Build error cannot inline function with v0.15.2

[pbrisbin]

I have the following dockerfile,

FROM dlanguage/dmd:2.080.0 as builder
LABEL maintainer="Pat Brisbin <pbrisbin@gmail.com>"
ENV DEBIAN_FRONTEND noninteractive
ENV DFMT_VERSION v0.15.2
ENV LANG en_US.UTF-8
RUN \
  apt-get update && \
  apt-get install -y --no-install-recommends \
    build-essential=12.1ubuntu2 \
    git=1:2.7.4-0ubuntu1 && \
  rm -rf /var/lib/apt/lists/*
RUN git clone https://github.com/dlang-community/dfmt /dfmt
WORKDIR /dfmt
RUN git reset --hard "$DFMT_VERSION"
RUN git submodule update --init --recursive
RUN make

This worked with v0.14.2, but it fails with v0.15.2:

 > [builder 7/7] RUN make:
0.229 mkdir -p bin
0.230 git describe --tags > bin/githash.txt
0.235 dmd -O -inline -w -Ilibdparse/src -Isrc -Jbin  src/dfmt/main.d src/dfmt/config.d src/dfmt/editorconfig.d src/dfmt/wrapping.d src/dfmt/indentation.d src/dfmt/tokens.d src/dfmt/globmatch_editorconfig.d src/dfmt/ast_info.d src/dfmt/formatter.d libdparse/src/std/experimental/lexer.d libdparse/src/dparse/entities.d libdparse/src/dparse/stack_buffer.d libdparse/src/dparse/trivia.d libdparse/src/dparse/astprinter.d libdparse/src/dparse/lexer.d libdparse/src/dparse/strings.d libdparse/src/dparse/parser.d libdparse/src/dparse/rollback_allocator.d libdparse/src/dparse/formatter.d libdparse/src/dparse/ast.d -ofbin/dfmt
3.299 libdparse/src/dparse/parser.d(773): Error: function `dparse.parser.Parser.parseAsmLogOrExp` cannot inline function
3.300 libdparse/src/dparse/parser.d(7352): Error: function `dparse.parser.Parser.parseTernaryExpression` cannot inline function
3.301 libdparse/src/dparse/parser.d(6101): Error: function `dparse.parser.Parser.parseShiftExpression` cannot inline function
3.301 libdparse/src/dparse/parser.d(5999): Error: function `dparse.parser.Parser.parseRelExpression` cannot inline function
3.301 libdparse/src/dparse/parser.d(3170): Error: function `dparse.parser.Parser.parseExpression` cannot inline function
3.303 libdparse/src/dparse/parser.d(3170): Error: function `dparse.parser.Parser.parseExpression` cannot inline function
3.304 libdparse/src/dparse/parser.d(3881): Error: function `dparse.parser.Parser.parseGccAsmOperandList` cannot inline function
3.305 libdparse/src/dparse/parser.d(7130): Error: function `dparse.parser.Parser.parseTemplateParameterList` cannot inline function
3.305 libdparse/src/dparse/parser.d(5109): Error: function `dparse.parser.Parser.parseNamespaceList` cannot inline function
3.306 libdparse/src/dparse/parser.d(1549): Error: function `dparse.parser.Parser.parseBaseClassList` cannot inline function
3.309 libdparse/src/dparse/parser.d(5299): Error: function `dparse.parser.Parser.parseOrOrExpression` cannot inline function
3.309 libdparse/src/dparse/parser.d(6949): Error: function `dparse.parser.Parser.parseTemplateArgumentList` cannot inline function
3.312 libdparse/src/dparse/parser.d(5094): Error: function `dparse.parser.Parser.parseMulExpression` cannot inline function
3.312 libdparse/src/dparse/parser.d(5283): Error: function `dparse.parser.Parser.parseOrExpression` cannot inline function
3.312 libdparse/src/dparse/parser.d(788): Error: function `dparse.parser.Parser.parseAsmMulExp` cannot inline function
3.313 libdparse/src/dparse/parser.d(647): Error: function `dparse.parser.Parser.parseAsmEqualExp` cannot inline function
3.313 libdparse/src/dparse/parser.d(869): Error: function `dparse.parser.Parser.parseAsmRelExp` cannot inline function
3.313 libdparse/src/dparse/parser.d(803): Error: function `dparse.parser.Parser.parseAsmOrExp` cannot inline function
3.313 libdparse/src/dparse/parser.d(758): Error: function `dparse.parser.Parser.parseAsmLogAndExp` cannot inline function
3.313 libdparse/src/dparse/parser.d(1095): Error: function `dparse.parser.Parser.parseAsmXorExp` cannot inline function
3.360 makefile:45: recipe for target 'bin/dfmt' failed

As per the README, I also tried with dub build --build=release, but that also fails:

 > [builder 6/6] RUN dub build --build=release:
1.437 Fetching libdparse 0.24.0 (getting selected version)...
2.166 Invalid source/import path: /dfmt/bin
2.166 Invalid variable: DC