This test is silly. All it does is fill up the VRAM until it's completely full, and then fails.

[Ichimikichiki]

What a stupid test. Just fills up the VRAM until there's none left. What is the point of this?

[AVHWDeviceContext @ 0x25bfe376ac0] cu->cuMemAlloc(&data, size) failed -> CUDA_ERROR_OUT_OF_MEMORY: out of memorypeed=21.6x    
[AVHWDeviceContext @ 0x25bfe376ac0] cu->cuMemAlloc(&data, size) failed -> CUDA_ERROR_OUT_OF_MEMORY: out of memory
[hwupload @ 0x25bfecb1540] Failed to allocate frame to upload to.
[vf#0:0 @ 0x25bfe31acc0] Error while filtering: Cannot allocate memory
Failed to inject frame into filter network: Cannot allocate memory
Error while filtering: Cannot allocate memory
[out#0/null @ 0x25bfe35a340] video:707kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
[out#1/null @ 0x25bfec77d00] video:30123kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
[out#2/null @ 0x25bfec94d80] video:30123kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
[out#3/null @ 0x25bfecb1f00] video:30124kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
[out#4/null @ 0x25bfeccf0c0] video:30124kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
[out#5/null @ 0x25bfecec2c0] video:30124kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
[out#6/null @ 0x25bfed09580] video:30124kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
[out#7/null @ 0x25bfed266c0] video:30132kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
[out#8/null @ 0x25bfed43800] video:30133kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
frame= 1250 fps= 13 q=8.0 Lq=9.0 q=9.0 q=9.0 q=9.0 q=9.0 q=9.0 q=9.0 q=9.0 size=N/A time=00:35:05.72 bitrate=N/A speed=21.6x    
Conversion failed!

[temp-byte]

You might want to try different version and/or provider of ffmpeg.
I ran into the same kind of issue where my RAM would just fill up to a certain point and the test failed.
This did not occur when I used the ffmpeg from directory of Shotcut, OBS Studio or ffmpeg from gyan.dev

[ABelliqueux]

Same here on Manjaro Linux:

$ uname -a 
Linux foo 6.6.30-2-MANJARO #1 SMP PREEMPT_DYNAMIC Wed May  8 17:46:43 UTC 2024 x86_64 GNU/Linux
$ ffmpeg -version
ffmpeg version n6.1.1 Copyright (c) 2000-2023 the FFmpeg developers
built with gcc 13.2.1 (GCC) 20230801
[...]
$ nvidia-smi
Tue Jun 11 18:17:18 2024       
+-----------------------------------------------------------------------------------------+
| NVIDIA-SMI 550.78                 Driver Version: 550.78         CUDA Version: 12.4     |
[...]
|   0  NVIDIA GeForce GTX 1050        Off |   00000000:01:00.0 Off |                  N/A |

[moogoos]

Same problem for me
Ubuntu 24.04
NVIDIA-SMI 555.58.02
Driver Version: 555.58.02
CUDA Version: 12.5
ffmpeg version 6.1.1-3ubuntu5 Copyright (c) 2000-2023 the FFmpeg developers
built with gcc 13 (Ubuntu 13.2.0-23ubuntu3)