Dec 19 15:13:20.670 INFO checking jgriebler/mycon against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 15:13:20.670 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-0/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/jgriebler/mycon:/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 15:13:20.976 INFO [stdout] d17616f3b1299fa9565847ae5d42187f3b78b7744fcd313aee3e8b8889a111a0
Dec 19 15:13:20.978 INFO running `"docker" "start" "-a" "d17616f3b1299fa9565847ae5d42187f3b78b7744fcd313aee3e8b8889a111a0"`
Dec 19 15:13:22.189 INFO [stderr]     Checking simplelog v0.5.3
Dec 19 15:13:22.189 INFO [stderr]     Checking mycon v0.2.0 (/opt/crater/workdir)
Dec 19 15:13:22.198 INFO [stderr]     Checking handlebars v0.32.4
Dec 19 15:13:25.416 INFO [stderr]     Checking criterion v0.2.5
Dec 19 15:13:30.519 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.52s
Dec 19 15:13:31.633 INFO running `"docker" "inspect" "d17616f3b1299fa9565847ae5d42187f3b78b7744fcd313aee3e8b8889a111a0"`
Dec 19 15:13:31.980 INFO running `"docker" "rm" "-f" "d17616f3b1299fa9565847ae5d42187f3b78b7744fcd313aee3e8b8889a111a0"`
Dec 19 15:13:32.368 INFO [stdout] d17616f3b1299fa9565847ae5d42187f3b78b7744fcd313aee3e8b8889a111a0