bash-3.2$ sudo port -d install ruby 
DEBUG: Found port in file:///opt/local/var/macports/sources/rsync.macports.org/release/ports/lang/ruby
DEBUG: Changing to port directory: /Volumes/john/Users/john/Mac Ports/local/var/macports/sources/rsync.macports.org/release/ports/lang/ruby
DEBUG: OS Platform: darwin
DEBUG: OS Version: 10.0.0
DEBUG: Mac OS X Version: 10.6
DEBUG: System Arch: i386
DEBUG: setting option os.universal_supported to yes
DEBUG: org.macports.load registered provides 'load', a pre-existing procedure. Target override will not be provided
DEBUG: org.macports.unload registered provides 'unload', a pre-existing procedure. Target override will not be provided
DEBUG: org.macports.distfiles registered provides 'distfiles', a pre-existing procedure. Target override will not be provided
DEBUG: Reading variant descriptions from /Volumes/john/Users/john/Mac Ports/local/var/macports/sources/rsync.macports.org/release/ports/_resources/port1.0/variant_descriptions.conf
DEBUG: universal variant already exists, so not adding the default one
DEBUG: Requested variant i386 is not provided by port ruby.
DEBUG: Requested variant macosx is not provided by port ruby.
DEBUG: Executing variant darwin provides darwin
DEBUG: Executing variant thread_hooks provides thread_hooks
--->  Computing dependencies for ruby
DEBUG: Searching for dependency: libiconv
DEBUG: Didn't find receipt, going to depspec regex for: libiconv
DEBUG: Found port in file:///opt/local/var/macports/sources/rsync.macports.org/release/ports/textproc/libiconv
DEBUG: Changing to port directory: /Volumes/john/Users/john/Mac Ports/local/var/macports/sources/rsync.macports.org/release/ports/textproc/libiconv
DEBUG: OS Platform: darwin
DEBUG: OS Version: 10.0.0
DEBUG: Mac OS X Version: 10.6
DEBUG: System Arch: i386
DEBUG: setting option os.universal_supported to yes
DEBUG: org.macports.load registered provides 'load', a pre-existing procedure. Target override will not be provided
DEBUG: org.macports.unload registered provides 'unload', a pre-existing procedure. Target override will not be provided
DEBUG: org.macports.distfiles registered provides 'distfiles', a pre-existing procedure. Target override will not be provided
DEBUG: Using group file /Volumes/john/Users/john/Mac Ports/local/var/macports/sources/rsync.macports.org/release/ports/_resources/port1.0/group/muniversal-1.0.tcl
DEBUG: wrong # args: should be "source ?-encoding name? fileName"
    while executing
"source /Volumes/john/Users/john/Mac Ports/local/var/macports/sources/rsync.macports.org/release/ports/_resources/port1.0/group/muniversal-1.0.tcl"
    ("uplevel" body line 1)
    invoked from within
"uplevel "source $groupFile""
    (procedure "PortGroup" line 8)
    invoked from within
"PortGroup               muniversal 1.0"
    (file "Portfile" line 4)
    invoked from within
"source Portfile"
    invoked from within
"$workername eval source Portfile"
    (procedure "mportopen" line 46)
    invoked from within
"mportopen $portinfo(porturl) $options $variations"
    (procedure "mportdepends" line 66)
    invoked from within
"mportdepends $mport $target"
    (procedure "mportexec" line 35)
    invoked from within
"mportexec $workername $target"
Error: Unable to execute port: wrong # args: should be "source ?-encoding name? fileName"