Dec 03 11:26:23.140 INFO testing fs-trie-0.1.4 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 03 11:26:23.140 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/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 11:26:23.499 INFO [stdout] 8f9adf5b7db1826bf5f8ccf205d51c46f73b65189049b9eb4211f46b95649b2e
Dec 03 11:26:23.503 INFO running `"docker" "start" "-a" "8f9adf5b7db1826bf5f8ccf205d51c46f73b65189049b9eb4211f46b95649b2e"`
Dec 03 11:26:24.059 INFO [stderr] usermod: no changes
Dec 03 11:26:24.137 INFO [stderr]    Compiling fs-trie v0.1.4 (/source)
Dec 03 11:26:24.831 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 03 11:26:24.831 INFO [stderr]   --> src/lib.rs:24:1
Dec 03 11:26:24.831 INFO [stderr]    |
Dec 03 11:26:24.831 INFO [stderr] 24 | #![feature(box_patterns)]
Dec 03 11:26:24.831 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 03 11:26:24.831 INFO [stderr] 
Dec 03 11:26:24.831 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 03 11:26:24.831 INFO [stderr]   --> src/lib.rs:25:1
Dec 03 11:26:24.831 INFO [stderr]    |
Dec 03 11:26:24.831 INFO [stderr] 25 | #![feature(test)]
Dec 03 11:26:24.831 INFO [stderr]    | ^^^^^^^^^^^^^^^^^
Dec 03 11:26:24.831 INFO [stderr] 
Dec 03 11:26:24.831 INFO [stderr] error: aborting due to 2 previous errors
Dec 03 11:26:24.831 INFO [stderr] 
Dec 03 11:26:24.831 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 03 11:26:24.834 INFO [stderr] error: Could not compile `fs-trie`.
Dec 03 11:26:24.834 INFO [stderr] 
Dec 03 11:26:24.834 INFO [stderr] To learn more, run the command again with --verbose.
Dec 03 11:26:24.835 INFO [stderr] su: No module specific data is present
Dec 03 11:26:25.268 INFO running `"docker" "inspect" "8f9adf5b7db1826bf5f8ccf205d51c46f73b65189049b9eb4211f46b95649b2e"`
Dec 03 11:26:25.475 INFO running `"docker" "rm" "-f" "8f9adf5b7db1826bf5f8ccf205d51c46f73b65189049b9eb4211f46b95649b2e"`
Dec 03 11:26:25.712 INFO [stdout] 8f9adf5b7db1826bf5f8ccf205d51c46f73b65189049b9eb4211f46b95649b2e