Aug 10 21:46:32.655 INFO checking xmc4700-0.1.0 against master#f6d43ed84207c7e58f363f46e5a438ff40f2b311 for libc-1
Aug 10 21:46:32.656 INFO running: cargo +f6d43ed84207c7e58f363f46e5a438ff40f2b311-alt check --frozen --all --all-targets
Aug 10 21:46:32.656 INFO creating container for: cargo +f6d43ed84207c7e58f363f46e5a438ff40f2b311-alt check --frozen --all --all-targets
Aug 10 21:46:32.656 INFO running `"docker" "create" "-v" "/tmp/crater.uIWVptndaffV:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/libc-1/worker-0/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 10 21:46:32.900 INFO blam! 2373b6928292ac0e0bf487bdfce7e0abc91431a6793bff26bf8d382e712abd92
Aug 10 21:46:32.901 INFO running `"docker" "start" "-a" "2373b6928292ac0e0bf487bdfce7e0abc91431a6793bff26bf8d382e712abd92"`
Aug 10 21:46:33.778 INFO kablam!    Compiling cortex-m v0.3.1
Aug 10 21:46:33.778 INFO kablam!     Checking vcell v0.1.0
Aug 10 21:46:33.778 INFO kablam!     Checking aligned v0.1.2
Aug 10 21:46:33.779 INFO kablam!     Checking bare-metal v0.1.2
Aug 10 21:46:34.272 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Aug 10 21:46:34.272 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/bare-metal-0.1.2/src/lib.rs:5:53
Aug 10 21:46:34.272 INFO kablam!   |
Aug 10 21:46:34.272 INFO kablam! 5 | #![cfg_attr(feature = "const-fn", feature(const_fn, const_unsafe_cell_new))]
Aug 10 21:46:34.272 INFO kablam!   |                                                     ^^^^^^^^^^^^^^^^^^^^^
Aug 10 21:46:34.288 INFO kablam! 
Aug 10 21:46:34.290 INFO kablam! error: aborting due to previous error
Aug 10 21:46:34.290 INFO kablam! 
Aug 10 21:46:34.291 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 10 21:46:34.297 INFO kablam! error: Could not compile `bare-metal`.
Aug 10 21:46:34.297 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 10 21:46:36.148 INFO kablam! error: build failed
Aug 10 21:46:36.150 INFO kablam! su: No module specific data is present
Aug 10 21:46:36.687 INFO running `"docker" "rm" "-f" "2373b6928292ac0e0bf487bdfce7e0abc91431a6793bff26bf8d382e712abd92"`
Aug 10 21:46:36.845 INFO blam! 2373b6928292ac0e0bf487bdfce7e0abc91431a6793bff26bf8d382e712abd92