[INFO] cloning repository https://github.com/Kerpackie/rust_sandbox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Kerpackie/rust_sandbox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKerpackie%2Frust_sandbox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKerpackie%2Frust_sandbox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f4db04faf6415faa04629f608ad7dc5c639764ad
[INFO] checking Kerpackie/rust_sandbox/f4db04faf6415faa04629f608ad7dc5c639764ad against master#57f772f25c5ce2bd870d6f8c3ab318eaee5a3326 for pr-133502-22
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKerpackie%2Frust_sandbox" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Kerpackie/rust_sandbox
[INFO] finished tweaking git repo https://github.com/Kerpackie/rust_sandbox
[INFO] tweaked toml for git repo https://github.com/Kerpackie/rust_sandbox written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Kerpackie/rust_sandbox on toolchain 57f772f25c5ce2bd870d6f8c3ab318eaee5a3326
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+57f772f25c5ce2bd870d6f8c3ab318eaee5a3326" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Kerpackie/rust_sandbox 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" "+57f772f25c5ce2bd870d6f8c3ab318eaee5a3326" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded windows-registry v0.5.2
[INFO] [stderr]   Downloaded ethers v2.0.14
[INFO] [stderr]   Downloaded tracing-attributes v0.1.29
[INFO] [stderr]   Downloaded ena v0.14.3
[INFO] [stderr]   Downloaded parity-scale-codec-derive v3.7.5
[INFO] [stderr]   Downloaded byte-slice-cast v1.2.3
[INFO] [stderr]   Downloaded scale-info-derive v2.11.6
[INFO] [stderr]   Downloaded hyper-util v0.1.14
[INFO] [stderr]   Downloaded impl-trait-for-tuples v0.2.3
[INFO] [stderr]   Downloaded scale-info v2.11.6
[INFO] [stderr]   Downloaded rand_xorshift v0.4.0
[INFO] [stderr]   Downloaded const-hex v1.14.1
[INFO] [stderr]   Downloaded parity-scale-codec v3.7.5
[INFO] [stderr]   Downloaded const_format v0.2.34
[INFO] [stderr]   Downloaded camino v1.1.10
[INFO] [stderr]   Downloaded ethers-signers v2.0.14
[INFO] [stderr]   Downloaded ws_stream_wasm v0.7.5
[INFO] [stderr]   Downloaded ethers-solc v2.0.14
[INFO] [stderr]   Downloaded ethers-addressbook v2.0.14
[INFO] [stderr]   Downloaded enr v0.10.0
[INFO] [stderr]   Downloaded ethers-middleware v2.0.14
[INFO] [stderr]   Downloaded reqwest v0.12.20
[INFO] [stderr]   Downloaded ethers-etherscan v2.0.14
[INFO] [stderr]   Downloaded ethers-contract-derive v2.0.14
[INFO] [stderr]   Downloaded ethers-contract-abigen v2.0.14
[INFO] [stderr]   Downloaded ethers-contract v2.0.14
[INFO] [stderr]   Downloaded ethers-providers v2.0.14
[INFO] [stderr]   Downloaded prettyplease v0.2.33
[INFO] [stderr]   Downloaded ethers-core v2.0.14
[INFO] [stderr]   Downloaded proptest v1.7.0
[INFO] [stderr]   Downloaded rustls v0.23.28
[INFO] [stderr]   Downloaded tokio v1.45.1
[INFO] [stderr]   Downloaded zstd-sys v2.0.15+zstd.1.5.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+57f772f25c5ce2bd870d6f8c3ab318eaee5a3326" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 79920fc5e13ea43566ab848ad1a424afecec207334c5e38d7a3b5a7c0738108c
[INFO] running `Command { std: "docker" "start" "-a" "79920fc5e13ea43566ab848ad1a424afecec207334c5e38d7a3b5a7c0738108c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "79920fc5e13ea43566ab848ad1a424afecec207334c5e38d7a3b5a7c0738108c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79920fc5e13ea43566ab848ad1a424afecec207334c5e38d7a3b5a7c0738108c", kill_on_drop: false }`
[INFO] [stdout] 79920fc5e13ea43566ab848ad1a424afecec207334c5e38d7a3b5a7c0738108c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+57f772f25c5ce2bd870d6f8c3ab318eaee5a3326" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 453fb584d7cbf928ba5cdcca78ff71f225afdcb55ef231e6e70d963f093f8530
[INFO] running `Command { std: "docker" "start" "-a" "453fb584d7cbf928ba5cdcca78ff71f225afdcb55ef231e6e70d963f093f8530", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling rustversion v1.0.21
[INFO] [stderr]    Compiling zerocopy v0.8.25
