Nov 01 19:02:16.136 INFO testing NotIntMan/BBS-method against 1.30.0 for beta-1.31-1
Nov 01 19:02:16.136 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-1/worker-4/1.30.0:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/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 01 19:02:16.640 INFO blam! 1ec0c1c114588f44e7cd6449258e453e4835f4bebb3a4068ce802bf6ed502399
Nov 01 19:02:16.649 INFO running `"docker" "start" "-a" "1ec0c1c114588f44e7cd6449258e453e4835f4bebb3a4068ce802bf6ed502399"`
Nov 01 19:02:17.322 INFO kablam! usermod: no changes
Nov 01 19:02:17.357 INFO kablam!    Compiling lab2 v0.1.0 (/source)
Nov 01 19:02:17.768 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Nov 01 19:02:17.768 INFO kablam!  --> src/main.rs:1:1
Nov 01 19:02:17.768 INFO kablam!   |
Nov 01 19:02:17.768 INFO kablam! 1 | #![feature(try_from)]
Nov 01 19:02:17.768 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^
Nov 01 19:02:17.768 INFO kablam! 
Nov 01 19:02:17.768 INFO kablam! error: aborting due to previous error
Nov 01 19:02:17.768 INFO kablam! 
Nov 01 19:02:17.768 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Nov 01 19:02:17.772 INFO kablam! error: Could not compile `lab2`.
Nov 01 19:02:17.772 INFO kablam! 
Nov 01 19:02:17.772 INFO kablam! To learn more, run the command again with --verbose.
Nov 01 19:02:17.773 INFO kablam! su: No module specific data is present
Nov 01 19:02:18.121 INFO running `"docker" "rm" "-f" "1ec0c1c114588f44e7cd6449258e453e4835f4bebb3a4068ce802bf6ed502399"`
Nov 01 19:02:18.256 INFO blam! 1ec0c1c114588f44e7cd6449258e453e4835f4bebb3a4068ce802bf6ed502399
