Oct 12 16:57:09.269 INFO checking muktakosh/unicorn against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 12 16:57:09.271 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-6/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-6/pr-54977/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/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 +4021bd0b3c5815b087d6db10ce461e7e4854ade7-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"`
Oct 12 16:57:09.768 INFO blam! f82c1453fda150fa62cd9fc4485827ceb65e99d9b9e1925d231a2908e32f0652
Oct 12 16:57:09.781 INFO running `"docker" "start" "-a" "f82c1453fda150fa62cd9fc4485827ceb65e99d9b9e1925d231a2908e32f0652"`
Oct 12 16:57:11.244 INFO kablam! usermod: no changes
Oct 12 16:57:11.521 INFO kablam!    Compiling rustc-serialize v0.3.22
Oct 12 16:57:11.522 INFO kablam!     Checking bytes v0.3.0
Oct 12 16:57:11.522 INFO kablam!     Checking slab v0.1.3
Oct 12 16:57:11.522 INFO kablam!     Checking serde v0.8.21
Oct 12 16:57:11.523 INFO kablam!    Compiling ws2_32-sys v0.2.1
Oct 12 16:57:11.537 INFO kablam!     Checking net2 v0.2.26
Oct 12 16:57:11.537 INFO kablam!     Checking nix v0.5.1
Oct 12 16:57:11.537 INFO kablam!    Compiling serde_codegen_internals v0.11.3
Oct 12 16:57:13.460 INFO kablam!     Checking url v1.2.4
Oct 12 16:57:13.964 INFO kablam!    Compiling term v0.4.4
Oct 12 16:57:14.369 INFO kablam!     Checking time v0.1.35
Oct 12 16:57:18.810 INFO kablam!     Checking miow v0.1.5
Oct 12 16:57:27.424 INFO kablam!     Checking mio v0.5.1
Oct 12 16:57:29.242 INFO kablam!     Checking ws v0.5.3
Oct 12 16:57:32.974 INFO kablam!     Checking serde_json v0.8.4
Oct 12 16:57:33.005 INFO kablam!    Compiling syntex_pos v0.52.0
Oct 12 16:57:34.845 INFO kablam!    Compiling syntex_errors v0.52.0
Oct 12 16:57:38.771 INFO kablam!    Compiling syntex_syntax v0.52.0
Oct 12 16:58:28.065 INFO kablam!    Compiling syntex v0.52.0
Oct 12 16:58:29.710 INFO kablam!    Compiling serde_codegen v0.8.21
Oct 12 16:58:36.828 INFO kablam!    Compiling libunicorn v0.0.1 (/source)
Oct 12 16:58:41.662 INFO kablam! warning: variable does not need to be mutable
Oct 12 16:58:41.662 INFO kablam!   --> src/router.rs:80:21
Oct 12 16:58:41.662 INFO kablam!    |
Oct 12 16:58:41.662 INFO kablam! 80 |         if let Some(mut t) = self.topics.get_mut(topic_id) {
Oct 12 16:58:41.662 INFO kablam!    |                     ----^
Oct 12 16:58:41.662 INFO kablam!    |                     |
Oct 12 16:58:41.662 INFO kablam!    |                     help: remove this `mut`
Oct 12 16:58:41.662 INFO kablam!    |
Oct 12 16:58:41.662 INFO kablam!    = note: #[warn(unused_mut)] on by default
Oct 12 16:58:41.662 INFO kablam! 
Oct 12 16:58:41.979 INFO kablam! warning: variable does not need to be mutable
Oct 12 16:58:41.979 INFO kablam!   --> src/router.rs:80:21
Oct 12 16:58:41.979 INFO kablam!    |
Oct 12 16:58:41.979 INFO kablam! 80 |         if let Some(mut t) = self.topics.get_mut(topic_id) {
Oct 12 16:58:41.979 INFO kablam!    |                     ----^
Oct 12 16:58:41.979 INFO kablam!    |                     |
Oct 12 16:58:41.979 INFO kablam!    |                     help: remove this `mut`
Oct 12 16:58:41.979 INFO kablam!    |
Oct 12 16:58:41.979 INFO kablam!    = note: #[warn(unused_mut)] on by default
Oct 12 16:58:41.979 INFO kablam! 
Oct 12 16:58:43.751 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1m 32s
Oct 12 16:58:43.767 INFO kablam! su: No module specific data is present
Oct 12 16:58:44.709 INFO running `"docker" "rm" "-f" "f82c1453fda150fa62cd9fc4485827ceb65e99d9b9e1925d231a2908e32f0652"`
Oct 12 16:58:45.096 INFO blam! f82c1453fda150fa62cd9fc4485827ceb65e99d9b9e1925d231a2908e32f0652