Dec 17 18:51:46.979 INFO checking neosmart/tac against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 18:51:46.979 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-1/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/neosmart/tac:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 18:51:47.333 INFO [stdout] 8bb60a7fac2c0fb7348be31a1c6678712c5ff748ecdc74d0c5942cd7109b01bd
Dec 17 18:51:47.338 INFO running `"docker" "start" "-a" "8bb60a7fac2c0fb7348be31a1c6678712c5ff748ecdc74d0c5942cd7109b01bd"`
Dec 17 18:51:47.980 INFO [stderr]     Checking memmap v0.5.2
Dec 17 18:51:47.980 INFO [stderr]     Checking uuid v0.4.0
Dec 17 18:51:48.434 INFO [stderr]     Checking tac v0.2.3 (/opt/crater/workdir)
Dec 17 18:51:48.641 INFO [stderr] warning: variable does not need to be mutable
Dec 17 18:51:48.641 INFO [stderr]   --> src/main.rs:64:16
Dec 17 18:51:48.642 INFO [stderr]    |
Dec 17 18:51:48.648 INFO [stderr] 64 | fn print_bytes(mut stdout: &mut Stdout, bytes: &[u8]) {
Dec 17 18:51:48.648 INFO [stderr]    |                ----^^^^^^
Dec 17 18:51:48.648 INFO [stderr]    |                |
Dec 17 18:51:48.648 INFO [stderr]    |                help: remove this `mut`
Dec 17 18:51:48.648 INFO [stderr]    |
Dec 17 18:51:48.648 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 17 18:51:48.648 INFO [stderr] 
Dec 17 18:51:48.700 INFO [stderr] warning: variable does not need to be mutable
Dec 17 18:51:48.701 INFO [stderr]   --> src/main.rs:64:16
Dec 17 18:51:48.701 INFO [stderr]    |
Dec 17 18:51:48.701 INFO [stderr] 64 | fn print_bytes(mut stdout: &mut Stdout, bytes: &[u8]) {
Dec 17 18:51:48.701 INFO [stderr]    |                ----^^^^^^
Dec 17 18:51:48.701 INFO [stderr]    |                |
Dec 17 18:51:48.701 INFO [stderr]    |                help: remove this `mut`
Dec 17 18:51:48.701 INFO [stderr]    |
Dec 17 18:51:48.701 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 17 18:51:48.701 INFO [stderr] 
Dec 17 18:51:48.732 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.78s
Dec 17 18:51:49.086 INFO running `"docker" "inspect" "8bb60a7fac2c0fb7348be31a1c6678712c5ff748ecdc74d0c5942cd7109b01bd"`
Dec 17 18:51:49.202 INFO running `"docker" "rm" "-f" "8bb60a7fac2c0fb7348be31a1c6678712c5ff748ecdc74d0c5942cd7109b01bd"`
Dec 17 18:51:49.307 INFO [stdout] 8bb60a7fac2c0fb7348be31a1c6678712c5ff748ecdc74d0c5942cd7109b01bd