[INFO] [stderr]    Compiling hashbrown v0.15.4
[INFO] [stderr]    Compiling toml_write v0.1.2
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]     Checking subtle v2.6.1
[INFO] [stderr]    Compiling winnow v0.7.10
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling unicode-xid v0.2.6
[INFO] [stderr]    Compiling crunchy v0.2.3
[INFO] [stderr]    Compiling cc v1.2.26
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]    Compiling lock_api v0.4.13
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[INFO] [stderr]    Compiling zeroize v1.8.1
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]     Checking mio v1.0.4
[INFO] [stderr]     Checking socket2 v0.5.10
[INFO] [stderr]     Checking signal-hook-registry v1.4.5
[INFO] [stderr]     Checking der v0.7.10
[INFO] [stderr]     Checking rustc-hex v2.1.0
[INFO] [stderr]     Checking futures-task v0.3.31
[INFO] [stderr]    Compiling parity-scale-codec v3.7.5
[INFO] [stderr]    Compiling rustix v1.0.7
[INFO] [stderr]     Checking parking_lot v0.12.4
[INFO] [stderr]     Checking byte-slice-cast v1.2.3
[INFO] [stderr]     Checking bitflags v2.9.1
[INFO] [stderr]    Compiling camino v1.1.10
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling quote v1.0.40
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[INFO] [stderr]    Compiling serde_json v1.0.140
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[INFO] [stderr]    Compiling syn v2.0.101
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[INFO] [stderr]    Compiling const_format_proc_macros v0.2.34
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[INFO] [stderr]    Compiling getrandom v0.2.16
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[INFO] [stderr]    Compiling rand_core v0.6.4
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[INFO] [stderr]    Compiling ring v0.17.14
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[INFO] [stderr]    Compiling static_assertions v1.1.0
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[INFO] [stderr]    Compiling rustls v0.21.12
[INFO] [stderr]    Compiling hex v0.4.3
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[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]     Checking elliptic-curve v0.13.8
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
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[INFO] [stderr]    Compiling base16ct v0.2.0
[INFO] [stderr]    Compiling openssl-sys v0.9.109
[INFO] [stderr]     Checking chrono v0.4.41
[INFO] [stderr]     Checking ecdsa v0.16.9
[INFO] [stderr]     Checking inout v0.1.4
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[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling eyre v0.6.12
[INFO] [stderr]    Compiling wasm-bindgen v0.2.100
[INFO] [stderr]    Compiling prettyplease v0.2.33
[INFO] [stderr]    Compiling rlp-derive v0.1.0
[INFO] [stderr]     Checking k256 v0.13.4
[INFO] [stderr]     Checking cipher v0.4.4
[INFO] [stderr]    Compiling linux-raw-sys v0.9.4
[INFO] [stderr]    Compiling time-core v0.1.4
[INFO] [stderr]    Compiling keccak v0.1.5
[INFO] [stderr]    Compiling thiserror v2.0.12
[INFO] [stderr]    Compiling num-conv v0.1.0
[INFO] [stderr]     Checking powerfmt v0.2.0
[INFO] [stderr]    Compiling time-macros v0.2.22
[INFO] [stderr]     Checking fixed-hash v0.8.0
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]     Checking tempfile v3.20.0
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]     Checking deranged v0.4.0
[INFO] [stderr]    Compiling radium v0.7.0
[INFO] [stderr]     Checking webpki-roots v0.25.4
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]     Checking bs58 v0.5.1
[INFO] [stderr]     Checking sha1 v0.10.6
[INFO] [stderr]     Checking ripemd v0.1.3
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]     Checking base64 v0.13.1
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]     Checking data-encoding v2.9.0
[INFO] [stderr]    Compiling openssl v0.10.73
[INFO] [stderr]    Compiling indenter v0.3.3
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[INFO] [stderr]    Compiling native-tls v0.2.14
