Dec 17 21:05:58.522 INFO checking krobelus/rate against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 21:05:58.522 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/krobelus/rate:/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 21:05:58.895 INFO [stdout] 3a1b7094bf3933154811c3478314e559de1443ab59b195baf6d7831d23d98faa
Dec 17 21:05:58.897 INFO running `"docker" "start" "-a" "3a1b7094bf3933154811c3478314e559de1443ab59b195baf6d7831d23d98faa"`
Dec 17 21:06:01.334 INFO [stderr]     Checking memmap v0.7.0
Dec 17 21:06:01.334 INFO [stderr]     Checking multimap v0.4.0
Dec 17 21:06:01.334 INFO [stderr]    Compiling syn v0.15.22
Dec 17 21:06:12.942 INFO [stderr]    Compiling derive_more v0.13.0
Dec 17 21:06:18.727 INFO [stderr]     Checking rate v0.1.0 (/opt/crater/workdir)
Dec 17 21:06:19.792 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.59s
Dec 17 21:06:20.198 INFO running `"docker" "inspect" "3a1b7094bf3933154811c3478314e559de1443ab59b195baf6d7831d23d98faa"`
Dec 17 21:06:20.356 INFO running `"docker" "rm" "-f" "3a1b7094bf3933154811c3478314e559de1443ab59b195baf6d7831d23d98faa"`
Dec 17 21:06:20.600 INFO [stdout] 3a1b7094bf3933154811c3478314e559de1443ab59b195baf6d7831d23d98faa