Aug 01 19:19:13.408 INFO checking veryfast-0.3.1 against 1.27.2 for lazy_static-1
Aug 01 19:19:13.408 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 19:19:13.408 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 19:19:13.408 INFO running `"docker" "create" "-v" "/tmp/crater.AJnl81TtFz9b:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-2/1.27.2:/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 01 19:19:13.610 INFO blam! 9303617538feda774e1c781a5df3b39c3862fba95efb6d687370279d97b6352b
Aug 01 19:19:13.612 INFO running `"docker" "start" "-a" "9303617538feda774e1c781a5df3b39c3862fba95efb6d687370279d97b6352b"`
Aug 01 19:19:14.766 INFO kablam!     Checking veryfast v0.3.1 (file:///source)
Aug 01 19:19:14.969 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 19:19:14.969 INFO kablam!  --> src/lib.rs:1:1
Aug 01 19:19:14.969 INFO kablam!   |
Aug 01 19:19:14.969 INFO kablam! 1 | #![feature(allocator_api)]
Aug 01 19:19:14.969 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 19:19:14.970 INFO kablam! 
Aug 01 19:19:14.970 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 19:19:14.970 INFO kablam!  --> src/lib.rs:2:1
Aug 01 19:19:14.970 INFO kablam!   |
Aug 01 19:19:14.970 INFO kablam! 2 | #![feature(arc_counts)]
Aug 01 19:19:14.970 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 19:19:14.970 INFO kablam! 
Aug 01 19:19:14.971 INFO kablam! error: aborting due to 2 previous errors
Aug 01 19:19:14.971 INFO kablam! 
Aug 01 19:19:14.971 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 19:19:14.980 INFO kablam! error: Could not compile `veryfast`.
Aug 01 19:19:14.980 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 19:19:15.026 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 19:19:15.026 INFO kablam!  --> src/lib.rs:1:1
Aug 01 19:19:15.026 INFO kablam!   |
Aug 01 19:19:15.026 INFO kablam! 1 | #![feature(allocator_api)]
Aug 01 19:19:15.026 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 19:19:15.027 INFO kablam! 
Aug 01 19:19:15.027 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 19:19:15.027 INFO kablam!  --> src/lib.rs:2:1
Aug 01 19:19:15.027 INFO kablam!   |
Aug 01 19:19:15.027 INFO kablam! 2 | #![feature(arc_counts)]
Aug 01 19:19:15.027 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 19:19:15.027 INFO kablam! 
Aug 01 19:19:15.031 INFO kablam! error: aborting due to 2 previous errors
Aug 01 19:19:15.032 INFO kablam! 
Aug 01 19:19:15.032 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 19:19:15.037 INFO kablam! error: Could not compile `veryfast`.
Aug 01 19:19:15.038 INFO kablam! 
Aug 01 19:19:15.038 INFO kablam! To learn more, run the command again with --verbose.
Aug 01 19:19:15.039 INFO kablam! su: No module specific data is present
Aug 01 19:19:15.647 INFO running `"docker" "rm" "-f" "9303617538feda774e1c781a5df3b39c3862fba95efb6d687370279d97b6352b"`
Aug 01 19:19:15.844 INFO blam! 9303617538feda774e1c781a5df3b39c3862fba95efb6d687370279d97b6352b