Release 3.6.4 (2025-06-12)

What's Changed

When remote building with --keep-failed, only show "you can rerun" message if the derivation's platform is supported on this machine by @cole-h in DeterminateSystems/nix-src#87
Indicate that sandbox-paths specifies a missing file in the corresponding error message. by @cole-h in DeterminateSystems/nix-src#88
Render lazy tree paths in messages withouth the/nix/store/hash... prefix in substituted source trees by @edolstra in DeterminateSystems/nix-src#91
Use FlakeHub inputs by @lucperkins in DeterminateSystems/nix-src#89
Proactively cache more flake inputs and fetches by @edolstra in DeterminateSystems/nix-src#93
Fix: register extra builtins just once by @edolstra in DeterminateSystems/nix-src#97
Fix the link to builders-use-substitutes documentation for builders by @lucperkins in DeterminateSystems/nix-src#102
Improve error messages that use the hypothetical future tense of "will" by @lucperkins in DeterminateSystems/nix-src#92
Make the nix repl test more stable by @edolstra in DeterminateSystems/nix-src#103
Run nixpkgsLibTests against lazy trees by @edolstra in DeterminateSystems/nix-src#100
Run the Nix test suite against lazy trees by @edolstra in DeterminateSystems/nix-src#105
Improve caching of inputs in dry-run mode by @edolstra in DeterminateSystems/nix-src#98

Full Changelog: v3.6.2...v3.6.4