[INFO] cloning repository https://github.com/Ryneqq/symbolic_approximation
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Ryneqq/symbolic_approximation" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRyneqq%2Fsymbolic_approximation", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRyneqq%2Fsymbolic_approximation'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 06cd606dc5c5f05deffa88d43d4ede7e2e3948e4
[INFO] checking Ryneqq/symbolic_approximation against try#0611f7de057c584b8771102fde7aed6c70c71d3b for pr-146440
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRyneqq%2Fsymbolic_approximation" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Ryneqq/symbolic_approximation
[INFO] finished tweaking git repo https://github.com/Ryneqq/symbolic_approximation
[INFO] tweaked toml for git repo https://github.com/Ryneqq/symbolic_approximation written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Ryneqq/symbolic_approximation on toolchain 0611f7de057c584b8771102fde7aed6c70c71d3b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Ryneqq/symbolic_approximation 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" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5c1ecfeef611c6f178456be6a8acf5ad577dff3da09ec78f87d853593fbcaa08
[INFO] running `Command { std: "docker" "start" "-a" "5c1ecfeef611c6f178456be6a8acf5ad577dff3da09ec78f87d853593fbcaa08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5c1ecfeef611c6f178456be6a8acf5ad577dff3da09ec78f87d853593fbcaa08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c1ecfeef611c6f178456be6a8acf5ad577dff3da09ec78f87d853593fbcaa08", kill_on_drop: false }`
[INFO] [stdout] 5c1ecfeef611c6f178456be6a8acf5ad577dff3da09ec78f87d853593fbcaa08
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2c0fb0e6b966ad45ea08ee778ae2028404c40bfdf77790a941159d841ec6dd19
[INFO] running `Command { std: "docker" "start" "-a" "2c0fb0e6b966ad45ea08ee778ae2028404c40bfdf77790a941159d841ec6dd19", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling libc v0.2.123
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]     Checking gimli v0.26.1
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking rustc-demangle v0.1.21
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]     Checking svg v0.7.2
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking object v0.27.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling backtrace v0.3.64
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking addr2line v0.17.0
[INFO] [stderr]     Checking prime_store v0.1.0 (/opt/rustwide/workdir/crates/prime_store)
[INFO] [stdout] warning: unused import: `itertools::Itertools`
[INFO] [stdout]  --> crates/prime_store/src/primes.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use itertools::Itertools;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Range`
[INFO] [stdout]  --> crates/prime_store/src/primes.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::ops::Range;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::primes::*`
[INFO] [stdout]  --> crates/prime_store/src/lib.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use self::primes::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `itertools::Itertools`
[INFO] [stdout]  --> crates/prime_store/src/primes.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use itertools::Itertools;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Range`
[INFO] [stdout]  --> crates/prime_store/src/primes.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::ops::Range;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::primes::*`
[INFO] [stdout]  --> crates/prime_store/src/lib.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use self::primes::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PrimeStore` is never constructed
[INFO] [stdout]   --> crates/prime_store/src/primes.rs:70:8
[INFO] [stdout]    |
[INFO] [stdout] 70 | struct PrimeStore {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> crates/prime_store/src/primes.rs:91:12
[INFO] [stdout]     |
[INFO] [stdout]  90 | impl PrimeStore {
[INFO] [stdout]     | --------------- associated items in this implementation
[INFO] [stdout]  91 |     pub fn new(n: usize) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 116 |     pub fn is_prime(&self, number: f64) -> bool {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 125 |     fn into_number(idx: usize) -> usize {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 129 |     fn prime(idx: usize) -> f64 {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 133 |     fn idx(prime: f64) -> usize {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 137 |     fn iter_primes<'a>(&'a self) -> impl DoubleEndedIterator<Item = usize> + 'a {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 168 |     fn next_prime(&self, x: f64) -> f64 {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 191 |     fn previous_prime(&self, x: f64) -> f64 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PrimeStore` is never constructed
[INFO] [stdout]   --> crates/prime_store/src/primes.rs:70:8
[INFO] [stdout]    |
[INFO] [stdout] 70 | struct PrimeStore {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> crates/prime_store/src/primes.rs:91:12
[INFO] [stdout]     |
[INFO] [stdout]  90 | impl PrimeStore {
[INFO] [stdout]     | --------------- associated items in this implementation
[INFO] [stdout]  91 |     pub fn new(n: usize) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 116 |     pub fn is_prime(&self, number: f64) -> bool {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 125 |     fn into_number(idx: usize) -> usize {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 129 |     fn prime(idx: usize) -> f64 {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 133 |     fn idx(prime: f64) -> usize {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 137 |     fn iter_primes<'a>(&'a self) -> impl DoubleEndedIterator<Item = usize> + 'a {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 168 |     fn next_prime(&self, x: f64) -> f64 {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 191 |     fn previous_prime(&self, x: f64) -> f64 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling variant_count v1.1.0
