Quoting @sternenseemann in #111 (comment):

I've experienced the regression tests introduced here failing reliably, but only on x86_64-darwin (not aarch64-darwin, aarch64-linux, x86_64-linux). Sample Log:

Running phase: setupCompilerEnvironmentPhase
Build with /nix/store/jw4wdi097y48kpwsyg9v4xrff0dzvd96-ghc-9.6.5.
Running phase: unpackPhase
unpacking source archive /nix/store/hjv5waxjisv2nww8vklkqlzwcfiw12a4-ad-4.5.6.tar.gz
source root is ad-4.5.6
setting SOURCE_DATE_EPOCH to timestamp 1000000000 of file ad-4.5.6/tests/Regression.hs
Running phase: patchPhase
Running phase: compileBuildDriverPhase
setupCompileFlags: -package-db=/private/tmp/nix-build-ad-4.5.6.drv-0/tmp.StUeKIOmN0/setup-package.conf.d -j2 -threaded -rtsopts
[1 of 2] Compiling Main             ( Setup.lhs, /private/tmp/nix-build-ad-4.5.6.drv-0/tmp.StUeKIOmN0/Main.o )
[2 of 2] Linking Setup
Running phase: configurePhase
configureFlags: --verbose --prefix=/nix/store/7pbzrd2r6ivdfjfnc0lsy36q1r59yp7q-ad-4.5.6 --libdir=$prefix/lib/$compiler/lib --libsubdir=$abi/$libname --docdir=/nix/store/l7bxaac6am339ylrkf3wl7rhsgns91mi-ad-4.5.6-doc/share/doc/ad-4.5.6 --with-gcc=clang --package-db=/private/tmp/nix-build-ad-4.5.6.drv-0/tmp.StUeKIOmN0/package.conf.d --ghc-options=-j2 --enable-library-profiling --profiling-detail=exported-functions --disable-profiling --enable-shared --disable-coverage --enable-static --disable-executable-dynamic --enable-tests --disable-benchmarks --enable-library-vanilla --disable-library-for-ghci --disable-split-sections --enable-library-stripping --enable-executable-stripping --ghc-options=-haddock --extra-lib-dirs=/nix/store/j2l19sql3mc73fdmazzv8nw0jvq3hbdq-ncurses-6.4/lib --extra-lib-dirs=/nix/store/4c21nhy3hylrhxvllri3s9bn3yajqw74-libffi-3.4.6/lib --extra-lib-dirs=/nix/store/yk9s4pfjyfjch28gan4as6k6acw6jk6s-gmp-with-cxx-6.3.0/lib --extra-lib-dirs=/nix/store/m0mbzn96iwg89135rz58h7il7ar03k8p-libiconv-99/lib --extra-include-dirs=/nix/store/2419grj384lg233jqchamm73il9iyjxg-libcxx-16.0.6-dev/include --extra-lib-dirs=/nix/store/2yjr5xx0qn1cd72lc3l1mw8k90fg5lxs-libcxx-16.0.6/lib --extra-include-dirs=/nix/store/ga55lv3bpi744yxggpcjmkxv8sw5fz10-compiler-rt-libc-16.0.6-dev/include --extra-lib-dirs=/nix/store/6lgq76g4nxaxbi9x48b1bsg994iq5r4v-compiler-rt-libc-16.0.6/lib --extra-framework-dirs=/nix/store/4l6yyr4mxbhr5imn5sr9kbnmfg1cs6mi-apple-framework-CoreFoundation/Library/Frameworks
Using Parsec parser
Configuring ad-4.5.6...
Flags chosen: ffi=False, herbie=False
Dependency adjunctions >=4.4 && <5: using adjunctions-4.4.2
Dependency array >=0.4 && <0.6: using array-0.5.6.0
Dependency base >=4.9 && <5: using base-4.18.2.1
Dependency comonad >=4 && <6: using comonad-5.0.8
Dependency containers >=0.5 && <0.8: using containers-0.6.7
Dependency data-reify >=0.6 && <0.7: using data-reify-0.6.3
Dependency erf >=2.0 && <2.1: using erf-2.0.0.0
Dependency free >=4.6.1 && <6: using free-5.2
Dependency nats >=0.1.2 && <2: using nats-1.1.2
Dependency reflection >=1.4 && <3: using reflection-2.1.8
Dependency semigroups >=0.16 && <1: using semigroups-0.20
Dependency transformers >=0.5.2.0 && <0.7: using transformers-0.6.1.0
Dependency ad: using ad-4.5.6
Dependency base: using base-4.18.2.1
Dependency tasty: using tasty-1.4.3
Dependency tasty-hunit: using tasty-hunit-0.10.1
Source component graph:
    component lib
    component test:regression dependency lib
Configured component graph:
    component ad-4.5.6-1WRJjsCnjTC4FZorB43KOi
        include adjunctions-4.4.2-4iURKUgQrKS7atyO3QSdm7
        include array-0.5.6.0
        include base-4.18.2.1
        include comonad-5.0.8-25mhXRE9C8L1ZZaqNOc9vY
        include containers-0.6.7
        include data-reify-0.6.3-5pvj6HtNJh5K2KS7NgYUmS
        include erf-2.0.0.0-4xz1P35HuR5Dy4ovZUgjCU
        include free-5.2-JGEaoq8reB2HfhNMp3N3Ko
        include nats-1.1.2-1IJUekZt6ps5IWVCKMBPeK
        include reflection-2.1.8-7e35riv9i68DmU1dBKGfFR
        include semigroups-0.20-FifEs3zbUBKDT9bErGELTt
        include transformers-0.6.1.0
    component ad-4.5.6-JkDF2AMK3l65oR2Frifl7S-regression
        include ad-4.5.6-1WRJjsCnjTC4FZorB43KOi
        include base-4.18.2.1
        include tasty-1.4.3-GBUzr5T24qSDiUxn61W8Hz
        include tasty-hunit-0.10.1-B1ADdVA8ZkWIn4pNJBh2N9
Linked component graph:
    unit ad-4.5.6-1WRJjsCnjTC4FZorB43KOi
        include adjunctions-4.4.2-4iURKUgQrKS7atyO3QSdm7
        include array-0.5.6.0
