Aug 02 13:17:32.452 INFO checking cargo-snippet-0.2.3 against 1.27.2+tmplazy for lazy_static-1
Aug 02 13:17:32.452 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 13:17:32.453 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 13:17:32.453 INFO running `"docker" "create" "-v" "/tmp/crater.kRYSnWC7Zt7x:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-4/1.27.2+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 13:17:32.727 INFO blam! 222a45a8976864e07f1aff5ec44ea256470a7ba414c20397fc6f06363b33d8d2
Aug 02 13:17:32.729 INFO running `"docker" "start" "-a" "222a45a8976864e07f1aff5ec44ea256470a7ba414c20397fc6f06363b33d8d2"`
Aug 02 13:17:33.674 INFO kablam!     Blocking waiting for file lock on the git checkouts
Aug 02 13:17:34.022 INFO kablam!     Checking cargo-snippet v0.2.3 (file:///source)
Aug 02 13:17:37.036 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 13:17:37.036 INFO kablam!  --> src/lib.rs:2:1
Aug 02 13:17:37.036 INFO kablam!   |
Aug 02 13:17:37.036 INFO kablam! 2 | #![feature(plugin_registrar, rustc_private)]
Aug 02 13:17:37.036 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 13:17:37.036 INFO kablam! 
Aug 02 13:17:37.036 INFO kablam! error: aborting due to previous error
Aug 02 13:17:37.036 INFO kablam! 
Aug 02 13:17:37.036 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 13:17:37.051 INFO kablam! error: Could not compile `cargo-snippet`.
Aug 02 13:17:37.052 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 13:17:37.545 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 13:17:37.545 INFO kablam!  --> src/lib.rs:2:1
Aug 02 13:17:37.545 INFO kablam!   |
Aug 02 13:17:37.545 INFO kablam! 2 | #![feature(plugin_registrar, rustc_private)]
Aug 02 13:17:37.546 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 13:17:37.546 INFO kablam! 
Aug 02 13:17:37.546 INFO kablam! error: aborting due to previous error
Aug 02 13:17:37.546 INFO kablam! 
Aug 02 13:17:37.546 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 13:17:37.572 INFO kablam! error: Could not compile `cargo-snippet`.
Aug 02 13:17:37.572 INFO kablam! 
Aug 02 13:17:37.572 INFO kablam! To learn more, run the command again with --verbose.
Aug 02 13:17:37.573 INFO kablam! su: No module specific data is present
Aug 02 13:17:38.329 INFO running `"docker" "rm" "-f" "222a45a8976864e07f1aff5ec44ea256470a7ba414c20397fc6f06363b33d8d2"`
Aug 02 13:17:38.458 INFO blam! 222a45a8976864e07f1aff5ec44ea256470a7ba414c20397fc6f06363b33d8d2