Dec 12 14:37:31.343 INFO checking genio-0.1.0 against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 14:37:31.343 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 14:37:31.906 INFO [stdout] d875685b0656119ec8176794e84d8a57d23b5345bae0f1ddb9f3e5e0f7d4878b
Dec 12 14:37:31.910 INFO running `"docker" "start" "-a" "d875685b0656119ec8176794e84d8a57d23b5345bae0f1ddb9f3e5e0f7d4878b"`
Dec 12 14:37:33.936 INFO [stderr] usermod: no changes
Dec 12 14:37:33.988 INFO [stderr]     Checking genio v0.1.0 (/source)
Dec 12 14:37:34.666 INFO [stderr] warning: variable does not need to be mutable
Dec 12 14:37:34.666 INFO [stderr]   --> src/util/repeat_bytes.rs:13:24
Dec 12 14:37:34.666 INFO [stderr]    |
Dec 12 14:37:34.666 INFO [stderr] 13 |     fn read(&mut self, mut buf: &mut [u8]) -> Result<usize, Self::ReadError> {
Dec 12 14:37:34.666 INFO [stderr]    |                        ----^^^
Dec 12 14:37:34.666 INFO [stderr]    |                        |
Dec 12 14:37:34.666 INFO [stderr]    |                        help: remove this `mut`
Dec 12 14:37:34.666 INFO [stderr]    |
Dec 12 14:37:34.666 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 12 14:37:34.666 INFO [stderr] 
Dec 12 14:37:35.044 INFO [stderr] warning: variable does not need to be mutable
Dec 12 14:37:35.044 INFO [stderr]   --> src/util/repeat_bytes.rs:13:24
Dec 12 14:37:35.044 INFO [stderr]    |
Dec 12 14:37:35.044 INFO [stderr] 13 |     fn read(&mut self, mut buf: &mut [u8]) -> Result<usize, Self::ReadError> {
Dec 12 14:37:35.044 INFO [stderr]    |                        ----^^^
Dec 12 14:37:35.044 INFO [stderr]    |                        |
Dec 12 14:37:35.044 INFO [stderr]    |                        help: remove this `mut`
Dec 12 14:37:35.044 INFO [stderr]    |
Dec 12 14:37:35.044 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 12 14:37:35.044 INFO [stderr] 
Dec 12 14:37:35.101 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.13s
Dec 12 14:37:35.105 INFO [stderr] su: No module specific data is present
Dec 12 14:37:35.958 INFO running `"docker" "inspect" "d875685b0656119ec8176794e84d8a57d23b5345bae0f1ddb9f3e5e0f7d4878b"`
Dec 12 14:37:36.440 INFO running `"docker" "rm" "-f" "d875685b0656119ec8176794e84d8a57d23b5345bae0f1ddb9f3e5e0f7d4878b"`
Dec 12 14:37:36.808 INFO [stdout] d875685b0656119ec8176794e84d8a57d23b5345bae0f1ddb9f3e5e0f7d4878b