Update ci.sh to use MSRV for builds

Also add rust version to the toml.

Signed-off-by: Gowtham Suresh Kumar <gowtham.sureshkumar@arm.com>

Author: gowthamsk-arm

Cargo.toml

@@ -10,6 +10,7 @@ keywords = ["parsec", "cli", "tool"]
 categories = ["development-tools", "command-line-utilities"]
 edition = "2018"
 documentation = "https://docs.rs/crate/parsec-tool"
+rust-version = "1.66.0"
 
 [dependencies]
 ansi_term = "0.12.1"

tests/ci.sh

@@ -8,12 +8,14 @@ set -xeuf -o pipefail
 # Points to Parsec's Unix Domain Socket on the CI
 export PARSEC_SERVICE_ENDPOINT="unix:/tmp/parsec.sock"
 export RUST_LOG=error
+MSRV=1.66.0
 
 #########
 # Build #
 #########
-RUST_BACKTRACE=1 cargo build
-RUST_BACKTRACE=1 cargo build --features spiffe-auth
+rustup toolchain install ${MSRV}
+RUST_BACKTRACE=1 cargo +${MSRV} build
+RUST_BACKTRACE=1 cargo +${MSRV} build --features spiffe-auth
 
 #################
 # Static checks #