diagnostics_channel: specialized tracing channels #5185

Job	Run time
Build slim tarball	2m 0s
aarch64-darwin: with shared libraries	21m 44s
aarch64-linux: with shared libraries	18m 29s
x86_64-darwin: with shared libraries	30m 21s
x86_64-linux: with shared libraries	21m 43s
	1h 34m 17s

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