regarding prereqs:

Hmm, interesting: I expected the failure on AnyEvent, too. I wonder if that was the DNS change, or the difference between 5.28.1_64 (this time) and 5.28.1_64_PDL (last time); probably time for more experimentation: yep, when I switch back to 5.28.1_64_PDL, and cpanm --reinstall AnyEvent, it installed with a pass... I submitted the passing report.

Regarding Future::HTTP, it seems to be an order-of-installs issue, because it installed just fine on second attempt. If i've extracted the right portion of the build.log, it appears to be not finding the blib\lib\Future\HTTP\Tiny\Paranoid.pm, even though blib\lib is in the @INC. Hmph.

Building and testing Future-HTTP-0.12
cp lib/Future/HTTP/Mojo.pm blib\lib\Future\HTTP\Mojo.pm
cp lib/Future/HTTP/Handler.pm blib\lib\Future\HTTP\Handler.pm
cp lib/Future/HTTP/Tiny/Paranoid.pm blib\lib\Future\HTTP\Tiny\Paranoid
+.pm
cp lib/Future/HTTP/API/HTTPTiny.pm blib\lib\Future\HTTP\API\HTTPTiny.p
+m
cp lib/Future/HTTP/Tiny.pm blib\lib\Future\HTTP\Tiny.pm
cp lib/Future/HTTP/AnyEvent.pm blib\lib\Future\HTTP\AnyEvent.pm
cp lib/Future/HTTP.pm blib\lib\Future\HTTP.pm
cp lib/Future/HTTP/NetAsync.pm blib\lib\Future\HTTP\NetAsync.pm
"C:\usr\local\apps\berrybrew\perls\mech\perl\bin\perl.exe" "-MExtUtils
+::Command::MM" "-MTest::Harness" "-e" "undef *Test::Harness::Switches
+; test_harness(0, 'blib\lib', 'blib\arch')" t/00-load.t t/01-anyevent
+-http.t t/01-backends-anyevent.t t/01-backends-default.t t/01-backend
+s-mojolicious.t t/01-backends-netasync.t t/01-backends-tiny-paranoid.
+t t/01-http-tiny-paranoid.t t/01-http-tiny.t t/01-mojo.t t/01-netasyn
+c.t t/02-changedefault1.t t/02-changedefault2.t
# Testing Future::HTTP 0.12, Perl 5.028001
# Carp 1.50
# Config 5.028001
# Exporter 5.73
# Exporter::Heavy 5.73
# Fcntl 1.13
# Filter::Simple 0.95
# Filter::Util::Call 1.59
# Filter::signatures 0.15
# Future::HTTP 0.12
# IO 1.39
# IO::Handle 1.39
# List::Util 1.5
# POSIX 1.84
# PerlIO 1.10
# Portable 1.22
# Portable::CPAN 1.22
# Portable::Config 1.22
# Portable::FileSpec 1.22
# Portable::HomeDir 1.22
# Portable::LoadYaml 1.22
# Portable::minicpan 1.22
# Scalar::Util 1.5
# SelectSaver 1.02
# SelfLoader 1.25
# Symbol 1.08
# Test::Builder 1.302141
# Test::Builder::Formatter 1.302141
# Test::Builder::Module 1.302141
# Test::Builder::TodoDiag 1.302141
# Test::More 1.302141
# Test2::API 1.302141
# Test2::API::Context 1.302141
# Test2::API::Instance 1.302141
# Test2::API::Stack 1.302141
# Test2::Event 1.302141
# Test2::Event::Bail 1.302141
# Test2::Event::Diag 1.302141
# Test2::Event::Exception 1.302141
# Test2::Event::Fail 1.302141
# Test2::Event::Note 1.302141
# Test2::Event::Ok 1.302141
# Test2::Event::Pass 1.302141
# Test2::Event::Plan 1.302141
# Test2::Event::Skip 1.302141
# Test2::Event::Subtest 1.302141
# Test2::Event::V2 1.302141
