Warning: Calling 'devel' blocks in formulae is deprecated! Use 'head' blocks or @-versioned formulae instead.
Please report this issue to the git-jiro/jiro tap (not Homebrew/brew or Homebrew/core), or even better, submit a PR to fix it:
/usr/local/Homebrew/Library/Taps/git-jiro/homebrew-jiro/gridcoin.rb:51
Warning: Calling 'devel' blocks in formulae is deprecated! Use 'head' blocks or @-versioned formulae instead. Please report this issue to the git-jiro/jiro tap (not Homebrew/brew or Homebrew/core), or even better, submit a PR to fix it: /usr/local/Homebrew/Library/Taps/git-jiro/homebrew-jiro/gridcoin.rb:51