Dec 02 20:07:26.993 INFO testing rmcmc-0.1.0 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 02 20:07:26.994 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 20:07:27.281 INFO [stdout] 164035cc9eba8554a1fc401f8d8d6ad955f713e11842eb93d736d36b0e577ffd
Dec 02 20:07:27.288 INFO running `"docker" "start" "-a" "164035cc9eba8554a1fc401f8d8d6ad955f713e11842eb93d736d36b0e577ffd"`
Dec 02 20:07:28.476 INFO [stderr] usermod: no changes
Dec 02 20:07:28.651 INFO [stderr]    Compiling rv v0.4.1
Dec 02 20:07:33.993 INFO [stderr]    Compiling rmcmc v0.1.0 (/source)
Dec 02 20:07:35.515 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 02 20:07:35.515 INFO [stderr]  --> src/lib.rs:1:1
Dec 02 20:07:35.515 INFO [stderr]   |
Dec 02 20:07:35.515 INFO [stderr] 1 | #![feature(associated_type_defaults)]
Dec 02 20:07:35.515 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 20:07:35.515 INFO [stderr] 
Dec 02 20:07:35.515 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 02 20:07:35.515 INFO [stderr]  --> src/lib.rs:2:1
Dec 02 20:07:35.515 INFO [stderr]   |
Dec 02 20:07:35.515 INFO [stderr] 2 | #![feature(test)]
Dec 02 20:07:35.515 INFO [stderr]   | ^^^^^^^^^^^^^^^^^
Dec 02 20:07:35.516 INFO [stderr] 
Dec 02 20:07:35.516 INFO [stderr] error: aborting due to 2 previous errors
Dec 02 20:07:35.516 INFO [stderr] 
Dec 02 20:07:35.516 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 20:07:35.524 INFO [stderr] error: Could not compile `rmcmc`.
Dec 02 20:07:35.524 INFO [stderr] 
Dec 02 20:07:35.524 INFO [stderr] To learn more, run the command again with --verbose.
Dec 02 20:07:35.526 INFO [stderr] su: No module specific data is present
Dec 02 20:07:36.329 INFO running `"docker" "inspect" "164035cc9eba8554a1fc401f8d8d6ad955f713e11842eb93d736d36b0e577ffd"`
Dec 02 20:07:36.541 INFO running `"docker" "rm" "-f" "164035cc9eba8554a1fc401f8d8d6ad955f713e11842eb93d736d36b0e577ffd"`
Dec 02 20:07:36.739 INFO [stdout] 164035cc9eba8554a1fc401f8d8d6ad955f713e11842eb93d736d36b0e577ffd