Doctests were not being run by CI, and have broken. Fix them.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 .gitlab-ci.d/buildtest.yml    | 6 ++++++
 rust/qemu-api/src/vmstate.rs  | 2 +-
 rust/qemu-api/src/zeroable.rs | 2 +-
 3 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/.gitlab-ci.d/buildtest.yml b/.gitlab-ci.d/buildtest.yml
index 4265a577834..00f4bfcd9f3 100644
--- a/.gitlab-ci.d/buildtest.yml
+++ b/.gitlab-ci.d/buildtest.yml
@@ -131,6 +131,12 @@ build-system-fedora-rust-nightly:
     CONFIGURE_ARGS: --disable-docs --enable-rust --enable-strict-rust-lints
     TARGETS: aarch64-softmmu
     MAKE_CHECK_ARGS: check-build
+  after_script:
+    - source scripts/ci/gitlab-ci-section
+    - section_start test "Running Rust doctests"
+    - cd build
+    - pyvenv/bin/meson devenv -w ../rust ${CARGO-cargo} test --doc -p qemu_api
+
   allow_failure: true
 
 check-system-fedora:
diff --git a/rust/qemu-api/src/vmstate.rs b/rust/qemu-api/src/vmstate.rs
index c6dfb609356..24a4dc81e7f 100644
--- a/rust/qemu-api/src/vmstate.rs
+++ b/rust/qemu-api/src/vmstate.rs
@@ -294,7 +294,7 @@ pub const fn with_varray_multiply(mut self, num: u32) -> VMStateField {
 /// # Examples
 ///
 /// ```
-/// # use qemu_api::vmstate::impl_vmstate_forward;
+/// # use qemu_api::impl_vmstate_forward;
 /// pub struct Fifo([u8; 16]);
 /// impl_vmstate_forward!(Fifo);
 /// ```
diff --git a/rust/qemu-api/src/zeroable.rs b/rust/qemu-api/src/zeroable.rs
index a2356cb2f24..47b6977828d 100644
--- a/rust/qemu-api/src/zeroable.rs
+++ b/rust/qemu-api/src/zeroable.rs
@@ -7,7 +7,7 @@
 /// behavior.  This trait in principle could be implemented as just:
 ///
 /// ```
-/// pub unsafe trait Zeroable {
+/// pub unsafe trait Zeroable: Default {
 ///     const ZERO: Self = unsafe { ::core::mem::MaybeUninit::<Self>::zeroed().assume_init() };
 /// }
 /// ```
-- 
2.48.1