crawler.go: panic: unexpected end of JSON input

[Marek Küthe]

$sudo go run crawler.go
[some json]
panic: unexpected end of JSON input

goroutine 720 [running]:
main.doRequest(0x5022e0)
	/home/bandura/Downloads/crawler.go:57 +0x1bb
main.getPeers(...)
	/home/bandura/Downloads/crawler.go:79
main.doRumor.func1()
	/home/bandura/Downloads/crawler.go:126 +0x772
created by main.doRumor
	/home/bandura/Downloads/crawler.go:93 +0x9d
exit status 2

$go version
go version go1.17.8 linux/amd64