Aug 02 01:58:30.452 INFO checking pretty-hash-0.2.0 against 1.27.2 for lazy_static-1
Aug 02 01:58:30.453 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 01:58:30.453 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 01:58:30.453 INFO running `"docker" "create" "-v" "/tmp/crater.zG56Q0sUKN2s:/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 01:58:30.707 INFO blam! 96615f7cda9f36cbefa60bcc0a7dc7412e8f88a1f990c661f2669594d64a931c
Aug 02 01:58:30.710 INFO running `"docker" "start" "-a" "96615f7cda9f36cbefa60bcc0a7dc7412e8f88a1f990c661f2669594d64a931c"`
Aug 02 01:58:31.912 INFO kablam!     Checking pretty-hash v0.2.0 (file:///source)
Aug 02 01:58:32.362 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 01:58:32.362 INFO kablam!  --> src/lib.rs:3:1
Aug 02 01:58:32.362 INFO kablam!   |
Aug 02 01:58:32.362 INFO kablam! 3 | #![feature(external_doc)]
Aug 02 01:58:32.362 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 01:58:32.363 INFO kablam! 
Aug 02 01:58:32.363 INFO kablam! error: aborting due to previous error
Aug 02 01:58:32.364 INFO kablam! 
Aug 02 01:58:32.364 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 01:58:32.371 INFO kablam! error: Could not compile `pretty-hash`.
Aug 02 01:58:32.371 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 01:58:32.395 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 01:58:32.395 INFO kablam!  --> src/lib.rs:3:1
Aug 02 01:58:32.395 INFO kablam!   |
Aug 02 01:58:32.395 INFO kablam! 3 | #![feature(external_doc)]
Aug 02 01:58:32.395 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 01:58:32.395 INFO kablam! 
Aug 02 01:58:32.395 INFO kablam! error: aborting due to previous error
Aug 02 01:58:32.395 INFO kablam! 
Aug 02 01:58:32.395 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 01:58:32.405 INFO kablam! error: Could not compile `pretty-hash`.
Aug 02 01:58:32.405 INFO kablam! 
Aug 02 01:58:32.405 INFO kablam! To learn more, run the command again with --verbose.
Aug 02 01:58:32.406 INFO kablam! su: No module specific data is present
Aug 02 01:58:32.930 INFO running `"docker" "rm" "-f" "96615f7cda9f36cbefa60bcc0a7dc7412e8f88a1f990c661f2669594d64a931c"`
Aug 02 01:58:33.125 INFO blam! 96615f7cda9f36cbefa60bcc0a7dc7412e8f88a1f990c661f2669594d64a931c