Cannot build: "attempted ssh-agent authentication, but no usernames succeeded: git"

[vitaly-zdanevich]

Full log:

$ cargo build --all --release
    Updating crates.io index
error: Unable to update registry `crates-io`

Caused by:
  failed to fetch `https://github.com/rust-lang/crates.io-index`

Caused by:
  failed to authenticate when downloading repository: git@github.com:rust-lang/crates.io-index

  * attempted ssh-agent authentication, but no usernames succeeded: `git`

  if the git CLI succeeds then `net.git-fetch-with-cli` may help here
  https://doc.rust-lang.org/cargo/reference/config.html#netgit-fetch-with-cli

Caused by:
  error authenticating: no auth sock variable; class=Ssh (23)