Dec 17 14:21:58.452 INFO checking suttung3r/rustechoserver against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 14:21:58.452 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-0/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/suttung3r/rustechoserver:/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 14:21:58.882 INFO [stdout] ed5eb91864873472802f981e1cd66566138b1b9c37399978cbaee69df821b0da
Dec 17 14:21:58.884 INFO running `"docker" "start" "-a" "ed5eb91864873472802f981e1cd66566138b1b9c37399978cbaee69df821b0da"`
Dec 17 14:22:00.428 INFO [stderr]     Checking socket_test v0.1.0 (/opt/crater/workdir)
Dec 17 14:22:00.619 INFO [stderr] warning: unused variable: `res`
Dec 17 14:22:00.619 INFO [stderr]   --> src/main.rs:42:14
Dec 17 14:22:00.619 INFO [stderr]    |
Dec 17 14:22:00.619 INFO [stderr] 42 |           Ok(res) => {}
Dec 17 14:22:00.619 INFO [stderr]    |              ^^^ help: consider using `_res` instead
Dec 17 14:22:00.619 INFO [stderr]    |
Dec 17 14:22:00.619 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 17 14:22:00.619 INFO [stderr] 
Dec 17 14:22:00.749 INFO [stderr] warning: unused variable: `res`
Dec 17 14:22:00.750 INFO [stderr]   --> src/main.rs:42:14
Dec 17 14:22:00.750 INFO [stderr]    |
Dec 17 14:22:00.750 INFO [stderr] 42 |           Ok(res) => {}
Dec 17 14:22:00.750 INFO [stderr]    |              ^^^ help: consider using `_res` instead
Dec 17 14:22:00.750 INFO [stderr]    |
Dec 17 14:22:00.750 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 17 14:22:00.750 INFO [stderr] 
Dec 17 14:22:00.792 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.39s
Dec 17 14:22:01.486 INFO running `"docker" "inspect" "ed5eb91864873472802f981e1cd66566138b1b9c37399978cbaee69df821b0da"`
Dec 17 14:22:01.778 INFO running `"docker" "rm" "-f" "ed5eb91864873472802f981e1cd66566138b1b9c37399978cbaee69df821b0da"`
Dec 17 14:22:02.052 INFO [stdout] ed5eb91864873472802f981e1cd66566138b1b9c37399978cbaee69df821b0da