depinfo format version #68
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weihanglo
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We're going to add the magic marker in the next commit. The v0 test is to ensure that we don't change anything unexpected.
weihanglo
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Encodes the version information into Cargo's fingerprint dep-info files, so that when the format encoding changes in the future, Cargo understands a dep-info file was outdated and doesn't bother parsing it. Since there was no version info encoded in the old format (call it v0), to be compatible with older cargoes, this PR works around it with a horrible hack. It is explained in the doc comment of `EncodedDepInfo`.
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