Build fail with dns/dnspod imported

My build command
```
docker build --build-arg plugins="cache,filter,nobots,ratelimit,realip,dns,dnspod" github.com/abiosoft/caddy-docker.git
```
Error output
```
go: finding golang.org/x/time/rate latest
go: finding github.com/pquerna/cachecontrol latest
go: downloading github.com/pquerna/cachecontrol v0.0.0-20180517163645-1555304b9b35
go: extracting github.com/pquerna/cachecontrol v0.0.0-20180517163645-1555304b9b35
go: finding golang.org/x/time latest
go: downloading golang.org/x/time v0.0.0-20190308202827-9d24e82272b4
go: extracting golang.org/x/time v0.0.0-20190308202827-9d24e82272b4
# github.com/go-acme/lego/providers/dns/dnspod
/go/pkg/mod/github.com/go-acme/lego@v2.5.0+incompatible/providers/dns/dnspod/dnspod.go:140:19: cannot convert 0 (type untyped number) to type "encoding/json".Number
/go/pkg/mod/github.com/go-acme/lego@v2.5.0+incompatible/providers/dns/dnspod/dnspod.go:140:19: invalid operation: hostedZone.ID == 0 (mismatched types "encoding/json".Number and int)
error at 'building caddy'
```