treewide: remove implicit use of stdenv.lib

pkgs/build-support/coq/default.nix

@@ -35,7 +35,7 @@ let
     "extraInstallFlags" "setCOQBIN" "mlPlugin"
     "dropAttrs" "dropDerivationAttrs" "keepAttrs" ] ++ dropAttrs) keepAttrs;
   fetch = import ../coq/meta-fetch/default.nix
-    { inherit stdenv fetchzip; } ({
+    { inherit lib stdenv fetchzip; } ({
       inherit release releaseRev;
       location = { inherit domain owner repo; };
     } // optionalAttrs (args?fetcher) {inherit fetcher;});

pkgs/build-support/coq/meta-fetch/default.nix

@@ -1,5 +1,6 @@
-{ stdenv, fetchzip }@args:
-let lib = import ../extra-lib.nix {inherit (args.stdenv) lib;}; in
+{ lib, stdenv, fetchzip }@args:
+let lib' = lib; in
+let lib = import ../extra-lib.nix {lib = lib';}; in
 with builtins; with lib;
 let
   default-fetcher = {domain ? "github.com", owner ? "", repo, rev, name ? "source", sha256 ? null, ...}@args: