Aug 02 02:52:16.150 INFO checking overflower_support-0.1.5 against 1.27.2 for lazy_static-1
Aug 02 02:52:16.150 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 02:52:16.150 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 02:52:16.150 INFO running `"docker" "create" "-v" "/tmp/crater.X2zSUX5kBwaT:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-6/1.27.2:/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 02:52:16.392 INFO blam! 0e84ee400c3b021b4d83dd546c46e9cc2ada8b6dcf843e12fe9118c4e108475b
Aug 02 02:52:16.395 INFO running `"docker" "start" "-a" "0e84ee400c3b021b4d83dd546c46e9cc2ada8b6dcf843e12fe9118c4e108475b"`
Aug 02 02:52:17.874 INFO kablam!     Checking overflower_support v0.1.5 (file:///source)
Aug 02 02:52:19.105 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 02:52:19.105 INFO kablam!   --> src/lib.rs:14:1
Aug 02 02:52:19.105 INFO kablam!    |
Aug 02 02:52:19.105 INFO kablam! 14 | #![feature(specialization)]
Aug 02 02:52:19.105 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 02:52:19.105 INFO kablam! 
Aug 02 02:52:19.151 INFO kablam! error: aborting due to previous error
Aug 02 02:52:19.151 INFO kablam! 
Aug 02 02:52:19.151 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 02:52:19.153 INFO kablam! error: Could not compile `overflower_support`.
Aug 02 02:52:19.153 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 02:52:19.369 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 02:52:19.369 INFO kablam!   --> src/lib.rs:14:1
Aug 02 02:52:19.369 INFO kablam!    |
Aug 02 02:52:19.369 INFO kablam! 14 | #![feature(specialization)]
Aug 02 02:52:19.369 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 02:52:19.370 INFO kablam! 
Aug 02 02:52:19.403 INFO kablam! error: aborting due to previous error
Aug 02 02:52:19.403 INFO kablam! 
Aug 02 02:52:19.404 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 02:52:19.415 INFO kablam! error: Could not compile `overflower_support`.
Aug 02 02:52:19.415 INFO kablam! 
Aug 02 02:52:19.415 INFO kablam! To learn more, run the command again with --verbose.
Aug 02 02:52:19.418 INFO kablam! su: No module specific data is present
Aug 02 02:52:20.041 INFO running `"docker" "rm" "-f" "0e84ee400c3b021b4d83dd546c46e9cc2ada8b6dcf843e12fe9118c4e108475b"`
Aug 02 02:52:20.210 INFO blam! 0e84ee400c3b021b4d83dd546c46e9cc2ada8b6dcf843e12fe9118c4e108475b