Aug 11 15:42:51.445 INFO checking e310x-0.1.1 against master#f6d43ed84207c7e58f363f46e5a438ff40f2b311 for libc-1
Aug 11 15:42:51.445 INFO running: cargo +f6d43ed84207c7e58f363f46e5a438ff40f2b311-alt check --frozen --all --all-targets
Aug 11 15:42:51.445 INFO creating container for: cargo +f6d43ed84207c7e58f363f46e5a438ff40f2b311-alt check --frozen --all --all-targets
Aug 11 15:42:51.445 INFO running `"docker" "create" "-v" "/tmp/crater.ifsTLFXLqr7b:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/libc-1/worker-5/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 15:42:51.707 INFO blam! 04de9203c2118d04fb6e7e40ed867c58e595665e3a657d476b80db43115d3bb0
Aug 11 15:42:51.709 INFO running `"docker" "start" "-a" "04de9203c2118d04fb6e7e40ed867c58e595665e3a657d476b80db43115d3bb0"`
Aug 11 15:42:53.823 INFO kablam!    Compiling e310x v0.1.1 (file:///source)
Aug 11 15:42:53.824 INFO kablam!     Checking bare-metal v0.1.2
Aug 11 15:42:53.914 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Aug 11 15:42:53.914 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/bare-metal-0.1.2/src/lib.rs:5:53
Aug 11 15:42:53.914 INFO kablam!   |
Aug 11 15:42:53.914 INFO kablam! 5 | #![cfg_attr(feature = "const-fn", feature(const_fn, const_unsafe_cell_new))]
Aug 11 15:42:53.914 INFO kablam!   |                                                     ^^^^^^^^^^^^^^^^^^^^^
Aug 11 15:42:53.914 INFO kablam! 
Aug 11 15:42:53.915 INFO kablam! error: aborting due to previous error
Aug 11 15:42:53.915 INFO kablam! 
Aug 11 15:42:53.915 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 11 15:42:53.919 INFO kablam! error: Could not compile `bare-metal`.
Aug 11 15:42:53.919 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 11 15:42:55.161 INFO kablam! error: build failed
Aug 11 15:42:55.162 INFO kablam! su: No module specific data is present
Aug 11 15:42:56.652 INFO running `"docker" "rm" "-f" "04de9203c2118d04fb6e7e40ed867c58e595665e3a657d476b80db43115d3bb0"`
Aug 11 15:42:56.834 INFO blam! 04de9203c2118d04fb6e7e40ed867c58e595665e3a657d476b80db43115d3bb0