Aug 11 07:31:37.135 INFO checking nrf51-hal-0.5.1 against master#f6d43ed84207c7e58f363f46e5a438ff40f2b311 for libc-1
Aug 11 07:31:37.135 INFO running: cargo +f6d43ed84207c7e58f363f46e5a438ff40f2b311-alt check --frozen --all --all-targets
Aug 11 07:31:37.135 INFO creating container for: cargo +f6d43ed84207c7e58f363f46e5a438ff40f2b311-alt check --frozen --all --all-targets
Aug 11 07:31:37.135 INFO running `"docker" "create" "-v" "/tmp/crater.I35Njvt0lMbc:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/libc-1/worker-3/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 07:31:37.290 INFO blam! d90913adb99e6044262092518899e9a46f83887c1a843da4aec5405d353ef1ac
Aug 11 07:31:37.304 INFO running `"docker" "start" "-a" "d90913adb99e6044262092518899e9a46f83887c1a843da4aec5405d353ef1ac"`
Aug 11 07:31:38.693 INFO kablam!     Checking bare-metal v0.2.1
Aug 11 07:31:38.693 INFO kablam!    Compiling nrf51 v0.5.0
Aug 11 07:31:38.693 INFO kablam!    Compiling cortex-m-rt v0.5.1
Aug 11 07:31:38.701 INFO kablam!    Compiling cortex-m v0.5.3
Aug 11 07:31:38.897 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Aug 11 07:31:38.897 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/bare-metal-0.2.1/src/lib.rs:7:23
Aug 11 07:31:38.897 INFO kablam!   |
Aug 11 07:31:38.897 INFO kablam! 7 |     feature(const_fn, const_unsafe_cell_new)
Aug 11 07:31:38.897 INFO kablam!   |                       ^^^^^^^^^^^^^^^^^^^^^
Aug 11 07:31:38.897 INFO kablam! 
Aug 11 07:31:38.908 INFO kablam! error: aborting due to previous error
Aug 11 07:31:38.908 INFO kablam! 
Aug 11 07:31:38.908 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 11 07:31:38.908 INFO kablam! error: Could not compile `bare-metal`.
Aug 11 07:31:38.908 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 11 07:31:40.914 INFO kablam! error: build failed
Aug 11 07:31:40.914 INFO kablam! su: No module specific data is present
Aug 11 07:31:41.866 INFO running `"docker" "rm" "-f" "d90913adb99e6044262092518899e9a46f83887c1a843da4aec5405d353ef1ac"`
Aug 11 07:31:42.059 INFO blam! d90913adb99e6044262092518899e9a46f83887c1a843da4aec5405d353ef1ac