Fix downloads directory not being created.

Library/Homebrew/download_strategy.rb

@@ -292,6 +292,7 @@ class CurlDownloadStrategy < AbstractFileDownloadStrategy
           raise CurlDownloadStrategyError, url
         end
         ignore_interrupts do
+          cached_location.dirname.mkpath
           temporary_path.rename(cached_location)
           symlink_location.dirname.mkpath
         end
@@ -347,8 +348,6 @@ class CurlDownloadStrategy < AbstractFileDownloadStrategy
   end
 
   def _fetch(url:, resolved_url:)
-    temporary_path.dirname.mkpath
-
     ohai "Downloading from #{resolved_url}" if url != resolved_url
 
     if ENV["HOMEBREW_NO_INSECURE_REDIRECT"] &&

Library/Homebrew/utils/curl.rb

@@ -47,8 +47,10 @@ def curl(*args)
 end
 
 def curl_download(*args, to: nil, continue_at: "-", **options)
-  had_incomplete_download ||= File.exist?(to)
-  curl("--location", "--remote-time", "--continue-at", continue_at.to_s, "--output", to, *args, **options)
+  destination = Pathname(to)
+  had_incomplete_download ||= destination.exist?
+  destination.dirname.mkpath
+  curl("--location", "--remote-time", "--continue-at", continue_at.to_s, "--output", destination, *args, **options)
 rescue ErrorDuringExecution => e
   # `curl` error 33: HTTP server doesn't seem to support byte ranges. Cannot resume.
   # HTTP status 416: Requested range not satisfiable