[INFO] cloning repository https://github.com/dsekercioglu/doodlang
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[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdsekercioglu%2Fdoodlang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 716209877ec2e4f70bfe45443068b71dc85f4d89
[INFO] checking dsekercioglu/doodlang against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
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[INFO] [stderr] Cloning into '/workspace/builds/worker-93/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dsekercioglu/doodlang on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dsekercioglu/doodlang
[INFO] finished tweaking git repo https://github.com/dsekercioglu/doodlang
[INFO] tweaked toml for git repo https://github.com/dsekercioglu/doodlang written to /workspace/builds/worker-93/source/Cargo.toml
[INFO] crate git repo https://github.com/dsekercioglu/doodlang already has a lockfile, it will not be regenerated
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[INFO] [stderr]     Blocking waiting for file lock on package cache
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[INFO] [stdout] 6786cb8a063d7a5314ff418033bfe5aaf257ce63935bddbd147aed6dcac8f5dc
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[INFO] running `Command { std: "docker" "inspect" "6786cb8a063d7a5314ff418033bfe5aaf257ce63935bddbd147aed6dcac8f5dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6786cb8a063d7a5314ff418033bfe5aaf257ce63935bddbd147aed6dcac8f5dc", kill_on_drop: false }`
[INFO] [stdout] 6786cb8a063d7a5314ff418033bfe5aaf257ce63935bddbd147aed6dcac8f5dc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 22767b5d77d5aec13f6d8d5ca02d72cfef1ddedd3c80545366c18cc2cf617630
[INFO] running `Command { std: "docker" "start" "-a" "22767b5d77d5aec13f6d8d5ca02d72cfef1ddedd3c80545366c18cc2cf617630", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking ppv-lite86 v0.2.9
[INFO] [stderr]     Checking text_io v0.1.8
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking doodlang v0.1.0 (/tmp/fixit)
[INFO] [stderr]    Migrating src/main.rs from 2018 edition to 2021
[INFO] [stderr]        Fixed src/doodlang/parser.rs (6 fixes)
[INFO] [stderr]        Fixed src/eq_solver/approx.rs (1 fix)
[INFO] [stderr]        Fixed src/eq_solver/function.rs (1 fix)
[INFO] [stderr]        Fixed src/eq_solver/matrix.rs (2 fixes)
[INFO] [stderr]        Fixed src/main.rs (3 fixes)
[INFO] [stderr]        Fixed src/doodlang/interpreter.rs (3 fixes)
[INFO] [stdout] warning: field is never read: `degree`
[INFO] [stdout]  --> src/eq_solver/approx.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     degree: usize,
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/eq_solver/approx.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn new(degree: usize) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `approx1d`
[INFO] [stdout]   --> src/eq_solver/approx.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn approx1d(&mut self, function_manager: &mut Box<FunctionManager>, function: &mut Box<dyn Function>, parameter: &str, range: (f6...
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `range`
[INFO] [stdout]   --> src/eq_solver/approx.rs:95:5
[INFO] [stdout]    |
[INFO] [stdout] 95 |     range: [f64; 2],
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `regress_range`
[INFO] [stdout]   --> src/eq_solver/approx.rs:96:5
[INFO] [stdout]    |
[INFO] [stdout] 96 |     regress_range: f64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `attempt_num`
[INFO] [stdout]   --> src/eq_solver/approx.rs:97:5
[INFO] [stdout]    |
[INFO] [stdout] 97 |     attempt_num: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `iter`
[INFO] [stdout]   --> src/eq_solver/approx.rs:98:5
[INFO] [stdout]    |
[INFO] [stdout] 98 |     iter: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `margin`
[INFO] [stdout]   --> src/eq_solver/approx.rs:99:5
[INFO] [stdout]    |
[INFO] [stdout] 99 |     margin: f64,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `poly`
[INFO] [stdout]    --> src/eq_solver/approx.rs:100:5
[INFO] [stdout]     |
[INFO] [stdout] 100 |     poly: PolyApprox,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `solve_for_param`
[INFO] [stdout]    --> src/eq_solver/approx.rs:117:12
[INFO] [stdout]     |
[INFO] [stdout] 117 |     pub fn solve_for_param(&mut self, func: &mut Box<dyn Function>, func_manager: &mut Box<FunctionManager>, param: &str) -> f64 {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `quad_solver`
[INFO] [stdout]   --> src/doodlang/interpreter.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     quad_solver: QuadFind,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Parser`
[INFO] [stdout]  --> src/doodlang/parser.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct Parser;
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `generate_tree`
[INFO] [stdout]    --> src/doodlang/parser.rs:212:8
[INFO] [stdout]     |
[INFO] [stdout] 212 | pub fn generate_tree(formula: &str) -> Node<[usize; 2]> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `stuff`
[INFO] [stdout]   --> src/main.rs:38:4
[INFO] [stdout]    |
[INFO] [stdout] 38 | fn stuff(range: usize) -> [usize; 2] {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `degree`
[INFO] [stdout]  --> src/eq_solver/approx.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     degree: usize,
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/eq_solver/approx.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn new(degree: usize) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `approx1d`
[INFO] [stdout]   --> src/eq_solver/approx.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn approx1d(&mut self, function_manager: &mut Box<FunctionManager>, function: &mut Box<dyn Function>, parameter: &str, range: (f6...