        include base-4.18.2.1
        include comonad-5.0.8-25mhXRE9C8L1ZZaqNOc9vY
        include containers-0.6.7
        include data-reify-0.6.3-5pvj6HtNJh5K2KS7NgYUmS
        include erf-2.0.0.0-4xz1P35HuR5Dy4ovZUgjCU
        include free-5.2-JGEaoq8reB2HfhNMp3N3Ko
        include nats-1.1.2-1IJUekZt6ps5IWVCKMBPeK
        include reflection-2.1.8-7e35riv9i68DmU1dBKGfFR
        include semigroups-0.20-FifEs3zbUBKDT9bErGELTt
        include transformers-0.6.1.0
        Numeric.AD=ad-4.5.6-1WRJjsCnjTC4FZorB43KOi:Numeric.AD,Numeric.AD.Double=ad-4.5.6-1WRJjsCnjTC4FZorB43KOi:Numeric.AD.Double,Numeric.AD.Halley.Double=ad-4.5.6-1WRJjsCnjTC4FZorB43KOi:Numeric.AD.Halley.Double,Numeric.AD.Internal.Dense=ad-4.5.6-1WRJjsCnjTC4FZorB43KOi:Numeric.AD.Internal.Dense,Numeric.AD.Internal.Dense.Representable=ad-4.5.6-1WRJjsCnjTC4FZorB43KOi:Numeric.AD.Internal.Dense.Representable,Numeric.AD.Internal.Doctest=ad-4.5.6-1WRJjsCnjTC4FZorB43KOi:Numeric.AD.Internal.Doctest,Numeric.AD.Internal.Forward=ad-4.5.6-1WRJjsCnjTC4FZorB43KOi:Numeric.AD.Internal.Forward,Numeric.AD.Internal.Forward.Double=ad-4.5.6-1WRJjsCnjTC4FZorB43KOi:Numeric.AD.Internal.Forward.Double,Numeric.AD.Internal.Identity=ad-4.5.6-1WRJjsCnjTC4FZorB43KOi:Numeric.AD.Internal.Identity,Numeric.AD.Internal.Kahn=ad-4.5.6-1WRJjsCnjTC4FZorB43KOi:Numeric.AD.Internal.Kahn,Numeric.AD.Internal.Kahn.Double=ad-4.5.6-1WRJjsCnjTC4FZorB43KOi:Numeric.AD.Internal.Kahn.Double,Numeric.AD.Internal.Kahn.Float=ad-4.5.6-1WRJjsCnjTC4FZorB43KOi:Numeric.AD.Internal.Kahn.Float,Numeric.AD.Internal.On=ad-4.5.6-1WRJjsCnjTC4FZorB43KOi:Numeric.AD.Internal.On,Numeric.AD.Internal.Or=ad-4.5.6-1WRJjsCnjTC4FZorB43KOi:Numeric.AD.Internal.Or,Numeric.AD.Internal.Reverse=ad-4.5.6-1WRJjsCnjTC4FZorB43KOi:Numeric.AD.Internal.Reverse,Numeric.AD.Internal.Reverse.Double=ad-4.5.6-1WRJjsCnjTC4FZorB43KOi:Numeric.AD.Internal.Reverse.Double,Numeric.AD.Internal.Sparse=ad-4.5.6-1WRJjsCnjTC4FZorB43KOi:Numeric.AD.Internal.Sparse,Numeric.AD.Internal.Sparse.Common=ad-4.5.6-1WRJjsCnjTC4FZorB43KOi:Numeric.AD.Internal.Sparse.Common,Numeric.AD.Internal.Sparse.Double=ad-4.5.6-1WRJjsCnjTC4FZorB43KOi:Numeric.AD.Internal.Sparse.Double,Numeric.AD.Internal.Tower=ad-4.5.6-1WRJjsCnjTC4FZorB43KOi:Numeric.AD.Internal.Tower,Numeric.AD.Internal.Tower.Double=ad-4.5.6-1WRJjsCnjTC4FZorB43KOi:Numeric.AD.Internal.Tower.Double,Numeric.AD.Internal.Type=ad-4.5.6-1WRJjsCnjTC4FZorB43KOi:Numeric.AD.Internal.Type,Numeric.AD.Jacobian=ad-4.5.6-1WRJjsCnjTC4FZorB43KOi:Numeric.AD.Jacobian,Numeric.AD.Jet=ad-4.5.6-1WRJjsCnjTC4FZorB43KOi:Numeric.AD.Jet,Numeric.AD.Mode=ad-4.5.6-1WRJjsCnjTC4FZorB43KOi:Numeric.AD.Mode,Numeric.AD.Mode.Dense=ad-4.5.6-1WRJjsCnjTC4FZorB43KOi:Numeric.AD.Mode.Dense,Numeric.AD.Mode.Dense.Representable=ad-4.5.6-1WRJjsCnjTC4FZorB43KOi:Numeric.AD.Mode.Dense.Representable,Numeric.AD.Mode.Forward=ad-4.5.6-1WRJjsCnjTC4FZorB43KOi:Numeric.AD.Mode.Forward,Numeric.AD.Mode.Forward.Double=ad-4.5.6-1WRJjsCnjTC4FZorB43KOi:Numeric.AD.Mode.Forward.Double,Numeric.AD.Mode.Kahn=ad-4.5.6-1WRJjsCnjTC4FZorB43KOi:Numeric.AD.Mode.Kahn,Numeric.AD.Mode.Kahn.Double=ad-4.5.6-1WRJjsCnjTC4FZorB43KOi:Numeric.AD.Mode.Kahn.Double,Numeric.AD.Mode.Reverse=ad-4.5.6-1WRJjsCnjTC4FZorB43KOi:Numeric.AD.Mode.Reverse,Numeric.AD.Mode.Reverse.Double=ad-4.5.6-1WRJjsCnjTC4FZorB43KOi:Numeric.AD.Mode.Reverse.Double,Numeric.AD.Mode.Sparse=ad-4.5.6-1WRJjsCnjTC4FZorB43KOi:Numeric.AD.Mode.Sparse,Numeric.AD.Mode.Sparse.Double=ad-4.5.6-1WRJjsCnjTC4FZorB43KOi:Numeric.AD.Mode.Sparse.Double,Numeric.AD.Mode.Tower=ad-4.5.6-1WRJjsCnjTC4FZorB43KOi:Numeric.AD.Mode.Tower,Numeric.AD.Mode.Tower.Double=ad-4.5.6-1WRJjsCnjTC4FZorB43KOi:Numeric.AD.Mode.Tower.Double,Numeric.AD.Newton=ad-4.5.6-1WRJjsCnjTC4FZorB43KOi:Numeric.AD.Newton,Numeric.AD.Newton.Double=ad-4.5.6-1WRJjsCnjTC4FZorB43KOi:Numeric.AD.Newton.Double,Numeric.AD.Rank1.Dense=ad-4.5.6-1WRJjsCnjTC4FZorB43KOi:Numeric.AD.Rank1.Dense,Numeric.AD.Rank1.Dense.Representable=ad-4.5.6-1WRJjsCnjTC4FZorB43KOi:Numeric.AD.Rank1.Dense.Representable,Numeric.AD.Rank1.Forward=ad-4.5.6-1WRJjsCnjTC4FZorB43KOi:Numeric.AD.Rank1.Forward,Numeric.AD.Rank1.Forward.Double=ad-4.5.6-1WRJjsCnjTC4FZorB43KOi:Numeric.AD.Rank1.Forward.Double,Numeric.AD.Rank1.Halley=ad-4.5.6-1WRJjsCnjTC4FZorB43KOi:Numeric.AD.Rank1.Halley,Numeric.AD.Rank1.Halley.Double=ad-4.5.6-1WRJjsCnjTC4FZorB43KOi:Numeric.AD.Rank1.Halley.Double,Numeric.AD.Rank1.Kahn=ad-4.5.6-1WRJjsCnjTC4FZorB43KOi:Numeric.AD.Rank1.Kahn,Numeric.AD.Rank1.Kahn.Double=ad-4.5.6-1WRJjsCnjTC4FZorB43KOi:Numeric.AD.Rank1.Kahn.Double,Numeric.AD.Rank1.Kahn.Float=ad-4.5.6-1WRJjsCnjTC4FZorB43KOi:Numeric.AD.Rank1.Kahn.Float,Numeric.AD.Rank1.Newton=ad-4.5.6-1WRJjsCnjTC4FZorB43KOi:Numeric.AD.Rank1.Newton,Numeric.AD.Rank1.Newton.Double=ad-4.5.6-1WRJjsCnjTC4FZorB43KOi:Numeric.AD.Rank1.Newton.Double,Numeric.AD.Rank1.Sparse=ad-4.5.6-1WRJjsCnjTC4FZorB43KOi:Numeric.AD.Rank1.Sparse,Numeric.AD.Rank1.Sparse.Double=ad-4.5.6-1WRJjsCnjTC4FZorB43KOi:Numeric.AD.Rank1.Sparse.Double,Numeric.AD.Rank1.Tower=ad-4.5.6-1WRJjsCnjTC4FZorB43KOi:Numeric.AD.Rank1.Tower,Numeric.AD.Rank1.Tower.Double=ad-4.5.6-1WRJjsCnjTC4FZorB43KOi:Numeric.AD.Rank1.Tower.Double
    unit ad-4.5.6-JkDF2AMK3l65oR2Frifl7S-regression
        include ad-4.5.6-1WRJjsCnjTC4FZorB43KOi
        include base-4.18.2.1
        include tasty-1.4.3-GBUzr5T24qSDiUxn61W8Hz
        include tasty-hunit-0.10.1-B1ADdVA8ZkWIn4pNJBh2N9
Ready component graph:
    definite ad-4.5.6-1WRJjsCnjTC4FZorB43KOi
        depends adjunctions-4.4.2-4iURKUgQrKS7atyO3QSdm7
        depends array-0.5.6.0
        depends base-4.18.2.1
        depends comonad-5.0.8-25mhXRE9C8L1ZZaqNOc9vY
        depends containers-0.6.7
        depends data-reify-0.6.3-5pvj6HtNJh5K2KS7NgYUmS
        depends erf-2.0.0.0-4xz1P35HuR5Dy4ovZUgjCU
        depends free-5.2-JGEaoq8reB2HfhNMp3N3Ko
        depends nats-1.1.2-1IJUekZt6ps5IWVCKMBPeK
        depends reflection-2.1.8-7e35riv9i68DmU1dBKGfFR
        depends semigroups-0.20-FifEs3zbUBKDT9bErGELTt
        depends transformers-0.6.1.0
    definite ad-4.5.6-JkDF2AMK3l65oR2Frifl7S-regression
        depends ad-4.5.6-1WRJjsCnjTC4FZorB43KOi
        depends base-4.18.2.1
        depends tasty-1.4.3-GBUzr5T24qSDiUxn61W8Hz
        depends tasty-hunit-0.10.1-B1ADdVA8ZkWIn4pNJBh2N9
Using Cabal-3.10.3.0 compiled by ghc-9.6
Using compiler: ghc-9.6.5
Using install prefix: /nix/store/7pbzrd2r6ivdfjfnc0lsy36q1r59yp7q-ad-4.5.6
Executables installed in:
/nix/store/7pbzrd2r6ivdfjfnc0lsy36q1r59yp7q-ad-4.5.6/bin
Libraries installed in:
/nix/store/7pbzrd2r6ivdfjfnc0lsy36q1r59yp7q-ad-4.5.6/lib/ghc-9.6.5/lib/x86_64-osx-ghc-9.6.5/ad-4.5.6-1WRJjsCnjTC4FZorB43KOi
Dynamic Libraries installed in:
/nix/store/7pbzrd2r6ivdfjfnc0lsy36q1r59yp7q-ad-4.5.6/lib/ghc-9.6.5/lib/x86_64-osx-ghc-9.6.5
Private executables installed in:
/nix/store/7pbzrd2r6ivdfjfnc0lsy36q1r59yp7q-ad-4.5.6/libexec/x86_64-osx-ghc-9.6.5/ad-4.5.6
Data files installed in:
/nix/store/7pbzrd2r6ivdfjfnc0lsy36q1r59yp7q-ad-4.5.6/share/x86_64-osx-ghc-9.6.5/ad-4.5.6
Documentation installed in:
/nix/store/l7bxaac6am339ylrkf3wl7rhsgns91mi-ad-4.5.6-doc/share/doc/ad-4.5.6
Configuration files installed in:
/nix/store/7pbzrd2r6ivdfjfnc0lsy36q1r59yp7q-ad-4.5.6/etc
No alex found
Using ar found on system at:
/nix/store/qlr78286k6ly3vw8yzxfh4ycagw7krd2-cctools-binutils-darwin-16.0.6-973.0.1/bin/ar
No c2hs found
No cpphs found
No doctest found
Using gcc version 16.0.6 given by user at:
/nix/store/zmfpybag2nwgyw932ahg36z8im955flp-clang-wrapper-16.0.6/bin/clang
Using ghc version 9.6.5 found on system at:
/nix/store/jw4wdi097y48kpwsyg9v4xrff0dzvd96-ghc-9.6.5/bin/ghc
Using ghc-pkg version 9.6.5 found on system at:
/nix/store/jw4wdi097y48kpwsyg9v4xrff0dzvd96-ghc-9.6.5/bin/ghc-pkg-9.6.5
No ghcjs found
No ghcjs-pkg found
No greencard found
Using haddock version 2.29.2 found on system at:
/nix/store/jw4wdi097y48kpwsyg9v4xrff0dzvd96-ghc-9.6.5/bin/haddock-ghc-9.6.5
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 0.68 found on system at:
/nix/store/jw4wdi097y48kpwsyg9v4xrff0dzvd96-ghc-9.6.5/bin/hpc-ghc-9.6.5
Using hsc2hs version 0.68.9 found on system at:
/nix/store/jw4wdi097y48kpwsyg9v4xrff0dzvd96-ghc-9.6.5/bin/hsc2hs-ghc-9.6.5
Using hscolour version 1.25 found on system at:
/nix/store/9r8hfcgv474kbih9np6bzv32z8rhgc30-hscolour-1.25/bin/HsColour
No jhc found
Using ld found on system at:
/nix/store/hkliwgc5wirjdynkpx4ysgnb0gdhb3zf-cctools-binutils-darwin-wrapper-16.0.6-973.0.1/bin/ld
No pkg-config found
Using runghc version 9.6.5 found on system at:
/nix/store/jw4wdi097y48kpwsyg9v4xrff0dzvd96-ghc-9.6.5/bin/runghc-9.6.5
Using strip found on system at:
/nix/store/qlr78286k6ly3vw8yzxfh4ycagw7krd2-cctools-binutils-darwin-16.0.6-973.0.1/bin/strip
Using tar found on system at:
/nix/store/a0dqk2q664ii86yiyjlid4bmn7iw1yyp-gnutar-1.35/bin/tar
No uhc found
Running phase: buildPhase
Preprocessing library for ad-4.5.6..
Building library for ad-4.5.6..
