[INFO] cloning repository https://github.com/RoskiDeluge/playaround
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/RoskiDeluge/playaround" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRoskiDeluge%2Fplayaround", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRoskiDeluge%2Fplayaround'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c19d3614f606fad3fbc37de9c2236e590d8aa9d9
[INFO] checking RoskiDeluge/playaround against master#c8a31b780d5415358566a20b94912620a3f27067 for pr-139493-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRoskiDeluge%2Fplayaround" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/RoskiDeluge/playaround
[INFO] finished tweaking git repo https://github.com/RoskiDeluge/playaround
[INFO] tweaked toml for git repo https://github.com/RoskiDeluge/playaround written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/RoskiDeluge/playaround on toolchain c8a31b780d5415358566a20b94912620a3f27067
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c8a31b780d5415358566a20b94912620a3f27067" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/RoskiDeluge/playaround 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" "+c8a31b780d5415358566a20b94912620a3f27067" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ethers v2.0.14
[INFO] [stderr]   Downloaded auto_impl v1.2.0
[INFO] [stderr]   Downloaded lalrpop-util v0.20.2
[INFO] [stderr]   Downloaded ethers-etherscan v2.0.14
[INFO] [stderr]   Downloaded ethers-providers v2.0.14
[INFO] [stderr]   Downloaded ethers-contract-abigen v2.0.14
[INFO] [stderr]   Downloaded enr v0.10.0
[INFO] [stderr]   Downloaded ethers-contract v2.0.14
[INFO] [stderr]   Downloaded ethers-middleware v2.0.14
[INFO] [stderr]   Downloaded ethers-contract-derive v2.0.14
[INFO] [stderr]   Downloaded ethers-core v2.0.14
[INFO] [stderr]   Downloaded ethers-addressbook v2.0.14
[INFO] [stderr]   Downloaded proptest v1.5.0
[INFO] [stderr]   Downloaded lalrpop v0.20.2
[INFO] [stderr]   Downloaded ethers-solc v2.0.14
[INFO] [stderr]   Downloaded const-hex v1.12.0
[INFO] [stderr]   Downloaded ethers-signers v2.0.14
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c8a31b780d5415358566a20b94912620a3f27067" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cd90491ae71e7ca94a58cdec17cbc078b3dda60808c670285d15c3eca9f2fa01
[INFO] running `Command { std: "docker" "start" "-a" "cd90491ae71e7ca94a58cdec17cbc078b3dda60808c670285d15c3eca9f2fa01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cd90491ae71e7ca94a58cdec17cbc078b3dda60808c670285d15c3eca9f2fa01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd90491ae71e7ca94a58cdec17cbc078b3dda60808c670285d15c3eca9f2fa01", kill_on_drop: false }`
[INFO] [stdout] cd90491ae71e7ca94a58cdec17cbc078b3dda60808c670285d15c3eca9f2fa01
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c8a31b780d5415358566a20b94912620a3f27067" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 71f8f0f8eca75a758de6174397b79928cbc5583c0174295dbe361c23d7c688ae
[INFO] running `Command { std: "docker" "start" "-a" "71f8f0f8eca75a758de6174397b79928cbc5583c0174295dbe361c23d7c688ae", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling unicode-ident v1.0.13
[INFO] [stderr]    Compiling serde v1.0.210
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling hashbrown v0.14.5
[INFO] [stderr]     Checking const-oid v0.9.6
[INFO] [stderr]    Compiling winnow v0.6.18
[INFO] [stderr]     Checking subtle v2.6.1
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling cc v1.1.21
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]     Checking cpufeatures v0.2.14
[INFO] [stderr]    Compiling zeroize v1.8.1
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]     Checking parking_lot_core v0.9.10
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]     Checking signal-hook-registry v1.4.2
[INFO] [stderr]     Checking rustc-hex v2.1.0
[INFO] [stderr]     Checking indexmap v2.5.0
[INFO] [stderr]    Compiling serde_json v1.0.128
[INFO] [stderr]     Checking der v0.7.9
[INFO] [stderr]    Compiling camino v1.1.9
[INFO] [stderr]     Checking futures-task v0.3.30
[INFO] [stderr]    Compiling semver v1.0.23
