Dec 17 21:17:11.689 INFO checking koka831/xel against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 21:17:11.689 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-4/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/koka831/xel:/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 21:17:12.164 INFO [stdout] 4ced90ee61383e487d0163092c1adc96ecd13aaba3bf6aae846a8d05858358c7
Dec 17 21:17:12.172 INFO running `"docker" "start" "-a" "4ced90ee61383e487d0163092c1adc96ecd13aaba3bf6aae846a8d05858358c7"`
Dec 17 21:17:14.100 INFO [stderr]     Checking num-complex v0.1.42
Dec 17 21:17:14.100 INFO [stderr]     Checking num-bigint v0.1.43
Dec 17 21:17:17.036 INFO [stderr]     Checking num-rational v0.1.42
Dec 17 21:17:17.704 INFO [stderr]     Checking num v0.1.42
Dec 17 21:17:17.972 INFO [stderr]     Checking xel v0.1.0 (/opt/crater/workdir)
Dec 17 21:17:19.561 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.59s
Dec 17 21:17:20.466 INFO running `"docker" "inspect" "4ced90ee61383e487d0163092c1adc96ecd13aaba3bf6aae846a8d05858358c7"`
Dec 17 21:17:20.774 INFO running `"docker" "rm" "-f" "4ced90ee61383e487d0163092c1adc96ecd13aaba3bf6aae846a8d05858358c7"`
Dec 17 21:17:21.107 INFO [stdout] 4ced90ee61383e487d0163092c1adc96ecd13aaba3bf6aae846a8d05858358c7