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　-----> Compiling Ruby/Rails

!

! There was an error parsing your Gemfile, we cannot continue

! ruby: invalid option --jit (-h will show valid options) (RuntimeError)

!

! Push rejected, failed to compile Ruby app.

どゆことw

$ heroku config:get RUBYOPT -a zundan-mastodon-ruby26
--jit --jit-verbose=0

ふむー

$ heroku config:unset RUBYOPT -a zundan-mastodon-ruby26

してデプロイやりなおしー