Aug 02 10:51:29.274 INFO checking encode_unicode-0.1.3 against 1.27.2 for lazy_static-1
Aug 02 10:51:29.274 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 10:51:29.274 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 10:51:29.275 INFO running `"docker" "create" "-v" "/tmp/crater.A8Ajr4BhzDdy:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-1/1.27.2:/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 10:51:29.543 INFO blam! 1b21c754fa8f7271f8ecf772f76d652aaea9faa8c4526204466d8d34bb56ef7e
Aug 02 10:51:29.547 INFO running `"docker" "start" "-a" "1b21c754fa8f7271f8ecf772f76d652aaea9faa8c4526204466d8d34bb56ef7e"`
Aug 02 10:51:30.870 INFO kablam!     Checking encode_unicode v0.1.3 (file:///source)
Aug 02 10:51:33.402 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 10:51:33.402 INFO kablam!  --> tests/pass_tests.rs:9:1
Aug 02 10:51:33.402 INFO kablam!   |
Aug 02 10:51:33.402 INFO kablam! 9 | #![feature(unicode)]// reference implementations of to_slice
Aug 02 10:51:33.402 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^
Aug 02 10:51:33.402 INFO kablam! 
Aug 02 10:51:33.403 INFO kablam! error: aborting due to previous error
Aug 02 10:51:33.404 INFO kablam! 
Aug 02 10:51:33.404 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 10:51:33.437 INFO kablam! error: Could not compile `encode_unicode`.
Aug 02 10:51:33.438 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 10:51:33.609 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 10:51:33.609 INFO kablam!  --> tests/fail_tests.rs:9:1
Aug 02 10:51:33.609 INFO kablam!   |
Aug 02 10:51:33.609 INFO kablam! 9 | #![feature(step_by)]
Aug 02 10:51:33.609 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^
Aug 02 10:51:33.609 INFO kablam! 
Aug 02 10:51:33.609 INFO kablam! error: aborting due to previous error
Aug 02 10:51:33.609 INFO kablam! 
Aug 02 10:51:33.609 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 10:51:33.615 INFO kablam! error: Could not compile `encode_unicode`.
Aug 02 10:51:33.615 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 10:51:33.760 INFO kablam! error: build failed
Aug 02 10:51:33.762 INFO kablam! su: No module specific data is present
Aug 02 10:51:34.534 INFO running `"docker" "rm" "-f" "1b21c754fa8f7271f8ecf772f76d652aaea9faa8c4526204466d8d34bb56ef7e"`
Aug 02 10:51:34.621 INFO blam! 1b21c754fa8f7271f8ecf772f76d652aaea9faa8c4526204466d8d34bb56ef7e