Dec 17 19:12:45.057 INFO checking mthom/rusty-wam against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 19:12:45.057 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/gh/mthom/rusty-wam:/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 19:12:45.621 INFO [stdout] c9aaa006707c15842aba0031d073aef16aff8da3f0698b0a6a9e10147588f54f
Dec 17 19:12:45.623 INFO running `"docker" "start" "-a" "c9aaa006707c15842aba0031d073aef16aff8da3f0698b0a6a9e10147588f54f"`
Dec 17 19:12:47.354 INFO [stderr]     Checking downcast v0.9.1
Dec 17 19:12:47.372 INFO [stderr]     Checking ordered-float v0.5.0
Dec 17 19:12:47.938 INFO [stderr]     Checking prolog_parser v0.7.18
Dec 17 19:12:49.136 INFO [stderr]     Checking rusty-wam v0.7.16 (/opt/crater/workdir)
Dec 17 19:12:56.100 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.83s
Dec 17 19:12:57.193 INFO running `"docker" "inspect" "c9aaa006707c15842aba0031d073aef16aff8da3f0698b0a6a9e10147588f54f"`
Dec 17 19:12:57.514 INFO running `"docker" "rm" "-f" "c9aaa006707c15842aba0031d073aef16aff8da3f0698b0a6a9e10147588f54f"`
Dec 17 19:12:57.772 INFO [stdout] c9aaa006707c15842aba0031d073aef16aff8da3f0698b0a6a9e10147588f54f