[INFO] cloning repository https://github.com/chenx6/make-a-lisp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/chenx6/make-a-lisp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchenx6%2Fmake-a-lisp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchenx6%2Fmake-a-lisp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d6f92bff29bdaf1a4536811c5779d9ee625d020e
[INFO] checking chenx6/make-a-lisp against master#9610dfe5a9a731ced1ea4923ecbd0c57fe367898 for beta-170-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchenx6%2Fmake-a-lisp" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/chenx6/make-a-lisp on toolchain 9610dfe5a9a731ced1ea4923ecbd0c57fe367898
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/chenx6/make-a-lisp
[INFO] finished tweaking git repo https://github.com/chenx6/make-a-lisp
[INFO] tweaked toml for git repo https://github.com/chenx6/make-a-lisp written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/chenx6/make-a-lisp 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" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3b4f0cbc79ac248023480fe35b59e0d2f9184cd5a2adc0cd69fcc8070b4e9ddb
[INFO] running `Command { std: "docker" "start" "-a" "3b4f0cbc79ac248023480fe35b59e0d2f9184cd5a2adc0cd69fcc8070b4e9ddb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3b4f0cbc79ac248023480fe35b59e0d2f9184cd5a2adc0cd69fcc8070b4e9ddb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b4f0cbc79ac248023480fe35b59e0d2f9184cd5a2adc0cd69fcc8070b4e9ddb", kill_on_drop: false }`
[INFO] [stdout] 3b4f0cbc79ac248023480fe35b59e0d2f9184cd5a2adc0cd69fcc8070b4e9ddb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 01ab2d6252405ed63d053d6e33a0230461f5c4794540bc8b9577b06e2fde92e2
[INFO] running `Command { std: "docker" "start" "-a" "01ab2d6252405ed63d053d6e33a0230461f5c4794540bc8b9577b06e2fde92e2", kill_on_drop: false }`
[INFO] [stderr]     Checking mal v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `READ` is never used
[INFO] [stdout]  --> src/step0_repl.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn READ() {}
[INFO] [stdout]   |    ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `EVAL` is never used
[INFO] [stdout]  --> src/step0_repl.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn EVAL() {}
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `PRINT` is never used
[INFO] [stdout]  --> src/step0_repl.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn PRINT() {}
[INFO] [stdout]   |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rep` is never used
[INFO] [stdout]  --> src/step0_repl.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn rep() {}
[INFO] [stdout]   |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `READ` is never used
[INFO] [stdout]  --> src/step0_repl.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn READ() {}
[INFO] [stdout]   |    ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `READ` should have a snake case name
[INFO] [stdout]  --> src/step0_repl.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn READ() {}
[INFO] [stdout]   |    ^^^^ help: convert the identifier to snake case: `read`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `EVAL` is never used
[INFO] [stdout]  --> src/step0_repl.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn EVAL() {}
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `EVAL` should have a snake case name
[INFO] [stdout]  --> src/step0_repl.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn EVAL() {}
[INFO] [stdout]   |    ^^^^ help: convert the identifier to snake case: `eval`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `PRINT` is never used
[INFO] [stdout]  --> src/step0_repl.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn PRINT() {}
[INFO] [stdout]   |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rep` is never used
[INFO] [stdout]  --> src/step0_repl.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn rep() {}
[INFO] [stdout]   |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `PRINT` should have a snake case name
[INFO] [stdout]  --> src/step0_repl.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn PRINT() {}
[INFO] [stdout]   |    ^^^^^ help: convert the identifier to snake case: `print`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `READ` should have a snake case name
[INFO] [stdout]  --> src/step0_repl.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn READ() {}
[INFO] [stdout]   |    ^^^^ help: convert the identifier to snake case: `read`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `EVAL` should have a snake case name
[INFO] [stdout]  --> src/step0_repl.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn EVAL() {}
[INFO] [stdout]   |    ^^^^ help: convert the identifier to snake case: `eval`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `PRINT` should have a snake case name
[INFO] [stdout]  --> src/step0_repl.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn PRINT() {}
