$ mkdir mypkg
$ cd mypkg/
$ cabal init -n
[Log] Guessing dependencies...
[Log] Using cabal specification: 3.8
[Warning] unknown license type, you must put a copy in LICENSE yourself.
[Log] Creating fresh file CHANGELOG.md...
[Log] Creating fresh directory ./app...
[Log] Creating fresh file app/Main.hs...
[Log] Creating fresh file mypkg.cabal...
[Warning] No synopsis given. You should edit the .cabal file and add one.
[Info] You may want to edit the .cabal file and add a Description field.

$ cabal freeze
Resolving dependencies...
Wrote freeze file: /tmp/mypkg/cabal.project.freeze
$ syft .
 ⠋ Indexing .              [file: /tmp/mypkg]
 ⠋ Cataloging packages     [packages 0]panic: runtime error: slice bounds out of range [:-1]

goroutine 40 [running]:
github.com/anchore/syft/syft/pkg/cataloger/haskell.parseCabalFreeze({0xa?, 0xc0005de068?}, 0xc00075c150?, {{{{0xc0014020cb, 0x14}, {0x0, 0x0}}, {0x0, 0x0}, {0x5, ...}}, ...})
        github.com/anchore/syft/syft/pkg/cataloger/haskell/parse_cabal_freeze.go:37 +0x5d8
github.com/anchore/syft/syft/pkg/cataloger/generic.(*Cataloger).Catalog(0xc00075d3e0, {0x28efdd0, 0xc000474070})
        github.com/anchore/syft/syft/pkg/cataloger/generic/cataloger.go:127 +0x70e
github.com/anchore/syft/syft/pkg/cataloger.Catalog({0x28efdd0?, 0xc000474070}, 0x8?, {0xc00017c2c0, 0x16, 0x0?})
        github.com/anchore/syft/syft/pkg/cataloger/catalog.go:54 +0x3ec
github.com/anchore/syft/syft.CatalogPackages(0xc000242300, {{0x1, 0x0, {0x2504036, 0x8}}, {0x0, 0x0, 0x0}})
        github.com/anchore/syft/syft/lib.go:72 +0x5a5
github.com/anchore/syft/cmd/syft/cli/eventloop.generateCatalogPackagesTask.func1(0xc000bfa4e0, 0x0?)
        github.com/anchore/syft/cmd/syft/cli/eventloop/tasks.go:49 +0xdc
github.com/anchore/syft/cmd/syft/cli/eventloop.RunTask(0x0?, 0x0?, 0x0?, 0xc001414000, 0xc000090680?)
        github.com/anchore/syft/cmd/syft/cli/eventloop/tasks.go:223 +0x85
created by github.com/anchore/syft/cmd/syft/cli/packages.buildRelationships
        github.com/anchore/syft/cmd/syft/cli/packages/packages.go:121 +0x65