Parca v0.19.0 panics

[maxbrunet]

Captured on the demo:

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 888   .d88'  .oooo.   oooo d8b  .ooooo.   .oooo.
 888ooo88P'  `P  )88b  `888""8P d88' `"Y8 `P  )88b
 888          .oP"888   888     888        .oP"888
 888         d8(  888   888     888   .o8 d8(  888
o888o        `Y888""8o d888b    `Y8bod8P' `Y888""8o



level=info name=parca ts=2023-09-27T00:52:12.869460694Z caller=factory.go:53 msg="loading bucket configuration"
level=info name=parca ts=2023-09-27T00:52:12.873882826Z caller=badger.go:54 msg="Set nextTxnTs to 0"
level=info name=parca ts=2023-09-27T00:52:12.880366356Z caller=server.go:90 msg="starting server" addr=:7070
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x30 pc=0x30110b2]

goroutine 2106 [running]:
github.com/parca-dev/parca/pkg/query.lineToTreeNode(...)
        github.com/parca-dev/parca/pkg/query/flamegraph.go:337
github.com/parca-dev/parca/pkg/query.linesToTreeNodes(0xc010ef00c0, 0xc010eecb00, {0xc010d45be0, 0x1, 0x0?})
        github.com/parca-dev/parca/pkg/query/flamegraph.go:300 +0x252
github.com/parca-dev/parca/pkg/query.locationToTreeNodes(0xc010ef0100?)
        github.com/parca-dev/parca/pkg/query/flamegraph.go:256 +0x186
github.com/parca-dev/parca/pkg/query.GenerateFlamegraphFlat({0xc00f036f40?, 0xf?}, {0xc00f036f5e?, 0x3?}, {{{0xc00f036f40, 0xf}, {{0xc00f036f5e, 0x3}, {0xc00f036f62, 0xb}}, ...}, ...})
        github.com/parca-dev/parca/pkg/query/flamegraph_flat.go:42 +0x205
github.com/parca-dev/parca/pkg/query.RenderReport({0x5725a80?, 0xc00f453e30?}, {0x56eef20, 0x79928e0}, {{0xc0103cdf90, 0x1, 0x1}, {{0xc00f036f40, 0xf}, {{0xc00f036f5e, ...}, ...}, ...}}, ...)
        github.com/parca-dev/parca/pkg/query/columnquery.go:524 +0x3e5
github.com/parca-dev/parca/pkg/query.(*ColumnQueryAPI).renderReport(0xc00f672c80?, {0x5725a80?, 0xc00f453e30}, {{0xc0103cdf90, 0x1, 0x1}, {{0xc00f036f40, 0xf}, {{0xc00f036f5e, 0x3}, ...}, ...}}, ...)
        github.com/parca-dev/parca/pkg/query/columnquery.go:475 +0x11e
github.com/parca-dev/parca/pkg/query.(*ColumnQueryAPI).Query(0xc001897340, {0x5725a80, 0xc00f453e30}, 0xc00f6691f0)
        github.com/parca-dev/parca/pkg/query/columnquery.go:247 +0x974
github.com/parca-dev/parca/gen/proto/go/parca/query/v1alpha1._QueryService_Query_Handler.func1({0x5725a80, 0xc00f453e30}, {0x3ed8640?, 0xc00f6691f0})
        github.com/parca-dev/parca/gen/proto/go/parca/query/v1alpha1/query_vtproto.pb.go:218 +0x72
github.com/grpc-ecosystem/go-grpc-middleware/v2/interceptors/logging.UnaryServerInterceptor.UnaryServerInterceptor.func2({0x5725a80, 0xc00f453d40}, {0x3ed8640, 0xc00f6691f0}, 0xc00f453dd0?, 0xc00ed91128)
        github.com/grpc-ecosystem/go-grpc-middleware/v2@v2.0.0/interceptors/server.go:22 +0x28a
google.golang.org/grpc.getChainUnaryHandler.func1({0x5725a80, 0xc00f453d40}, {0x3ed8640, 0xc00f6691f0})
        google.golang.org/grpc@v1.58.1/server.go:1195 +0xb2
github.com/parca-dev/parca/pkg/server.(*Server).ListenAndServe.(*ServerMetrics).UnaryServerInterceptor.UnaryServerInterceptor.func15({0x5725a80, 0xc00f453d40}, {0x3ed8640, 0xc00f6691f0}, 0xc00f44f480?, 0xc00f6670c
0)
        github.com/grpc-ecosystem/go-grpc-middleware/v2@v2.0.0/interceptors/server.go:22 +0x28a
google.golang.org/grpc.getChainUnaryHandler.func1({0x5725a80, 0xc00f453d40}, {0x3ed8640, 0xc00f6691f0})
        google.golang.org/grpc@v1.58.1/server.go:1195 +0xb2
go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc.UnaryServerInterceptor.func1({0x5725a80, 0xc00f453c80}, {0x3ed8640, 0xc00f6691f0}, 0xc00f44f480, 0xc00f666fc0)
        go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc@v0.43.0/interceptor.go:376 +0x5cd
google.golang.org/grpc.NewServer.chainUnaryServerInterceptors.chainUnaryInterceptors.func1({0x5725a80, 0xc00f453c80}, {0x3ed8640, 0xc00f6691f0}, 0xc00f3c6a50?, 0x37b0da0?)
        google.golang.org/grpc@v1.58.1/server.go:1186 +0x85
github.com/parca-dev/parca/gen/proto/go/parca/query/v1alpha1._QueryService_Query_Handler({0x3df5c60?, 0xc001897340}, {0x5725a80, 0xc00f453c80}, 0xc00f669180, 0xc0018a13c0)
        github.com/parca-dev/parca/gen/proto/go/parca/query/v1alpha1/query_vtproto.pb.go:220 +0x135
google.golang.org/grpc.(*Server).processUnaryRPC(0xc000dac1e0, {0x573ade0, 0xc00f5ac3c0}, 0xc00eadad80, 0xc0015f14d0, 0x7932b38, 0x0)
        google.golang.org/grpc@v1.58.1/server.go:1376 +0xde7
google.golang.org/grpc.(*Server).handleStream(0xc000dac1e0, {0x573ade0, 0xc00f5ac3c0}, 0xc00eadad80, 0x0)
        google.golang.org/grpc@v1.58.1/server.go:1753 +0x9e7
google.golang.org/grpc.(*Server).serveStreams.func1.1()
        google.golang.org/grpc@v1.58.1/server.go:998 +0x8d
created by google.golang.org/grpc.(*Server).serveStreams.func1 in goroutine 1961
        google.golang.org/grpc@v1.58.1/server.go:996 +0x165

Not sure if the same as #3876, looks slightly different.

Edit: Panics with or without --experimental-arrow