Nov 27 18:12:38.457 INFO documenting luotaoyeah/learning-rust against try#f5a0bd723553ea4b7556bd7087b9f0919cafb483 for pr-55318
Nov 27 18:12:38.459 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55318/worker-4/try#f5a0bd723553ea4b7556bd7087b9f0919cafb483:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-55318/try#f5a0bd723553ea4b7556bd7087b9f0919cafb483:/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 +f5a0bd723553ea4b7556bd7087b9f0919cafb483-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 18:12:38.976 INFO [stdout] 1ef3e81bb020d5230bf91192587fe508ecab96c214b9f2ff7385ac21fd4cfa15
Nov 27 18:12:38.978 INFO running `"docker" "start" "-a" "1ef3e81bb020d5230bf91192587fe508ecab96c214b9f2ff7385ac21fd4cfa15"`
Nov 27 18:12:40.266 INFO [stderr] usermod: no changes
Nov 27 18:12:40.361 INFO [stderr]     Checking rand_core v0.3.0
Nov 27 18:12:40.362 INFO [stderr]     Checking libc v0.2.43
Nov 27 18:12:40.985 INFO [stderr]     Checking rand_core v0.2.2
Nov 27 18:12:41.908 INFO [stderr]     Checking rand v0.5.5
Nov 27 18:12:44.251 INFO [stderr]  Documenting learning-rust v0.1.0 (/source)
Nov 27 18:12:45.974 INFO [stderr]     Finished dev [optimized + debuginfo] target(s) in 5.68s
Nov 27 18:12:45.978 INFO [stderr] su: No module specific data is present
Nov 27 18:12:46.648 INFO running `"docker" "inspect" "1ef3e81bb020d5230bf91192587fe508ecab96c214b9f2ff7385ac21fd4cfa15"`
Nov 27 18:12:46.800 INFO running `"docker" "rm" "-f" "1ef3e81bb020d5230bf91192587fe508ecab96c214b9f2ff7385ac21fd4cfa15"`
Nov 27 18:12:46.888 INFO [stdout] 1ef3e81bb020d5230bf91192587fe508ecab96c214b9f2ff7385ac21fd4cfa15