Automated update to rustc nightly-2026-05-14 #689

Job	Run time
Check WASM	29s
Docs - nightly toolchain	1m 34s
Test 32-bit version	36s
Docs - stable toolchain	1m 33s
Cross test	1m 49s
Bench - nightly toolchain	1m 56s
Test - stable toolchain (recent)	6m 20s
Lint - nightly toolchain	2m 2s
Test - msrv toolchain (recent)	1m 29s
Test - nightly toolchain (recent)	6m 34s
	24m 22s

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