Dec 02 00:37:47.846 INFO documenting zerodmg-0.1.9 against try#f86f76f89ea2b1ccbfb3741962ec2029d878a389 for pr-55318-1
Dec 02 00:37:47.846 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55318-1/worker-2/try#f86f76f89ea2b1ccbfb3741962ec2029d878a389:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/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 00:37:48.117 INFO [stdout] 8f7b835b9c4c11d832b414419eee1ce47c362870e99dc2bea381c508b2592fee
Dec 02 00:37:48.122 INFO running `"docker" "start" "-a" "8f7b835b9c4c11d832b414419eee1ce47c362870e99dc2bea381c508b2592fee"`
Dec 02 00:37:48.735 INFO [stderr] usermod: no changes
Dec 02 00:37:48.876 INFO [stderr] warning: the cargo feature `edition` is now stable and is no longer necessary to be listed in the manifest
Dec 02 00:37:49.141 INFO [stderr]     Checking want v0.0.4
Dec 02 00:37:49.146 INFO [stderr]     Checking crossbeam-epoch v0.3.1
Dec 02 00:37:49.200 INFO [stderr]     Checking parking_lot_core v0.3.1
Dec 02 00:37:49.202 INFO [stderr]    Compiling num-derive v0.2.3
Dec 02 00:37:51.042 INFO [stderr]     Checking crossbeam-deque v0.2.0
Dec 02 00:37:51.398 INFO [stderr]     Checking parking_lot v0.6.4
Dec 02 00:37:53.204 INFO [stderr]     Checking rayon-core v1.4.1
Dec 02 00:37:53.933 INFO [stderr]     Checking tokio-reactor v0.1.7
Dec 02 00:37:55.553 INFO [stderr]     Checking rayon v1.0.3
Dec 02 00:37:57.349 INFO [stderr]     Checking tokio-uds v0.2.4
Dec 02 00:37:57.351 INFO [stderr]     Checking tokio-tcp v0.1.2
Dec 02 00:37:57.351 INFO [stderr]     Checking tokio-udp v0.1.3
Dec 02 00:38:00.941 INFO [stderr]     Checking tokio v0.1.13
Dec 02 00:38:02.748 INFO [stderr]     Checking jpeg-decoder v0.1.15
Dec 02 00:38:04.690 INFO [stderr]     Checking tokio-core v0.1.17
Dec 02 00:38:04.989 INFO [stderr]     Checking image v0.19.0
Dec 02 00:38:07.556 INFO [stderr]     Checking tokio-proto v0.1.1
Dec 02 00:38:11.017 INFO [stderr]     Checking zerodmg-utils v0.1.9
Dec 02 00:38:11.474 INFO [stderr]     Checking zerodmg-codes v0.1.9
Dec 02 00:38:12.252 INFO [stderr]     Checking hyper v0.11.27
Dec 02 00:38:12.804 INFO [stderr] error[E0635]: unknown feature `rust_2018_idioms`
Dec 02 00:38:12.804 INFO [stderr]  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/zerodmg-codes-0.1.9/src/lib.rs:2:12
Dec 02 00:38:12.804 INFO [stderr]   |
Dec 02 00:38:12.804 INFO [stderr] 2 | #![feature(rust_2018_idioms)]
Dec 02 00:38:12.804 INFO [stderr]   |            ^^^^^^^^^^^^^^^^
Dec 02 00:38:12.804 INFO [stderr] 
Dec 02 00:38:12.881 INFO [stderr] error: aborting due to previous error
Dec 02 00:38:12.881 INFO [stderr] 
Dec 02 00:38:12.881 INFO [stderr] For more information about this error, try `rustc --explain E0635`.
Dec 02 00:38:12.882 INFO [stderr] error: Could not compile `zerodmg-codes`.
Dec 02 00:38:12.882 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 02 00:38:20.000 INFO [stderr] error: build failed
Dec 02 00:38:20.004 INFO [stderr] su: No module specific data is present
Dec 02 00:38:20.848 INFO running `"docker" "inspect" "8f7b835b9c4c11d832b414419eee1ce47c362870e99dc2bea381c508b2592fee"`
Dec 02 00:38:21.012 INFO running `"docker" "rm" "-f" "8f7b835b9c4c11d832b414419eee1ce47c362870e99dc2bea381c508b2592fee"`
Dec 02 00:38:21.164 INFO [stdout] 8f7b835b9c4c11d832b414419eee1ce47c362870e99dc2bea381c508b2592fee