Aug 02 10:52:26.637 INFO checking emlib-0.0.1 against 1.27.2 for lazy_static-1
Aug 02 10:52:26.637 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 10:52:26.637 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 10:52:26.637 INFO running `"docker" "create" "-v" "/tmp/crater.fTSrbBpgSRXc:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-5/1.27.2:/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 10:52:26.827 INFO blam! 5dda642d75c458d555968692145dcafbf38184023dfdfd3b351e5843ef9a4686
Aug 02 10:52:26.832 INFO running `"docker" "start" "-a" "5dda642d75c458d555968692145dcafbf38184023dfdfd3b351e5843ef9a4686"`
Aug 02 10:52:28.305 INFO kablam!    Compiling num-traits v0.2.5
Aug 02 10:52:28.305 INFO kablam!    Compiling num-integer v0.1.39
Aug 02 10:52:28.305 INFO kablam!    Compiling semver-parser v0.7.0
Aug 02 10:52:28.310 INFO kablam!    Compiling libc v0.2.42
Aug 02 10:52:28.310 INFO kablam!    Compiling cortex-m v0.3.1
Aug 02 10:52:28.316 INFO kablam!     Checking bare-metal v0.1.2
Aug 02 10:52:28.316 INFO kablam!     Checking aligned v0.1.2
Aug 02 10:52:28.316 INFO kablam!     Checking volatile-register v0.2.0
Aug 02 10:52:28.850 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 10:52:28.850 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/aligned-0.1.2/src/lib.rs:32:35
Aug 02 10:52:28.850 INFO kablam!    |
Aug 02 10:52:28.850 INFO kablam! 32 | #![cfg_attr(feature = "const-fn", feature(const_fn))]
Aug 02 10:52:28.850 INFO kablam!    |                                   ^^^^^^^^^^^^^^^^^^
Aug 02 10:52:28.857 INFO kablam! 
Aug 02 10:52:28.863 INFO kablam! error: aborting due to previous error
Aug 02 10:52:28.863 INFO kablam! 
Aug 02 10:52:28.863 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 10:52:28.869 INFO kablam! error: Could not compile `aligned`.
Aug 02 10:52:28.870 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 10:52:29.119 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 10:52:29.119 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/bare-metal-0.1.2/src/lib.rs:5:35
Aug 02 10:52:29.119 INFO kablam!   |
Aug 02 10:52:29.119 INFO kablam! 5 | #![cfg_attr(feature = "const-fn", feature(const_fn, const_unsafe_cell_new))]
Aug 02 10:52:29.119 INFO kablam!   |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 10:52:29.119 INFO kablam! 
Aug 02 10:52:29.120 INFO kablam! error: aborting due to previous error
Aug 02 10:52:29.120 INFO kablam! 
Aug 02 10:52:29.120 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 10:52:29.124 INFO kablam! error: Could not compile `bare-metal`.
Aug 02 10:52:29.125 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 10:52:34.969 INFO kablam! error: build failed
Aug 02 10:52:34.971 INFO kablam! su: No module specific data is present
Aug 02 10:52:35.591 INFO running `"docker" "rm" "-f" "5dda642d75c458d555968692145dcafbf38184023dfdfd3b351e5843ef9a4686"`
Aug 02 10:52:35.745 INFO blam! 5dda642d75c458d555968692145dcafbf38184023dfdfd3b351e5843ef9a4686