rsync - May 2008 - source-filter_dest-filter patch failing with rsync 3.0.0

I'm using the source-filter option in this patch with the command
rsync.exe -a -v -e ssh --source-filter="/cygdrive/c/openssl.exe enc -des3
-pass pass:whatever -a" /cygdrive/c/backup user@dir:
to crypt files to be sent at source with openssl.

At some point rsync fails an i get
104435520 [main] rsync 1040 _cygtls::handle_exceptions: Exception:
STATUS_ACCESS_VIOLATION
104436464 [main] rsync 1040 open_stackdumpfile: Dumping stack trace to
rsync.exe.stackdump
107286788 [main] rsync 1040 _cygtls::handle_exceptions: Exception:
STATUS_ACCESS_VIOLATION
107318448 [main] rsync 1040 _cygtls::handle_exceptions: Error while dumping
state (probably corrupted stack).

I know this patch was updated for rsync 2.6.9 because it failed, but i think
it's not been updated later....i need to use version 3.0.x because of the
--iconv option.

I've performed an strace and the output for the error was:

50 9020694 [main] rsync 1040 fhandler_disk_file::readdir: 0 = readdir
(0x100875D0, 0x22AE84) (Header.html)
  110 9020804 [main] rsync 1040 lstat64: entering
   57 9020861 [main] rsync 1040 normalize_posix_path: src backup/pruebas
sftp/?ra?a/html/lib/Encode/MIME/Header.html
   54 9020915 [main] rsync 1040 cwdstuff::get: posix /cygdrive/c
   45 9020960 [main] rsync 1040 cwdstuff::get: (/cygdrive/c) = cwdstuff::get
(0x22A910, 260, 1, 0), errno 0
   42 9021002 [main] rsync 1040 normalize_posix_path:
/cygdrive/c/backup/pruebas sftp/?ra?a/html/lib/Encode/MIME/Header.html
normalize_posix_path (backup/pruebas
sftp/?ra?a/html/lib/Encode/MIME/Header.html)
   70 9021072 [main] rsync 1040 mount_info::conv_to_win32_path:
conv_to_win32_path (/cygdrive/c/backup/pruebas
sftp/?ra?a/html/lib/Encode/MIME/Header.html)
   44 9021116 [main] rsync 1040 mount_info::cygdrive_win32_path: src
'/cygdrive/c/backup/pruebas
sftp/?ra?a/html/lib/Encode/MIME/Header.html',
dst 'c:\backup\pruebas sftp\?ra?a\html\lib\Encode\MIME\Header.html'
   43 9021159 [main] rsync 1040 set_flags: flags: binary (0x2)
   42 9021201 [main] rsync 1040 mount_info::conv_to_win32_path: src_path
/cygdrive/c/backup/pruebas sftp/?ra?a/html/lib/Encode/MIME/Header.html, dst
c:\backup\pruebas sftp\?ra?a\html\lib\Encode\MIME\Header.html, flags 0x2A,
rc 0
   78 9021279 [main] rsync 1040 symlink_info::check: not a symlink
   43 9021322 [main] rsync 1040 symlink_info::check: 0 = symlink.check
(c:\backup\pruebas sftp\?ra?a\html\lib\Encode\MIME\Header.html, 0x22A5D0)
(0x2A)
   42 9021364 [main] rsync 1040 path_conv::check:
this->path(c:\backup\pruebas sftp\?ra?a\html\lib\Encode\MIME\Header.html),
has_acls(1)
   43 9021407 [main] rsync 1040 build_fh_pc: fh 0x6116A2B8
   39 9021446 [main] rsync 1040 stat_worker: (backup/pruebas
sftp/?ra?a/html/lib/Encode/MIME/Header.html, 0x22AE50, 1, 0x6116A2B8),
file_attributes 32
   43 9021489 [main] rsync 1040 fhandler_base::open: (c:\backup\pruebas
sftp\?ra?a\html\lib\Encode\MIME\Header.html, 0x110000)
   71 9021560 [main] rsync 1040 fhandler_base::set_flags: flags 0x110000,
supplied_bin 0x10000
   49 9021609 [main] rsync 1040 fhandler_base::set_flags: O_TEXT/O_BINARY
set in flags 0x10000
   39 9021648 [main] rsync 1040 fhandler_base::set_flags: filemode set to
binary
   51 9021699 [main] rsync 1040 fhandler_base::open: 0 = NtCreateFile
(0x654, 20080, c:\backup\pruebas
sftp\?ra?a\html\lib\Encode\MIME\Header.html, io, NULL, 0, 7, 1, 4000, NULL,
0)
   51 9021750 [main] rsync 1040 fhandler_base::open: 1 = fhandler_base::open
(c:\backup\pruebas sftp\?ra?a\html\lib\Encode\MIME\Header.html, 0x110000)
   47 9021797 [main] rsync 1040 fhandler_base::open_fs: 1
fhandler_disk_file::open (c:\backup\pruebas
sftp\?ra?a\html\lib\Encode\MIME\Header.html, 0x10000)
   70 9021867 [main] rsync 1040 get_file_attribute: file: c:\backup\pruebas
sftp\?ra?a\html\lib\Encode\MIME\Header.html
  131 9021998 [main] rsync 1040 cygpsid::debug_print: get_sids_info: owner
SID = S-1-5-21-1844237615-1220945662-725345543-1003
   54 9022052 [main] rsync 1040 cygpsid::debug_print: get_sids_info: group
SID = S-1-5-21-1844237615-1220945662-725345543-513
   46 9022098 [main] rsync 1040 get_info_from_sd: ACL 1C0, uid 1003, gid 513
   70 9022168 [main] rsync 1040 fhandler_base::fstat_helper: 0 = fstat (,
0x22AE50) st_atime=4831505D st_size=4002, st_mode=0x81C0,
st_ino=281474977041002, sizeof=96
   47 9022215 [main] rsync 1040 fhandler_base::close: closing
'/cygdrive/c/backup/pruebas sftp/?ra?a/html/lib/Encode/MIME/Header.html'
handle 0x654
   69 9022284 [main] rsync 1040 stat_worker: 0 = (backup/pruebas
sftp/?ra?a/html/lib/Encode/MIME/Header.html, 0x22AE50)
  140 9022424 [main] rsync 1040 geterrno_from_win_error: windows error 18 =errno
89.

I'd appreciate any help

P.S: As you can see i'm using rsync with cygwin. but I don't think
that's
the source of the error (i hope)
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