[ 1 of 55] Compiling Numeric.AD.Internal.Doctest ( src/Numeric/AD/Internal/Doctest.hs, dist/build/Numeric/AD/Internal/Doctest.o, dist/build/Numeric/AD/Internal/Doctest.dyn_o )
[ 2 of 55] Compiling Numeric.AD.Internal.Sparse.Common ( src/Numeric/AD/Internal/Sparse/Common.hs, dist/build/Numeric/AD/Internal/Sparse/Common.o, dist/build/Numeric/AD/Internal/Sparse/Common.dyn_o )
[ 3 of 55] Compiling Numeric.AD.Jet   ( src/Numeric/AD/Jet.hs, dist/build/Numeric/AD/Jet.o, dist/build/Numeric/AD/Jet.dyn_o )
[ 4 of 55] Compiling Numeric.AD.Mode  ( src/Numeric/AD/Mode.hs, dist/build/Numeric/AD/Mode.o, dist/build/Numeric/AD/Mode.dyn_o )
[ 5 of 55] Compiling Numeric.AD.Jacobian ( src/Numeric/AD/Jacobian.hs, dist/build/Numeric/AD/Jacobian.o, dist/build/Numeric/AD/Jacobian.dyn_o )
[ 6 of 55] Compiling Numeric.AD.Internal.Type ( src/Numeric/AD/Internal/Type.hs, dist/build/Numeric/AD/Internal/Type.o, dist/build/Numeric/AD/Internal/Type.dyn_o )
[ 7 of 55] Compiling Numeric.AD.Internal.Or ( src/Numeric/AD/Internal/Or.hs, dist/build/Numeric/AD/Internal/Or.o, dist/build/Numeric/AD/Internal/Or.dyn_o )
[ 8 of 55] Compiling Numeric.AD.Internal.On ( src/Numeric/AD/Internal/On.hs, dist/build/Numeric/AD/Internal/On.o, dist/build/Numeric/AD/Internal/On.dyn_o )
[ 9 of 55] Compiling Numeric.AD.Internal.Identity ( src/Numeric/AD/Internal/Identity.hs, dist/build/Numeric/AD/Internal/Identity.o, dist/build/Numeric/AD/Internal/Identity.dyn_o )
[10 of 55] Compiling Numeric.AD.Internal.Combinators ( src/Numeric/AD/Internal/Combinators.hs, dist/build/Numeric/AD/Internal/Combinators.o, dist/build/Numeric/AD/Internal/Combinators.dyn_o )
[11 of 55] Compiling Numeric.AD.Internal.Tower.Double ( src/Numeric/AD/Internal/Tower/Double.hs, dist/build/Numeric/AD/Internal/Tower/Double.o, dist/build/Numeric/AD/Internal/Tower/Double.dyn_o )
[12 of 55] Compiling Numeric.AD.Internal.Tower ( src/Numeric/AD/Internal/Tower.hs, dist/build/Numeric/AD/Internal/Tower.o, dist/build/Numeric/AD/Internal/Tower.dyn_o )
[13 of 55] Compiling Numeric.AD.Internal.Sparse.Double ( src/Numeric/AD/Internal/Sparse/Double.hs, dist/build/Numeric/AD/Internal/Sparse/Double.o, dist/build/Numeric/AD/Internal/Sparse/Double.dyn_o )
[14 of 55] Compiling Numeric.AD.Internal.Sparse ( src/Numeric/AD/Internal/Sparse.hs, dist/build/Numeric/AD/Internal/Sparse.o, dist/build/Numeric/AD/Internal/Sparse.dyn_o )
[15 of 55] Compiling Numeric.AD.Internal.Reverse.Double ( src/Numeric/AD/Internal/Reverse/Double.hs, dist/build/Numeric/AD/Internal/Reverse/Double.o, dist/build/Numeric/AD/Internal/Reverse/Double.dyn_o )
[16 of 55] Compiling Numeric.AD.Internal.Reverse ( src/Numeric/AD/Internal/Reverse.hs, dist/build/Numeric/AD/Internal/Reverse.o, dist/build/Numeric/AD/Internal/Reverse.dyn_o )
[17 of 55] Compiling Numeric.AD.Internal.Kahn.Float ( src/Numeric/AD/Internal/Kahn/Float.hs, dist/build/Numeric/AD/Internal/Kahn/Float.o, dist/build/Numeric/AD/Internal/Kahn/Float.dyn_o )
[18 of 55] Compiling Numeric.AD.Internal.Kahn.Double ( src/Numeric/AD/Internal/Kahn/Double.hs, dist/build/Numeric/AD/Internal/Kahn/Double.o, dist/build/Numeric/AD/Internal/Kahn/Double.dyn_o )
[19 of 55] Compiling Numeric.AD.Internal.Kahn ( src/Numeric/AD/Internal/Kahn.hs, dist/build/Numeric/AD/Internal/Kahn.o, dist/build/Numeric/AD/Internal/Kahn.dyn_o )
[20 of 55] Compiling Numeric.AD.Internal.Forward.Double ( src/Numeric/AD/Internal/Forward/Double.hs, dist/build/Numeric/AD/Internal/Forward/Double.o, dist/build/Numeric/AD/Internal/Forward/Double.dyn_o )
[21 of 55] Compiling Numeric.AD.Internal.Forward ( src/Numeric/AD/Internal/Forward.hs, dist/build/Numeric/AD/Internal/Forward.o, dist/build/Numeric/AD/Internal/Forward.dyn_o )
[22 of 55] Compiling Numeric.AD.Internal.Dense.Representable ( src/Numeric/AD/Internal/Dense/Representable.hs, dist/build/Numeric/AD/Internal/Dense/Representable.o, dist/build/Numeric/AD/Internal/Dense/Representable.dyn_o )
[23 of 55] Compiling Numeric.AD.Internal.Dense ( src/Numeric/AD/Internal/Dense.hs, dist/build/Numeric/AD/Internal/Dense.o, dist/build/Numeric/AD/Internal/Dense.dyn_o )
[24 of 55] Compiling Numeric.AD.Mode.Reverse ( src/Numeric/AD/Mode/Reverse.hs, dist/build/Numeric/AD/Mode/Reverse.o, dist/build/Numeric/AD/Mode/Reverse.dyn_o )
[25 of 55] Compiling Numeric.AD.Mode.Reverse.Double ( src/Numeric/AD/Mode/Reverse/Double.hs, dist/build/Numeric/AD/Mode/Reverse/Double.o, dist/build/Numeric/AD/Mode/Reverse/Double.dyn_o )
[26 of 55] Compiling Numeric.AD.Rank1.Dense ( src/Numeric/AD/Rank1/Dense.hs, dist/build/Numeric/AD/Rank1/Dense.o, dist/build/Numeric/AD/Rank1/Dense.dyn_o )
[27 of 55] Compiling Numeric.AD.Mode.Dense ( src/Numeric/AD/Mode/Dense.hs, dist/build/Numeric/AD/Mode/Dense.o, dist/build/Numeric/AD/Mode/Dense.dyn_o )
[28 of 55] Compiling Numeric.AD.Rank1.Dense.Representable ( src/Numeric/AD/Rank1/Dense/Representable.hs, dist/build/Numeric/AD/Rank1/Dense/Representable.o, dist/build/Numeric/AD/Rank1/Dense/Representable.dyn_o )
