1 files changed, 40 insertions, 10 deletions
diff --git a/src/etc/completions/x.py.ps1 b/src/etc/completions/x.py.ps1
index 2fed1be72..dabc3b16e 100644
--- a/src/etc/completions/x.py.ps1
+++ b/src/etc/completions/x.py.ps1
@@ -51,12 +51,14 @@ Register-ArgumentCompleter -Native -CommandName 'x.py' -ScriptBlock {
             [CompletionResult]::new('--incremental', 'incremental', [CompletionResultType]::ParameterName, 'use incremental compilation')
             [CompletionResult]::new('--include-default-paths', 'include-default-paths', [CompletionResultType]::ParameterName, 'include default paths in addition to the provided ones')
             [CompletionResult]::new('--dry-run', 'dry-run', [CompletionResultType]::ParameterName, 'dry run; don''t build anything')
+            [CompletionResult]::new('--dump-bootstrap-shims', 'dump-bootstrap-shims', [CompletionResultType]::ParameterName, 'Indicates whether to dump the work done from bootstrap shims')
             [CompletionResult]::new('--json-output', 'json-output', [CompletionResultType]::ParameterName, 'use message-format=json')
+            [CompletionResult]::new('--bypass-bootstrap-lock', 'bypass-bootstrap-lock', [CompletionResultType]::ParameterName, 'Bootstrap uses this value to decide whether it should bypass locking the build process. This is rarely needed (e.g., compiling the std library for different targets in parallel)')
             [CompletionResult]::new('--llvm-profile-generate', 'llvm-profile-generate', [CompletionResultType]::ParameterName, 'generate PGO profile with llvm built for rustc')
             [CompletionResult]::new('--enable-bolt-settings', 'enable-bolt-settings', [CompletionResultType]::ParameterName, 'Enable BOLT link flags')
             [CompletionResult]::new('--skip-stage0-validation', 'skip-stage0-validation', [CompletionResultType]::ParameterName, 'Skip stage0 compiler validation')
-            [CompletionResult]::new('-h', 'h', [CompletionResultType]::ParameterName, 'Print help')
-            [CompletionResult]::new('--help', 'help', [CompletionResultType]::ParameterName, 'Print help')
+            [CompletionResult]::new('-h', 'h', [CompletionResultType]::ParameterName, 'Print help (see more with ''--help'')')
+            [CompletionResult]::new('--help', 'help', [CompletionResultType]::ParameterName, 'Print help (see more with ''--help'')')
             [CompletionResult]::new('build', 'build', [CompletionResultType]::ParameterValue, 'Compile either the compiler or libraries')
             [CompletionResult]::new('check', 'check', [CompletionResultType]::ParameterValue, 'Compile either the compiler or libraries, using cargo check')
             [CompletionResult]::new('clippy', 'clippy', [CompletionResultType]::ParameterValue, 'Run Clippy (uses rustup/cargo-installed clippy binary)')
@@ -104,7 +106,9 @@ Register-ArgumentCompleter -Native -CommandName 'x.py' -ScriptBlock {
             [CompletionResult]::new('--incremental', 'incremental', [CompletionResultType]::ParameterName, 'use incremental compilation')
             [CompletionResult]::new('--include-default-paths', 'include-default-paths', [CompletionResultType]::ParameterName, 'include default paths in addition to the provided ones')
             [CompletionResult]::new('--dry-run', 'dry-run', [CompletionResultType]::ParameterName, 'dry run; don''t build anything')
+            [CompletionResult]::new('--dump-bootstrap-shims', 'dump-bootstrap-shims', [CompletionResultType]::ParameterName, 'Indicates whether to dump the work done from bootstrap shims')
             [CompletionResult]::new('--json-output', 'json-output', [CompletionResultType]::ParameterName, 'use message-format=json')
+            [CompletionResult]::new('--bypass-bootstrap-lock', 'bypass-bootstrap-lock', [CompletionResultType]::ParameterName, 'Bootstrap uses this value to decide whether it should bypass locking the build process. This is rarely needed (e.g., compiling the std library for different targets in parallel)')
