diff --git a/gnu/packages/crates-io.scm b/gnu/packages/crates-io.scm
index 03674ce1d1..12e4165261 100644
--- a/gnu/packages/crates-io.scm
+++ b/gnu/packages/crates-io.scm
@@ -22007,34 +22007,6 @@ testing.")
 like Don libes expect.")
     (license license:expat)))
 
-(define-public rust-extend-0.1
-  (package
-    (name "rust-extend")
-    (version "0.1.2")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (crate-uri "extend" version))
-       (file-name (string-append name "-" version ".tar.gz"))
-       (sha256
-        (base32 "01azyniinxrwng13hkj450gplp1ajslbqzksjg4dk6655sks6zgl"))))
-    (build-system cargo-build-system)
-    (arguments
-     `(#:cargo-test-flags '("--release" "--" "--skip=test::test_ui" )
-       #:cargo-inputs
-       (("rust-proc-macro-error" ,rust-proc-macro-error-1)
-        ("rust-proc-macro2" ,rust-proc-macro2-1)
-        ("rust-quote" ,rust-quote-1)
-        ("rust-syn" ,rust-syn-1))
-       #:cargo-development-inputs
-       (("rust-trybuild" ,rust-trybuild-1))))
-    (home-page "https://github.com/davidpdrsn/extend")
-    (synopsis "Create extensions for types you don't own")
-    (description
-     "This crates creates extensions for types you don't own with extension
-traits but without the boilerplate.")
-    (license license:expat)))
-
 (define-public rust-eyre-0.6
   (package
     (name "rust-eyre")