[INFO] [stderr]     Checking funty v2.0.0
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[INFO] [stderr]     Checking Inflector v0.11.4
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[INFO] [stderr]     Checking openssl-probe v0.1.6
[INFO] [stderr]     Checking futures-locks v0.7.1
[INFO] [stderr]     Checking rustls-pki-types v1.12.0
[INFO] [stderr]     Checking bitvec v1.0.1
[INFO] [stderr]    Compiling synstructure v0.13.2
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.100
[INFO] [stderr]     Checking sct v0.7.1
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[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling impl-trait-for-tuples v0.2.3
[INFO] [stderr]    Compiling derive_more-impl v1.0.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling zerofrom-derive v0.1.6
[INFO] [stderr]    Compiling yoke-derive v0.8.0
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[INFO] [stderr]    Compiling zerovec-derive v0.11.1
[INFO] [stderr]    Compiling displaydoc v0.2.5
[INFO] [stderr]    Compiling tracing-attributes v0.1.29
[INFO] [stderr]    Compiling futures-macro v0.3.31
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[INFO] [stderr]    Compiling auto_impl v1.3.0
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.100
[INFO] [stderr]     Checking derive_more v1.0.0
[INFO] [stderr]    Compiling thiserror-impl v2.0.12
[INFO] [stderr]     Checking thiserror v1.0.69
[INFO] [stderr]    Compiling pin-project-internal v1.1.10
[INFO] [stderr]     Checking zerofrom v0.1.6
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]    Compiling async-trait v0.1.88
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]     Checking yoke v0.8.0
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.100
[INFO] [stderr]     Checking zerovec v0.11.2
[INFO] [stderr]     Checking zerotrie v0.2.2
[INFO] [stderr]     Checking pin-project v1.1.10
[INFO] [stderr]     Checking tracing-futures v0.2.5
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[INFO] [stderr]     Checking js-sys v0.3.77
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[INFO] [stderr]     Checking icu_collections v2.0.0
[INFO] [stderr]     Checking icu_locale_core v2.0.0
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[INFO] [stderr]     Checking icu_normalizer v2.0.0
[INFO] [stderr]     Checking icu_properties v2.0.1
[INFO] [stderr]     Checking bytes v1.10.1
[INFO] [stderr]     Checking impl-serde v0.4.0
[INFO] [stderr]     Checking cargo-platform v0.1.9
[INFO] [stderr]     Checking semver v1.0.26
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
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[INFO] [stderr]     Checking coins-bip32 v0.8.7
[INFO] [stderr]     Checking idna_adapter v1.2.1
[INFO] [stderr]     Checking gloo-timers v0.2.6
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[INFO] [stderr]     Checking http v0.2.12
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[INFO] [stderr]     Checking url v2.5.4
[INFO] [stderr]     Checking cargo_metadata v0.18.1
[INFO] [stderr]     Checking jsonwebtoken v8.3.0
[INFO] [stderr]     Checking eth-keystore v0.5.0
[INFO] [stderr]     Checking impl-rlp v0.3.0
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[INFO] [stderr]     Checking tungstenite v0.20.1
[INFO] [stderr]    Compiling open-fastrlp-derive v0.1.1
[INFO] [stderr]     Checking toml v0.8.23
[INFO] [stderr]    Compiling proc-macro-crate v3.3.0
[INFO] [stderr]    Compiling parity-scale-codec-derive v3.7.5
[INFO] [stderr]    Compiling scale-info-derive v2.11.6
[INFO] [stderr]    Compiling num_enum_derive v0.7.3
[INFO] [stderr]     Checking num_enum v0.7.3
[INFO] [stderr]     Checking tokio-util v0.7.15
[INFO] [stderr]     Checking tokio-rustls v0.24.1
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[INFO] [stderr]    Compiling impl-codec v0.6.0
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[INFO] [stderr]     Checking ethbloom v0.13.0
[INFO] [stderr]     Checking primitive-types v0.12.2
[INFO] [stderr]     Checking ethereum-types v0.14.1
[INFO] [stderr]     Checking hyper v0.14.32
