Brew test bot bottling errors

gistfile1.txt

$ brew test-bot --skip-setup --root-url=https://dl.bintray.com/brainstorm/bottles-musl-cross --bintray-org=brainstorm --tap=brainstorm/musl-cross
Homebrew/homebrew-test-bot fe05361 (Merge pull request #338 from Bo98/dep_no_dev)
ARGV: --skip-setup --root-url=https://dl.bintray.com/brainstorm/bottles-musl-cross --bintray-org=brainstorm --tap=brainstorm/musl-cross
Homebrew.args: #<Homebrew::CLI::Args argv=["test-bot", "--skip-setup", "--root-url=https://dl.bintray.com/brainstorm/bottles-musl-cross", "--bintray-org=brainstorm", "--tap=brainstorm/musl-cross"], remaining=[], cmdline_args=["--skip-setup", "--root-url=https://dl.bintray.com/brainstorm/bottles-musl-cross", "--bintray-org=brainstorm", "--tap=brainstorm/musl-cross"], skip_setup?=true, root_url="https://dl.bintray.com/brainstorm/bottles-musl-cross", bintray_org="brainstorm", tap="brainstorm/musl-cross">
Error: No known CI provider detected! If you are using GitHub Actions or Jenkins
ghprb-plugin, then we cannot find the expected environment
variables! Check you have e.g. exported them to a Docker container.
Homebrew/brew 2.2.9-25-g19050bd73 (Merge pull request #6974 from athas/cabal-v2)
Homebrew/homebrew-core 00f1f5ca7c (jenkins 2.224 (#51339))

Testing tap brainstorm/musl-cross with:
  origin/master   19050bd73 (Merge pull request #6974 from athas/cabal-v2)
  HEAD            19050bd73 (Merge pull request #6974 from athas/cabal-v2)
  diff_start_sha1 19050bd738e36d20eb374d8a43c694807876c82d
  diff_end_sha1   19050bd73

Formula changes to be tested:
  added formulae    (empty)
  modified formulae (empty)
  deleted formulae  (empty)

==> brew readall --aliases brainstorm/musl-cross

Solution (I was missing the non-flag argument):

$ brew test-bot --skip-setup --root-url=https://dl.bintray.com/brainstorm/bottles-musl-cross --bintray-org=brainstorm --tap=brainstorm/musl-cross brainstorm/homebrew-musl-cross/musl-cross