Dec 19 08:06:32.063 INFO checking stevedonovan/cargo-docgen against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 08:06:32.063 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-3/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/stevedonovan/cargo-docgen:/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 08:06:32.599 INFO [stdout] 885cbbdf16465c4b2d20ead7d82babbbe914eaf18fb23d2a86a54826a3fe58fe
Dec 19 08:06:32.601 INFO running `"docker" "start" "-a" "885cbbdf16465c4b2d20ead7d82babbbe914eaf18fb23d2a86a54826a3fe58fe"`
Dec 19 08:06:35.500 INFO [stderr]     Checking easy-shortcuts v0.2.0
Dec 19 08:06:35.500 INFO [stderr]     Checking lapp v0.3.0
Dec 19 08:06:36.466 INFO [stderr]     Checking cargo-docgen v0.1.3 (/opt/crater/workdir)
Dec 19 08:06:37.112 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.66s
Dec 19 08:06:38.600 INFO running `"docker" "inspect" "885cbbdf16465c4b2d20ead7d82babbbe914eaf18fb23d2a86a54826a3fe58fe"`
Dec 19 08:06:38.952 INFO running `"docker" "rm" "-f" "885cbbdf16465c4b2d20ead7d82babbbe914eaf18fb23d2a86a54826a3fe58fe"`
Dec 19 08:06:39.268 INFO [stdout] 885cbbdf16465c4b2d20ead7d82babbbe914eaf18fb23d2a86a54826a3fe58fe