[INFO] [stdout]   |    ^^^^^ help: convert the identifier to snake case: `print`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]  --> src/printer.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::Write;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]  --> src/printer.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::Write;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]  --> src/printer.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::Write;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]  --> src/printer.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::Write;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]  --> src/printer.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::Write;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate::env`
[INFO] [stdout]  --> src/types.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::env::Env;
[INFO] [stdout]   |            ^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            unresolved import
[INFO] [stdout]   |            help: a similar path exists: `std::env`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]  --> src/printer.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::Write;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]  --> src/printer.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::Write;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]  --> src/printer.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::Write;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mal` (bin "step2_eval" test) due to 2 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: function `int_operation` is never used
[INFO] [stdout]  --> src/core.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn int_operation(args: MalArgs, op: fn(&i32, &i32) -> MalType) -> MalRet {
[INFO] [stdout]   |        ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `add` is never used
[INFO] [stdout]   --> src/core.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub fn add(args: MalArgs) -> MalRet {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sub` is never used
[INFO] [stdout]   --> src/core.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn sub(args: MalArgs) -> MalRet {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mul` is never used
[INFO] [stdout]   --> src/core.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub fn mul(args: MalArgs) -> MalRet {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `div` is never used
[INFO] [stdout]   --> src/core.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn div(args: MalArgs) -> MalRet {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `equal` is never used
[INFO] [stdout]   --> src/core.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn equal(args: MalArgs) -> MalRet {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `less` is never used
[INFO] [stdout]   --> src/core.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub fn less(args: MalArgs) -> MalRet {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `le` is never used
[INFO] [stdout]   --> src/core.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub fn le(args: MalArgs) -> MalRet {
[INFO] [stdout]    |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `great` is never used
[INFO] [stdout]   --> src/core.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub fn great(args: MalArgs) -> MalRet {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `ge` is never used
[INFO] [stdout]   --> src/core.rs:51:8
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub fn ge(args: MalArgs) -> MalRet {
[INFO] [stdout]    |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `prn` is never used
[INFO] [stdout]   --> src/core.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub fn prn(args: MalArgs) -> MalRet {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `list` is never used
[INFO] [stdout]   --> src/core.rs:63:8
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub fn list(args: MalArgs) -> MalRet {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `list_q` is never used
[INFO] [stdout]   --> src/core.rs:67:8
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub fn list_q(args: MalArgs) -> MalRet {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `empty_q` is never used
[INFO] [stdout]   --> src/core.rs:79:8
[INFO] [stdout]    |
[INFO] [stdout] 79 | pub fn empty_q(args: MalArgs) -> MalRet {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `count_q` is never used
[INFO] [stdout]   --> src/core.rs:89:8
[INFO] [stdout]    |
[INFO] [stdout] 89 | pub fn count_q(args: MalArgs) -> MalRet {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_string` is never used
[INFO] [stdout]   --> src/core.rs:99:8
[INFO] [stdout]    |
[INFO] [stdout] 99 | pub fn read_string(args: MalArgs) -> MalRet {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `slurp` is never used
[INFO] [stdout]    --> src/core.rs:113:8
[INFO] [stdout]     |
[INFO] [stdout] 113 | pub fn slurp(args: MalArgs) -> MalRet {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `atom` is never used
[INFO] [stdout]    --> src/core.rs:136:8
[INFO] [stdout]     |
[INFO] [stdout] 136 | pub fn atom(args: MalArgs) -> MalRet {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `atom_q` is never used
