11 files changed, 16 insertions, 17 deletions
diff --git a/Cargo.lock b/Cargo.lock
index 77469cb29b7..ad1bad7d4f3 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -6176,11 +6176,12 @@ checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
 
 [[package]]
 name = "windows"
-version = "0.48.0"
+version = "0.52.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e686886bc078bc1b0b600cac0147aadb815089b6e4da64016cbd754b6342700f"
+checksum = "e48a53791691ab099e5e2ad123536d0fff50652600abaf43bbf952894110d0be"
 dependencies = [
- "windows-targets 0.48.5",
+ "windows-core",
+ "windows-targets 0.52.0",
 ]
 
 [[package]]
diff --git a/compiler/rustc_codegen_ssa/Cargo.toml b/compiler/rustc_codegen_ssa/Cargo.toml
index c4aaf421444..e144b1dc1bd 100644
--- a/compiler/rustc_codegen_ssa/Cargo.toml
+++ b/compiler/rustc_codegen_ssa/Cargo.toml
@@ -51,5 +51,5 @@ default-features = false
 features = ["read_core", "elf", "macho", "pe", "xcoff", "unaligned", "archive", "write"]
 
 [target.'cfg(windows)'.dependencies.windows]
-version = "0.48.0"
+version = "0.52.0"
 features = ["Win32_Globalization"]
diff --git a/compiler/rustc_data_structures/Cargo.toml b/compiler/rustc_data_structures/Cargo.toml
index 0635d8552ae..80b6e72e49b 100644
--- a/compiler/rustc_data_structures/Cargo.toml
+++ b/compiler/rustc_data_structures/Cargo.toml
@@ -33,7 +33,7 @@ tracing = "0.1"
 version = "0.12"
 
 [target.'cfg(windows)'.dependencies.windows]
-version = "0.48.0"
+version = "0.52.0"
 features = [
     "Win32_Foundation",
     "Win32_Storage_FileSystem",
diff --git a/compiler/rustc_data_structures/src/flock/windows.rs b/compiler/rustc_data_structures/src/flock/windows.rs
index da128f464a6..9be1065135a 100644
--- a/compiler/rustc_data_structures/src/flock/windows.rs
+++ b/compiler/rustc_data_structures/src/flock/windows.rs
@@ -69,7 +69,6 @@ impl Lock {
                 &mut overlapped,
             )
         }
-        .ok()
         .map_err(|e| {
             let err = io::Error::from_raw_os_error(e.code().0);
             debug!("failed acquiring file lock: {}", err);
diff --git a/compiler/rustc_data_structures/src/profiling.rs b/compiler/rustc_data_structures/src/profiling.rs
index e29d4811980..2569684df3f 100644
--- a/compiler/rustc_data_structures/src/profiling.rs
+++ b/compiler/rustc_data_structures/src/profiling.rs
@@ -866,16 +866,14 @@ cfg_match! {
             use std::mem;
 
             use windows::{
-                // FIXME: change back to K32GetProcessMemoryInfo when windows crate
-                // updated to 0.49.0+ to drop dependency on psapi.dll
-                Win32::System::ProcessStatus::{GetProcessMemoryInfo, PROCESS_MEMORY_COUNTERS},
+                Win32::System::ProcessStatus::{K32GetProcessMemoryInfo, PROCESS_MEMORY_COUNTERS},
                 Win32::System::Threading::GetCurrentProcess,
             };
 
             let mut pmc = PROCESS_MEMORY_COUNTERS::default();
             let pmc_size = mem::size_of_val(&pmc);
             unsafe {
-                GetProcessMemoryInfo(
+                K32GetProcessMemoryInfo(
                     GetCurrentProcess(),
                     &mut pmc,
                     pmc_size as u32,
diff --git a/compiler/rustc_driver_impl/Cargo.toml b/compiler/rustc_driver_impl/Cargo.toml
index bfdd871455c..242aa06fe3e 100644
--- a/compiler/rustc_driver_impl/Cargo.toml
+++ b/compiler/rustc_driver_impl/Cargo.toml
@@ -60,7 +60,7 @@ libc = "0.2"
 # tidy-alphabetical-end
 
 [target.'cfg(windows)'.dependencies.windows]
-version = "0.48.0"
+version = "0.52.0"
 features = [
     "Win32_System_Diagnostics_Debug",
 ]
diff --git a/compiler/rustc_errors/Cargo.toml b/compiler/rustc_errors/Cargo.toml
index a2d1fd2a924..cc114fdcd8c 100644
--- a/compiler/rustc_errors/Cargo.toml
+++ b/compiler/rustc_errors/Cargo.toml
@@ -30,7 +30,7 @@ unicode-width = "0.1.4"
 # tidy-alphabetical-end
 
 [target.'cfg(windows)'.dependencies.windows]
-version = "0.48.0"
+version = "0.52.0"
 features = [
     "Win32_Foundation",
     "Win32_Security",
diff --git a/compiler/rustc_errors/src/lock.rs b/compiler/rustc_errors/src/lock.rs
index bd5cf49b56b..0aeb511214b 100644
--- a/compiler/rustc_errors/src/lock.rs
+++ b/compiler/rustc_errors/src/lock.rs
@@ -27,7 +27,8 @@ pub fn acquire_global_lock(name: &str) -> Box<dyn Any> {
     impl Drop for Handle {
         fn drop(&mut self) {
             unsafe {
-                CloseHandle(self.0);
+                // FIXME can panic here
+                CloseHandle(self.0).unwrap();
             }
         }
     }
@@ -37,7 +38,8 @@ pub fn acquire_global_lock(name: &str) -> Box<dyn Any> {
     impl Drop for Guard {
         fn drop(&mut self) {
             unsafe {
-                ReleaseMutex((self.0).0);
+                // FIXME can panic here
+                ReleaseMutex((self.0).0).unwrap();
             }
         }
     }
diff --git a/compiler/rustc_session/Cargo.toml b/compiler/rustc_session/Cargo.toml
index ba8f67982f5..721a9275d01 100644
--- a/compiler/rustc_session/Cargo.toml
+++ b/compiler/rustc_session/Cargo.toml
@@ -30,7 +30,7 @@ libc = "0.2"
 # tidy-alphabetical-end
 
 [target.'cfg(windows)'.dependencies.windows]
-version = "0.48.0"
+version = "0.52.0"
 features = [
     "Win32_Foundation",
     "Win32_System_LibraryLoader",
diff --git a/compiler/rustc_session/src/filesearch.rs b/compiler/rustc_session/src/filesearch.rs
index 6e459ac45d3..2456b4b3a15 100644
--- a/compiler/rustc_session/src/filesearch.rs
+++ b/compiler/rustc_session/src/filesearch.rs
@@ -143,7 +143,6 @@ fn current_dll_path() -> Result<PathBuf, String> {
             &mut module,
         )
     }
-    .ok()
     .map_err(|e| e.to_string())?;
 
     let mut filename = vec![0; 1024];
diff --git a/src/tools/compiletest/Cargo.toml b/src/tools/compiletest/Cargo.toml
index 31c6353e675..62d0fcc1a60 100644
--- a/src/tools/compiletest/Cargo.toml
+++ b/src/tools/compiletest/Cargo.toml
@@ -34,7 +34,7 @@ libc = "0.2"
 miow = "0.6"
 
 [target.'cfg(windows)'.dependencies.windows]
-version = "0.48.0"
+version = "0.52.0"
 features = [
     "Win32_Foundation",
     "Win32_System_Diagnostics_Debug",