Aug 02 14:29:14.807 INFO checking avl_tree-0.2.0 against 1.27.2+tmplazy for lazy_static-1
Aug 02 14:29:14.808 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 14:29:14.808 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 14:29:14.808 INFO running `"docker" "create" "-v" "/tmp/crater.0yujdxK4sLcv:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-5/1.27.2+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 14:29:15.026 INFO blam! 32e5ffdfed65656dc37416277fa341c6509cd78068dc3cc198436aaca0f47324
Aug 02 14:29:15.029 INFO running `"docker" "start" "-a" "32e5ffdfed65656dc37416277fa341c6509cd78068dc3cc198436aaca0f47324"`
Aug 02 14:29:15.913 INFO kablam!     Checking avl_tree v0.2.0 (file:///source)
Aug 02 14:29:17.041 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 14:29:17.041 INFO kablam!  --> src/lib.rs:3:1
Aug 02 14:29:17.041 INFO kablam!   |
Aug 02 14:29:17.041 INFO kablam! 3 | #![feature(test)]
Aug 02 14:29:17.041 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 14:29:17.042 INFO kablam! 
Aug 02 14:29:17.042 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 14:29:17.042 INFO kablam!  --> src/lib.rs:4:1
Aug 02 14:29:17.042 INFO kablam!   |
Aug 02 14:29:17.042 INFO kablam! 4 | #![feature(collections_bound)]
Aug 02 14:29:17.042 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 14:29:17.043 INFO kablam! 
Aug 02 14:29:17.043 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 14:29:17.043 INFO kablam!  --> src/lib.rs:5:1
Aug 02 14:29:17.043 INFO kablam!   |
Aug 02 14:29:17.043 INFO kablam! 5 | #![feature(rand)]
Aug 02 14:29:17.043 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 14:29:17.044 INFO kablam! 
Aug 02 14:29:17.046 INFO kablam! error: aborting due to 3 previous errors
Aug 02 14:29:17.046 INFO kablam! 
Aug 02 14:29:17.046 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 14:29:17.054 INFO kablam! error: Could not compile `avl_tree`.
Aug 02 14:29:17.054 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 14:29:17.139 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 14:29:17.139 INFO kablam!  --> src/lib.rs:3:1
Aug 02 14:29:17.139 INFO kablam!   |
Aug 02 14:29:17.139 INFO kablam! 3 | #![feature(test)]
Aug 02 14:29:17.139 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 14:29:17.139 INFO kablam! 
Aug 02 14:29:17.139 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 14:29:17.139 INFO kablam!  --> src/lib.rs:4:1
Aug 02 14:29:17.139 INFO kablam!   |
Aug 02 14:29:17.139 INFO kablam! 4 | #![feature(collections_bound)]
Aug 02 14:29:17.139 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 14:29:17.139 INFO kablam! 
Aug 02 14:29:17.140 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 14:29:17.140 INFO kablam!  --> src/lib.rs:5:1
Aug 02 14:29:17.140 INFO kablam!   |
Aug 02 14:29:17.140 INFO kablam! 5 | #![feature(rand)]
Aug 02 14:29:17.140 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 14:29:17.140 INFO kablam! 
Aug 02 14:29:17.141 INFO kablam! error: aborting due to 3 previous errors
Aug 02 14:29:17.142 INFO kablam! 
Aug 02 14:29:17.142 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 14:29:17.150 INFO kablam! error: Could not compile `avl_tree`.
Aug 02 14:29:17.151 INFO kablam! 
Aug 02 14:29:17.151 INFO kablam! To learn more, run the command again with --verbose.
Aug 02 14:29:17.152 INFO kablam! su: No module specific data is present
Aug 02 14:29:17.727 INFO running `"docker" "rm" "-f" "32e5ffdfed65656dc37416277fa341c6509cd78068dc3cc198436aaca0f47324"`
Aug 02 14:29:17.875 INFO blam! 32e5ffdfed65656dc37416277fa341c6509cd78068dc3cc198436aaca0f47324