test: reveal wpt evaluation errors in status files #2329

Job	Run time
Build slim tarball	1m 46s
aarch64-darwin: with shared libraries	2h 25m 12s
x86_64-linux: with shared libraries	27m 57s
x86_64-darwin: with shared libraries	50m 59s
aarch64-linux: with shared libraries	23m 21s
	4h 9m 15s

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