Dec 12 08:49:21.014 INFO checking rotor-carbon-0.7.0 against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 08:49:21.014 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-0/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/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 08:49:21.468 INFO [stdout] 0b76d3e719593ae886ae08fb4d55142125b41a876c28805bfa0e9e6f57b2acad
Dec 12 08:49:21.474 INFO running `"docker" "start" "-a" "0b76d3e719593ae886ae08fb4d55142125b41a876c28805bfa0e9e6f57b2acad"`
Dec 12 08:49:23.296 INFO [stderr] usermod: no changes
Dec 12 08:49:23.479 INFO [stderr]     Checking rotor-carbon v0.7.0 (/source)
Dec 12 08:49:27.251 INFO [stderr] warning: variable does not need to be mutable
Dec 12 08:49:27.251 INFO [stderr]   --> src/sender.rs:19:17
Dec 12 08:49:27.251 INFO [stderr]    |
Dec 12 08:49:27.251 INFO [stderr] 19 |             let mut buf = trans.output();
Dec 12 08:49:27.251 INFO [stderr]    |                 ----^^^
Dec 12 08:49:27.251 INFO [stderr]    |                 |
Dec 12 08:49:27.251 INFO [stderr]    |                 help: remove this `mut`
Dec 12 08:49:27.251 INFO [stderr]    |
Dec 12 08:49:27.251 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 12 08:49:27.251 INFO [stderr] 
Dec 12 08:49:27.268 INFO [stderr] warning: variable does not need to be mutable
Dec 12 08:49:27.268 INFO [stderr]   --> src/sender.rs:19:17
Dec 12 08:49:27.268 INFO [stderr]    |
Dec 12 08:49:27.268 INFO [stderr] 19 |             let mut buf = trans.output();
Dec 12 08:49:27.268 INFO [stderr]    |                 ----^^^
Dec 12 08:49:27.268 INFO [stderr]    |                 |
Dec 12 08:49:27.268 INFO [stderr]    |                 help: remove this `mut`
Dec 12 08:49:27.268 INFO [stderr] 
Dec 12 08:49:27.271 INFO [stderr] warning: variable does not need to be mutable
Dec 12 08:49:27.271 INFO [stderr]   --> src/sender.rs:32:17
Dec 12 08:49:27.271 INFO [stderr]    |
Dec 12 08:49:27.271 INFO [stderr] 32 |             let mut buf = trans.output();
Dec 12 08:49:27.271 INFO [stderr]    |                 ----^^^
Dec 12 08:49:27.271 INFO [stderr]    |                 |
Dec 12 08:49:27.271 INFO [stderr]    |                 help: remove this `mut`
Dec 12 08:49:27.271 INFO [stderr] 
Dec 12 08:49:27.790 INFO [stderr] warning: variable does not need to be mutable
Dec 12 08:49:27.790 INFO [stderr]   --> src/sender.rs:19:17
Dec 12 08:49:27.790 INFO [stderr]    |
Dec 12 08:49:27.790 INFO [stderr] 19 |             let mut buf = trans.output();
Dec 12 08:49:27.790 INFO [stderr]    |                 ----^^^
Dec 12 08:49:27.790 INFO [stderr]    |                 |
Dec 12 08:49:27.790 INFO [stderr]    |                 help: remove this `mut`
Dec 12 08:49:27.791 INFO [stderr]    |
Dec 12 08:49:27.791 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 12 08:49:27.791 INFO [stderr] 
Dec 12 08:49:27.791 INFO [stderr] warning: variable does not need to be mutable
Dec 12 08:49:27.791 INFO [stderr]   --> src/sender.rs:19:17
Dec 12 08:49:27.791 INFO [stderr]    |
Dec 12 08:49:27.791 INFO [stderr] 19 |             let mut buf = trans.output();
Dec 12 08:49:27.791 INFO [stderr]    |                 ----^^^
Dec 12 08:49:27.791 INFO [stderr]    |                 |
Dec 12 08:49:27.792 INFO [stderr]    |                 help: remove this `mut`
Dec 12 08:49:27.792 INFO [stderr] 
Dec 12 08:49:27.792 INFO [stderr] warning: variable does not need to be mutable
Dec 12 08:49:27.792 INFO [stderr]   --> src/sender.rs:32:17
Dec 12 08:49:27.792 INFO [stderr]    |
Dec 12 08:49:27.792 INFO [stderr] 32 |             let mut buf = trans.output();
Dec 12 08:49:27.792 INFO [stderr]    |                 ----^^^
Dec 12 08:49:27.792 INFO [stderr]    |                 |
Dec 12 08:49:27.792 INFO [stderr]    |                 help: remove this `mut`
Dec 12 08:49:27.793 INFO [stderr] 
Dec 12 08:49:30.076 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.75s
Dec 12 08:49:30.080 INFO [stderr] su: No module specific data is present
Dec 12 08:49:30.614 INFO running `"docker" "inspect" "0b76d3e719593ae886ae08fb4d55142125b41a876c28805bfa0e9e6f57b2acad"`
Dec 12 08:49:30.824 INFO running `"docker" "rm" "-f" "0b76d3e719593ae886ae08fb4d55142125b41a876c28805bfa0e9e6f57b2acad"`
Dec 12 08:49:31.160 INFO [stdout] 0b76d3e719593ae886ae08fb4d55142125b41a876c28805bfa0e9e6f57b2acad