The build is unreachable.

Build log

> /tmp/stackage-build2453$ stack unpack dsp-0.2.4.1@sha256:2944800e4b4d646da319566082745310508c661bac464ba82febc836c70cf5e1
Unpacked dsp-0.2.4.1 to /tmp/stackage-build2453/dsp-0.2.4.1/
> /tmp/stackage-build2453/dsp-0.2.4.1$ 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-build2453/dsp-0.2.4.1$ ./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/dsp-0.2.4.1 --htmldir=/home/circleci/project/builds/nightly/doc/dsp-0.2.4.1 --haddockdir=/home/circleci/project/builds/nightly/doc/dsp-0.2.4.1
Configuring dsp-0.2.4.1...
> /tmp/stackage-build2453/dsp-0.2.4.1$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2453/dsp-0.2.4.1$ ./Setup build
Preprocessing library for dsp-0.2.4.1..
Building library for dsp-0.2.4.1..
[ 1 of 84] Compiling DSP.Convolution  ( DSP/Convolution.hs, dist/build/DSP/Convolution.o )

DSP/Convolution.hs:27:1: warning: [-Wtabs]
    Tab character found here, and in one further location.
    Please use spaces instead.
   |
27 |           m3 = m1 + m2
   | ^^^^^^^^
[ 2 of 84] Compiling DSP.Correlation  ( DSP/Correlation.hs, dist/build/DSP/Correlation.o )
[ 3 of 84] Compiling DSP.Estimation.Frequency.PerMax ( DSP/Estimation/Frequency/PerMax.hs, dist/build/DSP/Estimation/Frequency/PerMax.o )
[ 4 of 84] Compiling DSP.Estimation.Frequency.QuinnFernandes ( DSP/Estimation/Frequency/QuinnFernandes.hs, dist/build/DSP/Estimation/Frequency/QuinnFernandes.o )

DSP/Estimation/Frequency/QuinnFernandes.hs:33:1: warning: [-Wtabs]
    Tab character found here, and in three further locations.
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   |
33 |         | otherwise       = qf' y b
   | ^^^^^^^^
[ 5 of 84] Compiling DSP.Estimation.Spectral.ARMA ( DSP/Estimation/Spectral/ARMA.hs, dist/build/DSP/Estimation/Spectral/ARMA.o )

DSP/Estimation/Spectral/ARMA.hs:41:2: warning: [-Wtabs]
    Tab character found here, and in 13 further locations.
    Please use spaces instead.
   |
41 |           a' = array (1,p) [ (k, a!(p,k)) | k <- [1..p] ]
   |  ^^^^^^^
[ 6 of 84] Compiling DSP.Estimation.Spectral.KayData ( DSP/Estimation/Spectral/KayData.hs, dist/build/DSP/Estimation/Spectral/KayData.o )
[ 7 of 84] Compiling DSP.Filter.FIR.FIR ( DSP/Filter/FIR/FIR.hs, dist/build/DSP/Filter/FIR/FIR.o )

DSP/Filter/FIR/FIR.hs:42:1: warning: [-Wtabs]
    Tab character found here, and in 25 further locations.
    Please use spaces instead.
   |
42 |           m = snd $ bounds h
   | ^^^^^^^^
[ 8 of 84] Compiling DSP.Filter.FIR.Taps ( DSP/Filter/FIR/Taps.hs, dist/build/DSP/Filter/FIR/Taps.o )
[ 9 of 84] Compiling DSP.Filter.IIR.IIR ( DSP/Filter/IIR/IIR.hs, dist/build/DSP/Filter/IIR/IIR.o )

DSP/Filter/IIR/IIR.hs:69:1: warning: [-Wtabs]
    Tab character found here, and in 51 further locations.
    Please use spaces instead.
   |
69 |            -> [a] -- ^ x[n]
   | ^^^^^^^^
[10 of 84] Compiling DSP.Flowgraph    ( DSP/Flowgraph.hs, dist/build/DSP/Flowgraph.o )

