Dep: adapt rust stable-1.63 and nightly 2022-08-11

[drmingdrmer]

• std::backtrace is stabilized in stable-1.63;
• std::Error::backtrace() is replaced with provider style API in
  nightly.

Since std::Error API now is different in stable and nightly, it's not
possible any more to use --feature bt with stable toolchain.

Checklist

• Updated guide with pertinent info (may not always apply).
• Squash down commits to one or two logical commits which clearly describe the work you've done.
• Unittest is a friend:)

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