Aug 01 19:17:28.610 INFO checking virtual_view_dom-0.2.1 against 1.27.2 for lazy_static-1
Aug 01 19:17:28.610 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 19:17:28.610 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 19:17:28.610 INFO running `"docker" "create" "-v" "/tmp/crater.jUazq0wKgr6X:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-4/1.27.2:/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 19:17:28.852 INFO blam! 97640c20c37b2470979ad455368800881c03d5d217df69b00f97a30e9327bf9d
Aug 01 19:17:28.853 INFO running `"docker" "start" "-a" "97640c20c37b2470979ad455368800881c03d5d217df69b00f97a30e9327bf9d"`
Aug 01 19:17:29.791 INFO kablam!    Compiling stdweb v0.4.8
Aug 01 19:17:29.791 INFO kablam!     Checking discard v1.0.3
Aug 01 19:17:29.792 INFO kablam!    Compiling syn v0.12.15
Aug 01 19:17:29.796 INFO kablam!     Checking messenger v0.1.0
Aug 01 19:17:31.339 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 19:17:31.339 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/messenger-0.1.0/src/lib.rs:1:1
Aug 01 19:17:31.339 INFO kablam!   |
Aug 01 19:17:31.339 INFO kablam! 1 | #![feature(integer_atomics)]
Aug 01 19:17:31.339 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 19:17:31.344 INFO kablam! 
Aug 01 19:17:31.345 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 19:17:31.345 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/messenger-0.1.0/src/lib.rs:2:1
Aug 01 19:17:31.345 INFO kablam!   |
Aug 01 19:17:31.345 INFO kablam! 2 | #![feature(conservative_impl_trait)]
Aug 01 19:17:31.345 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 19:17:31.345 INFO kablam! 
Aug 01 19:17:31.347 INFO kablam! error: aborting due to 2 previous errors
Aug 01 19:17:31.348 INFO kablam! 
Aug 01 19:17:31.348 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 19:17:31.381 INFO kablam! error: Could not compile `messenger`.
Aug 01 19:17:31.382 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 19:17:55.769 INFO kablam! error: build failed
Aug 01 19:17:55.771 INFO kablam! su: No module specific data is present
Aug 01 19:17:56.310 INFO running `"docker" "rm" "-f" "97640c20c37b2470979ad455368800881c03d5d217df69b00f97a30e9327bf9d"`
Aug 01 19:17:56.472 INFO blam! 97640c20c37b2470979ad455368800881c03d5d217df69b00f97a30e9327bf9d