DSP/Flowgraph.hs:26:1: warning: [-Wtabs]
    Tab character found here, and in one further location.
    Please use spaces instead.
   |
26 |         -> [a] -- ^ x[n]
   | ^^^^^^^^
[11 of 84] Compiling DSP.Multirate.Polyphase ( DSP/Multirate/Polyphase.hs, dist/build/DSP/Multirate/Polyphase.o )

DSP/Multirate/Polyphase.hs:33:1: warning: [-Wtabs]
    Tab character found here, and in three further locations.
    Please use spaces instead.
   |
33 |             -> Array Int a -- ^ h[n]
   | ^^^^^^^^
[12 of 84] Compiling DSP.Source.Basic ( DSP/Source/Basic.hs, dist/build/DSP/Source/Basic.o )
[13 of 84] Compiling DSP.Basic        ( DSP/Basic.hs, dist/build/DSP/Basic.o )

DSP/Basic.hs:82:1: warning: [-Wtabs]
    Tab character found here.
    Please use spaces instead.
   |
82 |           zero i ys = 0 : zero (i-1) ys
   | ^^^^^^^^
[14 of 84] Compiling DSP.Multirate.Halfband ( DSP/Multirate/Halfband.hs, dist/build/DSP/Multirate/Halfband.o )

DSP/Multirate/Halfband.hs:31:1: warning: [-Wtabs]
    Tab character found here, and in 9 further locations.
    Please use spaces instead.
   |
31 |           -> [a] -- ^ x[n]
   | ^^^^^^^^
[15 of 84] Compiling DSP.Multirate.CIC ( DSP/Multirate/CIC.hs, dist/build/DSP/Multirate/CIC.o )

DSP/Multirate/CIC.hs:92:1: warning: [-Wtabs]
    Tab character found here, and in 11 further locations.
    Please use spaces instead.
   |
92 |                 -> Int -- ^ M
   | ^^^^^^^^
[16 of 84] Compiling DSP.Filter.IIR.Cookbook ( DSP/Filter/IIR/Cookbook.lhs, dist/build/DSP/Filter/IIR/Cookbook.o )
[17 of 84] Compiling DSP.Filter.FIR.Sharpen ( DSP/Filter/FIR/Sharpen.hs, dist/build/DSP/Filter/FIR/Sharpen.o )

DSP/Filter/FIR/Sharpen.hs:40:1: warning: [-Wtabs]
    Tab character found here, and in six further locations.
    Please use spaces instead.
   |
40 |         -> ([a] -> [a]) -- ^ function that implements the sharpened filter
   | ^^^^^^^^
[18 of 84] Compiling DSP.Estimation.Frequency.WLP ( DSP/Estimation/Frequency/WLP.hs, dist/build/DSP/Estimation/Frequency/WLP.o )
[19 of 84] Compiling DSP.Estimation.Frequency.Pisarenko ( DSP/Estimation/Frequency/Pisarenko.hs, dist/build/DSP/Estimation/Frequency/Pisarenko.o )

DSP/Estimation/Frequency/Pisarenko.hs:27:1: warning: [-Wtabs]
    Tab character found here, and in five further locations.
    Please use spaces instead.
   |
27 |           -> a
   | ^^^^^^^^
[20 of 84] Compiling DSP.Estimation.Frequency.FCI ( DSP/Estimation/Frequency/FCI.hs, dist/build/DSP/Estimation/Frequency/FCI.o )

DSP/Estimation/Frequency/FCI.hs:35:1: warning: [-Wtabs]
    Tab character found here, and in 33 further locations.
    Please use spaces instead.
   |
35 |             | otherwise        = dm
   | ^^^^^^^^
[21 of 84] Compiling DSP.Source.Oscillator ( DSP/Source/Oscillator.hs, dist/build/DSP/Source/Oscillator.o )

