ANSI escaping in certain situations

[MrFoxPro]

Weird Nix output I met today.
Probably I created issue in wrong place, but I described it in details here:
ipetkov/crane#337 (comment)

I'll repeat briefly.
Using mkScript inside craneLib.buildPackage results in incorrect ANSI ouput.

However, pkgs.nuenv.mkDerivation and pkgs.stdenv.mkDerivation both correctly produce output from Nushell scripts with original Nix:

Any ideas?

[MrFoxPro]

I also checked in buildRustPackage, output is incorrect also.

[MrFoxPro]

Well, seems like it's Nix fault: NixOS/nix#3100 (comment)