Sep 05 22:25:02.368 INFO checking stm32l4x6-memory-map-0.2.0 against master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6 for pr-53854
Sep 05 22:25:02.368 INFO running: cargo +1c2e17f4e3a2070a7f703f51e29c1c388ef703b6-alt check --frozen --all --all-targets
Sep 05 22:25:02.368 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53854/master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-2/master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6:/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 +1c2e17f4e3a2070a7f703f51e29c1c388ef703b6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 05 22:25:02.567 INFO blam! 35a90f874430cd87eb2aaf5946491df9995b16302c85372ec5a5305196033d12
Sep 05 22:25:02.571 INFO running `"docker" "start" "-a" "35a90f874430cd87eb2aaf5946491df9995b16302c85372ec5a5305196033d12"`
Sep 05 22:25:03.650 INFO kablam! usermod: no changes
Sep 05 22:25:03.741 INFO kablam!    Compiling cortex-m v0.2.12
Sep 05 22:25:03.758 INFO kablam!     Checking cortex-m-semihosting v0.1.3
Sep 05 22:25:05.285 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Sep 05 22:25:05.285 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/cortex-m-0.2.12/src/lib.rs:16:12
Sep 05 22:25:05.285 INFO kablam!    |
Sep 05 22:25:05.286 INFO kablam! 16 | #![feature(const_unsafe_cell_new)]
Sep 05 22:25:05.286 INFO kablam!    |            ^^^^^^^^^^^^^^^^^^^^^
Sep 05 22:25:05.286 INFO kablam! 
Sep 05 22:25:05.297 INFO kablam! error: aborting due to previous error
Sep 05 22:25:05.297 INFO kablam! 
Sep 05 22:25:05.297 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Sep 05 22:25:05.297 INFO kablam! error: Could not compile `cortex-m`.
Sep 05 22:25:05.298 INFO kablam! 
Sep 05 22:25:05.298 INFO kablam! To learn more, run the command again with --verbose.
Sep 05 22:25:05.298 INFO kablam! su: No module specific data is present
Sep 05 22:25:06.348 INFO running `"docker" "rm" "-f" "35a90f874430cd87eb2aaf5946491df9995b16302c85372ec5a5305196033d12"`
Sep 05 22:25:06.747 INFO blam! 35a90f874430cd87eb2aaf5946491df9995b16302c85372ec5a5305196033d12