Nov 27 18:12:44.686 INFO documenting luotaoyeah/learning-rust against master#6bfb46e4ac9a2704f06de1a2ff7a4612cd70c8cb for pr-55318
Nov 27 18:12:44.687 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55318/worker-3/master#6bfb46e4ac9a2704f06de1a2ff7a4612cd70c8cb:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-55318/master#6bfb46e4ac9a2704f06de1a2ff7a4612cd70c8cb:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +6bfb46e4ac9a2704f06de1a2ff7a4612cd70c8cb-alt doc --frozen --no-deps --document-private-items" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 27 18:12:45.151 INFO [stdout] 56e051cee51b589c8c9d980c34f6dd347db083e5c247d5e2047dea7c9765c0f2
Nov 27 18:12:45.153 INFO running `"docker" "start" "-a" "56e051cee51b589c8c9d980c34f6dd347db083e5c247d5e2047dea7c9765c0f2"`
Nov 27 18:12:46.454 INFO [stderr] usermod: no changes
Nov 27 18:12:46.535 INFO [stderr]     Checking rand_core v0.3.0
Nov 27 18:12:46.536 INFO [stderr]     Checking libc v0.2.43
Nov 27 18:12:47.031 INFO [stderr]     Checking rand_core v0.2.2
Nov 27 18:12:47.656 INFO [stderr]     Checking rand v0.5.5
Nov 27 18:12:49.840 INFO [stderr]  Documenting learning-rust v0.1.0 (/source)
Nov 27 18:12:51.483 INFO [stderr]     Finished dev [optimized + debuginfo] target(s) in 5.00s
Nov 27 18:12:51.487 INFO [stderr] su: No module specific data is present
Nov 27 18:12:52.743 INFO running `"docker" "inspect" "56e051cee51b589c8c9d980c34f6dd347db083e5c247d5e2047dea7c9765c0f2"`
Nov 27 18:12:53.029 INFO running `"docker" "rm" "-f" "56e051cee51b589c8c9d980c34f6dd347db083e5c247d5e2047dea7c9765c0f2"`
Nov 27 18:12:53.353 INFO [stdout] 56e051cee51b589c8c9d980c34f6dd347db083e5c247d5e2047dea7c9765c0f2