Aug 01 23:55:41.700 INFO checking runtime-fmt-0.3.0 against 1.27.2 for lazy_static-1
Aug 01 23:55:41.700 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 23:55:41.700 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 23:55:41.700 INFO running `"docker" "create" "-v" "/tmp/crater.kyjA7qH3pIyz:/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 23:55:41.943 INFO blam! d67efbc1581c1490aa5d7f5f86eb03867e7c11c37ebe2d163d644c8ac8a17631
Aug 01 23:55:41.946 INFO running `"docker" "start" "-a" "d67efbc1581c1490aa5d7f5f86eb03867e7c11c37ebe2d163d644c8ac8a17631"`
Aug 01 23:55:43.179 INFO kablam!     Checking runtime-fmt v0.3.0 (file:///source)
Aug 01 23:55:43.179 INFO kablam!    Compiling runtime-fmt-derive v0.2.0
Aug 01 23:55:43.781 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 23:55:43.781 INFO kablam!   --> src/lib.rs:17:1
Aug 01 23:55:43.781 INFO kablam!    |
Aug 01 23:55:43.781 INFO kablam! 17 | #![feature(fmt_internals)]
Aug 01 23:55:43.781 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 23:55:43.782 INFO kablam! 
Aug 01 23:55:43.782 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 23:55:43.782 INFO kablam!   --> src/lib.rs:18:1
Aug 01 23:55:43.782 INFO kablam!    |
Aug 01 23:55:43.782 INFO kablam! 18 | #![feature(conservative_impl_trait)]
Aug 01 23:55:43.782 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 23:55:43.782 INFO kablam! 
Aug 01 23:55:43.782 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 23:55:43.782 INFO kablam!   --> src/lib.rs:19:1
Aug 01 23:55:43.783 INFO kablam!    |
Aug 01 23:55:43.783 INFO kablam! 19 | #![feature(specialization)]
Aug 01 23:55:43.783 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 23:55:43.783 INFO kablam! 
Aug 01 23:55:43.783 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 23:55:43.783 INFO kablam!   --> src/lib.rs:20:1
Aug 01 23:55:43.783 INFO kablam!    |
Aug 01 23:55:43.783 INFO kablam! 20 | #![feature(print_internals)]
Aug 01 23:55:43.783 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 23:55:43.783 INFO kablam! 
Aug 01 23:55:43.783 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 23:55:43.783 INFO kablam!   --> src/lib.rs:21:1
Aug 01 23:55:43.783 INFO kablam!    |
Aug 01 23:55:43.783 INFO kablam! 21 | #![feature(rustc_private)]
Aug 01 23:55:43.783 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 23:55:43.783 INFO kablam! 
Aug 01 23:55:43.783 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 23:55:43.783 INFO kablam!   --> src/lib.rs:22:1
Aug 01 23:55:43.783 INFO kablam!    |
Aug 01 23:55:43.784 INFO kablam! 22 | #![feature(try_from)]
Aug 01 23:55:43.784 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^
Aug 01 23:55:43.784 INFO kablam! 
Aug 01 23:55:43.789 INFO kablam! error: aborting due to 6 previous errors
Aug 01 23:55:43.789 INFO kablam! 
Aug 01 23:55:43.790 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 23:55:43.798 INFO kablam! error: Could not compile `runtime-fmt`.
Aug 01 23:55:43.803 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 23:55:47.660 INFO kablam! error: build failed
Aug 01 23:55:47.662 INFO kablam! su: No module specific data is present
Aug 01 23:55:48.226 INFO running `"docker" "rm" "-f" "d67efbc1581c1490aa5d7f5f86eb03867e7c11c37ebe2d163d644c8ac8a17631"`
Aug 01 23:55:48.368 INFO blam! d67efbc1581c1490aa5d7f5f86eb03867e7c11c37ebe2d163d644c8ac8a17631