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[INFO] [stderr]     Checking hyper v1.6.0
[INFO] [stderr]     Checking ethers-core v2.0.14
[INFO] [stderr]     Checking hyper-util v0.1.14
[INFO] [stderr]     Checking hyper-tls v0.6.0
[INFO] [stderr]     Checking reqwest v0.12.20
[INFO] [stderr]     Checking hyper-rustls v0.24.2
[INFO] [stderr]     Checking reqwest v0.11.27
[INFO] [stderr]     Checking ethers-providers v2.0.14
[INFO] [stderr]     Checking ethers-contract-abigen v2.0.14
[INFO] [stderr]     Checking ethers-etherscan v2.0.14
[INFO] [stderr]     Checking ethers-signers v2.0.14
[INFO] [stderr]     Checking ethers-addressbook v2.0.14
[INFO] [stderr]    Compiling ethers-contract-derive v2.0.14
[INFO] [stderr]     Checking ethers-contract v2.0.14
[INFO] [stderr]     Checking ethers-middleware v2.0.14
[INFO] [stderr]     Checking ethers v2.0.14
[INFO] [stderr]     Checking rust_sandbox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: enum `CarColour` is never used
[INFO] [stdout]  --> src/enums.rs:2:6
[INFO] [stdout]   |
[INFO] [stdout] 2 | enum CarColour {
[INFO] [stdout]   |      ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `GivenResult` is never used
[INFO] [stdout]   --> src/enums.rs:10:6
[INFO] [stdout]    |
[INFO] [stdout] 10 | enum GivenResult<T, E> {
[INFO] [stdout]    |      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `GivenOption` is never used
[INFO] [stdout]   --> src/enums.rs:17:6
[INFO] [stdout]    |
[INFO] [stdout] 17 | enum GivenOption<T> {
[INFO] [stdout]    |      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_car_colour_blue` is never used
[INFO] [stdout]   --> src/enums.rs:22:4
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn create_car_colour_blue() -> CarColour {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check_under_five` is never used
[INFO] [stdout]   --> src/enums.rs:28:4
[INFO] [stdout]    |
[INFO] [stdout] 28 | fn check_under_five(num_check: u8) -> GivenResult<u8, String> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `remainder_zero` is never used
[INFO] [stdout]   --> src/enums.rs:40:4
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn remainder_zero(num_check: f32) -> GivenOption<f32> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check_under_five_built_in` is never used
[INFO] [stdout]   --> src/enums.rs:51:4
[INFO] [stdout]    |
[INFO] [stdout] 51 | fn check_under_five_built_in(num_check: u8) -> Result<u8, String> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `remainder_zero_build_in` is never used
[INFO] [stdout]   --> src/enums.rs:59:4
[INFO] [stdout]    |
[INFO] [stdout] 59 | fn remainder_zero_build_in(num_check: f32) -> Option<f32> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `EthereumAddress` is never used
[INFO] [stdout]  --> src/polymorphism.rs:5:7
[INFO] [stdout]   |
[INFO] [stdout] 5 | trait EthereumAddress {
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_ethereum_data` is never used
[INFO] [stdout]   --> src/polymorphism.rs:25:4
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn get_ethereum_data<T: EthereumAddress>(address: T) -> Address {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `User` is never constructed
[INFO] [stdout]  --> src/structs.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct User {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `increment_signin_count` and `change_email` are never used
[INFO] [stdout]   --> src/structs.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl User {
[INFO] [stdout]    | --------- methods in this implementation
[INFO] [stdout] 11 |     fn increment_signin_count(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 15 |     fn change_email(&mut self, new_email: &str) {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `change_username` is never used
[INFO] [stdout]   --> src/structs.rs:21:4
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn change_username(user: &mut User, new_username: &str) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Attacker` is never used
[INFO] [stdout]  --> src/traits.rs:2:7