             [CompletionResult]::new('--llvm-profile-generate', 'llvm-profile-generate', [CompletionResultType]::ParameterName, 'generate PGO profile with llvm built for rustc')
             [CompletionResult]::new('--enable-bolt-settings', 'enable-bolt-settings', [CompletionResultType]::ParameterName, 'Enable BOLT link flags')
             [CompletionResult]::new('--skip-stage0-validation', 'skip-stage0-validation', [CompletionResultType]::ParameterName, 'Skip stage0 compiler validation')
@@ -144,7 +148,9 @@ Register-ArgumentCompleter -Native -CommandName 'x.py' -ScriptBlock {
             [CompletionResult]::new('--incremental', 'incremental', [CompletionResultType]::ParameterName, 'use incremental compilation')
             [CompletionResult]::new('--include-default-paths', 'include-default-paths', [CompletionResultType]::ParameterName, 'include default paths in addition to the provided ones')
             [CompletionResult]::new('--dry-run', 'dry-run', [CompletionResultType]::ParameterName, 'dry run; don''t build anything')
+            [CompletionResult]::new('--dump-bootstrap-shims', 'dump-bootstrap-shims', [CompletionResultType]::ParameterName, 'Indicates whether to dump the work done from bootstrap shims')
             [CompletionResult]::new('--json-output', 'json-output', [CompletionResultType]::ParameterName, 'use message-format=json')
+            [CompletionResult]::new('--bypass-bootstrap-lock', 'bypass-bootstrap-lock', [CompletionResultType]::ParameterName, 'Bootstrap uses this value to decide whether it should bypass locking the build process. This is rarely needed (e.g., compiling the std library for different targets in parallel)')
             [CompletionResult]::new('--llvm-profile-generate', 'llvm-profile-generate', [CompletionResultType]::ParameterName, 'generate PGO profile with llvm built for rustc')
             [CompletionResult]::new('--enable-bolt-settings', 'enable-bolt-settings', [CompletionResultType]::ParameterName, 'Enable BOLT link flags')
             [CompletionResult]::new('--skip-stage0-validation', 'skip-stage0-validation', [CompletionResultType]::ParameterName, 'Skip stage0 compiler validation')
@@ -188,7 +194,9 @@ Register-ArgumentCompleter -Native -CommandName 'x.py' -ScriptBlock {
             [CompletionResult]::new('--incremental', 'incremental', [CompletionResultType]::ParameterName, 'use incremental compilation')
             [CompletionResult]::new('--include-default-paths', 'include-default-paths', [CompletionResultType]::ParameterName, 'include default paths in addition to the provided ones')
             [CompletionResult]::new('--dry-run', 'dry-run', [CompletionResultType]::ParameterName, 'dry run; don''t build anything')
+            [CompletionResult]::new('--dump-bootstrap-shims', 'dump-bootstrap-shims', [CompletionResultType]::ParameterName, 'Indicates whether to dump the work done from bootstrap shims')
             [CompletionResult]::new('--json-output', 'json-output', [CompletionResultType]::ParameterName, 'use message-format=json')
+            [CompletionResult]::new('--bypass-bootstrap-lock', 'bypass-bootstrap-lock', [CompletionResultType]::ParameterName, 'Bootstrap uses this value to decide whether it should bypass locking the build process. This is rarely needed (e.g., compiling the std library for different targets in parallel)')
             [CompletionResult]::new('--llvm-profile-generate', 'llvm-profile-generate', [CompletionResultType]::ParameterName, 'generate PGO profile with llvm built for rustc')
             [CompletionResult]::new('--enable-bolt-settings', 'enable-bolt-settings', [CompletionResultType]::ParameterName, 'Enable BOLT link flags')
             [CompletionResult]::new('--skip-stage0-validation', 'skip-stage0-validation', [CompletionResultType]::ParameterName, 'Skip stage0 compiler validation')
@@ -227,7 +235,9 @@ Register-ArgumentCompleter -Native -CommandName 'x.py' -ScriptBlock {
             [CompletionResult]::new('--incremental', 'incremental', [CompletionResultType]::ParameterName, 'use incremental compilation')
