Sep 04 05:20:16.996 INFO checking stm32f0xx-0.3.0 against master#2687112ea6a8701cbf36e6dd4d77d64694cf93d8 for pr-53913
Sep 04 05:20:16.996 INFO running: cargo +2687112ea6a8701cbf36e6dd4d77d64694cf93d8-alt check --frozen --all --all-targets
Sep 04 05:20:16.996 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53913/master#2687112ea6a8701cbf36e6dd4d77d64694cf93d8:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53913/worker-2/master#2687112ea6a8701cbf36e6dd4d77d64694cf93d8:/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 +2687112ea6a8701cbf36e6dd4d77d64694cf93d8-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 04 05:20:17.187 INFO blam! 53b214954c704d7b2bf034c6fc5d9c15eb4c63d74c1a9abc128733f99ac94a4f
Sep 04 05:20:17.189 INFO running `"docker" "start" "-a" "53b214954c704d7b2bf034c6fc5d9c15eb4c63d74c1a9abc128733f99ac94a4f"`
Sep 04 05:20:17.774 INFO kablam!     Checking cortex-m v0.2.12
Sep 04 05:20:18.226 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Sep 04 05:20:18.226 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/cortex-m-0.2.12/src/lib.rs:16:12
Sep 04 05:20:18.226 INFO kablam!    |
Sep 04 05:20:18.226 INFO kablam! 16 | #![feature(const_unsafe_cell_new)]
Sep 04 05:20:18.226 INFO kablam!    |            ^^^^^^^^^^^^^^^^^^^^^
Sep 04 05:20:18.226 INFO kablam! 
Sep 04 05:20:18.240 INFO kablam! error: aborting due to previous error
Sep 04 05:20:18.240 INFO kablam! 
Sep 04 05:20:18.240 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Sep 04 05:20:18.246 INFO kablam! error: Could not compile `cortex-m`.
Sep 04 05:20:18.246 INFO kablam! 
Sep 04 05:20:18.246 INFO kablam! To learn more, run the command again with --verbose.
Sep 04 05:20:18.247 INFO kablam! su: No module specific data is present
Sep 04 05:20:18.770 INFO running `"docker" "rm" "-f" "53b214954c704d7b2bf034c6fc5d9c15eb4c63d74c1a9abc128733f99ac94a4f"`
Sep 04 05:20:18.863 INFO blam! 53b214954c704d7b2bf034c6fc5d9c15eb4c63d74c1a9abc128733f99ac94a4f