:37.991 INFO kablam!    |
Aug 29 18:00:37.991 INFO kablam!    = note: #[warn(unused_mut)] on by default
Aug 29 18:00:37.991 INFO kablam! 
Aug 29 18:00:38.034 INFO kablam! warning: variable does not need to be mutable
Aug 29 18:00:38.034 INFO kablam!   --> src/router.rs:80:21
Aug 29 18:00:38.034 INFO kablam!    |
Aug 29 18:00:38.034 INFO kablam! 80 |         if let Some(mut t) = self.topics.get_mut(topic_id) {
Aug 29 18:00:38.034 INFO kablam!    |                     ----^
Aug 29 18:00:38.034 INFO kablam!    |                     |
Aug 29 18:00:38.034 INFO kablam!    |                     help: remove this `mut`
Aug 29 18:00:38.035 INFO kablam!    |
Aug 29 18:00:38.035 INFO kablam!    = note: #[warn(unused_mut)] on by default
Aug 29 18:00:38.035 INFO kablam! 
Aug 29 18:00:39.011 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1m 45s
Aug 29 18:00:39.025 INFO kablam! su: No module specific data is present
Aug 29 18:00:39.459 INFO running `"docker" "rm" "-f" "c81771ba77106543bc0868bc2a085a77b25462bb4bf38fcc6b5a0d3209833c9e"`
Aug 29 18:00:39.589 INFO blam! c81771ba77106543bc0868bc2a085a77b25462bb4bf38fcc6b5a0d3209833c9e