Aug 11 15:29:36.621 INFO checking embedded-hal-0.1.3 against master#f6d43ed84207c7e58f363f46e5a438ff40f2b311 for libc-1
Aug 11 15:29:36.621 INFO running: cargo +f6d43ed84207c7e58f363f46e5a438ff40f2b311-alt check --frozen --all --all-targets
Aug 11 15:29:36.621 INFO creating container for: cargo +f6d43ed84207c7e58f363f46e5a438ff40f2b311-alt check --frozen --all --all-targets
Aug 11 15:29:36.622 INFO running `"docker" "create" "-v" "/tmp/crater.RoQ0EG33N0WQ:/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 15:29:36.846 INFO blam! 723710cbe225f9bea1cd070680997764170361c1f246d383ec5a3ebe4b441003
Aug 11 15:29:36.848 INFO running `"docker" "start" "-a" "723710cbe225f9bea1cd070680997764170361c1f246d383ec5a3ebe4b441003"`
Aug 11 15:29:38.300 INFO kablam!     Checking bare-metal v0.1.2
Aug 11 15:29:38.301 INFO kablam!     Checking embedded-hal v0.1.3 (file:///source)
Aug 11 15:29:38.414 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Aug 11 15:29:38.414 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/bare-metal-0.1.2/src/lib.rs:5:53
Aug 11 15:29:38.414 INFO kablam!   |
Aug 11 15:29:38.414 INFO kablam! 5 | #![cfg_attr(feature = "const-fn", feature(const_fn, const_unsafe_cell_new))]
Aug 11 15:29:38.414 INFO kablam!   |                                                     ^^^^^^^^^^^^^^^^^^^^^
Aug 11 15:29:38.415 INFO kablam! 
Aug 11 15:29:38.417 INFO kablam! error: aborting due to previous error
Aug 11 15:29:38.417 INFO kablam! 
Aug 11 15:29:38.417 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 11 15:29:38.424 INFO kablam! error: Could not compile `bare-metal`.
Aug 11 15:29:38.425 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 11 15:29:38.473 INFO kablam! error: build failed
Aug 11 15:29:38.475 INFO kablam! su: No module specific data is present
Aug 11 15:29:39.570 INFO running `"docker" "rm" "-f" "723710cbe225f9bea1cd070680997764170361c1f246d383ec5a3ebe4b441003"`
Aug 11 15:29:39.769 INFO blam! 723710cbe225f9bea1cd070680997764170361c1f246d383ec5a3ebe4b441003