/usr/share/gocode/src/ is in golang-github-prometheus-tsdb-dev 0.0~git20180118.467948f-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/gocode/src/github.com/
/usr/share/gocode/src/github.com/prometheus/
/usr/share/gocode/src/github.com/prometheus/tsdb/
/usr/share/gocode/src/github.com/prometheus/tsdb/block.go
/usr/share/gocode/src/github.com/prometheus/tsdb/block_test.go
/usr/share/gocode/src/github.com/prometheus/tsdb/chunkenc/
/usr/share/gocode/src/github.com/prometheus/tsdb/chunkenc/bstream.go
/usr/share/gocode/src/github.com/prometheus/tsdb/chunkenc/chunk.go
/usr/share/gocode/src/github.com/prometheus/tsdb/chunkenc/chunk_test.go
/usr/share/gocode/src/github.com/prometheus/tsdb/chunkenc/xor.go
/usr/share/gocode/src/github.com/prometheus/tsdb/chunks/
/usr/share/gocode/src/github.com/prometheus/tsdb/chunks/chunks.go
/usr/share/gocode/src/github.com/prometheus/tsdb/cmd/
/usr/share/gocode/src/github.com/prometheus/tsdb/cmd/tsdb/
/usr/share/gocode/src/github.com/prometheus/tsdb/cmd/tsdb/main.go
/usr/share/gocode/src/github.com/prometheus/tsdb/compact.go
/usr/share/gocode/src/github.com/prometheus/tsdb/compact_test.go
/usr/share/gocode/src/github.com/prometheus/tsdb/db.go
/usr/share/gocode/src/github.com/prometheus/tsdb/db_test.go
/usr/share/gocode/src/github.com/prometheus/tsdb/encoding_helpers.go
/usr/share/gocode/src/github.com/prometheus/tsdb/fileutil/
/usr/share/gocode/src/github.com/prometheus/tsdb/fileutil/dir_unix.go
/usr/share/gocode/src/github.com/prometheus/tsdb/fileutil/dir_windows.go
/usr/share/gocode/src/github.com/prometheus/tsdb/fileutil/fileutil.go
/usr/share/gocode/src/github.com/prometheus/tsdb/fileutil/mmap.go
/usr/share/gocode/src/github.com/prometheus/tsdb/fileutil/mmap_unix.go
/usr/share/gocode/src/github.com/prometheus/tsdb/fileutil/mmap_windows.go
/usr/share/gocode/src/github.com/prometheus/tsdb/fileutil/preallocate.go
/usr/share/gocode/src/github.com/prometheus/tsdb/fileutil/preallocate_darwin.go
/usr/share/gocode/src/github.com/prometheus/tsdb/fileutil/preallocate_linux.go
/usr/share/gocode/src/github.com/prometheus/tsdb/fileutil/preallocate_other.go
/usr/share/gocode/src/github.com/prometheus/tsdb/fileutil/sync.go
/usr/share/gocode/src/github.com/prometheus/tsdb/fileutil/sync_darwin.go
/usr/share/gocode/src/github.com/prometheus/tsdb/fileutil/sync_linux.go
/usr/share/gocode/src/github.com/prometheus/tsdb/head.go
/usr/share/gocode/src/github.com/prometheus/tsdb/head_test.go
/usr/share/gocode/src/github.com/prometheus/tsdb/index/
/usr/share/gocode/src/github.com/prometheus/tsdb/index/encoding_helpers.go
/usr/share/gocode/src/github.com/prometheus/tsdb/index/index.go
/usr/share/gocode/src/github.com/prometheus/tsdb/index/index_test.go
/usr/share/gocode/src/github.com/prometheus/tsdb/index/postings.go
/usr/share/gocode/src/github.com/prometheus/tsdb/index/postings_test.go
/usr/share/gocode/src/github.com/prometheus/tsdb/labels/
/usr/share/gocode/src/github.com/prometheus/tsdb/labels/labels.go
/usr/share/gocode/src/github.com/prometheus/tsdb/labels/labels_test.go
/usr/share/gocode/src/github.com/prometheus/tsdb/labels/selector.go
/usr/share/gocode/src/github.com/prometheus/tsdb/querier.go
/usr/share/gocode/src/github.com/prometheus/tsdb/querier_test.go
/usr/share/gocode/src/github.com/prometheus/tsdb/test/
/usr/share/gocode/src/github.com/prometheus/tsdb/test/conv_test.go
/usr/share/gocode/src/github.com/prometheus/tsdb/test/hash_test.go
/usr/share/gocode/src/github.com/prometheus/tsdb/test/labels_test.go
/usr/share/gocode/src/github.com/prometheus/tsdb/testdata/
/usr/share/gocode/src/github.com/prometheus/tsdb/testdata/20kseries.json
/usr/share/gocode/src/github.com/prometheus/tsdb/testutil/
/usr/share/gocode/src/github.com/prometheus/tsdb/testutil/testutil.go
/usr/share/gocode/src/github.com/prometheus/tsdb/tombstones.go
/usr/share/gocode/src/github.com/prometheus/tsdb/tombstones_test.go
/usr/share/gocode/src/github.com/prometheus/tsdb/tsdbutil/
/usr/share/gocode/src/github.com/prometheus/tsdb/tsdbutil/buffer.go
/usr/share/gocode/src/github.com/prometheus/tsdb/tsdbutil/buffer_test.go
/usr/share/gocode/src/github.com/prometheus/tsdb/wal.go
/usr/share/gocode/src/github.com/prometheus/tsdb/wal_test.go