Warning: The install command is a part of the legacy v1 style of cabal usage. Please switch to using either the new project style and the new-install command or the legacy v1-install alias as new-style projects will become the default in the next version of cabal-install. Please file a bug if you cannot replicate a working v1- use case with the new-style commands. For more information, see: https://wiki.haskell.org/Cabal/NewBuild Resolving dependencies... Starting StateVar-1.1.1.1 Starting base-orphans-0.8 Starting SHA-1.6.4.4 Starting base-compat-0.10.5 Building StateVar-1.1.1.1 Building base-orphans-0.8 Building SHA-1.6.4.4 Building base-compat-0.10.5 Completed base-orphans-0.8 Starting base64-bytestring-1.0.0.2 Completed StateVar-1.1.1.1 Starting bytestring-builder-0.10.8.2.0 Building base64-bytestring-1.0.0.2 Building bytestring-builder-0.10.8.2.0 Completed bytestring-builder-0.10.8.2.0 Starting cabal-doctest-1.0.6 Building cabal-doctest-1.0.6 Completed base64-bytestring-1.0.0.2 Starting call-stack-0.1.0 Building call-stack-0.1.0 Completed cabal-doctest-1.0.6 Starting colour-2.3.4 Completed base-compat-0.10.5 Starting data-default-class-0.1.2.0 Completed call-stack-0.1.0 Starting dlist-0.8.0.5 Building colour-2.3.4 Building data-default-class-0.1.2.0 Building dlist-0.8.0.5 Completed SHA-1.6.4.4 Starting entropy-0.4.1.4 Completed data-default-class-0.1.2.0 Starting hashable-1.2.7.0 Building hashable-1.2.7.0 Completed dlist-0.8.0.5 Starting haskell-src-exts-1.21.0 Building haskell-src-exts-1.21.0 Building entropy-0.4.1.4 Completed hashable-1.2.7.0 Starting integer-logarithms-1.0.2.2 Completed colour-2.3.4 Starting lens-family-core-1.2.3 Building integer-logarithms-1.0.2.2 Building lens-family-core-1.2.3 Completed entropy-0.4.1.4 Starting natural-transformation-0.4 Building natural-transformation-0.4 Completed integer-logarithms-1.0.2.2 Starting network-3.0.1.0 Completed natural-transformation-0.4 Starting parallel-3.2.2.0 Building parallel-3.2.2.0 Completed lens-family-core-1.2.3 Starting primitive-0.6.4.0 Building primitive-0.6.4.0 Building network-3.0.1.0 Completed parallel-3.2.2.0 Starting random-1.1 Building random-1.1 Completed random-1.1 Starting reflection-2.1.4 Building reflection-2.1.4 Completed network-3.0.1.0 Starting semigroups-0.18.5 Building semigroups-0.18.5 Completed semigroups-0.18.5 Starting tagged-0.8.6 Completed reflection-2.1.4 Starting th-abstraction-0.2.10.0 Building tagged-0.8.6 Building th-abstraction-0.2.10.0 Completed primitive-0.6.4.0 Starting time-locale-compat-0.1.1.5 Building time-locale-compat-0.1.1.5 Completed tagged-0.8.6 Starting transformers-compat-0.6.2 Completed time-locale-compat-0.1.1.5 Starting void-0.7.2 Building transformers-compat-0.6.2 Building void-0.7.2 Completed th-abstraction-0.2.10.0 Starting zlib-0.6.2 Completed void-0.7.2 Starting contravariant-1.5 Building zlib-0.6.2 Building contravariant-1.5 Completed transformers-compat-0.6.2 Starting gitrev-1.3.1 Building gitrev-1.3.1 Completed contravariant-1.5 Starting unordered-containers-0.2.10.0 Completed gitrev-1.3.1 Starting case-insensitive-1.2.0.11 Building unordered-containers-0.2.10.0 Building case-insensitive-1.2.0.11 Completed zlib-0.6.2 Starting async-2.2.1 Building async-2.2.1 Completed case-insensitive-1.2.0.11 Starting ansi-terminal-0.9 Building ansi-terminal-0.9 Completed async-2.2.1 Starting lens-family-1.2.3 Building lens-family-1.2.3 Completed ansi-terminal-0.9 Starting uuid-types-1.0.3 Building uuid-types-1.0.3 Completed lens-family-1.2.3 Starting