DSP/Source/Oscillator.hs:16:1: warning: [-Wtabs]
    Tab character found here, and in 20 further locations.
    Please use spaces instead.
   |
16 |                               quadrature_nco, complex_ncom,
   | ^^^^^^^^
[22 of 84] Compiling DSP.Unwrap       ( DSP/Unwrap.hs, dist/build/DSP/Unwrap.o )

DSP/Unwrap.hs:28:1: warning: [-Wtabs]
    Tab character found here, and in 9 further locations.
    Please use spaces instead.
   |
28 |                                                 -> Array a b -- ^ arg
   | ^^^^^^^^
[23 of 84] Compiling DSP.Window       ( DSP/Window.hs, dist/build/DSP/Window.o )
[24 of 84] Compiling DSP.Filter.FIR.Window ( DSP/Filter/FIR/Window.hs, dist/build/DSP/Filter/FIR/Window.o )
[25 of 84] Compiling DSP.Filter.FIR.Kaiser ( DSP/Filter/FIR/Kaiser.hs, dist/build/DSP/Filter/FIR/Kaiser.o )

DSP/Filter/FIR/Kaiser.hs:68:1: warning: [-Wtabs]
    Tab character found here, and in 7 further locations.
    Please use spaces instead.
   |
68 |            -> Double -- ^ ws
   | ^^^^^^^^
[26 of 84] Compiling Matrix.Cholesky  ( Matrix/Cholesky.hs, dist/build/Matrix/Cholesky.o )

Matrix/Cholesky.hs:27:1: warning: [-Wtabs]
    Tab character found here, and in 12 further locations.
    Please use spaces instead.
   |
27 |                                             -> Array a (Complex b)     -- ^ b
   | ^^^^^^^^
[27 of 84] Compiling Matrix.Levinson  ( Matrix/Levinson.hs, dist/build/Matrix/Levinson.o )

Matrix/Levinson.hs:33:1: warning: [-Wtabs]
    Tab character found here, and in 12 further locations.
    Please use spaces instead.
   |
33 |                                             -> a                   -- ^ p
   | ^^^^^^^^
[28 of 84] Compiling DSP.Estimation.Spectral.AR ( DSP/Estimation/Spectral/AR.hs, dist/build/DSP/Estimation/Spectral/AR.o )

DSP/Estimation/Spectral/AR.hs:63:2: warning: [-Wtabs]
    Tab character found here, and in 21 further locations.
    Please use spaces instead.
   |
63 |           sig2 = realPart ((cxx 0 0) + sum [ a!k * (cxx 0 k) | k <- [1..p] ])
   |  ^^^^^^^
[29 of 84] Compiling DSP.Estimation.Spectral.MA ( DSP/Estimation/Spectral/MA.hs, dist/build/DSP/Estimation/Spectral/MA.o )

DSP/Estimation/Spectral/MA.hs:45:2: warning: [-Wtabs]
    Tab character found here.
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   |
45 |           a'          = array (0,l) ((0,1) : [ (i, a''!i) | i <- [1..l] ])
   |  ^^^^^^^
[30 of 84] Compiling Matrix.Simplex   ( Matrix/Simplex.hs, dist/build/Matrix/Simplex.o )

Matrix/Simplex.hs:151:1: warning: [-Wincomplete-patterns]
    Pattern match(es) are non-exhaustive
    In an equation for ‘gettab’:
        Patterns not matched:
            Unbounded
            Infeasible
    |
151 | gettab (Optimal a) = a
    | ^^^^^^^^^^^^^^^^^^^^^^

Matrix/Simplex.hs:155:1: warning: [-Wincomplete-patterns]
    Pattern match(es) are non-exhaustive
    In an equation for ‘cost’:
        Patterns not matched:
            Unbounded
            Infeasible
    |
155 | cost (Optimal a) = negate $ a!(0,0)
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[31 of 84] Compiling Matrix.Vector    ( Matrix/Vector.hs, dist/build/Matrix/Vector.o )
[32 of 84] Compiling Matrix.Sparse    ( Matrix/Sparse.hs, dist/build/Matrix/Sparse.o )
[33 of 84] Compiling Matrix.QR.Givens ( Matrix/QR/Givens.hs, dist/build/Matrix/QR/Givens.o )
[34 of 84] Compiling Matrix.Matrix    ( Matrix/Matrix.hs, dist/build/Matrix/Matrix.o )

