Aug 01 17:32:49.645 INFO checking WireGuard/wireguard-rs against 1.27.2 for lazy_static-1
Aug 01 17:32:49.645 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 17:32:49.645 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 17:32:49.645 INFO running `"docker" "create" "-v" "/tmp/crater.E5ydxawDsuYI:/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 17:32:49.901 INFO blam! af4293a16ef0dd348a83e1d16bba40e9881061d43ef1ca4eeb463e58f4535487
Aug 01 17:32:49.901 INFO running `"docker" "start" "-a" "af4293a16ef0dd348a83e1d16bba40e9881061d43ef1ca4eeb463e58f4535487"`
Aug 01 17:32:51.212 INFO kablam!    Compiling rand_core v0.2.1
Aug 01 17:32:51.212 INFO kablam!    Compiling subtle v0.6.3
Aug 01 17:32:51.221 INFO kablam!     Checking subtle v0.5.1
Aug 01 17:32:51.221 INFO kablam!    Compiling nix v0.11.0-pre (https://github.com/mcginty/nix?branch=ipv6-pktinfo#d5c3de15)
Aug 01 17:32:51.222 INFO kablam!     Checking static_slice v0.0.3
Aug 01 17:32:51.222 INFO kablam!     Checking cast v0.2.2
Aug 01 17:32:51.222 INFO kablam!     Checking thread-scoped v1.0.2
Aug 01 17:32:52.914 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 17:32:52.914 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/subtle-0.6.3/src/lib.rs:13:34
Aug 01 17:32:52.914 INFO kablam!    |
Aug 01 17:32:52.914 INFO kablam! 13 | #![cfg_attr(feature = "nightly", feature(asm))]
Aug 01 17:32:52.914 INFO kablam!    |                                  ^^^^^^^^^^^^^
Aug 01 17:32:52.914 INFO kablam! 
Aug 01 17:32:52.915 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 17:32:52.915 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/subtle-0.6.3/src/lib.rs:14:34
Aug 01 17:32:52.915 INFO kablam!    |
Aug 01 17:32:52.915 INFO kablam! 14 | #![cfg_attr(feature = "nightly", feature(external_doc))]
Aug 01 17:32:52.915 INFO kablam!    |                                  ^^^^^^^^^^^^^^^^^^^^^^
Aug 01 17:32:52.916 INFO kablam! 
Aug 01 17:32:52.918 INFO kablam! error: aborting due to 2 previous errors
Aug 01 17:32:52.928 INFO kablam! 
Aug 01 17:32:52.929 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 17:32:52.953 INFO kablam! error: Could not compile `subtle`.
Aug 01 17:32:52.954 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 17:32:52.972 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 17:32:52.972 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/subtle-0.6.3/src/lib.rs:13:34
Aug 01 17:32:52.972 INFO kablam!    |
Aug 01 17:32:52.973 INFO kablam! 13 | #![cfg_attr(feature = "nightly", feature(asm))]
Aug 01 17:32:52.973 INFO kablam!    |                                  ^^^^^^^^^^^^^
Aug 01 17:32:53.008 INFO kablam! 
Aug 01 17:32:53.009 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 17:32:53.009 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/subtle-0.6.3/src/lib.rs:14:34
Aug 01 17:32:53.009 INFO kablam!    |
Aug 01 17:32:53.009 INFO kablam! 14 | #![cfg_attr(feature = "nightly", feature(external_doc))]
Aug 01 17:32:53.009 INFO kablam!    |                                  ^^^^^^^^^^^^^^^^^^^^^^
Aug 01 17:32:53.009 INFO kablam! 
Aug 01 17:32:53.010 INFO kablam! error: aborting due to 2 previous errors
Aug 01 17:32:53.010 INFO kablam! 
Aug 01 17:32:53.010 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 17:32:53.069 INFO kablam! error: Could not compile `subtle`.
Aug 01 17:32:53.069 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 17:32:56.982 INFO kablam! error: build failed
Aug 01 17:32:56.985 INFO kablam! su: No module specific data is present
Aug 01 17:32:57.506 INFO running `"docker" "rm" "-f" "af4293a16ef0dd348a83e1d16bba40e9881061d43ef1ca4eeb463e58f4535487"`
Aug 01 17:32:57.668 INFO blam! af4293a16ef0dd348a83e1d16bba40e9881061d43ef1ca4eeb463e58f4535487