[INFO] [stdout]    --> src/core.rs:143:8
[INFO] [stdout]     |
[INFO] [stdout] 143 | pub fn atom_q(args: MalArgs) -> MalRet {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `deref` is never used
[INFO] [stdout]    --> src/core.rs:153:8
[INFO] [stdout]     |
[INFO] [stdout] 153 | pub fn deref(args: MalArgs) -> MalRet {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `reset_b` is never used
[INFO] [stdout]    --> src/core.rs:163:8
[INFO] [stdout]     |
[INFO] [stdout] 163 | pub fn reset_b(args: MalArgs) -> MalRet {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cons` is never used
[INFO] [stdout]    --> src/core.rs:176:8
[INFO] [stdout]     |
[INFO] [stdout] 176 | pub fn cons(args: MalArgs) -> MalRet {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `concat` is never used
[INFO] [stdout]    --> src/core.rs:190:8
[INFO] [stdout]     |
[INFO] [stdout] 190 | pub fn concat(args: MalArgs) -> MalRet {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `nth` is never used
[INFO] [stdout]    --> src/core.rs:201:8
[INFO] [stdout]     |
[INFO] [stdout] 201 | pub fn nth(args: MalArgs) -> MalRet {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `first` is never used
[INFO] [stdout]    --> src/core.rs:214:8
[INFO] [stdout]     |
[INFO] [stdout] 214 | pub fn first(args: MalArgs) -> MalRet {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `data` is never read
[INFO] [stdout]   --> src/env.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct EnvStruct {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 10 |     data: RefCell<HashMap<String, MalType>>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `EnvStruct` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/env.rs:18:12
[INFO] [stdout]     |
[INFO] [stdout] 17  | impl Env {
[INFO] [stdout]     | -------- associated items in this implementation
[INFO] [stdout] 18  |     pub fn init() -> Env {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 49  |     pub fn new(outer: Option<Env>) -> Env {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 56  |     pub fn bind(outer: Option<Env>, binds: MalType, exprs: MalType) -> Env {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 66  |     fn find(&self, key: &MalType) -> Option<Env> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 82  |     pub fn get(&self, key: &MalType) -> Option<MalType> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 94  |     pub fn set(&mut self, key: MalType, value: MalType) -> Option<MalType> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 103 |     pub fn outer(&self) -> Option<Env> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Float`, `Vector`, `Hash`, `Func`, `MalFunc`, and `Atom` are never constructed
[INFO] [stdout]   --> src/types.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub enum MalType {
[INFO] [stdout]    |          ------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 12 |     Float(f64),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 16 |     Vector(Rc<Vec<MalType>>, Rc<MalType>),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 17 |     Hash(Rc<HashMap<String, MalType>>, Rc<MalType>),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 18 |     Func(fn(MalArgs) -> MalRet, Rc<MalType>),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 19 |     MalFunc {
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |     Atom(Rc<RefCell<MalType>>),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MalType` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `ErrValue`, `ErrorMsg`, and `OsErr` are never constructed
[INFO] [stdout]   --> src/types.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub enum MalErr {
[INFO] [stdout]    |          ------ variants in this enum
[INFO] [stdout] 31 |     ErrValue(MalType),
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 32 |     ErrorMsg(String),
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 33 |     OsErr(String),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MalErr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `error_msg` is never used
[INFO] [stdout]   --> src/types.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub fn error_msg(s: &str) -> MalErr {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `error_string` is never used
[INFO] [stdout]   --> src/types.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub fn error_string(s: String) -> MalErr {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `atom` and `func` are never used
[INFO] [stdout]   --> src/types.rs:73:12
[INFO] [stdout]    |
[INFO] [stdout] 68 | impl MalType {
[INFO] [stdout]    | ------------ associated functions in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 73 |     pub fn atom(v: MalType) -> MalType {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 77 |     pub fn func(f: fn(args: MalArgs) -> MalRet) -> MalType {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `READ` should have a snake case name
[INFO] [stdout]  --> src/step1_read_print.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn READ() -> String {
