Oct 31 17:32:59.608 INFO testing vadixidav/uniqtree against beta-2018-10-30 for beta-1.31-1
Oct 31 17:32:59.608 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-1/worker-6/beta-2018-10-30:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/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 17:33:00.201 INFO blam! 61c8112505b132b3ffe44421ba692ec1651c4be655f07a696491e4917e14beef
Oct 31 17:33:00.203 INFO running `"docker" "start" "-a" "61c8112505b132b3ffe44421ba692ec1651c4be655f07a696491e4917e14beef"`
Oct 31 17:33:01.427 INFO kablam! usermod: no changes
Oct 31 17:33:01.475 INFO kablam!    Compiling uniqtree v0.1.0 (/source)
Oct 31 17:33:01.703 INFO kablam! error[E0554]: #![feature] may not be used on the beta release channel
Oct 31 17:33:01.703 INFO kablam!  --> src/main.rs:1:1
Oct 31 17:33:01.703 INFO kablam!   |
Oct 31 17:33:01.703 INFO kablam! 1 | #![feature(slice_patterns)]
Oct 31 17:33:01.703 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 17:33:01.703 INFO kablam! 
Oct 31 17:33:01.703 INFO kablam! error: aborting due to previous error
Oct 31 17:33:01.703 INFO kablam! 
Oct 31 17:33:01.703 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Oct 31 17:33:01.707 INFO kablam! error: Could not compile `uniqtree`.
Oct 31 17:33:01.708 INFO kablam! 
Oct 31 17:33:01.708 INFO kablam! To learn more, run the command again with --verbose.
Oct 31 17:33:01.715 INFO kablam! su: No module specific data is present
Oct 31 17:33:02.387 INFO running `"docker" "rm" "-f" "61c8112505b132b3ffe44421ba692ec1651c4be655f07a696491e4917e14beef"`
Oct 31 17:33:02.667 INFO blam! 61c8112505b132b3ffe44421ba692ec1651c4be655f07a696491e4917e14beef
