I was curious about this but couldn't see a way to filter specific machines using the web interface. The CPAN Testers Reports page has download links for JSON, RSS and YAML. I downloaded the JSON data and wrote this quick-and-dirty script:

#!/usr/bin/env perl

use 5.010;
use strict;
use warnings;

use JSON;

my ($json_file, %json_wanted) = @ARGV;

open my $json_fh, '<', $json_file or die "Can't open $json_file: $!";
my $json_text = <$json_fh>;
close $json_fh;

my $json_array_ref = decode_json $json_text;

TEST_HASH:
for my $test_hash (@$json_array_ref) {
    for my $wanted_key (keys %json_wanted) {
        my $test_value = $test_hash->{$wanted_key};
        next TEST_HASH unless defined $test_value;
        next TEST_HASH unless "$json_wanted{$wanted_key}" eq "$test_va
+lue";
    }

    for my $key (sort keys %$test_hash) {
        say $key, ': ', $test_hash->{$key};
    }

    say '-' x 60;
}
[download]

Here's a test run filtering on a specific tester and a specific Perl version:

$ pm_cpan_test_extract.pl Tk-ROSyntaxText.json tester 'was_a_real_emai
+l_address' perl '5.17.0'
csspatch: unp
cssperl: dev
dist: Tk-ROSyntaxText
distribution: Tk-ROSyntaxText
distversion: Tk-ROSyntaxText-1.001
fulldate: 201205260128
guid: 0bf30766-a6d2-11e1-88ae-fe3ff4b14d39
id: 22275926
osname: linux
ostext: GNU/Linux
osvers: 2.6.32-5-amd64
perl: 5.17.0
platform: x86_64-linux-ld
postdate: 201205
state: pass
status: PASS
tester: was_a_real_email_address
type: 2
version: 1.001
------------------------------------------------------------
csspatch: unp
cssperl: dev
dist: Tk-ROSyntaxText
distribution: Tk-ROSyntaxText
distversion: Tk-ROSyntaxText-1.001
fulldate: 201205220052
guid: 77d0ff9c-a3a8-11e1-8aed-c04af4b14d39
id: 22217880
osname: linux
ostext: GNU/Linux
osvers: 2.6.32-5-amd64
perl: 5.17.0
platform: x86_64-linux-thread-multi
postdate: 201205
state: pass
status: PASS
tester: was_a_real_email_address
type: 2
version: 1.001
------------------------------------------------------------
[download]

I changed the tester's email address to was_a_real_email_address before posting here. Use http://stats.cpantesters.org/cpanmail.html if you're really that interested. :-)

I saw Khen1950fx's response as I was about to post this. I'm not familiar with the module he's used. Perhaps that's a better solution.

I think that your solution presents the info better. I upvoted your node++.

Thanks for that; especially as that vote not only ++node but also ++level. I've just been promoted to Priest. :-)

-- Ken

#!/usr/bin/perl 

BEGIN {
    $| = 1;
}

use strict;
use warnings;
use CPAN::Testers::WWW::Reports::Query::Reports;

my $query = CPAN::Testers::WWW::Reports::Query::Reports->new;
exit unless ($query);

my $result = $query->range(
    '20080300'
);

my @ids = sort keys %$result;
my $id  = $ids[0];

binmode STDOUT, ":encoding(UTF-8)";

print "id = $id,
    dist = 'result->{$id}{'dist'}',
    version = 'result->{$id}{'version'}'";

if (defined(my $data = $query->raw)) {
    chomp $data;
    print $data, "\n";
}
my $error = $query->error;
[download]

I wonder if there is a way to list all (or all recent) reports from a particular test machine, to be able to find out if there is something strange/particular about the machine's setup.

What module?

All the reports will have mostly the same information, ie, you won't be able to find anything