Aug 02 11:01:03.523 INFO checking effect-monad-0.3.1 against 1.27.2 for lazy_static-1
Aug 02 11:01:03.523 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 11:01:03.523 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 11:01:03.523 INFO running `"docker" "create" "-v" "/tmp/crater.8ntcjomaPnhJ:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-0/1.27.2:/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 11:01:03.760 INFO blam! 8032a8430da9b9f69d9bba39dda3d085ff85826de9e4d549bc3880a2a93879b9
Aug 02 11:01:03.762 INFO running `"docker" "start" "-a" "8032a8430da9b9f69d9bba39dda3d085ff85826de9e4d549bc3880a2a93879b9"`
Aug 02 11:01:04.821 INFO kablam!     Checking effect-monad v0.3.1 (file:///source)
Aug 02 11:01:05.413 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 11:01:05.413 INFO kablam!  --> src/lib.rs:5:1
Aug 02 11:01:05.413 INFO kablam!   |
Aug 02 11:01:05.413 INFO kablam! 5 | #![feature(fn_traits, unboxed_closures)]
Aug 02 11:01:05.413 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 11:01:05.413 INFO kablam! 
Aug 02 11:01:05.413 INFO kablam! error: aborting due to previous error
Aug 02 11:01:05.414 INFO kablam! 
Aug 02 11:01:05.414 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 11:01:05.420 INFO kablam! error: Could not compile `effect-monad`.
Aug 02 11:01:05.420 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 11:01:05.474 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 11:01:05.474 INFO kablam!  --> src/lib.rs:5:1
Aug 02 11:01:05.474 INFO kablam!   |
Aug 02 11:01:05.474 INFO kablam! 5 | #![feature(fn_traits, unboxed_closures)]
Aug 02 11:01:05.474 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 11:01:05.474 INFO kablam! 
Aug 02 11:01:05.475 INFO kablam! error: aborting due to previous error
Aug 02 11:01:05.475 INFO kablam! 
Aug 02 11:01:05.475 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 11:01:05.479 INFO kablam! error: Could not compile `effect-monad`.
Aug 02 11:01:05.479 INFO kablam! 
Aug 02 11:01:05.479 INFO kablam! To learn more, run the command again with --verbose.
Aug 02 11:01:05.480 INFO kablam! su: No module specific data is present
Aug 02 11:01:06.778 INFO running `"docker" "rm" "-f" "8032a8430da9b9f69d9bba39dda3d085ff85826de9e4d549bc3880a2a93879b9"`
Aug 02 11:01:06.917 INFO blam! 8032a8430da9b9f69d9bba39dda3d085ff85826de9e4d549bc3880a2a93879b9