Bug 1532645 - Update cubeb-backend to workaround a Rust bug. r=froydnj

rust-lang/rust#58881 doesn't repro with cubeb-backend
v5.0.1, so use that so that other Rust nightly users don't get their builds
busted.

Differential Revision: https://phabricator.services.mozilla.com/D22092

third_party/rust/cubeb-backend/.cargo-checksum.json

@@ -1 +1 @@
-{"files":{"Cargo.toml":"4bae03732c4f490b3c7dbc07d2eabccf5d0f6b5ab2c1c74d592cc7609c9d8d8e","LICENSE":"8c044baa5d883274736eeece0b955249076c2697b826e576fce59496235b2cf5","src/capi.rs":"300e76bd3901de540b21a2cfc8d15dbcd1b2940d5fbb517fc5fe568af2ec2775","src/lib.rs":"94b80747ae1037423a2281f2572fc6d15cd7702417974ae3730adccd71c7a300","src/log.rs":"af1d787754706e34d6b8f4ac88aa89078ae9a16970b168ad8dc17cc4180688c2","src/ops.rs":"55cbf9bdccdd854834eba72e8bde3e59a9a4193e65209769a1a6e0d8a320b8f6","src/traits.rs":"1a6e3401bb25088d355041704bd89099d62b51eda94da177e7e860646c52b955","tests/test_capi.rs":"9d949cbdb1c19e229ce4f652999a058c283cf7d5a882a669dbca08b71ac2fb62"},"package":"fdcac95519416d9ec814db2dc40e6293e7da25b906023d93f48b87f0587ab138"}
+{"files":{"Cargo.toml":"5009330f8a03fc0cf4b10540514496db0281bb92541f9850217c5de7d12dc8b7","LICENSE":"8c044baa5d883274736eeece0b955249076c2697b826e576fce59496235b2cf5","src/capi.rs":"300e76bd3901de540b21a2cfc8d15dbcd1b2940d5fbb517fc5fe568af2ec2775","src/lib.rs":"94b80747ae1037423a2281f2572fc6d15cd7702417974ae3730adccd71c7a300","src/log.rs":"704faeb31934dad6bc6d02e01caa85118754209bd559d30d03fcfa5cb8c1603c","src/ops.rs":"55cbf9bdccdd854834eba72e8bde3e59a9a4193e65209769a1a6e0d8a320b8f6","src/traits.rs":"1a6e3401bb25088d355041704bd89099d62b51eda94da177e7e860646c52b955","tests/test_capi.rs":"9d949cbdb1c19e229ce4f652999a058c283cf7d5a882a669dbca08b71ac2fb62"},"package":"0432a0d08c3f9a778a2b0b6214c87ec2eb17e8639eb68baf0686bdafc4fd11f1"}

third_party/rust/cubeb-backend/Cargo.toml

@@ -12,7 +12,7 @@
 
 [package]
 name = "cubeb-backend"
-version = "0.5.0"
+version = "0.5.1"
 authors = ["Dan Glastonbury <dglastonbury@mozilla.com>"]
 description = "Bindings to libcubeb internals to facilitate implementing cubeb backends in rust.\n"
 homepage = "https://github.com/djg/cubeb-rs"

third_party/rust/cubeb-backend/src/log.rs

@@ -9,49 +9,51 @@ macro_rules! cubeb_log_internal {
         #[allow(unused_unsafe)]
         unsafe {
             if $level <= $crate::ffi::g_cubeb_log_level.into() {
-                if let Some(log_callback) = $crate::ffi::g_cubeb_log_callback {
-                    let cstr = ::std::ffi::CString::new(concat!("%s:%d: ", $msg, "\n")).unwrap();
-                    log_callback(cstr.as_ptr(), file!(), line!());
-                }
+                cubeb_log_internal!(__INTERNAL__ $msg);
             }
         }
     };
-    ($level: expr, $fmt: expr, $($arg:tt)+) => {
+    ($level: expr, $fmt: expr, $($arg: expr),+) => {
         #[allow(unused_unsafe)]
         unsafe {
             if $level <= $crate::ffi::g_cubeb_log_level.into() {
-                if let Some(log_callback) = $crate::ffi::g_cubeb_log_callback {
-                    let cstr = ::std::ffi::CString::new(concat!("%s:%d: ", $fmt, "\n")).unwrap();
-                    log_callback(cstr.as_ptr(), file!(), line!(), $($arg)+);
-                }
+                cubeb_log_internal!(__INTERNAL__ format!($fmt, $($arg),*));
             }
         }
+    };
+    (__INTERNAL__ $msg: expr) => {
+        if let Some(log_callback) = $crate::ffi::g_cubeb_log_callback {
+            let cstr = ::std::ffi::CString::new(format!("{}:{}: {}\n", file!(), line!(), $msg)).unwrap();
+            log_callback(cstr.as_ptr());
+        }
     }
 }
 
 #[macro_export]
 macro_rules! cubeb_logv {
     ($msg: expr) => (cubeb_log_internal!($crate::LogLevel::Verbose, $msg));
-    ($fmt: expr, $($arg: tt)+) => (cubeb_log_internal!($crate::LogLevel::Verbose, $fmt, $($arg)*));
+    ($fmt: expr, $($arg: expr),+) => (cubeb_log_internal!($crate::LogLevel::Verbose, $fmt, $($arg),*));
 }
 
 #[macro_export]
 macro_rules! cubeb_log {
     ($msg: expr) => (cubeb_log_internal!($crate::LogLevel::Normal, $msg));
-    ($fmt: expr, $($arg: tt)+) => (cubeb_log_internal!($crate::LogLevel::Normal, $fmt, $($arg)*));
+    ($fmt: expr, $($arg: expr),+) => (cubeb_log_internal!($crate::LogLevel::Normal, $fmt, $($arg),*));
 }
 
 #[cfg(test)]
 mod tests {
     #[test]
     fn test_normal_logging() {
         cubeb_log!("This is log at normal level");
-        cubeb_log!("Formatted log %d", 1);
+        cubeb_log!("{} Formatted log", 1);
+        cubeb_log!("{} Formatted {} log {}", 1, 2, 3);
     }
 
     #[test]
     fn test_verbose_logging() {
         cubeb_logv!("This is a log at verbose level");
-        cubeb_logv!("Formatted log %d", 1);
+        cubeb_logv!("{} Formatted log", 1);
+        cubeb_logv!("{} Formatted {} log {}", 1, 2, 3);
     }
 }