Dec 18 13:35:33.303 INFO checking notifier-0.1.0 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 13:35:33.303 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-5/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/notifier/0.1.0:/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 13:35:33.457 INFO [stdout] 08db028ffa982efa421d408069f992ce006fa6cc912c8ca6791b918bf3e5a114
Dec 18 13:35:33.459 INFO running `"docker" "start" "-a" "08db028ffa982efa421d408069f992ce006fa6cc912c8ca6791b918bf3e5a114"`
Dec 18 13:35:34.095 INFO [stderr]     Checking valgrind_request v1.1.0
Dec 18 13:35:34.102 INFO [stderr]     Checking proc_self v0.1.0
Dec 18 13:35:34.552 INFO [stderr]     Checking palaver v0.1.0
Dec 18 13:35:35.116 INFO [stderr]     Checking notifier v0.1.0 (/opt/crater/workdir)
Dec 18 13:35:36.033 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.98s
Dec 18 13:35:36.686 INFO running `"docker" "inspect" "08db028ffa982efa421d408069f992ce006fa6cc912c8ca6791b918bf3e5a114"`
Dec 18 13:35:36.888 INFO running `"docker" "rm" "-f" "08db028ffa982efa421d408069f992ce006fa6cc912c8ca6791b918bf3e5a114"`
Dec 18 13:35:37.256 INFO [stdout] 08db028ffa982efa421d408069f992ce006fa6cc912c8ca6791b918bf3e5a114