1 files changed, 19 insertions, 14 deletions
diff --git a/nixpkgs/pkgs/development/tools/rust/cargo-binutils/default.nix b/nixpkgs/pkgs/development/tools/rust/cargo-binutils/default.nix
index 8b40d9b686d9..f499512ce532 100644
--- a/nixpkgs/pkgs/development/tools/rust/cargo-binutils/default.nix
+++ b/nixpkgs/pkgs/development/tools/rust/cargo-binutils/default.nix
@@ -5,23 +5,28 @@ rustPlatform.buildRustPackage rec {
   version = "0.3.3";
 
   # Upstream doesn't commit `Cargo.lock`, see https://github.com/rust-embedded/cargo-binutils/pull/99
-  src = let
-    repo = fetchFromGitHub {
-      owner = "rust-embedded";
-      repo = pname;
-      rev = "v${version}";
-      sha256 = "sha256-Dgn+f4aSsDSh+RC8yvt3ydkdtwib5jEVsnZkod5c7Vo=";
-    };
-  in runCommand "source" { } ''
-    cp -R ${repo} $out
-    chmod -R +w $out
-    cp ${./Cargo.lock} $out/Cargo.lock
-  '';
+  src =
+    let
+      repo = fetchFromGitHub {
+        owner = "rust-embedded";
+        repo = pname;
+        rev = "v${version}";
+        sha256 = "sha256-Dgn+f4aSsDSh+RC8yvt3ydkdtwib5jEVsnZkod5c7Vo=";
+      };
+    in
+    runCommand "source" { } ''
+      cp -R ${repo} $out
+      chmod -R +w $out
+      cp ${./Cargo.lock} $out/Cargo.lock
+    '';
 
-  cargoSha256 = "sha256-Zrl269PacPi81TrGTIDzmVndgGY5i5lYyspiOj43rpw=";
+  cargoSha256 = "sha256-6du86HxkDQAeIXScXBKuv0j4YZiG4O6IwVIXZnJgTO8=";
 
   meta = with lib; {
-    description = "Cargo subcommands to invoke the LLVM tools shipped with the Rust toolchain";
+    description = "Cargo subcommands to invoke the LLVM tools shipped with the Rust toolchain.";
+    longDescription = ''
+      In order for this to work, you either need to run `rustup component add llvm-tools-preview` or install the `llvm-tools-preview` component using your Nix library (e.g. nixpkgs-mozilla, or rust-overlay)
+    '';
     homepage = "https://github.com/rust-embedded/cargo-binutils";
     license = with licenses; [ asl20 mit ];
     maintainers = with maintainers; [ stupremee ];