crystal_1_14: drop

[donovanglover]

https://crystal-lang.org/releases

We no longer need to keep around the latest version released with a stable NixOS since Crystal has been at 1.x for a while now.

Most software in nixpkgs should be able to be built with the latest version of Crystal. Software depending on internal APIs should have their build failures reported upstream since other distributions won't ship older versions of Crystal.

cc @peterhoeg for adding the original comment

Part of #380143

Things done

• Built on platform(s)
  • x86_64-linux
  • aarch64-linux
  • x86_64-darwin
  • aarch64-darwin
• For non-Linux: Is sandboxing enabled in nix.conf? (See Nix manual)
  • sandbox = relaxed
  • sandbox = true
• Tested, as applicable:
  • NixOS test(s) (look inside nixos/tests)
  • and/or package tests
  • or, for functions and "core" functionality, tests in lib/tests or pkgs/test
  • made sure NixOS tests are linked to the relevant packages
• Tested compilation of all packages that depend on this change using nix-shell -p nixpkgs-review --run "nixpkgs-review rev HEAD". Note: all changes have to be committed, also see nixpkgs-review usage
• Tested basic functionality of all binary files (usually in ./result/bin/)
• 25.05 Release Notes (or backporting 24.11 and 25.05 Release notes)
  • (Package updates) Added a release notes entry if the change is major or breaking
  • (Module updates) Added a release notes entry if the change is significant
  • (Module addition) Added a release notes entry if adding a new NixOS module
• Fits CONTRIBUTING.md.

---

Add a 👍 reaction to pull requests you find important.

[will]

One problem with dropping 1.14 is that 1.15 (and 1.15.1) broke support for the (afaik only) ssh library spider-gazelle/ssh2.cr#22 crystal-lang/crystal#15377

It has been convenient for me to have 1.14 around to fall back to, but also I suppose it wouldn't be the end of the world to pin an extra old version of nixpkgs to still keep 1.14 around. So I'm not against dropping it, just wanted to share this problem.

[donovanglover]

I think that's a good reason to keep 1.14 for now. Not sure when wait_readable will be merged but it's also a blocker for phil294/AHK_X11#89 (comment) (which builds with 1.14 but not 1.15)

[UlyssesZh]

Crystal 1.16 now has Crystal::EventLoop.current.wait_readable, and AHK_X11 is working with Crystal 1.16 and is no longer a block for dropping Crystal 1.14.