10 files changed, 24 insertions, 2 deletions
diff --git a/vendor/golang.org/x/sys/plan9/pwd_go15_plan9.go b/vendor/golang.org/x/sys/plan9/pwd_go15_plan9.go
index 87ae9d2..c9b6993 100644
--- a/vendor/golang.org/x/sys/plan9/pwd_go15_plan9.go
+++ b/vendor/golang.org/x/sys/plan9/pwd_go15_plan9.go
@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+//go:build go1.5
 // +build go1.5
 
 package plan9
diff --git a/vendor/golang.org/x/sys/plan9/pwd_plan9.go b/vendor/golang.org/x/sys/plan9/pwd_plan9.go
index c07c798..98bf56b 100644
--- a/vendor/golang.org/x/sys/plan9/pwd_plan9.go
+++ b/vendor/golang.org/x/sys/plan9/pwd_plan9.go
@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+//go:build !go1.5
 // +build !go1.5
 
 package plan9
diff --git a/vendor/golang.org/x/sys/plan9/race.go b/vendor/golang.org/x/sys/plan9/race.go
index 42edd93..62377d2 100644
--- a/vendor/golang.org/x/sys/plan9/race.go
+++ b/vendor/golang.org/x/sys/plan9/race.go
@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+//go:build plan9 && race
 // +build plan9,race
 
 package plan9
diff --git a/vendor/golang.org/x/sys/plan9/race0.go b/vendor/golang.org/x/sys/plan9/race0.go
index c89cf8f..f8da308 100644
--- a/vendor/golang.org/x/sys/plan9/race0.go
+++ b/vendor/golang.org/x/sys/plan9/race0.go
@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+//go:build plan9 && !race
 // +build plan9,!race
 
 package plan9
diff --git a/vendor/golang.org/x/sys/plan9/str.go b/vendor/golang.org/x/sys/plan9/str.go
index 4f7f9ad..55fa8d0 100644
--- a/vendor/golang.org/x/sys/plan9/str.go
+++ b/vendor/golang.org/x/sys/plan9/str.go
@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+//go:build plan9
 // +build plan9
 
 package plan9
diff --git a/vendor/golang.org/x/sys/plan9/syscall.go b/vendor/golang.org/x/sys/plan9/syscall.go
index e7363a2..a25223b 100644
--- a/vendor/golang.org/x/sys/plan9/syscall.go
+++ b/vendor/golang.org/x/sys/plan9/syscall.go
@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+//go:build plan9
 // +build plan9
 
 // Package plan9 contains an interface to the low-level operating system
@@ -112,5 +113,6 @@ func (tv *Timeval) Nano() int64 {
 
 // use is a no-op, but the compiler cannot see that it is.
 // Calling use(p) ensures that p is kept live until that point.
+//
 //go:noescape
 func use(p unsafe.Pointer)
diff --git a/vendor/golang.org/x/sys/plan9/syscall_plan9.go b/vendor/golang.org/x/sys/plan9/syscall_plan9.go
index 84e1471..d079d81 100644
--- a/vendor/golang.org/x/sys/plan9/syscall_plan9.go
+++ b/vendor/golang.org/x/sys/plan9/syscall_plan9.go
@@ -115,6 +115,7 @@ func Write(fd int, p []byte) (n int, err error) {
 var ioSync int64
 
 //sys	fd2path(fd int, buf []byte) (err error)
+
 func Fd2path(fd int) (path string, err error) {
 	var buf [512]byte
 
@@ -126,14 +127,17 @@ func Fd2path(fd int) (path string, err error) {
 }
 
 //sys	pipe(p *[2]int32) (err error)
+
 func Pipe(p []int) (err error) {
 	if len(p) != 2 {
 		return syscall.ErrorString("bad arg in system call")
 	}
 	var pp [2]int32
 	err = pipe(&pp)
-	p[0] = int(pp[0])
-	p[1] = int(pp[1])
+	if err == nil {
+		p[0] = int(pp[0])
+		p[1] = int(pp[1])
+	}
 	return
 }
 
