Aug 02 13:01:44.271 INFO checking chalk-engine-0.6.0 against 1.27.2+tmplazy for lazy_static-1
Aug 02 13:01:44.271 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 13:01:44.271 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 13:01:44.272 INFO running `"docker" "create" "-v" "/tmp/crater.x5riCfybzWZs:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-1/1.27.2+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 13:01:44.527 INFO blam! df0013b8d0aae4e0c9e36de6e1caee5f3d56983555190cf1523df10879dbe2e8
Aug 02 13:01:44.529 INFO running `"docker" "start" "-a" "df0013b8d0aae4e0c9e36de6e1caee5f3d56983555190cf1523df10879dbe2e8"`
Aug 02 13:01:45.602 INFO kablam!    Compiling stacker v0.1.3
Aug 02 13:01:45.605 INFO kablam!     Checking chalk-macros v0.1.0
Aug 02 13:01:46.332 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 13:01:46.332 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/chalk-macros-0.1.0/src/lib.rs:1:1
Aug 02 13:01:46.332 INFO kablam!   |
Aug 02 13:01:46.332 INFO kablam! 1 | #![feature(crate_visibility_modifier)]
Aug 02 13:01:46.332 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 13:01:46.348 INFO kablam! 
Aug 02 13:01:46.349 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 13:01:46.349 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/chalk-macros-0.1.0/src/lib.rs:2:1
Aug 02 13:01:46.349 INFO kablam!   |
Aug 02 13:01:46.349 INFO kablam! 2 | #![feature(macro_vis_matcher)]
Aug 02 13:01:46.349 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 13:01:46.349 INFO kablam! 
Aug 02 13:01:46.349 INFO kablam! error: aborting due to 2 previous errors
Aug 02 13:01:46.349 INFO kablam! 
Aug 02 13:01:46.349 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 13:01:46.367 INFO kablam! error: Could not compile `chalk-macros`.
Aug 02 13:01:46.367 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 13:01:47.210 INFO kablam! error: build failed
Aug 02 13:01:47.212 INFO kablam! su: No module specific data is present
Aug 02 13:01:48.003 INFO running `"docker" "rm" "-f" "df0013b8d0aae4e0c9e36de6e1caee5f3d56983555190cf1523df10879dbe2e8"`
Aug 02 13:01:48.117 INFO blam! df0013b8d0aae4e0c9e36de6e1caee5f3d56983555190cf1523df10879dbe2e8