# Test2::Event::Waiting 1.302141
# Test2::EventFacet 1.302141
# Test2::EventFacet::About 1.302141
# Test2::EventFacet::Amnesty 1.302141
# Test2::EventFacet::Assert 1.302141
# Test2::EventFacet::Control 1.302141
# Test2::EventFacet::Error 1.302141
# Test2::EventFacet::Hub 1.302141
# Test2::EventFacet::Info 1.302141
# Test2::EventFacet::Meta 1.302141
# Test2::EventFacet::Parent 1.302141
# Test2::EventFacet::Plan 1.302141
# Test2::EventFacet::Trace 1.302141
# Test2::Formatter 1.302141
# Test2::Formatter::TAP 1.302141
# Test2::Hub 1.302141
# Test2::Hub::Interceptor 1.302141
# Test2::Hub::Interceptor::Terminator 1.302141
# Test2::Hub::Subtest 1.302141
# Test2::Util 1.302141
# Test2::Util::ExternalMeta 1.302141
# Test2::Util::Facets2Legacy 1.302141
# Test2::Util::HashBase 1.302141
# Test2::Util::Trace 1.302141
# Text::Balanced 2.03
# Tie::Hash 1.05
# XSLoader 0.30
# base 2.27
# feature 1.52
# mro 1.22
# overload 1.30
# overloading 0.02
# strict 1.11
# vars 1.04
# warnings 1.42
# warnings::register 1.04
t/00-load.t .................... ok
t/01-anyevent-http.t ........... skipped: Couldn't load Future::HTTP::
+AnyEvent: Can't locate AnyEvent/HTTP.pm in @INC (you may need to inst
+all the AnyEvent::HTTP module) (@INC contains: C:\.cpanm\work\1546369
+591.14828\Future-HTTP-0.12\blib\lib C:\.cpanm\work\1546369591.14828\F
+uture-HTTP-0.12\blib\arch ./blib/lib ./lib ../blib/lib ../lib C:\Prog
+ram Files (x86)\Notepad++\plugins\PerlDebug ./blib/lib ./lib ../blib/
+lib ../lib C:\Program Files (x86)\Notepad++\plugins\PerlDebug C:/usr/
+local/apps/berrybrew/perls/mech/perl/site/lib/MSWin32-x64-multi-threa
+d C:/usr/local/apps/berrybrew/perls/mech/perl/site/lib C:/usr/local/a
+pps/berrybrew/perls/mech/perl/vendor/lib C:/usr/local/apps/berrybrew/
+perls/mech/perl/lib .) at C:\.cpanm\work\1546369591.14828\Future-HTTP
+-0.12\blib\lib/Future/HTTP/AnyEvent.pm line 4.
# Skipped check for Future::HTTP::AnyEvent backend: Can't locate AnyEv
+ent/HTTP.pm in @INC (you may need to install the AnyEvent::HTTP modul
+e) (@INC contains: C:\.cpanm\work\1546369591.14828\Future-HTTP-0.12\b
+lib\lib C:\.cpanm\work\1546369591.14828\Future-HTTP-0.12\blib\arch ./
+blib/lib ./lib ../blib/lib ../lib C:\Program Files (x86)\Notepad++\pl
+ugins\PerlDebug ./blib/lib ./lib ../blib/lib ../lib C:\Program Files 
+(x86)\Notepad++\plugins\PerlDebug C:/usr/local/apps/berrybrew/perls/m
+ech/perl/site/lib/MSWin32-x64-multi-thread C:/usr/local/apps/berrybre
+w/perls/mech/perl/site/lib C:/usr/local/apps/berrybrew/perls/mech/per
+l/vendor/lib C:/usr/local/apps/berrybrew/perls/mech/perl/lib .) at C:
+\.cpanm\work\1546369591.14828\Future-HTTP-0.12\blib\lib/Future/HTTP/A
+nyEvent.pm line 4.
# BEGIN failed--compilation aborted at C:\.cpanm\work\1546369591.14828
+\Future-HTTP-0.12\blib\lib/Future/HTTP/AnyEvent.pm line 4.