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `range`
[INFO] [stdout]   --> src/eq_solver/approx.rs:95:5
[INFO] [stdout]    |
[INFO] [stdout] 95 |     range: [f64; 2],
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `regress_range`
[INFO] [stdout]   --> src/eq_solver/approx.rs:96:5
[INFO] [stdout]    |
[INFO] [stdout] 96 |     regress_range: f64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `attempt_num`
[INFO] [stdout]   --> src/eq_solver/approx.rs:97:5
[INFO] [stdout]    |
[INFO] [stdout] 97 |     attempt_num: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `iter`
[INFO] [stdout]   --> src/eq_solver/approx.rs:98:5
[INFO] [stdout]    |
[INFO] [stdout] 98 |     iter: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `margin`
[INFO] [stdout]   --> src/eq_solver/approx.rs:99:5
[INFO] [stdout]    |
[INFO] [stdout] 99 |     margin: f64,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `poly`
[INFO] [stdout]    --> src/eq_solver/approx.rs:100:5
[INFO] [stdout]     |
[INFO] [stdout] 100 |     poly: PolyApprox,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `solve_for_param`
[INFO] [stdout]    --> src/eq_solver/approx.rs:117:12
[INFO] [stdout]     |
[INFO] [stdout] 117 |     pub fn solve_for_param(&mut self, func: &mut Box<dyn Function>, func_manager: &mut Box<FunctionManager>, param: &str) -> f64 {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `quad_solver`
[INFO] [stdout]   --> src/doodlang/interpreter.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     quad_solver: QuadFind,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Parser`
[INFO] [stdout]  --> src/doodlang/parser.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct Parser;
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `generate_tree`
[INFO] [stdout]    --> src/doodlang/parser.rs:212:8
[INFO] [stdout]     |
[INFO] [stdout] 212 | pub fn generate_tree(formula: &str) -> Node<[usize; 2]> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `stuff`
[INFO] [stdout]   --> src/main.rs:38:4
[INFO] [stdout]    |
[INFO] [stdout] 38 | fn stuff(range: usize) -> [usize; 2] {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.80s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking doodlang v0.1.0 (/tmp/fixit)
[INFO] [stdout] warning: field is never read: `degree`
[INFO] [stdout]  --> src/eq_solver/approx.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     degree: usize,
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/eq_solver/approx.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn new(degree: usize) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `approx1d`
[INFO] [stdout]   --> src/eq_solver/approx.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn approx1d(&mut self, function_manager: &mut Box<FunctionManager>, function: &mut Box<dyn Function>, parameter: &str, range: (f6...
