Dec 02 10:12:57.280 INFO testing zerodrop-0.1.4 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 02 10:12:57.280 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-6/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/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 10:12:57.760 INFO [stdout] 533a46cbe3c34bb36551c22f8bda8bb0798ac4150b61e15d6565f43a5c56f8cb
Dec 02 10:12:57.766 INFO running `"docker" "start" "-a" "533a46cbe3c34bb36551c22f8bda8bb0798ac4150b61e15d6565f43a5c56f8cb"`
Dec 02 10:12:59.122 INFO [stderr] usermod: no changes
Dec 02 10:12:59.199 INFO [stderr]    Compiling consistenttime v0.2.0
Dec 02 10:12:59.635 INFO [stderr]    Compiling zerodrop v0.1.4 (/source)
Dec 02 10:13:00.127 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 02 10:13:00.127 INFO [stderr]  --> src/lib.rs:5:1
Dec 02 10:13:00.127 INFO [stderr]   |
Dec 02 10:13:00.127 INFO [stderr] 5 | #![feature(core_intrinsics)]
Dec 02 10:13:00.127 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 10:13:00.127 INFO [stderr] 
Dec 02 10:13:00.127 INFO [stderr] error: aborting due to previous error
Dec 02 10:13:00.127 INFO [stderr] 
Dec 02 10:13:00.127 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 10:13:00.127 INFO [stderr] error: Could not compile `zerodrop`.
Dec 02 10:13:00.127 INFO [stderr] 
Dec 02 10:13:00.128 INFO [stderr] To learn more, run the command again with --verbose.
Dec 02 10:13:00.129 INFO [stderr] su: No module specific data is present
Dec 02 10:13:01.619 INFO running `"docker" "inspect" "533a46cbe3c34bb36551c22f8bda8bb0798ac4150b61e15d6565f43a5c56f8cb"`
Dec 02 10:13:01.968 INFO running `"docker" "rm" "-f" "533a46cbe3c34bb36551c22f8bda8bb0798ac4150b61e15d6565f43a5c56f8cb"`
Dec 02 10:13:02.351 INFO [stdout] 533a46cbe3c34bb36551c22f8bda8bb0798ac4150b61e15d6565f43a5c56f8cb