>>> Emerging (1 of 5) app-crypt/mit-krb5-1.15.1-r1::security-kit
 * Fetching files in the background.
 * To view fetch progress, run in another terminal:
 * tail -f /var/log/emerge-fetch.log
>>> Downloading 'http://distfiles.gentoo.org/distfiles/krb5-1.15.1.tar.gz'
--2017-12-18 22:03:35--  http://distfiles.gentoo.org/distfiles/krb5-1.15.1.tar.gz
Resolving distfiles.gentoo.org... 2a00:8a60:e012:a00::21, 2600:3404:200:237::2, 2600:3402:200:227::2, ...
Connecting to distfiles.gentoo.org|2a00:8a60:e012:a00::21|:80... connected.
HTTP request sent, awaiting response... 404 Not Found
2017-12-18 22:03:35 ERROR 404: Not Found.

>>> Downloading 'http://web.mit.edu/kerberos/dist/krb5/1.15/krb5-1.15.1.tar.gz'
--2017-12-18 22:03:35--  http://web.mit.edu/kerberos/dist/krb5/1.15/krb5-1.15.1.tar.gz
Resolving web.mit.edu... 2a02:26f0:e4:283::255e, 2a02:26f0:e4:286::255e, 104.81.100.221
Connecting to web.mit.edu|2a02:26f0:e4:283::255e|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 9375538 (8.9M) [application/x-tar]
Saving to: ‘/var/cache/portage/distfiles/krb5-1.15.1.tar.gz’

/var/cache/portage/ 100%[===================>]   8.94M   977KB/s    in 10s

2017-12-18 22:03:46 (881 KB/s) - ‘/var/cache/portage/distfiles/krb5-1.15.1.tar.gz’ saved [45998080]

!!! Fetched file: krb5-1.15.1.tar.gz VERIFY FAILED!
!!! Reason: Filesize does not match recorded size
!!! Got:      45998080
!!! Expected: 9375538
Refetching... File renamed to '/var/cache/portage/distfiles/krb5-1.15.1.tar.gz._checksum_failure_.eav02oev'

!!! Couldn't download 'krb5-1.15.1.tar.gz'. Aborting.
 * Fetch failed for 'app-crypt/mit-krb5-1.15.1-r1', Log file:
 *  '/var/tmp/portage/app-crypt/mit-krb5-1.15.1-r1/temp/build.log'

>>> Failed to emerge app-crypt/mit-krb5-1.15.1-r1, Log file:

>>>  '/var/tmp/portage/app-crypt/mit-krb5-1.15.1-r1/temp/build.log'

 * Messages for package app-crypt/mit-krb5-1.15.1-r1:

 * Fetch failed for 'app-crypt/mit-krb5-1.15.1-r1', Log file:
 *  '/var/tmp/portage/app-crypt/mit-krb5-1.15.1-r1/temp/build.log'