Add Sctp protocol and MSG_NOTIFICATION (#2562) #1703

Job	Run time
macos	3m 12s
minver	14s
macos-aarch64	2m 27s
linux_native_builds (x86_64-unknown-linux-gnu)	2m 34s
linux_native_builds (x86_64-unknown-linux-musl)	2m 29s
rust_stable	1m 30s
rustfmt	7s
solaris (x86_64-pc-solaris)	3m 54s
tier3 (x86_64-unknown-dragonfly)	59s
tier3 (x86_64-unknown-openbsd)	59s
tier3 (x86_64-unknown-haiku)	1m 1s
tier3 (armv7-unknown-linux-uclibceabihf)	1m 9s
redox	38s
cross (arm-unknown-linux-gnueabi)	2m 12s
cross_compiling (aarch64-linux-android)	39s
cross (armv7-unknown-linux-gnueabihf)	1m 56s
cross_compiling (arm-linux-androideabi)	39s
cross (i686-unknown-linux-gnu)	1m 58s
cross (i686-unknown-linux-musl)	2m 3s
cross_compiling (armv7-linux-androideabi)	35s
cross_compiling (i686-linux-android)	41s
cross (mips-unknown-linux-gnu)	2m 6s
cross_compiling (x86_64-linux-android)	37s
cross (mips64-unknown-linux-gnuabi64)	1m 50s
cross (mips64el-unknown-linux-gnuabi64)	2m 4s
cross_compiling (arm-unknown-linux-musleabi)	41s
cross (mipsel-unknown-linux-gnu)	1m 57s
cross_compiling (x86_64-unknown-fuchsia)	32s
cross (powerpc64le-unknown-linux-gnu)	2m 2s
cross_compiling (x86_64-unknown-illumos)	29s
cross (loongarch64-unknown-linux-gnu)	1m 49s
cross_compiling (aarch64-apple-ios, true)	35s
cross_compiling (powerpc64-unknown-linux-gnu)	41s
cross_compiling (s390x-unknown-linux-gnu)	42s
cross_compiling (x86_64-unknown-linux-gnux32)	42s
cross_compiling (x86_64-unknown-netbsd)	32s
	49m 15s

Provide feedback