Try another nokogiri version to see if it builds

Gemfile

@@ -1,3 +1,3 @@
 source 'https://rubygems.org'
 
-gem 'nokogiri', '~>1.10.10'
+gem 'nokogiri', '~>1.12.5'

Gemfile.lock

@@ -1,15 +1,17 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    mini_portile2 (2.4.0)
-    nokogiri (1.10.10)
-      mini_portile2 (~> 2.4.0)
+    mini_portile2 (2.6.1)
+    nokogiri (1.12.5)
+      mini_portile2 (~> 2.6.1)
+      racc (~> 1.4)
+    racc (1.6.0)
 
 PLATFORMS
   ruby
 
 DEPENDENCIES
-  nokogiri (~> 1.10.10)
+  nokogiri (~> 1.12.5)
 
 BUNDLED WITH
    2.2.24

gemset.nix

@@ -4,20 +4,30 @@
     platforms = [];
     source = {
       remotes = ["https://rubygems.org"];
-      sha256 = "15zplpfw3knqifj9bpf604rb3wc1vhq6363pd6lvhayng8wql5vy";
+      sha256 = "1lvxm91hi0pabnkkg47wh1siv56s6slm2mdq1idfm86dyfidfprq";
       type = "gem";
     };
-    version = "2.4.0";
+    version = "2.6.1";
   };
   nokogiri = {
-    dependencies = ["mini_portile2"];
+    dependencies = ["mini_portile2" "racc"];
     groups = ["default"];
     platforms = [];
     source = {
       remotes = ["https://rubygems.org"];
-      sha256 = "0xmf60nj5kg9vaj5bysy308687sgmkasgx06vbbnf94p52ih7si2";
+      sha256 = "1v02g7k7cxiwdcahvlxrmizn3avj2q6nsjccgilq1idc89cr081b";
       type = "gem";
     };
-    version = "1.10.10";
+    version = "1.12.5";
+  };
+  racc = {
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0la56m0z26j3mfn1a9lf2l03qx1xifanndf9p3vx1azf6sqy7v9d";
+      type = "gem";
+    };
+    version = "1.6.0";
   };
 }