Dec 03 16:19:24.432 INFO testing chess_clock-0.1.1 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 03 16:19:24.432 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-0/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/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 16:19:24.907 INFO [stdout] 2e10b8ee9a2c65e7b7f6dc00bdb3451abfaf3850e2baa65d1756f50867f0bcf7
Dec 03 16:19:24.909 INFO running `"docker" "start" "-a" "2e10b8ee9a2c65e7b7f6dc00bdb3451abfaf3850e2baa65d1756f50867f0bcf7"`
Dec 03 16:19:27.083 INFO [stderr] usermod: no changes
Dec 03 16:19:27.328 INFO [stderr]    Compiling chess_clock v0.1.1 (/source)
Dec 03 16:19:32.222 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 03 16:19:32.222 INFO [stderr]   --> src/lib.rs:65:1
Dec 03 16:19:32.222 INFO [stderr]    |
Dec 03 16:19:32.222 INFO [stderr] 65 | #![feature(duration_as_u128)]
Dec 03 16:19:32.222 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 03 16:19:32.222 INFO [stderr] 
Dec 03 16:19:32.223 INFO [stderr] error: aborting due to previous error
Dec 03 16:19:32.223 INFO [stderr] 
Dec 03 16:19:32.223 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 03 16:19:32.239 INFO [stderr] error: Could not compile `chess_clock`.
Dec 03 16:19:32.239 INFO [stderr] 
Dec 03 16:19:32.239 INFO [stderr] To learn more, run the command again with --verbose.
Dec 03 16:19:32.241 INFO [stderr] su: No module specific data is present
Dec 03 16:19:33.500 INFO running `"docker" "inspect" "2e10b8ee9a2c65e7b7f6dc00bdb3451abfaf3850e2baa65d1756f50867f0bcf7"`
Dec 03 16:19:33.773 INFO running `"docker" "rm" "-f" "2e10b8ee9a2c65e7b7f6dc00bdb3451abfaf3850e2baa65d1756f50867f0bcf7"`
Dec 03 16:19:34.059 INFO [stdout] 2e10b8ee9a2c65e7b7f6dc00bdb3451abfaf3850e2baa65d1756f50867f0bcf7