gnu: Add rust-cargo-config2-0.1.

* gnu/packages/crates-io.scm (rust-cargo-config2-0.1): New variable.

gnu/packages/crates-io.scm

@@ -10343,6 +10343,45 @@ capabilities.")
 the library crate of Cargo.")
     (license (list license:expat license:asl2.0))))
 
+(define-public rust-cargo-config2-0.1
+  (package
+    (name "rust-cargo-config2")
+    (version "0.1.8")
+    (source (origin
+              (method url-fetch)
+              (uri (crate-uri "cargo-config2" version))
+              (file-name (string-append name "-" version ".tar.gz"))
+              (sha256
+               (base32
+                "1vxbyjd2zm75k5jx3hgqi9h5fj3j37ahrpyl1davsz5zzk1j5mj1"))))
+    (build-system cargo-build-system)
+    (arguments
+     `(#:tests? #f          ; Not all files included.
+       #:cargo-inputs
+       (("rust-cfg-expr" ,rust-cfg-expr-0.15)
+        ("rust-home" ,rust-home-0.5)
+        ("rust-once-cell" ,rust-once-cell-1)
+        ("rust-serde" ,rust-serde-1)
+        ("rust-shell-escape" ,rust-shell-escape-0.1)
+        ("rust-toml" ,rust-toml-0.7))
+       #:cargo-development-inputs
+       (("rust-anyhow" ,rust-anyhow-1)
+        ("rust-build-context" ,rust-build-context-0.1)
+        ("rust-clap" ,rust-clap-4)
+        ("rust-duct" ,rust-duct-0.13)
+        ("rust-fs-err" ,rust-fs-err-2)
+        ("rust-lexopt" ,rust-lexopt-0.3)
+        ("rust-rustversion" ,rust-rustversion-1)
+        ("rust-serde-json" ,rust-serde-json-1)
+        ("rust-static-assertions" ,rust-static-assertions-1)
+        ("rust-tempfile" ,rust-tempfile-3)
+        ("rust-toml" ,rust-toml-0.7)
+        ("rust-walkdir" ,rust-walkdir-2))))
+    (home-page "https://github.com/taiki-e/cargo-config2")
+    (synopsis "Load and resolve Cargo configuration")
+    (description "Load and resolve Cargo configuration.")
+    (license (list license:asl2.0 license:expat))))
+
 (define-public rust-cargo-metadata-0.15
   (package
     (name "rust-cargo-metadata")