@@ -178,6 +182,7 @@ func (w Waitmsg) ExitStatus() int {
 }
 
 //sys	await(s []byte) (n int, err error)
+
 func Await(w *Waitmsg) (err error) {
 	var buf [512]byte
 	var f [5][]byte
@@ -299,42 +304,49 @@ func Getgroups() (gids []int, err error) {
 }
 
 //sys	open(path string, mode int) (fd int, err error)
+
 func Open(path string, mode int) (fd int, err error) {
 	fixwd()
 	return open(path, mode)
 }
 
 //sys	create(path string, mode int, perm uint32) (fd int, err error)
+
 func Create(path string, mode int, perm uint32) (fd int, err error) {
 	fixwd()
 	return create(path, mode, perm)
 }
 
 //sys	remove(path string) (err error)
+
 func Remove(path string) error {
 	fixwd()
 	return remove(path)
 }
 
 //sys	stat(path string, edir []byte) (n int, err error)
+
 func Stat(path string, edir []byte) (n int, err error) {
 	fixwd()
 	return stat(path, edir)
 }
 
 //sys	bind(name string, old string, flag int) (err error)
+
 func Bind(name string, old string, flag int) (err error) {
 	fixwd()
 	return bind(name, old, flag)
 }
 
 //sys	mount(fd int, afd int, old string, flag int, aname string) (err error)
+
 func Mount(fd int, afd int, old string, flag int, aname string) (err error) {
 	fixwd()
 	return mount(fd, afd, old, flag, aname)
 }
 
 //sys	wstat(path string, edir []byte) (err error)
+
 func Wstat(path string, edir []byte) (err error) {
 	fixwd()
 	return wstat(path, edir)
diff --git a/vendor/golang.org/x/sys/plan9/zsyscall_plan9_386.go b/vendor/golang.org/x/sys/plan9/zsyscall_plan9_386.go
index 6819bc2..3f40b9b 100644
--- a/vendor/golang.org/x/sys/plan9/zsyscall_plan9_386.go
+++ b/vendor/golang.org/x/sys/plan9/zsyscall_plan9_386.go
@@ -1,6 +1,7 @@
 // go run mksyscall.go -l32 -plan9 -tags plan9,386 syscall_plan9.go
 // Code generated by the command above; see README.md. DO NOT EDIT.
 
+//go:build plan9 && 386
 // +build plan9,386
 
 package plan9
diff --git a/vendor/golang.org/x/sys/plan9/zsyscall_plan9_amd64.go b/vendor/golang.org/x/sys/plan9/zsyscall_plan9_amd64.go
index 418abbb..0e6a96a 100644
--- a/vendor/golang.org/x/sys/plan9/zsyscall_plan9_amd64.go
+++ b/vendor/golang.org/x/sys/plan9/zsyscall_plan9_amd64.go
@@ -1,6 +1,7 @@
 // go run mksyscall.go -l32 -plan9 -tags plan9,amd64 syscall_plan9.go
 // Code generated by the command above; see README.md. DO NOT EDIT.
 
+//go:build plan9 && amd64
 // +build plan9,amd64
 
 package plan9
diff --git a/vendor/golang.org/x/sys/plan9/zsyscall_plan9_arm.go b/vendor/golang.org/x/sys/plan9/zsyscall_plan9_arm.go
index 3e8a1a5..244c501 100644
--- a/vendor/golang.org/x/sys/plan9/zsyscall_plan9_arm.go
+++ b/vendor/golang.org/x/sys/plan9/zsyscall_plan9_arm.go
@@ -1,6 +1,7 @@
 // go run mksyscall.go -l32 -plan9 -tags plan9,arm syscall_plan9.go
 // Code generated by the command above; see README.md. DO NOT EDIT.
 
+//go:build plan9 && arm
 // +build plan9,arm
 
 package plan9