Matrix/Matrix.hs:24:1: warning: [-Wtabs]
    Tab character found here, and in 16 further locations.
    Please use spaces instead.
   |
24 |         -> Array (j,k) a -- ^ B
   | ^^^^^^^^
[35 of 84] Compiling Matrix.QR.Householder ( Matrix/QR/Householder.hs, dist/build/Matrix/QR/Householder.o )
[36 of 84] Compiling Matrix.LU        ( Matrix/LU.hs, dist/build/Matrix/LU.o )
[37 of 84] Compiling DSP.Filter.IIR.Prony ( DSP/Filter/IIR/Prony.hs, dist/build/DSP/Filter/IIR/Prony.o )

DSP/Filter/IIR/Prony.hs:82:1: warning: [-Wtabs]
    Tab character found here, and in six further locations.
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   |
82 |           gi i | i < 0     = 0
   | ^^^^^^^^
[38 of 84] Compiling Numeric.Approximation.Chebyshev ( Numeric/Approximation/Chebyshev.hs, dist/build/Numeric/Approximation/Chebyshev.o )

Numeric/Approximation/Chebyshev.hs:22:1: warning: [-Wtabs]
    Tab character found here, and in 18 further locations.
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   |
22 |                                         cheby_eval) where
   | ^^^^^^^^
[39 of 84] Compiling Numeric.Random.Distribution.Binomial ( Numeric/Random/Distribution/Binomial.hs, dist/build/Numeric/Random/Distribution/Binomial.o )

Numeric/Random/Distribution/Binomial.hs:28:1: warning: [-Wtabs]
    Tab character found here, and in two further locations.
    Please use spaces instead.
   |
28 |          -> Double    -- ^ p
   | ^^^^^^^^
[40 of 84] Compiling Numeric.Random.Distribution.Exponential ( Numeric/Random/Distribution/Exponential.hs, dist/build/Numeric/Random/Distribution/Exponential.o )

Numeric/Random/Distribution/Exponential.hs:40:1: warning: [-Wtabs]
    Tab character found here, and in three further locations.
    Please use spaces instead.
   |
40 |                 -> [Double]  -- ^ U
   | ^^^^^^^^
[41 of 84] Compiling Numeric.Random.Distribution.Gamma ( Numeric/Random/Distribution/Gamma.hs, dist/build/Numeric/Random/Distribution/Gamma.o )

Numeric/Random/Distribution/Gamma.hs:36:1: warning: [-Wtabs]
    Tab character found here.
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   |
36 |           u' = drop n u
   | ^^^^^^^^
[42 of 84] Compiling Numeric.Random.Distribution.Geometric ( Numeric/Random/Distribution/Geometric.hs, dist/build/Numeric/Random/Distribution/Geometric.o )

Numeric/Random/Distribution/Geometric.hs:30:1: warning: [-Wtabs]
    Tab character found here, and in one further location.
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   |
30 |           -> [Double]  -- ^ U
   | ^^^^^^^^
[43 of 84] Compiling Numeric.Random.Distribution.Normal ( Numeric/Random/Distribution/Normal.hs, dist/build/Numeric/Random/Distribution/Normal.o )
[44 of 84] Compiling Numeric.Random.Distribution.Uniform ( Numeric/Random/Distribution/Uniform.hs, dist/build/Numeric/Random/Distribution/Uniform.o )
[45 of 84] Compiling Numeric.Random.Generator.MT19937 ( Numeric/Random/Generator/MT19937.hs, dist/build/Numeric/Random/Generator/MT19937.o )
[46 of 84] Compiling Numeric.Random.Spectrum.Brown ( Numeric/Random/Spectrum/Brown.hs, dist/build/Numeric/Random/Spectrum/Brown.o )
[47 of 84] Compiling Numeric.Random.Spectrum.Pink ( Numeric/Random/Spectrum/Pink.hs, dist/build/Numeric/Random/Spectrum/Pink.o )

