Aug 02 10:51:28.800 INFO checking encode_unicode-0.1.3 against 1.27.2+tmplazy for lazy_static-1
Aug 02 10:51:28.800 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 10:51:28.800 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 10:51:28.800 INFO running `"docker" "create" "-v" "/tmp/crater.ThCEuz4Hpbjo:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-6/1.27.2+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 10:51:29.045 INFO blam! 0b60172b34873b0f41e325b9a007f998b82b7ac60b5ebd162fe83b07d4c7cfa5
Aug 02 10:51:29.049 INFO running `"docker" "start" "-a" "0b60172b34873b0f41e325b9a007f998b82b7ac60b5ebd162fe83b07d4c7cfa5"`
Aug 02 10:51:30.841 INFO kablam!     Checking encode_unicode v0.1.3 (file:///source)
Aug 02 10:51:33.378 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 10:51:33.378 INFO kablam!  --> tests/fail_tests.rs:9:1
Aug 02 10:51:33.378 INFO kablam!   |
Aug 02 10:51:33.378 INFO kablam! 9 | #![feature(step_by)]
Aug 02 10:51:33.378 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^
Aug 02 10:51:33.378 INFO kablam! 
Aug 02 10:51:33.384 INFO kablam! error: aborting due to previous error
Aug 02 10:51:33.384 INFO kablam! 
Aug 02 10:51:33.384 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 10:51:33.400 INFO kablam! error: Could not compile `encode_unicode`.
Aug 02 10:51:33.400 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 10:51:33.531 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 10:51:33.531 INFO kablam!  --> tests/pass_tests.rs:9:1
Aug 02 10:51:33.531 INFO kablam!   |
Aug 02 10:51:33.531 INFO kablam! 9 | #![feature(unicode)]// reference implementations of to_slice
Aug 02 10:51:33.531 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^
Aug 02 10:51:33.532 INFO kablam! 
Aug 02 10:51:33.534 INFO kablam! error: aborting due to previous error
Aug 02 10:51:33.534 INFO kablam! 
Aug 02 10:51:33.534 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 10:51:33.543 INFO kablam! error: Could not compile `encode_unicode`.
Aug 02 10:51:33.543 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 10:51:33.717 INFO kablam! error: build failed
Aug 02 10:51:33.719 INFO kablam! su: No module specific data is present
Aug 02 10:51:34.814 INFO running `"docker" "rm" "-f" "0b60172b34873b0f41e325b9a007f998b82b7ac60b5ebd162fe83b07d4c7cfa5"`
Aug 02 10:51:34.913 INFO blam! 0b60172b34873b0f41e325b9a007f998b82b7ac60b5ebd162fe83b07d4c7cfa5