             [CompletionResult]::new('--include-default-paths', 'include-default-paths', [CompletionResultType]::ParameterName, 'include default paths in addition to the provided ones')
             [CompletionResult]::new('--dry-run', 'dry-run', [CompletionResultType]::ParameterName, 'dry run; don''t build anything')
+            [CompletionResult]::new('--dump-bootstrap-shims', 'dump-bootstrap-shims', [CompletionResultType]::ParameterName, 'Indicates whether to dump the work done from bootstrap shims')
             [CompletionResult]::new('--json-output', 'json-output', [CompletionResultType]::ParameterName, 'use message-format=json')
+            [CompletionResult]::new('--bypass-bootstrap-lock', 'bypass-bootstrap-lock', [CompletionResultType]::ParameterName, 'Bootstrap uses this value to decide whether it should bypass locking the build process. This is rarely needed (e.g., compiling the std library for different targets in parallel)')
             [CompletionResult]::new('--llvm-profile-generate', 'llvm-profile-generate', [CompletionResultType]::ParameterName, 'generate PGO profile with llvm built for rustc')
             [CompletionResult]::new('--enable-bolt-settings', 'enable-bolt-settings', [CompletionResultType]::ParameterName, 'Enable BOLT link flags')
             [CompletionResult]::new('--skip-stage0-validation', 'skip-stage0-validation', [CompletionResultType]::ParameterName, 'Skip stage0 compiler validation')
@@ -267,7 +277,9 @@ Register-ArgumentCompleter -Native -CommandName 'x.py' -ScriptBlock {
             [CompletionResult]::new('--incremental', 'incremental', [CompletionResultType]::ParameterName, 'use incremental compilation')
             [CompletionResult]::new('--include-default-paths', 'include-default-paths', [CompletionResultType]::ParameterName, 'include default paths in addition to the provided ones')
             [CompletionResult]::new('--dry-run', 'dry-run', [CompletionResultType]::ParameterName, 'dry run; don''t build anything')
+            [CompletionResult]::new('--dump-bootstrap-shims', 'dump-bootstrap-shims', [CompletionResultType]::ParameterName, 'Indicates whether to dump the work done from bootstrap shims')
             [CompletionResult]::new('--json-output', 'json-output', [CompletionResultType]::ParameterName, 'use message-format=json')
+            [CompletionResult]::new('--bypass-bootstrap-lock', 'bypass-bootstrap-lock', [CompletionResultType]::ParameterName, 'Bootstrap uses this value to decide whether it should bypass locking the build process. This is rarely needed (e.g., compiling the std library for different targets in parallel)')
             [CompletionResult]::new('--llvm-profile-generate', 'llvm-profile-generate', [CompletionResultType]::ParameterName, 'generate PGO profile with llvm built for rustc')
             [CompletionResult]::new('--enable-bolt-settings', 'enable-bolt-settings', [CompletionResultType]::ParameterName, 'Enable BOLT link flags')
             [CompletionResult]::new('--skip-stage0-validation', 'skip-stage0-validation', [CompletionResultType]::ParameterName, 'Skip stage0 compiler validation')
@@ -308,7 +320,9 @@ Register-ArgumentCompleter -Native -CommandName 'x.py' -ScriptBlock {
             [CompletionResult]::new('--incremental', 'incremental', [CompletionResultType]::ParameterName, 'use incremental compilation')
             [CompletionResult]::new('--include-default-paths', 'include-default-paths', [CompletionResultType]::ParameterName, 'include default paths in addition to the provided ones')
             [CompletionResult]::new('--dry-run', 'dry-run', [CompletionResultType]::ParameterName, 'dry run; don''t build anything')
+            [CompletionResult]::new('--dump-bootstrap-shims', 'dump-bootstrap-shims', [CompletionResultType]::ParameterName, 'Indicates whether to dump the work done from bootstrap shims')
             [CompletionResult]::new('--json-output', 'json-output', [CompletionResultType]::ParameterName, 'use message-format=json')