[INFO] [stderr]    Compiling rustversion v1.0.17
[INFO] [stderr]     Checking byte-slice-cast v1.2.2
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rustix v0.38.37
[INFO] [stderr]     Checking ff v0.13.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]     Checking bitflags v2.6.0
[INFO] [stderr]    Compiling httparse v1.9.4
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]     Checking base16ct v0.2.0
[INFO] [stderr]     Checking group v0.13.0
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]    Compiling arrayvec v0.7.6
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking uint v0.9.5
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking crypto-bigint v0.5.5
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking regex-syntax v0.8.4
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.93
[INFO] [stderr]    Compiling rustls v0.21.12
[INFO] [stderr]     Checking spki v0.7.3
[INFO] [stderr]     Checking sec1 v0.7.3
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]     Checking unicode-normalization v0.1.24
[INFO] [stderr]     Checking hmac v0.12.1
[INFO] [stderr]     Checking sha2 v0.10.8
[INFO] [stderr]     Checking pkcs8 v0.10.2
[INFO] [stderr]     Checking sha3 v0.10.8
[INFO] [stderr]     Checking rfc6979 v0.4.0
[INFO] [stderr]     Checking signature v2.2.0
[INFO] [stderr]    Compiling ring v0.17.8
[INFO] [stderr]    Compiling bumpalo v3.16.0
[INFO] [stderr]     Checking linux-raw-sys v0.4.14
[INFO] [stderr]     Checking idna v0.5.0
[INFO] [stderr]     Checking fastrand v2.1.1
[INFO] [stderr]    Compiling openssl-sys v0.9.103
[INFO] [stderr]     Checking chrono v0.4.38
[INFO] [stderr]     Checking url v2.5.2
[INFO] [stderr]     Checking inout v0.1.3
[INFO] [stderr]     Checking const-hex v1.12.0
[INFO] [stderr]    Compiling eyre v0.6.12
[INFO] [stderr]     Checking regex-automata v0.4.7
[INFO] [stderr]    Compiling prettyplease v0.2.22
[INFO] [stderr]    Compiling wasm-bindgen v0.2.93
[INFO] [stderr]     Checking unicode-xid v0.2.6
[INFO] [stderr]     Checking cipher v0.4.4
[INFO] [stderr]    Compiling keccak v0.1.5
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]     Checking elliptic-curve v0.13.8
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking webpki-roots v0.25.4
[INFO] [stderr]     Checking ipnet v2.10.0
[INFO] [stderr]     Checking ecdsa v0.16.9
[INFO] [stderr]    Compiling radium v0.7.0
[INFO] [stderr]     Checking time v0.3.36
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]     Checking bs58 v0.5.1
[INFO] [stderr]     Checking ripemd v0.1.3
[INFO] [stderr]     Checking sha1 v0.10.6
[INFO] [stderr]     Checking k256 v0.13.3
[INFO] [stderr]    Compiling indenter v0.3.3
[INFO] [stderr]     Checking data-encoding v2.6.0
[INFO] [stderr]     Checking tempfile v3.12.0
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]     Checking bech32 v0.9.1
[INFO] [stderr]     Checking regex v1.10.6
[INFO] [stderr]    Compiling openssl v0.10.66
[INFO] [stderr]    Compiling walkdir v2.5.0
[INFO] [stderr]     Checking wyz v0.5.1
[INFO] [stderr]     Checking salsa20 v0.10.2
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.93
[INFO] [stderr]     Checking pbkdf2 v0.11.0
[INFO] [stderr]     Checking send_wrapper v0.4.0
[INFO] [stderr]     Checking funty v2.0.0
[INFO] [stderr]     Checking scrypt v0.10.0
[INFO] [stderr]    Compiling native-tls v0.2.12
[INFO] [stderr]     Checking hashers v1.0.1
[INFO] [stderr]     Checking Inflector v0.11.4
[INFO] [stderr]     Checking ctr v0.9.2
[INFO] [stderr]     Checking aes v0.8.4
[INFO] [stderr]     Checking pbkdf2 v0.12.2
[INFO] [stderr]     Checking bitvec v1.0.1
[INFO] [stderr]     Checking instant v0.1.13
[INFO] [stderr]     Checking dunce v1.0.5
[INFO] [stderr]     Checking futures-locks v0.7.1
[INFO] [stderr]     Checking rustls-pki-types v1.9.0
[INFO] [stderr]     Checking sync_wrapper v1.0.1
[INFO] [stderr]     Checking sct v0.7.1
[INFO] [stderr]     Checking rustls-webpki v0.101.7
[INFO] [stderr]     Checking rustls-pemfile v2.1.3
[INFO] [stderr]    Compiling impl-trait-for-tuples v0.2.2
[INFO] [stderr]    Compiling rlp-derive v0.1.0
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.93
[INFO] [stderr]    Compiling serde_derive v1.0.210
