build failure on Ubuntu armhf virtual builder

[LocutusOfBorg]

Hi, I don't have many clues about why this is failing on Ubuntu, but not in Debian, and only with some specific configurations (e.g. pbuilder with qemu armhf environment is fine, official builders aren't).

Dumping the testsuite failures doesn't help, because the content of the file seems a pointer to the file itself:
code:

echo "**** DUMPING LOG ****" ; cat dist-ghc/test/http-conduit-2.1.11-test.log ; echo "**** END LOG ****"

**** DUMPING LOG ****
Test suite test: RUNNING...
Test suite test: FAIL
Test suite logged to: dist-ghc/test/http-conduit-2.1.11-test.log
**** END LOG ****

Do you have any clue? this is a complete failure log:
https://launchpad.net/ubuntu/+source/haskell-http-conduit/2.1.11-1build2/+build/10594992
https://launchpadlibrarian.net/278366738/buildlog_ubuntu-yakkety-armhf.haskell-http-conduit_2.1.11-1build2_BUILDING.txt.gz

[snip]
Dependency utf8-string -any: using utf8-string-1.0.1.1
Dependency wai >=3.0 && <3.3: using wai-3.2.1.1
Dependency wai-conduit -any: using wai-conduit-3.0.0.3
Dependency warp >=3.0.0.2 && <3.3: using warp-3.2.7
Dependency warp-tls -any: using warp-tls-3.2.2
Using Cabal-1.22.5.0 compiled by ghc-7.10
Using compiler: ghc-7.10.3
Using install prefix: /usr
Binaries installed in: /usr/bin
Libraries installed in:
/usr/lib/haskell-packages/ghc/lib/arm-linux-ghc-7.10.3/http-conduit-2.1.11-D10qfUuGpPv9XQNegsMjuL
Private binaries installed in: /usr/lib
Data files installed in: /usr/share/http-conduit
Documentation installed in:
/usr/share/doc/arm-linux-ghc-7.10.3/http-conduit-2.1.11
Configuration files installed in: /usr/etc
No alex found
Using ar found on system at: /usr/bin/ar
No c2hs found
No cpphs found
Using gcc version 6.1.1 found on system at: /usr/bin/gcc
Using ghc version 7.10.3 found on system at: /usr/bin/ghc
Using ghc-pkg version 7.10.3 found on system at: /usr/bin/ghc-pkg
No ghcjs found
No ghcjs-pkg found
No greencard found
Using haddock version 2.16.1 found on system at: /usr/bin/haddock
No happy found
Using haskell-suite found on system at: haskell-suite-dummy-location
Using haskell-suite-pkg found on system at: haskell-suite-pkg-dummy-location
No hmake found
Using hpc version 0.67 found on system at: /usr/bin/hpc
Using hsc2hs version 0.67 found on system at: /usr/bin/hsc2hs
Using hscolour version 1.24 found on system at: /usr/bin/HsColour
No jhc found
Using ld found on system at: /usr/bin/ld
No lhc found
No lhc-pkg found
No pkg-config found
Using strip version 2.27 found on system at: /usr/bin/strip
Using tar found on system at: /bin/tar
No uhc found
touch configure-ghc-stamp
. /usr/share/haskell-devscripts/Dh_Haskell.sh && \
build_recipe
Running debian/hlibrary.setup build --builddir=dist-ghc
Building http-conduit-2.1.11...
Preprocessing library http-conduit-2.1.11...
[1 of 3] Compiling Network.HTTP.Client.Conduit ( Network/HTTP/Client/Conduit.hs, dist-ghc/build/Network/HTTP/Client/Conduit.o )

Network/HTTP/Client/Conduit.hs:52:1: Warning:
    The import of ‘Network.HTTP.Client’ is redundant
      except perhaps to import instances from ‘Network.HTTP.Client’
    To import instances alone, use: import Network.HTTP.Client()
[2 of 3] Compiling Network.HTTP.Simple ( Network/HTTP/Simple.hs, dist-ghc/build/Network/HTTP/Simple.o )

Network/HTTP/Simple.hs:89:1: Warning:
    The import of ‘Data.Default.Class’ is redundant
      except perhaps to import instances from ‘Data.Default.Class’
    To import instances alone, use: import Data.Default.Class()
[3 of 3] Compiling Network.HTTP.Conduit ( Network/HTTP/Conduit.hs, dist-ghc/build/Network/HTTP/Conduit.o )

