Dec 12 09:40:15.789 INFO checking pubsub-0.2.3 against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 09:40:15.790 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-6/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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"`
Dec 12 09:40:16.256 INFO [stdout] 81420ccd02497ffdcf483526339d732cd0e9810df521a4734292e1a04b7ed35c
Dec 12 09:40:16.260 INFO running `"docker" "start" "-a" "81420ccd02497ffdcf483526339d732cd0e9810df521a4734292e1a04b7ed35c"`
Dec 12 09:40:17.566 INFO [stderr] usermod: no changes
Dec 12 09:40:17.622 INFO [stderr]     Checking threadpool v0.1.4
Dec 12 09:40:18.204 INFO [stderr]     Checking pubsub v0.2.3 (/source)
Dec 12 09:40:19.249 INFO [stderr] warning: variable does not need to be mutable
Dec 12 09:40:19.249 INFO [stderr]    --> src/lib.rs:192:10
Dec 12 09:40:19.249 INFO [stderr]     |
Dec 12 09:40:19.249 INFO [stderr] 192 |                     let mut func = guard.deref_mut();
Dec 12 09:40:19.249 INFO [stderr]     |                         ----^^^^
Dec 12 09:40:19.249 INFO [stderr]     |                         |
Dec 12 09:40:19.249 INFO [stderr]     |                         help: remove this `mut`
Dec 12 09:40:19.249 INFO [stderr]     |
Dec 12 09:40:19.249 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 12 09:40:19.249 INFO [stderr] 
Dec 12 09:40:19.464 INFO [stderr] warning: variable does not need to be mutable
Dec 12 09:40:19.464 INFO [stderr]    --> src/lib.rs:192:10
Dec 12 09:40:19.464 INFO [stderr]     |
Dec 12 09:40:19.464 INFO [stderr] 192 |                     let mut func = guard.deref_mut();
Dec 12 09:40:19.464 INFO [stderr]     |                         ----^^^^
Dec 12 09:40:19.464 INFO [stderr]     |                         |
Dec 12 09:40:19.464 INFO [stderr]     |                         help: remove this `mut`
Dec 12 09:40:19.464 INFO [stderr]     |
Dec 12 09:40:19.464 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 12 09:40:19.464 INFO [stderr] 
Dec 12 09:40:19.533 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.93s
Dec 12 09:40:19.535 INFO [stderr] su: No module specific data is present
Dec 12 09:40:20.754 INFO running `"docker" "inspect" "81420ccd02497ffdcf483526339d732cd0e9810df521a4734292e1a04b7ed35c"`
Dec 12 09:40:21.032 INFO running `"docker" "rm" "-f" "81420ccd02497ffdcf483526339d732cd0e9810df521a4734292e1a04b7ed35c"`
Dec 12 09:40:21.319 INFO [stdout] 81420ccd02497ffdcf483526339d732cd0e9810df521a4734292e1a04b7ed35c