* Package:    dev-ml/parmap-1.2.1
 * Repository: gentoo
 * Maintainer: ml@gentoo.org
 * USE:        abi_x86_64 amd64 elibc_glibc kernel_linux ocamlopt userland_GNU
 * FEATURES:   network-sandbox preserve-libs sandbox splitdebug userpriv usersandbox

>>> Unpacking source...
>>> Unpacking parmap-1.2.1.tar.gz to /var/tmp/portage/dev-ml/parmap-1.2.1/work
>>> Source unpacked in /var/tmp/portage/dev-ml/parmap-1.2.1/work
>>> Preparing source in /var/tmp/portage/dev-ml/parmap-1.2.1/work/parmap-1.2.1 ...
>>> Source prepared.
>>> Configuring source in /var/tmp/portage/dev-ml/parmap-1.2.1/work/parmap-1.2.1 ...
>>> Source configured.
>>> Compiling source in /var/tmp/portage/dev-ml/parmap-1.2.1/work/parmap-1.2.1 ...
File "src/parmap.ml", line 105, characters 15-73:
105 | let redirect ?(path = (Printf.sprintf "/tmp/.parmap.%d" (Unix.getpid ()))) ~id =
                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Error (warning 16 [unerasable-optional-argument]): this optional argument cannot be erased.
 * ERROR: dev-ml/parmap-1.2.1::gentoo failed (compile phase):
 *   (no error message)
 * 
 * Call stack:
 *     ebuild.sh, line 127:  Called src_compile
 *   environment, line 509:  Called dune_src_compile
 *   environment, line 330:  Called die
 * The specific snippet of code:
 *       dune build @install || die
 * 
 * If you need support, post the output of `emerge --info '=dev-ml/parmap-1.2.1::gentoo'`,
 * the complete build log and the output of `emerge -pqv '=dev-ml/parmap-1.2.1::gentoo'`.
 * The complete build log is located at '/var/log/portage/dev-ml:parmap-1.2.1:20210608-075807.log'.
 * For convenience, a symlink to the build log is located at '/var/tmp/portage/dev-ml/parmap-1.2.1/temp/build.log'.
 * The ebuild environment file is located at '/var/tmp/portage/dev-ml/parmap-1.2.1/temp/environment'.
 * Working directory: '/var/tmp/portage/dev-ml/parmap-1.2.1/work/parmap-1.2.1'
 * S: '/var/tmp/portage/dev-ml/parmap-1.2.1/work/parmap-1.2.1'