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling thiserror-impl v1.0.63
[INFO] [stderr]    Compiling derive_more v0.99.18
[INFO] [stderr]    Compiling tokio-macros v2.4.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling auto_impl v1.2.0
[INFO] [stderr]    Compiling strum_macros v0.26.4
[INFO] [stderr]    Compiling pin-project-internal v1.1.5
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]    Compiling async-trait v0.1.82
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.93
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking pin-project v1.1.5
[INFO] [stderr]     Checking thiserror v1.0.63
[INFO] [stderr]     Checking simple_asn1 v0.6.2
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking js-sys v0.3.70
[INFO] [stderr]     Checking strum v0.26.3
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking tracing-futures v0.2.5
[INFO] [stderr]     Checking fixed-hash v0.8.0
[INFO] [stderr]     Checking gloo-timers v0.2.6
[INFO] [stderr]     Checking futures-timer v3.0.3
[INFO] [stderr]     Checking bytes v1.7.2
[INFO] [stderr]     Checking impl-serde v0.4.0
[INFO] [stderr]     Checking cargo-platform v0.1.8
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking toml_datetime v0.6.8
[INFO] [stderr]     Checking serde_spanned v0.6.7
[INFO] [stderr]     Checking coins-core v0.8.7
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking coins-bip32 v0.8.7
[INFO] [stderr]     Checking toml_edit v0.22.21
[INFO] [stderr]     Checking coins-bip39 v0.8.7
[INFO] [stderr]    Compiling rlp v0.5.2
[INFO] [stderr]     Checking tokio v1.40.0
[INFO] [stderr]     Checking http v0.2.12
[INFO] [stderr]     Checking http v1.1.0
[INFO] [stderr]    Compiling open-fastrlp-derive v0.1.1
[INFO] [stderr]    Compiling impl-rlp v0.3.0
[INFO] [stderr]     Checking enr v0.10.0
[INFO] [stderr]    Compiling cargo_metadata v0.18.1
[INFO] [stderr]     Checking jsonwebtoken v8.3.0
[INFO] [stderr]     Checking eth-keystore v0.5.0
[INFO] [stderr]     Checking http-body v0.4.6
[INFO] [stderr]     Checking tungstenite v0.20.1
[INFO] [stderr]     Checking http-body v1.0.1
[INFO] [stderr]     Checking http-body-util v0.1.2
[INFO] [stderr]     Checking toml v0.8.19
[INFO] [stderr]    Compiling proc-macro-crate v3.2.0
[INFO] [stderr]    Compiling parity-scale-codec-derive v3.6.12
[INFO] [stderr]    Compiling scale-info-derive v2.11.3
[INFO] [stderr]    Compiling num_enum_derive v0.7.3
[INFO] [stderr]     Checking num_enum v0.7.3
[INFO] [stderr]     Checking parity-scale-codec v3.6.12
[INFO] [stderr]     Checking impl-codec v0.6.0
[INFO] [stderr]     Checking scale-info v2.11.3
[INFO] [stderr]     Checking ethbloom v0.13.0
[INFO] [stderr]     Checking primitive-types v0.12.2
[INFO] [stderr]     Checking tokio-util v0.7.12
[INFO] [stderr]     Checking tokio-rustls v0.24.1
[INFO] [stderr]     Checking tokio-native-tls v0.3.1
[INFO] [stderr]     Checking tokio-tungstenite v0.20.1
[INFO] [stderr]     Checking h2 v0.3.26
[INFO] [stderr]     Checking h2 v0.4.6
[INFO] [stderr]     Checking ethereum-types v0.14.1
[INFO] [stderr]     Checking open-fastrlp v0.1.4
[INFO] [stderr]     Checking ethabi v18.0.0
[INFO] [stderr]     Checking ethers-core v2.0.14
[INFO] [stderr]     Checking hyper v1.4.1
[INFO] [stderr]     Checking hyper v0.14.30
[INFO] [stderr]     Checking hyper-util v0.1.9
[INFO] [stderr]     Checking hyper-tls v0.6.0
[INFO] [stderr]     Checking reqwest v0.12.7
[INFO] [stderr]     Checking hyper-rustls v0.24.2
[INFO] [stderr]     Checking reqwest v0.11.27
[INFO] [stderr]     Checking ethers-contract-abigen v2.0.14
[INFO] [stderr]     Checking ethers-signers v2.0.14
[INFO] [stderr]     Checking ethers-addressbook v2.0.14
[INFO] [stderr]     Checking ethers-providers v2.0.14
[INFO] [stderr]     Checking ethers-etherscan 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 playaround v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `core::num`
[INFO] [stdout]  --> src/m1_enums.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::num;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `CarColor` is never used
[INFO] [stdout]  --> src/m1_enums.rs:4:6
[INFO] [stdout]   |