Network/HTTP/Conduit.hs:237:1: Warning:
    The import of ‘Control.Applicative’ is redundant
      except perhaps to import instances from ‘Control.Applicative’
    To import instances alone, use: import Control.Applicative()

Network/HTTP/Conduit.hs:238:1: Warning:
    The import of ‘Control.Exception.Lifted’ is redundant
      except perhaps to import instances from ‘Control.Exception.Lifted’
    To import instances alone, use: import Control.Exception.Lifted()
[1 of 3] Compiling Network.HTTP.Client.Conduit ( Network/HTTP/Client/Conduit.hs, dist-ghc/build/Network/HTTP/Client/Conduit.p_o )

Network/HTTP/Client/Conduit.hs:52:1: Warning:
    The import of ‘Network.HTTP.Client’ is redundant
      except perhaps to import instances from ‘Network.HTTP.Client’
    To import instances alone, use: import Network.HTTP.Client()
[2 of 3] Compiling Network.HTTP.Simple ( Network/HTTP/Simple.hs, dist-ghc/build/Network/HTTP/Simple.p_o )

Network/HTTP/Simple.hs:89:1: Warning:
    The import of ‘Data.Default.Class’ is redundant
      except perhaps to import instances from ‘Data.Default.Class’
    To import instances alone, use: import Data.Default.Class()
[3 of 3] Compiling Network.HTTP.Conduit ( Network/HTTP/Conduit.hs, dist-ghc/build/Network/HTTP/Conduit.p_o )

Network/HTTP/Conduit.hs:237:1: Warning:
    The import of ‘Control.Applicative’ is redundant
      except perhaps to import instances from ‘Control.Applicative’
    To import instances alone, use: import Control.Applicative()

Network/HTTP/Conduit.hs:238:1: Warning:
    The import of ‘Control.Exception.Lifted’ is redundant
      except perhaps to import instances from ‘Control.Exception.Lifted’
    To import instances alone, use: import Control.Exception.Lifted()
In-place registering http-conduit-2.1.11...
Preprocessing test suite 'test' for http-conduit-2.1.11...
[1 of 2] Compiling CookieTest       ( test/CookieTest.hs, dist-ghc/build/test/test-tmp/CookieTest.o )

test/CookieTest.hs:10:1: Warning:
    The import of ‘Data.Monoid’ is redundant
      except perhaps to import instances from ‘Data.Monoid’
    To import instances alone, use: import Data.Monoid()

test/CookieTest.hs:18:30: Warning:
    In the use of ‘parseUrl’
    (imported from Network.HTTP.Conduit, but defined in http-client-0.4.31:Network.HTTP.Client.Request):
    Deprecated: "Please use parseUrlThrow, parseRequest, or parseRequest_ instead"
[2 of 2] Compiling Main             ( test/main.hs, dist-ghc/build/test/test-tmp/Main.o )

test/main.hs:28:1: Warning:
    The import item ‘HostPreference(..)’ suggests that
    ‘HostPreference’ has (in-scope) constructors or class methods,
    but it has none

test/main.hs:28:1: Warning:
    The import of ‘HostPreference’
    from module ‘Data.Conduit.Network’ is redundant

test/main.hs:181:24: Warning:
    In the use of ‘parseUrl’
    (imported from Network.HTTP.Conduit, but defined in http-client-0.4.31:Network.HTTP.Client.Request):
    Deprecated: "Please use parseUrlThrow, parseRequest, or parseRequest_ instead"

test/main.hs:182:13: Warning:
    In the use of ‘withManager’ (imported from Network.HTTP.Conduit):
    Deprecated: "Please use newManager tlsManagerSettings"

test/main.hs:188:24: Warning:
    In the use of ‘parseUrl’
    (imported from Network.HTTP.Conduit, but defined in http-client-0.4.31:Network.HTTP.Client.Request):
    Deprecated: "Please use parseUrlThrow, parseRequest, or parseRequest_ instead"

test/main.hs:189:13: Warning:
    In the use of ‘withManager’ (imported from Network.HTTP.Conduit):
    Deprecated: "Please use newManager tlsManagerSettings"

test/main.hs:193:24: Warning:
    In the use of ‘parseUrl’
    (imported from Network.HTTP.Conduit, but defined in http-client-0.4.31:Network.HTTP.Client.Request):
    Deprecated: "Please use parseUrlThrow, parseRequest, or parseRequest_ instead"

