tree b381f3643c04e14ed7f05842cf59c0943a65c886
parent ee6ff69229ee20914fe262d32624f0b01e441e20
author Michal Rostecki <vadorovsky@gmail.com> 1651666290 +0200
committer Emilio Cobos Álvarez <emilio@crisal.io> 1651963974 +0200

Derive from any other trait only when deriving from Copy

It's impossible to #[derive] from any other trait when not deriving from
Copy when using the newest Rust nightly. Any attempt to do that results
in the following error:

  error: `#[derive]` can't be used on a `#[repr(packed)]` struct that does not derive Copy (error E0133)

Fixes: #2083
Signed-off-by: Michal Rostecki <vadorovsky@gmail.com>