Numeric/Random/Spectrum/Pink.hs:18:1: warning: [-Wtabs]
    Tab character found here, and in 19 further locations.
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   |
18 |                                      voss) where
   | ^^^^^^^^
[48 of 84] Compiling Numeric.Random.Spectrum.Purple ( Numeric/Random/Spectrum/Purple.hs, dist/build/Numeric/Random/Spectrum/Purple.o )
[49 of 84] Compiling Numeric.Random.Spectrum.White ( Numeric/Random/Spectrum/White.hs, dist/build/Numeric/Random/Spectrum/White.o )
[50 of 84] Compiling Numeric.Special.Trigonometric ( Numeric/Special/Trigonometric.hs, dist/build/Numeric/Special/Trigonometric.o )

Numeric/Special/Trigonometric.hs:2:1: warning: [-Wtabs]
    Tab character found here, and in 15 further locations.
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  |
2 |                                       acsc,  asec,  acot,
  | ^^^^^^^^
[51 of 84] Compiling Numeric.Statistics.Median ( Numeric/Statistics/Median.hs, dist/build/Numeric/Statistics/Median.o )
[52 of 84] Compiling Numeric.Statistics.Moment ( Numeric/Statistics/Moment.hs, dist/build/Numeric/Statistics/Moment.o )

Numeric/Statistics/Moment.hs:18:1: warning: [-Wtabs]
    Tab character found here, and in 13 further locations.
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   |
18 |                                   stddev, avgdev,
   | ^^^^^^^^
[53 of 84] Compiling Numeric.Statistics.Covariance ( Numeric/Statistics/Covariance.hs, dist/build/Numeric/Statistics/Covariance.o )

Numeric/Statistics/Covariance.hs:28:1: warning: [-Wtabs]
    Tab character found here, and in three further locations.
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   |
28 |           mu2 = mean x2
   | ^^^^^^^^
[54 of 84] Compiling Numeric.Random.Distribution.Poisson ( Numeric/Random/Distribution/Poisson.hs, dist/build/Numeric/Random/Distribution/Poisson.o )

Numeric/Random/Distribution/Poisson.hs:36:1: warning: [-Wtabs]
    Tab character found here, and in one further location.
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   |
36 |         -> [Double]  -- ^ uniformly distributed values from the interval [0,1]
   | ^^^^^^^^
[55 of 84] Compiling DSP.Covariance   ( DSP/Covariance.hs, dist/build/DSP/Covariance.o )
[56 of 84] Compiling Numeric.Statistics.TTest ( Numeric/Statistics/TTest.hs, dist/build/Numeric/Statistics/TTest.o )

Numeric/Statistics/TTest.hs:30:1: warning: [-Wtabs]
    Tab character found here, and in 18 further locations.
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   |
30 |           mu1 = Prelude.sum x1 / n1
   | ^^^^^^^^
[57 of 84] Compiling Numeric.Transform.Fourier.CT ( Numeric/Transform/Fourier/CT.hs, dist/build/Numeric/Transform/Fourier/CT.o )

Numeric/Transform/Fourier/CT.hs:27:1: warning: [-Wtabs]
    Tab character found here, and in 21 further locations.
    Please use spaces instead.
   |
27 |         -> a -- ^ nrows
   | ^^^^^^^^
[58 of 84] Compiling Numeric.Transform.Fourier.DFT ( Numeric/Transform/Fourier/DFT.hs, dist/build/Numeric/Transform/Fourier/DFT.o )

