On the first one it tells you make test had returned bad status, won't install without force, so if you wish to install, use force

$ perldoc cpan |grep -i force -C2
        and CPAN version.

    -f  Force the specified action, when it normally would have failed
+. Use
        this to install a module even if its tests fail. When you use 
+this
        option, -i is not optional for installing a module when you ne
+ed to
        force it:

                % cpan -f -i Module::Foo
--
            cpan -i Netscape::Booksmarks Business::ISBN

            # force install modules ( must use -i )
            cpan -fi CGI::Minimal URI

--

CREDITS
    Japheth Cleaver added the bits to allow a forced install (-f).

    Jim Brandt suggest and provided the initial implementation for the

[download]

On the second one a similar instruction 

!   - run me as a root or with --sudo option
|   - run me with --local-lib option !

[download]
so either run it as root (administrator) or use --sudo , or run with --local-lib . You can also use this instead of --local-lib 
export PERL_MB_OPT=--install_base /home/user/devstuff
export PERL_MM_OPT=INSTALL_BASE=/home/user/devstuff
export PERL5LIB=/home/user/devstuff/perl5
cpanp i WWW::Mechanize --force --skiptest

[download]

In reply to Re: Hell of a time installing module WWW::Mechanize by Anonymous Monk
in thread Hell of a time installing module WWW::Mechanize by cat_baby

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