test/main.hs:194:13: Warning:
    In the use of ‘withManager’ (imported from Network.HTTP.Conduit):
    Deprecated: "Please use newManager tlsManagerSettings"

test/main.hs:198:24: Warning:
    In the use of ‘parseUrl’
    (imported from Network.HTTP.Conduit, but defined in http-client-0.4.31:Network.HTTP.Client.Request):
    Deprecated: "Please use parseUrlThrow, parseRequest, or parseRequest_ instead"

test/main.hs:199:13: Warning:
    In the use of ‘withManager’ (imported from Network.HTTP.Conduit):
    Deprecated: "Please use newManager tlsManagerSettings"

test/main.hs:203:24: Warning:
    In the use of ‘parseUrl’
    (imported from Network.HTTP.Conduit, but defined in http-client-0.4.31:Network.HTTP.Client.Request):
    Deprecated: "Please use parseUrlThrow, parseRequest, or parseRequest_ instead"

test/main.hs:204:13: Warning:
    In the use of ‘withManager’ (imported from Network.HTTP.Conduit):
    Deprecated: "Please use newManager tlsManagerSettings"

test/main.hs:208:24: Warning:
    In the use of ‘parseUrl’
    (imported from Network.HTTP.Conduit, but defined in http-client-0.4.31:Network.HTTP.Client.Request):
    Deprecated: "Please use parseUrlThrow, parseRequest, or parseRequest_ instead"

test/main.hs:209:13: Warning:
    In the use of ‘withManager’ (imported from Network.HTTP.Conduit):
    Deprecated: "Please use newManager tlsManagerSettings"

test/main.hs:214:24: Warning:
    In the use of ‘parseUrl’
    (imported from Network.HTTP.Conduit, but defined in http-client-0.4.31:Network.HTTP.Client.Request):
    Deprecated: "Please use parseUrlThrow, parseRequest, or parseRequest_ instead"

test/main.hs:215:13: Warning:
    In the use of ‘withManager’ (imported from Network.HTTP.Conduit):
    Deprecated: "Please use newManager tlsManagerSettings"

test/main.hs:219:24: Warning:
    In the use of ‘parseUrl’
    (imported from Network.HTTP.Conduit, but defined in http-client-0.4.31:Network.HTTP.Client.Request):
    Deprecated: "Please use parseUrlThrow, parseRequest, or parseRequest_ instead"

test/main.hs:225:25: Warning:
    In the use of ‘withManagerSettings’
    (imported from Network.HTTP.Conduit):
    Deprecated: "Please use newManager"

test/main.hs:230:13: Warning:
    In the use of ‘withManager’ (imported from Network.HTTP.Conduit):
    Deprecated: "Please use newManager tlsManagerSettings"

test/main.hs:231:33: Warning:
    In the use of ‘parseUrl’
    (imported from Network.HTTP.Conduit, but defined in http-client-0.4.31:Network.HTTP.Client.Request):
    Deprecated: "Please use parseUrlThrow, parseRequest, or parseRequest_ instead"

test/main.hs:232:33: Warning:
    In the use of ‘parseUrl’
    (imported from Network.HTTP.Conduit, but defined in http-client-0.4.31:Network.HTTP.Client.Request):
    Deprecated: "Please use parseUrlThrow, parseRequest, or parseRequest_ instead"

test/main.hs:240:13: Warning:
    In the use of ‘withManager’ (imported from Network.HTTP.Conduit):
    Deprecated: "Please use newManager tlsManagerSettings"

test/main.hs:241:33: Warning:
    In the use of ‘parseUrl’
    (imported from Network.HTTP.Conduit, but defined in http-client-0.4.31:Network.HTTP.Client.Request):
    Deprecated: "Please use parseUrlThrow, parseRequest, or parseRequest_ instead"

test/main.hs:248:13: Warning:
    In the use of ‘withManager’ (imported from Network.HTTP.Conduit):
    Deprecated: "Please use newManager tlsManagerSettings"

test/main.hs:249:33: Warning:
    In the use of ‘parseUrl’
    (imported from Network.HTTP.Conduit, but defined in http-client-0.4.31:Network.HTTP.Client.Request):
    Deprecated: "Please use parseUrlThrow, parseRequest, or parseRequest_ instead"

