Aug 17 09:24:58.447 INFO checking stm32f100xx-0.4.0 against master#142bb27373126edf8367f526358b6c72ecf1d8df for pr-53426
Aug 17 09:24:58.447 INFO running: cargo +142bb27373126edf8367f526358b6c72ecf1d8df-alt check --frozen --all --all-targets
Aug 17 09:24:58.447 INFO creating container for: cargo +142bb27373126edf8367f526358b6c72ecf1d8df-alt check --frozen --all --all-targets
Aug 17 09:24:58.447 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-7/pr-53426/master#142bb27373126edf8367f526358b6c72ecf1d8df:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53426/worker-7/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 09:24:58.714 INFO blam! 4ce8255f6438ccffc911b24c04f92e59558ea6f54fb67258af3f2ab8694ddef8
Aug 17 09:24:58.717 INFO running `"docker" "start" "-a" "4ce8255f6438ccffc911b24c04f92e59558ea6f54fb67258af3f2ab8694ddef8"`
Aug 17 09:24:59.830 INFO kablam!     Checking cortex-m v0.2.12
Aug 17 09:25:00.895 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Aug 17 09:25:00.895 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/cortex-m-0.2.12/src/lib.rs:16:12
Aug 17 09:25:00.895 INFO kablam!    |
Aug 17 09:25:00.895 INFO kablam! 16 | #![feature(const_unsafe_cell_new)]
Aug 17 09:25:00.895 INFO kablam!    |            ^^^^^^^^^^^^^^^^^^^^^
Aug 17 09:25:00.895 INFO kablam! 
Aug 17 09:25:00.920 INFO kablam! error: aborting due to previous error
Aug 17 09:25:00.922 INFO kablam! 
Aug 17 09:25:00.922 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 17 09:25:00.930 INFO kablam! error: Could not compile `cortex-m`.
Aug 17 09:25:00.930 INFO kablam! 
Aug 17 09:25:00.930 INFO kablam! To learn more, run the command again with --verbose.
Aug 17 09:25:00.934 INFO kablam! su: No module specific data is present
Aug 17 09:25:01.467 INFO running `"docker" "rm" "-f" "4ce8255f6438ccffc911b24c04f92e59558ea6f54fb67258af3f2ab8694ddef8"`
Aug 17 09:25:01.667 INFO blam! 4ce8255f6438ccffc911b24c04f92e59558ea6f54fb67258af3f2ab8694ddef8