nix: Update to lld 13, drop flake-compat (was unused)

flake.lock

@@ -30,22 +30,6 @@
         "type": "github"
       }
     },
-    "flakeCompat": {
-      "flake": false,
-      "locked": {
-        "lastModified": 1627913399,
-        "narHash": "sha256-hY8g6H2KFL8ownSiFeMOjwPC8P0ueXpCVEbxgda3pko=",
-        "owner": "edolstra",
-        "repo": "flake-compat",
-        "rev": "12c64ca55c1014cdc1b16ed5a804aa8576601ff2",
-        "type": "github"
-      },
-      "original": {
-        "owner": "edolstra",
-        "repo": "flake-compat",
-        "type": "github"
-      }
-    },
     "nixCargoIntegration": {
       "inputs": {
         "devshell": "devshell",
@@ -103,7 +87,6 @@
     },
     "root": {
       "inputs": {
-        "flakeCompat": "flakeCompat",
         "nixCargoIntegration": "nixCargoIntegration",
         "nixpkgs": "nixpkgs",
         "rust-overlay": "rust-overlay"

flake.nix

@@ -9,10 +9,6 @@
       inputs.nixpkgs.follows = "nixpkgs";
       inputs.rustOverlay.follows = "rust-overlay";
     };
-    flakeCompat = {
-      url = "github:edolstra/flake-compat";
-      flake = false;
-    };
   };
 
   outputs = inputs@{ self, nixCargoIntegration, ... }:
@@ -63,7 +59,7 @@
             '';
           };
         shell = common: prev: {
-          packages = prev.packages ++ (with common.pkgs; [ lld_12 lldb cargo-tarpaulin ]);
+          packages = prev.packages ++ (with common.pkgs; [ lld_13 lldb cargo-tarpaulin ]);
           env = prev.env ++ [
             { name = "HELIX_RUNTIME"; eval = "$PWD/runtime"; }
             { name = "RUST_BACKTRACE"; value = "1"; }