"port upgrade outdated" ffmpeg build fails

[FabulousPhil]

The tail of the log it says:

:info:destroot mkdir -p "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_multimedia_ffmpeg/ffmpeg/work/destroot/opt/local/include/libavcodec"
:info:destroot install -m 644 libavcodec/ac3_parser.h libavcodec/adts_parser.h libavcodec/avcodec.h libavcodec/avdct.h libavcodec/avfft.h libavcodec/d3d11va.h libavcodec/dirac.h libavcodec/dv_profile.h libavcodec/dxva2.h libavcodec/jni.h libavcodec/mediacodec.h libavcodec/qsv.h libavcodec/vaapi.h libavcodec/vdpau.h libavcodec/version.h libavcodec/videotoolbox.h libavcodec/vorbis_parser.h libavcodec/xvmc.h "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_multimedia_ffmpeg/ffmpeg/work/destroot/opt/local/include/libavcodec"
:info:destroot /bin/sh: /usr/bin/install: Permission denied
:info:destroot gmake: *** [ffbuild/library.mak:103: install-libavcodec-headers] Error 126
:info:destroot gmake: Leaving directory '/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_multimedia_ffmpeg/ffmpeg/work/ffmpeg-4.1.3'
:info:destroot Command failed:  cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_multimedia_ffmpeg/ffmpeg/work/ffmpeg-4.1.3" && /opt/local/bin/gmake -w install DESTDIR=/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_multimedia_ffmpeg/ffmpeg/work/destroot 
:info:destroot Exit code: 2
:error:destroot Failed to destroot ffmpeg: command execution failed
:debug:destroot Error code: CHILDSTATUS 47311 2
:debug:destroot Backtrace: command execution failed
:debug:destroot     while executing
:debug:destroot "system {*}$notty {*}$nice $fullcmdstring"
:debug:destroot     invoked from within
:debug:destroot "command_exec destroot"
:debug:destroot     (procedure "portdestroot::destroot_main" line 2)
:debug:destroot     invoked from within
:debug:destroot "$procedure $targetname"
:error:destroot See /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_multimedia_ffmpeg/ffmpeg/main.log for details.

[mf2k (Frank Schima)]

In the future, please use WikiFormatting and add the port maintainer(s) to Cc (port info --maintainers ffmpeg), if any.

[jmroot (Joshua Root)]

Please attach the log.

[jmroot (Joshua Root)]

Reopen this if the current version still doesn't work and you can attach a full log.