Dec 12 10:37:47.942 INFO checking ogg_vorbis_ref-0.0.3 against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 10:37:47.942 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-3/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/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 10:37:48.324 INFO [stdout] 4e794807c23c2b8f9cec0e1deb8fdbb6406db94311238fc41ff040ad955b53d6
Dec 12 10:37:48.326 INFO running `"docker" "start" "-a" "4e794807c23c2b8f9cec0e1deb8fdbb6406db94311238fc41ff040ad955b53d6"`
Dec 12 10:37:50.144 INFO [stderr] usermod: no changes
Dec 12 10:37:50.254 INFO [stderr]     Checking ogg_vorbis_ref v0.0.3 (/source)
Dec 12 10:37:51.136 INFO [stderr] warning: variable does not need to be mutable
Dec 12 10:37:51.136 INFO [stderr]   --> src/lib.rs:62:17
Dec 12 10:37:51.136 INFO [stderr]    |
Dec 12 10:37:51.136 INFO [stderr] 62 |             let mut stream = self.stream.as_mut().unwrap();
Dec 12 10:37:51.136 INFO [stderr]    |                 ----^^^^^^
Dec 12 10:37:51.136 INFO [stderr]    |                 |
Dec 12 10:37:51.136 INFO [stderr]    |                 help: remove this `mut`
Dec 12 10:37:51.136 INFO [stderr]    |
Dec 12 10:37:51.136 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 12 10:37:51.136 INFO [stderr] 
Dec 12 10:37:51.141 INFO [stderr] warning: variable does not need to be mutable
Dec 12 10:37:51.141 INFO [stderr]    --> src/lib.rs:177:13
Dec 12 10:37:51.141 INFO [stderr]     |
Dec 12 10:37:51.141 INFO [stderr] 177 |         let mut synth = self.synth.as_mut().unwrap();
Dec 12 10:37:51.141 INFO [stderr]     |             ----^^^^^
Dec 12 10:37:51.141 INFO [stderr]     |             |
Dec 12 10:37:51.141 INFO [stderr]     |             help: remove this `mut`
Dec 12 10:37:51.141 INFO [stderr] 
Dec 12 10:37:51.245 INFO [stderr] warning: variable does not need to be mutable
Dec 12 10:37:51.245 INFO [stderr]   --> src/lib.rs:62:17
Dec 12 10:37:51.245 INFO [stderr]    |
Dec 12 10:37:51.245 INFO [stderr] 62 |             let mut stream = self.stream.as_mut().unwrap();
Dec 12 10:37:51.245 INFO [stderr]    |                 ----^^^^^^
Dec 12 10:37:51.245 INFO [stderr]    |                 |
Dec 12 10:37:51.245 INFO [stderr]    |                 help: remove this `mut`
Dec 12 10:37:51.245 INFO [stderr]    |
Dec 12 10:37:51.245 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 12 10:37:51.245 INFO [stderr] 
Dec 12 10:37:51.252 INFO [stderr] warning: variable does not need to be mutable
Dec 12 10:37:51.252 INFO [stderr]    --> src/lib.rs:177:13
Dec 12 10:37:51.252 INFO [stderr]     |
Dec 12 10:37:51.252 INFO [stderr] 177 |         let mut synth = self.synth.as_mut().unwrap();
Dec 12 10:37:51.252 INFO [stderr]     |             ----^^^^^
Dec 12 10:37:51.252 INFO [stderr]     |             |
Dec 12 10:37:51.252 INFO [stderr]     |             help: remove this `mut`
Dec 12 10:37:51.252 INFO [stderr] 
Dec 12 10:37:51.292 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.11s
Dec 12 10:37:51.296 INFO [stderr] su: No module specific data is present
Dec 12 10:37:52.502 INFO running `"docker" "inspect" "4e794807c23c2b8f9cec0e1deb8fdbb6406db94311238fc41ff040ad955b53d6"`
Dec 12 10:37:52.823 INFO running `"docker" "rm" "-f" "4e794807c23c2b8f9cec0e1deb8fdbb6406db94311238fc41ff040ad955b53d6"`
Dec 12 10:37:53.071 INFO [stdout] 4e794807c23c2b8f9cec0e1deb8fdbb6406db94311238fc41ff040ad955b53d6