--2020-09-23 11:45:53--  https://download.sourceforge.net/libpng/libpng-1.2.59.tar.xz
Resolving download.sourceforge.net... 216.105.38.13
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2020-09-23 11:45:53 ERROR 429: Too Many Requests.

libpng-1.2.59.tar.xz has bad BLAKE2B digest: expected a64a8e5c914a20b1f16a219b508b06d12ff28903083792cf07dae841ad13b3636b9d715d9bbfc459a134dfdf2a9b37bac1fbcff14a91c214340325ba8266431e, got 786a02f742015903c6c6fd852552d272912f4740e15847618a86e217f71f5419d25e1031afee585313896444934eb04b903a685b1448b755d56f701afe9be2ce