I'm guessing it was always here, we haven't had a change to test static linkage on Linux yet (on macOS I believe there's a bug in rustc where it doesn't tell you when there's duplicate symbols).
Bug 1561953 Comment 2 Edit History
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I'm guessing it was always here, we haven't had a chance to test static linkage on Linux yet (on macOS I believe there's a bug in rustc where it doesn't tell you when there's duplicate symbols).