[INFO] [stdout]   |    ^^^^ help: convert the identifier to snake case: `read`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `EVAL` should have a snake case name
[INFO] [stdout]   --> src/step1_read_print.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn EVAL(input: String) -> Option<types::MalType> {
[INFO] [stdout]    |    ^^^^ help: convert the identifier to snake case: `eval`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `PRINT` should have a snake case name
[INFO] [stdout]   --> src/step1_read_print.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn PRINT(val: &types::MalType) {
[INFO] [stdout]    |    ^^^^^ help: convert the identifier to snake case: `print`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `nth` is never used
[INFO] [stdout]    --> src/core.rs:201:8
[INFO] [stdout]     |
[INFO] [stdout] 201 | pub fn nth(args: MalArgs) -> MalRet {
[INFO] [stdout]     |        ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `first` is never used
[INFO] [stdout]    --> src/core.rs:214:8
[INFO] [stdout]     |
[INFO] [stdout] 214 | pub fn first(args: MalArgs) -> MalRet {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `outer` is never used
[INFO] [stdout]    --> src/env.rs:103:12
[INFO] [stdout]     |
[INFO] [stdout] 17  | impl Env {
[INFO] [stdout]     | -------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 103 |     pub fn outer(&self) -> Option<Env> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Float`, `Vector`, and `Hash` are never constructed
[INFO] [stdout]   --> src/types.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub enum MalType {
[INFO] [stdout]    |          ------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 12 |     Float(f64),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 16 |     Vector(Rc<Vec<MalType>>, Rc<MalType>),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 17 |     Hash(Rc<HashMap<String, MalType>>, Rc<MalType>),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MalType` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `OsErr` is never constructed
[INFO] [stdout]   --> src/types.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub enum MalErr {
[INFO] [stdout]    |          ------ variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 33 |     OsErr(String),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MalErr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `READ` should have a snake case name
[INFO] [stdout]   --> src/step5_tco.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn READ() -> Option<MalType> {
[INFO] [stdout]    |    ^^^^ help: convert the identifier to snake case: `read`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `EVAL` should have a snake case name
[INFO] [stdout]   --> src/step5_tco.rs:29:4
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn EVAL(val: &MalType, env: &mut env::Env) -> Option<MalType> {
[INFO] [stdout]    |    ^^^^ help: convert the identifier to snake case: `eval`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `PRINT` should have a snake case name
[INFO] [stdout]    --> src/step5_tco.rs:177:4
[INFO] [stdout]     |
[INFO] [stdout] 177 | fn PRINT(val: &MalType) {
[INFO] [stdout]     |    ^^^^^ help: convert the identifier to snake case: `print`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sub` is never used
[INFO] [stdout]   --> src/core.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn sub(args: MalArgs) -> MalRet {
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mul` is never used
[INFO] [stdout]   --> src/core.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub fn mul(args: MalArgs) -> MalRet {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `div` is never used
[INFO] [stdout]   --> src/core.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn div(args: MalArgs) -> MalRet {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `equal` is never used
[INFO] [stdout]   --> src/core.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn equal(args: MalArgs) -> MalRet {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `less` is never used
[INFO] [stdout]   --> src/core.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub fn less(args: MalArgs) -> MalRet {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `le` is never used
[INFO] [stdout]   --> src/core.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub fn le(args: MalArgs) -> MalRet {
[INFO] [stdout]    |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `great` is never used
[INFO] [stdout]   --> src/core.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub fn great(args: MalArgs) -> MalRet {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `ge` is never used
[INFO] [stdout]   --> src/core.rs:51:8
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub fn ge(args: MalArgs) -> MalRet {
[INFO] [stdout]    |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `prn` is never used
[INFO] [stdout]   --> src/core.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub fn prn(args: MalArgs) -> MalRet {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `list` is never used
[INFO] [stdout]   --> src/core.rs:63:8
