Aug 17 16:04:30.634 INFO checking nrf51-hal-0.5.1 against master#142bb27373126edf8367f526358b6c72ecf1d8df for pr-53426
Aug 17 16:04:30.634 INFO running: cargo +142bb27373126edf8367f526358b6c72ecf1d8df-alt check --frozen --all --all-targets
Aug 17 16:04:30.634 INFO creating container for: cargo +142bb27373126edf8367f526358b6c72ecf1d8df-alt check --frozen --all --all-targets
Aug 17 16:04:30.634 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-5/pr-53426/master#142bb27373126edf8367f526358b6c72ecf1d8df:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53426/worker-5/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 16:04:30.837 INFO blam! 4c215b2a296cae0edae544b9844a625426286d0b0942654174e45bee9f9fc27f
Aug 17 16:04:30.839 INFO running `"docker" "start" "-a" "4c215b2a296cae0edae544b9844a625426286d0b0942654174e45bee9f9fc27f"`
Aug 17 16:04:31.953 INFO kablam!    Compiling cc v1.0.18
Aug 17 16:04:31.955 INFO kablam!     Checking vcell v0.1.0
Aug 17 16:04:31.958 INFO kablam!     Checking aligned v0.2.0
Aug 17 16:04:31.961 INFO kablam!    Compiling nrf51 v0.5.0
Aug 17 16:04:31.963 INFO kablam!     Checking bare-metal v0.2.1
Aug 17 16:04:31.969 INFO kablam!     Checking r0 v0.2.2
Aug 17 16:04:31.969 INFO kablam!     Checking nb v0.1.1
Aug 17 16:04:31.969 INFO kablam!     Checking void v1.0.2
Aug 17 16:04:32.517 INFO kablam!     Checking cast v0.2.2
Aug 17 16:04:32.875 INFO kablam!     Checking volatile-register v0.2.0
Aug 17 16:04:33.042 INFO kablam!     Checking embedded-hal v0.2.1
Aug 17 16:04:33.254 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Aug 17 16:04:33.255 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/bare-metal-0.2.1/src/lib.rs:7:23
Aug 17 16:04:33.255 INFO kablam!   |
Aug 17 16:04:33.255 INFO kablam! 7 |     feature(const_fn, const_unsafe_cell_new)
Aug 17 16:04:33.255 INFO kablam!   |                       ^^^^^^^^^^^^^^^^^^^^^
Aug 17 16:04:33.259 INFO kablam! 
Aug 17 16:04:33.289 INFO kablam! error: aborting due to previous error
Aug 17 16:04:33.299 INFO kablam! 
Aug 17 16:04:33.299 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 17 16:04:33.339 INFO kablam! error: Could not compile `bare-metal`.
Aug 17 16:04:33.339 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 17 16:04:37.879 INFO kablam! error: build failed
Aug 17 16:04:37.881 INFO kablam! su: No module specific data is present
Aug 17 16:04:38.468 INFO running `"docker" "rm" "-f" "4c215b2a296cae0edae544b9844a625426286d0b0942654174e45bee9f9fc27f"`
Aug 17 16:04:38.607 INFO blam! 4c215b2a296cae0edae544b9844a625426286d0b0942654174e45bee9f9fc27f