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> /tmp/stackage-build2451$ stack unpack regex-compat-0.95.1@sha256:4edfd508d7b65f242e416bbf2ea754d6823440c89776547f947c4096ab25f379
Unpacked regex-compat-0.95.1 to /tmp/stackage-build2451/regex-compat-0.95.1/
> /tmp/stackage-build2451/regex-compat-0.95.1$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
[1 of 1] Compiling Main             ( Setup.hs, Setup.o )
Linking Setup ...
> /tmp/stackage-build2451/regex-compat-0.95.1$ ./Setup configure --package-db=clear --package-db=global --package-db=/home/circleci/project/builds/nightly/pkgdb --libdir=/home/circleci/project/builds/nightly/lib --bindir=/home/circleci/project/builds/nightly/bin --datadir=/home/circleci/project/builds/nightly/share --libexecdir=/home/circleci/project/builds/nightly/libexec --sysconfdir=/home/circleci/project/builds/nightly/etc --docdir=/home/circleci/project/builds/nightly/doc/regex-compat-0.95.1 --htmldir=/home/circleci/project/builds/nightly/doc/regex-compat-0.95.1 --haddockdir=/home/circleci/project/builds/nightly/doc/regex-compat-0.95.1
Configuring regex-compat-0.95.1...
> /tmp/stackage-build2451/regex-compat-0.95.1$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2451/regex-compat-0.95.1$ ./Setup build
Preprocessing library for regex-compat-0.95.1..
Building library for regex-compat-0.95.1..
[1 of 1] Compiling Text.Regex       ( Text/Regex.hs, dist/build/Text/Regex.o )

Text/Regex.hs:50:1: warning: [-Wtabs]
    Tab character found here, and in 24 further locations.
    Please use spaces instead.
   |
50 |               -- end of individual lines respectively, and @\'.\'@ does /not/
   | ^^^^^^^^
> /tmp/stackage-build2451/regex-compat-0.95.1$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2451/regex-compat-0.95.1$ ./Setup copy
Installing library in /home/circleci/project/builds/nightly/lib/x86_64-linux-ghc-8.7.20181121/regex-compat-0.95.1-5rO761oS0ESJhX31zHsVR0
> /tmp/stackage-build2451/regex-compat-0.95.1$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2451/regex-compat-0.95.1$ ./Setup register
Registering library for regex-compat-0.95.1..