Aug 01 23:11:30.417 INFO checking rx-0.0.1 against 1.27.2 for lazy_static-1
Aug 01 23:11:30.417 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 23:11:30.417 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 23:11:30.417 INFO running `"docker" "create" "-v" "/tmp/crater.mAHX0H7HGQoo:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-0/1.27.2:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home/git:/cargo-home/git:rw,Z" "-e" "USER_ID=500" "-e" "CMD=cargo +1.27.2 check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "crater"`
Aug 01 23:11:30.706 INFO blam! 8a00472c965720eda9c82d6a3da526709ce1c65824c98e4fb70df55077041be7
Aug 01 23:11:30.708 INFO running `"docker" "start" "-a" "8a00472c965720eda9c82d6a3da526709ce1c65824c98e4fb70df55077041be7"`
Aug 01 23:11:32.454 INFO kablam!     Checking rx v0.0.1 (file:///source)
Aug 01 23:11:33.081 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 23:11:33.081 INFO kablam!   --> src/lib.rs:16:1
Aug 01 23:11:33.081 INFO kablam!    |
Aug 01 23:11:33.081 INFO kablam! 16 | #![feature(fn_traits, unboxed_closures)]
Aug 01 23:11:33.081 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 23:11:33.082 INFO kablam! 
Aug 01 23:11:33.082 INFO kablam! error: aborting due to previous error
Aug 01 23:11:33.082 INFO kablam! 
Aug 01 23:11:33.082 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 23:11:33.089 INFO kablam! error: Could not compile `rx`.
Aug 01 23:11:33.090 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 23:11:33.308 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 23:11:33.308 INFO kablam!   --> src/lib.rs:16:1
Aug 01 23:11:33.308 INFO kablam!    |
Aug 01 23:11:33.308 INFO kablam! 16 | #![feature(fn_traits, unboxed_closures)]
Aug 01 23:11:33.308 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 23:11:33.308 INFO kablam! 
Aug 01 23:11:33.313 INFO kablam! error: aborting due to previous error
Aug 01 23:11:33.318 INFO kablam! 
Aug 01 23:11:33.319 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 23:11:33.341 INFO kablam! error: Could not compile `rx`.
Aug 01 23:11:33.341 INFO kablam! 
Aug 01 23:11:33.341 INFO kablam! To learn more, run the command again with --verbose.
Aug 01 23:11:33.342 INFO kablam! su: No module specific data is present
Aug 01 23:11:34.290 INFO running `"docker" "rm" "-f" "8a00472c965720eda9c82d6a3da526709ce1c65824c98e4fb70df55077041be7"`
Aug 01 23:11:34.473 INFO blam! 8a00472c965720eda9c82d6a3da526709ce1c65824c98e4fb70df55077041be7