[INFO] cloning repository https://github.com/aaronjeline/RLisp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aaronjeline/RLisp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faaronjeline%2FRLisp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faaronjeline%2FRLisp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6466e9255168abc712436d7b37d2ca705b7507b1
[INFO] checking aaronjeline/RLisp/6466e9255168abc712436d7b37d2ca705b7507b1 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faaronjeline%2FRLisp" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aaronjeline/RLisp on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/aaronjeline/RLisp
[INFO] finished tweaking git repo https://github.com/aaronjeline/RLisp
[INFO] tweaked toml for git repo https://github.com/aaronjeline/RLisp written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/aaronjeline/RLisp 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded memchr v2.1.2
[INFO] [stderr]   Downloaded nom v4.1.1
[INFO] [stderr]   Downloaded libc v0.2.47
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 374fb469a4344de632de0743ea4bfdada7769b38dd6cf4a2a9e97db221ef533b
[INFO] running `Command { std: "docker" "start" "-a" "374fb469a4344de632de0743ea4bfdada7769b38dd6cf4a2a9e97db221ef533b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "374fb469a4344de632de0743ea4bfdada7769b38dd6cf4a2a9e97db221ef533b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "374fb469a4344de632de0743ea4bfdada7769b38dd6cf4a2a9e97db221ef533b", kill_on_drop: false }`
[INFO] [stdout] 374fb469a4344de632de0743ea4bfdada7769b38dd6cf4a2a9e97db221ef533b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 06add7e513ba35f6331558fadfa6a41926ee4fd8650cad9d958c0e66c5c5622b
[INFO] running `Command { std: "docker" "start" "-a" "06add7e513ba35f6331558fadfa6a41926ee4fd8650cad9d958c0e66c5c5622b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.47
[INFO] [stderr]    Compiling memchr v2.1.2
[INFO] [stderr]     Checking cfg-if v0.1.6
[INFO] [stderr]     Checking nom v4.1.1
[INFO] [stderr]     Checking rlisp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `list`
[INFO] [stdout]   --> src/evals.rs:44:13
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn eval_env(list: LinkedList<RValue>, env: &mut Env) -> FResult {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_list`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `list`
[INFO] [stdout]   --> src/evals.rs:44:13
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn eval_env(list: LinkedList<RValue>, env: &mut Env) -> FResult {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_list`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.deref()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/builtins.rs:208:63
[INFO] [stdout]     |
[INFO] [stdout] 208 |         Value::List(lst) => Ok(cons(first.deref().clone(), lst.deref().clone())),
[INFO] [stdout]     |                                                               ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `LinkedList<Box<rlisp::Value>>` does not implement `Deref`, so calling `deref` on `&LinkedList<Box<rlisp::Value>>` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 208 -         Value::List(lst) => Ok(cons(first.deref().clone(), lst.deref().clone())),
[INFO] [stdout] 208 +         Value::List(lst) => Ok(cons(first.deref().clone(), lst.clone())),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.deref()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/builtins.rs:208:63
[INFO] [stdout]     |
[INFO] [stdout] 208 |         Value::List(lst) => Ok(cons(first.deref().clone(), lst.deref().clone())),
[INFO] [stdout]     |                                                               ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `LinkedList<Box<rlisp::Value>>` does not implement `Deref`, so calling `deref` on `&LinkedList<Box<rlisp::Value>>` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 208 -         Value::List(lst) => Ok(cons(first.deref().clone(), lst.deref().clone())),
[INFO] [stdout] 208 +         Value::List(lst) => Ok(cons(first.deref().clone(), lst.clone())),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.32s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v4.1.1
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 7`
[INFO] running `Command { std: "docker" "inspect" "06add7e513ba35f6331558fadfa6a41926ee4fd8650cad9d958c0e66c5c5622b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06add7e513ba35f6331558fadfa6a41926ee4fd8650cad9d958c0e66c5c5622b", kill_on_drop: false }`
[INFO] [stdout] 06add7e513ba35f6331558fadfa6a41926ee4fd8650cad9d958c0e66c5c5622b