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub fn list(args: MalArgs) -> MalRet {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `list_q` is never used
[INFO] [stdout]   --> src/core.rs:67:8
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub fn list_q(args: MalArgs) -> MalRet {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `empty_q` is never used
[INFO] [stdout]   --> src/core.rs:79:8
[INFO] [stdout]    |
[INFO] [stdout] 79 | pub fn empty_q(args: MalArgs) -> MalRet {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `count_q` is never used
[INFO] [stdout]   --> src/core.rs:89:8
[INFO] [stdout]    |
[INFO] [stdout] 89 | pub fn count_q(args: MalArgs) -> MalRet {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_string` is never used
[INFO] [stdout]   --> src/core.rs:99:8
[INFO] [stdout]    |
[INFO] [stdout] 99 | pub fn read_string(args: MalArgs) -> MalRet {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `slurp` is never used
[INFO] [stdout]    --> src/core.rs:113:8
[INFO] [stdout]     |
[INFO] [stdout] 113 | pub fn slurp(args: MalArgs) -> MalRet {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/step1_read_print.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |         std::io::stdout().flush();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 35 |         let _ = std::io::stdout().flush();
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `atom` is never used
[INFO] [stdout]    --> src/core.rs:136:8
[INFO] [stdout]     |
[INFO] [stdout] 136 | pub fn atom(args: MalArgs) -> MalRet {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `atom_q` is never used
[INFO] [stdout]    --> src/core.rs:143:8
[INFO] [stdout]     |
[INFO] [stdout] 143 | pub fn atom_q(args: MalArgs) -> MalRet {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `deref` is never used
[INFO] [stdout]    --> src/core.rs:153:8
[INFO] [stdout]     |
[INFO] [stdout] 153 | pub fn deref(args: MalArgs) -> MalRet {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `reset_b` is never used
[INFO] [stdout]    --> src/core.rs:163:8
[INFO] [stdout]     |
[INFO] [stdout] 163 | pub fn reset_b(args: MalArgs) -> MalRet {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cons` is never used
[INFO] [stdout]    --> src/core.rs:176:8
[INFO] [stdout]     |
[INFO] [stdout] 176 | pub fn cons(args: MalArgs) -> MalRet {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `concat` is never used
[INFO] [stdout]    --> src/core.rs:190:8
[INFO] [stdout]     |
[INFO] [stdout] 190 | pub fn concat(args: MalArgs) -> MalRet {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `nth` is never used
[INFO] [stdout]    --> src/core.rs:201:8
[INFO] [stdout]     |
[INFO] [stdout] 201 | pub fn nth(args: MalArgs) -> MalRet {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `first` is never used
[INFO] [stdout]    --> src/core.rs:214:8
[INFO] [stdout]     |
[INFO] [stdout] 214 | pub fn first(args: MalArgs) -> MalRet {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `init`, `bind`, and `outer` are never used
[INFO] [stdout]    --> src/env.rs:18:12
[INFO] [stdout]     |
[INFO] [stdout] 17  | impl Env {
[INFO] [stdout]     | -------- associated items in this implementation
[INFO] [stdout] 18  |     pub fn init() -> Env {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 56  |     pub fn bind(outer: Option<Env>, binds: MalType, exprs: MalType) -> Env {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 103 |     pub fn outer(&self) -> Option<Env> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Float`, `Vector`, `Hash`, `MalFunc`, and `Atom` are never constructed
[INFO] [stdout]   --> src/types.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub enum MalType {
[INFO] [stdout]    |          ------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 12 |     Float(f64),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 16 |     Vector(Rc<Vec<MalType>>, Rc<MalType>),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 17 |     Hash(Rc<HashMap<String, MalType>>, Rc<MalType>),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 18 |     Func(fn(MalArgs) -> MalRet, Rc<MalType>),
[INFO] [stdout] 19 |     MalFunc {
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |     Atom(Rc<RefCell<MalType>>),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MalType` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `ErrValue` and `OsErr` are never constructed
[INFO] [stdout]   --> src/types.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub enum MalErr {
[INFO] [stdout]    |          ------ variants in this enum
[INFO] [stdout] 31 |     ErrValue(MalType),
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 32 |     ErrorMsg(String),
[INFO] [stdout] 33 |     OsErr(String),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MalErr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `error_string` is never used
[INFO] [stdout]   --> src/types.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub fn error_string(s: String) -> MalErr {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `atom` and `func` are never used
[INFO] [stdout]   --> src/types.rs:73:12
