Sep 04 02:02:31.331 INFO checking stm32f100xx-0.4.0 against try#6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0 for pr-53893
Sep 04 02:02:31.331 INFO running: cargo +6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0-alt check --frozen --all --all-targets
Sep 04 02:02:31.331 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53893/try#6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53893/worker-2/try#6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0:/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 +6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 04 02:02:31.522 INFO blam! eba09b63c2dc4fe045cb6b576b83fdfd56f6d541f860e4d6f7d59b24dddabbbd
Sep 04 02:02:31.524 INFO running `"docker" "start" "-a" "eba09b63c2dc4fe045cb6b576b83fdfd56f6d541f860e4d6f7d59b24dddabbbd"`
Sep 04 02:02:32.211 INFO kablam!     Checking cortex-m v0.2.12
Sep 04 02:02:32.985 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Sep 04 02:02:32.986 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/cortex-m-0.2.12/src/lib.rs:16:12
Sep 04 02:02:32.986 INFO kablam!    |
Sep 04 02:02:32.986 INFO kablam! 16 | #![feature(const_unsafe_cell_new)]
Sep 04 02:02:32.986 INFO kablam!    |            ^^^^^^^^^^^^^^^^^^^^^
Sep 04 02:02:32.986 INFO kablam! 
Sep 04 02:02:33.011 INFO kablam! error: aborting due to previous error
Sep 04 02:02:33.011 INFO kablam! 
Sep 04 02:02:33.011 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Sep 04 02:02:33.027 INFO kablam! error: Could not compile `cortex-m`.
Sep 04 02:02:33.027 INFO kablam! 
Sep 04 02:02:33.027 INFO kablam! To learn more, run the command again with --verbose.
Sep 04 02:02:33.027 INFO kablam! su: No module specific data is present
Sep 04 02:02:33.398 INFO running `"docker" "rm" "-f" "eba09b63c2dc4fe045cb6b576b83fdfd56f6d541f860e4d6f7d59b24dddabbbd"`
Sep 04 02:02:33.530 INFO blam! eba09b63c2dc4fe045cb6b576b83fdfd56f6d541f860e4d6f7d59b24dddabbbd