Thanks intermediates_dir did the trick
#' ---
#' title: "Untitled"
#' author: "statquant"
#' date: "03/10/2020"
#' ---
#+
Sys.sleep(10)
#' # Section
#' test I've been doing
#+ test, eval = FALSE
#render(input="q2.R") # q2.spin.{R,Rmd,html} in directory
#render(input="q2.R", output_dir = "./output") # q2.spin.{R,Rmd} in directory htmp in output
#render(input="q2.R", output_dir = "./output", intermediates_dir = "./tmp") # perfect