[INFO] cloning repository https://github.com/MohamedMoustafaNUIG/Rust-Syntax
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MohamedMoustafaNUIG/Rust-Syntax" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMohamedMoustafaNUIG%2FRust-Syntax", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMohamedMoustafaNUIG%2FRust-Syntax'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 852e70928e2f584abd7744a7a4a946af5aa22448
[INFO] testing MohamedMoustafaNUIG/Rust-Syntax against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMohamedMoustafaNUIG%2FRust-Syntax" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MohamedMoustafaNUIG/Rust-Syntax on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/MohamedMoustafaNUIG/Rust-Syntax
[INFO] finished tweaking git repo https://github.com/MohamedMoustafaNUIG/Rust-Syntax
[INFO] tweaked toml for git repo https://github.com/MohamedMoustafaNUIG/Rust-Syntax written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/MohamedMoustafaNUIG/Rust-Syntax already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4180db59e85b1adca4f401130d6db87a4b916dfcb16c1f12bb80a0bb8df51059
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "4180db59e85b1adca4f401130d6db87a4b916dfcb16c1f12bb80a0bb8df51059", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4180db59e85b1adca4f401130d6db87a4b916dfcb16c1f12bb80a0bb8df51059", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4180db59e85b1adca4f401130d6db87a4b916dfcb16c1f12bb80a0bb8df51059", kill_on_drop: false }`
[INFO] [stdout] 4180db59e85b1adca4f401130d6db87a4b916dfcb16c1f12bb80a0bb8df51059
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f02fbe4eb3b9c0f371c30344e21d5fcad426519aff244db39599514505141bea
[INFO] running `Command { std: "docker" "start" "-a" "f02fbe4eb3b9c0f371c30344e21d5fcad426519aff244db39599514505141bea", kill_on_drop: false }`
[INFO] [stderr]    Compiling basic_rust_syntax v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: 1 positional argument in format string, but no arguments were given
[INFO] [stdout]    --> src/main.rs:156:13
[INFO] [stdout]     |
[INFO] [stdout] 156 |         println!("{}", );
[INFO] [stdout]     |                   ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `basic_rust_syntax`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "f02fbe4eb3b9c0f371c30344e21d5fcad426519aff244db39599514505141bea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f02fbe4eb3b9c0f371c30344e21d5fcad426519aff244db39599514505141bea", kill_on_drop: false }`
[INFO] [stdout] f02fbe4eb3b9c0f371c30344e21d5fcad426519aff244db39599514505141bea