Dec 02 00:37:47.902 INFO documenting zerodmg-0.1.9 against master#147e60c5f89cfa2d3ffc247413956a37582c98e7 for pr-55318-1
Dec 02 00:37:47.902 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55318-1/worker-5/master#147e60c5f89cfa2d3ffc247413956a37582c98e7:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-55318-1/master#147e60c5f89cfa2d3ffc247413956a37582c98e7:/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 +147e60c5f89cfa2d3ffc247413956a37582c98e7-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 00:37:48.168 INFO [stdout] 5f4d5f30596d6b8a2f93dcc729c1ed3ac74e3f7e933056d680ee33963b7ee1f2
Dec 02 00:37:48.174 INFO running `"docker" "start" "-a" "5f4d5f30596d6b8a2f93dcc729c1ed3ac74e3f7e933056d680ee33963b7ee1f2"`
Dec 02 00:37:48.992 INFO [stderr] usermod: no changes
Dec 02 00:37:49.141 INFO [stderr] warning: the cargo feature `edition` is now stable and is no longer necessary to be listed in the manifest
Dec 02 00:37:49.373 INFO [stderr]     Checking smallvec v0.6.7
Dec 02 00:37:49.413 INFO [stderr]    Compiling syn v0.15.22
Dec 02 00:37:50.695 INFO [stderr]     Checking parking_lot_core v0.3.1
Dec 02 00:37:52.049 INFO [stderr]     Checking parking_lot v0.6.4
Dec 02 00:37:53.841 INFO [stderr]     Checking tokio-reactor v0.1.7
Dec 02 00:37:56.540 INFO [stderr]     Checking tokio-uds v0.2.4
Dec 02 00:37:56.540 INFO [stderr]     Checking tokio-udp v0.1.3
Dec 02 00:37:56.540 INFO [stderr]     Checking tokio-tcp v0.1.2
Dec 02 00:37:59.733 INFO [stderr]     Checking tokio v0.1.13
Dec 02 00:38:02.656 INFO [stderr]    Compiling num-derive v0.2.3
Dec 02 00:38:03.751 INFO [stderr]     Checking tokio-core v0.1.17
Dec 02 00:38:06.744 INFO [stderr]     Checking tokio-proto v0.1.1
Dec 02 00:38:10.654 INFO [stderr]     Checking image v0.19.0
Dec 02 00:38:11.521 INFO [stderr]     Checking hyper v0.11.27
Dec 02 00:38:18.932 INFO [stderr]     Checking zerodmg-utils v0.1.9
Dec 02 00:38:19.432 INFO [stderr]     Checking zerodmg-codes v0.1.9
Dec 02 00:38:20.576 INFO [stderr] error[E0635]: unknown feature `rust_2018_idioms`
Dec 02 00:38:20.576 INFO [stderr]  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/zerodmg-codes-0.1.9/src/lib.rs:2:12
Dec 02 00:38:20.576 INFO [stderr]   |
Dec 02 00:38:20.576 INFO [stderr] 2 | #![feature(rust_2018_idioms)]
Dec 02 00:38:20.576 INFO [stderr]   |            ^^^^^^^^^^^^^^^^
Dec 02 00:38:20.576 INFO [stderr] 
Dec 02 00:38:20.584 INFO [stderr] error: aborting due to previous error
Dec 02 00:38:20.584 INFO [stderr] 
Dec 02 00:38:20.584 INFO [stderr] For more information about this error, try `rustc --explain E0635`.
Dec 02 00:38:20.592 INFO [stderr] error: Could not compile `zerodmg-codes`.
Dec 02 00:38:20.592 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 02 00:38:21.180 INFO [stderr] error: build failed
Dec 02 00:38:21.183 INFO [stderr] su: No module specific data is present
Dec 02 00:38:21.543 INFO running `"docker" "inspect" "5f4d5f30596d6b8a2f93dcc729c1ed3ac74e3f7e933056d680ee33963b7ee1f2"`
Dec 02 00:38:21.690 INFO running `"docker" "rm" "-f" "5f4d5f30596d6b8a2f93dcc729c1ed3ac74e3f7e933056d680ee33963b7ee1f2"`
Dec 02 00:38:21.821 INFO [stdout] 5f4d5f30596d6b8a2f93dcc729c1ed3ac74e3f7e933056d680ee33963b7ee1f2