[29 of 55] Compiling Numeric.AD.Mode.Dense.Representable ( src/Numeric/AD/Mode/Dense/Representable.hs, dist/build/Numeric/AD/Mode/Dense/Representable.o, dist/build/Numeric/AD/Mode/Dense/Representable.dyn_o )
[30 of 55] Compiling Numeric.AD.Rank1.Forward ( src/Numeric/AD/Rank1/Forward.hs, dist/build/Numeric/AD/Rank1/Forward.o, dist/build/Numeric/AD/Rank1/Forward.dyn_o )
[31 of 55] Compiling Numeric.AD.Mode.Forward ( src/Numeric/AD/Mode/Forward.hs, dist/build/Numeric/AD/Mode/Forward.o, dist/build/Numeric/AD/Mode/Forward.dyn_o )
[32 of 55] Compiling Numeric.AD.Rank1.Forward.Double ( src/Numeric/AD/Rank1/Forward/Double.hs, dist/build/Numeric/AD/Rank1/Forward/Double.o, dist/build/Numeric/AD/Rank1/Forward/Double.dyn_o )
[33 of 55] Compiling Numeric.AD.Mode.Forward.Double ( src/Numeric/AD/Mode/Forward/Double.hs, dist/build/Numeric/AD/Mode/Forward/Double.o, dist/build/Numeric/AD/Mode/Forward/Double.dyn_o )
[34 of 55] Compiling Numeric.AD.Rank1.Kahn ( src/Numeric/AD/Rank1/Kahn.hs, dist/build/Numeric/AD/Rank1/Kahn.o, dist/build/Numeric/AD/Rank1/Kahn.dyn_o )
[35 of 55] Compiling Numeric.AD.Mode.Kahn ( src/Numeric/AD/Mode/Kahn.hs, dist/build/Numeric/AD/Mode/Kahn.o, dist/build/Numeric/AD/Mode/Kahn.dyn_o )
[36 of 55] Compiling Numeric.AD.Rank1.Kahn.Double ( src/Numeric/AD/Rank1/Kahn/Double.hs, dist/build/Numeric/AD/Rank1/Kahn/Double.o, dist/build/Numeric/AD/Rank1/Kahn/Double.dyn_o )
[37 of 55] Compiling Numeric.AD.Mode.Kahn.Double ( src/Numeric/AD/Mode/Kahn/Double.hs, dist/build/Numeric/AD/Mode/Kahn/Double.o, dist/build/Numeric/AD/Mode/Kahn/Double.dyn_o )
[38 of 55] Compiling Numeric.AD.Rank1.Kahn.Float ( src/Numeric/AD/Rank1/Kahn/Float.hs, dist/build/Numeric/AD/Rank1/Kahn/Float.o, dist/build/Numeric/AD/Rank1/Kahn/Float.dyn_o )
[39 of 55] Compiling Numeric.AD.Rank1.Newton ( src/Numeric/AD/Rank1/Newton.hs, dist/build/Numeric/AD/Rank1/Newton.o, dist/build/Numeric/AD/Rank1/Newton.dyn_o )
[40 of 55] Compiling Numeric.AD.Newton ( src/Numeric/AD/Newton.hs, dist/build/Numeric/AD/Newton.o, dist/build/Numeric/AD/Newton.dyn_o )
[41 of 55] Compiling Numeric.AD.Rank1.Newton.Double ( src/Numeric/AD/Rank1/Newton/Double.hs, dist/build/Numeric/AD/Rank1/Newton/Double.o, dist/build/Numeric/AD/Rank1/Newton/Double.dyn_o )
[42 of 55] Compiling Numeric.AD.Newton.Double ( src/Numeric/AD/Newton/Double.hs, dist/build/Numeric/AD/Newton/Double.o, dist/build/Numeric/AD/Newton/Double.dyn_o )
[43 of 55] Compiling Numeric.AD.Rank1.Sparse ( src/Numeric/AD/Rank1/Sparse.hs, dist/build/Numeric/AD/Rank1/Sparse.o, dist/build/Numeric/AD/Rank1/Sparse.dyn_o )
[44 of 55] Compiling Numeric.AD.Mode.Sparse ( src/Numeric/AD/Mode/Sparse.hs, dist/build/Numeric/AD/Mode/Sparse.o, dist/build/Numeric/AD/Mode/Sparse.dyn_o )
[45 of 55] Compiling Numeric.AD.Rank1.Sparse.Double ( src/Numeric/AD/Rank1/Sparse/Double.hs, dist/build/Numeric/AD/Rank1/Sparse/Double.o, dist/build/Numeric/AD/Rank1/Sparse/Double.dyn_o )
[46 of 55] Compiling Numeric.AD.Mode.Sparse.Double ( src/Numeric/AD/Mode/Sparse/Double.hs, dist/build/Numeric/AD/Mode/Sparse/Double.o, dist/build/Numeric/AD/Mode/Sparse/Double.dyn_o )
[47 of 55] Compiling Numeric.AD.Rank1.Tower ( src/Numeric/AD/Rank1/Tower.hs, dist/build/Numeric/AD/Rank1/Tower.o, dist/build/Numeric/AD/Rank1/Tower.dyn_o )
[48 of 55] Compiling Numeric.AD.Rank1.Halley ( src/Numeric/AD/Rank1/Halley.hs, dist/build/Numeric/AD/Rank1/Halley.o, dist/build/Numeric/AD/Rank1/Halley.dyn_o )
[49 of 55] Compiling Numeric.AD.Mode.Tower ( src/Numeric/AD/Mode/Tower.hs, dist/build/Numeric/AD/Mode/Tower.o, dist/build/Numeric/AD/Mode/Tower.dyn_o )
[50 of 55] Compiling Numeric.AD       ( src/Numeric/AD.hs, dist/build/Numeric/AD.o, dist/build/Numeric/AD.dyn_o )
[51 of 55] Compiling Numeric.AD.Rank1.Tower.Double ( src/Numeric/AD/Rank1/Tower/Double.hs, dist/build/Numeric/AD/Rank1/Tower/Double.o, dist/build/Numeric/AD/Rank1/Tower/Double.dyn_o )
[52 of 55] Compiling Numeric.AD.Rank1.Halley.Double ( src/Numeric/AD/Rank1/Halley/Double.hs, dist/build/Numeric/AD/Rank1/Halley/Double.o, dist/build/Numeric/AD/Rank1/Halley/Double.dyn_o )
[53 of 55] Compiling Numeric.AD.Halley.Double ( src/Numeric/AD/Halley/Double.hs, dist/build/Numeric/AD/Halley/Double.o, dist/build/Numeric/AD/Halley/Double.dyn_o )
[54 of 55] Compiling Numeric.AD.Mode.Tower.Double ( src/Numeric/AD/Mode/Tower/Double.hs, dist/build/Numeric/AD/Mode/Tower/Double.o, dist/build/Numeric/AD/Mode/Tower/Double.dyn_o )
[55 of 55] Compiling Numeric.AD.Double ( src/Numeric/AD/Double.hs, dist/build/Numeric/AD/Double.o, dist/build/Numeric/AD/Double.dyn_o )
[ 1 of 55] Compiling Numeric.AD.Internal.Doctest ( src/Numeric/AD/Internal/Doctest.hs, dist/build/Numeric/AD/Internal/Doctest.p_o )
[ 2 of 55] Compiling Numeric.AD.Internal.Sparse.Common ( src/Numeric/AD/Internal/Sparse/Common.hs, dist/build/Numeric/AD/Internal/Sparse/Common.p_o )
[ 3 of 55] Compiling Numeric.AD.Jet   ( src/Numeric/AD/Jet.hs, dist/build/Numeric/AD/Jet.p_o )
