Sep 04 05:20:14.454 INFO checking stm32f0xx-0.3.0 against try#5fe695a3844714c70e8f7731a553f7947987a68a for pr-53913
Sep 04 05:20:14.454 INFO running: cargo +5fe695a3844714c70e8f7731a553f7947987a68a-alt check --frozen --all --all-targets
Sep 04 05:20:14.454 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53913/try#5fe695a3844714c70e8f7731a553f7947987a68a:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53913/worker-2/try#5fe695a3844714c70e8f7731a553f7947987a68a:/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 +5fe695a3844714c70e8f7731a553f7947987a68a-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 04 05:20:14.646 INFO blam! 34672ed8cb08a22af1b14545c980f14153fa78816f7f6ba14f34c7f153f150e5
Sep 04 05:20:14.648 INFO running `"docker" "start" "-a" "34672ed8cb08a22af1b14545c980f14153fa78816f7f6ba14f34c7f153f150e5"`
Sep 04 05:20:15.271 INFO kablam!    Compiling cortex-m v0.2.12
Sep 04 05:20:15.271 INFO kablam!     Checking cortex-m-semihosting v0.1.3
Sep 04 05:20:16.324 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Sep 04 05:20:16.324 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/cortex-m-0.2.12/src/lib.rs:16:12
Sep 04 05:20:16.324 INFO kablam!    |
Sep 04 05:20:16.324 INFO kablam! 16 | #![feature(const_unsafe_cell_new)]
Sep 04 05:20:16.324 INFO kablam!    |            ^^^^^^^^^^^^^^^^^^^^^
Sep 04 05:20:16.324 INFO kablam! 
Sep 04 05:20:16.339 INFO kablam! error: aborting due to previous error
Sep 04 05:20:16.339 INFO kablam! 
Sep 04 05:20:16.339 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Sep 04 05:20:16.345 INFO kablam! error: Could not compile `cortex-m`.
Sep 04 05:20:16.345 INFO kablam! 
Sep 04 05:20:16.345 INFO kablam! To learn more, run the command again with --verbose.
Sep 04 05:20:16.346 INFO kablam! su: No module specific data is present
Sep 04 05:20:16.795 INFO running `"docker" "rm" "-f" "34672ed8cb08a22af1b14545c980f14153fa78816f7f6ba14f34c7f153f150e5"`
Sep 04 05:20:16.946 INFO blam! 34672ed8cb08a22af1b14545c980f14153fa78816f7f6ba14f34c7f153f150e5