Dec 19 19:03:13.290 INFO checking chrissharp80/union_find against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 19:03:13.290 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-6/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/chrissharp80/union_find:/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 19:03:13.796 INFO [stdout] 2caf1b0a22b57cbc4947a899b41b79af7962622b19b1a8d1ef3550a4d215bbfd
Dec 19 19:03:13.802 INFO running `"docker" "start" "-a" "2caf1b0a22b57cbc4947a899b41b79af7962622b19b1a8d1ef3550a4d215bbfd"`
Dec 19 19:03:15.501 INFO [stderr]     Checking text_io v0.1.6
Dec 19 19:03:15.796 INFO [stderr]     Checking union_find v0.1.0 (/opt/crater/workdir)
Dec 19 19:03:16.228 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.75s
Dec 19 19:03:16.762 INFO running `"docker" "inspect" "2caf1b0a22b57cbc4947a899b41b79af7962622b19b1a8d1ef3550a4d215bbfd"`
Dec 19 19:03:17.094 INFO running `"docker" "rm" "-f" "2caf1b0a22b57cbc4947a899b41b79af7962622b19b1a8d1ef3550a4d215bbfd"`
Dec 19 19:03:17.403 INFO [stdout] 2caf1b0a22b57cbc4947a899b41b79af7962622b19b1a8d1ef3550a4d215bbfd