Dec 02 08:02:35.088 INFO testing Emberwalker/drakonid-rs against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 02 08:02:35.088 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-4/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/beta-1.31-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/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 +8940af3cea4a9a9deabcaf843b2f8cad9a83fc61-alt 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 08:02:35.532 INFO [stdout] 6d0df6cdac31d4fdac2d849504b56baa7ca44a69acd13c0be6873399526e62bf
Dec 02 08:02:35.539 INFO running `"docker" "start" "-a" "6d0df6cdac31d4fdac2d849504b56baa7ca44a69acd13c0be6873399526e62bf"`
Dec 02 08:02:36.539 INFO [stderr] usermod: no changes
Dec 02 08:02:37.067 INFO [stderr]    Compiling sliding_windows v3.0.0
Dec 02 08:02:37.067 INFO [stderr]    Compiling fern v0.5.5
Dec 02 08:02:37.073 INFO [stderr]    Compiling parking_lot_core v0.2.14
Dec 02 08:02:37.083 INFO [stderr]    Compiling threadpool v1.7.1
Dec 02 08:02:37.084 INFO [stderr]    Compiling fuzzy_match v0.1.1
Dec 02 08:02:37.084 INFO [stderr]    Compiling mashup-impl v0.1.3
Dec 02 08:02:37.087 INFO [stderr]    Compiling flate2 v1.0.1
Dec 02 08:02:37.087 INFO [stderr]    Compiling chrono v0.4.2
Dec 02 08:02:39.607 INFO [stderr]    Compiling evzht9h3nznqzwl v0.0.3
Dec 02 08:02:40.811 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 02 08:02:40.811 INFO [stderr]   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/parking_lot_core-0.2.14/src/lib.rs:41:60
Dec 02 08:02:40.811 INFO [stderr]    |
Dec 02 08:02:40.811 INFO [stderr] 41 | #![cfg_attr(all(feature = "nightly", target_os = "linux"), feature(integer_atomics))]
Dec 02 08:02:40.811 INFO [stderr]    |                                                            ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 08:02:40.815 INFO [stderr] 
Dec 02 08:02:40.825 INFO [stderr] error: aborting due to previous error
Dec 02 08:02:40.831 INFO [stderr] 
Dec 02 08:02:40.831 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 08:02:40.871 INFO [stderr] error: Could not compile `parking_lot_core`.
Dec 02 08:02:40.871 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 02 08:02:52.935 INFO [stderr] error: build failed
Dec 02 08:02:52.935 INFO [stderr] su: No module specific data is present
Dec 02 08:02:53.760 INFO running `"docker" "inspect" "6d0df6cdac31d4fdac2d849504b56baa7ca44a69acd13c0be6873399526e62bf"`
Dec 02 08:02:54.052 INFO running `"docker" "rm" "-f" "6d0df6cdac31d4fdac2d849504b56baa7ca44a69acd13c0be6873399526e62bf"`
Dec 02 08:02:54.327 INFO [stdout] 6d0df6cdac31d4fdac2d849504b56baa7ca44a69acd13c0be6873399526e62bf