[ 4 of 55] Compiling Numeric.AD.Mode  ( src/Numeric/AD/Mode.hs, dist/build/Numeric/AD/Mode.p_o )
[ 5 of 55] Compiling Numeric.AD.Jacobian ( src/Numeric/AD/Jacobian.hs, dist/build/Numeric/AD/Jacobian.p_o )
[ 6 of 55] Compiling Numeric.AD.Internal.Type ( src/Numeric/AD/Internal/Type.hs, dist/build/Numeric/AD/Internal/Type.p_o )
[ 7 of 55] Compiling Numeric.AD.Internal.Or ( src/Numeric/AD/Internal/Or.hs, dist/build/Numeric/AD/Internal/Or.p_o )
[ 8 of 55] Compiling Numeric.AD.Internal.On ( src/Numeric/AD/Internal/On.hs, dist/build/Numeric/AD/Internal/On.p_o )
[ 9 of 55] Compiling Numeric.AD.Internal.Identity ( src/Numeric/AD/Internal/Identity.hs, dist/build/Numeric/AD/Internal/Identity.p_o )
[10 of 55] Compiling Numeric.AD.Internal.Combinators ( src/Numeric/AD/Internal/Combinators.hs, dist/build/Numeric/AD/Internal/Combinators.p_o )
[11 of 55] Compiling Numeric.AD.Internal.Tower.Double ( src/Numeric/AD/Internal/Tower/Double.hs, dist/build/Numeric/AD/Internal/Tower/Double.p_o )
[12 of 55] Compiling Numeric.AD.Internal.Tower ( src/Numeric/AD/Internal/Tower.hs, dist/build/Numeric/AD/Internal/Tower.p_o )
[13 of 55] Compiling Numeric.AD.Internal.Sparse.Double ( src/Numeric/AD/Internal/Sparse/Double.hs, dist/build/Numeric/AD/Internal/Sparse/Double.p_o )
[14 of 55] Compiling Numeric.AD.Internal.Sparse ( src/Numeric/AD/Internal/Sparse.hs, dist/build/Numeric/AD/Internal/Sparse.p_o )
[15 of 55] Compiling Numeric.AD.Internal.Reverse.Double ( src/Numeric/AD/Internal/Reverse/Double.hs, dist/build/Numeric/AD/Internal/Reverse/Double.p_o )
[16 of 55] Compiling Numeric.AD.Internal.Reverse ( src/Numeric/AD/Internal/Reverse.hs, dist/build/Numeric/AD/Internal/Reverse.p_o )
[17 of 55] Compiling Numeric.AD.Internal.Kahn.Float ( src/Numeric/AD/Internal/Kahn/Float.hs, dist/build/Numeric/AD/Internal/Kahn/Float.p_o )
[18 of 55] Compiling Numeric.AD.Internal.Kahn.Double ( src/Numeric/AD/Internal/Kahn/Double.hs, dist/build/Numeric/AD/Internal/Kahn/Double.p_o )
[19 of 55] Compiling Numeric.AD.Internal.Kahn ( src/Numeric/AD/Internal/Kahn.hs, dist/build/Numeric/AD/Internal/Kahn.p_o )
[20 of 55] Compiling Numeric.AD.Internal.Forward.Double ( src/Numeric/AD/Internal/Forward/Double.hs, dist/build/Numeric/AD/Internal/Forward/Double.p_o )
[21 of 55] Compiling Numeric.AD.Internal.Forward ( src/Numeric/AD/Internal/Forward.hs, dist/build/Numeric/AD/Internal/Forward.p_o )
[22 of 55] Compiling Numeric.AD.Internal.Dense.Representable ( src/Numeric/AD/Internal/Dense/Representable.hs, dist/build/Numeric/AD/Internal/Dense/Representable.p_o )
[23 of 55] Compiling Numeric.AD.Internal.Dense ( src/Numeric/AD/Internal/Dense.hs, dist/build/Numeric/AD/Internal/Dense.p_o )
[24 of 55] Compiling Numeric.AD.Mode.Reverse ( src/Numeric/AD/Mode/Reverse.hs, dist/build/Numeric/AD/Mode/Reverse.p_o )
[25 of 55] Compiling Numeric.AD.Mode.Reverse.Double ( src/Numeric/AD/Mode/Reverse/Double.hs, dist/build/Numeric/AD/Mode/Reverse/Double.p_o )
[26 of 55] Compiling Numeric.AD.Rank1.Dense ( src/Numeric/AD/Rank1/Dense.hs, dist/build/Numeric/AD/Rank1/Dense.p_o )
[27 of 55] Compiling Numeric.AD.Mode.Dense ( src/Numeric/AD/Mode/Dense.hs, dist/build/Numeric/AD/Mode/Dense.p_o )
[28 of 55] Compiling Numeric.AD.Rank1.Dense.Representable ( src/Numeric/AD/Rank1/Dense/Representable.hs, dist/build/Numeric/AD/Rank1/Dense/Representable.p_o )
[29 of 55] Compiling Numeric.AD.Mode.Dense.Representable ( src/Numeric/AD/Mode/Dense/Representable.hs, dist/build/Numeric/AD/Mode/Dense/Representable.p_o )
[30 of 55] Compiling Numeric.AD.Rank1.Forward ( src/Numeric/AD/Rank1/Forward.hs, dist/build/Numeric/AD/Rank1/Forward.p_o )
[31 of 55] Compiling Numeric.AD.Mode.Forward ( src/Numeric/AD/Mode/Forward.hs, dist/build/Numeric/AD/Mode/Forward.p_o )
[32 of 55] Compiling Numeric.AD.Rank1.Forward.Double ( src/Numeric/AD/Rank1/Forward/Double.hs, dist/build/Numeric/AD/Rank1/Forward/Double.p_o )
[33 of 55] Compiling Numeric.AD.Mode.Forward.Double ( src/Numeric/AD/Mode/Forward/Double.hs, dist/build/Numeric/AD/Mode/Forward/Double.p_o )
[34 of 55] Compiling Numeric.AD.Rank1.Kahn ( src/Numeric/AD/Rank1/Kahn.hs, dist/build/Numeric/AD/Rank1/Kahn.p_o )
[35 of 55] Compiling Numeric.AD.Mode.Kahn ( src/Numeric/AD/Mode/Kahn.hs, dist/build/Numeric/AD/Mode/Kahn.p_o )
[36 of 55] Compiling Numeric.AD.Rank1.Kahn.Double ( src/Numeric/AD/Rank1/Kahn/Double.hs, dist/build/Numeric/AD/Rank1/Kahn/Double.p_o )
[37 of 55] Compiling Numeric.AD.Mode.Kahn.Double ( src/Numeric/AD/Mode/Kahn/Double.hs, dist/build/Numeric/AD/Mode/Kahn/Double.p_o )
[38 of 55] Compiling Numeric.AD.Rank1.Kahn.Float ( src/Numeric/AD/Rank1/Kahn/Float.hs, dist/build/Numeric/AD/Rank1/Kahn/Float.p_o )
[39 of 55] Compiling Numeric.AD.Rank1.Newton ( src/Numeric/AD/Rank1/Newton.hs, dist/build/Numeric/AD/Rank1/Newton.p_o )
[40 of 55] Compiling Numeric.AD.Newton ( src/Numeric/AD/Newton.hs, dist/build/Numeric/AD/Newton.p_o )
[41 of 55] Compiling Numeric.AD.Rank1.Newton.Double ( src/Numeric/AD/Rank1/Newton/Double.hs, dist/build/Numeric/AD/Rank1/Newton/Double.p_o )
