continuationNotice function
What an ExitCode.continuationFailed run prints: that body finished,
and that continuation, failing after it, does not undo that.
Both names, and nothing about what they were. This was one fixed
sentence — "the upload took place" — lifted from the Makefile of the
project that asked for then:, and it was printed after every then:
that failed. The first project to use then: for anything else, a build
followed by an install, was told about an upload that never happened.
The engine knows which task finished and which failed after it; whether
the first was an upload is the project's to say.
Implementation
String continuationNotice({
required String body,
required String continuation,
}) =>
'`$body` finished, and `$continuation` failing after it does not undo '
'that';