Nov 27 23:36:17.313 INFO documenting danielpclark/bench_ruby_ffi_example against master#6bfb46e4ac9a2704f06de1a2ff7a4612cd70c8cb for pr-55318
Nov 27 23:36:17.313 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55318/worker-4/master#6bfb46e4ac9a2704f06de1a2ff7a4612cd70c8cb:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/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 23:36:17.756 INFO [stdout] ec09655086e549a8c0798e8011611ad4cf6da50e503b5c6b22ecadef2412efdb
Nov 27 23:36:17.759 INFO running `"docker" "start" "-a" "ec09655086e549a8c0798e8011611ad4cf6da50e503b5c6b22ecadef2412efdb"`
Nov 27 23:36:18.835 INFO [stderr] usermod: no changes
Nov 27 23:36:18.890 INFO [stderr]    Compiling ruby-sys v0.2.20
Nov 27 23:36:18.891 INFO [stderr]     Checking array_tool v0.4.1
Nov 27 23:36:20.100 INFO [stderr]     Checking ruru v0.9.3
Nov 27 23:36:20.807 INFO [stderr]  Documenting ffi_example v0.0.1 (/source)
Nov 27 23:36:22.935 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.07s
Nov 27 23:36:22.939 INFO [stderr] su: No module specific data is present
Nov 27 23:36:23.759 INFO running `"docker" "inspect" "ec09655086e549a8c0798e8011611ad4cf6da50e503b5c6b22ecadef2412efdb"`
Nov 27 23:36:24.063 INFO running `"docker" "rm" "-f" "ec09655086e549a8c0798e8011611ad4cf6da50e503b5c6b22ecadef2412efdb"`
Nov 27 23:36:24.453 INFO [stdout] ec09655086e549a8c0798e8011611ad4cf6da50e503b5c6b22ecadef2412efdb