# Compilation failed in require at (eval 36) line 1.
t/01-backends-anyevent.t ....... ok
t/01-backends-default.t ........ ok
# Skipped check for Future::HTTP::Mojo backend: Can't locate Future/Mo
+jo.pm in @INC (you may need to install the Future::Mojo module) (@INC
+ contains: C:\.cpanm\work\1546369591.14828\Future-HTTP-0.12\blib\lib 
+C:\.cpanm\work\1546369591.14828\Future-HTTP-0.12\blib\arch ./blib/lib
+ ./lib ../blib/lib ../lib C:\Program Files (x86)\Notepad++\plugins\Pe
+rlDebug ./blib/lib ./lib ../blib/lib ../lib C:\Program Files (x86)\No
+tepad++\plugins\PerlDebug C:/usr/local/apps/berrybrew/perls/mech/perl
+/site/lib/MSWin32-x64-multi-thread C:/usr/local/apps/berrybrew/perls/
+mech/perl/site/lib C:/usr/local/apps/berrybrew/perls/mech/perl/vendor
+/lib C:/usr/local/apps/berrybrew/perls/mech/perl/lib .) at C:\.cpanm\
+work\1546369591.14828\Future-HTTP-0.12\blib\lib/Future/HTTP/Mojo.pm l
+ine 3.
# BEGIN failed--compilation aborted at C:\.cpanm\work\1546369591.14828
+\Future-HTTP-0.12\blib\lib/Future/HTTP/Mojo.pm line 3.
# Compilation failed in require at (eval 63) line 1.
t/01-backends-mojolicious.t .... ok
# Skipped check for Future::HTTP::NetAsync backend: Can't locate IO/As
+ync.pm in @INC (you may need to install the IO::Async module) (@INC c
+ontains: C:\.cpanm\work\1546369591.14828\Future-HTTP-0.12\blib\lib C:
+\.cpanm\work\1546369591.14828\Future-HTTP-0.12\blib\arch ./blib/lib .
+/lib ../blib/lib ../lib C:\Program Files (x86)\Notepad++\plugins\Perl
+Debug ./blib/lib ./lib ../blib/lib ../lib C:\Program Files (x86)\Note
+pad++\plugins\PerlDebug C:/usr/local/apps/berrybrew/perls/mech/perl/s
+ite/lib/MSWin32-x64-multi-thread C:/usr/local/apps/berrybrew/perls/me
+ch/perl/site/lib C:/usr/local/apps/berrybrew/perls/mech/perl/vendor/l
+ib C:/usr/local/apps/berrybrew/perls/mech/perl/lib .) at t/01-backend
+s-netasync.t line 13.
t/01-backends-netasync.t ....... ok
# Skipped check for Future::HTTP::Tiny::Paranoid backend: Can't locate
+ HTTP/Tiny/Paranoid.pm in @INC (you may need to install the HTTP::Tin
+y::Paranoid module) (@INC contains: C:\.cpanm\work\1546369591.14828\F
+uture-HTTP-0.12\blib\lib C:\.cpanm\work\1546369591.14828\Future-HTTP-
+0.12\blib\arch ./blib/lib ./lib ../blib/lib ../lib C:\Program Files (
+x86)\Notepad++\plugins\PerlDebug ./blib/lib ./lib ../blib/lib ../lib 
+C:\Program Files (x86)\Notepad++\plugins\PerlDebug C:/usr/local/apps/
+berrybrew/perls/mech/perl/site/lib/MSWin32-x64-multi-thread C:/usr/lo
+cal/apps/berrybrew/perls/mech/perl/site/lib C:/usr/local/apps/berrybr
+ew/perls/mech/perl/vendor/lib C:/usr/local/apps/berrybrew/perls/mech/
+perl/lib .) at t/01-backends-tiny-paranoid.t line 13.
t/01-backends-tiny-paranoid.t .. ok
Couldn't kill pid '8836' at C:/usr/local/apps/berrybrew/perls/mech/per
+l/site/lib/Test/HTTP/LocalServer.pm line 237.
