Embedding != inheritance. This is Go (not Java/Python/C++ with 'Foo' as a virtual method), so this outputs FooBar instead of CrowBar.

main.go

package main

import(
        "fmt"
)

type FooBar struct {}

func (f *FooBar) Foo() string {
        return "Foo"
}

func (f *FooBar) Bar() string {
        return f.Foo() + "Bar"
}

type Crow struct {
        *FooBar
}
func (c *Crow) Foo() string {
        return "Crow"
}

func main() {
        x := &Crow{
                FooBar: &FooBar{},
        }

        // Outputs: FooBar
        fmt.Printf(x.Bar())
}