This is the relevant test:
```
like_program_out 'postgres', 'pg_lsclusters -h | sort -k3', 0,
qr/.*5434.*5435.*5440.*/s,
'port of first cluster was successfully changed';
# Execute a command as a particular user, and check the exit code and output
# against a regular expression (merged stdout/stderr).
# Arguments: <user> <command> <expected exit code> <expected output re>
[<description>]
sub like_program_out {
my $outref;
my $result = exec_as $_[0], $_[1], $outref;
is $result, $_[2], $_[1] or fail_debug;
like ($$outref, $_[3], (defined $_[4] ? $_[4] : "correct output of $_[1]"))
or fail_debug;
}
```
This is the original output the test is parsing:
```
# sudo -u postgres pg_lsclusters -h
17 new1 5434 online postgres /var/lib/postgresql/17/new1
/var/log/postgresql/postgresql-17-new1.log
17 new2 5440 online postgres /var/lib/postgresql/17/new2
/var/log/postgresql/postgresql-17-new2.log
17 old 5435 online postgres /var/lib/postgresql/17/old
/var/log/postgresql/postgresql-17-old.log
```
GNU coreutils will sort the output above with `| sort -k3` (sorting
based on the 3rd column - i.e., port numbers), resulting in:
```
17 new1 5434 online postgres /var/lib/postgresql/17/new1
/var/log/postgresql/postgresql-17-new1.log
17 old 5435 online postgres /var/lib/postgresql/17/old
/var/log/postgresql/postgresql-17-old.log
17 new2 5440 online postgres /var/lib/postgresql/17/new2
/var/log/postgresql/postgresql-17-new2.log
```
which is the expected port order parsed by the regular expression in the
test.
uutils will sort the same output with `| sort -k3` with the following
output, as shown in the test logs:
```
17 old 5435 online postgres /var/lib/postgresql/17/old
/var/log/postgresql/postgresql-17-old.log
17 new1 5434 online postgres /var/lib/postgresql/17/new1
/var/log/postgresql/postgresql-17-new1.log
17 new2 5440 online postgres /var/lib/postgresql/17/new2
/var/log/postgresql/postgresql-17-new2.log
```
which is not in the order expected by the test's regular expression,
leading to a test failure.
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https://bugs.launchpad.net/bugs/2125057
Title:
the autopkgtest are failing with rust-coreutils
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