Resolving dependencies... Configuring base64-bytestring-1.0.0.1... Configuring base-compat-0.9.1... Building base64-bytestring-1.0.0.1... Building base-compat-0.9.1... Installed base64-bytestring-1.0.0.1 Configuring byteable-0.1.1... Building byteable-0.1.1... Installed base-compat-0.9.1 Configuring bytestring-builder-0.10.8.1.0... Building bytestring-builder-0.10.8.1.0... Installed bytestring-builder-0.10.8.1.0 Configuring call-stack-0.1.0... Configuring cereal-0.5.4.0... Installed byteable-0.1.1 Building call-stack-0.1.0... Building cereal-0.5.4.0... Configuring clock-0.7.2... Installed call-stack-0.1.0 Building clock-0.7.2... Configuring data-default-class-0.1.2.0... Installed clock-0.7.2 Building data-default-class-0.1.2.0... Configuring dlist-0.8.0.2... Installed cereal-0.5.4.0 Building dlist-0.8.0.2... Configuring hourglass-0.2.10... Installed data-default-class-0.1.2.0 Building hourglass-0.2.10... Configuring memory-0.13... Installed dlist-0.8.0.2 Building memory-0.13... Configuring mtl-2.2.1... Installed hourglass-0.2.10 Building mtl-2.2.1... Configuring network-2.6.3.1... Installed memory-0.13 Building network-2.6.3.1... Configuring old-locale-1.0.0.7... Installed mtl-2.2.1 Building old-locale-1.0.0.7... Configuring primitive-0.6.1.0... Installed old-locale-1.0.0.7 Building primitive-0.6.1.0... Configuring stm-2.4.4.1... Installed primitive-0.6.1.0 Building stm-2.4.4.1... Configuring random-1.1... Installed network-2.6.3.1 Building random-1.1... Configuring text-1.2.2.1... Installed stm-2.4.4.1 Building text-1.2.2.1... Configuring time-locale-compat-0.1.1.3... Installed random-1.1 Building time-locale-compat-0.1.1.3... Configuring transformers-compat-0.5.1.4... Installed time-locale-compat-0.1.1.3 Building transformers-compat-0.5.1.4... Configuring unix-compat-0.4.3.1... Installed transformers-compat-0.5.1.4 Building unix-compat-0.4.3.1... Configuring zlib-0.6.1.2... Installed unix-compat-0.4.3.1 Building zlib-0.6.1.2... Installed zlib-0.6.1.2 Configuring HUnit-1.5.0.0... Building HUnit-1.5.0.0... Configuring asn1-types-0.3.2... Installed text-1.2.2.1 Building asn1-types-0.3.2... Installed HUnit-1.5.0.0 Configuring pem-0.2.2... Building pem-0.2.2... Configuring cryptonite-0.20... Installed pem-0.2.2 Configuring regex-base-0.93.2... Installed asn1-types-0.3.2 Building cryptonite-0.20... Building regex-base-0.93.2... Configuring async-2.1.1... Installed regex-base-0.93.2 Building async-2.1.1... Configuring socks-0.5.5... Installed async-2.1.1 Building socks-0.5.5... Configuring exceptions-0.8.3... Installed socks-0.5.5 Building exceptions-0.8.3... Configuring vector-0.11.0.0... Installed exceptions-0.8.3 Building vector-0.11.0.0... Configuring mmorph-1.0.9... Installed cryptonite-0.20 Building mmorph-1.0.9... Configuring tagged-0.8.5... Installed mmorph-1.0.9 Building tagged-0.8.5... Configuring transformers-base-0.4.4... Installed vector-0.11.0.0 Building transformers-base-0.4.4... Installed tagged-0.8.5 Configuring zlib-bindings-0.1.1.5... Building zlib-bindings-0.1.1.5... Installed transformers-base-0.4.4 Configuring mime-types-0.1.0.7... Building mime-types-0.1.0.7... Configuring hashable-1.2.4.0... Installed zlib-bindings-0.1.1.5 Building hashable-1.2.4.0... Configuring blaze-builder-0.4.0.2... Installed hashable-1.2.4.0 Building blaze-builder-0.4.0.2... Configuring parsec-3.1.11... Installed mime-types-0.1.0.7 Building parsec-3.1.11... Configuring readable-0.3.1... Installed blaze-builder-0.4.0.2 Building readable-0.3.1... Configuring asn1-encoding-0.9.4... Installed readable-0.3.1 Building asn1-encoding-0.9.4... Configuring cryptohash-0.11.9... Installed parsec-3.1.11 Building cryptohash-0.11.9... Configuring regex-posix-0.95.2... Installed asn1-encoding-0.9.4 Building regex-posix-0.95.2... Installed cryptohash-0.11.9 Configuring monad-control-1.0.1.0... Installed regex-posix-0.95.2 Configuring case-insensitive-1.2.0.7... Building monad-control-1.0.1.0... Building case-insensitive-1.2.0.7... Configuring unordered-containers-0.2.7.1... Installed