[INFO] [stdout] 4 | enum CarColor {
[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/m1_enums.rs:13:6
[INFO] [stdout]    |
[INFO] [stdout] 13 | enum GivenResult<T, E> {
[INFO] [stdout]    |      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `GivenOption` is never used
[INFO] [stdout]   --> src/m1_enums.rs:20:6
[INFO] [stdout]    |
[INFO] [stdout] 20 | enum GivenOption<T> {
[INFO] [stdout]    |      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_car_color_red` is never used
[INFO] [stdout]   --> src/m1_enums.rs:25:4
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn create_car_color_red() -> CarColor {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check_under_five` is never used
[INFO] [stdout]   --> src/m1_enums.rs:30:4
[INFO] [stdout]    |
[INFO] [stdout] 30 | fn check_under_five(num_check: u8) -> GivenResult<u8, String> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check_under_five_built_in` is never used
[INFO] [stdout]   --> src/m1_enums.rs:38:4
[INFO] [stdout]    |
[INFO] [stdout] 38 | fn check_under_five_built_in(num_check: u8) -> Result<u8, String> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `remainder_zero` is never used
[INFO] [stdout]   --> src/m1_enums.rs:46:4
[INFO] [stdout]    |
[INFO] [stdout] 46 | fn remainder_zero(num_check: f32) -> GivenOption<f32> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `remainder_zero_built_in` is never used
[INFO] [stdout]   --> src/m1_enums.rs:55:4
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn remainder_zero_built_in(num_check: f32) -> Option<f32> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `User` is never constructed
[INFO] [stdout]  --> src/m2_structs.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct User {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `increment_sign_in_count` and `change_email` are never used
[INFO] [stdout]   --> src/m2_structs.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout]  9 | impl User {
[INFO] [stdout]    | --------- methods in this implementation
[INFO] [stdout] 10 |     fn increment_sign_in_count(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 14 |     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/m2_structs.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | 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/m3_traits.rs:1:7
[INFO] [stdout]   |
[INFO] [stdout] 1 | trait Attacker {
[INFO] [stdout]   |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Character` is never used
[INFO] [stdout]  --> src/m3_traits.rs:6:6
[INFO] [stdout]   |
[INFO] [stdout] 6 | enum Character {
[INFO] [stdout]   |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `EthereumAddress` is never used
[INFO] [stdout]  --> src/m4_polymorphism.rs:4:7
[INFO] [stdout]   |
[INFO] [stdout] 4 | trait EthereumAddress {
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_ethereum_data` is never used
[INFO] [stdout]   --> src/m4_polymorphism.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn get_ethereum_data<T: EthereumAddress>(address: T) -> Address {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Message` is never used
[INFO] [stdout]  --> src/m6_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/m6_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` is never used
[INFO] [stdout]  --> src/m7_async.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | async fn my_async_call(url: &str) -> Result<serde_json::Value, reqwest::Error> {
[INFO] [stdout]   |          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::num`
[INFO] [stdout]  --> src/m1_enums.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::num;
[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 variable: `my_quit`
[INFO] [stdout]   --> src/m6_patterns.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |         let my_quit = Message::Quit;
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_my_quit`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `my_color`
[INFO] [stdout]   --> src/m6_patterns.rs:35:13
[INFO] [stdout]    |
[INFO] [stdout] 35 |         let my_color = Message::ChangeColor(10, 20, 255);
