[INFO] cloning repository https://github.com/janmarthedal/simple-scheme-interpreter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/janmarthedal/simple-scheme-interpreter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjanmarthedal%2Fsimple-scheme-interpreter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjanmarthedal%2Fsimple-scheme-interpreter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3db119a6ddfe00b85563b23eadf0fa2fa190d52b
[INFO] linting janmarthedal/simple-scheme-interpreter against nightly for clippy-nonminimal_bool-denied
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjanmarthedal%2Fsimple-scheme-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/janmarthedal/simple-scheme-interpreter
[INFO] finished tweaking git repo https://github.com/janmarthedal/simple-scheme-interpreter
[INFO] tweaked toml for git repo https://github.com/janmarthedal/simple-scheme-interpreter written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/janmarthedal/simple-scheme-interpreter on toolchain nightly
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/janmarthedal/simple-scheme-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" "+nightly" "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" "+nightly" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 32c45d9f0b2984c2ab69a3090a65acca9664df20120181bb63155a957eb1035a
[INFO] running `Command { std: "docker" "start" "-a" "32c45d9f0b2984c2ab69a3090a65acca9664df20120181bb63155a957eb1035a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "32c45d9f0b2984c2ab69a3090a65acca9664df20120181bb63155a957eb1035a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32c45d9f0b2984c2ab69a3090a65acca9664df20120181bb63155a957eb1035a", kill_on_drop: false }`
[INFO] [stdout] 32c45d9f0b2984c2ab69a3090a65acca9664df20120181bb63155a957eb1035a
[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" "+nightly" "clippy" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3c50c4ca04221bcfb071f22774106c92fc6bdf9aeb589d50adca2f1c62675951
[INFO] running `Command { std: "docker" "start" "-a" "3c50c4ca04221bcfb071f22774106c92fc6bdf9aeb589d50adca2f1c62675951", kill_on_drop: false }`
[INFO] [stderr]     Checking simple-scheme-interpreter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: using `clone` on type `Number` which implements the `Copy` trait
[INFO] [stdout]   --> src/environment.rs:87:48
[INFO] [stdout]    |
[INFO] [stdout] 87 |             Expression::NumberLiteral(n) => Ok(n.clone()),
[INFO] [stdout]    |                                                ^^^^^^^^^ help: try dereferencing it: `*n`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stdout]    = note: `#[warn(clippy::clone_on_copy)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `clone` on type `Number` which implements the `Copy` trait
[INFO] [stdout]   --> src/environment.rs:87:48
[INFO] [stdout]    |
[INFO] [stdout] 87 |             Expression::NumberLiteral(n) => Ok(n.clone()),
[INFO] [stdout]    |                                                ^^^^^^^^^ help: try dereferencing it: `*n`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stdout]    = note: `#[warn(clippy::clone_on_copy)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]   --> src/eval.rs:17:28
[INFO] [stdout]    |
[INFO] [stdout] 17 |                         if !elem_iter.next().is_none() {
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `elem_iter.next().is_some()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout]    = note: `#[warn(clippy::nonminimal_bool)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]   --> src/eval.rs:17:28
[INFO] [stdout]    |
[INFO] [stdout] 17 |                         if !elem_iter.next().is_none() {
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `elem_iter.next().is_some()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout]    = note: `#[warn(clippy::nonminimal_bool)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "3c50c4ca04221bcfb071f22774106c92fc6bdf9aeb589d50adca2f1c62675951", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c50c4ca04221bcfb071f22774106c92fc6bdf9aeb589d50adca2f1c62675951", kill_on_drop: false }`
[INFO] [stdout] 3c50c4ca04221bcfb071f22774106c92fc6bdf9aeb589d50adca2f1c62675951