Dec 02 02:58:49.830 INFO documenting serializers-0.2.2 against try#f86f76f89ea2b1ccbfb3741962ec2029d878a389 for pr-55318-1
Dec 02 02:58:49.830 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55318-1/worker-1/try#f86f76f89ea2b1ccbfb3741962ec2029d878a389:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-55318-1/try#f86f76f89ea2b1ccbfb3741962ec2029d878a389:/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 +f86f76f89ea2b1ccbfb3741962ec2029d878a389-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"`
Dec 02 02:58:50.232 INFO [stdout] babed58db518f85d9c22776715befe9c5abeee44fcb04aced4e5dbcf2a33fee7
Dec 02 02:58:50.234 INFO running `"docker" "start" "-a" "babed58db518f85d9c22776715befe9c5abeee44fcb04aced4e5dbcf2a33fee7"`
Dec 02 02:58:51.492 INFO [stderr] usermod: no changes
Dec 02 02:58:51.720 INFO [stderr]    Compiling error-chain v0.11.0
Dec 02 02:58:52.628 INFO [stderr]    Compiling cargo_metadata v0.5.8
Dec 02 02:58:56.123 INFO [stderr]    Compiling skeptic v0.13.3
Dec 02 02:58:59.476 INFO [stderr]    Compiling serializers v0.2.2 (/source)
Dec 02 02:59:02.228 INFO [stderr]  Documenting serializers v0.2.2 (/source)
Dec 02 02:59:04.224 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.68s
Dec 02 02:59:04.233 INFO [stderr] su: No module specific data is present
Dec 02 02:59:04.786 INFO running `"docker" "inspect" "babed58db518f85d9c22776715befe9c5abeee44fcb04aced4e5dbcf2a33fee7"`
Dec 02 02:59:05.066 INFO running `"docker" "rm" "-f" "babed58db518f85d9c22776715befe9c5abeee44fcb04aced4e5dbcf2a33fee7"`
Dec 02 02:59:05.327 INFO [stdout] babed58db518f85d9c22776715befe9c5abeee44fcb04aced4e5dbcf2a33fee7