Aug 17 16:04:30.826 INFO checking nrf51-0.5.0 against master#142bb27373126edf8367f526358b6c72ecf1d8df for pr-53426
Aug 17 16:04:30.826 INFO running: cargo +142bb27373126edf8367f526358b6c72ecf1d8df-alt check --frozen --all --all-targets
Aug 17 16:04:30.826 INFO creating container for: cargo +142bb27373126edf8367f526358b6c72ecf1d8df-alt check --frozen --all --all-targets
Aug 17 16:04:30.826 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-6/pr-53426/master#142bb27373126edf8367f526358b6c72ecf1d8df:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53426/worker-6/master#142bb27373126edf8367f526358b6c72ecf1d8df:/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" "-e" "USER_ID=500" "-e" "CMD=cargo +142bb27373126edf8367f526358b6c72ecf1d8df-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "crater"`
Aug 17 16:04:31.037 INFO blam! 9d5fa3383e6f8b205673cef1ffb849587d9bfd47a048dda0ddb2d92c8294cbb8
Aug 17 16:04:31.039 INFO running `"docker" "start" "-a" "9d5fa3383e6f8b205673cef1ffb849587d9bfd47a048dda0ddb2d92c8294cbb8"`
Aug 17 16:04:32.493 INFO kablam!     Checking bare-metal v0.2.1
Aug 17 16:04:32.518 INFO kablam!    Compiling nrf51 v0.5.0 (file:///source)
Aug 17 16:04:32.525 INFO kablam!    Compiling cortex-m-rt v0.5.2
Aug 17 16:04:32.859 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Aug 17 16:04:32.859 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/bare-metal-0.2.1/src/lib.rs:7:23
Aug 17 16:04:32.859 INFO kablam!   |
Aug 17 16:04:32.859 INFO kablam! 7 |     feature(const_fn, const_unsafe_cell_new)
Aug 17 16:04:32.859 INFO kablam!   |                       ^^^^^^^^^^^^^^^^^^^^^
Aug 17 16:04:32.859 INFO kablam! 
Aug 17 16:04:32.862 INFO kablam! error: aborting due to previous error
Aug 17 16:04:32.862 INFO kablam! 
Aug 17 16:04:32.862 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 17 16:04:32.907 INFO kablam! error: Could not compile `bare-metal`.
Aug 17 16:04:32.908 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 17 16:04:34.396 INFO kablam! error: build failed
Aug 17 16:04:34.397 INFO kablam! su: No module specific data is present
Aug 17 16:04:35.002 INFO running `"docker" "rm" "-f" "9d5fa3383e6f8b205673cef1ffb849587d9bfd47a048dda0ddb2d92c8294cbb8"`
Aug 17 16:04:35.131 INFO blam! 9d5fa3383e6f8b205673cef1ffb849587d9bfd47a048dda0ddb2d92c8294cbb8