Dec 18 10:00:53.626 INFO checking tree-index-0.5.0 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 10:00:53.626 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-3/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/tree-index/0.5.0:/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 10:00:53.902 INFO [stdout] f1c268e8263b07feda266b4c4052c89454cf3d23b3d3070fc25c47593850413f
Dec 18 10:00:53.904 INFO running `"docker" "start" "-a" "f1c268e8263b07feda266b4c4052c89454cf3d23b3d3070fc25c47593850413f"`
Dec 18 10:00:55.108 INFO [stderr]     Checking flat-tree v3.7.0
Dec 18 10:00:55.109 INFO [stderr]     Checking memory-pager v0.8.0
Dec 18 10:00:55.558 INFO [stderr]     Checking sparse-bitfield v0.8.1
Dec 18 10:00:55.926 INFO [stderr]     Checking tree-index v0.5.0 (/opt/crater/workdir)
Dec 18 10:00:57.348 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.30s
Dec 18 10:00:58.336 INFO running `"docker" "inspect" "f1c268e8263b07feda266b4c4052c89454cf3d23b3d3070fc25c47593850413f"`
Dec 18 10:00:58.596 INFO running `"docker" "rm" "-f" "f1c268e8263b07feda266b4c4052c89454cf3d23b3d3070fc25c47593850413f"`
Dec 18 10:00:58.960 INFO [stdout] f1c268e8263b07feda266b4c4052c89454cf3d23b3d3070fc25c47593850413f