x/tools/gopls: getting code actions from "go" in vendor directory when i save file and save slowly

[cgyFight]

What version of Go are you using (go version)?

$ go version
1.16.2

Does this issue reproduce with the latest release?

yes

What operating system and processor architecture are you using (go env)?

mac

go env Output

$ go env
```
GO111MODULE=""
GOARCH="amd64"
GOBIN=""
GOEXE=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="darwin"
GOINSECURE=""
GONOPROXY=""
GONOSUMDB=""
GOOS="darwin"
GOPRIVATE=""
GOPROXY="https://goproxy.cn,direct"
GOROOT="/usr/local/go"
GOSUMDB="sum.golang.org"
GOTMPDIR=""
GOTOOLDIR="/usr/local/go/pkg/tool/darwin_amd64"
GOVCS=""
GOVERSION="go1.16.2"
GCCGO="gccgo"
AR="ar"
CC="clang"
CXX="clang++"
CGO_ENABLED="1"
GOMOD="/dev/null"
CGO_CFLAGS="-g -O2"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-g -O2"
CGO_FFLAGS="-g -O2"
CGO_LDFLAGS="-g -O2"
PKG_CONFIG="pkg-config"
GOGCCFLAGS="-fPIC -arch x86_64 -m64 -pthread -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -fdebug-prefix-map=/var/folders/rf/1744zvy931d53cz_b2wd2sn11r4whl/T/go-build369641151=/tmp/go-build -gno-record-gcc-switches -fno-common"
```

What did you do?

when save my modify file in vendor dir, frequentyly pop getting code actions from "go" in vendor directory, and very slowly

but if i do that not in vendor dir, it save fast and not pop the hint

i try to set GO111MODULE to off/on/auto in vscode like that:

"go.toolsEnvVars": {
        "GO111MODULE": "off"
        // "GO111MODULE": "auto"
    },

but none of the problems are solved

What did you expect to see?

save fast in vendor dir

What did you see instead?

[hyangah]

Transferring to vscode-go repo.

@cgyFight Please capture the gopls log following the instruction and share it with us. Thanks!

[cgyFight]

@hyangah
i try to that "The gopls log can be found by navigating to View -> Output. There will be a drop-down menu titled Tasks in the top-right corner. Select the gopls (server) item, which will contain the gopls logs."

but nothing get in the view:

[stamblerre]

Please click the "Remote - SSH" drop down on the right and select "gopls (server)".

[gopherbot]

Timed out in state WaitingForInfo. Closing.

(I am just a bot, though. Please speak up if this is a mistake or you have the requested information.)