cat /tmp/test.file | rclone rcat aws:/test.file  -vv --dump=headers
<7>DEBUG : rclone: Version "v1.59.2" starting with parameters ["rclone" "rcat" "aws:/test.file" "-vv" "--dump=headers"]
<7>DEBUG : rclone: systemd logging support activated
<7>DEBUG : Creating backend with remote "aws:/"
<7>DEBUG : Using config file from "/home/***/.config/rclone/rclone.conf"
<7>DEBUG : You have specified to dump information. Please be noted that the Accept-Encoding as shown may not be correct in the request and the response may not show Content-Encoding if the go standard libraries auto gzip encoding was in effect. In this case the body of the request will be gunzipped before showing it.
<7>DEBUG : You have specified to dump information. Please be noted that the Accept-Encoding as shown may not be correct in the request and the response may not show Content-Encoding if the go standard libraries auto gzip encoding was in effect. In this case the body of the request will be gunzipped before showing it.
<7>DEBUG : fs cache: renaming cache item "aws:/" to be canonical "aws:"
<7>DEBUG : >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
<7>DEBUG : HTTP REQUEST (req 0xc000259700)
<7>DEBUG : PUT /bucket1/test.file HTTP/1.1
Host: ***:9000
User-Agent: rclone/v1.59.2
Content-Length: 0
Authorization: XXXX
X-Amz-Acl: private
X-Amz-Content-Sha256: e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
X-Amz-Date: 20220930T153251Z
Accept-Encoding: gzip

<7>DEBUG : >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
<7>DEBUG : <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
<7>DEBUG : HTTP RESPONSE (req 0xc000259700)
<7>DEBUG : HTTP/1.1 200 OK
Content-Length: 0
Accept-Ranges: bytes
Content-Security-Policy: block-all-mixed-content
Date: Fri, 30 Sep 2022 15:32:52 GMT
Etag: "d41d8cd98f00b204e9800998ecf8427e"
Server: MinIO
Strict-Transport-Security: max-age=31536000; includeSubDomains
Vary: Origin
Vary: Accept-Encoding
X-Amz-Request-Id: 1719AD330B043E1D
X-Content-Type-Options: nosniff
X-Xss-Protection: 1; mode=block

<7>DEBUG : <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
<6>INFO  : S3 root: Bucket "test.file" created with ACL "private"
<5>NOTICE: S3 root: Streaming uploads using chunk size 5Mi will have maximum file size of 48.828Gi
<3>ERROR : test.file: Post request rcat error: multipart upload failed to initialise: InvalidParameter: 1 validation error(s) found.
- minimum field size of 1, CreateMultipartUploadInput.Key.
<7>DEBUG : 6 go routines active
Failed to rcat with 2 errors: last error was: multipart upload failed to initialise: InvalidParameter: 1 validation error(s) found.
- minimum field size of 1, CreateMultipartUploadInput.Key.