Dec 17 16:00:33.866 INFO checking schultyy/k2so against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 16:00:33.867 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-7/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/schultyy/k2so:/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 17 16:00:34.394 INFO [stdout] 575bfdd7693121c539f837b863ca3b0aec0d265cd4395f538ccb23be06dcc8a6
Dec 17 16:00:34.396 INFO running `"docker" "start" "-a" "575bfdd7693121c539f837b863ca3b0aec0d265cd4395f538ccb23be06dcc8a6"`
Dec 17 16:00:36.089 INFO [stderr]     Checking unicode-segmentation v0.1.3
Dec 17 16:00:36.093 INFO [stderr]     Checking term_size v0.2.1
Dec 17 16:00:36.114 INFO [stderr]     Checking toml v0.2.1
Dec 17 16:00:37.350 INFO [stderr]     Checking clap v2.19.3
Dec 17 16:00:42.052 INFO [stderr]     Checking k2so v2.0.0 (/opt/crater/workdir)
Dec 17 16:00:42.833 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.80s
Dec 17 16:00:43.946 INFO running `"docker" "inspect" "575bfdd7693121c539f837b863ca3b0aec0d265cd4395f538ccb23be06dcc8a6"`
Dec 17 16:00:44.180 INFO running `"docker" "rm" "-f" "575bfdd7693121c539f837b863ca3b0aec0d265cd4395f538ccb23be06dcc8a6"`
Dec 17 16:00:44.521 INFO [stdout] 575bfdd7693121c539f837b863ca3b0aec0d265cd4395f538ccb23be06dcc8a6