Nov 01 19:50:00.214 INFO testing Lireer/ricochet-robot-solver against beta-2018-10-30 for beta-1.31-1
Nov 01 19:50:00.214 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"`
Nov 01 19:50:00.659 INFO blam! 0c1bd1215547f690fbbff916c83ef0c07e794f3748f29f9495b5d8a7632e1456
Nov 01 19:50:00.669 INFO running `"docker" "start" "-a" "0c1bd1215547f690fbbff916c83ef0c07e794f3748f29f9495b5d8a7632e1456"`
Nov 01 19:50:01.615 INFO kablam! usermod: no changes
Nov 01 19:50:01.679 INFO kablam!    Compiling num-complex v0.1.36
Nov 01 19:50:01.679 INFO kablam!    Compiling ricochet_board v0.1.0 (/source/ricochet_board)
Nov 01 19:50:01.679 INFO kablam!    Compiling num-bigint v0.1.36
Nov 01 19:50:02.983 INFO kablam! warning: variable does not need to be mutable
Nov 01 19:50:02.983 INFO kablam!    --> ricochet_board/src/lib.rs:261:19
Nov 01 19:50:02.983 INFO kablam!     |
Nov 01 19:50:02.983 INFO kablam! 261 |     fn fmt(&self, mut fmt: &mut fmt::Formatter) -> fmt::Result {
Nov 01 19:50:02.983 INFO kablam!     |                   ----^^^
Nov 01 19:50:02.983 INFO kablam!     |                   |
Nov 01 19:50:02.983 INFO kablam!     |                   help: remove this `mut`
Nov 01 19:50:02.986 INFO kablam!     |
Nov 01 19:50:02.986 INFO kablam!     = note: #[warn(unused_mut)] on by default
Nov 01 19:50:02.986 INFO kablam! 
Nov 01 19:50:02.991 INFO kablam! warning: variable does not need to be mutable
Nov 01 19:50:02.991 INFO kablam!    --> ricochet_board/src/lib.rs:272:19
Nov 01 19:50:02.991 INFO kablam!     |
Nov 01 19:50:02.991 INFO kablam! 272 |     fn fmt(&self, mut fmt: &mut fmt::Formatter) -> fmt::Result {
Nov 01 19:50:02.991 INFO kablam!     |                   ----^^^
Nov 01 19:50:02.991 INFO kablam!     |                   |
Nov 01 19:50:02.991 INFO kablam!     |                   help: remove this `mut`
Nov 01 19:50:03.007 INFO kablam! 
Nov 01 19:50:05.079 INFO kablam!    Compiling num-rational v0.1.36
Nov 01 19:50:05.972 INFO kablam!    Compiling num v0.1.37
Nov 01 19:50:06.567 INFO kablam!    Compiling ricochet_solver v0.1.0 (/source/ricochet_solver)
Nov 01 19:50:07.409 INFO kablam! error[E0554]: #![feature] may not be used on the beta release channel
Nov 01 19:50:07.409 INFO kablam!  --> ricochet_solver/src/lib.rs:1:1
Nov 01 19:50:07.409 INFO kablam!   |
Nov 01 19:50:07.409 INFO kablam! 1 | #![feature(box_syntax)]
Nov 01 19:50:07.409 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 19:50:07.409 INFO kablam! 
Nov 01 19:50:07.409 INFO kablam! error: aborting due to previous error
Nov 01 19:50:07.409 INFO kablam! 
Nov 01 19:50:07.409 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Nov 01 19:50:07.412 INFO kablam! error: Could not compile `ricochet_solver`.
Nov 01 19:50:07.412 INFO kablam! 
Nov 01 19:50:07.412 INFO kablam! To learn more, run the command again with --verbose.
Nov 01 19:50:07.413 INFO kablam! su: No module specific data is present
Nov 01 19:50:08.171 INFO running `"docker" "rm" "-f" "0c1bd1215547f690fbbff916c83ef0c07e794f3748f29f9495b5d8a7632e1456"`
Nov 01 19:50:08.467 INFO blam! 0c1bd1215547f690fbbff916c83ef0c07e794f3748f29f9495b5d8a7632e1456
