Aug 01 19:32:04.451 INFO checking urbit-0.1.0 against 1.27.2 for lazy_static-1
Aug 01 19:32:04.451 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 19:32:04.451 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 19:32:04.452 INFO running `"docker" "create" "-v" "/tmp/crater.Pr985TqtzrGQ:/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 01 19:32:04.671 INFO blam! 3ce23575c7925d7b5ccca166ad52076caff37206fce5a7deda5845980abeebc9
Aug 01 19:32:04.674 INFO running `"docker" "start" "-a" "3ce23575c7925d7b5ccca166ad52076caff37206fce5a7deda5845980abeebc9"`
Aug 01 19:32:06.424 INFO kablam!     Checking nock v0.4.0
Aug 01 19:32:07.695 INFO kablam!     Checking urbit v0.1.0 (file:///source)
Aug 01 19:32:08.145 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 19:32:08.145 INFO kablam!  --> src/lib.rs:1:1
Aug 01 19:32:08.145 INFO kablam!   |
Aug 01 19:32:08.145 INFO kablam! 1 | #![feature(alloc_system)]
Aug 01 19:32:08.145 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 19:32:08.145 INFO kablam! 
Aug 01 19:32:08.146 INFO kablam! error: aborting due to previous error
Aug 01 19:32:08.147 INFO kablam! 
Aug 01 19:32:08.147 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 19:32:08.155 INFO kablam! error: Could not compile `urbit`.
Aug 01 19:32:08.156 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 19:32:08.434 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 19:32:08.434 INFO kablam!  --> src/lib.rs:1:1
Aug 01 19:32:08.434 INFO kablam!   |
Aug 01 19:32:08.434 INFO kablam! 1 | #![feature(alloc_system)]
Aug 01 19:32:08.434 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 19:32:08.434 INFO kablam! 
Aug 01 19:32:08.435 INFO kablam! error: aborting due to previous error
Aug 01 19:32:08.435 INFO kablam! 
Aug 01 19:32:08.435 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 19:32:08.448 INFO kablam! error: Could not compile `urbit`.
Aug 01 19:32:08.448 INFO kablam! 
Aug 01 19:32:08.448 INFO kablam! To learn more, run the command again with --verbose.
Aug 01 19:32:08.453 INFO kablam! su: No module specific data is present
Aug 01 19:32:09.017 INFO running `"docker" "rm" "-f" "3ce23575c7925d7b5ccca166ad52076caff37206fce5a7deda5845980abeebc9"`
Aug 01 19:32:09.176 INFO blam! 3ce23575c7925d7b5ccca166ad52076caff37206fce5a7deda5845980abeebc9