Nov 02 13:22:54.759 INFO testing libmcs-0.1.0 against 1.30.0 for beta-1.31-1
Nov 02 13:22:54.760 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-1/worker-1/1.30.0:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/beta-1.31-1/1.30.0:/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 +1.30.0 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"`
Nov 02 13:22:55.143 INFO blam! 5f35125274ffcf95e4d024bdc4925fb94595e11d582c6fcb71634e88827d4103
Nov 02 13:22:55.147 INFO running `"docker" "start" "-a" "5f35125274ffcf95e4d024bdc4925fb94595e11d582c6fcb71634e88827d4103"`
Nov 02 13:22:56.103 INFO kablam! usermod: no changes
Nov 02 13:22:56.150 INFO kablam!    Compiling libmcs v0.1.0 (/source)
Nov 02 13:22:56.699 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Nov 02 13:22:56.699 INFO kablam!   --> src/lib.rs:15:1
Nov 02 13:22:56.699 INFO kablam!    |
Nov 02 13:22:56.699 INFO kablam! 15 | #![feature(optin_builtin_traits)]
Nov 02 13:22:56.699 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 13:22:56.699 INFO kablam! 
Nov 02 13:22:56.699 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Nov 02 13:22:56.699 INFO kablam!   --> src/lib.rs:16:1
Nov 02 13:22:56.699 INFO kablam!    |
Nov 02 13:22:56.699 INFO kablam! 16 | #![feature(const_fn)]
Nov 02 13:22:56.699 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^
Nov 02 13:22:56.699 INFO kablam! 
Nov 02 13:22:56.700 INFO kablam! error: aborting due to 2 previous errors
Nov 02 13:22:56.700 INFO kablam! 
Nov 02 13:22:56.700 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Nov 02 13:22:56.700 INFO kablam! error: Could not compile `libmcs`.
Nov 02 13:22:56.700 INFO kablam! 
Nov 02 13:22:56.700 INFO kablam! To learn more, run the command again with --verbose.
Nov 02 13:22:56.700 INFO kablam! su: No module specific data is present
Nov 02 13:22:57.317 INFO running `"docker" "rm" "-f" "5f35125274ffcf95e4d024bdc4925fb94595e11d582c6fcb71634e88827d4103"`
Nov 02 13:22:57.519 INFO blam! 5f35125274ffcf95e4d024bdc4925fb94595e11d582c6fcb71634e88827d4103