vector-0.12.0.2 Building vector-0.12.0.2 Completed unordered-containers-0.2.10.0 Starting scientific-0.3.6.2 Building scientific-0.3.6.2 Completed uuid-types-1.0.3 Starting distributive-0.6 Building distributive-0.6 Completed scientific-0.3.6.2 Starting transformers-base-0.4.5.2 Building transformers-base-0.4.5.2 Completed distributive-0.6 Starting exceptions-0.10.0 Completed transformers-base-0.4.5.2 Starting streaming-commons-0.2.1.0 Building exceptions-0.10.0 Building streaming-commons-0.2.1.0 Completed exceptions-0.10.0 Starting ansi-wl-pprint-0.6.8.2 Building ansi-wl-pprint-0.6.8.2 Completed ansi-wl-pprint-0.6.8.2 Starting attoparsec-0.13.2.2 Completed streaming-commons-0.2.1.0 Starting comonad-5.0.4 Building attoparsec-0.13.2.2 Building comonad-5.0.4 Completed comonad-5.0.4 Starting freer-simple-1.2.1.0 Building freer-simple-1.2.1.0 Completed attoparsec-0.13.2.2 Starting temporary-1.3 Building temporary-1.3 Completed temporary-1.3 Starting optparse-applicative-0.14.3.0 Building optparse-applicative-0.14.3.0 Completed freer-simple-1.2.1.0 Starting bifunctors-5.5.3 Building bifunctors-5.5.3 Completed vector-0.12.0.2 Starting websockets-0.12.5.3 Building websockets-0.12.5.3 Completed optparse-applicative-0.14.3.0 Starting aeson-1.4.2.0 Building aeson-1.4.2.0 Completed websockets-0.12.5.3 Completed bifunctors-5.5.3 Starting semigroupoids-5.3.2 Starting profunctors-5.3 Building profunctors-5.3 Building semigroupoids-5.3.2 Completed profunctors-5.3 Starting proto-lens-0.5.0.0 Building proto-lens-0.5.0.0 Completed semigroupoids-5.3.2 Starting lens-labels-0.3.0.1 Building lens-labels-0.3.0.1 Completed lens-labels-0.3.0.1 Starting invariant-0.5.1 Building invariant-0.5.1 Completed aeson-1.4.2.0 Starting free-5.1 Completed invariant-0.5.1 Building free-5.1 Completed haskell-src-exts-1.21.0 Completed proto-lens-0.5.0.0 Starting proto-lens-runtime-0.5.0.0 Starting proto-lens-protoc-0.5.0.0 Building proto-lens-protoc-0.5.0.0 Building proto-lens-runtime-0.5.0.0 Completed proto-lens-runtime-0.5.0.0 Completed free-5.1 Starting adjunctions-4.4 Building adjunctions-4.4 Completed proto-lens-protoc-0.5.0.0 Starting proto-lens-setup-0.4.0.2 Building proto-lens-setup-0.4.0.2 Completed adjunctions-4.4 Starting kan-extensions-5.2 Building kan-extensions-5.2 Completed proto-lens-setup-0.4.0.2 Starting sc2-proto-0.1.0.2 Building sc2-proto-0.1.0.2 Failed to install sc2-proto-0.1.0.2 Build log ( /home/builder/.cabal/logs/ghc-8.6.3/sc2-proto-0.1.0.2-5CJdaJnerynAriUeap4HVp.log ): cabal: Entering directory '/tmp/cabal-tmp-31718/sc2-proto-0.1.0.2' [1 of 1] Compiling Main ( /tmp/cabal-tmp-31718/sc2-proto-0.1.0.2/dist/setup/setup.hs, /tmp/cabal-tmp-31718/sc2-proto-0.1.0.2/dist/setup/Main.o ) Linking /tmp/cabal-tmp-31718/sc2-proto-0.1.0.2/dist/setup/setup ... Configuring sc2-proto-0.1.0.2... ========== Error: couldn't find the executable "protoc" in your $PATH. Follow the installation instructions at https://google.github.io/proto-lens/installing-protoc.html . ========== Missing executable "protoc" CallStack (from HasCallStack): error, called at src/Data/ProtoLens/Setup.hs:416:13 in proto-lens-setup-0.4.0.2-ERYcCgtzfAtHJKgAVh2i58:Data.ProtoLens.Setup cabal: Leaving directory '/tmp/cabal-tmp-31718/sc2-proto-0.1.0.2' Completed kan-extensions-5.2 cabal: Error: some packages failed to install: sc2-lowlevel-0.1.0.0-GCiqTOQjqc38qmtCMlO6ph depends on sc2-lowlevel-0.1.0.0 which failed to install. sc2-proto-0.1.0.2-5CJdaJnerynAriUeap4HVp failed during the building phase. The exception was: ExitFailure 1