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `range`
[INFO] [stdout]   --> src/eq_solver/approx.rs:95:5
[INFO] [stdout]    |
[INFO] [stdout] 95 |     range: [f64; 2],
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `regress_range`
[INFO] [stdout]   --> src/eq_solver/approx.rs:96:5
[INFO] [stdout]    |
[INFO] [stdout] 96 |     regress_range: f64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `attempt_num`
[INFO] [stdout]   --> src/eq_solver/approx.rs:97:5
[INFO] [stdout]    |
[INFO] [stdout] 97 |     attempt_num: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `iter`
[INFO] [stdout]   --> src/eq_solver/approx.rs:98:5
[INFO] [stdout]    |
[INFO] [stdout] 98 |     iter: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `margin`
[INFO] [stdout]   --> src/eq_solver/approx.rs:99:5
[INFO] [stdout]    |
[INFO] [stdout] 99 |     margin: f64,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `poly`
[INFO] [stdout]    --> src/eq_solver/approx.rs:100:5
[INFO] [stdout]     |
[INFO] [stdout] 100 |     poly: PolyApprox,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `solve_for_param`
[INFO] [stdout]    --> src/eq_solver/approx.rs:117:12
[INFO] [stdout]     |
[INFO] [stdout] 117 |     pub fn solve_for_param(&mut self, func: &mut Box<dyn Function>, func_manager: &mut Box<FunctionManager>, param: &str) -> f64 {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `quad_solver`
[INFO] [stdout]   --> src/doodlang/interpreter.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     quad_solver: QuadFind,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Parser`
[INFO] [stdout]  --> src/doodlang/parser.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct Parser;
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `generate_tree`
[INFO] [stdout]    --> src/doodlang/parser.rs:212:8
[INFO] [stdout]     |
[INFO] [stdout] 212 | pub fn generate_tree(formula: &str) -> Node<[usize; 2]> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `stuff`
[INFO] [stdout]   --> src/main.rs:38:4
[INFO] [stdout]    |
[INFO] [stdout] 38 | fn stuff(range: usize) -> [usize; 2] {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `degree`
[INFO] [stdout]  --> src/eq_solver/approx.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     degree: usize,
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/eq_solver/approx.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn new(degree: usize) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `approx1d`
[INFO] [stdout]   --> src/eq_solver/approx.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn approx1d(&mut self, function_manager: &mut Box<FunctionManager>, function: &mut Box<dyn Function>, parameter: &str, range: (f6...
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `range`
[INFO] [stdout]   --> src/eq_solver/approx.rs:95:5
[INFO] [stdout]    |
[INFO] [stdout] 95 |     range: [f64; 2],
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `regress_range`
[INFO] [stdout]   --> src/eq_solver/approx.rs:96:5
[INFO] [stdout]    |
[INFO] [stdout] 96 |     regress_range: f64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `attempt_num`
[INFO] [stdout]   --> src/eq_solver/approx.rs:97:5
[INFO] [stdout]    |
[INFO] [stdout] 97 |     attempt_num: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `iter`
[INFO] [stdout]   --> src/eq_solver/approx.rs:98:5
[INFO] [stdout]    |
[INFO] [stdout] 98 |     iter: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `margin`
[INFO] [stdout]   --> src/eq_solver/approx.rs:99:5
[INFO] [stdout]    |
[INFO] [stdout] 99 |     margin: f64,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `poly`
[INFO] [stdout]    --> src/eq_solver/approx.rs:100:5
[INFO] [stdout]     |
[INFO] [stdout] 100 |     poly: PolyApprox,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `solve_for_param`
[INFO] [stdout]    --> src/eq_solver/approx.rs:117:12
[INFO] [stdout]     |
[INFO] [stdout] 117 |     pub fn solve_for_param(&mut self, func: &mut Box<dyn Function>, func_manager: &mut Box<FunctionManager>, param: &str) -> f64 {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `quad_solver`
[INFO] [stdout]   --> src/doodlang/interpreter.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     quad_solver: QuadFind,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Parser`
[INFO] [stdout]  --> src/doodlang/parser.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct Parser;
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `generate_tree`
[INFO] [stdout]    --> src/doodlang/parser.rs:212:8
[INFO] [stdout]     |
[INFO] [stdout] 212 | pub fn generate_tree(formula: &str) -> Node<[usize; 2]> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `stuff`
[INFO] [stdout]   --> src/main.rs:38:4
[INFO] [stdout]    |
[INFO] [stdout] 38 | fn stuff(range: usize) -> [usize; 2] {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.73s
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "22767b5d77d5aec13f6d8d5ca02d72cfef1ddedd3c80545366c18cc2cf617630", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22767b5d77d5aec13f6d8d5ca02d72cfef1ddedd3c80545366c18cc2cf617630", kill_on_drop: false }`
[INFO] [stdout] 22767b5d77d5aec13f6d8d5ca02d72cfef1ddedd3c80545366c18cc2cf617630