Why Do Some Builds Get Cancelled?

There are a few reasons why a build might display as cancelled:

• A user clicked "Cancel Build" button during a manually triggered build
  • Currently, this is only available on Production Builds when the "incremental builds" feature is disabled
• A PR was been merged while a Pull Request Build was in progress
  • The deploy preview will stop building
• Several builds were triggered in quick succession
  • The middle builds will be cancelled and we will only process the first and last build, since a full rebuild will capture all changes at once