Numeric/Transform/Fourier/DFT.hs:44:1: warning: [-Wtabs]
    Tab character found here.
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   |
44 |           n = snd (bounds a) + 1
   | ^^^^^^^^
[59 of 84] Compiling Numeric.Transform.Fourier.FFTHard ( Numeric/Transform/Fourier/FFTHard.hs, dist/build/Numeric/Transform/Fourier/FFTHard.o )

Numeric/Transform/Fourier/FFTHard.hs:31:1: warning: [-Wtabs]
    Tab character found here, and in 43 further locations.
    Please use spaces instead.
   |
31 |                         (1, ((tmp1 - tmp2) :+ (tmp3 - tmp4) )) ]
   | ^^^^^^^^
[60 of 84] Compiling Numeric.Transform.Fourier.Goertzel ( Numeric/Transform/Fourier/Goertzel.hs, dist/build/Numeric/Transform/Fourier/Goertzel.o )

Numeric/Transform/Fourier/Goertzel.hs:30:1: warning: [-Wtabs]
    Tab character found here, and in 20 further locations.
    Please use spaces instead.
   |
30 |           -> b -- ^ k
   | ^^^^^^^^
[61 of 84] Compiling Numeric.Transform.Fourier.PFA ( Numeric/Transform/Fourier/PFA.hs, dist/build/Numeric/Transform/Fourier/PFA.o )

Numeric/Transform/Fourier/PFA.hs:27:1: warning: [-Wtabs]
    Tab character found here, and in 11 further locations.
    Please use spaces instead.
   |
27 |         -> a -- ^ nrows
   | ^^^^^^^^
[62 of 84] Compiling Numeric.Transform.Fourier.R2DIF ( Numeric/Transform/Fourier/R2DIF.hs, dist/build/Numeric/Transform/Fourier/R2DIF.o )

Numeric/Transform/Fourier/R2DIF.hs:29:1: warning: [-Wtabs]
    Tab character found here, and in 9 further locations.
    Please use spaces instead.
   |
29 |           -> a -- ^ N
   | ^^^^^^^^
[63 of 84] Compiling Numeric.Transform.Fourier.R2DIT ( Numeric/Transform/Fourier/R2DIT.hs, dist/build/Numeric/Transform/Fourier/R2DIT.o )

Numeric/Transform/Fourier/R2DIT.hs:35:1: warning: [-Wtabs]
    Tab character found here, and in 8 further locations.
    Please use spaces instead.
   |
35 |           -> a -- ^ N
   | ^^^^^^^^
[64 of 84] Compiling Numeric.Transform.Fourier.R4DIF ( Numeric/Transform/Fourier/R4DIF.hs, dist/build/Numeric/Transform/Fourier/R4DIF.o )

Numeric/Transform/Fourier/R4DIF.hs:29:1: warning: [-Wtabs]
    Tab character found here, and in 16 further locations.
    Please use spaces instead.
   |
29 |           -> a -- ^ N
   | ^^^^^^^^
[65 of 84] Compiling Numeric.Transform.Fourier.Rader ( Numeric/Transform/Fourier/Rader.hs, dist/build/Numeric/Transform/Fourier/Rader.o )

Numeric/Transform/Fourier/Rader.hs:30:1: warning: [-Wtabs]
    Tab character found here, and in 18 further locations.
    Please use spaces instead.
   |
30 |           -> a -- ^ N
   | ^^^^^^^^
[66 of 84] Compiling Numeric.Transform.Fourier.FFT ( Numeric/Transform/Fourier/FFT.hs, dist/build/Numeric/Transform/Fourier/FFT.o )

Numeric/Transform/Fourier/FFT.hs:67:1: warning: [-Wtabs]
    Tab character found here, and in 30 further locations.
    Please use spaces instead.
   |
67 |                     | (n `mod` i) == 0 && gcd i (n `div` i) == 1 = loop1 (i+1) i
   | ^^^^^^^^
[67 of 84] Compiling Numeric.Transform.Fourier.FFTUtils ( Numeric/Transform/Fourier/FFTUtils.hs, dist/build/Numeric/Transform/Fourier/FFTUtils.o )
[68 of 84] Compiling Numeric.Transform.Fourier.Eigensystem ( Numeric/Transform/Fourier/Eigensystem.hs, dist/build/Numeric/Transform/Fourier/Eigensystem.o )
[69 of 84] Compiling DSP.FastConvolution ( DSP/FastConvolution.hs, dist/build/DSP/FastConvolution.o )

