INFO: setup
Package:    sys-process/daemontools-0.76-r12:0
Repository: gentoo
USE:        abi_x86_64 amd64 elibc_glibc kernel_linux
FEATURES:   preserve-libs sandbox userpriv usersandbox
INFO: prepare
Applying 0.76-errno.patch ...
Applying 0.76-C99-decls.patch ...
Applying 0.76-makefile.patch ...
Applying 0.76-implicit-func-decl-clang16.patch ...
Applying 0.76-const-typecasts-C99.patch ...
INFO: install
Final size of build directory: 2036 KiB (1.9 MiB)
Final size of installed tree:   536 KiB
INFO: postinst

You can run daemontools using the svscan init.d script,
or you could run it through inittab.
To use inittab, emerge supervise-scripts and run:
svscan-add-to-inittab
Then you can hup init with the command telinit q

QA: other
QA Notice: The ebuild is installing to one or more unexpected directories:

  /service

Please fix the ebuild to use correct FHS/Gentoo policy paths.