Nov 06 17:14:10.710 INFO checking muktakosh/unicorn against master#24e66c28980442a48d9458f1a4f9b76cc722dc8a for pr-55687
Nov 06 17:14:10.710 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55687/worker-4/master#24e66c28980442a48d9458f1a4f9b76cc722dc8a:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-55687/master#24e66c28980442a48d9458f1a4f9b76cc722dc8a:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +24e66c28980442a48d9458f1a4f9b76cc722dc8a-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 06 17:14:11.050 INFO blam! ebe92559fac9ca34eb3e5614fadce763b59f842774545c28920b8f86bf219dd4
Nov 06 17:14:11.052 INFO running `"docker" "start" "-a" "ebe92559fac9ca34eb3e5614fadce763b59f842774545c28920b8f86bf219dd4"`
Nov 06 17:14:12.963 INFO kablam! usermod: no changes
Nov 06 17:14:13.257 INFO kablam!    Compiling rustc-serialize v0.3.22
Nov 06 17:14:13.258 INFO kablam!    Compiling quote v0.3.10
Nov 06 17:14:13.266 INFO kablam!     Checking slab v0.1.3
Nov 06 17:14:13.268 INFO kablam!     Checking bytes v0.3.0
Nov 06 17:14:13.270 INFO kablam!     Checking dtoa v0.2.2
Nov 06 17:14:13.272 INFO kablam!     Checking serde v0.8.21
Nov 06 17:14:13.274 INFO kablam!     Checking itoa v0.1.1
Nov 06 17:14:13.275 INFO kablam!    Compiling ws2_32-sys v0.2.1
Nov 06 17:14:15.651 INFO kablam!     Checking net2 v0.2.26
Nov 06 17:14:15.825 INFO kablam!     Checking nix v0.5.1
Nov 06 17:14:16.302 INFO kablam!     Checking clap v2.19.2
Nov 06 17:14:19.377 INFO kablam!    Compiling term v0.4.4
Nov 06 17:14:19.477 INFO kablam!    Compiling syn v0.10.5
Nov 06 17:14:19.686 INFO kablam!     Checking miow v0.1.5
Nov 06 17:14:29.806 INFO kablam!     Checking mio v0.5.1
Nov 06 17:14:35.912 INFO kablam!     Checking serde_json v0.8.4
Nov 06 17:14:36.307 INFO kablam!    Compiling serde_codegen_internals v0.11.3
Nov 06 17:14:36.824 INFO kablam!     Checking ws v0.5.3
Nov 06 17:14:41.566 INFO kablam!    Compiling syntex_pos v0.52.0
Nov 06 17:14:43.424 INFO kablam!    Compiling syntex_errors v0.52.0
Nov 06 17:14:47.397 INFO kablam!    Compiling syntex_syntax v0.52.0
Nov 06 17:15:36.366 INFO kablam!    Compiling syntex v0.52.0
Nov 06 17:15:38.059 INFO kablam!    Compiling serde_codegen v0.8.21
Nov 06 17:15:44.818 INFO kablam!    Compiling libunicorn v0.0.1 (/source)
Nov 06 17:15:50.444 INFO kablam! warning: variable does not need to be mutable
Nov 06 17:15:50.444 INFO kablam!   --> src/router.rs:80:21
Nov 06 17:15:50.444 INFO kablam!    |
Nov 06 17:15:50.444 INFO kablam! 80 |         if let Some(mut t) = self.topics.get_mut(topic_id) {
Nov 06 17:15:50.444 INFO kablam!    |                     ----^
Nov 06 17:15:50.444 INFO kablam!    |                     |
Nov 06 17:15:50.444 INFO kablam!    |                     help: remove this `mut`
Nov 06 17:15:50.444 INFO kablam!    |
Nov 06 17:15:50.444 INFO kablam!    = note: #[warn(unused_mut)] on by default
Nov 06 17:15:50.444 INFO kablam! 
Nov 06 17:15:50.494 INFO kablam! warning: variable does not need to be mutable
Nov 06 17:15:50.494 INFO kablam!   --> src/router.rs:80:21
Nov 06 17:15:50.494 INFO kablam!    |
Nov 06 17:15:50.494 INFO kablam! 80 |         if let Some(mut t) = self.topics.get_mut(topic_id) {
Nov 06 17:15:50.494 INFO kablam!    |                     ----^
Nov 06 17:15:50.494 INFO kablam!    |                     |
Nov 06 17:15:50.494 INFO kablam!    |                     help: remove this `mut`
Nov 06 17:15:50.494 INFO kablam!    |
Nov 06 17:15:50.494 INFO kablam!    = note: #[warn(unused_mut)] on by default
Nov 06 17:15:50.494 INFO kablam! 
Nov 06 17:15:52.556 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1m 39s
Nov 06 17:15:52.572 INFO kablam! su: No module specific data is present
Nov 06 17:15:52.958 INFO running `"docker" "rm" "-f" "ebe92559fac9ca34eb3e5614fadce763b59f842774545c28920b8f86bf219dd4"`
Nov 06 17:15:53.203 INFO blam! ebe92559fac9ca34eb3e5614fadce763b59f842774545c28920b8f86bf219dd4