dashboard: allow 60 minutes for 386 OpenBSD builds

Either 45 minutes wasn't enough, or these things are hanging forever.
Give them even more time so we can figure out which.

For golang/go#49666.

Change-Id: Ia8da50f06d828d508226bf01a3d53e5790a648e6
Reviewed-on: https://go-review.googlesource.com/c/build/+/384294
Trust: Heschi Kreinick <heschi@google.com>
Run-TryBot: Heschi Kreinick <heschi@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Carlos Amedee <carlos@golang.org>

dashboard/builders.go

@@ -237,7 +237,7 @@ var Hosts = map[string]*HostConfig{
 		goBootstrapURLTmpl: "https://storage.googleapis.com/$BUCKET/gobootstrap-openbsd-386-go1_12.tar.gz",
 		Notes:              "OpenBSD 6.8 (with 009_exit syspatch); GCE VM is built from script in build/env/openbsd-386",
 		SSHUsername:        "gopher",
-		DeleteTimeout:      45 * time.Minute, // See golang/go#49666.
+		DeleteTimeout:      60 * time.Minute, // See golang/go#49666.
 	},
 	"host-openbsd-amd64-70": &HostConfig{
 		VMImage:            "openbsd-amd64-70",
@@ -254,7 +254,7 @@ var Hosts = map[string]*HostConfig{
 		goBootstrapURLTmpl: "https://storage.googleapis.com/$BUCKET/gobootstrap-openbsd-386-go1_12.tar.gz",
 		Notes:              "OpenBSD 7.0; GCE VM is built from script in build/env/openbsd-386. n2-highcpu host.",
 		SSHUsername:        "gopher",
-		DeleteTimeout:      45 * time.Minute, // See golang/go#49666.
+		DeleteTimeout:      60 * time.Minute, // See golang/go#49666.
 	},
 	"host-openbsd-386-70-n2d": &HostConfig{
 		// This host config is only for the runtime team to use investigating golang/go#49209.