Pass through HTTP 429 to the nix daemon #35
Merged
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Although the README / #17 documents that 429 is known to cause a substitution error, I've not found any reason why this error can't be passed through to the nix-daemon so it will attempt to retry the substitution after a delay rather than completely disabling the cache.
The nix daemon even has specific behavior for this case: https://github.com/NixOS/nix/blob/df9bd755a115ecdcdf6566c39167aad3d1b08da2/src/libstore/filetransfer.cc#L415