Nov 28 14:12:04.040 INFO documenting futures-macro-async-0.2.1 against master#6bfb46e4ac9a2704f06de1a2ff7a4612cd70c8cb for pr-55318
Nov 28 14:12:04.040 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55318/worker-6/master#6bfb46e4ac9a2704f06de1a2ff7a4612cd70c8cb:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/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 14:12:04.192 INFO [stdout] 14051bfd9a11ace97c0a8912c6490e3dc3b0f7edc39a1b599bd7c79b0dd4841c
Nov 28 14:12:04.194 INFO running `"docker" "start" "-a" "14051bfd9a11ace97c0a8912c6490e3dc3b0f7edc39a1b599bd7c79b0dd4841c"`
Nov 28 14:12:04.602 INFO [stderr] usermod: no changes
Nov 28 14:12:04.631 INFO [stderr]     Checking proc-macro2 v0.3.8
Nov 28 14:12:07.123 INFO [stderr]     Checking quote v0.5.2
Nov 28 14:12:09.075 INFO [stderr]     Checking syn v0.13.11
Nov 28 14:12:17.411 INFO [stderr]  Documenting futures-macro-async v0.2.1 (/source)
Nov 28 14:12:18.952 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.34s
Nov 28 14:12:18.953 INFO [stderr] su: No module specific data is present
Nov 28 14:12:19.224 INFO running `"docker" "inspect" "14051bfd9a11ace97c0a8912c6490e3dc3b0f7edc39a1b599bd7c79b0dd4841c"`
Nov 28 14:12:19.372 INFO running `"docker" "rm" "-f" "14051bfd9a11ace97c0a8912c6490e3dc3b0f7edc39a1b599bd7c79b0dd4841c"`
Nov 28 14:12:19.464 INFO [stdout] 14051bfd9a11ace97c0a8912c6490e3dc3b0f7edc39a1b599bd7c79b0dd4841c