Nov 02 23:04:36.998 INFO testing crypto-currency-0.0.2 against 1.30.0 for beta-1.31-1
Nov 02 23:04:36.998 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-1/worker-2/1.30.0:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/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 23:04:37.221 INFO blam! 1d0c107ff919f698da863727bd69546f2f637f8f4b243141ed9e3441a8f585c4
Nov 02 23:04:37.223 INFO running `"docker" "start" "-a" "1d0c107ff919f698da863727bd69546f2f637f8f4b243141ed9e3441a8f585c4"`
Nov 02 23:04:37.623 INFO kablam! usermod: no changes
Nov 02 23:04:37.669 INFO kablam!    Compiling crypto-currency v0.0.2 (/source)
Nov 02 23:04:39.765 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Nov 02 23:04:39.766 INFO kablam!  --> src/lib.rs:3:1
Nov 02 23:04:39.766 INFO kablam!   |
Nov 02 23:04:39.766 INFO kablam! 3 | #![feature(try_from)]
Nov 02 23:04:39.766 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^
Nov 02 23:04:39.766 INFO kablam! 
Nov 02 23:04:39.795 INFO kablam! error: aborting due to previous error
Nov 02 23:04:39.795 INFO kablam! 
Nov 02 23:04:39.796 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Nov 02 23:04:39.808 INFO kablam! error: Could not compile `crypto-currency`.
Nov 02 23:04:39.808 INFO kablam! 
Nov 02 23:04:39.808 INFO kablam! To learn more, run the command again with --verbose.
Nov 02 23:04:39.810 INFO kablam! su: No module specific data is present
Nov 02 23:04:40.193 INFO running `"docker" "rm" "-f" "1d0c107ff919f698da863727bd69546f2f637f8f4b243141ed9e3441a8f585c4"`
Nov 02 23:04:40.262 INFO blam! 1d0c107ff919f698da863727bd69546f2f637f8f4b243141ed9e3441a8f585c4