+            [CompletionResult]::new('--bypass-bootstrap-lock', 'bypass-bootstrap-lock', [CompletionResultType]::ParameterName, 'Bootstrap uses this value to decide whether it should bypass locking the build process. This is rarely needed (e.g., compiling the std library for different targets in parallel)')
             [CompletionResult]::new('--llvm-profile-generate', 'llvm-profile-generate', [CompletionResultType]::ParameterName, 'generate PGO profile with llvm built for rustc')
             [CompletionResult]::new('--enable-bolt-settings', 'enable-bolt-settings', [CompletionResultType]::ParameterName, 'Enable BOLT link flags')
             [CompletionResult]::new('--skip-stage0-validation', 'skip-stage0-validation', [CompletionResultType]::ParameterName, 'Skip stage0 compiler validation')
@@ -360,7 +374,9 @@ Register-ArgumentCompleter -Native -CommandName 'x.py' -ScriptBlock {
             [CompletionResult]::new('--incremental', 'incremental', [CompletionResultType]::ParameterName, 'use incremental compilation')
             [CompletionResult]::new('--include-default-paths', 'include-default-paths', [CompletionResultType]::ParameterName, 'include default paths in addition to the provided ones')
             [CompletionResult]::new('--dry-run', 'dry-run', [CompletionResultType]::ParameterName, 'dry run; don''t build anything')
+            [CompletionResult]::new('--dump-bootstrap-shims', 'dump-bootstrap-shims', [CompletionResultType]::ParameterName, 'Indicates whether to dump the work done from bootstrap shims')
             [CompletionResult]::new('--json-output', 'json-output', [CompletionResultType]::ParameterName, 'use message-format=json')
+            [CompletionResult]::new('--bypass-bootstrap-lock', 'bypass-bootstrap-lock', [CompletionResultType]::ParameterName, 'Bootstrap uses this value to decide whether it should bypass locking the build process. This is rarely needed (e.g., compiling the std library for different targets in parallel)')
             [CompletionResult]::new('--llvm-profile-generate', 'llvm-profile-generate', [CompletionResultType]::ParameterName, 'generate PGO profile with llvm built for rustc')
             [CompletionResult]::new('--enable-bolt-settings', 'enable-bolt-settings', [CompletionResultType]::ParameterName, 'Enable BOLT link flags')
             [CompletionResult]::new('--skip-stage0-validation', 'skip-stage0-validation', [CompletionResultType]::ParameterName, 'Skip stage0 compiler validation')
@@ -400,12 +416,14 @@ Register-ArgumentCompleter -Native -CommandName 'x.py' -ScriptBlock {
             [CompletionResult]::new('--incremental', 'incremental', [CompletionResultType]::ParameterName, 'use incremental compilation')
             [CompletionResult]::new('--include-default-paths', 'include-default-paths', [CompletionResultType]::ParameterName, 'include default paths in addition to the provided ones')
             [CompletionResult]::new('--dry-run', 'dry-run', [CompletionResultType]::ParameterName, 'dry run; don''t build anything')
+            [CompletionResult]::new('--dump-bootstrap-shims', 'dump-bootstrap-shims', [CompletionResultType]::ParameterName, 'Indicates whether to dump the work done from bootstrap shims')
             [CompletionResult]::new('--json-output', 'json-output', [CompletionResultType]::ParameterName, 'use message-format=json')
+            [CompletionResult]::new('--bypass-bootstrap-lock', 'bypass-bootstrap-lock', [CompletionResultType]::ParameterName, 'Bootstrap uses this value to decide whether it should bypass locking the build process. This is rarely needed (e.g., compiling the std library for different targets in parallel)')
             [CompletionResult]::new('--llvm-profile-generate', 'llvm-profile-generate', [CompletionResultType]::ParameterName, 'generate PGO profile with llvm built for rustc')
             [CompletionResult]::new('--enable-bolt-settings', 'enable-bolt-settings', [CompletionResultType]::ParameterName, 'Enable BOLT link flags')
             [CompletionResult]::new('--skip-stage0-validation', 'skip-stage0-validation', [CompletionResultType]::ParameterName, 'Skip stage0 compiler validation')
