Aug 02 11:00:54.648 INFO checking efm32gg-hal-0.1.0 against 1.27.2+tmplazy for lazy_static-1
Aug 02 11:00:54.648 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 11:00:54.648 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 11:00:54.648 INFO running `"docker" "create" "-v" "/tmp/crater.oSVvOzoQG1HO:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-7/1.27.2+tmplazy:/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" "-v" "/home/ec2-user/crater/./work/local/cargo-home/git:/cargo-home/git:rw,Z" "-e" "USER_ID=500" "-e" "CMD=cargo +1.27.2 check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "crater"`
Aug 02 11:00:54.886 INFO blam! 1e00b6daeca56184c08fe7bafb4009ce6daeea99832b15a15b0b8415d445f2b7
Aug 02 11:00:54.889 INFO running `"docker" "start" "-a" "1e00b6daeca56184c08fe7bafb4009ce6daeea99832b15a15b0b8415d445f2b7"`
Aug 02 11:00:56.245 INFO kablam!     Checking bare-metal v0.1.2
Aug 02 11:00:56.380 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 11:00:56.380 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/bare-metal-0.1.2/src/lib.rs:5:35
Aug 02 11:00:56.380 INFO kablam!   |
Aug 02 11:00:56.380 INFO kablam! 5 | #![cfg_attr(feature = "const-fn", feature(const_fn, const_unsafe_cell_new))]
Aug 02 11:00:56.380 INFO kablam!   |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 11:00:56.380 INFO kablam! 
Aug 02 11:00:56.382 INFO kablam! error: aborting due to previous error
Aug 02 11:00:56.382 INFO kablam! 
Aug 02 11:00:56.382 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 11:00:56.387 INFO kablam! error: Could not compile `bare-metal`.
Aug 02 11:00:56.388 INFO kablam! 
Aug 02 11:00:56.388 INFO kablam! To learn more, run the command again with --verbose.
Aug 02 11:00:56.390 INFO kablam! su: No module specific data is present
Aug 02 11:00:57.142 INFO running `"docker" "rm" "-f" "1e00b6daeca56184c08fe7bafb4009ce6daeea99832b15a15b0b8415d445f2b7"`
Aug 02 11:00:57.291 INFO blam! 1e00b6daeca56184c08fe7bafb4009ce6daeea99832b15a15b0b8415d445f2b7