Nov 29 21:48:21.005 INFO checking muktakosh/unicorn against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Nov 29 21:48:21.005 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-0/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56323/try#32252761328f59ccfadb1bafb8148c685bc830b3:/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 +32252761328f59ccfadb1bafb8148c685bc830b3-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 29 21:48:21.498 INFO [stdout] 03d03154a4d68ac4f1dcc0996b7b904b49b826f42047ef51624386b6c3fcb629
Nov 29 21:48:21.500 INFO running `"docker" "start" "-a" "03d03154a4d68ac4f1dcc0996b7b904b49b826f42047ef51624386b6c3fcb629"`
Nov 29 21:48:22.329 INFO [stderr] usermod: no changes
Nov 29 21:48:22.591 INFO [stderr]    Compiling quote v0.3.10
Nov 29 21:48:22.602 INFO [stderr]     Checking serde v0.8.21
Nov 29 21:48:22.603 INFO [stderr]     Checking strsim v0.5.2
Nov 29 21:48:22.603 INFO [stderr]    Compiling syntex_pos v0.52.0
Nov 29 21:48:22.603 INFO [stderr]     Checking net2 v0.2.26
Nov 29 21:48:22.603 INFO [stderr]     Checking nix v0.5.1
Nov 29 21:48:22.603 INFO [stderr]    Compiling term v0.4.4
Nov 29 21:48:24.740 INFO [stderr]     Checking clap v2.19.2
Nov 29 21:48:25.276 INFO [stderr]     Checking miow v0.1.5
Nov 29 21:48:27.128 INFO [stderr]    Compiling syn v0.10.5
Nov 29 21:48:34.030 INFO [stderr]    Compiling syntex_errors v0.52.0
Nov 29 21:48:37.157 INFO [stderr]     Checking mio v0.5.1
Nov 29 21:48:43.786 INFO [stderr]     Checking ws v0.5.3
Nov 29 21:48:47.702 INFO [stderr]    Compiling syntex_syntax v0.52.0
Nov 29 21:48:48.202 INFO [stderr]    Compiling serde_codegen_internals v0.11.3
Nov 29 21:48:53.421 INFO [stderr]     Checking serde_json v0.8.4
Nov 29 21:49:39.305 INFO [stderr]    Compiling syntex v0.52.0
Nov 29 21:49:41.068 INFO [stderr]    Compiling serde_codegen v0.8.21
Nov 29 21:49:47.848 INFO [stderr]    Compiling libunicorn v0.0.1 (/source)
Nov 29 21:49:53.152 INFO [stderr] warning: variable does not need to be mutable
Nov 29 21:49:53.152 INFO [stderr]   --> src/router.rs:80:21
Nov 29 21:49:53.153 INFO [stderr]    |
Nov 29 21:49:53.153 INFO [stderr] 80 |         if let Some(mut t) = self.topics.get_mut(topic_id) {
Nov 29 21:49:53.153 INFO [stderr]    |                     ----^
Nov 29 21:49:53.153 INFO [stderr]    |                     |
Nov 29 21:49:53.153 INFO [stderr]    |                     help: remove this `mut`
Nov 29 21:49:53.153 INFO [stderr]    |
Nov 29 21:49:53.153 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 29 21:49:53.153 INFO [stderr] 
Nov 29 21:49:53.789 INFO [stderr] warning: variable does not need to be mutable
Nov 29 21:49:53.789 INFO [stderr]   --> src/router.rs:80:21
Nov 29 21:49:53.789 INFO [stderr]    |
Nov 29 21:49:53.789 INFO [stderr] 80 |         if let Some(mut t) = self.topics.get_mut(topic_id) {
Nov 29 21:49:53.789 INFO [stderr]    |                     ----^
Nov 29 21:49:53.789 INFO [stderr]    |                     |
Nov 29 21:49:53.789 INFO [stderr]    |                     help: remove this `mut`
Nov 29 21:49:53.789 INFO [stderr]    |
Nov 29 21:49:53.789 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 29 21:49:53.789 INFO [stderr] 
Nov 29 21:49:55.388 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 33s
Nov 29 21:49:55.399 INFO [stderr] su: No module specific data is present
Nov 29 21:49:56.851 INFO running `"docker" "inspect" "03d03154a4d68ac4f1dcc0996b7b904b49b826f42047ef51624386b6c3fcb629"`
Nov 29 21:49:57.182 INFO running `"docker" "rm" "-f" "03d03154a4d68ac4f1dcc0996b7b904b49b826f42047ef51624386b6c3fcb629"`
Nov 29 21:49:57.508 INFO [stdout] 03d03154a4d68ac4f1dcc0996b7b904b49b826f42047ef51624386b6c3fcb629