DSP/FastConvolution.hs:29:1: warning: [-Wtabs]
    Tab character found here, and in two further locations.
    Please use spaces instead.
   |
29 |           m2  = snd $ bounds h2
   | ^^^^^^^^
[70 of 84] Compiling Numeric.Transform.Fourier.SRDIF ( Numeric/Transform/Fourier/SRDIF.hs, dist/build/Numeric/Transform/Fourier/SRDIF.o )

Numeric/Transform/Fourier/SRDIF.hs:29:1: warning: [-Wtabs]
    Tab character found here, and in 14 further locations.
    Please use spaces instead.
   |
29 |           -> a -- ^ N
   | ^^^^^^^^
[71 of 84] Compiling Numeric.Transform.Fourier.SlidingFFT ( Numeric/Transform/Fourier/SlidingFFT.hs, dist/build/Numeric/Transform/Fourier/SlidingFFT.o )

Numeric/Transform/Fourier/SlidingFFT.hs:56:1: warning: [-Wtabs]
    Tab character found here, and in two further locations.
    Please use spaces instead.
   |
56 |                       | otherwise       = []
   | ^^^^^^^^
[72 of 84] Compiling Polynomial.Basic ( Polynomial/Basic.hs, dist/build/Polynomial/Basic.o )
[73 of 84] Compiling DSP.Filter.IIR.Bilinear ( DSP/Filter/IIR/Bilinear.hs, dist/build/DSP/Filter/IIR/Bilinear.o )

DSP/Filter/IIR/Bilinear.hs:87:1: warning: [-Wtabs]
    Tab character found here, and in six further locations.
    Please use spaces instead.
   |
87 |          -> ([Double],[Double]) -- ^ (b,a)
   | ^^^^^^^^
[74 of 84] Compiling DSP.Filter.FIR.Smooth ( DSP/Filter/FIR/Smooth.hs, dist/build/DSP/Filter/FIR/Smooth.o )

DSP/Filter/FIR/Smooth.hs:37:1: warning: [-Wincomplete-patterns]
    Pattern match(es) are non-exhaustive
    In an equation for ‘expand’: Patterns not matched: []
   |
37 | expand (x1:x2:[]) = [ x1, x2 ]
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^...

DSP/Filter/FIR/Smooth.hs:42:11: warning: [-Wincomplete-patterns]
    Pattern match(es) are non-exhaustive
    In an equation for ‘m1’: Patterns not matched: []
   |
42 |     where m1 (y:ys) = y : map (0.5*) ys
   |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

DSP/Filter/FIR/Smooth.hs:43:1: warning: [-Wtabs]
    Tab character found here, and in five further locations.
    Please use spaces instead.
   |
43 |           p1 (_:ys) = map (0.5*) ys ++ [ 0, 0 ]
   | ^^^^^^^^

DSP/Filter/FIR/Smooth.hs:43:11: warning: [-Wincomplete-patterns]
    Pattern match(es) are non-exhaustive
    In an equation for ‘p1’: Patterns not matched: []
   |
43 |           p1 (_:ys) = map (0.5*) ys ++ [ 0, 0 ]
   |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

DSP/Filter/FIR/Smooth.hs:48:1: warning: [-Wincomplete-patterns]
    Pattern match(es) are non-exhaustive
    In an equation for ‘reflect’: Patterns not matched: []
   |
48 | reflect (x:xs) = (map (0.5*) $ reverse xs) ++ x : (map (0.5*) xs)
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[75 of 84] Compiling DSP.Filter.FIR.PolyInterp ( DSP/Filter/FIR/PolyInterp.hs, dist/build/DSP/Filter/FIR/PolyInterp.o )

