Aug 02 00:38:24.187 INFO checking retro-0.1.1 against 1.27.2+tmplazy for lazy_static-1
Aug 02 00:38:24.187 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 00:38:24.187 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 00:38:24.187 INFO running `"docker" "create" "-v" "/tmp/crater.KeEaaSivx2ux:/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 00:38:24.422 INFO blam! c184dcb5544d91694a0569ad55ca0d1d7e0e5270aeb41b1bde46f499c7bde98f
Aug 02 00:38:24.424 INFO running `"docker" "start" "-a" "c184dcb5544d91694a0569ad55ca0d1d7e0e5270aeb41b1bde46f499c7bde98f"`
Aug 02 00:38:25.439 INFO kablam!     Checking retro v0.1.1 (file:///source)
Aug 02 00:38:26.269 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 00:38:26.270 INFO kablam!  --> src/main.rs:5:1
Aug 02 00:38:26.270 INFO kablam!   |
Aug 02 00:38:26.270 INFO kablam! 5 | #![feature(type_ascription)]
Aug 02 00:38:26.270 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 00:38:26.270 INFO kablam! 
Aug 02 00:38:26.272 INFO kablam! error: aborting due to previous error
Aug 02 00:38:26.272 INFO kablam! 
Aug 02 00:38:26.272 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 00:38:26.293 INFO kablam! error: Could not compile `retro`.
Aug 02 00:38:26.293 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 00:38:26.627 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 00:38:26.627 INFO kablam!  --> src/main.rs:5:1
Aug 02 00:38:26.627 INFO kablam!   |
Aug 02 00:38:26.627 INFO kablam! 5 | #![feature(type_ascription)]
Aug 02 00:38:26.627 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 00:38:26.627 INFO kablam! 
Aug 02 00:38:26.630 INFO kablam! error: aborting due to previous error
Aug 02 00:38:26.630 INFO kablam! 
Aug 02 00:38:26.630 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 00:38:26.647 INFO kablam! error: Could not compile `retro`.
Aug 02 00:38:26.647 INFO kablam! 
Aug 02 00:38:26.647 INFO kablam! To learn more, run the command again with --verbose.
Aug 02 00:38:26.649 INFO kablam! su: No module specific data is present
Aug 02 00:38:27.296 INFO running `"docker" "rm" "-f" "c184dcb5544d91694a0569ad55ca0d1d7e0e5270aeb41b1bde46f499c7bde98f"`
Aug 02 00:38:27.445 INFO blam! c184dcb5544d91694a0569ad55ca0d1d7e0e5270aeb41b1bde46f499c7bde98f