Dec 18 11:30:43.772 INFO checking scoped-gc-derive-0.1.1 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 11:30:43.772 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/reg/scoped-gc-derive/0.1.1:/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 11:30:43.961 INFO [stdout] 22461b74079294c2159145b75802d35c73748aa7c992fc2a0f60c073e3d44fd4
Dec 18 11:30:43.963 INFO running `"docker" "start" "-a" "22461b74079294c2159145b75802d35c73748aa7c992fc2a0f60c073e3d44fd4"`
Dec 18 11:30:44.684 INFO [stderr] warning: only one of `license` or `license-file` is necessary
Dec 18 11:30:44.692 INFO [stderr]     Checking syn v0.12.15
Dec 18 11:30:48.740 INFO [stderr]     Checking synstructure v0.7.0
Dec 18 11:30:49.359 INFO [stderr]     Checking scoped-gc-derive v0.1.1 (/opt/crater/workdir)
Dec 18 11:30:49.723 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.05s
Dec 18 11:30:50.040 INFO running `"docker" "inspect" "22461b74079294c2159145b75802d35c73748aa7c992fc2a0f60c073e3d44fd4"`
Dec 18 11:30:50.190 INFO running `"docker" "rm" "-f" "22461b74079294c2159145b75802d35c73748aa7c992fc2a0f60c073e3d44fd4"`
Dec 18 11:30:50.324 INFO [stdout] 22461b74079294c2159145b75802d35c73748aa7c992fc2a0f60c073e3d44fd4