[INFO] [stdout]   |
[INFO] [stdout] 2 | trait Attacker {
[INFO] [stdout]   |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Character` is never used
[INFO] [stdout]  --> src/traits.rs:7:6
[INFO] [stdout]   |
[INFO] [stdout] 7 | enum Character {
[INFO] [stdout]   |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `example_0_1` is never used
[INFO] [stdout]   --> src/lifetimes.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn example_0_1() {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `example_1` is never used
[INFO] [stdout]   --> src/lifetimes.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn example_1() {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `example_2` is never used
[INFO] [stdout]   --> src/lifetimes.rs:74:4
[INFO] [stdout]    |
[INFO] [stdout] 74 | fn example_2() {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `example_2_3` is never used
[INFO] [stdout]    --> src/lifetimes.rs:165:4
[INFO] [stdout]     |
[INFO] [stdout] 165 | fn example_2_3() {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `example_3_generics` is never used
[INFO] [stdout]    --> src/lifetimes.rs:210:4
[INFO] [stdout]     |
[INFO] [stdout] 210 | fn example_3_generics() {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Person` is never constructed
[INFO] [stdout]    --> src/lifetimes.rs:253:8
[INFO] [stdout]     |
[INFO] [stdout] 253 | struct Person<'p> {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `example_4_structs` is never used
[INFO] [stdout]    --> src/lifetimes.rs:258:4
[INFO] [stdout]     |
[INFO] [stdout] 258 | fn example_4_structs() {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Message` is never used
[INFO] [stdout]  --> src/patterns.rs:3:6
[INFO] [stdout]   |
[INFO] [stdout] 3 | enum Message {
[INFO] [stdout]   |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `process_message` is never used
[INFO] [stdout]   --> src/patterns.rs:10:4
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn process_message(msg: Message){
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `my_async_call_decode_errors` is never used
[INFO] [stdout]  --> src/async_demo.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | async fn my_async_call_decode_errors(url: &str) -> Result<serde_json::Value, Error> {
[INFO] [stdout]   |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `my_async_call` is never used
[INFO] [stdout]   --> src/async_demo.rs:18:10
[INFO] [stdout]    |
[INFO] [stdout] 18 | async fn my_async_call(url: &str) -> Result<serde_json::Value, reqwest::Error> {
[INFO] [stdout]    |          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/patterns.rs:52:23
[INFO] [stdout]    |
[INFO] [stdout] 52 |             Location {x, y: 0 } => println!("Y is on the axis"),
[INFO] [stdout]    |                       ^ help: try ignoring the field: `x: _`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/patterns.rs:53:29
[INFO] [stdout]    |
[INFO] [stdout] 53 |             Location {x: 0, y} => println!("X is on the axis"),
[INFO] [stdout]    |                             ^ help: try ignoring the field: `y: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/patterns.rs:54:23
[INFO] [stdout]    |
[INFO] [stdout] 54 |             Location {x, y} => println!("X and Y are not on the axis"),
[INFO] [stdout]    |                       ^ help: try ignoring the field: `x: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/patterns.rs:54:26
[INFO] [stdout]    |
[INFO] [stdout] 54 |             Location {x, y} => println!("X and Y are not on the axis"),
[INFO] [stdout]    |                          ^ help: try ignoring the field: `y: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `prob_none`
[INFO] [stdout]    --> src/patterns.rs:101:13
[INFO] [stdout]     |
[INFO] [stdout] 101 |         let prob_none: Option<i32> = None;
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_prob_none`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `some_error`
[INFO] [stdout]    --> src/patterns.rs:124:13
[INFO] [stdout]     |
[INFO] [stdout] 124 |         let some_error: Result<i32, &str> = Err("There was a problem");
