panic when loading bview into rotonda

[ties]

I am trying to load a bview into rotonda. On some runs, it succeeds. On others, it crashes:

http_listen = ["127.0.0.1:8080"]

[units.mrt-in]
type = "mrt-file-in"
# https://data.ris.ripe.net/rrc00/latest-bview.gz
filename = "../bview/latest-bview-rrc00"

[units.rib]
type = "rib"
sources = ["mrt-in"]

[targets.null]
type = "null-out"
sources = "rib"

Failure case

$ RUST_BACKTRACE=full rotonda --config rotonda.toml
no roto scripts path to load filters from
Listening for HTTP connections on 127.0.0.1:8080
Starting target 'null'
Starting unit 'rib'
Starting unit 'mrt-in'
All components are ready.
All components are running.
processing ../bview/latest-bview-rrc00
thread 'tokio-runtime-worker' panicked at ~/.cargo/registry/src/index.crates.io-6f17d22bba15001f/rotonda-0.2.0/src/units/rib_unit/unit.rs:1102:61:
called `Result::unwrap()` on an `Err` value: OutOfRangeError(())
stack backtrace:
   0:        0x102831f60 - __mh_execute_header
   1:        0x10284fc68 - __mh_execute_header
   2:        0x10282ed68 - __mh_execute_header
   3:        0x1028330dc - __mh_execute_header
   4:        0x102832c8c - __mh_execute_header
   5:        0x102833b58 - __mh_execute_header
   6:        0x102833584 - __mh_execute_header
   7:        0x102832424 - __mh_execute_header
   8:        0x10283324c - __mh_execute_header
   9:        0x1028907d4 - __mh_execute_header
  10:        0x102890b64 - __mh_execute_header
  11:        0x102280e6c - __mh_execute_header
  12:        0x10227eff4 - __mh_execute_header
  13:        0x10228b134 - __mh_execute_header
  14:        0x10234aa50 - __mh_execute_header
  15:        0x1021affc0 - __mh_execute_header
  16:        0x10218ad90 - __mh_execute_header
  17:        0x102167e28 - __mh_execute_header
  18:        0x10214456c - __mh_execute_header
  19:        0x1027b2e3c - __mh_execute_header
  20:        0x1027b2788 - __mh_execute_header
  21:        0x1027be4b8 - __mh_execute_header
  22:        0x1027ad4cc - __mh_execute_header
  23:        0x1027b20c8 - __mh_execute_header
  24:        0x1027a36c4 - __mh_execute_header
  25:        0x102797b9c - __mh_execute_header
  26:        0x1027b7588 - __mh_execute_header
  27:        0x1027bc058 - __mh_execute_header
  28:        0x10279e504 - __mh_execute_header
  29:        0x102835cc8 - __mh_execute_header
  30:        0x188aeb2e4 - __pthread_deallocate
Gate[mrt-in (c21ee848-7732-4b91-b88a-e8c64d849bb1 clone of 8a31d9da-ce5f-4142-a25c-84c085153fd1)]: Failed to attach clone to parent c21ee848-7732-4b91-b88a-e8c64d849bb1
^CCTRL-C (SIGINT) received, shutting down.
Stopping unit 'mrt-in'
Stopping unit 'rib'
Stopping target 'null'

Successful case

$ rotonda --config rotonda.toml
no roto scripts path to load filters from
Listening for HTTP connections on 127.0.0.1:8080
Starting target 'null'
Starting unit 'rib'
Starting unit 'mrt-in'
All components are ready.
All components are running.
processing ../bview/latest-bview-rrc00

mrt-in: done processing ../bview/latest-bview-rrc00, emitted 51050483 routes in 103s
ca^CCTRL-C (SIGINT) received, shutting down.
Stopping unit 'rib'
Stopping unit 'mrt-in'
terminating unit, processed ["../bview/latest-bview-rrc00"]
Stopping target 'null'
^C^C^C
Exiting with exit code 0

context

$ rustup update
info: syncing channel updates for 'stable-aarch64-apple-darwin'

  stable-aarch64-apple-darwin unchanged - rustc 1.82.0 (f6e511eec 2024-10-15)

info: cleaning up downloads & tmp directories
info: self-update is disabled for this build of rustup
info: any updates to rustup will need to be fetched with your system package manager
$ cargo --version
cargo 1.82.0 (8f40fc59f 2024-08-21)
~/src/ripe/ris/example_apps/using_rotonda main*
$ cargo install rotonda
    Updating crates.io index
     Ignored package `rotonda v0.2.0` is already installed, use --force to override
$ rotonda --version
rotonda 0.2.0