Nov 27 16:19:51.477 INFO documenting nooberfsh/heartbeat against master#6bfb46e4ac9a2704f06de1a2ff7a4612cd70c8cb for pr-55318
Nov 27 16:19:51.478 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55318/worker-2/master#6bfb46e4ac9a2704f06de1a2ff7a4612cd70c8cb:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/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 16:19:52.431 INFO [stdout] c74435d4da2dcce61377d5bee6df5a581fc8818c49206a7f2f362d581608cac8
Nov 27 16:19:52.437 INFO running `"docker" "start" "-a" "c74435d4da2dcce61377d5bee6df5a581fc8818c49206a7f2f362d581608cac8"`
Nov 27 16:19:53.883 INFO [stderr] usermod: no changes
Nov 27 16:19:54.083 INFO [stderr]     Checking net2 v0.2.31
Nov 27 16:19:54.095 INFO [stderr]     Checking tokio-io v0.1.3
Nov 27 16:19:54.947 INFO [stderr]     Checking mio v0.6.11
Nov 27 16:19:56.654 INFO [stderr]     Checking tokio-core v0.1.10
Nov 27 16:19:57.971 INFO [stderr]  Documenting test-tokio v0.1.0 (/source)
Nov 27 16:19:59.959 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.04s
Nov 27 16:19:59.967 INFO [stderr] su: No module specific data is present
Nov 27 16:20:00.317 INFO running `"docker" "inspect" "c74435d4da2dcce61377d5bee6df5a581fc8818c49206a7f2f362d581608cac8"`
Nov 27 16:20:00.409 INFO running `"docker" "rm" "-f" "c74435d4da2dcce61377d5bee6df5a581fc8818c49206a7f2f362d581608cac8"`
Nov 27 16:20:00.473 INFO [stdout] c74435d4da2dcce61377d5bee6df5a581fc8818c49206a7f2f362d581608cac8