Dec 11 12:47:47.310 INFO checking neosmart/tac against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 12:47:47.310 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 11 12:47:47.603 INFO [stdout] d1b2b7e191c37d8aada6a0dbd06312282fc3a74437507f40d076a0d34ff8d1cd
Dec 11 12:47:47.605 INFO running `"docker" "start" "-a" "d1b2b7e191c37d8aada6a0dbd06312282fc3a74437507f40d076a0d34ff8d1cd"`
Dec 11 12:47:48.316 INFO [stderr] usermod: no changes
Dec 11 12:47:48.390 INFO [stderr]     Checking memmap v0.5.2
Dec 11 12:47:48.396 INFO [stderr]     Checking uuid v0.4.0
Dec 11 12:47:49.042 INFO [stderr]     Checking tac v0.2.3 (/source)
Dec 11 12:47:49.394 INFO [stderr] warning: variable does not need to be mutable
Dec 11 12:47:49.394 INFO [stderr]   --> src/main.rs:64:16
Dec 11 12:47:49.394 INFO [stderr]    |
Dec 11 12:47:49.394 INFO [stderr] 64 | fn print_bytes(mut stdout: &mut Stdout, bytes: &[u8]) {
Dec 11 12:47:49.394 INFO [stderr]    |                ----^^^^^^
Dec 11 12:47:49.394 INFO [stderr]    |                |
Dec 11 12:47:49.394 INFO [stderr]    |                help: remove this `mut`
Dec 11 12:47:49.394 INFO [stderr]    |
Dec 11 12:47:49.394 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 11 12:47:49.394 INFO [stderr] 
Dec 11 12:47:49.428 INFO [stderr] warning: variable does not need to be mutable
Dec 11 12:47:49.429 INFO [stderr]   --> src/main.rs:64:16
Dec 11 12:47:49.429 INFO [stderr]    |
Dec 11 12:47:49.429 INFO [stderr] 64 | fn print_bytes(mut stdout: &mut Stdout, bytes: &[u8]) {
Dec 11 12:47:49.430 INFO [stderr]    |                ----^^^^^^
Dec 11 12:47:49.430 INFO [stderr]    |                |
Dec 11 12:47:49.430 INFO [stderr]    |                help: remove this `mut`
Dec 11 12:47:49.430 INFO [stderr]    |
Dec 11 12:47:49.431 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 11 12:47:49.431 INFO [stderr] 
Dec 11 12:47:49.453 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.11s
Dec 11 12:47:49.456 INFO [stderr] su: No module specific data is present
Dec 11 12:47:49.754 INFO running `"docker" "inspect" "d1b2b7e191c37d8aada6a0dbd06312282fc3a74437507f40d076a0d34ff8d1cd"`
Dec 11 12:47:49.880 INFO running `"docker" "rm" "-f" "d1b2b7e191c37d8aada6a0dbd06312282fc3a74437507f40d076a0d34ff8d1cd"`
Dec 11 12:47:50.028 INFO [stdout] d1b2b7e191c37d8aada6a0dbd06312282fc3a74437507f40d076a0d34ff8d1cd