cargo-msrv: init at 0.4.0

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>

pkgs/development/tools/rust/cargo-msrv/default.nix

@@ -0,0 +1,41 @@
+{ lib
+, rustPlatform
+, fetchFromGitHub
+, nix-update-script
+, pkg-config
+, openssl
+}:
+
+rustPlatform.buildRustPackage rec {
+  pname = "cargo-msrv";
+  version = "0.4.0";
+
+  src = fetchFromGitHub {
+    owner = "foresterre";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "1ynv5d2rxlc1gzq93v8qjyl5063w7q42g9m95250yh2lmf9hdj5i";
+  };
+
+  cargoSha256 = "03rphdps17gzcmf8n5w14x5i5rjnfznsl150s3cz5vzhbmnlpszf";
+
+  passthru = {
+    updateScript = nix-update-script {
+      attrPath = pname;
+    };
+  };
+
+  # Integration tests fail
+  doCheck = false;
+
+  buildInputs = [ openssl ];
+
+  nativeBuildInputs = [ pkg-config ];
+
+  meta = with lib; {
+    description = "Cargo subcommand \"msrv\": assists with finding your minimum supported Rust version (MSRV)";
+    homepage = "https://github.com/foresterre/cargo-msrv";
+    license = with licenses; [ asl20 /* or */ mit ];
+    maintainers = with maintainers; [ otavio ];
+  };
+}

pkgs/top-level/all-packages.nix

@@ -11475,6 +11475,7 @@ in
   cargo-make = callPackage ../development/tools/rust/cargo-make {
     inherit (darwin.apple_sdk.frameworks) Security SystemConfiguration;
   };
+  cargo-msrv = callPackage ../development/tools/rust/cargo-msrv { };
   cargo-play = callPackage ../development/tools/rust/cargo-play { };
   cargo-raze = callPackage ../development/tools/rust/cargo-raze {
     inherit (darwin.apple_sdk.frameworks) Security;