Aug 11 15:28:00.425 INFO checking emlib-0.0.1 against master#f6d43ed84207c7e58f363f46e5a438ff40f2b311 for libc-1
Aug 11 15:28:00.425 INFO running: cargo +f6d43ed84207c7e58f363f46e5a438ff40f2b311-alt check --frozen --all --all-targets
Aug 11 15:28:00.425 INFO creating container for: cargo +f6d43ed84207c7e58f363f46e5a438ff40f2b311-alt check --frozen --all --all-targets
Aug 11 15:28:00.425 INFO running `"docker" "create" "-v" "/tmp/crater.RnnC6h3EWww7:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/libc-1/worker-4/master#f6d43ed84207c7e58f363f46e5a438ff40f2b311:/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 +f6d43ed84207c7e58f363f46e5a438ff40f2b311-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "crater"`
Aug 11 15:28:00.629 INFO blam! ba4fe285f3711d122aba3c6b488992510ba672afbd73a8d3c2642a281bb07ee0
Aug 11 15:28:00.631 INFO running `"docker" "start" "-a" "ba4fe285f3711d122aba3c6b488992510ba672afbd73a8d3c2642a281bb07ee0"`
Aug 11 15:28:01.750 INFO kablam!    Compiling num-traits v0.2.5
Aug 11 15:28:01.751 INFO kablam!    Compiling num-integer v0.1.39
Aug 11 15:28:01.751 INFO kablam!    Compiling semver-parser v0.7.0
Aug 11 15:28:01.751 INFO kablam!    Compiling libc v0.2.43
Aug 11 15:28:01.751 INFO kablam!    Compiling cortex-m v0.3.1
Aug 11 15:28:01.751 INFO kablam!     Checking vcell v0.1.0
Aug 11 15:28:01.751 INFO kablam!     Checking aligned v0.1.2
Aug 11 15:28:01.752 INFO kablam!     Checking bare-metal v0.1.2
Aug 11 15:28:02.332 INFO kablam!    Compiling cc v1.0.18
Aug 11 15:28:02.372 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Aug 11 15:28:02.372 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/bare-metal-0.1.2/src/lib.rs:5:53
Aug 11 15:28:02.372 INFO kablam!   |
Aug 11 15:28:02.372 INFO kablam! 5 | #![cfg_attr(feature = "const-fn", feature(const_fn, const_unsafe_cell_new))]
Aug 11 15:28:02.372 INFO kablam!   |                                                     ^^^^^^^^^^^^^^^^^^^^^
Aug 11 15:28:02.373 INFO kablam! 
Aug 11 15:28:02.375 INFO kablam! error: aborting due to previous error
Aug 11 15:28:02.376 INFO kablam! 
Aug 11 15:28:02.376 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 11 15:28:02.383 INFO kablam! error: Could not compile `bare-metal`.
Aug 11 15:28:02.384 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 11 15:28:16.450 INFO kablam! error: build failed
Aug 11 15:28:16.452 INFO kablam! su: No module specific data is present
Aug 11 15:28:17.061 INFO running `"docker" "rm" "-f" "ba4fe285f3711d122aba3c6b488992510ba672afbd73a8d3c2642a281bb07ee0"`
Aug 11 15:28:17.220 INFO blam! ba4fe285f3711d122aba3c6b488992510ba672afbd73a8d3c2642a281bb07ee0