Pin our version of Rust to 1.37.0 in our build system, which mostly works

build.sh

@@ -4,5 +4,28 @@
 # file COPYING or https://www.gnu.org/licenses/gpl-3.0.en.html
 
 set -eu -o pipefail
-cd cli
-cargo build --release
+
+# TODO: find elite Rust coders to update our shit
+# to work on modern versions of rustc, lulz
+
+PREFIX=rust-1.37.0-x86_64-unknown-linux-gnu
+FILE=$PREFIX.tar.gz
+
+if [ ! -f "$FILE" ]; then
+    wget https://static.rust-lang.org/dist/$FILE
+fi
+
+#TODO: verify SHA256
+# cb573229bfd32928177c3835fdeb62d52da64806b844bc1095c6225b0665a1cb  rust-1.37.0-x86_64-unknown-linux-gnu.tar.gz
+
+tar zxvpf $FILE
+mkdir -p build
+cd $PREFIX
+./install.sh --prefix=$(pwd)/../build
+
+cd ../cli
+PATH=$(pwd)/../build/bin/:$PATH
+echo PATH=$PATH
+cargo --version
+rustc --version
+../build/bin/cargo build --verbose --release