Dec 18 14:42:21.729 INFO checking k2so-2.1.0 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 14:42:21.729 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-1/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/reg/k2so/2.1.0:/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 14:42:22.145 INFO [stdout] c14f67eb1c1fbfc6a6163642ac544b7d8c8816ea6da535e8bbeda1087c6d12c5
Dec 18 14:42:22.146 INFO running `"docker" "start" "-a" "c14f67eb1c1fbfc6a6163642ac544b7d8c8816ea6da535e8bbeda1087c6d12c5"`
Dec 18 14:42:22.948 INFO [stderr]     Checking term_size v0.2.3
Dec 18 14:42:23.191 INFO [stderr]     Checking clap v2.19.3
Dec 18 14:42:27.342 INFO [stderr]     Checking k2so v2.1.0 (/opt/crater/workdir)
Dec 18 14:42:28.239 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.35s
Dec 18 14:42:28.818 INFO running `"docker" "inspect" "c14f67eb1c1fbfc6a6163642ac544b7d8c8816ea6da535e8bbeda1087c6d12c5"`
Dec 18 14:42:29.019 INFO running `"docker" "rm" "-f" "c14f67eb1c1fbfc6a6163642ac544b7d8c8816ea6da535e8bbeda1087c6d12c5"`
Dec 18 14:42:29.300 INFO [stdout] c14f67eb1c1fbfc6a6163642ac544b7d8c8816ea6da535e8bbeda1087c6d12c5