[DEVOPS-1013] bump nixpkgs and add enablePhaseMetrics=true

Author: disassembler

default.nix

@@ -116,13 +116,20 @@ let
     });
   };
 
+  metricOverlay = self: super: {
+    mkDerivation = args: super.mkDerivation (args // {
+      enablePhaseMetrics = true;
+    });
+  };
+
   cardanoPkgsBase = ((import ./pkgs { inherit pkgs; }).override {
     ghc = overrideDerivation pkgs.haskell.compiler.ghc822 (drv: {
       patches = drv.patches ++ [ ./ghc-8.0.2-darwin-rec-link.patch ];
     });
   });
 
   activeOverlays = [ requiredOverlay ]
+      ++ [ metricOverlay ]
       ++ optional enableBenchmarks benchmarkOverlay
       ++ optional enableDebugging debugOverlay
       ++ optional forceDontCheck dontCheckOverlay;

nixpkgs-src.json

@@ -1,5 +1,5 @@
 {
-    "rev":            "118431d4d68c68a6605932d94aae0a75a8309d95",
-    "sha256":         "0w2a1ll8c5bysjqbm1ljzcgrmf0gkwm1c97xpfsb8k3ns56x4h52",
-    "sha256unpacked": "146z9syzfiq1phq3gs2kacq2zcvyzbpzxy52vhjgxhm1ygy449lm"
+    "rev":            "1377378db42a0d1a9d26c73a1e7fdaa04506ae03",
+    "sha256":         "00yb7d3b1aibwxwkpi4aa5q2s39pp3cdd979ah61cs8sgapac271",
+    "sha256unpacked": "1in3zkd92h5mvvjx8gdj9jgnfn6l8yrjlmhhf39whj2a6zg8lyly"
 }