test/main.hs:255:13: Warning:
    In the use of ‘withManager’ (imported from Network.HTTP.Conduit):
    Deprecated: "Please use newManager tlsManagerSettings"

test/main.hs:256:33: Warning:
    In the use of ‘parseUrl’
    (imported from Network.HTTP.Conduit, but defined in http-client-0.4.31:Network.HTTP.Client.Request):
    Deprecated: "Please use parseUrlThrow, parseRequest, or parseRequest_ instead"

test/main.hs:261:13: Warning:
    In the use of ‘withManager’ (imported from Network.HTTP.Conduit):
    Deprecated: "Please use newManager tlsManagerSettings"

test/main.hs:263:41: Warning:
    In the use of ‘parseUrl’
    (imported from Network.HTTP.Conduit, but defined in http-client-0.4.31:Network.HTTP.Client.Request):
    Deprecated: "Please use parseUrlThrow, parseRequest, or parseRequest_ instead"

test/main.hs:275:28: Warning:
    In the use of ‘parseUrl’
    (imported from Network.HTTP.Conduit, but defined in http-client-0.4.31:Network.HTTP.Client.Request):
    Deprecated: "Please use parseUrlThrow, parseRequest, or parseRequest_ instead"

test/main.hs:277:22: Warning:
    In the use of ‘withManager’ (imported from Network.HTTP.Conduit):
    Deprecated: "Please use newManager tlsManagerSettings"

test/main.hs:285:13: Warning:
    In the use of ‘withManager’ (imported from Network.HTTP.Conduit):
    Deprecated: "Please use newManager tlsManagerSettings"

test/main.hs:287:41: Warning:
    In the use of ‘parseUrl’
    (imported from Network.HTTP.Conduit, but defined in http-client-0.4.31:Network.HTTP.Client.Request):
    Deprecated: "Please use parseUrlThrow, parseRequest, or parseRequest_ instead"

test/main.hs:302:20: Warning:
    In the use of ‘parseUrl’
    (imported from Network.HTTP.Conduit, but defined in http-client-0.4.31:Network.HTTP.Client.Request):
    Deprecated: "Please use parseUrlThrow, parseRequest, or parseRequest_ instead"

test/main.hs:303:13: Warning:
    In the use of ‘withManager’ (imported from Network.HTTP.Conduit):
    Deprecated: "Please use newManager tlsManagerSettings"

test/main.hs:311:20: Warning:
    In the use of ‘parseUrl’
    (imported from Network.HTTP.Conduit, but defined in http-client-0.4.31:Network.HTTP.Client.Request):
    Deprecated: "Please use parseUrlThrow, parseRequest, or parseRequest_ instead"

test/main.hs:312:13: Warning:
    In the use of ‘withManager’ (imported from Network.HTTP.Conduit):
    Deprecated: "Please use newManager tlsManagerSettings"

test/main.hs:319:20: Warning:
    In the use of ‘parseUrl’
    (imported from Network.HTTP.Conduit, but defined in http-client-0.4.31:Network.HTTP.Client.Request):
    Deprecated: "Please use parseUrlThrow, parseRequest, or parseRequest_ instead"

test/main.hs:320:13: Warning:
    In the use of ‘withManager’ (imported from Network.HTTP.Conduit):
    Deprecated: "Please use newManager tlsManagerSettings"

test/main.hs:325:20: Warning:
    In the use of ‘parseUrl’
    (imported from Network.HTTP.Conduit, but defined in http-client-0.4.31:Network.HTTP.Client.Request):
    Deprecated: "Please use parseUrlThrow, parseRequest, or parseRequest_ instead"

test/main.hs:326:13: Warning:
    In the use of ‘withManager’ (imported from Network.HTTP.Conduit):
    Deprecated: "Please use newManager tlsManagerSettings"

test/main.hs:331:20: Warning:
    In the use of ‘parseUrl’
    (imported from Network.HTTP.Conduit, but defined in http-client-0.4.31:Network.HTTP.Client.Request):
    Deprecated: "Please use parseUrlThrow, parseRequest, or parseRequest_ instead"

test/main.hs:332:13: Warning:
    In the use of ‘withManager’ (imported from Network.HTTP.Conduit):
    Deprecated: "Please use newManager tlsManagerSettings"

