Aug 02 04:25:28.615 INFO checking metro_m0-0.1.0 against 1.27.2+tmplazy for lazy_static-1
Aug 02 04:25:28.615 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 04:25:28.615 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 04:25:28.615 INFO running `"docker" "create" "-v" "/tmp/crater.V54tzEqBnz2f:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-0/1.27.2+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 04:25:28.819 INFO blam! 0e51a5197acb9d94766be9faf69aa1b43b664f771d5756b4810db3e2994af759
Aug 02 04:25:28.821 INFO running `"docker" "start" "-a" "0e51a5197acb9d94766be9faf69aa1b43b664f771d5756b4810db3e2994af759"`
Aug 02 04:25:30.017 INFO kablam!     Checking aligned v0.1.2
Aug 02 04:25:30.018 INFO kablam!     Checking bare-metal v0.1.2
Aug 02 04:25:30.018 INFO kablam!     Checking untagged-option v0.1.1
Aug 02 04:25:30.018 INFO kablam!    Compiling cortex-m-rtfm v0.3.2
Aug 02 04:25:30.018 INFO kablam!     Checking rtfm-core v0.2.0
Aug 02 04:25:30.018 INFO kablam!     Checking panic-abort v0.1.1
Aug 02 04:25:30.018 INFO kablam!    Compiling proc-macro2 v0.3.8
Aug 02 04:25:30.019 INFO kablam!    Compiling cortex-m-semihosting v0.2.1
Aug 02 04:25:30.271 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 04:25:30.271 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/aligned-0.1.2/src/lib.rs:32:35
Aug 02 04:25:30.271 INFO kablam!    |
Aug 02 04:25:30.271 INFO kablam! 32 | #![cfg_attr(feature = "const-fn", feature(const_fn))]
Aug 02 04:25:30.271 INFO kablam!    |                                   ^^^^^^^^^^^^^^^^^^
Aug 02 04:25:30.273 INFO kablam! 
Aug 02 04:25:30.320 INFO kablam! error: aborting due to previous error
Aug 02 04:25:30.320 INFO kablam! 
Aug 02 04:25:30.320 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 04:25:30.326 INFO kablam! error: Could not compile `aligned`.
Aug 02 04:25:30.326 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 04:25:30.372 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 04:25:30.373 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/panic-abort-0.1.1/src/lib.rs:21:1
Aug 02 04:25:30.373 INFO kablam!    |
Aug 02 04:25:30.373 INFO kablam! 21 | #![feature(core_intrinsics)]
Aug 02 04:25:30.373 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 04:25:30.374 INFO kablam! 
Aug 02 04:25:30.374 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 04:25:30.374 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/panic-abort-0.1.1/src/lib.rs:22:1
Aug 02 04:25:30.375 INFO kablam!    |
Aug 02 04:25:30.375 INFO kablam! 22 | #![feature(lang_items)]
Aug 02 04:25:30.375 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 04:25:30.375 INFO kablam! 
Aug 02 04:25:30.375 INFO kablam! error: aborting due to 2 previous errors
Aug 02 04:25:30.376 INFO kablam! 
Aug 02 04:25:30.376 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 04:25:30.390 INFO kablam! error: Could not compile `panic-abort`.
Aug 02 04:25:30.391 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 04:25:30.467 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 04:25:30.467 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/bare-metal-0.1.2/src/lib.rs:5:35
Aug 02 04:25:30.467 INFO kablam!   |
Aug 02 04:25:30.467 INFO kablam! 5 | #![cfg_attr(feature = "const-fn", feature(const_fn, const_unsafe_cell_new))]
Aug 02 04:25:30.467 INFO kablam!   |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 04:25:30.485 INFO kablam! 
Aug 02 04:25:30.485 INFO kablam! error: aborting due to previous error
Aug 02 04:25:30.485 INFO kablam! 
Aug 02 04:25:30.485 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 04:25:30.499 INFO kablam! error: Could not compile `bare-metal`.
Aug 02 04:25:30.499 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 04:25:30.642 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 04:25:30.642 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/untagged-option-0.1.1/src/lib.rs:5:1
Aug 02 04:25:30.642 INFO kablam!   |
Aug 02 04:25:30.642 INFO kablam! 5 | #![feature(untagged_unions, const_fn)]
Aug 02 04:25:30.642 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 04:25:30.646 INFO kablam! 
Aug 02 04:25:30.647 INFO kablam! error: aborting due to previous error
Aug 02 04:25:30.647 INFO kablam! 
Aug 02 04:25:30.647 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 04:25:30.653 INFO kablam! error: Could not compile `untagged-option`.
Aug 02 04:25:30.653 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 04:25:31.577 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 04:25:31.577 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.8/src/lib.rs:47:34
Aug 02 04:25:31.577 INFO kablam!    |
Aug 02 04:25:31.577 INFO kablam! 47 | #![cfg_attr(feature = "nightly", feature(proc_macro))]
Aug 02 04:25:31.577 INFO kablam!    |                                  ^^^^^^^^^^^^^^^^^^^^
Aug 02 04:25:31.578 INFO kablam! 
Aug 02 04:25:31.585 INFO kablam! error: aborting due to previous error
Aug 02 04:25:31.585 INFO kablam! 
Aug 02 04:25:31.586 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 04:25:31.597 INFO kablam! error: Could not compile `proc-macro2`.
Aug 02 04:25:31.598 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 04:25:31.868 INFO kablam! error: build failed
Aug 02 04:25:31.871 INFO kablam! su: No module specific data is present
Aug 02 04:25:32.500 INFO running `"docker" "rm" "-f" "0e51a5197acb9d94766be9faf69aa1b43b664f771d5756b4810db3e2994af759"`
Aug 02 04:25:32.654 INFO blam! 0e51a5197acb9d94766be9faf69aa1b43b664f771d5756b4810db3e2994af759