Dec 02 20:16:26.691 INFO testing riker-patterns-0.1.8 against 1.30.1 for beta-1.31-5
Dec 02 20:16:26.692 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-7/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/beta-1.31-5/1.30.1:/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 +1.30.1 build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 02 20:16:27.392 INFO [stdout] 7697f9ae5213b7d52c8c60518a95e3c9b5549b9591ad4670829e440171131b5a
Dec 02 20:16:27.395 INFO running `"docker" "start" "-a" "7697f9ae5213b7d52c8c60518a95e3c9b5549b9591ad4670829e440171131b5a"`
Dec 02 20:16:28.606 INFO [stderr] usermod: no changes
Dec 02 20:16:28.823 INFO [stderr]    Compiling futures-core-preview v0.2.3
Dec 02 20:16:28.863 INFO [stderr]    Compiling config v0.8.0
Dec 02 20:16:30.490 INFO [stderr]    Compiling futures-channel-preview v0.2.2
Dec 02 20:16:30.490 INFO [stderr]    Compiling futures-io-preview v0.2.2
Dec 02 20:16:32.671 INFO [stderr]    Compiling futures-sink-preview v0.2.2
Dec 02 20:16:33.635 INFO [stderr]    Compiling futures-util-preview v0.2.2
Dec 02 20:16:37.484 INFO [stderr]    Compiling futures-executor-preview v0.2.2
Dec 02 20:16:39.518 INFO [stderr]    Compiling futures-stable-preview v0.2.3
Dec 02 20:16:39.614 INFO [stderr]    Compiling futures-async-runtime-preview v0.2.3
Dec 02 20:16:39.677 INFO [stderr]    Compiling futures-preview v0.2.2
Dec 02 20:16:40.775 INFO [stderr]    Compiling riker v0.1.8
Dec 02 20:16:44.419 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 02 20:16:44.419 INFO [stderr]  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/riker-0.1.8/src/lib.rs:2:1
Dec 02 20:16:44.419 INFO [stderr]   |
Dec 02 20:16:44.419 INFO [stderr] 2 | #![feature(assoc_unix_epoch)]
Dec 02 20:16:44.419 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 20:16:44.419 INFO [stderr] 
Dec 02 20:16:44.425 INFO [stderr] error: aborting due to previous error
Dec 02 20:16:44.425 INFO [stderr] 
Dec 02 20:16:44.425 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 20:16:44.438 INFO [stderr] error: Could not compile `riker`.
Dec 02 20:16:44.438 INFO [stderr] 
Dec 02 20:16:44.438 INFO [stderr] To learn more, run the command again with --verbose.
Dec 02 20:16:44.443 INFO [stderr] su: No module specific data is present
Dec 02 20:16:45.159 INFO running `"docker" "inspect" "7697f9ae5213b7d52c8c60518a95e3c9b5549b9591ad4670829e440171131b5a"`
Dec 02 20:16:45.357 INFO running `"docker" "rm" "-f" "7697f9ae5213b7d52c8c60518a95e3c9b5549b9591ad4670829e440171131b5a"`
Dec 02 20:16:45.635 INFO [stdout] 7697f9ae5213b7d52c8c60518a95e3c9b5549b9591ad4670829e440171131b5a