Merge remote-tracking branch 'origin/v3-rewrite' into v3-rewrite

# Conflicts:
#	core/src/field.rs
#	core/src/lib.rs
#	core/src/logger/interface.rs
#	core/src/logger/mod.rs
#	core/src/profiler/interface.rs
#	core/src/profiler/mod.rs
#	core/src/profiler/section.rs
#	core/src/trace/future.rs
#	core/src/trace/interface.rs
#	core/src/trace/span.rs