[INFO] [stdout]    |
[INFO] [stdout] 68 | impl MalType {
[INFO] [stdout]    | ------------ associated functions in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 73 |     pub fn atom(v: MalType) -> MalType {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 77 |     pub fn func(f: fn(args: MalArgs) -> MalRet) -> MalType {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `READ` should have a snake case name
[INFO] [stdout]   --> src/step3_env.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn READ() -> Option<MalType> {
[INFO] [stdout]    |    ^^^^ help: convert the identifier to snake case: `read`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `EVAL` should have a snake case name
[INFO] [stdout]   --> src/step3_env.rs:32:4
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn EVAL(val: &MalType, env: &mut env::Env) -> Option<MalType> {
[INFO] [stdout]    |    ^^^^ help: convert the identifier to snake case: `eval`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `PRINT` should have a snake case name
[INFO] [stdout]   --> src/step3_env.rs:88:4
[INFO] [stdout]    |
[INFO] [stdout] 88 | fn PRINT(val: &MalType) {
[INFO] [stdout]    |    ^^^^^ help: convert the identifier to snake case: `print`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `nth` is never used
[INFO] [stdout]    --> src/core.rs:201:8
[INFO] [stdout]     |
[INFO] [stdout] 201 | pub fn nth(args: MalArgs) -> MalRet {
[INFO] [stdout]     |        ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `first` is never used
[INFO] [stdout]    --> src/core.rs:214:8
[INFO] [stdout]     |
[INFO] [stdout] 214 | pub fn first(args: MalArgs) -> MalRet {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `READ` should have a snake case name
[INFO] [stdout]   --> src/step7_quote.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn READ() -> Option<MalType> {
[INFO] [stdout]    |    ^^^^ help: convert the identifier to snake case: `read`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `EVAL` should have a snake case name
[INFO] [stdout]    --> src/step7_quote.rs:100:8
[INFO] [stdout]     |
[INFO] [stdout] 100 | pub fn EVAL(val: &MalType, env: &mut env::Env) -> Result<MalType, MalErr> {
[INFO] [stdout]     |        ^^^^ help: convert the identifier to snake case: `eval`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `PRINT` should have a snake case name
[INFO] [stdout]    --> src/step7_quote.rs:255:4
[INFO] [stdout]     |
[INFO] [stdout] 255 | fn PRINT(val: &MalType) {
[INFO] [stdout]     |    ^^^^^ help: convert the identifier to snake case: `print`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 32 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `nth` is never used
[INFO] [stdout]    --> src/core.rs:201:8
[INFO] [stdout]     |
[INFO] [stdout] 201 | pub fn nth(args: MalArgs) -> MalRet {
[INFO] [stdout]     |        ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `first` is never used
[INFO] [stdout]    --> src/core.rs:214:8
[INFO] [stdout]     |
[INFO] [stdout] 214 | pub fn first(args: MalArgs) -> MalRet {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `READ` should have a snake case name
[INFO] [stdout]   --> src/step8_macros.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn READ() -> Option<MalType> {
[INFO] [stdout]    |    ^^^^ help: convert the identifier to snake case: `read`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `EVAL` should have a snake case name
[INFO] [stdout]    --> src/step8_macros.rs:130:4
[INFO] [stdout]     |
[INFO] [stdout] 130 | fn EVAL(val: &MalType, env: &mut env::Env) -> Result<MalType, MalErr> {
[INFO] [stdout]     |    ^^^^ help: convert the identifier to snake case: `eval`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `PRINT` should have a snake case name
[INFO] [stdout]    --> src/step8_macros.rs:333:4
[INFO] [stdout]     |
[INFO] [stdout] 333 | fn PRINT(val: &MalType) {
[INFO] [stdout]     |    ^^^^^ help: convert the identifier to snake case: `print`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 37 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sub` is never used
[INFO] [stdout]   --> src/core.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn sub(args: MalArgs) -> MalRet {
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mul` is never used
[INFO] [stdout]   --> src/core.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub fn mul(args: MalArgs) -> MalRet {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `div` is never used
[INFO] [stdout]   --> src/core.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn div(args: MalArgs) -> MalRet {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `equal` is never used
[INFO] [stdout]   --> src/core.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn equal(args: MalArgs) -> MalRet {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `less` is never used
[INFO] [stdout]   --> src/core.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub fn less(args: MalArgs) -> MalRet {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `le` is never used
[INFO] [stdout]   --> src/core.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub fn le(args: MalArgs) -> MalRet {
