These are the packages that would be merged, in order:

Calculating dependencies ... done!
Dependency resolution took 1.06 s (backtrack: 0/20).

[ebuild  N     ] dev-libs/libfastjson-1.2609.0:0/4.3.0::gentoo  USE="-static-libs" 132 KiB
[ebuild  N     ] dev-libs/libestr-0.1.11-r1::gentoo  USE="-debug -static-libs -test" 348 KiB
[ebuild  N     ] app-admin/rsyslog-8.2604.0-r1::gentoo  USE="gcrypt openssl ssl uuid -clickhouse -curl -dbi -debug -doc -elasticsearch -gnutls -imdocker -imhttp -impcap -kafka -kerberos -kubernetes -mdblookup -mongodb -mysql -normalize -omhttp -omhttpfs -omudpspoof -postgres -rabbitmq -redis -relp -rfc3195 -rfc5424hmac -snmp (-systemd) -test -usertools -xxhash -zeromq" 12563 KiB

Total: 3 packages (3 new), Size of downloads: 13042 KiB