build

return istream error while reading hvcC #1468

Job	Run time
build (nothing)	50s
build (tarball, 1, 1, 1, 1, 1)	1m 15s
build (graphics, 1)	59s
build (x265, 1)	1m 5s
build (x265 / graphics, 1, 1)	57s
build (libde265 (1) / graphics, 1, 1)	1m 12s
build (libde265 (2) / graphics, 1, 2)	3m 47s
build (libde265 (1) / x265 / graphics, 1, 1, 1)	1m 36s
build (libde265 (2) / x265 / graphics, 1, 1, 2)	3m 48s
build (libde265 (1) / x265 / aom / graphics, 1, 1, 1, 1)	1m 26s
build (libde265 (1) / x265 / dav1d / graphics, 1, 1, 1, 1)	2m 43s
build (libde265 (1) / x265 / aom / rav1e / graphics, 1, 1, 1, 1, 1)	20m 24s
	40m 2s

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