[INFO] [stdout]    |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `great` is never used
[INFO] [stdout]   --> src/core.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub fn great(args: MalArgs) -> MalRet {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `ge` is never used
[INFO] [stdout]   --> src/core.rs:51:8
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub fn ge(args: MalArgs) -> MalRet {
[INFO] [stdout]    |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `prn` is never used
[INFO] [stdout]   --> src/core.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub fn prn(args: MalArgs) -> MalRet {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `list` is never used
[INFO] [stdout]   --> src/core.rs:63:8
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub fn list(args: MalArgs) -> MalRet {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `list_q` is never used
[INFO] [stdout]   --> src/core.rs:67:8
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub fn list_q(args: MalArgs) -> MalRet {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `empty_q` is never used
[INFO] [stdout]   --> src/core.rs:79:8
[INFO] [stdout]    |
[INFO] [stdout] 79 | pub fn empty_q(args: MalArgs) -> MalRet {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `count_q` is never used
[INFO] [stdout]   --> src/core.rs:89:8
[INFO] [stdout]    |
[INFO] [stdout] 89 | pub fn count_q(args: MalArgs) -> MalRet {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_string` is never used
[INFO] [stdout]   --> src/core.rs:99:8
[INFO] [stdout]    |
[INFO] [stdout] 99 | pub fn read_string(args: MalArgs) -> MalRet {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `slurp` is never used
[INFO] [stdout]    --> src/core.rs:113:8
[INFO] [stdout]     |
[INFO] [stdout] 113 | pub fn slurp(args: MalArgs) -> MalRet {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `atom` is never used
[INFO] [stdout]    --> src/core.rs:136:8
[INFO] [stdout]     |
[INFO] [stdout] 136 | pub fn atom(args: MalArgs) -> MalRet {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `atom_q` is never used
[INFO] [stdout]    --> src/core.rs:143:8
[INFO] [stdout]     |
[INFO] [stdout] 143 | pub fn atom_q(args: MalArgs) -> MalRet {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `nth` is never used
[INFO] [stdout]    --> src/core.rs:201:8
[INFO] [stdout]     |
[INFO] [stdout] 201 | pub fn nth(args: MalArgs) -> MalRet {
[INFO] [stdout]     |        ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `deref` is never used
[INFO] [stdout]    --> src/core.rs:153:8
[INFO] [stdout]     |
[INFO] [stdout] 153 | pub fn deref(args: MalArgs) -> MalRet {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `first` is never used
[INFO] [stdout]    --> src/core.rs:214:8
[INFO] [stdout]     |
[INFO] [stdout] 214 | pub fn first(args: MalArgs) -> MalRet {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `reset_b` is never used
[INFO] [stdout]    --> src/core.rs:163:8
[INFO] [stdout]     |
[INFO] [stdout] 163 | pub fn reset_b(args: MalArgs) -> MalRet {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cons` is never used
[INFO] [stdout]    --> src/core.rs:176:8
[INFO] [stdout]     |
[INFO] [stdout] 176 | pub fn cons(args: MalArgs) -> MalRet {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `outer` is never used
[INFO] [stdout]    --> src/env.rs:103:12
[INFO] [stdout]     |
[INFO] [stdout] 17  | impl Env {
[INFO] [stdout]     | -------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 103 |     pub fn outer(&self) -> Option<Env> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `concat` is never used
[INFO] [stdout]    --> src/core.rs:190:8
[INFO] [stdout]     |
[INFO] [stdout] 190 | pub fn concat(args: MalArgs) -> MalRet {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `nth` is never used
[INFO] [stdout]    --> src/core.rs:201:8
[INFO] [stdout]     |
[INFO] [stdout] 201 | pub fn nth(args: MalArgs) -> MalRet {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `first` is never used
[INFO] [stdout]    --> src/core.rs:214:8
[INFO] [stdout]     |
[INFO] [stdout] 214 | pub fn first(args: MalArgs) -> MalRet {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Float`, `Vector`, and `Hash` are never constructed
[INFO] [stdout]   --> src/types.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub enum MalType {
[INFO] [stdout]    |          ------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 12 |     Float(f64),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 16 |     Vector(Rc<Vec<MalType>>, Rc<MalType>),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 17 |     Hash(Rc<HashMap<String, MalType>>, Rc<MalType>),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MalType` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `init`, `bind`, and `outer` are never used
[INFO] [stdout]    --> src/env.rs:18:12
[INFO] [stdout]     |
[INFO] [stdout] 17  | impl Env {
[INFO] [stdout]     | -------- associated items in this implementation
