$ sudo port mpkg iperf3
Password:
--->  Computing dependencies for iperf3
--->  Fetching archive for iperf3
--->  Attempting to fetch iperf3-3.9_0.darwin_20.x86_64.tbz2 from https://ywg.ca.packages.macports.org/mirror/macports/packages/iperf3
--->  Attempting to fetch iperf3-3.9_0.darwin_20.x86_64.tbz2.rmd160 from https://ywg.ca.packages.macports.org/mirror/macports/packages/iperf3
--->  Creating pkg for iperf3 version 0_3.9_0 at /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_net_iperf3/iperf3/work/iperf3-3.9.pkg
Error: Failed to pkg iperf3: command execution failed
Error: See /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_net_iperf3/iperf3/main.log for details.
Error: Follow https://guide.macports.org/#project.tickets to report a bug.
Error: Processing of port iperf3 failed

$ sudo mkdir /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_net_iperf3/iperf3/work/destroot

$ sudo port mpkg iperf3
--->  Computing dependencies for iperf3
--->  Creating pkg for iperf3 version 0_3.9_0 at /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_net_iperf3/iperf3/work/iperf3-3.9.pkg
--->  Computing dependencies for openssl
--->  Fetching archive for openssl
--->  Attempting to fetch openssl-1.1.1j_0.darwin_20.x86_64.tbz2 from https://ywg.ca.packages.macports.org/mirror/macports/packages/openssl
--->  Attempting to fetch openssl-1.1.1j_0.darwin_20.x86_64.tbz2.rmd160 from https://ywg.ca.packages.macports.org/mirror/macports/packages/openssl
--->  Creating pkg for openssl version 1_1.1.1j_0 at /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_net_iperf3/iperf3/work/mpkg_packages/openssl-1.1.1j.pkg
Error: Failed to pkg openssl: command execution failed
Error: See /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_devel_openssl/openssl/main.log for details.
Error: Failed to mpkg iperf3: Processing of port openssl failed
Error: See /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_net_iperf3/iperf3/main.log for details.
Error: Follow https://guide.macports.org/#project.tickets to report a bug.
Error: Processing of port iperf3 failed

$ sudo mkdir /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_devel_openssl/openssl/work/destroot

$ sudo port mpkg iperf3
--->  Computing dependencies for iperf3
--->  Creating pkg for iperf3 version 0_3.9_0 at /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_net_iperf3/iperf3/work/iperf3-3.9.pkg
--->  Package for iperf3 version 0_3.9_0 at /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_net_iperf3/iperf3/work/iperf3-3.9.pkg is up-to-date
--->  Computing dependencies for openssl
--->  Creating pkg for openssl version 1_1.1.1j_0 at /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_net_iperf3/iperf3/work/mpkg_packages/openssl-1.1.1j.pkg
--->  Fetching archive for zlib
--->  Attempting to fetch zlib-1.2.11_0.darwin_20.x86_64.tbz2 from https://ywg.ca.packages.macports.org/mirror/macports/packages/zlib
--->  Attempting to fetch zlib-1.2.11_0.darwin_20.x86_64.tbz2.rmd160 from https://ywg.ca.packages.macports.org/mirror/macports/packages/zlib
--->  Creating pkg for zlib version 0_1.2.11_0 at /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_net_iperf3/iperf3/work/mpkg_packages/zlib-1.2.11.pkg
Error: Failed to pkg zlib: command execution failed
Error: See /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_archivers_zlib/zlib/main.log for details.
Error: Failed to mpkg iperf3: Processing of port zlib failed
Error: See /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_net_iperf3/iperf3/main.log for details.
Error: Follow https://guide.macports.org/#project.tickets to report a bug.
Error: Processing of port iperf3 failed

$ sudo mkdir /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_archivers_zlib/zlib/work/destroot

$ sudo port mpkg iperf3
--->  Computing dependencies for iperf3
--->  Creating pkg for iperf3 version 0_3.9_0 at /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_net_iperf3/iperf3/work/iperf3-3.9.pkg
--->  Package for iperf3 version 0_3.9_0 at /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_net_iperf3/iperf3/work/iperf3-3.9.pkg is up-to-date
--->  Computing dependencies for openssl
--->  Creating pkg for openssl version 1_1.1.1j_0 at /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_net_iperf3/iperf3/work/mpkg_packages/openssl-1.1.1j.pkg
--->  Package for openssl version 1_1.1.1j_0 at /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_net_iperf3/iperf3/work/mpkg_packages/openssl-1.1.1j.pkg is up-to-date
--->  Creating pkg for zlib version 0_1.2.11_0 at /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_net_iperf3/iperf3/work/mpkg_packages/zlib-1.2.11.pkg