Dec 18 11:08:13.298 INFO checking slog-stdlog-3.0.4-pre against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 11:08:13.298 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-2/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/reg/slog-stdlog/3.0.4-pre:/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 11:08:13.467 INFO [stdout] b881e6ec3567515d3d5e9bde9e2ec3152fe327300568aedf7f1a4f708f1efdfd
Dec 18 11:08:13.470 INFO running `"docker" "start" "-a" "b881e6ec3567515d3d5e9bde9e2ec3152fe327300568aedf7f1a4f708f1efdfd"`
Dec 18 11:08:14.177 INFO [stderr]     Checking crossbeam v0.6.0
Dec 18 11:08:14.851 INFO [stderr]     Checking slog-scope v4.1.0
Dec 18 11:08:15.335 INFO [stderr]     Checking slog-stdlog v3.0.4-pre (/opt/crater/workdir)
Dec 18 11:08:15.939 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.85s
Dec 18 11:08:16.149 INFO running `"docker" "inspect" "b881e6ec3567515d3d5e9bde9e2ec3152fe327300568aedf7f1a4f708f1efdfd"`
Dec 18 11:08:16.237 INFO running `"docker" "rm" "-f" "b881e6ec3567515d3d5e9bde9e2ec3152fe327300568aedf7f1a4f708f1efdfd"`
Dec 18 11:08:16.324 INFO [stdout] b881e6ec3567515d3d5e9bde9e2ec3152fe327300568aedf7f1a4f708f1efdfd