Aug 01 21:18:18.179 INFO checking stm32f767-hal-0.2.0 against 1.27.2+tmplazy for lazy_static-1
Aug 01 21:18:18.179 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 21:18:18.179 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 21:18:18.179 INFO running `"docker" "create" "-v" "/tmp/crater.t0eWf7iwv9Xx:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-7/1.27.2+tmplazy:/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 21:18:18.397 INFO blam! 5865ba8baf880de348e7432a2cb4986a62c6579d685683538f32b557508ceb13
Aug 01 21:18:18.399 INFO running `"docker" "start" "-a" "5865ba8baf880de348e7432a2cb4986a62c6579d685683538f32b557508ceb13"`
Aug 01 21:18:19.617 INFO kablam!    Compiling cc v1.0.18
Aug 01 21:18:19.618 INFO kablam!     Checking vcell v0.1.0
Aug 01 21:18:19.619 INFO kablam!    Compiling stm32f7 v0.2.2
Aug 01 21:18:19.619 INFO kablam!     Checking aligned v0.2.0
Aug 01 21:18:19.619 INFO kablam!     Checking r0 v0.2.2
Aug 01 21:18:19.619 INFO kablam!     Checking bare-metal v0.2.0
Aug 01 21:18:19.619 INFO kablam!     Checking nb v0.1.1
Aug 01 21:18:19.620 INFO kablam!     Checking void v1.0.2
Aug 01 21:18:20.216 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 21:18:20.216 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/bare-metal-0.2.0/src/lib.rs:5:35
Aug 01 21:18:20.216 INFO kablam!   |
Aug 01 21:18:20.216 INFO kablam! 5 | #![cfg_attr(feature = "const-fn", feature(const_fn, const_unsafe_cell_new))]
Aug 01 21:18:20.216 INFO kablam!   |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 21:18:20.226 INFO kablam! 
Aug 01 21:18:20.227 INFO kablam! error: aborting due to previous error
Aug 01 21:18:20.227 INFO kablam! 
Aug 01 21:18:20.228 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 21:18:20.251 INFO kablam! error: Could not compile `bare-metal`.
Aug 01 21:18:20.251 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 21:18:26.632 INFO kablam! error: build failed
Aug 01 21:18:26.634 INFO kablam! su: No module specific data is present
Aug 01 21:18:27.195 INFO running `"docker" "rm" "-f" "5865ba8baf880de348e7432a2cb4986a62c6579d685683538f32b557508ceb13"`
Aug 01 21:18:27.359 INFO blam! 5865ba8baf880de348e7432a2cb4986a62c6579d685683538f32b557508ceb13