Aug 01 20:32:43.664 INFO checking thin_cstr-0.1.0 against 1.27.2 for lazy_static-1
Aug 01 20:32:43.664 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 20:32:43.664 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 20:32:43.664 INFO running `"docker" "create" "-v" "/tmp/crater.pT13vM7Ays2o:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-4/1.27.2:/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 20:32:43.864 INFO blam! 1fd5d705c2b816fc205f838bb3dc9bdf17b8167052690ca82fdcbec644c50b8e
Aug 01 20:32:43.870 INFO running `"docker" "start" "-a" "1fd5d705c2b816fc205f838bb3dc9bdf17b8167052690ca82fdcbec644c50b8e"`
Aug 01 20:32:45.043 INFO kablam!     Checking thin_cstr v0.1.0 (file:///source)
Aug 01 20:32:45.311 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 20:32:45.311 INFO kablam!  --> src/lib.rs:1:1
Aug 01 20:32:45.311 INFO kablam!   |
Aug 01 20:32:45.311 INFO kablam! 1 | #![feature(extern_types)]
Aug 01 20:32:45.311 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 20:32:45.311 INFO kablam! 
Aug 01 20:32:45.315 INFO kablam! error: aborting due to previous error
Aug 01 20:32:45.315 INFO kablam! 
Aug 01 20:32:45.315 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 20:32:45.321 INFO kablam! error: Could not compile `thin_cstr`.
Aug 01 20:32:45.321 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 20:32:45.383 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 20:32:45.383 INFO kablam!  --> src/lib.rs:1:1
Aug 01 20:32:45.384 INFO kablam!   |
Aug 01 20:32:45.384 INFO kablam! 1 | #![feature(extern_types)]
Aug 01 20:32:45.384 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 20:32:45.384 INFO kablam! 
Aug 01 20:32:45.396 INFO kablam! error: aborting due to previous error
Aug 01 20:32:45.396 INFO kablam! 
Aug 01 20:32:45.396 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 20:32:45.420 INFO kablam! error: Could not compile `thin_cstr`.
Aug 01 20:32:45.421 INFO kablam! 
Aug 01 20:32:45.421 INFO kablam! To learn more, run the command again with --verbose.
Aug 01 20:32:45.423 INFO kablam! su: No module specific data is present
Aug 01 20:32:46.044 INFO running `"docker" "rm" "-f" "1fd5d705c2b816fc205f838bb3dc9bdf17b8167052690ca82fdcbec644c50b8e"`
Aug 01 20:32:46.198 INFO blam! 1fd5d705c2b816fc205f838bb3dc9bdf17b8167052690ca82fdcbec644c50b8e