Aug 01 18:14:47.542 INFO checking zcfg_flag_parser-0.2.0 against 1.27.2 for lazy_static-1
Aug 01 18:14:47.542 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 18:14:47.542 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 18:14:47.542 INFO running `"docker" "create" "-v" "/tmp/crater.UvJkz8CTtx04:/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 01 18:14:47.731 INFO blam! 17779752726e99fe3dfb2e92102d5eccf628b446b564a7fbdfea8f4d3f8f8c6d
Aug 01 18:14:47.732 INFO running `"docker" "start" "-a" "17779752726e99fe3dfb2e92102d5eccf628b446b564a7fbdfea8f4d3f8f8c6d"`
Aug 01 18:14:49.072 INFO kablam!     Checking zcfg v0.2.0
Aug 01 18:14:49.305 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 18:14:49.305 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/zcfg-0.2.0/src/lib.rs:1:1
Aug 01 18:14:49.305 INFO kablam!   |
Aug 01 18:14:49.305 INFO kablam! 1 | #![feature(used)]
Aug 01 18:14:49.305 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 01 18:14:49.305 INFO kablam! 
Aug 01 18:14:49.306 INFO kablam! error: aborting due to previous error
Aug 01 18:14:49.306 INFO kablam! 
Aug 01 18:14:49.306 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 18:14:49.312 INFO kablam! error: Could not compile `zcfg`.
Aug 01 18:14:49.312 INFO kablam! 
Aug 01 18:14:49.312 INFO kablam! To learn more, run the command again with --verbose.
Aug 01 18:14:49.313 INFO kablam! su: No module specific data is present
Aug 01 18:14:49.937 INFO running `"docker" "rm" "-f" "17779752726e99fe3dfb2e92102d5eccf628b446b564a7fbdfea8f4d3f8f8c6d"`
Aug 01 18:14:50.112 INFO blam! 17779752726e99fe3dfb2e92102d5eccf628b446b564a7fbdfea8f4d3f8f8c6d