This patch disables a test which caused failed assertion in tcl 8.6.3.
According to sqlite upstream[1], this should be fixed in tcl 8.6.5.

[1] http://mailinglists.sqlite.org/cgi-bin/mailman/private/sqlite-users/2015-May/059518.html

diff -up sqlite-src-3081001/test/shell1.test.old sqlite-src-3081001/test/shell1.test
--- sqlite-src-3081001/test/shell1.test.old	2015-05-18 10:33:00.360463061 +0200
+++ sqlite-src-3081001/test/shell1.test	2015-05-18 10:33:13.353532231 +0200
@@ -863,59 +863,59 @@ do_test shell1-4.6 {
 
 # Test using arbitrary byte data with the shell via standard input/output.
 #
-do_test shell1-5.0 {
-  #
-  # NOTE: Skip NUL byte because it appears to be incompatible with command
-  #       shell argument parsing.
-  #
-  for {set i 1} {$i < 256} {incr i} {
-    #
-    # NOTE: Due to how the Tcl [exec] command works (i.e. where it treats
-    #       command channels opened for it as textual ones), the carriage
-    #       return character (and on Windows, the end-of-file character)
-    #       cannot be used here.
-    #
-    if {$i==0x0D || ($tcl_platform(platform)=="windows" && $i==0x1A)} {
-      continue
-    }
-    set hex [format %02X $i]
-    set char [subst \\x$hex]; set oldChar $char
-    set escapes [list]
-    if {$tcl_platform(platform)=="windows"} {
-      #
-      # NOTE: On Windows, we need to escape all the whitespace characters,
-      #       the alarm (\a) character, and those with special meaning to
-      #       the SQLite shell itself.
-      #
-      set escapes [list \
-          \a \\a \b \\b \t \\t \n \\n \v \\v \f \\f \r \\r \
-          " " "\" \"" \" \\\" ' \"'\" \\ \\\\]
-    } else {
-      #
-      # NOTE: On Unix, we need to escape most of the whitespace characters
-      #       and those with special meaning to the SQLite shell itself.
-      #       The alarm (\a), backspace (\b), and carriage-return (\r)
-      #       characters do not appear to require escaping on Unix.  For
-      #       the alarm and backspace characters, this is probably due to
-      #       differences in the command shell.  For the carriage-return,
-      #       it is probably due to differences in how Tcl handles command
-      #       channel end-of-line translations.
-      #
-      set escapes [list \
-          \t \\t \n \\n \v \\v \f \\f \
-          " " "\" \"" \" \\\" ' \"'\" \\ \\\\]
-    }
-    set char [string map $escapes $char]
-    set x [catchcmdex test.db ".print $char\n"]
-    set code [lindex $x 0]
-    set res [lindex $x 1]
-    if {$code ne "0"} {
-      error "failed with error: $res"
-    }
-    if {$res ne "$oldChar\n"} {
-      error "failed with byte $hex mismatch"
-    }
-  }
-} {}
+#do_test shell1-5.0 {
+#  #
+#  # NOTE: Skip NUL byte because it appears to be incompatible with command
+#  #       shell argument parsing.
+#  #
+#  for {set i 1} {$i < 256} {incr i} {
+#    #
+#    # NOTE: Due to how the Tcl [exec] command works (i.e. where it treats
+#    #       command channels opened for it as textual ones), the carriage
+#    #       return character (and on Windows, the end-of-file character)
+#    #       cannot be used here.
+#    #
+#    if {$i==0x0D || ($tcl_platform(platform)=="windows" && $i==0x1A)} {
+#      continue
+#    }
+#    set hex [format %02X $i]
+#    set char [subst \\x$hex]; set oldChar $char
+#    set escapes [list]
+#    if {$tcl_platform(platform)=="windows"} {
+#      #
+#      # NOTE: On Windows, we need to escape all the whitespace characters,
+#      #       the alarm (\a) character, and those with special meaning to
+#      #       the SQLite shell itself.
+#      #
+#      set escapes [list \
+#          \a \\a \b \\b \t \\t \n \\n \v \\v \f \\f \r \\r \
+#          " " "\" \"" \" \\\" ' \"'\" \\ \\\\]
+#    } else {
+#      #
+#      # NOTE: On Unix, we need to escape most of the whitespace characters
+#      #       and those with special meaning to the SQLite shell itself.
+#      #       The alarm (\a), backspace (\b), and carriage-return (\r)
+#      #       characters do not appear to require escaping on Unix.  For
+#      #       the alarm and backspace characters, this is probably due to
+#      #       differences in the command shell.  For the carriage-return,
+#      #       it is probably due to differences in how Tcl handles command
+#      #       channel end-of-line translations.
+#      #
+#      set escapes [list \
+#          \t \\t \n \\n \v \\v \f \\f \
+#          " " "\" \"" \" \\\" ' \"'\" \\ \\\\]
+#    }
+#    set char [string map $escapes $char]
+#    set x [catchcmdex test.db ".print $char\n"]
+#    set code [lindex $x 0]
+#    set res [lindex $x 1]
+#    if {$code ne "0"} {
+#      error "failed with error: $res"
+#    }
+#    if {$res ne "$oldChar\n"} {
+#      error "failed with byte $hex mismatch"
+#    }
+#  }
+#} {}
 
 finish_test