Compiler error when appending to the z axis of a width and height fixed 3d array

[drakeerv]

V doctor:

V full version: V 0.4.8 b79b4bf.b383cce
OS: windows, Microsoft Windows 11 Pro v26100 64-bit
Processor: 16 cpus, 64bit, little endian, 

getwd: E:\Projects\advent2024\day14
vexe: C:\Users\drake\AppData\Local\Programs\V\V04\v.exe
vexe mtime: 2024-12-03 02:00:11

vroot: OK, value: C:\Users\drake\AppData\Local\Programs\V\V04
VMODULES: OK, value: C:\Users\drake\.vmodules
VTMP: OK, value: C:\Users\drake\AppData\Local\Temp\v_0

Git version: git version 2.41.0.windows.3
Git vroot status: Error: fatal: not a git repository (or any of the parent directories): .git
.git/config present: false

CC version: Error: 'cc' is not recognized as an internal or external command,

operable program or batch file.


emcc version: Error: 'emcc' is not recognized as an internal or external command,

operable program or batch file.


thirdparty/tcc: N/A

What did you do?
./v -g -o vdbg cmd/v && ./vdbg bug.v

fn main() {
	// create a 2x2x* 3d array that holds int values
	mut space := [2][2][]int{}
	// append 0 to the z axis of the cell at 1,1
	space[1][1] << 0
	// print the value at 1,1
	print(space[1][1])
}

What did you expect to see?

[0]

What did you see instead?

================== C compilation error (from tcc): ==============
cc: C:/Users/drake/AppData/Local/Temp/v_0/bug.01JF1YDJYMTDVTG6Y51D71DDF6.tmp.c:7190: warning: implicit declaration of function 'tcc_backtrace'
cc: C:/Users/drake/AppData/Local/Temp/v_0/bug.01JF1YDJYMTDVTG6Y51D71DDF6.tmp.c:13896: error: too few arguments to function
... (the original output was 3 lines long, and was truncated to 2 lines)
=================================================================
(You can pass `-cg`, or `-show-c-output` as well, to print all the C error messages).
builder error: 
==================
C error found. It should never happen, when compiling pure V code.
This is a V compiler bug, please report it using `v bug file.v`,
or goto https://github.com/vlang/v/issues/new/choose .
You can also use #help on Discord: https://discord.gg/vlang .

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_{Huly®: V_0.6-21593}