Aug 02 04:34:35.179 INFO checking mcs-0.1.1 against 1.27.2+tmplazy for lazy_static-1
Aug 02 04:34:35.179 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 04:34:35.179 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 04:34:35.179 INFO running `"docker" "create" "-v" "/tmp/crater.al6iK4AIjtxn:/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 02 04:34:35.424 INFO blam! 690298d956170e2dc02d71754b5b505018fe4980c4b2340fd4ab41f3ac315014
Aug 02 04:34:35.427 INFO running `"docker" "start" "-a" "690298d956170e2dc02d71754b5b505018fe4980c4b2340fd4ab41f3ac315014"`
Aug 02 04:34:36.449 INFO kablam!     Checking mcs v0.1.1 (file:///source)
Aug 02 04:34:36.684 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 04:34:36.684 INFO kablam!  --> src/lib.rs:1:35
Aug 02 04:34:36.684 INFO kablam!   |
Aug 02 04:34:36.684 INFO kablam! 1 | #![cfg_attr(feature = "unstable", feature(asm, const_fn, generic_param_attrs, dropck_eyepatch))]
Aug 02 04:34:36.684 INFO kablam!   |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 04:34:36.685 INFO kablam! 
Aug 02 04:34:36.685 INFO kablam! error: aborting due to previous error
Aug 02 04:34:36.685 INFO kablam! 
Aug 02 04:34:36.685 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 04:34:36.691 INFO kablam! error: Could not compile `mcs`.
Aug 02 04:34:36.691 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 04:34:36.903 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 04:34:36.903 INFO kablam!  --> src/lib.rs:1:35
Aug 02 04:34:36.903 INFO kablam!   |
Aug 02 04:34:36.903 INFO kablam! 1 | #![cfg_attr(feature = "unstable", feature(asm, const_fn, generic_param_attrs, dropck_eyepatch))]
Aug 02 04:34:36.903 INFO kablam!   |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 04:34:36.903 INFO kablam! 
Aug 02 04:34:36.904 INFO kablam! error: aborting due to previous error
Aug 02 04:34:36.905 INFO kablam! 
Aug 02 04:34:36.905 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 04:34:36.912 INFO kablam! error: Could not compile `mcs`.
Aug 02 04:34:36.913 INFO kablam! 
Aug 02 04:34:36.913 INFO kablam! To learn more, run the command again with --verbose.
Aug 02 04:34:36.915 INFO kablam! su: No module specific data is present
Aug 02 04:34:38.168 INFO running `"docker" "rm" "-f" "690298d956170e2dc02d71754b5b505018fe4980c4b2340fd4ab41f3ac315014"`
Aug 02 04:34:38.314 INFO blam! 690298d956170e2dc02d71754b5b505018fe4980c4b2340fd4ab41f3ac315014