This is METAFONT, Version 0.2 (INIMF)
** &trap  trap 
(trap.mf
\*//*\trap\pass2!
! Missing symbolic token inserted.
<inserted text> 
                 INACCESSIBLE
<to be read again> 
                   7
l.21 ...t next=\; delimiters ↑~7
                                 fi
! Extra tokens will be flushed.
<to be read again> 
                   7
l.21 ...t next=\; delimiters ↑~7
                                 fi
! Forbidden token found while scanning to the end of the statement.
<inserted text> 
                ;
<to be read again> 
                   \
l.22 next\
          ; % the second pass will now compute silently; the ...

hello again
>> _1
! OK.
<for...> ...ow._.enddef;f.xx[1);
                                begingroup.showstats;showall....
<inserted text> endfor
                      
<to be read again> 
                   endtext
l.161 bye endtext
                 
Memory usage 1423&364 (max 2075&435)
String usage 30&111 (max 57&3702)
! OK.
<for...> ...egingroup.showstats;
                                showall.nullpen;tracingonline...
<inserted text> endfor
                      
<to be read again> 
                   endtext
l.161 bye endtext
                 
>> pen (see the transcript file)
! OK.
<for...> ...ats;showall.nullpen;
                                tracingonline:=1;showalldepen...
<inserted text> endfor
                      
<to be read again> 
                   endtext
l.161 bye endtext
                 
{showalldependencies}
ypart '=-xpart '-0.66667
! OK.
<for...> ...showalldependencies;
                                bye ENDFOR
<inserted text> endfor
                      
<to be read again> 
                   endtext
l.161 bye endtext
                 
{[repeat the loop]}
! A group begun on line 161 never ended.
<to be read again> 
                   endtext
l.161 bye endtext
                 
{endgroup}
(end occurred when else on line 93 was incomplete)
(end occurred when if on line 36 was incomplete)
(end occurred when elseif on line 21 was incomplete)
(see the transcript file for additional information)
(illegal design size has been changed to 128pt)
(some chardp values had to be adjusted by as much as 0.5pt)
(4 font metric dimensions had to be decreased)
Font metrics written on trap.tfm
Output written on trap.gf (5 characters, 896 bytes).
Transcript written on trap.log.