[INFO] [stdout]    |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_my_color`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `my_move`
[INFO] [stdout]   --> src/m6_patterns.rs:36:13
[INFO] [stdout]    |
[INFO] [stdout] 36 |         let my_move = Message::Move { x: 10, y: 200 };
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_my_move`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `some_err`
[INFO] [stdout]   --> src/m6_patterns.rs:81:13
[INFO] [stdout]    |
[INFO] [stdout] 81 |         let some_err: Result<i32, &str> = Err("There was a problem");
[INFO] [stdout]    |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_some_err`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/m6_patterns.rs:120:24
[INFO] [stdout]     |
[INFO] [stdout] 120 |             Location { x, y: 0 } => println!("Y is on the axis"),
[INFO] [stdout]     |                        ^ help: try ignoring the field: `x: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/m6_patterns.rs:121:30
[INFO] [stdout]     |
[INFO] [stdout] 121 |             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/m6_patterns.rs:122:24
[INFO] [stdout]     |
[INFO] [stdout] 122 |             Location { x, y } => println!("X and Y are not the axis"),
[INFO] [stdout]     |                        ^ help: try ignoring the field: `x: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/m6_patterns.rs:122:27
[INFO] [stdout]     |
[INFO] [stdout] 122 |             Location { x, y } => println!("X and Y are not the axis"),
[INFO] [stdout]     |                           ^ help: try ignoring the field: `y: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Green`, `Blue`, and `Silver` are never constructed
[INFO] [stdout]  --> src/m1_enums.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | enum CarColor {
[INFO] [stdout]   |      -------- variants in this enum
[INFO] [stdout] 5 |     Red,
[INFO] [stdout] 6 |     Green,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 7 |     Blue,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 8 |     Silver,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `CarColor` 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: enum `GivenResult` is never used
[INFO] [stdout]   --> src/m1_enums.rs:13:6
[INFO] [stdout]    |
[INFO] [stdout] 13 | enum GivenResult<T, E> {
[INFO] [stdout]    |      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `GivenOption` is never used
[INFO] [stdout]   --> src/m1_enums.rs:20:6
[INFO] [stdout]    |
[INFO] [stdout] 20 | enum GivenOption<T> {
[INFO] [stdout]    |      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check_under_five` is never used
[INFO] [stdout]   --> src/m1_enums.rs:30:4
[INFO] [stdout]    |
[INFO] [stdout] 30 | 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/m1_enums.rs:46:4
[INFO] [stdout]    |
[INFO] [stdout] 46 | fn remainder_zero(num_check: f32) -> GivenOption<f32> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `active` is never read
[INFO] [stdout]  --> src/m2_structs.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct User {
[INFO] [stdout]   |        ---- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 6 |     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 `Archer` are never constructed
[INFO] [stdout]  --> src/m3_traits.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | enum Character {
[INFO] [stdout]   |      --------- variants in this enum
[INFO] [stdout] 7 |     Warrior,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 8 |     Archer,
[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: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/m1_enums.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 74 |         dbg!(under_five_res);
[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] 74 |         let _ = dbg!(under_five_res);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2m 03s
[INFO] running `Command { std: "docker" "inspect" "71f8f0f8eca75a758de6174397b79928cbc5583c0174295dbe361c23d7c688ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71f8f0f8eca75a758de6174397b79928cbc5583c0174295dbe361c23d7c688ae", kill_on_drop: false }`
[INFO] [stdout] 71f8f0f8eca75a758de6174397b79928cbc5583c0174295dbe361c23d7c688ae
