chore: nix build improvements

Cargo.toml

@@ -13,7 +13,7 @@ anyhow = "1"
 gflags = "^0.3"
 nursery = "^0.0.1"
 metrics = "0.20.1"
-metrics-exporter-prometheus = "0.11.0"
+metrics-exporter-prometheus = "0.17.2"
 tiny_http = "0.12.0"
 socket2 = "0.5.1" 
 icmp-socket = "0.2.0"

flake.lock

@@ -1,5 +1,27 @@
 {
   "nodes": {
+    "fenix": {
+      "inputs": {
+        "nixpkgs": [
+          "naersk",
+          "nixpkgs"
+        ],
+        "rust-analyzer-src": "rust-analyzer-src"
+      },
+      "locked": {
+        "lastModified": 1752475459,
+        "narHash": "sha256-z6QEu4ZFuHiqdOPbYss4/Q8B0BFhacR8ts6jO/F/aOU=",
+        "owner": "nix-community",
+        "repo": "fenix",
+        "rev": "bf0d6f70f4c9a9cf8845f992105652173f4b617f",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "fenix",
+        "type": "github"
+      }
+    },
     "flake-compat": {
       "flake": false,
       "locked": {
@@ -33,14 +55,17 @@
     },
     "naersk": {
       "inputs": {
-        "nixpkgs": "nixpkgs"
+        "fenix": "fenix",
+        "nixpkgs": [
+          "nixpkgs"
+        ]
       },
       "locked": {
-        "lastModified": 1671096816,
+        "lastModified": 1752689277,
-        "narHash": "sha256-ezQCsNgmpUHdZANDCILm3RvtO1xH8uujk/+EqNvzIOg=",
+        "narHash": "sha256-uldUBFkZe/E7qbvxa3mH1ItrWZyT6w1dBKJQF/3ZSsc=",
         "owner": "nix-community",
         "repo": "naersk",
-        "rev": "d998160d6a076cfe8f9741e56aeec7e267e3e114",
+        "rev": "0e72363d0938b0208d6c646d10649164c43f4d64",
         "type": "github"
       },
       "original": {
@@ -51,11 +76,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1678724065,
+        "lastModified": 1752747119,
-        "narHash": "sha256-MjeRjunqfGTBGU401nxIjs7PC9PZZ1FBCZp/bRB3C2M=",
+        "narHash": "sha256-2Kp9St3Pbsmu+xMsobLcgzzUxPvZR7alVJWyuk2BAPc=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "b8afc8489dc96f29f69bec50fdc51e27883f89c1",
+        "rev": "fa0ef8a6bb1651aa26c939aeb51b5f499e86b0ec",
         "type": "github"
       },
       "original": {
@@ -67,7 +92,25 @@
       "inputs": {
         "flake-compat": "flake-compat",
         "flake-utils": "flake-utils",
-        "naersk": "naersk"
+        "naersk": "naersk",
+        "nixpkgs": "nixpkgs"
+      }
+    },
+    "rust-analyzer-src": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1752428706,
+        "narHash": "sha256-EJcdxw3aXfP8Ex1Nm3s0awyH9egQvB2Gu+QEnJn2Sfg=",
+        "owner": "rust-lang",
+        "repo": "rust-analyzer",
+        "rev": "591e3b7624be97e4443ea7b5542c191311aa141d",
+        "type": "github"
+      },
+      "original": {
+        "owner": "rust-lang",
+        "ref": "nightly",
+        "repo": "rust-analyzer",
+        "type": "github"
       }
     }
   },

flake.nix

@@ -1,11 +1,15 @@
 {
     inputs = {
+        nixpkgs.url = "nixpkgs";
         flake-utils.url = "github:numtide/flake-utils";
-        naersk.url = "github:nix-community/naersk";
+        naersk = {
-        flake-compat = { url = github:edolstra/flake-compat; flake = false; };
+            url = "github:nix-community/naersk";
+            inputs.nixpkgs.follows = "nixpkgs";
+        };
+        flake-compat = { url = "github:edolstra/flake-compat"; flake = false; };
     };
 
-    outputs = {self, flake-utils, naersk, flake-compat}:
+    outputs = {self, flake-utils, naersk, flake-compat, nixpkgs}:
         flake-utils.lib.eachDefaultSystem (system:
             let
                 naersk-lib = naersk.lib."${system}";