rust: bump minimum Rust and bindgen versions

[blktests-ci]

Pull request for series with
subject: rust: bump minimum Rust and bindgen versions
version: 2
url: https://patchwork.kernel.org/project/linux-block/list/?series=1077519

[blktests-ci]

Upstream branch: 15c4162
series: https://patchwork.kernel.org/project/linux-block/list/?series=1077519
version: 2

Pull request is NOT updated. Failed to apply https://patchwork.kernel.org/project/linux-block/list/?series=1077519
error message:

Cmd('git') failed due to: exit code(128)
  cmdline: git am --3way
  stdout: 'Applying: rust: kbuild: remove `--remap-path-prefix` workarounds
Patch failed at 0001 rust: kbuild: remove `--remap-path-prefix` workarounds'
  stderr: 'error: sha1 information is lacking or useless (rust/Makefile).
error: could not build fake ancestor
hint: Use 'git am --show-current-patch=diff' to see the failed patch
hint: When you have resolved this problem, run "git am --continue".
hint: If you prefer to skip this patch, run "git am --skip" instead.
hint: To restore the original branch and stop patching, run "git am --abort".
hint: Disable this message with "git config set advice.mergeConflict false"'

conflict: