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
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Resolving dependencies...
Starting     random-1.1
Building     random-1.1
Completed    random-1.1
Starting     hedra-0.1
Building     hedra-0.1
Failed to install hedra-0.1
Build log ( /home/builder/.cabal/logs/ghc-8.6.3/hedra-0.1-B0WUWytgPel4yP5M0BKBlw.log ):
cabal: Entering directory '/tmp/cabal-tmp-26747/hedra-0.1'
Configuring hedra-0.1...
Preprocessing library for hedra-0.1..
Building library for hedra-0.1..
[1 of 1] Compiling Hedra            ( src/Hedra.hs, dist/build/Hedra.o )
Preprocessing executable 'hedra' for hedra-0.1..
Building executable 'hedra' for hedra-0.1..
[1 of 1] Compiling Main             ( app/Main.hs, dist/build/hedra/hedra-tmp/Main.o )
Linking dist/build/hedra/hedra ...
/usr/bin/ld.gold: error: cannot find -ltinfo
/opt/ghc/8.6.3/lib/ghc-8.6.3/haskeline-0.7.4.3/libHShaskeline-0.7.4.3.a(Terminfo.o)(.text.sn2l_info+0x183): error: undefined reference to 'set_curterm'
/opt/ghc/8.6.3/lib/ghc-8.6.3/haskeline-0.7.4.3/libHShaskeline-0.7.4.3.a(Terminfo.o)(.text.sn2l_info+0x1bb): error: undefined reference to 'set_curterm'
/opt/ghc/8.6.3/lib/ghc-8.6.3/haskeline-0.7.4.3/libHShaskeline-0.7.4.3.a(Terminfo.o)(.text.sn2l_info+0x1dd): error: undefined reference to 'set_curterm'
/opt/ghc/8.6.3/lib/ghc-8.6.3/haskeline-0.7.4.3/libHShaskeline-0.7.4.3.a(Terminfo.o)(.text.sn2l_info+0x20b): error: undefined reference to 'set_curterm'
/opt/ghc/8.6.3/lib/ghc-8.6.3/terminfo-0.4.1.2/libHSterminfo-0.4.1.2.a(Base.o)(.text.r9zE_info+0x102): error: undefined reference to 'tigetnum'
/opt/ghc/8.6.3/lib/ghc-8.6.3/terminfo-0.4.1.2/libHSterminfo-0.4.1.2.a(Base.o)(.text.r9zF_info+0x102): error: undefined reference to 'tigetflag'
/opt/ghc/8.6.3/lib/ghc-8.6.3/terminfo-0.4.1.2/libHSterminfo-0.4.1.2.a(Base.o)(.text.r9zG_info+0xfa): error: undefined reference to 'tigetstr'
/opt/ghc/8.6.3/lib/ghc-8.6.3/terminfo-0.4.1.2/libHSterminfo-0.4.1.2.a(Base.o)(.text.s9IB_info+0x23c): error: undefined reference to 'tparm'
/opt/ghc/8.6.3/lib/ghc-8.6.3/terminfo-0.4.1.2/libHSterminfo-0.4.1.2.a(Base.o)(.text.s9Kw_info+0x132): error: undefined reference to 'del_curterm'
/opt/ghc/8.6.3/lib/ghc-8.6.3/terminfo-0.4.1.2/libHSterminfo-0.4.1.2.a(Base.o)(.text.s9Kw_info+0x241): error: undefined reference to 'setupterm'
/opt/ghc/8.6.3/lib/ghc-8.6.3/terminfo-0.4.1.2/libHSterminfo-0.4.1.2.a(Base.o)(.text.s9Mm_info+0x131): error: undefined reference to 'tputs'
collect2: error: ld returned 1 exit status
`gcc' failed in phase `Linker'. (Exit code: 1)
cabal: Leaving directory '/tmp/cabal-tmp-26747/hedra-0.1'
cabal: Error: some packages failed to install:
hedra-0.1-B0WUWytgPel4yP5M0BKBlw failed during the building phase. The
exception was:
ExitFailure 1