-            [CompletionResult]::new('-h', 'h', [CompletionResultType]::ParameterName, 'Print help')
-            [CompletionResult]::new('--help', 'help', [CompletionResultType]::ParameterName, 'Print help')
+            [CompletionResult]::new('-h', 'h', [CompletionResultType]::ParameterName, 'Print help (see more with ''--help'')')
+            [CompletionResult]::new('--help', 'help', [CompletionResultType]::ParameterName, 'Print help (see more with ''--help'')')
             break
         }
         'x.py;clean' {
@@ -440,12 +458,14 @@ Register-ArgumentCompleter -Native -CommandName 'x.py' -ScriptBlock {
             [CompletionResult]::new('--incremental', 'incremental', [CompletionResultType]::ParameterName, 'use incremental compilation')
             [CompletionResult]::new('--include-default-paths', 'include-default-paths', [CompletionResultType]::ParameterName, 'include default paths in addition to the provided ones')
             [CompletionResult]::new('--dry-run', 'dry-run', [CompletionResultType]::ParameterName, 'dry run; don''t build anything')
+            [CompletionResult]::new('--dump-bootstrap-shims', 'dump-bootstrap-shims', [CompletionResultType]::ParameterName, 'Indicates whether to dump the work done from bootstrap shims')
             [CompletionResult]::new('--json-output', 'json-output', [CompletionResultType]::ParameterName, 'use message-format=json')
+            [CompletionResult]::new('--bypass-bootstrap-lock', 'bypass-bootstrap-lock', [CompletionResultType]::ParameterName, 'Bootstrap uses this value to decide whether it should bypass locking the build process. This is rarely needed (e.g., compiling the std library for different targets in parallel)')
             [CompletionResult]::new('--llvm-profile-generate', 'llvm-profile-generate', [CompletionResultType]::ParameterName, 'generate PGO profile with llvm built for rustc')
             [CompletionResult]::new('--enable-bolt-settings', 'enable-bolt-settings', [CompletionResultType]::ParameterName, 'Enable BOLT link flags')
             [CompletionResult]::new('--skip-stage0-validation', 'skip-stage0-validation', [CompletionResultType]::ParameterName, 'Skip stage0 compiler validation')
-            [CompletionResult]::new('-h', 'h', [CompletionResultType]::ParameterName, 'Print help')
-            [CompletionResult]::new('--help', 'help', [CompletionResultType]::ParameterName, 'Print help')
+            [CompletionResult]::new('-h', 'h', [CompletionResultType]::ParameterName, 'Print help (see more with ''--help'')')
+            [CompletionResult]::new('--help', 'help', [CompletionResultType]::ParameterName, 'Print help (see more with ''--help'')')
             break
         }
         'x.py;dist' {
@@ -479,12 +499,14 @@ Register-ArgumentCompleter -Native -CommandName 'x.py' -ScriptBlock {
             [CompletionResult]::new('--incremental', 'incremental', [CompletionResultType]::ParameterName, 'use incremental compilation')
             [CompletionResult]::new('--include-default-paths', 'include-default-paths', [CompletionResultType]::ParameterName, 'include default paths in addition to the provided ones')
             [CompletionResult]::new('--dry-run', 'dry-run', [CompletionResultType]::ParameterName, 'dry run; don''t build anything')
+            [CompletionResult]::new('--dump-bootstrap-shims', 'dump-bootstrap-shims', [CompletionResultType]::ParameterName, 'Indicates whether to dump the work done from bootstrap shims')
             [CompletionResult]::new('--json-output', 'json-output', [CompletionResultType]::ParameterName, 'use message-format=json')
+            [CompletionResult]::new('--bypass-bootstrap-lock', 'bypass-bootstrap-lock', [CompletionResultType]::ParameterName, 'Bootstrap uses this value to decide whether it should bypass locking the build process. This is rarely needed (e.g., compiling the std library for different targets in parallel)')
             [CompletionResult]::new('--llvm-profile-generate', 'llvm-profile-generate', [CompletionResultType]::ParameterName, 'generate PGO profile with llvm built for rustc')