monad-control-1.0.1.0 Configuring scientific-0.3.4.9... Installed case-insensitive-1.2.0.7 Building unordered-containers-0.2.7.1... Building scientific-0.3.4.9... Configuring cookie-0.4.2.1... Installed scientific-0.3.4.9 Building cookie-0.4.2.1... Configuring streaming-commons-0.1.16... Installed cookie-0.4.2.1 Building streaming-commons-0.1.16... Configuring network-uri-2.6.1.0... Installed unordered-containers-0.2.7.1 Building network-uri-2.6.1.0... Configuring asn1-parse-0.9.4... Installed network-uri-2.6.1.0 Building asn1-parse-0.9.4... Installed asn1-parse-0.9.4 Configuring lifted-base-0.2.3.8... Building lifted-base-0.2.3.8... Installed streaming-commons-0.1.16 Configuring http-types-0.9.1... Building http-types-0.9.1... Configuring attoparsec-0.13.1.0... Installed lifted-base-0.2.3.8 Building attoparsec-0.13.1.0... Configuring x509-1.6.5... Installed http-types-0.9.1 Building x509-1.6.5... Installed x509-1.6.5 Configuring resourcet-1.1.8.1... Building resourcet-1.1.8.1... Configuring http-client-0.5.4... Installed attoparsec-0.13.1.0 Building http-client-0.5.4... Configuring x509-store-1.6.2... Installed resourcet-1.1.8.1 Building x509-store-1.6.2... Installed x509-store-1.6.2 Configuring aeson-1.0.2.1... Building aeson-1.0.2.1... Configuring io-streams-1.3.5.0... Installed http-client-0.5.4 Building io-streams-1.3.5.0... Configuring x509-validation-1.6.5... Installed io-streams-1.3.5.0 Building x509-validation-1.6.5... Configuring x509-system-1.6.4... Installed x509-validation-1.6.5 Building x509-system-1.6.4... Configuring conduit-1.2.8... Installed x509-system-1.6.4 Building conduit-1.2.8... Installed aeson-1.0.2.1 Configuring io-streams-haproxy-1.0.0.1... Building io-streams-haproxy-1.0.0.1... Configuring snap-core-1.0.1.0... Installed conduit-1.2.8 Building snap-core-1.0.1.0... Configuring github-types-0.1.0.5... Installed io-streams-haproxy-1.0.0.1 Building github-types-0.1.0.5... Configuring tls-1.3.8... Installed github-types-0.1.0.5 Building tls-1.3.8... Installed snap-core-1.0.1.0 Configuring conduit-extra-1.1.15... Building conduit-extra-1.1.15... Configuring snap-server-1.0.1.1... Installed conduit-extra-1.1.15 Installed tls-1.3.8 Configuring connection-0.2.6... Building snap-server-1.0.1.1... Building connection-0.2.6... Installed connection-0.2.6 Configuring http-client-tls-0.3.3... Building http-client-tls-0.3.3... Installed http-client-tls-0.3.3 Configuring http-conduit-2.2.3... Building http-conduit-2.2.3... Installed snap-server-1.0.1.1 Installed http-conduit-2.2.3 Configuring mudbath-0.0.3... Building mudbath-0.0.3... Failed to install mudbath-0.0.3 Build log ( /home/builder/.cabal/logs/mudbath-0.0.3.log ): cabal: Entering directory '/tmp/cabal-tmp-27511/mudbath-0.0.3' Configuring mudbath-0.0.3... Building mudbath-0.0.3... Preprocessing executable 'mudbath' for mudbath-0.0.3... [1 of 5] Compiling Notifications ( Notifications.hs, dist/build/mudbath/mudbath-tmp/Notifications.o ) Notifications.hs:80:5: error: • Non type-variable argument in the constraint: monad-control-1.0.1.0:Control.Monad.Trans.Control.MonadBaseControl IO m (Use FlexibleContexts to permit this) • When checking the inferred type sendRequest :: forall (m :: * -> *). (monad-control-1.0.1.0:Control.Monad.Trans.Control.MonadBaseControl IO m, Control.Monad.IO.Class.MonadIO m, exceptions-0.8.3:Control.Monad.Catch.MonadThrow m) => String -> String -> m () In an equation for ‘notifySlack’: notifySlack ev = do { mbConfig <- runExceptT $ do { team <- ExceptT $ getEnvVar "SLACK_TEAM"; .... }; case mbConfig of { Left _ -> return () Right (team, token) -> sendRequest team token } } where ds = deploymentStatusEventDeploymentStatus ev state = deploymentStatusState ds deployment = deploymentStatusEventDeployment ev repo = deploymentStatusEventRepository ev .... cabal: Leaving directory '/tmp/cabal-tmp-27511/mudbath-0.0.3' cabal: Error: some packages failed to install: mudbath-0.0.3 failed during the building phase. The exception was: ExitFailure 1