Aug 02 12:32:04.970 INFO checking concurrent-0.2.2 against 1.27.2+tmplazy for lazy_static-1
Aug 02 12:32:04.970 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 12:32:04.970 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 12:32:04.970 INFO running `"docker" "create" "-v" "/tmp/crater.fgzhO2SqFZAi:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-6/1.27.2+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 12:32:05.230 INFO blam! cd281aa381ecc6ec55b1cf1e272e7150d12cdfdfbf54d5427f83cba97b8cc8b3
Aug 02 12:32:05.230 INFO running `"docker" "start" "-a" "cd281aa381ecc6ec55b1cf1e272e7150d12cdfdfbf54d5427f83cba97b8cc8b3"`
Aug 02 12:32:06.655 INFO kablam!     Checking spin v0.4.8
Aug 02 12:32:06.788 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 12:32:06.788 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.8/src/lib.rs:6:30
Aug 02 12:32:06.788 INFO kablam!   |
Aug 02 12:32:06.788 INFO kablam! 6 | #![cfg_attr(feature = "asm", feature(asm))]
Aug 02 12:32:06.788 INFO kablam!   |                              ^^^^^^^^^^^^^
Aug 02 12:32:06.788 INFO kablam! 
Aug 02 12:32:06.788 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 12:32:06.788 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.8/src/lib.rs:7:42
Aug 02 12:32:06.788 INFO kablam!   |
Aug 02 12:32:06.788 INFO kablam! 7 | #![cfg_attr(feature = "core_intrinsics", feature(core_intrinsics))]
Aug 02 12:32:06.788 INFO kablam!   |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 12:32:06.788 INFO kablam! 
Aug 02 12:32:06.788 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 12:32:06.788 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.8/src/lib.rs:8:35
Aug 02 12:32:06.788 INFO kablam!   |
Aug 02 12:32:06.788 INFO kablam! 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
Aug 02 12:32:06.788 INFO kablam!   |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 12:32:06.788 INFO kablam! 
Aug 02 12:32:06.790 INFO kablam! error: aborting due to 3 previous errors
Aug 02 12:32:06.790 INFO kablam! 
Aug 02 12:32:06.790 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 12:32:06.794 INFO kablam! error: Could not compile `spin`.
Aug 02 12:32:06.794 INFO kablam! 
Aug 02 12:32:06.794 INFO kablam! To learn more, run the command again with --verbose.
Aug 02 12:32:06.796 INFO kablam! su: No module specific data is present
Aug 02 12:32:07.458 INFO running `"docker" "rm" "-f" "cd281aa381ecc6ec55b1cf1e272e7150d12cdfdfbf54d5427f83cba97b8cc8b3"`
Aug 02 12:32:07.636 INFO blam! cd281aa381ecc6ec55b1cf1e272e7150d12cdfdfbf54d5427f83cba97b8cc8b3