             [CompletionResult]::new('--enable-bolt-settings', 'enable-bolt-settings', [CompletionResultType]::ParameterName, 'Enable BOLT link flags')
             [CompletionResult]::new('--skip-stage0-validation', 'skip-stage0-validation', [CompletionResultType]::ParameterName, 'Skip stage0 compiler validation')
-            [CompletionResult]::new('-h', 'h', [CompletionResultType]::ParameterName, 'Print help')
-            [CompletionResult]::new('--help', 'help', [CompletionResultType]::ParameterName, 'Print help')
+            [CompletionResult]::new('-h', 'h', [CompletionResultType]::ParameterName, 'Print help (see more with ''--help'')')
+            [CompletionResult]::new('--help', 'help', [CompletionResultType]::ParameterName, 'Print help (see more with ''--help'')')
             break
         }
         'x.py;install' {
@@ -518,12 +540,14 @@ Register-ArgumentCompleter -Native -CommandName 'x.py' -ScriptBlock {
             [CompletionResult]::new('--incremental', 'incremental', [CompletionResultType]::ParameterName, 'use incremental compilation')
             [CompletionResult]::new('--include-default-paths', 'include-default-paths', [CompletionResultType]::ParameterName, 'include default paths in addition to the provided ones')
             [CompletionResult]::new('--dry-run', 'dry-run', [CompletionResultType]::ParameterName, 'dry run; don''t build anything')
+            [CompletionResult]::new('--dump-bootstrap-shims', 'dump-bootstrap-shims', [CompletionResultType]::ParameterName, 'Indicates whether to dump the work done from bootstrap shims')
             [CompletionResult]::new('--json-output', 'json-output', [CompletionResultType]::ParameterName, 'use message-format=json')
+            [CompletionResult]::new('--bypass-bootstrap-lock', 'bypass-bootstrap-lock', [CompletionResultType]::ParameterName, 'Bootstrap uses this value to decide whether it should bypass locking the build process. This is rarely needed (e.g., compiling the std library for different targets in parallel)')
             [CompletionResult]::new('--llvm-profile-generate', 'llvm-profile-generate', [CompletionResultType]::ParameterName, 'generate PGO profile with llvm built for rustc')
             [CompletionResult]::new('--enable-bolt-settings', 'enable-bolt-settings', [CompletionResultType]::ParameterName, 'Enable BOLT link flags')
             [CompletionResult]::new('--skip-stage0-validation', 'skip-stage0-validation', [CompletionResultType]::ParameterName, 'Skip stage0 compiler validation')
-            [CompletionResult]::new('-h', 'h', [CompletionResultType]::ParameterName, 'Print help')
-            [CompletionResult]::new('--help', 'help', [CompletionResultType]::ParameterName, 'Print help')
+            [CompletionResult]::new('-h', 'h', [CompletionResultType]::ParameterName, 'Print help (see more with ''--help'')')
+            [CompletionResult]::new('--help', 'help', [CompletionResultType]::ParameterName, 'Print help (see more with ''--help'')')
             break
         }
         'x.py;run' {
@@ -558,7 +582,9 @@ Register-ArgumentCompleter -Native -CommandName 'x.py' -ScriptBlock {
             [CompletionResult]::new('--incremental', 'incremental', [CompletionResultType]::ParameterName, 'use incremental compilation')
             [CompletionResult]::new('--include-default-paths', 'include-default-paths', [CompletionResultType]::ParameterName, 'include default paths in addition to the provided ones')
             [CompletionResult]::new('--dry-run', 'dry-run', [CompletionResultType]::ParameterName, 'dry run; don''t build anything')
+            [CompletionResult]::new('--dump-bootstrap-shims', 'dump-bootstrap-shims', [CompletionResultType]::ParameterName, 'Indicates whether to dump the work done from bootstrap shims')
             [CompletionResult]::new('--json-output', 'json-output', [CompletionResultType]::ParameterName, 'use message-format=json')
