Oct 31 17:51:17.781 INFO testing u2/leetcode-rust against beta-2018-10-30 for beta-1.31-1
Oct 31 17:51:17.781 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-1/worker-7/beta-2018-10-30:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/beta-1.31-1/beta-2018-10-30:/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 +beta-2018-10-30 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"`
Oct 31 17:51:18.263 INFO blam! 8d46753c9a64c5f7bc801bf410f726ef22e455954a729386a170f5a5fdaffcf0
Oct 31 17:51:18.264 INFO running `"docker" "start" "-a" "8d46753c9a64c5f7bc801bf410f726ef22e455954a729386a170f5a5fdaffcf0"`
Oct 31 17:51:19.082 INFO kablam! usermod: no changes
Oct 31 17:51:19.195 INFO kablam!    Compiling leetcode v0.1.0 (/source)
Oct 31 17:51:19.572 INFO kablam! error[E0554]: #![feature] may not be used on the beta release channel
Oct 31 17:51:19.572 INFO kablam!  --> src/lib.rs:1:1
Oct 31 17:51:19.572 INFO kablam!   |
Oct 31 17:51:19.572 INFO kablam! 1 | #![feature(test)]
Oct 31 17:51:19.572 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Oct 31 17:51:19.572 INFO kablam! 
Oct 31 17:51:19.575 INFO kablam! error: aborting due to previous error
Oct 31 17:51:19.575 INFO kablam! 
Oct 31 17:51:19.575 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Oct 31 17:51:19.582 INFO kablam! error: Could not compile `leetcode`.
Oct 31 17:51:19.582 INFO kablam! 
Oct 31 17:51:19.582 INFO kablam! To learn more, run the command again with --verbose.
Oct 31 17:51:19.591 INFO kablam! su: No module specific data is present
Oct 31 17:51:20.447 INFO running `"docker" "rm" "-f" "8d46753c9a64c5f7bc801bf410f726ef22e455954a729386a170f5a5fdaffcf0"`
Oct 31 17:51:20.735 INFO blam! 8d46753c9a64c5f7bc801bf410f726ef22e455954a729386a170f5a5fdaffcf0
