Dec 18 11:04:45.452 INFO checking snapshot-0.1.0 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 11:04:45.452 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/snapshot/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 11:04:45.735 INFO [stdout] 649fefd61d10020f15e4b1e220baa9eeee3cacf90477e48e3d93d0bd9652b64e
Dec 18 11:04:45.736 INFO running `"docker" "start" "-a" "649fefd61d10020f15e4b1e220baa9eeee3cacf90477e48e3d93d0bd9652b64e"`
Dec 18 11:04:46.630 INFO [stderr]     Checking pretty_assertions v0.2.1
Dec 18 11:04:46.630 INFO [stderr]    Compiling syn v0.14.9
Dec 18 11:04:59.708 INFO [stderr]    Compiling snapshot-proc-macro v0.1.0
Dec 18 11:05:01.016 INFO [stderr]     Checking snapshot v0.1.0 (/opt/crater/workdir)
Dec 18 11:05:02.341 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.75s
Dec 18 11:05:02.567 INFO running `"docker" "inspect" "649fefd61d10020f15e4b1e220baa9eeee3cacf90477e48e3d93d0bd9652b64e"`
Dec 18 11:05:02.660 INFO running `"docker" "rm" "-f" "649fefd61d10020f15e4b1e220baa9eeee3cacf90477e48e3d93d0bd9652b64e"`
Dec 18 11:05:02.744 INFO [stdout] 649fefd61d10020f15e4b1e220baa9eeee3cacf90477e48e3d93d0bd9652b64e