Dec 18 12:54:20.041 INFO checking popcorn-butter-0.1.0 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 12:54:20.041 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-0/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/reg/popcorn-butter/0.1.0:/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 12:54:20.370 INFO [stdout] 959ab23bf2c6a4ebe3337028e60d5445ff84b6c6aff07e6da3eb596b2801f095
Dec 18 12:54:20.374 INFO running `"docker" "start" "-a" "959ab23bf2c6a4ebe3337028e60d5445ff84b6c6aff07e6da3eb596b2801f095"`
Dec 18 12:54:21.661 INFO [stderr]     Checking blas-sys v0.6.9
Dec 18 12:54:21.668 INFO [stderr]     Checking popcorn v0.1.0
Dec 18 12:54:22.432 INFO [stderr]     Checking popcorn-blas v0.1.0
Dec 18 12:54:22.944 INFO [stderr]     Checking popcorn-butter v0.1.0 (/opt/crater/workdir)
Dec 18 12:54:23.239 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.64s
Dec 18 12:54:23.508 INFO running `"docker" "inspect" "959ab23bf2c6a4ebe3337028e60d5445ff84b6c6aff07e6da3eb596b2801f095"`
Dec 18 12:54:23.594 INFO running `"docker" "rm" "-f" "959ab23bf2c6a4ebe3337028e60d5445ff84b6c6aff07e6da3eb596b2801f095"`
Dec 18 12:54:23.668 INFO [stdout] 959ab23bf2c6a4ebe3337028e60d5445ff84b6c6aff07e6da3eb596b2801f095