Update LibAFL and test for regressions. (google#1963)

We are soon to release libafl 0.12
before doing so we want to do a fuzzbench run since this update includes
lots of changes to the core part of LibAFL.

each of libafl_pre012_0, libafl_pre012_1, libafl_012_2, libafl_pre012_3,
is using the commit right after some changes.

fuzzers/libafl/builder.Dockerfile

@@ -26,19 +26,25 @@ RUN apt-get update && \
     apt-get remove -y llvm-10 && \
     apt-get install -y \
         build-essential \
-        llvm-11 \
-        clang-12 \
-        cargo && \
+        lsb-release wget software-properties-common gnupg && \
     apt-get install -y wget libstdc++5 libtool-bin automake flex bison \
         libglib2.0-dev libpixman-1-dev python3-setuptools unzip \
         apt-utils apt-transport-https ca-certificates joe curl && \
-    PATH="/root/.cargo/bin/:$PATH" cargo install cargo-make
+    wget https://apt.llvm.org/llvm.sh && chmod +x llvm.sh && ./llvm.sh 17
+
+RUN wget https://gist.githubusercontent.com/tokatoka/26f4ba95991c6e33139999976332aa8e/raw/698ac2087d58ce5c7a6ad59adce58dbfdc32bd46/createAliases.sh && chmod u+x ./createAliases.sh && ./createAliases.sh 
+
+# Uninstall old Rust & Install the latest one.
+RUN if which rustup; then rustup self uninstall -y; fi && \
+    curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs > /rustup.sh && \
+    sh /rustup.sh --default-toolchain nightly-2024-03-12 -y && \
+    rm /rustup.sh
 
 # Download libafl.
 RUN git clone https://github.com/AFLplusplus/LibAFL /libafl
 
 # Checkout a current commit
-RUN cd /libafl && git pull && git checkout b20fda2a4ada2a6462718dc661e139e6c7a29807 || true
+RUN cd /libafl && git pull && git checkout b4efb6151550a37f61a869acf2957a1b07894a93 || true
 # Note that due a nightly bug it is currently fixed to a known version on top!
 
 # Compile libafl.

fuzzers/libafl/fuzzer.py

@@ -49,8 +49,9 @@ def build():  # pylint: disable=too-many-branches,too-many-statements
     os.environ['UBSAN_OPTIONS'] = 'abort_on_error=0'
 
     cflags = ['--libafl']
+    cxxflags = ['--libafl', '--std=c++14']
     utils.append_flags('CFLAGS', cflags)
-    utils.append_flags('CXXFLAGS', cflags)
+    utils.append_flags('CXXFLAGS', cxxflags)
     utils.append_flags('LDFLAGS', cflags)
 
     os.environ['FUZZER_LIB'] = '/stub_rt.a'