# Looks like your test exited with -1 before it could output anything.
t/01-http-tiny-paranoid.t ...... skipped: Couldn't load Future::HTTP::
+Tiny::Paranoid: Can't locate HTTP/Tiny/Paranoid.pm in @INC (you may n
+eed to install the HTTP::Tiny::Paranoid module) (@INC contains: C:\.c
+panm\work\1546369591.14828\Future-HTTP-0.12\blib\lib C:\.cpanm\work\1
+546369591.14828\Future-HTTP-0.12\blib\arch ./blib/lib ./lib ../blib/l
+ib ../lib C:\Program Files (x86)\Notepad++\plugins\PerlDebug ./blib/l
+ib ./lib ../blib/lib ../lib C:\Program Files (x86)\Notepad++\plugins\
+PerlDebug C:/usr/local/apps/berrybrew/perls/mech/perl/site/lib/MSWin3
+2-x64-multi-thread C:/usr/local/apps/berrybrew/perls/mech/perl/site/l
+ib C:/usr/local/apps/berrybrew/perls/mech/perl/vendor/lib C:/usr/loca
+l/apps/berrybrew/perls/mech/perl/lib .) at t/01-http-tiny-paranoid.t 
+line 10.
# Version of HTTP::Tiny: 0.076
Couldn't kill pid '3680' at C:/usr/local/apps/berrybrew/perls/mech/per
+l/site/lib/Test/HTTP/LocalServer.pm line 237.
t/01-http-tiny.t ............... ok
t/01-mojo.t .................... skipped: Couldn't load Future::HTTP::
+Mojo: Can't locate Future/Mojo.pm in @INC (you may need to install th
+e Future::Mojo module) (@INC contains: C:\.cpanm\work\1546369591.1482
+8\Future-HTTP-0.12\blib\lib C:\.cpanm\work\1546369591.14828\Future-HT
+TP-0.12\blib\arch ./blib/lib ./lib ../blib/lib ../lib C:\Program File
+s (x86)\Notepad++\plugins\PerlDebug ./blib/lib ./lib ../blib/lib ../l
+ib C:\Program Files (x86)\Notepad++\plugins\PerlDebug C:/usr/local/ap
+ps/berrybrew/perls/mech/perl/site/lib/MSWin32-x64-multi-thread C:/usr
+/local/apps/berrybrew/perls/mech/perl/site/lib C:/usr/local/apps/berr
+ybrew/perls/mech/perl/vendor/lib C:/usr/local/apps/berrybrew/perls/me
+ch/perl/lib .) at C:\.cpanm\work\1546369591.14828\Future-HTTP-0.12\bl
+ib\lib/Future/HTTP/Mojo.pm line 3.
t/01-netasync.t ................ skipped: Couldn't load Net::Async::HT
+TP: Can't locate Net/Async/HTTP.pm in @INC (you may need to install t
+he Net::Async::HTTP module) (@INC contains: C:\.cpanm\work\1546369591
+.14828\Future-HTTP-0.12\blib\lib C:\.cpanm\work\1546369591.14828\Futu
+re-HTTP-0.12\blib\arch ./blib/lib ./lib ../blib/lib ../lib C:\Program
+ Files (x86)\Notepad++\plugins\PerlDebug ./blib/lib ./lib ../blib/lib
+ ../lib C:\Program Files (x86)\Notepad++\plugins\PerlDebug C:/usr/loc
+al/apps/berrybrew/perls/mech/perl/site/lib/MSWin32-x64-multi-thread C
+:/usr/local/apps/berrybrew/perls/mech/perl/site/lib C:/usr/local/apps
+/berrybrew/perls/mech/perl/vendor/lib C:/usr/local/apps/berrybrew/per
+ls/mech/perl/lib .) at t/01-netasync.t line 10.
t/02-changedefault1.t .......... ok
t/02-changedefault2.t .......... ok

Test Summary Report
-------------------
t/01-http-tiny-paranoid.t    (Wstat: 65280 Tests: 0 Failed: 0)
  Non-zero exit status: 255
Files=13, Tests=18, 22 wallclock secs ( 0.14 usr +  0.09 sys =  0.23 C
+PU)
Result: FAIL
Failed 1/13 test programs. 0/18 subtests failed.
gmake: *** [Makefile:903: test_dynamic] Error 255
-> FAIL Installing Future::HTTP failed. See \.cpanm\work\1546369591.14
+828\build.log for details. Retry with --force to force install it.
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