Dec 18 11:27:46.426 INFO checking selectors-0.20.0 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 11:27:46.426 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-2/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/reg/selectors/0.20.0:/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 11:27:46.856 INFO [stdout] 34630934cb2fed9ecac855421cb51280f7d7a0e18f685e834efec0aa9f529102
Dec 18 11:27:46.862 INFO running `"docker" "start" "-a" "34630934cb2fed9ecac855421cb51280f7d7a0e18f685e834efec0aa9f529102"`
Dec 18 11:27:48.360 INFO [stderr]    Compiling syn v0.15.23
Dec 18 11:27:48.364 INFO [stderr]    Compiling selectors v0.20.0 (/opt/crater/workdir)
Dec 18 11:28:04.356 INFO [stderr]    Compiling cssparser-macros v0.3.5
Dec 18 11:28:06.565 INFO [stderr]     Checking cssparser v0.24.1
Dec 18 11:28:12.644 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.39s
Dec 18 11:28:12.926 INFO running `"docker" "inspect" "34630934cb2fed9ecac855421cb51280f7d7a0e18f685e834efec0aa9f529102"`
Dec 18 11:28:13.037 INFO running `"docker" "rm" "-f" "34630934cb2fed9ecac855421cb51280f7d7a0e18f685e834efec0aa9f529102"`
Dec 18 11:28:13.127 INFO [stdout] 34630934cb2fed9ecac855421cb51280f7d7a0e18f685e834efec0aa9f529102