Dec 02 09:54:21.644 INFO testing 46bit/seequence against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 02 09:54:21.644 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 09:54:22.299 INFO [stdout] d1a91c4efe77b27084671e9dff2bd2bd65ba0c9080ae9ffde5015a7d6a5cac20
Dec 02 09:54:22.304 INFO running `"docker" "start" "-a" "d1a91c4efe77b27084671e9dff2bd2bd65ba0c9080ae9ffde5015a7d6a5cac20"`
Dec 02 09:54:23.735 INFO [stderr] usermod: no changes
Dec 02 09:54:24.067 INFO [stderr]    Compiling net2 v0.2.26
Dec 02 09:54:24.067 INFO [stderr]    Compiling futures v0.1.10
Dec 02 09:54:24.075 INFO [stderr]    Compiling uuid v0.3.1
Dec 02 09:54:27.527 INFO [stderr]    Compiling mio v0.6.4
Dec 02 09:54:31.585 INFO [stderr]    Compiling tokio-service v0.1.0
Dec 02 09:54:33.663 INFO [stderr]    Compiling tokio-core v0.1.4
Dec 02 09:54:37.532 INFO [stderr]    Compiling tokio-proto v0.1.0
Dec 02 09:54:40.387 INFO [stderr]    Compiling seequence v0.1.0 (/source)
Dec 02 09:54:42.275 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 02 09:54:42.275 INFO [stderr]  --> src/lib.rs:1:1
Dec 02 09:54:42.275 INFO [stderr]   |
Dec 02 09:54:42.275 INFO [stderr] 1 | #![feature(custom_attribute)]
Dec 02 09:54:42.275 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 09:54:42.275 INFO [stderr] 
Dec 02 09:54:42.278 INFO [stderr] error: aborting due to previous error
Dec 02 09:54:42.278 INFO [stderr] 
Dec 02 09:54:42.279 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 09:54:42.302 INFO [stderr] error: Could not compile `seequence`.
Dec 02 09:54:42.303 INFO [stderr] 
Dec 02 09:54:42.303 INFO [stderr] To learn more, run the command again with --verbose.
Dec 02 09:54:42.303 INFO [stderr] su: No module specific data is present
Dec 02 09:54:43.093 INFO running `"docker" "inspect" "d1a91c4efe77b27084671e9dff2bd2bd65ba0c9080ae9ffde5015a7d6a5cac20"`
Dec 02 09:54:43.448 INFO running `"docker" "rm" "-f" "d1a91c4efe77b27084671e9dff2bd2bd65ba0c9080ae9ffde5015a7d6a5cac20"`
Dec 02 09:54:43.806 INFO [stdout] d1a91c4efe77b27084671e9dff2bd2bd65ba0c9080ae9ffde5015a7d6a5cac20