On Sun, Jul 04 2021, Domagoj Stolfa wrote:

> * gnu/packages/crates-io.scm (rust-hmac-0.10): New public variable.
> ---
>  gnu/packages/crates-io.scm | 29 +++++++++++++++++++++++++++++
>  1 file changed, 29 insertions(+)
>
> diff --git a/gnu/packages/crates-io.scm b/gnu/packages/crates-io.scm
> index b4609f0f52..9e38efb765 100644
> --- a/gnu/packages/crates-io.scm
> +++ b/gnu/packages/crates-io.scm
> @@ -20070,6 +20070,35 @@ Derivation Function (HKDF).")
>        "Generic implementation of Hash-based Message Authentication Code (HMAC)")
>      (license (list license:expat license:asl2.0))))
>  
> +(define-public rust-hmac-0.10

‘rust-hmac-0.11’ was added in [10/21], is there any reason for not using
that package?