Error: org.macports.fetch for port llvm-3.5 returned: Subversion check out failed

[qasdfgtyuiop@…]

When I try to install llvm-3.5, I got the following error message:

--->  Fetching distfiles for llvm-3.5
Warning: Your DNS servers incorrectly claim to know the address of nonexistent hosts. This may cause checksum mismatches for some ports. See this page for more information: <https://trac.macports.org/wiki/MisbehavingServers>
Error: org.macports.fetch for port llvm-3.5 returned: Subversion check out failed
Error: Failed to install llvm-3.5
Please see the log file for port llvm-3.5 for details:
    /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_lang_llvm-3.5/llvm-3.5/main.log
Error: The following dependencies were not installed: cctools ld64 llvm-3.5 cloog gmp isl gcc_select libgcc libmpc mpfr
To report a bug, follow the instructions in the guide:
    http://guide.macports.org/#project.tickets
Error: Processing of port gcc49 failed

the content of the main.log is:

version:1
:debug:main Attempting ln -sf /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_lang_llvm-3.5/llvm-3.5/work /opt/local/var/macports/sources/rsync.macports.org/release/tarballs/ports/lang/llvm-3.5/work
:debug:main changing euid/egid - current euid: 0 - current egid: 0
:debug:main egid changed to: 501
:debug:main euid changed to: 502
:debug:main Executing org.macports.main (llvm-3.5)
:debug:main Privilege de-escalation not attempted as not running as root.
:debug:main Skipping completed org.macports.archivefetch (llvm-3.5)
:debug:main Privilege de-escalation not attempted as not running as root.
:debug:fetch fetch phase started at Wed Oct 22 00:20:24 EDT 2014
:notice:fetch --->  Fetching distfiles for llvm-3.5
:warn:fetch Your DNS servers incorrectly claim to know the address of nonexistent hosts. This may cause checksum mismatches for some ports. See this page for more information: <https://trac.macports.org/wiki/MisbehavingServers>
:debug:fetch Executing proc-pre-org.macports.fetch-fetch-0
:debug:fetch Executing org.macports.fetch (llvm-3.5)
:debug:fetch Environment: 
CC_PRINT_OPTIONS='YES'
CC_PRINT_OPTIONS_FILE='/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_lang_llvm-3.5/llvm-3.5/work/.CC_PRINT_OPTIONS'
CPATH='/opt/local/include'
LIBRARY_PATH='/opt/local/lib'
MACOSX_DEPLOYMENT_TARGET='10.9'
:debug:fetch Assembled command: 'cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_lang_llvm-3.5/llvm-3.5/work" && /usr/bin/svn --non-interactive --trust-server-cert export http://llvm.org/svn/llvm-project/llvm/branches/release_35@216817'
:debug:fetch Executing command line:  cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_lang_llvm-3.5/llvm-3.5/work" && /usr/bin/svn --non-interactive --trust-server-cert export http://llvm.org/svn/llvm-project/llvm/branches/release_35@216817 2>&1
:info:fetch svn: E175002: Unable to connect to a repository at URL 'http://llvm.org/svn/llvm-project/llvm/branches/release_35'
:info:fetch svn: E175002: OPTIONS of 'http://llvm.org/svn/llvm-project/llvm/branches/release_35': Could not read status line: connection was closed by server (http://llvm.org)
:info:fetch Command failed:  cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_lang_llvm-3.5/llvm-3.5/work" && /usr/bin/svn --non-interactive --trust-server-cert export http://llvm.org/svn/llvm-project/llvm/branches/release_35@216817 2>&1
:info:fetch Exit code: 1
:error:fetch org.macports.fetch for port llvm-3.5 returned: Subversion check out failed
:debug:fetch Error code: NONE
:debug:fetch Backtrace: Subversion check out failed
    while executing
"svnfetch"
    (procedure "portfetch::fetch_main" line 13)
    invoked from within
"portfetch::fetch_main org.macports.fetch"
    ("eval" body line 1)
    invoked from within
"eval $procedure $targetname"
:info:fetch Warning: targets not executed for llvm-3.5: org.macports.activate org.macports.fetch org.macports.checksum org.macports.extract org.macports.patch org.macports.configure org.macports.build org.macports.destroot org.macports.install
:error:fetch Failed to install llvm-3.5
:debug:fetch Registry error: mpfr not registered as installed & active.
    invoked from within
"registry_active $subport"
    invoked from within
"$workername eval registry_active \$subport"
:notice:fetch Please see the log file for port llvm-3.5 for details:
    /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_lang_llvm-3.5/llvm-3.5/main.log

[ryandesign (Ryan Carsten Schmidt)]

It looks like the llvm svn server disconnected you.

Maybe they had a temporary server problem.

Try cleaning the port and trying again.

[ryandesign (Ryan Carsten Schmidt)]

On the other hand, I see someone else reported the same problem in #45517. Maybe the problem isn't so temporary.