Dec 11 18:22:49.973 INFO checking fneddy/rat12 against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 18:22:49.973 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-3/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/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 +aa9aa79c3c583aab59ac9134542d60a780c35e2e-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 11 18:22:50.636 INFO [stdout] 9e6e8c8d2dfba79217f63f32158e550bb7e23d872ae6b0328a82a6b869df1492
Dec 11 18:22:50.637 INFO running `"docker" "start" "-a" "9e6e8c8d2dfba79217f63f32158e550bb7e23d872ae6b0328a82a6b869df1492"`
Dec 11 18:22:51.876 INFO [stderr] usermod: no changes
Dec 11 18:22:51.933 INFO [stderr]     Checking rat12 v0.1.0 (/source)
Dec 11 18:22:52.508 INFO [stderr] warning: unused variable: `buf`
Dec 11 18:22:52.508 INFO [stderr]   --> src/cluster.rs:60:25
Dec 11 18:22:52.508 INFO [stderr]    |
Dec 11 18:22:52.508 INFO [stderr] 60 |     fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
Dec 11 18:22:52.508 INFO [stderr]    |                         ^^^ help: consider using `_buf` instead
Dec 11 18:22:52.508 INFO [stderr]    |
Dec 11 18:22:52.508 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 11 18:22:52.508 INFO [stderr] 
Dec 11 18:22:52.544 INFO [stderr] warning: variable does not need to be mutable
Dec 11 18:22:52.544 INFO [stderr]   --> src/cluster.rs:31:16
Dec 11 18:22:52.544 INFO [stderr]    |
Dec 11 18:22:52.544 INFO [stderr] 31 |     pub fn new(mut descriptor: Arc<RwLock<T>>,
Dec 11 18:22:52.544 INFO [stderr]    |                ----^^^^^^^^^^
Dec 11 18:22:52.544 INFO [stderr]    |                |
Dec 11 18:22:52.544 INFO [stderr]    |                help: remove this `mut`
Dec 11 18:22:52.544 INFO [stderr]    |
Dec 11 18:22:52.544 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 11 18:22:52.544 INFO [stderr] 
Dec 11 18:22:52.804 INFO [stderr] warning: unused variable: `buf`
Dec 11 18:22:52.804 INFO [stderr]   --> src/cluster.rs:60:25
Dec 11 18:22:52.804 INFO [stderr]    |
Dec 11 18:22:52.804 INFO [stderr] 60 |     fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
Dec 11 18:22:52.804 INFO [stderr]    |                         ^^^ help: consider using `_buf` instead
Dec 11 18:22:52.804 INFO [stderr]    |
Dec 11 18:22:52.804 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 11 18:22:52.804 INFO [stderr] 
Dec 11 18:22:52.852 INFO [stderr] warning: variable does not need to be mutable
Dec 11 18:22:52.852 INFO [stderr]   --> src/cluster.rs:31:16
Dec 11 18:22:52.852 INFO [stderr]    |
Dec 11 18:22:52.852 INFO [stderr] 31 |     pub fn new(mut descriptor: Arc<RwLock<T>>,
Dec 11 18:22:52.852 INFO [stderr]    |                ----^^^^^^^^^^
Dec 11 18:22:52.852 INFO [stderr]    |                |
Dec 11 18:22:52.852 INFO [stderr]    |                help: remove this `mut`
Dec 11 18:22:52.852 INFO [stderr]    |
Dec 11 18:22:52.852 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 11 18:22:52.852 INFO [stderr] 
Dec 11 18:22:53.218 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.31s
Dec 11 18:22:53.228 INFO [stderr] su: No module specific data is present
Dec 11 18:22:54.100 INFO running `"docker" "inspect" "9e6e8c8d2dfba79217f63f32158e550bb7e23d872ae6b0328a82a6b869df1492"`
Dec 11 18:22:54.530 INFO running `"docker" "rm" "-f" "9e6e8c8d2dfba79217f63f32158e550bb7e23d872ae6b0328a82a6b869df1492"`
Dec 11 18:22:54.814 INFO [stdout] 9e6e8c8d2dfba79217f63f32158e550bb7e23d872ae6b0328a82a6b869df1492