Debian is using a severely outdated version of rclone and has recently removed rclone from testing. This is due to issues with dependencies that block new releases of rclone. However the related issues look like it could be addressed easily by using the required build flags that skip the currently outdated dependencies. If such flags exist, I can't find them however. Since rclone may be removed from future Debian releases if the package is not fixed in testing, I am hoping that someone with better knowledge of the rclone code may be willing to help out with the issue so we may keep the package in mainstream distributions.
That is horrible advise.
As much as I agree with the general issue of stable distro packages being outdated with the risk of missing security patches, installing software manually like that basically guarantees it wont be updated by most users.