Dec 01 22:39:33.268 INFO testing brinchj/rust-sudoku-fun against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 01 22:39:33.268 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-2/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/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 01 22:39:33.891 INFO [stdout] a9a1b23981616d49876c2c78183aaea55d22e181c920c3324e4418cf42eabef0
Dec 01 22:39:33.896 INFO running `"docker" "start" "-a" "a9a1b23981616d49876c2c78183aaea55d22e181c920c3324e4418cf42eabef0"`
Dec 01 22:39:34.810 INFO [stderr] usermod: no changes
Dec 01 22:39:35.035 INFO [stderr]    Compiling debug-builders v0.1.0
Dec 01 22:39:35.035 INFO [stderr]    Compiling debugtrace v0.1.0
Dec 01 22:39:35.035 INFO [stderr]    Compiling either v0.1.7
Dec 01 22:39:35.035 INFO [stderr]    Compiling conv v0.3.3
Dec 01 22:39:35.039 INFO [stderr]    Compiling im v10.2.0
Dec 01 22:39:37.415 INFO [stderr]    Compiling backtrace v0.1.8
Dec 01 22:39:40.462 INFO [stderr]    Compiling chomp v0.3.1
Dec 01 22:39:42.864 INFO [stderr]    Compiling sudokusolver v0.1.0 (/source)
Dec 01 22:39:44.115 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 01 22:39:44.115 INFO [stderr]  --> src/lib.rs:1:1
Dec 01 22:39:44.115 INFO [stderr]   |
Dec 01 22:39:44.115 INFO [stderr] 1 | #![feature(iterator_step_by)]
Dec 01 22:39:44.115 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 22:39:44.115 INFO [stderr] 
Dec 01 22:39:44.115 INFO [stderr] error: aborting due to previous error
Dec 01 22:39:44.115 INFO [stderr] 
Dec 01 22:39:44.115 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 01 22:39:44.125 INFO [stderr] error: Could not compile `sudokusolver`.
Dec 01 22:39:44.125 INFO [stderr] 
Dec 01 22:39:44.125 INFO [stderr] To learn more, run the command again with --verbose.
Dec 01 22:39:44.126 INFO [stderr] su: No module specific data is present
Dec 01 22:39:45.056 INFO running `"docker" "inspect" "a9a1b23981616d49876c2c78183aaea55d22e181c920c3324e4418cf42eabef0"`
Dec 01 22:39:45.377 INFO running `"docker" "rm" "-f" "a9a1b23981616d49876c2c78183aaea55d22e181c920c3324e4418cf42eabef0"`
Dec 01 22:39:45.671 INFO [stdout] a9a1b23981616d49876c2c78183aaea55d22e181c920c3324e4418cf42eabef0
