• built on NixOS
• Warning: no invocation of /nix/store/jw54aj1ivrmk20n84gkd3mskyhabh4dy-libheif-1.4.0/bin/heif-convert had a zero exit code or showed the expected version
• /nix/store/jw54aj1ivrmk20n84gkd3mskyhabh4dy-libheif-1.4.0/bin/heif-enc passed the binary check.
• /nix/store/jw54aj1ivrmk20n84gkd3mskyhabh4dy-libheif-1.4.0/bin/heif-info passed the binary check.
• Warning: no invocation of /nix/store/jw54aj1ivrmk20n84gkd3mskyhabh4dy-libheif-1.4.0/bin/heif-thumbnailer had a zero exit code or showed the expected version
• 2 of 4 passed binary check by having a zero exit code.
• 0 of 4 passed binary check by having the new version present in output.
• found 1.4.0 with grep in /nix/store/jw54aj1ivrmk20n84gkd3mskyhabh4dy-libheif-1.4.0
• directory tree listing: https://gist.github.com/ecfb9e865fea0bd6ac9b79bd639f9be6
• du listing: https://gist.github.com/0c1f07bcb443a2488ac8adb6ba71bdfc

516 total rebuild path(s)

173 package rebuild(s)

173 x86_64-linux rebuild(s)
144 i686-linux rebuild(s)
60 x86_64-darwin rebuild(s)
139 aarch64-linux rebuild(s)

First fifty rebuilds by attrpath
abiword
adapta-gtk-theme
arc-theme
arx-libertatis
asc-key-to-qr-code-gif
asciidoc-full
asciidoc-full-with-plugins
asymptote
autotrace
awesome
awesome-4-0
beets
betterlockscreen
bibata-cursors
blockhash
bombono
brasero
brasero-original
btrbk
calibre
calligra
capitaine-cursors
cataract
cataract-unstable
cuneiform
dblatexFull
denemo
devede
disorderfs
dmtx-utils
docbook2odf
dvd-slideshow
dvdauthor
dvdbackup
dvdstyler
electrum
emojione
far2l
fast-neural-doodle
fbida
fgallery
fim
fmbt
frescobaldi
geeqie
gimp
gimp-with-plugins
gimpPlugins.exposureBlend
gimpPlugins.focusblur
gimpPlugins.fourier

Either download from Cachix:

nix-store -r /nix/store/jw54aj1ivrmk20n84gkd3mskyhabh4dy-libheif-1.4.0 \
  --option binary-caches 'https://cache.nixos.org/ https://r-ryantm.cachix.org/' \
  --option trusted-public-keys '
  r-ryantm.cachix.org-1:gkUbLkouDAyvBdpBX0JOdIiD2/DP1ldF3Z3Y6Gqcc4c=
  cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY=
  '

(r-ryantm's Cachix cache is only trusted for this store-path realization.)

Or, build yourself:

nix-build -A libheif https://github.com/r-ryantm/nixpkgs/archive/0ca4bc68fba8657fc8cf923b86cdacbcb1ddb0e9.tar.gz

After you've downloaded or built it, look at the files and if there are any, run the binaries:

ls -la /nix/store/jw54aj1ivrmk20n84gkd3mskyhabh4dy-libheif-1.4.0
ls -la /nix/store/jw54aj1ivrmk20n84gkd3mskyhabh4dy-libheif-1.4.0/bin