ggez: Creating context fails with "glxSwapIntervalMESA failed"

Whenever ggez tries to make a context, it fails with UnknownError("glxSwapIntervalMESA failed"). I’ve included at the end a backtrace running the hello_world example (as of commit 40d70a79bb3f46c75b4d11bd4424c036c540a9fd).

This is running in a VM, which seems extremely likely to be the issue at some level. It’s a Ubuntu 16.04 VM running on a Windows 7 host in VMWare Workstation 12. Here’s the output of glxinfo.

I’ve tried modify the OpenGL version used, to no avail: I’ve tried 3.0, 2.1, and 1.1. Here’s the diff showing what I did in case I did it wrong:

diff --git a/examples/hello_world.rs b/examples/hello_world.rs
index 58e8e9b..c3138fd 100644
--- a/examples/hello_world.rs
+++ b/examples/hello_world.rs
@@ -62,7 +62,8 @@ impl event::EventHandler for MainState {
 // do the work of creating our MainState and running our game,
 // * then just call `game.run()` which runs the `Game` mainloop.
 pub fn main() {
-    let c = conf::Conf::new();
+    let mut c = conf::Conf::new();
+    c.backend = conf::Backend::OpenGL{major: 3, minor:0};
     let ctx = &mut Context::load_from_conf("helloworld", "ggez", c).unwrap();
 
     // We add the CARGO_MANIFEST_DIR/resources do the filesystems paths so

And here’s the backtrace:

cargo run --example hello_world
    Finished dev [unoptimized + debuginfo] target(s) in 0.0 secs
     Running `target/debug/examples/hello_world`
thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: UnknownError("glxSwapIntervalMESA failed")', libcore/result.rs:945:5
stack backtrace:
   0:     0x55ef91ea6c63 - std::sys::unix::backtrace::tracing::imp::unwind_backtrace::h038efa1ead8ee277
                               at libstd/sys/unix/backtrace/tracing/gcc_s.rs:49
   1:     0x55ef91ea14c4 - std::sys_common::backtrace::_print::haa2469a6e6008f11
                               at libstd/sys_common/backtrace.rs:71
   2:     0x55ef91ea5c0d - std::panicking::default_hook::{{closure}}::ha5918fb5e6555fa7
                               at libstd/sys_common/backtrace.rs:59
                               at libstd/panicking.rs:206
   3:     0x55ef91ea5909 - std::panicking::default_hook::h4ddc2e74f1ee24ea
                               at libstd/panicking.rs:222
   4:     0x55ef91ea606f - std::panicking::rust_panic_with_hook::hf7d91abe57c1b397
                               at libstd/panicking.rs:400
   5:     0x55ef91ea5e92 - std::panicking::begin_panic_fmt::h83678fb4d002c950
                               at libstd/panicking.rs:347
   6:     0x55ef91ea5dc2 - rust_begin_unwind
                               at libstd/panicking.rs:323
   7:     0x55ef91eec670 - core::panicking::panic_fmt::h28698393dd7f7d54
                               at libcore/panicking.rs:71
   8:     0x55ef91986657 - core::result::unwrap_failed::hb6a6cad29b2abe59
                               at /checkout/src/libcore/macros.rs:23
   9:     0x55ef919864b6 - <core::result::Result<T, E>>::unwrap::h87e337a4feea38b9
                               at /checkout/src/libcore/result.rs:782
  10:     0x55ef91991f0d - hello_world::main::h2b713c399af204e2
                               at examples/hello_world.rs:66
  11:     0x55ef91992f01 - std::rt::lang_start::{{closure}}::h4119ece9ec322894
                               at /checkout/src/libstd/rt.rs:74
  12:     0x55ef91ea5d27 - std::panicking::try::do_call::hc331ed8d98dd7e72
                               at libstd/rt.rs:59
                               at libstd/panicking.rs:305
  13:     0x55ef91eb1f9e - __rust_maybe_catch_panic
                               at libpanic_unwind/lib.rs:102
  14:     0x55ef91ea6533 - std::rt::lang_start_internal::h2271475d0185b808
                               at libstd/panicking.rs:284
                               at libstd/panic.rs:361
                               at libstd/rt.rs:58
  15:     0x55ef91992ee1 - std::rt::lang_start::h376a47b757c20492
                               at /checkout/src/libstd/rt.rs:74
  16:     0x55ef919923fd - main
  17:     0x7fa35d9b482f - __libc_start_main
  18:     0x55ef91985858 - _start
  19:                0x0 - <unknown>