Sep 19 17:37:31.587 INFO checking stm32f303x-memory-map-0.1.1 against try#fcacde07b66fe513e52c41b73aef91bcc121905b for pr-54346
Sep 19 17:37:31.587 INFO running: cargo +fcacde07b66fe513e52c41b73aef91bcc121905b-alt check --frozen --all --all-targets
Sep 19 17:37:31.587 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-54346/try#fcacde07b66fe513e52c41b73aef91bcc121905b:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54346/worker-0/try#fcacde07b66fe513e52c41b73aef91bcc121905b:/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=1000" "-e" "CMD=cargo +fcacde07b66fe513e52c41b73aef91bcc121905b-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 19 17:37:32.039 INFO blam! 66f50dd4434ee757bd9cd4a959ba000c0a4ed712eb7c578751ba84ba1fd730df
Sep 19 17:37:32.047 INFO running `"docker" "start" "-a" "66f50dd4434ee757bd9cd4a959ba000c0a4ed712eb7c578751ba84ba1fd730df"`
Sep 19 17:37:34.111 INFO kablam! usermod: no changes
Sep 19 17:37:34.211 INFO kablam!    Compiling cortex-m v0.2.12
Sep 19 17:37:34.215 INFO kablam!     Checking cortex-m-semihosting v0.1.3
Sep 19 17:37:35.471 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Sep 19 17:37:35.471 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/cortex-m-0.2.12/src/lib.rs:16:12
Sep 19 17:37:35.471 INFO kablam!    |
Sep 19 17:37:35.471 INFO kablam! 16 | #![feature(const_unsafe_cell_new)]
Sep 19 17:37:35.471 INFO kablam!    |            ^^^^^^^^^^^^^^^^^^^^^
Sep 19 17:37:35.471 INFO kablam! 
Sep 19 17:37:35.488 INFO kablam! error: aborting due to previous error
Sep 19 17:37:35.488 INFO kablam! 
Sep 19 17:37:35.488 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Sep 19 17:37:35.490 INFO kablam! error: Could not compile `cortex-m`.
Sep 19 17:37:35.490 INFO kablam! 
Sep 19 17:37:35.490 INFO kablam! To learn more, run the command again with --verbose.
Sep 19 17:37:35.492 INFO kablam! su: No module specific data is present
Sep 19 17:37:36.306 INFO running `"docker" "rm" "-f" "66f50dd4434ee757bd9cd4a959ba000c0a4ed712eb7c578751ba84ba1fd730df"`
Sep 19 17:37:36.427 INFO blam! 66f50dd4434ee757bd9cd4a959ba000c0a4ed712eb7c578751ba84ba1fd730df