runtime error: invalid memory address or nil pointer dereference

[ceastman-r7]

I am getting the following stack trace from this section of code:

migrationRoot, _ := fs.Sub(migrationFiles, "/workspace/db/tern")

err = migrator.LoadMigrations(migrationRoot)

trace: panic: runtime error: invalid memory address or nil pointer dereference [signal SIGSEGV: segmentation violation code=0x1 addr=0x18 pc=0x563c653e5c27]

goroutine 1 [running]: io/fs.ReadDir({0x0, 0x0}, {0x563c65b95510, 0x1}) io/fs/readdir.go:33 +0x87 io/fs.glob({0x0?, 0x0?}, {0x563c65b95510, 0x1}, {0xc0001ce100, 0x1}, {0x0, 0x0, 0x0}) io/fs/glob.go:101 +0x67 io/fs.globWithLimit({0x0, 0x0}, {0xc0001ce100, 0x1}, 0x1) io/fs/glob.go:63 +0x2ea io/fs.globWithLimit({0x0, 0x0}, {0xc0001ce100, 0x7}, 0x0) io/fs/glob.go:72 +0x288 io/fs.Glob(...) io/fs/glob.go:34 github.com/jackc/tern/v2/migrate.(*Migrator).LoadMigrations(0xc0005183c0, {0x0?, 0x0}) github.com/jackc/tern/v2@v2.1.1/migrate/migrate.go:160 +0x488 main.NewMigrator({0xc000552090?, 0x563c665633c0?})

[ceastman-r7]

I verified in the container that there are tern migration sql files:

ck-55655549c4-vlbrr:/workspace/db/tern$ ls -al total 8 drwxr-sr-x 2 1001 cnb 68 Jan 1 1980 . drwxr-sr-x 3 1001 cnb 18 Jan 1 1980 .. -rw-r--r-- 1 1001 cnb 3962 Jan 1 1980 001_v1_initial.up.sql -rw-r--r-- 1 1001 cnb 3069 Jan 1 1980 002_v1_schema_data.up.sql

[ceastman-r7]

missing the go embed comment

i.e. //go:embed data/*.sql