Aug 31 12:35:32.845 INFO checking stm32f0xx-0.3.0 against try#a5b9f2cc0cdaca8edf23a89c649279de2c91cd3b for pr-53578
Aug 31 12:35:32.845 INFO running: cargo +a5b9f2cc0cdaca8edf23a89c649279de2c91cd3b-alt check --frozen --all --all-targets
Aug 31 12:35:32.845 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53578/try#a5b9f2cc0cdaca8edf23a89c649279de2c91cd3b:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53578/worker-2/try#a5b9f2cc0cdaca8edf23a89c649279de2c91cd3b:/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 +a5b9f2cc0cdaca8edf23a89c649279de2c91cd3b-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Aug 31 12:35:33.050 INFO blam! f270f3f0a0cace484472fbc7f7cc6ca7cfc440ca79608c152d3a95500ee2d06f
Aug 31 12:35:33.052 INFO running `"docker" "start" "-a" "f270f3f0a0cace484472fbc7f7cc6ca7cfc440ca79608c152d3a95500ee2d06f"`
Aug 31 12:35:33.760 INFO kablam!     Checking cortex-m v0.2.12
Aug 31 12:35:34.532 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Aug 31 12:35:34.533 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/cortex-m-0.2.12/src/lib.rs:16:12
Aug 31 12:35:34.533 INFO kablam!    |
Aug 31 12:35:34.533 INFO kablam! 16 | #![feature(const_unsafe_cell_new)]
Aug 31 12:35:34.533 INFO kablam!    |            ^^^^^^^^^^^^^^^^^^^^^
Aug 31 12:35:34.533 INFO kablam! 
Aug 31 12:35:34.558 INFO kablam! error: aborting due to previous error
Aug 31 12:35:34.558 INFO kablam! 
Aug 31 12:35:34.558 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 31 12:35:34.567 INFO kablam! error: Could not compile `cortex-m`.
Aug 31 12:35:34.567 INFO kablam! 
Aug 31 12:35:34.567 INFO kablam! To learn more, run the command again with --verbose.
Aug 31 12:35:34.569 INFO kablam! su: No module specific data is present
Aug 31 12:35:34.968 INFO running `"docker" "rm" "-f" "f270f3f0a0cace484472fbc7f7cc6ca7cfc440ca79608c152d3a95500ee2d06f"`
Aug 31 12:35:35.109 INFO blam! f270f3f0a0cace484472fbc7f7cc6ca7cfc440ca79608c152d3a95500ee2d06f