Automated daily update to rustc (to nightly-2026-01-31) #611

Job	Run time
Check WASM	35s
Test - stable toolchain	3m 10s
Prepare	4s
Docs - stable toolchain (recent)	35s
Test - nightly toolchain	2m 47s
Docs - nightly toolchain (recent)	34s
Lint - nightly toolchain (recent)	42s
Test - MSRV	7m 0s
	15m 27s

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