[42 of 55] Compiling Numeric.AD.Newton.Double ( src/Numeric/AD/Newton/Double.hs, dist/build/Numeric/AD/Newton/Double.p_o )
[43 of 55] Compiling Numeric.AD.Rank1.Sparse ( src/Numeric/AD/Rank1/Sparse.hs, dist/build/Numeric/AD/Rank1/Sparse.p_o )
[44 of 55] Compiling Numeric.AD.Mode.Sparse ( src/Numeric/AD/Mode/Sparse.hs, dist/build/Numeric/AD/Mode/Sparse.p_o )
[45 of 55] Compiling Numeric.AD.Rank1.Sparse.Double ( src/Numeric/AD/Rank1/Sparse/Double.hs, dist/build/Numeric/AD/Rank1/Sparse/Double.p_o )
[46 of 55] Compiling Numeric.AD.Mode.Sparse.Double ( src/Numeric/AD/Mode/Sparse/Double.hs, dist/build/Numeric/AD/Mode/Sparse/Double.p_o )
[47 of 55] Compiling Numeric.AD.Rank1.Tower ( src/Numeric/AD/Rank1/Tower.hs, dist/build/Numeric/AD/Rank1/Tower.p_o )
[48 of 55] Compiling Numeric.AD.Rank1.Halley ( src/Numeric/AD/Rank1/Halley.hs, dist/build/Numeric/AD/Rank1/Halley.p_o )
[49 of 55] Compiling Numeric.AD.Mode.Tower ( src/Numeric/AD/Mode/Tower.hs, dist/build/Numeric/AD/Mode/Tower.p_o )
[50 of 55] Compiling Numeric.AD       ( src/Numeric/AD.hs, dist/build/Numeric/AD.p_o )
[51 of 55] Compiling Numeric.AD.Rank1.Tower.Double ( src/Numeric/AD/Rank1/Tower/Double.hs, dist/build/Numeric/AD/Rank1/Tower/Double.p_o )
[52 of 55] Compiling Numeric.AD.Rank1.Halley.Double ( src/Numeric/AD/Rank1/Halley/Double.hs, dist/build/Numeric/AD/Rank1/Halley/Double.p_o )
[53 of 55] Compiling Numeric.AD.Halley.Double ( src/Numeric/AD/Halley/Double.hs, dist/build/Numeric/AD/Halley/Double.p_o )
[54 of 55] Compiling Numeric.AD.Mode.Tower.Double ( src/Numeric/AD/Mode/Tower/Double.hs, dist/build/Numeric/AD/Mode/Tower/Double.p_o )
[55 of 55] Compiling Numeric.AD.Double ( src/Numeric/AD/Double.hs, dist/build/Numeric/AD/Double.p_o )
/nix/store/qlr78286k6ly3vw8yzxfh4ycagw7krd2-cctools-binutils-darwin-16.0.6-973.0.1/bin/ranlib: file: dist/build/libHSad-4.5.6-1WRJjsCnjTC4FZorB43KOi-ghc9.6.5.a(longlong.o) has no symbols
/nix/store/qlr78286k6ly3vw8yzxfh4ycagw7krd2-cctools-binutils-darwin-16.0.6-973.0.1/bin/ranlib: file: dist/build/libHSad-4.5.6-1WRJjsCnjTC4FZorB43KOi-ghc9.6.5.a(Disassembler.o) has no symbols
/nix/store/qlr78286k6ly3vw8yzxfh4ycagw7krd2-cctools-binutils-darwin-16.0.6-973.0.1/bin/ranlib: file: dist/build/libHSad-4.5.6-1WRJjsCnjTC4FZorB43KOi-ghc9.6.5.a(LdvProfile.o) has no symbols
/nix/store/qlr78286k6ly3vw8yzxfh4ycagw7krd2-cctools-binutils-darwin-16.0.6-973.0.1/bin/ranlib: file: dist/build/libHSad-4.5.6-1WRJjsCnjTC4FZorB43KOi-ghc9.6.5.a(OldARMAtomic.o) has no symbols
/nix/store/qlr78286k6ly3vw8yzxfh4ycagw7krd2-cctools-binutils-darwin-16.0.6-973.0.1/bin/ranlib: file: dist/build/libHSad-4.5.6-1WRJjsCnjTC4FZorB43KOi-ghc9.6.5.a(ProfilerReport.o) has no symbols
/nix/store/qlr78286k6ly3vw8yzxfh4ycagw7krd2-cctools-binutils-darwin-16.0.6-973.0.1/bin/ranlib: file: dist/build/libHSad-4.5.6-1WRJjsCnjTC4FZorB43KOi-ghc9.6.5.a(ProfilerReportJson.o) has no symbols
/nix/store/qlr78286k6ly3vw8yzxfh4ycagw7krd2-cctools-binutils-darwin-16.0.6-973.0.1/bin/ranlib: file: dist/build/libHSad-4.5.6-1WRJjsCnjTC4FZorB43KOi-ghc9.6.5.a(Profiling.o) has no symbols
/nix/store/qlr78286k6ly3vw8yzxfh4ycagw7krd2-cctools-binutils-darwin-16.0.6-973.0.1/bin/ranlib: file: dist/build/libHSad-4.5.6-1WRJjsCnjTC4FZorB43KOi-ghc9.6.5.a(RetainerProfile.o) has no symbols
/nix/store/qlr78286k6ly3vw8yzxfh4ycagw7krd2-cctools-binutils-darwin-16.0.6-973.0.1/bin/ranlib: file: dist/build/libHSad-4.5.6-1WRJjsCnjTC4FZorB43KOi-ghc9.6.5.a(RetainerSet.o) has no symbols
/nix/store/qlr78286k6ly3vw8yzxfh4ycagw7krd2-cctools-binutils-darwin-16.0.6-973.0.1/bin/ranlib: file: dist/build/libHSad-4.5.6-1WRJjsCnjTC4FZorB43KOi-ghc9.6.5.a(RtsDllMain.o) has no symbols
/nix/store/qlr78286k6ly3vw8yzxfh4ycagw7krd2-cctools-binutils-darwin-16.0.6-973.0.1/bin/ranlib: file: dist/build/libHSad-4.5.6-1WRJjsCnjTC4FZorB43KOi-ghc9.6.5.a(SpinLock.o) has no symbols
/nix/store/qlr78286k6ly3vw8yzxfh4ycagw7krd2-cctools-binutils-darwin-16.0.6-973.0.1/bin/ranlib: file: dist/build/libHSad-4.5.6-1WRJjsCnjTC4FZorB43KOi-ghc9.6.5.a(TraverseHeap.o) has no symbols
/nix/store/qlr78286k6ly3vw8yzxfh4ycagw7krd2-cctools-binutils-darwin-16.0.6-973.0.1/bin/ranlib: file: dist/build/libHSad-4.5.6-1WRJjsCnjTC4FZorB43KOi-ghc9.6.5.a(TraverseHeapTest.o) has no symbols
/nix/store/qlr78286k6ly3vw8yzxfh4ycagw7krd2-cctools-binutils-darwin-16.0.6-973.0.1/bin/ranlib: file: dist/build/libHSad-4.5.6-1WRJjsCnjTC4FZorB43KOi-ghc9.6.5.a(TSANUtils.o) has no symbols
/nix/store/qlr78286k6ly3vw8yzxfh4ycagw7krd2-cctools-binutils-darwin-16.0.6-973.0.1/bin/ranlib: file: dist/build/libHSad-4.5.6-1WRJjsCnjTC4FZorB43KOi-ghc9.6.5.a(Elf.o) has no symbols
/nix/store/qlr78286k6ly3vw8yzxfh4ycagw7krd2-cctools-binutils-darwin-16.0.6-973.0.1/bin/ranlib: file: dist/build/libHSad-4.5.6-1WRJjsCnjTC4FZorB43KOi-ghc9.6.5.a(plt.o) has no symbols
/nix/store/qlr78286k6ly3vw8yzxfh4ycagw7krd2-cctools-binutils-darwin-16.0.6-973.0.1/bin/ranlib: file: dist/build/libHSad-4.5.6-1WRJjsCnjTC4FZorB43KOi-ghc9.6.5.a(plt_aarch64.o) has no symbols
