Test on both FreeBSD 12 and 14

By default only enable tests that will pass on FreeBSD 12.3.  But run a
CI job on FreeBSD 14 and set a flag that will enable such tests.

Author: asomers

.cirrus.yml

@@ -34,11 +34,18 @@ test: &TEST
 # 64-bit kernel and in a 64-bit environment.  Our tests don't execute any of
 # the system's binaries, so the environment shouldn't matter.
 task:
-  name: FreeBSD amd64 & i686
   env:
     TARGET: x86_64-unknown-freebsd
-  freebsd_instance:
-    image: freebsd-12-3-release-amd64
+  matrix:
+    - name: FreeBSD 12 amd64 & i686
+      freebsd_instance:
+        image: freebsd-12-3-release-amd64
+    - name: FreeBSD 14 amd64 & i686
+      freebsd_instance:
+        image_family: freebsd-14-0-snap
+      # Enable tests that would fail on FreeBSD 12
+      RUSTFLAGS: --cfg fbsd14 -D warnings
+      RUSTDOCFLAGS: --cfg fbsd14
   setup_script:
     - kldload mqueuefs
     - fetch https://sh.rustup.rs -o rustup.sh

bors.toml

@@ -5,7 +5,8 @@ status = [
   "Android i686",
   "Android x86_64",
   "DragonFly BSD x86_64",
-  "FreeBSD amd64 & i686",
+  "FreeBSD 12 amd64 & i686",
+  "FreeBSD 14 amd64 & i686",
   "Fuchsia x86_64",
   "Linux MIPS",
   "Linux MIPS64 el",

src/fcntl.rs

@@ -742,8 +742,8 @@ impl SpacectlRange {
 ///
 /// # Example
 ///
-// no_run because it fails to link until FreeBSD 14.0
-/// ```no_run
+#[cfg_attr(fbsd14, doc = " ```")]
+#[cfg_attr(not(fbsd14), doc = " ```no_run")]
 /// # use std::io::Write;
 /// # use std::os::unix::fs::FileExt;
 /// # use std::os::unix::io::AsRawFd;
@@ -788,8 +788,8 @@ pub fn fspacectl(fd: RawFd, range: SpacectlRange) -> Result<SpacectlRange> {
 ///
 /// # Example
 ///
-// no_run because it fails to link until FreeBSD 14.0
-/// ```no_run
+#[cfg_attr(fbsd14, doc = " ```")]
+#[cfg_attr(not(fbsd14), doc = " ```no_run")]
 /// # use std::io::Write;
 /// # use std::os::unix::fs::FileExt;
 /// # use std::os::unix::io::AsRawFd;

src/sys/aio.rs

@@ -619,7 +619,8 @@ impl<'a> AsRef<libc::aiocb> for AioRead<'a> {
 /// # Examples
 ///
 ///
-/// ```
+#[cfg_attr(fbsd14, doc = " ```")]
+#[cfg_attr(not(fbsd14), doc = " ```no_run")]
 /// # use nix::errno::Errno;
 /// # use nix::Error;
 /// # use nix::sys::aio::*;
@@ -845,7 +846,8 @@ impl<'a> AsRef<libc::aiocb> for AioWrite<'a> {
 ///
 /// # Examples
 ///
-/// ```
+#[cfg_attr(fbsd14, doc = " ```")]
+#[cfg_attr(not(fbsd14), doc = " ```no_run")]
 /// # use nix::errno::Errno;
 /// # use nix::Error;
 /// # use nix::sys::aio::*;

test/sys/test_aio.rs

@@ -201,6 +201,7 @@ mod aio_read {
 }
 
 #[cfg(target_os = "freebsd")]
+#[cfg(fbsd14)]
 mod aio_readv {
     use super::*;
     use std::io::IoSliceMut;
@@ -381,6 +382,7 @@ mod aio_write {
 }
 
 #[cfg(target_os = "freebsd")]
+#[cfg(fbsd14)]
 mod aio_writev {
     use super::*;
     use std::io::IoSlice;