Uncaught TypeError: Cannot read property 'length' of undefined

[lym-950222]

[Enter steps to reproduce:]

1. ...
2. ...

Atom: 1.43.0 x64
Electron: 4.2.7
OS: Ubuntu 18.04.4
Thrown From: rust-api-docs-helper package 0.5.1

Stack Trace

Uncaught TypeError: Cannot read property 'length' of undefined

At /home/lym/.atom/packages/rust-api-docs-helper/lib/gutter-decorator.coffee:22

TypeError: Cannot read property 'length' of undefined
    at GutterDecorator.module.exports.GutterDecorator.updateMarkers (/packages/rust-api-docs-helper/lib/gutter-decorator.coffee:22:7)
    at /packages/rust-api-docs-helper/lib/gutter-decorator.coffee:1:1
    at Function.simpleDispatch (/home/lym/data/programefiles/atom-1.43.0-amd64/resources/app/static/<embedded>:11:1212922)
    at Emitter.emit (/home/lym/data/programefiles/atom-1.43.0-amd64/resources/app/static/<embedded>:11:1214363)
    at TextBuffer.emitDidStopChangingEvent (/home/lym/data/programefiles/atom-1.43.0-amd64/resources/app/static/<embedded>:11:504974)
    at later (/home/lym/data/programefiles/atom-1.43.0-amd64/resources/app/static/<embedded>:14:104450)

Commands

     -0:36.5.0 core:confirm (textarea.xterm-helper-textarea)
  3x -0:15.9.0 core:backspace (input.hidden-input)

Non-Core Packages

atom-ide-ui 0.13.0 
atom-runner 2.7.1 
autocomplete-clang 0.13.1 
autocomplete-R 0.6.0 
build-cargo 2.0.0 
busy-signal 2.0.1 
hyperclick 0.0.0 
ide-rust 0.21.2 
indent-detective 0.4.0 
ink 0.12.3 
intentions 1.1.5 
julia-client 0.12.3 
language-julia 0.19.2 
language-rust 0.4.12 
latex-completions 0.3.6 
linter 2.3.1 
linter-gcc 0.9.0 
linter-rust 1.0.1 
linter-rust-cargo 1.1.0 
linter-ui-default 1.8.1 
node_modules undefined 
npm 2.0.0 
racer 0.20.0 
rust-api-docs-helper 0.5.1 
tool-bar 1.2.2 
uber-juno 0.3.0