/nix/store/qlr78286k6ly3vw8yzxfh4ycagw7krd2-cctools-binutils-darwin-16.0.6-973.0.1/bin/ranlib: file: dist/build/libHSad-4.5.6-1WRJjsCnjTC4FZorB43KOi-ghc9.6.5.a(PEi386.o) has no symbols
/nix/store/qlr78286k6ly3vw8yzxfh4ycagw7krd2-cctools-binutils-darwin-16.0.6-973.0.1/bin/ranlib: file: dist/build/libHSad-4.5.6-1WRJjsCnjTC4FZorB43KOi-ghc9.6.5.a(elf_got.o) has no symbols
/nix/store/qlr78286k6ly3vw8yzxfh4ycagw7krd2-cctools-binutils-darwin-16.0.6-973.0.1/bin/ranlib: file: dist/build/libHSad-4.5.6-1WRJjsCnjTC4FZorB43KOi-ghc9.6.5.a(elf_plt.o) has no symbols
/nix/store/qlr78286k6ly3vw8yzxfh4ycagw7krd2-cctools-binutils-darwin-16.0.6-973.0.1/bin/ranlib: file: dist/build/libHSad-4.5.6-1WRJjsCnjTC4FZorB43KOi-ghc9.6.5.a(elf_plt_aarch64.o) has no symbols
/nix/store/qlr78286k6ly3vw8yzxfh4ycagw7krd2-cctools-binutils-darwin-16.0.6-973.0.1/bin/ranlib: file: dist/build/libHSad-4.5.6-1WRJjsCnjTC4FZorB43KOi-ghc9.6.5.a(elf_plt_arm.o) has no symbols
/nix/store/qlr78286k6ly3vw8yzxfh4ycagw7krd2-cctools-binutils-darwin-16.0.6-973.0.1/bin/ranlib: file: dist/build/libHSad-4.5.6-1WRJjsCnjTC4FZorB43KOi-ghc9.6.5.a(elf_reloc.o) has no symbols
/nix/store/qlr78286k6ly3vw8yzxfh4ycagw7krd2-cctools-binutils-darwin-16.0.6-973.0.1/bin/ranlib: file: dist/build/libHSad-4.5.6-1WRJjsCnjTC4FZorB43KOi-ghc9.6.5.a(elf_reloc_aarch64.o) has no symbols
/nix/store/qlr78286k6ly3vw8yzxfh4ycagw7krd2-cctools-binutils-darwin-16.0.6-973.0.1/bin/ranlib: file: dist/build/libHSad-4.5.6-1WRJjsCnjTC4FZorB43KOi-ghc9.6.5.a(elf_tlsgd.o) has no symbols
/nix/store/qlr78286k6ly3vw8yzxfh4ycagw7krd2-cctools-binutils-darwin-16.0.6-973.0.1/bin/ranlib: file: dist/build/libHSad-4.5.6-1WRJjsCnjTC4FZorB43KOi-ghc9.6.5.a(elf_util.o) has no symbols
/nix/store/qlr78286k6ly3vw8yzxfh4ycagw7krd2-cctools-binutils-darwin-16.0.6-973.0.1/bin/ranlib: file: dist/build/libHSad-4.5.6-1WRJjsCnjTC4FZorB43KOi-ghc9.6.5.a(Sanity.o) has no symbols
Preprocessing test suite 'regression' for ad-4.5.6..
Building test suite 'regression' for ad-4.5.6..
[1 of 1] Compiling Main             ( tests/Regression.hs, dist/build/regression/regression-tmp/Main.o )
[2 of 2] Linking dist/build/regression/regression
buildPhase completed in 1 minutes 48 seconds
Running phase: checkPhase
Running 1 test suites...
Test suite regression: RUNNING...
tests
  forward
    basic
      diff:     OK
      grad:     OK
      jacobian: OK
      hessian:  OK
    issue-97:   OK
    issue-104
      inside
        diff:   OK
        grad:   OK
      outside
        diff:   OK
        grad:   OK
    issue-108
      log1p:    OK
      expm1:    FAIL
        tests/Regression.hs:140:
        expected (1.718281828459045,2.718281828459045) but got (1.7182818284590453,2.718281828459045)
        Use -p '/forward.issue-108.expm1/' to rerun this test only.
      log1pexp: OK
      log1mexp: FAIL
        tests/Regression.hs:140:
        expected (-0.45867514538708193,-0.5819767068693265) but got (-0.45867514538708193,-0.5819767068693263)
        Use -p '/forward.issue-108.log1mexp/' to rerun this test only.
  reverse
    basic
      diff:     OK
      grad:     OK
      jacobian: OK
      hessian:  OK
    issue-97:   OK
    issue-104
      inside
        diff:   OK
        grad:   OK
      outside
        diff:   OK
        grad:   OK
    issue-108
      log1p:    OK
      expm1:    FAIL
        tests/Regression.hs:140:
        expected (1.718281828459045,2.718281828459045) but got (1.7182818284590453,2.718281828459045)
        Use -p '/reverse.issue-108.expm1/' to rerun this test only.
      log1pexp: OK
      log1mexp: FAIL
        tests/Regression.hs:140:
        expected (-0.45867514538708193,-0.5819767068693265) but got (-0.45867514538708193,-0.5819767068693263)
        Use -p '/reverse.issue-108.log1mexp/' to rerun this test only.
  reverse-double
    basic
      diff:     OK
      grad:     OK
      jacobian: OK
      hessian:  OK
    issue-97:   OK
    issue-104
      inside
        diff:   OK
        grad:   OK
      outside
        diff:   OK
        grad:   OK
    issue-108
      log1p:    OK
      expm1:    FAIL
        tests/Regression.hs:140:
        expected (1.718281828459045,2.718281828459045) but got (1.7182818284590453,2.718281828459045)
        Use -p '/reverse-double.issue-108.expm1/' to rerun this test only.
      log1pexp: OK
      log1mexp: FAIL
        tests/Regression.hs:140:
        expected (-0.45867514538708193,-0.5819767068693265) but got (-0.45867514538708193,-0.5819767068693263)
        Use -p '/reverse-double.issue-108.log1mexp/' to rerun this test only.

6 out of 39 tests failed (0.00s)
Test suite regression: FAIL
Test suite logged to: dist/test/ad-4.5.6-regression.log
0 of 1 test suites (0 of 1 test cases) passed.

Any ideas?

@julmb proposes to fix the error by redefining eq in the regression test suite to use relative error rather than exact Double equality (see #111 (comment)).