ninja: build stopped: subcommand failed.
 * ERROR: media-libs/mesa-20.1.3::gentoo failed (compile phase):
 *   ninja -v -j16 -l0 -C /var/calculate/tmp/portage/media-libs/mesa-20.1.3/work/mesa-20.1.3-abi_x86_64.amd64 failed
 * 
 * Call stack:
 *     ebuild.sh, line  125:  Called src_compile
 *   environment, line 4265:  Called multilib-minimal_src_compile
 *   environment, line 2859:  Called multilib_foreach_abi 'multilib-minimal_abi_src_compile'
 *   environment, line 3109:  Called multibuild_foreach_variant '_multilib_multibuild_wrapper' 'multilib-minimal_abi_src_compile'
 *   environment, line 2794:  Called _multibuild_run '_multilib_multibuild_wrapper' 'multilib-minimal_abi_src_compile'
 *   environment, line 2792:  Called _multilib_multibuild_wrapper 'multilib-minimal_abi_src_compile'
 *   environment, line  961:  Called multilib-minimal_abi_src_compile
 *   environment, line 2853:  Called multilib_src_compile
 *   environment, line 3329:  Called meson_src_compile
 *   environment, line 2681:  Called eninja '-C' '/var/calculate/tmp/portage/media-libs/mesa-20.1.3/work/mesa-20.1.3-abi_x86_64.amd64'
 *   environment, line 1821:  Called die
 * The specific snippet of code:
 *       "$@" || die "${nonfatal_args[@]}" "${*} failed"
 * 
 * If you need support, post the output of `emerge --info '=media-libs/mesa-20.1.3::gentoo'`,
 * the complete build log and the output of `emerge -pqv '=media-libs/mesa-20.1.3::gentoo'`.
 * The complete build log is located at '/var/calculate/tmp/portage/media-libs/mesa-20.1.3/temp/build.log'.
 * The ebuild environment file is located at '/var/calculate/tmp/portage/media-libs/mesa-20.1.3/temp/environment'.
 * Working directory: '/var/calculate/tmp/portage/media-libs/mesa-20.1.3/work/mesa-20.1.3-abi_x86_64.amd64'