Aug 02 05:04:52.818 INFO checking lm4f120-0.9.1 against 1.27.2 for lazy_static-1
Aug 02 05:04:52.818 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 05:04:52.818 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 05:04:52.818 INFO running `"docker" "create" "-v" "/tmp/crater.x5YW4RfzaB06:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-3/1.27.2:/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 05:04:53.074 INFO blam! 4156c7d3c928fd7dae7c0e78a5a57ba514af8fddee1fcb53435fe1c8942b25a0
Aug 02 05:04:53.077 INFO running `"docker" "start" "-a" "4156c7d3c928fd7dae7c0e78a5a57ba514af8fddee1fcb53435fe1c8942b25a0"`
Aug 02 05:04:54.456 INFO kablam!     Checking vcell v0.1.0
Aug 02 05:04:54.457 INFO kablam!    Compiling cortex-m v0.4.3
Aug 02 05:04:54.457 INFO kablam!     Checking bare-metal v0.1.2
Aug 02 05:04:54.457 INFO kablam!     Checking untagged-option v0.1.1
Aug 02 05:04:54.472 INFO kablam!     Checking aligned v0.1.2
Aug 02 05:04:54.474 INFO kablam!     Checking void v1.0.2
Aug 02 05:04:55.723 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 05:04:55.723 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/untagged-option-0.1.1/src/lib.rs:5:1
Aug 02 05:04:55.723 INFO kablam!   |
Aug 02 05:04:55.723 INFO kablam! 5 | #![feature(untagged_unions, const_fn)]
Aug 02 05:04:55.723 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 05:04:55.736 INFO kablam! 
Aug 02 05:04:55.738 INFO kablam! error: aborting due to previous error
Aug 02 05:04:55.738 INFO kablam! 
Aug 02 05:04:55.738 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 05:04:55.771 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 05:04:55.771 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/bare-metal-0.1.2/src/lib.rs:5:35
Aug 02 05:04:55.771 INFO kablam!   |
Aug 02 05:04:55.771 INFO kablam! 5 | #![cfg_attr(feature = "const-fn", feature(const_fn, const_unsafe_cell_new))]
Aug 02 05:04:55.771 INFO kablam!   |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 05:04:55.771 INFO kablam! 
Aug 02 05:04:55.772 INFO kablam! error: aborting due to previous error
Aug 02 05:04:55.772 INFO kablam! 
Aug 02 05:04:55.773 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 05:04:55.798 INFO kablam! error: Could not compile `bare-metal`.
Aug 02 05:04:55.798 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 05:04:55.798 INFO kablam! error: Could not compile `untagged-option`.
Aug 02 05:04:55.798 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 05:04:55.855 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 05:04:55.855 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/untagged-option-0.1.1/src/lib.rs:5:1
Aug 02 05:04:55.855 INFO kablam!   |
Aug 02 05:04:55.855 INFO kablam! 5 | #![feature(untagged_unions, const_fn)]
Aug 02 05:04:55.855 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 05:04:55.860 INFO kablam! 
Aug 02 05:04:55.861 INFO kablam! error: aborting due to previous error
Aug 02 05:04:55.862 INFO kablam! 
Aug 02 05:04:55.862 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 05:04:55.868 INFO kablam! error: Could not compile `untagged-option`.
Aug 02 05:04:55.868 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 05:04:55.961 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 05:04:55.961 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/aligned-0.1.2/src/lib.rs:32:35
Aug 02 05:04:55.961 INFO kablam!    |
Aug 02 05:04:55.961 INFO kablam! 32 | #![cfg_attr(feature = "const-fn", feature(const_fn))]
Aug 02 05:04:55.961 INFO kablam!    |                                   ^^^^^^^^^^^^^^^^^^
Aug 02 05:04:55.968 INFO kablam! 
Aug 02 05:04:55.971 INFO kablam! error: aborting due to previous error
Aug 02 05:04:55.972 INFO kablam! 
Aug 02 05:04:55.972 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 05:04:55.996 INFO kablam! error: Could not compile `aligned`.
Aug 02 05:04:55.997 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 05:04:56.005 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 05:04:56.005 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/aligned-0.1.2/src/lib.rs:32:35
Aug 02 05:04:56.005 INFO kablam!    |
Aug 02 05:04:56.005 INFO kablam! 32 | #![cfg_attr(feature = "const-fn", feature(const_fn))]
Aug 02 05:04:56.005 INFO kablam!    |                                   ^^^^^^^^^^^^^^^^^^
Aug 02 05:04:56.005 INFO kablam! 
Aug 02 05:04:56.007 INFO kablam! error: aborting due to previous error
Aug 02 05:04:56.007 INFO kablam! 
Aug 02 05:04:56.007 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 05:04:56.037 INFO kablam! error: Could not compile `aligned`.
Aug 02 05:04:56.038 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 05:04:56.237 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 05:04:56.237 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/bare-metal-0.1.2/src/lib.rs:5:35
Aug 02 05:04:56.237 INFO kablam!   |
Aug 02 05:04:56.237 INFO kablam! 5 | #![cfg_attr(feature = "const-fn", feature(const_fn, const_unsafe_cell_new))]
Aug 02 05:04:56.237 INFO kablam!   |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 05:04:56.248 INFO kablam! 
Aug 02 05:04:56.249 INFO kablam! error: aborting due to previous error
Aug 02 05:04:56.249 INFO kablam! 
Aug 02 05:04:56.249 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 05:04:56.257 INFO kablam! error: Could not compile `bare-metal`.
Aug 02 05:04:56.257 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 05:04:56.490 INFO kablam! error: build failed
Aug 02 05:04:56.493 INFO kablam! su: No module specific data is present
Aug 02 05:04:57.081 INFO running `"docker" "rm" "-f" "4156c7d3c928fd7dae7c0e78a5a57ba514af8fddee1fcb53435fe1c8942b25a0"`
Aug 02 05:04:57.234 INFO blam! 4156c7d3c928fd7dae7c0e78a5a57ba514af8fddee1fcb53435fe1c8942b25a0