[INFO] [stdout] 18  |     pub fn init() -> Env {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 56  |     pub fn bind(outer: Option<Env>, binds: MalType, exprs: MalType) -> Env {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 103 |     pub fn outer(&self) -> Option<Env> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `OsErr` is never constructed
[INFO] [stdout]   --> src/types.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub enum MalErr {
[INFO] [stdout]    |          ------ variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 33 |     OsErr(String),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MalErr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Float`, `Vector`, `Hash`, `MalFunc`, and `Atom` are never constructed
[INFO] [stdout]   --> src/types.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub enum MalType {
[INFO] [stdout]    |          ------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 12 |     Float(f64),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 16 |     Vector(Rc<Vec<MalType>>, Rc<MalType>),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 17 |     Hash(Rc<HashMap<String, MalType>>, Rc<MalType>),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 18 |     Func(fn(MalArgs) -> MalRet, Rc<MalType>),
[INFO] [stdout] 19 |     MalFunc {
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |     Atom(Rc<RefCell<MalType>>),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MalType` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `ErrValue` and `OsErr` are never constructed
[INFO] [stdout]   --> src/types.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub enum MalErr {
[INFO] [stdout]    |          ------ variants in this enum
[INFO] [stdout] 31 |     ErrValue(MalType),
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 32 |     ErrorMsg(String),
[INFO] [stdout] 33 |     OsErr(String),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MalErr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `error_string` is never used
[INFO] [stdout]   --> src/types.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub fn error_string(s: String) -> MalErr {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `atom` and `func` are never used
[INFO] [stdout]   --> src/types.rs:73:12
[INFO] [stdout]    |
[INFO] [stdout] 68 | impl MalType {
[INFO] [stdout]    | ------------ associated functions in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 73 |     pub fn atom(v: MalType) -> MalType {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 77 |     pub fn func(f: fn(args: MalArgs) -> MalRet) -> MalType {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `READ` should have a snake case name
[INFO] [stdout]   --> src/step4_if_fn_do.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn READ() -> Option<MalType> {
[INFO] [stdout]    |    ^^^^ help: convert the identifier to snake case: `read`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `READ` should have a snake case name
[INFO] [stdout]   --> src/step3_env.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn READ() -> Option<MalType> {
[INFO] [stdout]    |    ^^^^ help: convert the identifier to snake case: `read`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `EVAL` should have a snake case name
[INFO] [stdout]   --> src/step3_env.rs:32:4
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn EVAL(val: &MalType, env: &mut env::Env) -> Option<MalType> {
[INFO] [stdout]    |    ^^^^ help: convert the identifier to snake case: `eval`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `PRINT` should have a snake case name
[INFO] [stdout]   --> src/step3_env.rs:88:4
[INFO] [stdout]    |
[INFO] [stdout] 88 | fn PRINT(val: &MalType) {
[INFO] [stdout]    |    ^^^^^ help: convert the identifier to snake case: `print`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.borrow()` on a double reference, which returns `&MalType` instead of borrowing the inner type
[INFO] [stdout]   --> src/step4_if_fn_do.rs:21:48
[INFO] [stdout]    |
[INFO] [stdout] 21 |         Some(MalType::List(v, _)) => match v[0].borrow() {
[INFO] [stdout]    |                                                ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `EVAL` should have a snake case name
[INFO] [stdout]   --> src/step4_if_fn_do.rs:32:4
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn EVAL(val: &MalType, env: &mut env::Env) -> Option<MalType> {
[INFO] [stdout]    |    ^^^^ help: convert the identifier to snake case: `eval`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `PRINT` should have a snake case name
[INFO] [stdout]    --> src/step4_if_fn_do.rs:125:4
[INFO] [stdout]     |
[INFO] [stdout] 125 | fn PRINT(val: &MalType) {
[INFO] [stdout]     |    ^^^^^ help: convert the identifier to snake case: `print`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 32 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "01ab2d6252405ed63d053d6e33a0230461f5c4794540bc8b9577b06e2fde92e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01ab2d6252405ed63d053d6e33a0230461f5c4794540bc8b9577b06e2fde92e2", kill_on_drop: false }`
[INFO] [stdout] 01ab2d6252405ed63d053d6e33a0230461f5c4794540bc8b9577b06e2fde92e2
