Dec 03 13:07:59.789 INFO testing elba-0.2.0 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 03 13:07:59.789 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-7/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/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 03 13:08:00.219 INFO [stdout] 02b493a9e929991d028b7ebb4b9c7ca3d3462d21bbff205245f1c1cb53c323e8
Dec 03 13:08:00.223 INFO running `"docker" "start" "-a" "02b493a9e929991d028b7ebb4b9c7ca3d3462d21bbff205245f1c1cb53c323e8"`
Dec 03 13:08:01.515 INFO [stderr] usermod: no changes
Dec 03 13:08:02.170 INFO [stderr]    Compiling slog-term v2.4.0
Dec 03 13:08:02.170 INFO [stderr]    Compiling sha2 v0.7.1
Dec 03 13:08:02.183 INFO [stderr]    Compiling config v0.9.1
Dec 03 13:08:02.187 INFO [stderr]    Compiling crossbeam-channel v0.2.6
Dec 03 13:08:02.187 INFO [stderr]    Compiling tokio-core v0.1.17
Dec 03 13:08:09.363 INFO [stderr]    Compiling crossbeam v0.4.1
Dec 03 13:08:15.487 INFO [stderr]    Compiling hyper v0.11.27
Dec 03 13:08:15.487 INFO [stderr]    Compiling tokio-tls v0.1.4
Dec 03 13:08:33.011 INFO [stderr]    Compiling hyper-tls v0.1.4
Dec 03 13:08:38.505 INFO [stderr]    Compiling reqwest v0.8.8
Dec 03 13:08:53.413 INFO [stderr]    Compiling elba v0.2.0 (/source)
Dec 03 13:09:05.785 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 03 13:09:05.785 INFO [stderr]  --> src/lib/lib.rs:1:1
Dec 03 13:09:05.785 INFO [stderr]   |
Dec 03 13:09:05.785 INFO [stderr] 1 | #![feature(nll)]
Dec 03 13:09:05.785 INFO [stderr]   | ^^^^^^^^^^^^^^^^
Dec 03 13:09:05.785 INFO [stderr] 
Dec 03 13:09:05.817 INFO [stderr] error: aborting due to previous error
Dec 03 13:09:05.817 INFO [stderr] 
Dec 03 13:09:05.817 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 03 13:09:05.859 INFO [stderr] error: Could not compile `elba`.
Dec 03 13:09:05.859 INFO [stderr] 
Dec 03 13:09:05.859 INFO [stderr] To learn more, run the command again with --verbose.
Dec 03 13:09:05.861 INFO [stderr] su: No module specific data is present
Dec 03 13:09:07.211 INFO running `"docker" "inspect" "02b493a9e929991d028b7ebb4b9c7ca3d3462d21bbff205245f1c1cb53c323e8"`
Dec 03 13:09:07.515 INFO running `"docker" "rm" "-f" "02b493a9e929991d028b7ebb4b9c7ca3d3462d21bbff205245f1c1cb53c323e8"`
Dec 03 13:09:07.810 INFO [stdout] 02b493a9e929991d028b7ebb4b9c7ca3d3462d21bbff205245f1c1cb53c323e8