Std.process.spawn new 0.16 help

[Sze]

I suggest you use something like this updated for recent versions:

Choosing an Allocator

0.14 release notes recomends var debug_allocator: std.heap.DebugAllocator(.{}) = .init; pub fn main() !void { const gpa, const is_debug = gpa: { if (native_os == .wasi) break :gpa .{ std.heap.wasm_allocator, false }; break :gpa switch (builtin.mode) { .Debug, .ReleaseSafe => .{ debug_allocator.allocator(), true }, .ReleaseFast, .ReleaseSmall => .{ std.heap.smp_allocator, false }, }; }; defer if (is_debug) { _ = debug_allocator…

So choose debug allocator in safe modes to detect memory leaks and std.heap.smp_allocator in unsafe release modes.

You need a thread safe allocator, debug allocator and smp_allocator are both thread safe.