Would have removed .. in heroku deploy log

Question

a few days ago I started to see

 Would have removed best_in_place (2.0.2)
 Would have removed thor (0.16.0)

in my heroku deploy output.

Answer 1

@Roman explication is correct.

If you have a custom buildpack (or you can easily fork it ans use it) it can be fixed in one line

https://github.com/heroku/heroku-buildpack-ruby/blob/master/lib/language_pack/ruby.rb

line 408-409 from

puts "Cleaning up the bundler cache."
pipe "bundle clean"

to

puts "Cleaning up the bundler cache."
pipe "bundle config --delete dry_run"
pipe "bundle clean"

bundle config --delete remove the config (note the underscore) and, by default dry-run is false.