test/main.hs:340:20: Warning:
    In the use of ‘parseUrl’
    (imported from Network.HTTP.Conduit, but defined in http-client-0.4.31:Network.HTTP.Client.Request):
    Deprecated: "Please use parseUrlThrow, parseRequest, or parseRequest_ instead"

test/main.hs:341:13: Warning:
    In the use of ‘withManager’ (imported from Network.HTTP.Conduit):
    Deprecated: "Please use newManager tlsManagerSettings"

test/main.hs:349:20: Warning:
    In the use of ‘parseUrl’
    (imported from Network.HTTP.Conduit, but defined in http-client-0.4.31:Network.HTTP.Client.Request):
    Deprecated: "Please use parseUrlThrow, parseRequest, or parseRequest_ instead"

test/main.hs:350:13: Warning:
    In the use of ‘withManager’ (imported from Network.HTTP.Conduit):
    Deprecated: "Please use newManager tlsManagerSettings"

test/main.hs:361:38: Warning:
    In the use of ‘withManager’ (imported from Network.HTTP.Conduit):
    Deprecated: "Please use newManager tlsManagerSettings"

test/main.hs:362:33: Warning:
    In the use of ‘parseUrl’
    (imported from Network.HTTP.Conduit, but defined in http-client-0.4.31:Network.HTTP.Client.Request):
    Deprecated: "Please use parseUrlThrow, parseRequest, or parseRequest_ instead"

test/main.hs:394:42: Warning:
    In the use of ‘withManager’ (imported from Network.HTTP.Conduit):
    Deprecated: "Please use newManager tlsManagerSettings"

test/main.hs:395:33: Warning:
    In the use of ‘parseUrl’
    (imported from Network.HTTP.Conduit, but defined in http-client-0.4.31:Network.HTTP.Client.Request):
    Deprecated: "Please use parseUrlThrow, parseRequest, or parseRequest_ instead"

test/main.hs:403:21: Warning:
    In the use of ‘parseUrl’
    (imported from Network.HTTP.Conduit, but defined in http-client-0.4.31:Network.HTTP.Client.Request):
    Deprecated: "Please use parseUrlThrow, parseRequest, or parseRequest_ instead"

test/main.hs:405:20: Warning:
    In the use of ‘withManager’ (imported from Network.HTTP.Conduit):
    Deprecated: "Please use newManager tlsManagerSettings"

test/main.hs:410:21: Warning:
    In the use of ‘parseUrl’
    (imported from Network.HTTP.Conduit, but defined in http-client-0.4.31:Network.HTTP.Client.Request):
    Deprecated: "Please use parseUrlThrow, parseRequest, or parseRequest_ instead"

test/main.hs:412:13: Warning:
    In the use of ‘withManagerSettings’
    (imported from Network.HTTP.Conduit):
    Deprecated: "Please use newManager"

test/main.hs:412:33: Warning:
    In the use of ‘conduitManagerSettings’
    (imported from Network.HTTP.Conduit):
    Deprecated: "Use tlsManagerSettings"

test/main.hs:422:20: Warning:
    In the use of ‘parseUrl’
    (imported from Network.HTTP.Conduit, but defined in http-client-0.4.31:Network.HTTP.Client.Request):
    Deprecated: "Please use parseUrlThrow, parseRequest, or parseRequest_ instead"

test/main.hs:423:13: Warning:
    In the use of ‘withManager’ (imported from Network.HTTP.Conduit):
    Deprecated: "Please use newManager tlsManagerSettings"

test/main.hs:429:20: Warning:
    In the use of ‘parseUrl’
    (imported from Network.HTTP.Conduit, but defined in http-client-0.4.31:Network.HTTP.Client.Request):
    Deprecated: "Please use parseUrlThrow, parseRequest, or parseRequest_ instead"

test/main.hs:430:13: Warning:
    In the use of ‘withManager’ (imported from Network.HTTP.Conduit):
    Deprecated: "Please use newManager tlsManagerSettings"

test/main.hs:452:13: Warning:
    In the use of ‘withManager’ (imported from Network.HTTP.Conduit):
    Deprecated: "Please use newManager tlsManagerSettings"

test/main.hs:453:24: Warning:
    In the use of ‘parseUrl’
    (imported from Network.HTTP.Conduit, but defined in http-client-0.4.31:Network.HTTP.Client.Request):
    Deprecated: "Please use parseUrlThrow, parseRequest, or parseRequest_ instead"

