Dec 18 16:29:33.173 INFO checking fingertrees-0.2.1 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 16:29:33.173 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-5/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/fingertrees/0.2.1:/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 16:29:33.493 INFO [stdout] b25ec5f1e82af4cbc244bad623f8891ea55ac147dc73d49f8feb1b8c6dd7c466
Dec 18 16:29:33.498 INFO running `"docker" "start" "-a" "b25ec5f1e82af4cbc244bad623f8891ea55ac147dc73d49f8feb1b8c6dd7c466"`
Dec 18 16:29:34.419 INFO [stderr]     Checking fingertrees v0.2.1 (/opt/crater/workdir)
Dec 18 16:29:36.981 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.73s
Dec 18 16:29:37.608 INFO running `"docker" "inspect" "b25ec5f1e82af4cbc244bad623f8891ea55ac147dc73d49f8feb1b8c6dd7c466"`
Dec 18 16:29:37.790 INFO running `"docker" "rm" "-f" "b25ec5f1e82af4cbc244bad623f8891ea55ac147dc73d49f8feb1b8c6dd7c466"`
Dec 18 16:29:37.946 INFO [stdout] b25ec5f1e82af4cbc244bad623f8891ea55ac147dc73d49f8feb1b8c6dd7c466