DSP/Filter/FIR/PolyInterp.hs:42:1: warning: [-Wtabs]
    Tab character found here, and in 573 further locations.
    Please use spaces instead.
   |
42 |           p2 = p `div` 2
   | ^^^^^^^^
[76 of 84] Compiling DSP.Filter.Analog.Transform ( DSP/Filter/Analog/Transform.hs, dist/build/DSP/Filter/Analog/Transform.o )
[77 of 84] Compiling DSP.Filter.IIR.Transform ( DSP/Filter/IIR/Transform.hs, dist/build/DSP/Filter/IIR/Transform.o )
[78 of 84] Compiling DSP.Filter.Analog.Prototype ( DSP/Filter/Analog/Prototype.hs, dist/build/DSP/Filter/Analog/Prototype.o )

DSP/Filter/Analog/Prototype.hs:43:1: warning: [-Wtabs]
    Tab character found here, and in 23 further locations.
    Please use spaces instead.
   |
43 |             -> ([Double],[Double]) -- ^ (b,a)
   | ^^^^^^^^
[79 of 84] Compiling DSP.Filter.IIR.Design ( DSP/Filter/IIR/Design.hs, dist/build/DSP/Filter/IIR/Design.o )

DSP/Filter/IIR/Design.hs:99:1: warning: [-Wtabs]
    Tab character found here, and in 25 further locations.
    Please use spaces instead.
   |
99 |                                bilinear 1  $
   | ^^^^^^^^
[80 of 84] Compiling Polynomial.Chebyshev ( Polynomial/Chebyshev.hs, dist/build/Polynomial/Chebyshev.o )
[81 of 84] Compiling DSP.Filter.Analog.Response ( DSP/Filter/Analog/Response.hs, dist/build/DSP/Filter/Analog/Response.o )

DSP/Filter/Analog/Response.hs:26:1: warning: [-Wtabs]
    Tab character found here, and in 10 further locations.
    Please use spaces instead.
   |
26 |               -> Double -- ^ w_c
   | ^^^^^^^^
[82 of 84] Compiling Polynomial.Maclaurin ( Polynomial/Maclaurin.hs, dist/build/Polynomial/Maclaurin.o )

Polynomial/Maclaurin.hs:26:1: warning: [-Wtabs]
    Tab character found here, and in five further locations.
    Please use spaces instead.
   |
26 |                              polycos, polysin, polyatan,
   | ^^^^^^^^
[83 of 84] Compiling Polynomial.Roots ( Polynomial/Roots.hs, dist/build/Polynomial/Roots.o )

Polynomial/Roots.hs:85:1: warning: [-Wtabs]
    Tab character found here, and in 63 further locations.
    Please use spaces instead.
   |
85 |         --
   | ^^^^^^^^
[84 of 84] Compiling DSP.Filter.IIR.Matchedz ( DSP/Filter/IIR/Matchedz.hs, dist/build/DSP/Filter/IIR/Matchedz.o )

DSP/Filter/IIR/Matchedz.hs:28:1: warning: [-Wtabs]
    Tab character found here, and in six further locations.
    Please use spaces instead.
   |
28 |          -> ([Double],[Double]) -- ^ (b,a)
   | ^^^^^^^^
> /tmp/stackage-build2453/dsp-0.2.4.1$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2453/dsp-0.2.4.1$ ./Setup copy
Installing library in /home/circleci/project/builds/nightly/lib/x86_64-linux-ghc-8.7.20181120/dsp-0.2.4.1-AGZKm1OOLq65cyBUQeQ9gL
> /tmp/stackage-build2453/dsp-0.2.4.1$ ghc -clear-package-db -global-package-db -package-db=/home/circleci/project/builds/nightly/pkgdb Setup
> /tmp/stackage-build2453/dsp-0.2.4.1$ ./Setup register
Registering library for dsp-0.2.4.1..