gnu: Add rust-trust-dns-openssl-0.19.

* gnu/packages/crates-io.scm (rust-trust-dns-openssl-0.19): New variable.

gnu/packages/crates-io.scm

@@ -28532,6 +28532,35 @@ automatically instrumenting functions.")
 extension for the Trust-DNS client to use native-tls for TLS.")
     (license (list license:expat license:asl2.0))))
 
+(define-public rust-trust-dns-openssl-0.19
+  (package
+    (name "rust-trust-dns-openssl")
+    (version "0.19.5")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "trust-dns-openssl" version))
+       (file-name (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32
+         "0as4jzrscjlmgj04l2aa2lf09vpd0fg5v0vfz019ybxgiqn89g45"))))
+    (build-system cargo-build-system)
+    (arguments
+     `(#:cargo-inputs
+       (("rust-futures" ,rust-futures-0.3)
+        ("rust-openssl" ,rust-openssl-0.10)
+        ("rust-tokio" ,rust-tokio-0.2)
+        ("rust-tokio-openssl" ,rust-tokio-openssl-0.4)
+        ("rust-trust-dns-proto" ,rust-trust-dns-proto-0.19))
+       #:cargo-development-inputs
+       (("rust-openssl" ,rust-openssl-0.10)
+        ("rust-tokio" ,rust-tokio-0.2))))
+    (home-page "http://www.trust-dns.org/index.html")
+    (synopsis "tokio-openssl extension for the Trust-DNS client")
+    (description "Trust-DNS is a safe and secure DNS library.  This is an
+extension for the Trust-DNS client to use tokio-openssl for TLS.")
+    (license (list license:expat license:asl2.0))))
+
 (define-public rust-trust-dns-proto-0.19
   (package
     (name "rust-trust-dns-proto")