Aug 01 20:05:48.028 INFO checking transducers-0.0.2 against 1.27.2+tmplazy for lazy_static-1
Aug 01 20:05:48.028 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 20:05:48.028 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 20:05:48.028 INFO running `"docker" "create" "-v" "/tmp/crater.6xMmBETYGyOs:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-7/1.27.2+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 01 20:05:48.227 INFO blam! e454881b06a998cca78db3ca958996766110801d8faf08eb68b705c92a838167
Aug 01 20:05:48.230 INFO running `"docker" "start" "-a" "e454881b06a998cca78db3ca958996766110801d8faf08eb68b705c92a838167"`
Aug 01 20:05:49.668 INFO kablam!     Checking transducers v0.0.2 (file:///source)
Aug 01 20:05:49.841 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 20:05:49.841 INFO kablam!   --> src/lib.rs:41:1
Aug 01 20:05:49.841 INFO kablam!    |
Aug 01 20:05:49.842 INFO kablam! 41 | #![feature(fn_traits, unboxed_closures)]
Aug 01 20:05:49.842 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 20:05:49.842 INFO kablam! 
Aug 01 20:05:49.842 INFO kablam! error: aborting due to previous error
Aug 01 20:05:49.842 INFO kablam! 
Aug 01 20:05:49.842 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 20:05:49.846 INFO kablam! error: Could not compile `transducers`.
Aug 01 20:05:49.846 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 20:05:49.868 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 20:05:49.868 INFO kablam!   --> src/lib.rs:41:1
Aug 01 20:05:49.868 INFO kablam!    |
Aug 01 20:05:49.868 INFO kablam! 41 | #![feature(fn_traits, unboxed_closures)]
Aug 01 20:05:49.868 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 20:05:49.868 INFO kablam! 
Aug 01 20:05:49.869 INFO kablam! error: aborting due to previous error
Aug 01 20:05:49.869 INFO kablam! 
Aug 01 20:05:49.869 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 20:05:49.874 INFO kablam! error: Could not compile `transducers`.
Aug 01 20:05:49.874 INFO kablam! 
Aug 01 20:05:49.874 INFO kablam! To learn more, run the command again with --verbose.
Aug 01 20:05:49.875 INFO kablam! su: No module specific data is present
Aug 01 20:05:50.573 INFO running `"docker" "rm" "-f" "e454881b06a998cca78db3ca958996766110801d8faf08eb68b705c92a838167"`
Aug 01 20:05:50.780 INFO blam! e454881b06a998cca78db3ca958996766110801d8faf08eb68b705c92a838167