[INFO] cloning repository https://github.com/dorakueyon/rust-monkey-compiler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dorakueyon/rust-monkey-compiler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdorakueyon%2Frust-monkey-compiler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdorakueyon%2Frust-monkey-compiler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 96bac4f880cead8f423f71c31ac8bf2cfe35944d
[INFO] checking dorakueyon/rust-monkey-compiler against try#b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f for pr-76104
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdorakueyon%2Frust-monkey-compiler" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dorakueyon/rust-monkey-compiler on toolchain b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dorakueyon/rust-monkey-compiler
[INFO] finished tweaking git repo https://github.com/dorakueyon/rust-monkey-compiler
[INFO] tweaked toml for git repo https://github.com/dorakueyon/rust-monkey-compiler written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/dorakueyon/rust-monkey-compiler already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "metadata" "--no-deps" "--format-version=1", 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] a6d98277f64f4f879a6140c869759ad28bc5d770ab66592ca0711ce5e57bfac7
[INFO] running `Command { std: "docker" "start" "-a" "a6d98277f64f4f879a6140c869759ad28bc5d770ab66592ca0711ce5e57bfac7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a6d98277f64f4f879a6140c869759ad28bc5d770ab66592ca0711ce5e57bfac7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6d98277f64f4f879a6140c869759ad28bc5d770ab66592ca0711ce5e57bfac7", kill_on_drop: false }`
[INFO] [stdout] a6d98277f64f4f879a6140c869759ad28bc5d770ab66592ca0711ce5e57bfac7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "check" "--frozen" "--all" "--all-targets" "--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] 6ab683ba95486557e05ce02df3590d9c3ae56b0a115c64ce6ea0b81c104a96d5
[INFO] running `Command { std: "docker" "start" "-a" "6ab683ba95486557e05ce02df3590d9c3ae56b0a115c64ce6ea0b81c104a96d5", kill_on_drop: false }`
[INFO] [stderr]     Checking rust-monkey v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Lexer`, `Parser`
[INFO] [stdout]  --> src/evaluator.rs:2:76
[INFO] [stdout]   |
[INFO] [stdout] 2 |     BlockStatement, Environment, Errors, Expression, HashPair, Identifier, Lexer, Object, Parser,
[INFO] [stdout]   |                                                                            ^^^^^          ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.71s
[INFO] running `Command { std: "docker" "inspect" "6ab683ba95486557e05ce02df3590d9c3ae56b0a115c64ce6ea0b81c104a96d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ab683ba95486557e05ce02df3590d9c3ae56b0a115c64ce6ea0b81c104a96d5", kill_on_drop: false }`
[INFO] [stdout] 6ab683ba95486557e05ce02df3590d9c3ae56b0a115c64ce6ea0b81c104a96d5