attempt to unwrap error missing the error in ReleaseSafe

[Jarred-Sumner]

Zig Version

0.12.0-dev.1830+779b8e259

Steps to Reproduce and Observed Output

1. Code:

const std = @import("std");

pub fn main() !void {
    try doMath(std.math.add, std.math.maxInt(i32), 6);
}

fn doMath(comptime f: fn (type, i32, i32) error{Overflow}!i32, a: i32, b: i32) !void {
    const result = f(i32, a, b) catch unreachable;
    std.debug.print("Result: {}", .{result});
}

2. Run:

zig run -OReleaseSafe repro.zig

3. Error:

❯ zig run -OReleaseSafe repro.zig
thread 14126458 panic: attempt to unwrap error
fish: Job 1, 'zig run -OReleaseSafe repro.zig' terminated by signal SIGABRT (Abort)

Expected Output

thread 14136199 panic: attempt to unwrap error: Overflow
fish: Job 1, 'zig run -OReleaseSafe repro.zig' terminated by signal SIGABRT (Abort)

Related:

• bun install crashes with attempt to unwrap error oven-sh/bun#9835
• Bun upgrade to 1.1.1 crashes oven-sh/bun#9931

This does not happen in debug builds

[Vexu]

-fformatted-panics is only set by default in debug mode, see also #17969

// TODO: https://github.com/ziglang/zig/issues/17969
const formatted_panics = options.formatted_panics orelse (options.root_mod.optimize_mode == .Debug);