x/tools/gopls: panic with latest master

[primalmotion]

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

$ go version
go version go1.13.4 darwin/amd64

Does this issue reproduce with the latest release?

it happens with latest master. it works on 660eba4da30b912b1dd4b8279a97ff2a6ea1da25

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

go env Output

$ go env
go env
GO111MODULE="auto"
GOARCH="amd64"
GOBIN="/Users/tonio/Documents/Aporeto/workspace/code/go/bin"
GOCACHE="/Users/tonio/Library/Caches/go-build"
GOENV="/Users/tonio/Library/Application Support/go/env"
GOEXE=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="darwin"
GONOPROXY="go.aporeto.io,github.com/aporeto-inc"
GONOSUMDB="go.aporeto.io,github.com/aporeto-inc"
GOOS="darwin"
GOPATH="/Users/tonio/Documents/Aporeto/workspace/code/go"
GOPRIVATE="go.aporeto.io,github.com/aporeto-inc"
GOPROXY="https://proxy.golang.org,direct"
GOROOT="/usr/local/Cellar/go/1.13.4/libexec"
GOSUMDB="sum.golang.org"
GOTMPDIR=""
GOTOOLDIR="/usr/local/Cellar/go/1.13.4/libexec/pkg/tool/darwin_amd64"
GCCGO="gccgo"
AR="ar"
CC="clang"
CXX="clang++"
CGO_ENABLED="1"
GOMOD="/Users/tonio/Documents/Aporeto/workspace/code/go/src/golang.org/x/tools/go.mod"
CGO_CFLAGS="-g -O2"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-g -O2"
CGO_FFLAGS="-g -O2"
CGO_LDFLAGS="-g -O2"
PKG_CONFIG="pkg-config"
GOGCCFLAGS="-fPIC -m64 -pthread -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -fdebug-prefix-map=/var/folders/hc/3p6xvgw97kl124_y5p18kk6m0000gn/T/go-build289374822=/tmp/go-build -gno-record-gcc-switches -fno-common"

What did you do?

nothing. just loading VSCode

What did you expect to see?

it should work

What did you see instead?

It panics

failed to load snapshot: no packages found for query ./...
	directory = file:///Users/tonio/Documents/Aporeto/workspace/code/javascript/junon
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x8 pc=0x15939b5]

goroutine 77997 [running]:
golang.org/x/tools/internal/lsp/cache.(*snapshot).View(0x0, 0xc0591700b0, 0x1848240)
	/Users/tonio/Documents/Aporeto/workspace/code/go/src/golang.org/x/tools/internal/lsp/cache/snapshot.go:61 +0x5
golang.org/x/tools/internal/lsp.(*Server).diagnoseSnapshot(0xc000234120, 0x1851c20, 0x0)
	/Users/tonio/Documents/Aporeto/workspace/code/go/src/golang.org/x/tools/internal/lsp/diagnostics.go:20 +0x69
created by golang.org/x/tools/internal/lsp.(*Server).addFolders
	/Users/tonio/Documents/Aporeto/workspace/code/go/src/golang.org/x/tools/internal/lsp/general.go:173 +0x600

[gopherbot]

Thank you for filing a gopls issue! Please take a look at the Troubleshooting guide, and make sure that you have provided all of the relevant information here.

[heschik]

Closing as duplicate of #36020. Thanks for the report!