Dec 18 18:39:56.253 INFO checking alerts-0.1.1 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 18:39:56.253 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-2/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/alerts/0.1.1:/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 18 18:39:56.444 INFO [stdout] 8aca5c0f2b2723ff570f55f94d53c8eb495c2f26d051881d845ec94291f5f946
Dec 18 18:39:56.450 INFO running `"docker" "start" "-a" "8aca5c0f2b2723ff570f55f94d53c8eb495c2f26d051881d845ec94291f5f946"`
Dec 18 18:39:57.198 INFO [stderr]     Checking alerts v0.1.1 (/opt/crater/workdir)
Dec 18 18:39:57.680 INFO [stderr] warning: unused variable: `head`
Dec 18 18:39:57.680 INFO [stderr]   --> src/alert.rs:33:18
Dec 18 18:39:57.680 INFO [stderr]    |
Dec 18 18:39:57.680 INFO [stderr] 33 | fn alert_message(head: &str,msg: &str,_wflags: i32) -> Result<(), Error> {
Dec 18 18:39:57.680 INFO [stderr]    |                  ^^^^ help: consider using `_head` instead
Dec 18 18:39:57.680 INFO [stderr]    |
Dec 18 18:39:57.680 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 18:39:57.680 INFO [stderr] 
Dec 18 18:39:57.694 INFO [stderr] warning: unused variable: `head`
Dec 18 18:39:57.694 INFO [stderr]   --> src/alert.rs:33:18
Dec 18 18:39:57.694 INFO [stderr]    |
Dec 18 18:39:57.694 INFO [stderr] 33 | fn alert_message(head: &str,msg: &str,_wflags: i32) -> Result<(), Error> {
Dec 18 18:39:57.694 INFO [stderr]    |                  ^^^^ help: consider using `_head` instead
Dec 18 18:39:57.694 INFO [stderr]    |
Dec 18 18:39:57.694 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 18:39:57.694 INFO [stderr] 
Dec 18 18:39:57.759 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.62s
Dec 18 18:39:58.143 INFO running `"docker" "inspect" "8aca5c0f2b2723ff570f55f94d53c8eb495c2f26d051881d845ec94291f5f946"`
Dec 18 18:39:58.297 INFO running `"docker" "rm" "-f" "8aca5c0f2b2723ff570f55f94d53c8eb495c2f26d051881d845ec94291f5f946"`
Dec 18 18:39:58.430 INFO [stdout] 8aca5c0f2b2723ff570f55f94d53c8eb495c2f26d051881d845ec94291f5f946