Nov 28 10:49:39.964 INFO documenting proc_macro_helper-0.3.0 against master#6bfb46e4ac9a2704f06de1a2ff7a4612cd70c8cb for pr-55318
Nov 28 10:49:39.964 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55318/worker-0/master#6bfb46e4ac9a2704f06de1a2ff7a4612cd70c8cb:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/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 28 10:49:40.178 INFO [stdout] 88efd2a52787edd6b3b02a144355682715a6d17ff490debcc1109f28cbf8044f
Nov 28 10:49:40.181 INFO running `"docker" "start" "-a" "88efd2a52787edd6b3b02a144355682715a6d17ff490debcc1109f28cbf8044f"`
Nov 28 10:49:40.907 INFO [stderr] usermod: no changes
Nov 28 10:49:40.959 INFO [stderr]     Checking syn v0.15.22
Nov 28 10:49:47.172 INFO [stderr]  Documenting proc_macro_helper v0.3.0 (/source)
Nov 28 10:49:51.743 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.81s
Nov 28 10:49:51.744 INFO [stderr] su: No module specific data is present
Nov 28 10:49:52.010 INFO running `"docker" "inspect" "88efd2a52787edd6b3b02a144355682715a6d17ff490debcc1109f28cbf8044f"`
Nov 28 10:49:52.102 INFO running `"docker" "rm" "-f" "88efd2a52787edd6b3b02a144355682715a6d17ff490debcc1109f28cbf8044f"`
Nov 28 10:49:52.214 INFO [stdout] 88efd2a52787edd6b3b02a144355682715a6d17ff490debcc1109f28cbf8044f