+            [CompletionResult]::new('--bypass-bootstrap-lock', 'bypass-bootstrap-lock', [CompletionResultType]::ParameterName, 'Bootstrap uses this value to decide whether it should bypass locking the build process. This is rarely needed (e.g., compiling the std library for different targets in parallel)')
             [CompletionResult]::new('--llvm-profile-generate', 'llvm-profile-generate', [CompletionResultType]::ParameterName, 'generate PGO profile with llvm built for rustc')
             [CompletionResult]::new('--enable-bolt-settings', 'enable-bolt-settings', [CompletionResultType]::ParameterName, 'Enable BOLT link flags')
             [CompletionResult]::new('--skip-stage0-validation', 'skip-stage0-validation', [CompletionResultType]::ParameterName, 'Skip stage0 compiler validation')
@@ -597,7 +623,9 @@ Register-ArgumentCompleter -Native -CommandName 'x.py' -ScriptBlock {
             [CompletionResult]::new('--incremental', 'incremental', [CompletionResultType]::ParameterName, 'use incremental compilation')
             [CompletionResult]::new('--include-default-paths', 'include-default-paths', [CompletionResultType]::ParameterName, 'include default paths in addition to the provided ones')
             [CompletionResult]::new('--dry-run', 'dry-run', [CompletionResultType]::ParameterName, 'dry run; don''t build anything')
+            [CompletionResult]::new('--dump-bootstrap-shims', 'dump-bootstrap-shims', [CompletionResultType]::ParameterName, 'Indicates whether to dump the work done from bootstrap shims')
             [CompletionResult]::new('--json-output', 'json-output', [CompletionResultType]::ParameterName, 'use message-format=json')
+            [CompletionResult]::new('--bypass-bootstrap-lock', 'bypass-bootstrap-lock', [CompletionResultType]::ParameterName, 'Bootstrap uses this value to decide whether it should bypass locking the build process. This is rarely needed (e.g., compiling the std library for different targets in parallel)')
             [CompletionResult]::new('--llvm-profile-generate', 'llvm-profile-generate', [CompletionResultType]::ParameterName, 'generate PGO profile with llvm built for rustc')
             [CompletionResult]::new('--enable-bolt-settings', 'enable-bolt-settings', [CompletionResultType]::ParameterName, 'Enable BOLT link flags')
             [CompletionResult]::new('--skip-stage0-validation', 'skip-stage0-validation', [CompletionResultType]::ParameterName, 'Skip stage0 compiler validation')
@@ -637,7 +665,9 @@ Register-ArgumentCompleter -Native -CommandName 'x.py' -ScriptBlock {
             [CompletionResult]::new('--incremental', 'incremental', [CompletionResultType]::ParameterName, 'use incremental compilation')
             [CompletionResult]::new('--include-default-paths', 'include-default-paths', [CompletionResultType]::ParameterName, 'include default paths in addition to the provided ones')
             [CompletionResult]::new('--dry-run', 'dry-run', [CompletionResultType]::ParameterName, 'dry run; don''t build anything')
+            [CompletionResult]::new('--dump-bootstrap-shims', 'dump-bootstrap-shims', [CompletionResultType]::ParameterName, 'Indicates whether to dump the work done from bootstrap shims')
             [CompletionResult]::new('--json-output', 'json-output', [CompletionResultType]::ParameterName, 'use message-format=json')
+            [CompletionResult]::new('--bypass-bootstrap-lock', 'bypass-bootstrap-lock', [CompletionResultType]::ParameterName, 'Bootstrap uses this value to decide whether it should bypass locking the build process. This is rarely needed (e.g., compiling the std library for different targets in parallel)')
             [CompletionResult]::new('--llvm-profile-generate', 'llvm-profile-generate', [CompletionResultType]::ParameterName, 'generate PGO profile with llvm built for rustc')
             [CompletionResult]::new('--enable-bolt-settings', 'enable-bolt-settings', [CompletionResultType]::ParameterName, 'Enable BOLT link flags')
             [CompletionResult]::new('--skip-stage0-validation', 'skip-stage0-validation', [CompletionResultType]::ParameterName, 'Skip stage0 compiler validation')