Shards - Can not generate different endpoint

[solracsf]

Using something like:

juicefs format \
  --storage s3 \
  --shards 8 \
  --bucket shard%d \
  --bucket https://s3.nl-ams.scw.cloud \
  --access-key xxxxxxxxxxxxx \
  --secret-key xxxxxxxxxxx \
  "mysql://juicefs:juicefs@(127.0.0.1:3306)/juicefs" \
  juicefs

I was expecting to have buckets like

https://shard1.s3.nl-ams.scw.cloud
https://shard1.s3.nl-ams.scw.cloud
https://shard3.s3.nl-ams.scw.cloud
...

I got:

<FATAL>: object storage: can not generate different endpoint using https://s3.nl-ams.scw.cloud [format.go:377]

What's going wrong here?

[solracsf]

Nevermind, I just saw my error after read my post...

Correct format is --bucket https://jfs-shard%d.nl-ams.scw.cloud