gcovr fails to find readline.h at its original place

HTML report generation fails with:

    FileNotFoundError: [Errno 2] No such file or directory: 'bin/dig/readline.h'
    FileNotFoundError: [Errno 2] No such file or directory: 'bin/nsupdate/readline.h'
74 jobs for !3980 with mnowak/gcovr-copy-readline.h in 7 seconds (queued for 8 seconds)
detached
Status Job ID Name Coverage
  Autoconf
canceled #1088189
linux amd64
autoreconf

00:00:06

 
  Precheck
canceled #1088191
linux amd64
clang-format

00:00:06

canceled #1088192
linux amd64
coccinelle

00:00:05

canceled #1088193
linux amd64
danger

00:00:05

canceled #1088190
linux amd64
misc

00:00:06

canceled #1088194
linux amd64
tarball-create

 
  Build
canceled #1088207
linux amd64
clang:asan

canceled #1088211
linux amd64
clang:buster:amd64

canceled #1088214
amd64 libvirt
clang:freebsd11:amd64

canceled #1088215
amd64 libvirt
clang:freebsd12:amd64

canceled #1088216
amd64 libvirt
clang:openbsd:amd64

canceled #1088209
linux amd64
clang:tsan

canceled #1088195
linux amd64
gcc:alpine3.12:amd64

canceled #1088206
linux amd64
gcc:asan

canceled #1088199
linux amd64
gcc:buster:amd64

canceled #1088196
linux amd64
gcc:centos7:amd64

canceled #1088197
linux amd64
gcc:centos8:amd64

canceled #1088205
linux amd64
gcc:focal:amd64

canceled #1088210
linux amd64
gcc:mutexatomics

canceled #1088201
linux amd64
gcc:out-of-tree

canceled #1088200
linux amd64
gcc:sid:amd64

canceled #1088202
linux i386
gcc:sid:i386

canceled #1088212
linux amd64
gcc:softhsm2.4

canceled #1088213
linux amd64
gcc:softhsm2.6

canceled #1088198
linux amd64
gcc:stretch:amd64

canceled #1088208
linux amd64
gcc:tsan

canceled #1088203
linux amd64
gcc:tumbleweed:amd64

canceled #1088204
linux amd64
gcc:xenial:amd64

canceled #1088217
amd64 windows
msvc:windows:amd64

00:00:04

 
  Unit
canceled #1088229
linux amd64
unit:clang:asan

canceled #1088233
linux amd64
unit:clang:buster:amd64

canceled #1088236
amd64 libvirt
unit:clang:freebsd11:amd64

canceled #1088237
amd64 libvirt
unit:clang:freebsd12:amd64

canceled #1088231
linux amd64 allowed to fail
unit:clang:tsan

canceled #1088218
linux amd64
unit:gcc:alpine3.12:amd64

canceled #1088228
linux amd64
unit:gcc:asan

canceled #1088222
linux amd64
unit:gcc:buster:amd64

canceled #1088219
linux amd64
unit:gcc:centos7:amd64

canceled #1088220
linux amd64
unit:gcc:centos8:amd64

canceled #1088227
linux amd64
unit:gcc:focal:amd64

canceled #1088232
linux amd64
unit:gcc:mutexatomics

canceled #1088223
linux amd64
unit:gcc:sid:amd64

canceled #1088224
linux i386
unit:gcc:sid:i386

canceled #1088234
linux amd64
unit:gcc:softhsm2.4

canceled #1088235
linux amd64
unit:gcc:softhsm2.6

canceled #1088221
linux amd64
unit:gcc:stretch:amd64

canceled #1088230
linux amd64 allowed to fail
unit:gcc:tsan

canceled #1088225
linux amd64
unit:gcc:tumbleweed:amd64

canceled #1088226
linux amd64
unit:gcc:xenial:amd64

 
  System
canceled #1088249
linux amd64
system:clang:asan

canceled #1088253
linux amd64
system:clang:buster:amd64

canceled #1088256
amd64 libvirt
system:clang:freebsd11:amd64

canceled #1088257
amd64 libvirt
system:clang:freebsd12:amd64

canceled #1088251
linux amd64 allowed to fail
system:clang:tsan

canceled #1088238
linux amd64
system:gcc:alpine3.12:amd64

canceled #1088248
linux amd64
system:gcc:asan

canceled #1088242
linux amd64
system:gcc:buster:amd64

canceled #1088239
linux amd64
system:gcc:centos7:amd64

canceled #1088240
linux amd64
system:gcc:centos8:amd64

canceled #1088247
linux amd64
system:gcc:focal:amd64

canceled #1088252
linux amd64
system:gcc:mutexatomics

canceled #1088243
linux amd64
system:gcc:sid:amd64

canceled #1088244
linux i386
system:gcc:sid:i386

canceled #1088254
linux amd64
system:gcc:softhsm2.4

canceled #1088255
linux amd64
system:gcc:softhsm2.6

canceled #1088241
linux amd64
system:gcc:stretch:amd64

canceled #1088250
linux amd64 allowed to fail
system:gcc:tsan

canceled #1088245
linux amd64
system:gcc:tumbleweed:amd64

canceled #1088246
linux amd64
system:gcc:xenial:amd64

 
  Docs
canceled #1088258
linux amd64
docs

 
  Postcheck
canceled #1088262
linux amd64
cppcheck

canceled #1088259
linux amd64
flake8

canceled #1088260
linux amd64
pylint

canceled #1088261
linux amd64
scan-build