[INFO] [stdout]     |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_some_error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/decl_macros.rs:42:13
[INFO] [stdout]    |
[INFO] [stdout] 42 |         let mut x: Vec<i32> = vec!();
[INFO] [stdout]    |             ----^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/decl_macros.rs:45:13
[INFO] [stdout]    |
[INFO] [stdout] 45 |         let mut y: Vec<i32> = custom_vec!(1);
[INFO] [stdout]    |             ----^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Red`, `Green`, and `Silver` are never constructed
[INFO] [stdout]  --> src/enums.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | enum CarColour {
[INFO] [stdout]   |      --------- variants in this enum
[INFO] [stdout] 3 |     Red,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 4 |     Green,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 5 |     Blue,
[INFO] [stdout] 6 |     Silver,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `CarColour` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `active` is never read
[INFO] [stdout]  --> src/structs.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct User {
[INFO] [stdout]   |        ---- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 7 |     active: bool,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `User` 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 `Warrior` and `Wizard` are never constructed
[INFO] [stdout]   --> src/traits.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout]  7 | enum Character {
[INFO] [stdout]    |      --------- variants in this enum
[INFO] [stdout]  8 |     Warrior,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]  9 |     Archer,
[INFO] [stdout] 10 |     Wizard,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Character` 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 `example_0_1` is never used
[INFO] [stdout]   --> src/lifetimes.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn example_0_1() {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `example_1` is never used
[INFO] [stdout]   --> src/lifetimes.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn example_1() {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `example_2` is never used
[INFO] [stdout]   --> src/lifetimes.rs:74:4
[INFO] [stdout]    |
[INFO] [stdout] 74 | fn example_2() {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `example_2_3` is never used
[INFO] [stdout]    --> src/lifetimes.rs:165:4
[INFO] [stdout]     |
[INFO] [stdout] 165 | fn example_2_3() {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `example_3_generics` is never used
[INFO] [stdout]    --> src/lifetimes.rs:210:4
[INFO] [stdout]     |
[INFO] [stdout] 210 | fn example_3_generics() {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Person` is never constructed
[INFO] [stdout]    --> src/lifetimes.rs:253:8
[INFO] [stdout]     |
[INFO] [stdout] 253 | struct Person<'p> {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `example_4_structs` is never used
[INFO] [stdout]    --> src/lifetimes.rs:258:4
[INFO] [stdout]     |
[INFO] [stdout] 258 | fn example_4_structs() {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/enums.rs:90:9
[INFO] [stdout]    |
[INFO] [stdout] 90 |         dbg!(under_fix_res_built_in);
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 90 |         let _ = dbg!(under_fix_res_built_in);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/enums.rs:93:9
[INFO] [stdout]    |
[INFO] [stdout] 93 |         dbg!(under_fix_res_built_in);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 93 |         let _ = dbg!(under_fix_res_built_in);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2m 27s
[INFO] running `Command { std: "docker" "inspect" "453fb584d7cbf928ba5cdcca78ff71f225afdcb55ef231e6e70d963f093f8530", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "453fb584d7cbf928ba5cdcca78ff71f225afdcb55ef231e6e70d963f093f8530", kill_on_drop: false }`
[INFO] [stdout] 453fb584d7cbf928ba5cdcca78ff71f225afdcb55ef231e6e70d963f093f8530
