Aug 30 01:38:29.549 INFO checking stm32f100xx-0.4.0 against try#bc5a74802bb3ffc82f51ef04bca58d64220124c4 for pr-53699
Aug 30 01:38:29.549 INFO running: cargo +bc5a74802bb3ffc82f51ef04bca58d64220124c4-alt check --frozen --all --all-targets
Aug 30 01:38:29.549 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53699/try#bc5a74802bb3ffc82f51ef04bca58d64220124c4:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53699/worker-3/try#bc5a74802bb3ffc82f51ef04bca58d64220124c4:/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 +bc5a74802bb3ffc82f51ef04bca58d64220124c4-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Aug 30 01:38:29.762 INFO blam! 25e186e30fdbc4716cfc63b64f017c003cea30f4647d4c0d53255642c4cd6582
Aug 30 01:38:29.765 INFO running `"docker" "start" "-a" "25e186e30fdbc4716cfc63b64f017c003cea30f4647d4c0d53255642c4cd6582"`
Aug 30 01:38:30.422 INFO kablam!     Checking cortex-m v0.2.12
Aug 30 01:38:31.108 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Aug 30 01:38:31.108 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/cortex-m-0.2.12/src/lib.rs:16:12
Aug 30 01:38:31.108 INFO kablam!    |
Aug 30 01:38:31.108 INFO kablam! 16 | #![feature(const_unsafe_cell_new)]
Aug 30 01:38:31.108 INFO kablam!    |            ^^^^^^^^^^^^^^^^^^^^^
Aug 30 01:38:31.108 INFO kablam! 
Aug 30 01:38:31.133 INFO kablam! error: aborting due to previous error
Aug 30 01:38:31.133 INFO kablam! 
Aug 30 01:38:31.133 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 30 01:38:31.141 INFO kablam! error: Could not compile `cortex-m`.
Aug 30 01:38:31.141 INFO kablam! 
Aug 30 01:38:31.141 INFO kablam! To learn more, run the command again with --verbose.
Aug 30 01:38:31.143 INFO kablam! su: No module specific data is present
Aug 30 01:38:31.545 INFO running `"docker" "rm" "-f" "25e186e30fdbc4716cfc63b64f017c003cea30f4647d4c0d53255642c4cd6582"`
Aug 30 01:38:31.675 INFO blam! 25e186e30fdbc4716cfc63b64f017c003cea30f4647d4c0d53255642c4cd6582