Fix: must take Errno.value within Fiber.syscall(&) [fixup #15871]#16679
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straight-shoota merged 1 commit intocrystal-lang:masterfrom Feb 26, 2026
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We must access
Errno.valuewithin theFiber.syscall(&)block, not after the block returned because there can be a context switch before the method returns, anderrnois no longer valid.Fixup #15871.