Calibre emerge error

Incompatible processor. This Qt build requires the following features:
    aes
Aborted. Incompatible processor: missing feature 0x2000000 - aes.
/var/tmp/portage/app-text/calibre-3.26.1/temp/environment: line 3490: 10567 Aborted                 PATH=${T}:${PATH} PYTHONPATH=${S}/src${PYTHONPATH:+:}${PYTHONPATH} "${PYTHON}" setup.py install --root="${D}" --prefix="${EPREFIX}/usr" --libdir="${EPREFIX}/usr/${libdir}" --staging-root="${ED}usr" --staging-libdir="${ED}usr/${libdir}"
 * ERROR: app-text/calibre-3.26.1::gentoo failed (install phase):
 *   (no error message)
 *
 * Call stack:
 *     ebuild.sh, line 124:  Called src_install
 *   environment, line 3516:  Called die
 * The specific snippet of code:
 *       PATH=${T}:${PATH} PYTHONPATH=${S}/src${PYTHONPATH:+:}${PYTHONPATH} "${PYTHON}" setup.py install --root="${D}" --prefix="${EPREFIX}/usr" --libdir="${EPREFIX}/usr/${libdir}" --staging-root="${ED}usr" --staging-libdir="${ED}usr/${libdir}" || die;
 *
 * If you need support, post the output of `emerge --info '=app-text/calibre-3.26.1::gentoo'`,
 * the complete build log and the output of `emerge -pqv '=app-text/calibre-3.26.1::gentoo'`.
 * The complete build log is located at '/var/tmp/portage/app-text/calibre-3.26.1/temp/build.log'.
 * The ebuild environment file is located at '/var/tmp/portage/app-text/calibre-3.26.1/temp/environment'.
 * Working directory: '/var/tmp/portage/app-text/calibre-3.26.1/work/calibre-3.26.1'
 * S: '/var/tmp/portage/app-text/calibre-3.26.1/work/calibre-3.26.1'

>>> Failed to emerge app-text/calibre-3.26.1, Log file:

>>>  '/var/tmp/portage/app-text/calibre-3.26.1/temp/build.log'

 * Messages for package app-text/calibre-3.26.1:

 * ERROR: app-text/calibre-3.26.1::gentoo failed (install phase):
 *   (no error message)
 *
 * Call stack:
 *     ebuild.sh, line 124:  Called src_install
 *   environment, line 3516:  Called die
 * The specific snippet of code:
 *       PATH=${T}:${PATH} PYTHONPATH=${S}/src${PYTHONPATH:+:}${PYTHONPATH} "${PYTHON}" setup.py install --root="${D}" --prefix="${EPREFIX}/usr" --libdir="${EPREFIX}/usr/${libdir}" --staging-root="${ED}usr" --staging-libdir="${ED}usr/${libdir}" || die;
 *
 * If you need support, post the output of `emerge --info '=app-text/calibre-3.26.1::gentoo'`,
 * the complete build log and the output of `emerge -pqv '=app-text/calibre-3.26.1::gentoo'`.
 * The complete build log is located at '/var/tmp/portage/app-text/calibre-3.26.1/temp/build.log'.
 * The ebuild environment file is located at '/var/tmp/portage/app-text/calibre-3.26.1/temp/environment'.
 * Working directory: '/var/tmp/portage/app-text/calibre-3.26.1/work/calibre-3.26.1'
 * S: '/var/tmp/portage/app-text/calibre-3.26.1/work/calibre-3.26.1'