[INFO] [stderr]    Compiling toml v0.5.9
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking plotlib v0.5.1
[INFO] [stderr]    Compiling proc-macro-crate v1.1.3
[INFO] [stderr]    Compiling num_enum_derive v0.5.7
[INFO] [stderr]     Checking num_enum v0.5.7
[INFO] [stderr]     Checking symbols v0.1.0 (/opt/rustwide/workdir/crates/symbols)
[INFO] [stdout] warning: unused variable: `operator`
[INFO] [stdout]   --> crates/symbols/src/fun.rs:67:28
[INFO] [stdout]    |
[INFO] [stdout] 67 |         let extract_fun = |operator: &str| {}; // this is not the best way i have to match function to the sign
[INFO] [stdout]    |                            ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_operator`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `equation`
[INFO] [stdout]   --> crates/symbols/src/fun.rs:61:20
[INFO] [stdout]    |
[INFO] [stdout] 61 |         let (vars, equation) = (
[INFO] [stdout]    |                    ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_equation`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vars`
[INFO] [stdout]   --> crates/symbols/src/fun.rs:65:13
[INFO] [stdout]    |
[INFO] [stdout] 65 |         let vars = vars[1..vars.len()].split(",").map(|var| var.trim());
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_vars`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `extract_fun`
[INFO] [stdout]   --> crates/symbols/src/fun.rs:67:13
[INFO] [stdout]    |
[INFO] [stdout] 67 |         let extract_fun = |operator: &str| {}; // this is not the best way i have to match function to the sign
[INFO] [stdout]    |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_extract_fun`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Sequence` is never constructed
[INFO] [stdout]  --> crates/symbols/src/sequence.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Sequence<F> {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> crates/symbols/src/sequence.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | / impl<F> Sequence<F>
[INFO] [stdout] 11 | |     where F: FnMut() -> f64
[INFO] [stdout]    | |___________________________- associated function in this implementation
[INFO] [stdout] 12 |   {
[INFO] [stdout] 13 |       pub fn new(len: usize, f: F) -> Self {
[INFO] [stdout]    |              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sequence` is never used
[INFO] [stdout]   --> crates/symbols/src/sequence.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub fn sequence(len: usize) -> impl Iterator<Item = f64> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `random` is never used
[INFO] [stdout]   --> crates/symbols/src/sequence.rs:47:4
[INFO] [stdout]    |
[INFO] [stdout] 47 | fn random(mut len: usize) -> impl FnMut() -> f64 {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking bin v0.1.0 (/opt/rustwide/workdir/crates/bin)
[INFO] [stdout] warning: unused variable: `operator`
[INFO] [stdout]   --> crates/symbols/src/fun.rs:67:28
[INFO] [stdout]    |
[INFO] [stdout] 67 |         let extract_fun = |operator: &str| {}; // this is not the best way i have to match function to the sign
[INFO] [stdout]    |                            ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_operator`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `equation`
[INFO] [stdout]   --> crates/symbols/src/fun.rs:61:20
[INFO] [stdout]    |
[INFO] [stdout] 61 |         let (vars, equation) = (
[INFO] [stdout]    |                    ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_equation`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vars`
[INFO] [stdout]   --> crates/symbols/src/fun.rs:65:13
[INFO] [stdout]    |
[INFO] [stdout] 65 |         let vars = vars[1..vars.len()].split(",").map(|var| var.trim());
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_vars`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `extract_fun`
[INFO] [stdout]   --> crates/symbols/src/fun.rs:67:13
[INFO] [stdout]    |
[INFO] [stdout] 67 |         let extract_fun = |operator: &str| {}; // this is not the best way i have to match function to the sign
[INFO] [stdout]    |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_extract_fun`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `Phenotype` is never constructed
[INFO] [stdout]  --> crates/bin/src/main.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Phenotype {
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]   = note: `#[deny(unused_unconstructable_pub_struct)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `code` is never read
[INFO] [stdout]  --> crates/bin/src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Phenotype {
[INFO] [stdout]   |            --------- field in this struct
[INFO] [stdout] 4 |     code: Value
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bin` (bin "bin" test) due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: struct `Phenotype` is never constructed
[INFO] [stdout]  --> crates/bin/src/main.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Phenotype {
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]   = note: `#[deny(unused_unconstructable_pub_struct)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `code` is never read
[INFO] [stdout]  --> crates/bin/src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Phenotype {
[INFO] [stdout]   |            --------- field in this struct
[INFO] [stdout] 4 |     code: Value
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bin` (bin "bin") due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "2c0fb0e6b966ad45ea08ee778ae2028404c40bfdf77790a941159d841ec6dd19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c0fb0e6b966ad45ea08ee778ae2028404c40bfdf77790a941159d841ec6dd19", kill_on_drop: false }`
[INFO] [stdout] 2c0fb0e6b966ad45ea08ee778ae2028404c40bfdf77790a941159d841ec6dd19
