[INFO] cloning repository https://github.com/KubaJagiello/Lox-interpreter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/KubaJagiello/Lox-interpreter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKubaJagiello%2FLox-interpreter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKubaJagiello%2FLox-interpreter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 95bfd08ffae967fa7d136a05f4564136ad6c843c
[INFO] checking KubaJagiello/Lox-interpreter against master#c756124775121dea0e640652c5ee3c89e3dd0eb4 for pr-154971-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKubaJagiello%2FLox-interpreter" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/KubaJagiello/Lox-interpreter
[INFO] finished tweaking git repo https://github.com/KubaJagiello/Lox-interpreter
[INFO] tweaked toml for git repo https://github.com/KubaJagiello/Lox-interpreter written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/KubaJagiello/Lox-interpreter on toolchain c756124775121dea0e640652c5ee3c89e3dd0eb4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c756124775121dea0e640652c5ee3c89e3dd0eb4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/KubaJagiello/Lox-interpreter already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c756124775121dea0e640652c5ee3c89e3dd0eb4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+c756124775121dea0e640652c5ee3c89e3dd0eb4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a50e2dda389d962681dd0e574ea69ff05ee4737c37493f58122d3185e5b0c5f6
[INFO] running `Command { std: "docker" "start" "-a" "a50e2dda389d962681dd0e574ea69ff05ee4737c37493f58122d3185e5b0c5f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a50e2dda389d962681dd0e574ea69ff05ee4737c37493f58122d3185e5b0c5f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a50e2dda389d962681dd0e574ea69ff05ee4737c37493f58122d3185e5b0c5f6", kill_on_drop: false }`
[INFO] [stdout] a50e2dda389d962681dd0e574ea69ff05ee4737c37493f58122d3185e5b0c5f6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+c756124775121dea0e640652c5ee3c89e3dd0eb4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0b309b227c89c456a17cc9d28634d76ee221dfdc99ba884f87087bbb67b1bfde
[INFO] running `Command { std: "docker" "start" "-a" "0b309b227c89c456a17cc9d28634d76ee221dfdc99ba884f87087bbb67b1bfde", kill_on_drop: false }`
[INFO] [stderr]     Checking lox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `base_name`
[INFO] [stdout]   --> src/bin/generate_ast.rs:46:46
[INFO] [stdout]    |
[INFO] [stdout] 46 | fn define_type(writer: &mut BufWriter<File>, base_name: &str, struct_name: &str, field_list: &str) {
[INFO] [stdout]    |                                              ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_base_name`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `base_name`
[INFO] [stdout]   --> src/bin/generate_ast.rs:46:46
[INFO] [stdout]    |
[INFO] [stdout] 46 | fn define_type(writer: &mut BufWriter<File>, base_name: &str, struct_name: &str, field_list: &str) {
[INFO] [stdout]    |                                              ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_base_name`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] running `Command { std: "docker" "inspect" "0b309b227c89c456a17cc9d28634d76ee221dfdc99ba884f87087bbb67b1bfde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b309b227c89c456a17cc9d28634d76ee221dfdc99ba884f87087bbb67b1bfde", kill_on_drop: false }`
[INFO] [stdout] 0b309b227c89c456a17cc9d28634d76ee221dfdc99ba884f87087bbb67b1bfde