Sep 04 03:48:26.117 INFO checking tm4c123x-0.4.0 against try#5fe695a3844714c70e8f7731a553f7947987a68a for pr-53913
Sep 04 03:48:26.117 INFO running: cargo +5fe695a3844714c70e8f7731a553f7947987a68a-alt check --frozen --all --all-targets
Sep 04 03:48:26.117 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53913/try#5fe695a3844714c70e8f7731a553f7947987a68a:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53913/worker-1/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 03:48:26.334 INFO blam! 106eec115a81e6933688696654aaf05c32e8e2d5178e2e0594f30662564d6de8
Sep 04 03:48:26.337 INFO running `"docker" "start" "-a" "106eec115a81e6933688696654aaf05c32e8e2d5178e2e0594f30662564d6de8"`
Sep 04 03:48:26.909 INFO kablam!    Compiling cortex-m v0.2.12
Sep 04 03:48:26.909 INFO kablam!     Checking cortex-m-semihosting v0.1.3
Sep 04 03:48:26.909 INFO kablam!     Checking aligned v0.1.2
Sep 04 03:48:28.458 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Sep 04 03:48:28.458 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/cortex-m-0.2.12/src/lib.rs:16:12
Sep 04 03:48:28.458 INFO kablam!    |
Sep 04 03:48:28.458 INFO kablam! 16 | #![feature(const_unsafe_cell_new)]
Sep 04 03:48:28.458 INFO kablam!    |            ^^^^^^^^^^^^^^^^^^^^^
Sep 04 03:48:28.458 INFO kablam! 
Sep 04 03:48:28.472 INFO kablam! error: aborting due to previous error
Sep 04 03:48:28.472 INFO kablam! 
Sep 04 03:48:28.472 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Sep 04 03:48:28.478 INFO kablam! error: Could not compile `cortex-m`.
Sep 04 03:48:28.478 INFO kablam! 
Sep 04 03:48:28.478 INFO kablam! To learn more, run the command again with --verbose.
Sep 04 03:48:28.479 INFO kablam! su: No module specific data is present
Sep 04 03:48:28.911 INFO running `"docker" "rm" "-f" "106eec115a81e6933688696654aaf05c32e8e2d5178e2e0594f30662564d6de8"`
Sep 04 03:48:29.004 INFO blam! 106eec115a81e6933688696654aaf05c32e8e2d5178e2e0594f30662564d6de8