Backport zhaofengli/attic#246 to work around a hyper connection pool
race condition that causes spurious "connection closed before message
completed" errors during cache uploads in CI.
Music assistant has custom modifications they made to librespot that they haven't bothered to even try to upstream.
Thus, they require a custom librespot. I tried and tried and tried and tried to just override the one already in nixpkgs
but I had trouble doing so despite copying the pattern already shown in nixpkgs for overriding the src of a cargo pkg
(See mopidy) but it just didn't work... Oh well. So I just patch nixpkgs instead with the new source. It works I guess.
This is about where I gave up...
```nix
nixpkgs.overlays = [
(final: prev: {
# Cannot use librespot upstream because music-assistant requires custom changes
# that they never bothered to even try to uptream
librespot = prev.librespot.overrideAttrs (oldAttrs: rec {
src = prev.fetchFromGitHub {
owner = "music-assistant";
repo = "librespot";
rev = "786cc46199e583f304a84c786acb0a9b37bc3fbd";
sha256 = "sha256-xaOrqC8yCjF23Tz31RD3CzqZ3xxrDM6ncW1yoovEaGQ=";
};
cargoDeps = oldAttrs.cargoDeps.overrideAttrs (oldAttrs': {
vendorStaging = oldAttrs'.vendorStaging.overrideAttrs {
outputHash = "sha256-SqvJSHkyd1IicT6c4pE96dBJNNodULhpyG14HRGVWCk=";
};
});
});
})
];
```
