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> /tmp/stackage-build2451$ stack unpack regex-compat-tdfa-0.95.1.4@sha256:f4e4ca4b5151d59fe2e8c832f0be8400577b0ae882ade9779190e684e69884cc
Unpacked regex-compat-tdfa-0.95.1.4 to /tmp/stackage-build2451/regex-compat-tdfa-0.95.1.4/
> /tmp/stackage-build2451/regex-compat-tdfa-0.95.1.4$ 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-tdfa-0.95.1.4$ ./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-tdfa-0.95.1.4 --htmldir=/home/circleci/project/builds/nightly/doc/regex-compat-tdfa-0.95.1.4 --haddockdir=/home/circleci/project/builds/nightly/doc/regex-compat-tdfa-0.95.1.4
Configuring regex-compat-tdfa-0.95.1.4...
> /tmp/stackage-build2451/regex-compat-tdfa-0.95.1.4$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2451/regex-compat-tdfa-0.95.1.4$ ./Setup build
Preprocessing library for regex-compat-tdfa-0.95.1.4..
Building library for regex-compat-tdfa-0.95.1.4..
[1 of 1] Compiling Text.Regex       ( Text/Regex.hs, dist/build/Text/Regex.o )

Text/Regex.hs:49:1: warning: [-Wtabs]
    Tab character found here, and in 24 further locations.
    Please use spaces instead.
   |
49 |               -- end of individual lines respectively, and @\'.\'@ does /not/
   | ^^^^^^^^
> /tmp/stackage-build2451/regex-compat-tdfa-0.95.1.4$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2451/regex-compat-tdfa-0.95.1.4$ ./Setup copy
Installing library in /home/circleci/project/builds/nightly/lib/x86_64-linux-ghc-8.7.20181121/regex-compat-tdfa-0.95.1.4-o13uGQz9YZBN8zQp2GhtA
> /tmp/stackage-build2451/regex-compat-tdfa-0.95.1.4$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2451/regex-compat-tdfa-0.95.1.4$ ./Setup register
Registering library for regex-compat-tdfa-0.95.1.4..
> /tmp/stackage-build2451/regex-compat-tdfa-0.95.1.4$ ghc-pkg --no-user-package-db --package-db=/home/circleci/project/builds/nightly/pkgdb hide regex-compat-tdfa-0.95.1.4