Dec 03 05:56:28.893 INFO testing hexagon-0.1.2 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 03 05:56:28.893 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 03 05:56:29.068 INFO [stdout] 071d854899cd9148eaa57c797f8d41d4f179de48ce01d971998d9f1bfc4bb34d
Dec 03 05:56:29.072 INFO running `"docker" "start" "-a" "071d854899cd9148eaa57c797f8d41d4f179de48ce01d971998d9f1bfc4bb34d"`
Dec 03 05:56:29.438 INFO [stderr] usermod: no changes
Dec 03 05:56:29.482 INFO [stderr]    Compiling bincode v0.9.2
Dec 03 05:56:30.456 INFO [stderr]    Compiling hexagon v0.1.2 (/source)
Dec 03 05:56:31.495 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 03 05:56:31.495 INFO [stderr]  --> src/lib.rs:1:1
Dec 03 05:56:31.495 INFO [stderr]   |
Dec 03 05:56:31.495 INFO [stderr] 1 | #![feature(nll)]
Dec 03 05:56:31.495 INFO [stderr]   | ^^^^^^^^^^^^^^^^
Dec 03 05:56:31.495 INFO [stderr] 
Dec 03 05:56:31.495 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 03 05:56:31.495 INFO [stderr]  --> src/lib.rs:3:1
Dec 03 05:56:31.495 INFO [stderr]   |
Dec 03 05:56:31.495 INFO [stderr] 3 | #![feature(test)]
Dec 03 05:56:31.495 INFO [stderr]   | ^^^^^^^^^^^^^^^^^
Dec 03 05:56:31.495 INFO [stderr] 
Dec 03 05:56:31.502 INFO [stderr] error: aborting due to 2 previous errors
Dec 03 05:56:31.503 INFO [stderr] 
Dec 03 05:56:31.503 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 03 05:56:31.516 INFO [stderr] error: Could not compile `hexagon`.
Dec 03 05:56:31.516 INFO [stderr] 
Dec 03 05:56:31.516 INFO [stderr] To learn more, run the command again with --verbose.
Dec 03 05:56:31.516 INFO [stderr] su: No module specific data is present
Dec 03 05:56:32.036 INFO running `"docker" "inspect" "071d854899cd9148eaa57c797f8d41d4f179de48ce01d971998d9f1bfc4bb34d"`
Dec 03 05:56:32.267 INFO running `"docker" "rm" "-f" "071d854899cd9148eaa57c797f8d41d4f179de48ce01d971998d9f1bfc4bb34d"`
Dec 03 05:56:32.447 INFO [stdout] 071d854899cd9148eaa57c797f8d41d4f179de48ce01d971998d9f1bfc4bb34d