Aug 30 01:38:40.334 INFO checking stm32f0xx-0.3.0 against master#545f22340f72ee0efaf6463efb43a2840e3d35db for pr-53699
Aug 30 01:38:40.334 INFO running: cargo +545f22340f72ee0efaf6463efb43a2840e3d35db-alt check --frozen --all --all-targets
Aug 30 01:38:40.334 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53699/master#545f22340f72ee0efaf6463efb43a2840e3d35db:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53699/worker-2/master#545f22340f72ee0efaf6463efb43a2840e3d35db:/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 +545f22340f72ee0efaf6463efb43a2840e3d35db-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Aug 30 01:38:40.554 INFO blam! 1cee0c3521afd68e7df2f84ddc6d713c18bf731fd35cbef67c886be64563294b
Aug 30 01:38:40.556 INFO running `"docker" "start" "-a" "1cee0c3521afd68e7df2f84ddc6d713c18bf731fd35cbef67c886be64563294b"`
Aug 30 01:38:41.209 INFO kablam!     Checking cortex-m v0.2.12
Aug 30 01:38:41.799 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Aug 30 01:38:41.800 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/cortex-m-0.2.12/src/lib.rs:16:12
Aug 30 01:38:41.800 INFO kablam!    |
Aug 30 01:38:41.800 INFO kablam! 16 | #![feature(const_unsafe_cell_new)]
Aug 30 01:38:41.800 INFO kablam!    |            ^^^^^^^^^^^^^^^^^^^^^
Aug 30 01:38:41.800 INFO kablam! 
Aug 30 01:38:41.820 INFO kablam! error: aborting due to previous error
Aug 30 01:38:41.820 INFO kablam! 
Aug 30 01:38:41.820 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 30 01:38:41.828 INFO kablam! error: Could not compile `cortex-m`.
Aug 30 01:38:41.829 INFO kablam! 
Aug 30 01:38:41.829 INFO kablam! To learn more, run the command again with --verbose.
Aug 30 01:38:41.831 INFO kablam! su: No module specific data is present
Aug 30 01:38:42.225 INFO running `"docker" "rm" "-f" "1cee0c3521afd68e7df2f84ddc6d713c18bf731fd35cbef67c886be64563294b"`
Aug 30 01:38:42.362 INFO blam! 1cee0c3521afd68e7df2f84ddc6d713c18bf731fd35cbef67c886be64563294b