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Memory leak on macOS #18

@kamidev

Description

@kamidev

Tested with download binary for zig version nominated by Mach.

➜  aftersun git:(main) which mzig
mzig: aliased to /Users/jonas/src/zig/zig-macos-aarch64-0.12.0-dev.3180+83e578a18/zig
➜  aftersun git:(main) sw_vers; mzig cc -v
ProductName:		macOS
ProductVersion:		14.4.1
BuildVersion:		23E224
clang version 17.0.6 (https://github.com/ziglang/zig-bootstrap 4c78aa1bba84dbd324e178932cd52221417f63da)
Target: aarch64-unknown-darwin23.4.0
Thread model: posix
InstalledDir: /usr/bin

Run app (using sysgpu) and immediately close it.
Expected result is diagnostic output withour errors.

➜  aftersun git:(main) mzig build run -Duse_sysgpu=true
info(mach): found Metal backend on Discrete GPU adapter: Apple M3 Max,

error(gpa): memory address 0x11571c000 leaked:
/Users/jonas/.cache/zig/p/1220ba5472217ef81455b19d540967049bbfaf768b30d04534865707e907ee1c4aec/src/sysgpu/metal.zig:2136:43: 0x105a1e487 in init (aftersun)
        const queue = try allocator.create(Queue);
                                          ^
/Users/jonas/.cache/zig/p/1220ba5472217ef81455b19d540967049bbfaf768b30d04534865707e907ee1c4aec/src/sysgpu/metal.zig:278:42: 0x105a1e793 in getQueue (aftersun)
            device.queue = try Queue.init(device);
                                         ^
/Users/jonas/.cache/zig/p/1220ba5472217ef81455b19d540967049bbfaf768b30d04534865707e907ee1c4aec/src/sysgpu/main.zig:599:38: 0x105a211ef in init (aftersun)
        const queue = device.getQueue() catch @panic("api error");
                                     ^
/Users/jonas/.cache/zig/p/1220ba5472217ef81455b19d540967049bbfaf768b30d04534865707e907ee1c4aec/src/core/main.zig:151:27: 0x105a23ecf in init (aftersun)
    try platform.Core.init(
                          ^
/Users/jonas/src/zig/aftersun/src/aftersun.zig:157:18: 0x105a8047b in init (aftersun)
    try core.init(.{
                 ^
/Users/jonas/.cache/zig/p/1220ba5472217ef81455b19d540967049bbfaf768b30d04534865707e907ee1c4aec/src/core/platform/native_entrypoint.zig:36:17: 0x105a8da1f in main (aftersun)
    try app.init();
                ^

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