cargo: HTTP 206 response when downloading the standback 0.2.10 dependency causes cargo to abort

Problem

After running cargo update, a new version of standback (0.2.10) got introduced. When cargo tries to fetch it, it receives an unexpected HTTP status.

➜  gitoxide git:(main) ✗ cargo check
error: failed to download from `https://crates.io/api/v1/crates/standback/0.2.10/download`

Caused by:
  failed to get 200 response from `https://static.crates.io/crates/standback/standback-0.2.10.crate`, got 206

The issue would happen repeatedly and I was unable to run any cargo command I was interested in.

The download should succeed.

Steps

cargo new dl-test
cd dl-test
cargo add standback
cargo check

Possible Solution(s)

Luckily I download each and every crate using criner, so I could fix it by copying the downloaded crate into the cargo cache:

cp ~/dev/the-lean-crate/criner/criner.db/assets/st/an/standback/0.2.10-download:1.0.0.crate  cache/github.com-1ecc6299db9ec823/standback-0.2.10.crate

This prevented cargo from trying to download anything.

Notes

Output of cargo version:

cargo 1.45.1 (f242df6ed 2020-07-22)

running on MacOS 11 Beta 7 (20A5354i).

This is the very first time I see this issue. The issue does not occour on CI.