| 7 Oct 2025 |
 fzakaria | this is a valid derivation | 20:40:02 |
| fzakaria |
builtins�ivatorld' > $out" ];⏎
| 20:40:04 |
| fzakaria | cat output_dir/default/queue/id:000001,src:000000,time:7439,execs:424,op:havoc,rep:2,+cov
builtins�ivatorld' > $out" ];⏎
> nix build -f output_dir/default/queue/id:000001,src:000000,time:7439,execs:424,op:havoc,rep:2,+cov
| 20:40:31 |
| fzakaria | * cat output_dir/default/queue/id:000001,src:000000,time:7439,execs:424,op:havoc,rep:2,+cov
builtins�ivatorld' > $out" ];⏎
> nix build -f output_dir/default/queue/id:000001,src:000000,time:7439,execs:424,op:havoc,rep:2,+cov
> echo $status
0
| 20:40:44 |
| fzakaria | well ... it just exits with 0 ... but there is no result | 20:42:37 |
| fzakaria | (lots of other similar cases) | 20:42:45 |
 dramforever | can you get a hexdump? i want to take a look | 20:46:33 |
| fzakaria | I have tons of them. | 20:46:42 |
| fzakaria | here is a small one | 20:46:58 |
| fzakaria | 0000000 7562 6c69 6974 736e 2320 0000 0000 0000
0000010 9e9e 0000 0000 0000 0000 0000 0000 0000
0000020 0000
0000021
| 20:47:04 |
| dramforever | yay | 20:47:05 |
| fzakaria |
builtins #��⏎
| 20:47:15 |
| dramforever | so is just builtins... | 20:49:12 |
| fzakaria | but why does it nix build O.o | 20:49:23 |
| dramforever | pass like a bajillion -v and you'll see it trying to get every attribute | 20:49:44 |
| dramforever | notices that none of them are derivations | 20:49:57 |
| dramforever | and "i guess nothing to build" | 20:50:04 |
| dramforever | it's like { } | 20:50:18 |
| fzakaria | empty attrs build ? | 20:50:36 |
| fzakaria | weird | 20:50:39 |
| fzakaria | feels like the output should always be derivation | 20:50:49 |
| fzakaria | Im surprised it even evaluated. | 20:50:59 |
| dramforever | it can be attrset of derivation | 20:51:00 |
| dramforever | try nix-build -E '{ inherit (import <nixpkgs> {}) hello coreutils; }' | 20:52:37 |
| dramforever | this gives you two | 20:52:42 |
| fzakaria | hmm; i wonder if i can set something to always expect 1 | 20:52:56 |
| fzakaria | so i can try this excercise again | 20:53:02 |
 lovesegfault | fzakaria: i'm running the parallel one, and then the stats look different | 20:53:26 |
| lovesegfault | Summary stats
=============
Fuzzers alive : 32
Dead or remote : 1 (excluded from stats)
Total run time : 6 days, 3 hours
Total execs : 8156 millions
Cumulative speed : 490855 execs/sec
Total average speed : 15339 execs/sec
Current average speed : 469074 execs/sec
Pending items : 0 faves, 0 total
Pending per fuzzer : 0 faves, 0 total (on average)
Coverage reached : 34.83%
Crashes saved : 12
Hangs saved : 7
Cycles without finds : 4/174/6/216/12/70/251/10/220/443/41/154/365/48/246/50/97/31/396/382/95/92/82/173/72/166/3/63/90/140/363/416/350
Time without finds : 1 minutes, 7 seconds
| 20:53:36 |
| lovesegfault | i'm at almost 35% coverage now that i added the dictionary, it's pretty cool | 20:54:09 |
