stage 2 compiler crashes with error code 5 and no messages when passing bad arguments to allocator create

[peterino2]

Zig Version

0.10.0-dev.3877+3deb33fff

Steps to Reproduce

I can't create a very minimal example, as any very small examples i try to do with this results in different errors.

1. run zig init-exe
2. in src/main.zig use this source:
3. link libc (for c_allocator)

const std = @import("std");
const Atomic = std.atomic.Atomic;
const ArrayListUnmanaged = std.ArrayListUnmanaged;

const S = struct {
    func: *const fn (*anyopaque, *anyopaque) void,
};

pub fn testFunc(allocator: std.mem.Allocator, comptime CaptureType: type) !*CaptureType {
    const Wrap = struct {
        pub fn wrappedFunc(pointer: *anyopaque, context: *anyopaque) void {
            var ptr = @ptrCast(*CaptureType, @alignCast(@alignOf(CaptureType), pointer));
            ptr.func(context);
        }
    };

    _ = Wrap;

    var s = S{
        .func = Wrap.wrappedFunc,
    };
    _ = s;

    var ptr = try allocator.create(@sizeOf(CaptureType));
    ptr.func = Wrap.wrappedFunc;
    return ptr;
}

pub fn main() !void {
    const TestStruct = struct {
        v: u32 = 42069,
    };

    var p = try testFunc(
        std.heap.c_allocator,
        TestStruct,
    );

    _ = p;
}

Expected Behavior

I would expect a more useful error message, here's the out of the code when compiled with stage 1:

(base) C:\Users\Admin\git\repro>zig build run -fstage1
.\src\main.zig:88:40: error: expected type 'type', found 'comptime_int'
        var ptr = try allocator.create(@sizeOf(CaptureType));
                                       ^
.\src\main.zig:120:40: note: called from here
    var jobContext = try JobContext.new(
                                       ^
.\src\main.zig:102:21: note: called from here
pub fn main() !void {
                    ^
error: repro...
error: The following command exited with error code 1:
C:\app\zig\zig.exe build-exe -fstage1 C:\Users\Admin\git\repro\src\main.zig -lc --cache-dir C:\Users\Admin\git\repro\zig-cache --global-cache-dir C:\Users\Admin\AppData\Local\zig --name repro --enable-cache
error: the following build command failed with exit code 1:
C:\Users\Admin\git\repro\zig-cache\o\bb47ef463b4c6066ccf5ed3a8b788b20\build.exe C:\app\zig\zig.exe C:\Users\Admin\git\repro C:\Users\Admin\git\repro\zig-cache C:\Users\Admin\AppData\Local\zig run -fstage1 -fstage1

Actual Behavior

compiling with stage 2, this results in the following very unhelpful error

(base) C:\Users\Admin\git\repro>zig build run
error: repro...
error: The following command exited with error code 5:
C:\app\zig\zig.exe build-exe C:\Users\Admin\git\repro\src\main.zig -lc --cache-dir C:\Users\Admin\git\repro\zig-cache --global-cache-dir C:\Users\Admin\AppData\Local\zig --name repro --enable-cache
error: the following build command failed with exit code 5:
C:\Users\Admin\git\repro\zig-cache\o\df4b42c5bdd1b0e7384f7bac586625bc\build.exe C:\app\zig\zig.exe C:\Users\Admin\git\repro C:\Users\Admin\git\repro\zig-cache C

[peterino2]

I should note that removing the whole Wrap struct and WrappedFunc lines does result in sane errors.

    // const Wrap = struct {
    //     pub fn wrappedFunc(pointer: *anyopaque, context: *anyopaque) void {
    //         var ptr = @ptrCast(*CaptureType, @alignCast(@alignOf(CaptureType), pointer));
    //         ptr.func(context);
    //     }
    // };

    // _ = Wrap;

    // var s = S{
    //     .func = Wrap.wrappedFunc,
    // };
    // _ = s;

    var ptr = try allocator.create(@sizeOf(CaptureType));
    //ptr.func = Wrap.wrappedFunc;
    return ptr;

(base) C:\Users\Admin\git\repro>zig build run
C:\app\zig\lib\std\mem\Allocator.zig:182:41: error: expected type 'type', found 'comptime_int'
pub fn create(self: Allocator, comptime T: type) Error!*T {
                                        ^
error: repro...
error: The following command exited with error code 1:
C:\app\zig\zig.exe build-exe C:\Users\Admin\git\repro\src\main.zig -lc --cache-dir C:\Users\Admin\git\repro\zig-cache --global-cache-dir C:\Users\Admin\AppData\Local\zig --name repro --enable-cache
error: the following build command failed with exit code 1:
C:\Users\Admin\git\repro\zig-cache\o\df4b42c5bdd1b0e7384f7bac586625bc\build.exe C:\app\zig\zig.exe C:\Users\Admin\git\repro C:\Users\Admin\git\repro\zig-cache C:\Users\Admin\AppData\Local\zig run

[Vexu]

Likely duplicate of #12433