Hi @kc_2466,
Thanks for submitting this to us. It looks like there is an issue with packages with 3 or less characters that may fail to download. I created ticket, PG-2886, which will release this Friday (February 3rd, 2025), that will contain the fix for this.
I also want to note that version 2.8.0 of syn does not exist on crates.io, so I verified using syn 2.0.8.
Thanks,
Rich