Canceled build still waits for connection timeout

[4censord]

While testing the examples I supplied the wrong ip address for my xcp-ng, so i canceled the build.

After Cancelling build after receiving interrupt packer still waits for the connection attempt to time out before terminating.

To Reproduce:

• give packer an valid IPaddress at which no xenserver is running
• start the build and cancel the build
• wait for the connection to timeout

xenserver-iso.centos8-netinstall: output will be in this color.

Cancelling build after receiving interrupt
Build 'xenserver-iso.centos8-netinstall' errored after 2 minutes 8 seconds: Post "https://<sensitive>": dial tcp <sensitive>:443: connect: connection timed out

==> Wait completed after 2 minutes 8 seconds
Cleanly cancelled builds after being interrupted.