test/main.hs:461:20: Warning:
    In the use of ‘parseUrl’
    (imported from Network.HTTP.Conduit, but defined in http-client-0.4.31:Network.HTTP.Client.Request):
    Deprecated: "Please use parseUrlThrow, parseRequest, or parseRequest_ instead"

test/main.hs:466:9: Warning:
    In the use of ‘withManager’ (imported from Network.HTTP.Conduit):
    Deprecated: "Please use newManager tlsManagerSettings"

test/main.hs:472:37: Warning:
    In the use of ‘parseUrl’
    (imported from Network.HTTP.Conduit, but defined in http-client-0.4.31:Network.HTTP.Client.Request):
    Deprecated: "Please use parseUrlThrow, parseRequest, or parseRequest_ instead"
Linking dist-ghc/build/test/test ...
touch build-ghc-stamp
. /usr/share/haskell-devscripts/Dh_Haskell.sh && \
check_recipe
Running debian/hlibrary.setup test --builddir=dist-ghc --show-details=direct
Running 1 test suites...
Test suite test: RUNNING...

ipParseTests
  Valid IP
  Digit Too High
  Too Many Segments
  Chars in IP
domainMatchingTests
  Should Match
  Same Domain
  Sibling Domain
  Parent Domain
  Checking for Naive suffix-check
defaultPathTests
  Basic default path test
  Basic populated default path
  Default path from request with GET params works
  Getting a default path that ends in a slash
  Getting a short default path
pathMatchingTests
  Same paths match
  Putting slash at end
  Not putting slash at end
  Diverging paths don't match
equalityTests
  The same cookie should be equal to itself
  Changing extra options shouldn't change equality
  Changing a cookie's domain should change its equality
removeTests
  Removing a cookie works
  Removing a nonexistant cookie doesn't work
  Removing the correct cookie
evictionTests
  Testing eviction
  Evicting from empty cookie jar
sendingTests
  Updates last access time upon using cookies
  Host-only flag matches exact host
  Host-only flag doesn't match subdomain
  Domain matching works properly
  Path matching works
  Path matching fails when it should
  Path matching succeeds when request has GET params
  Secure flag filters correctly
  Http-only flag filters correctly
  Sorting works correctly
  Inserting cookie header works
receivingTests
  Can receive set-cookie
  Receiving a Set-Cookie with a trailing dot on the domain
  Receiving a Set-Cookie with a leading dot on the domain
  Set-Cookie with no domain
  Set-Cookie with empty domain
  Set-Cookie with non-matching domain
  Host-only flag gets set
  Host-only flag doesn't get set
  Http-only flag gets set
  Http-only flag doesn't get set
  Checking non http request gets dropped
  Name gets set correctly
  Value gets set correctly
  Expiry gets set correctly
  Expiry gets set based on max age if no expiry is given
  Expiry gets set based on given value if no max age is given
  Expiry gets set to a future date if no expiry and no max age are given
  Path gets set correctly when nonexistant
  Path gets set correctly
  Creation time gets set correctly
  Last access time gets set correctly
  Persistent flag gets set correctly
  Existing cookie gets updated
  Creation time gets updated in existing cookie
  Existing http-only cookie gets dropped
  Secure flag gets set correctly
  Max-Age flag gets set correctly
  Max-Age is preferred over Expires
monoidTest
  Monoid prefers more recent cookies
simpleHttp
  gets homepage
  throws exception on 404
httpLbs
  preserves 'set-cookie' headers
  redirects set cookies
  user-defined cookie jar works
  user-defined cookie jar is not ignored when redirection is disabled
  cookie jar is available in response
  Cookie header isn't touched when no cookie jar supplied
  Response cookie jar is nothing when request cookie jar is nothing
Test suite test: FAIL
Test suite logged to: dist-ghc/test/http-conduit-2.1.11-test.log
0 of 1 test suites (0 of 1 test cases) passed.
make: *** [check-ghc-stamp] Error 1
/usr/share/cdbs/1/class/hlibrary.mk:154: recipe for target 'check-ghc-stamp' failed
dpkg-buildpackage: error: debian/rules build-arch gave error exit status 2

[snoyberg]

Looks like this would make more sense on the snoyberg/http-client repo then here. But I don't have any thoughts on why this is failing, sorry.

[LocutusOfBorg]

lets followup there :)