[INFO] cloning repository https://github.com/marcellodesales/rust-fundamentals-notes
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/marcellodesales/rust-fundamentals-notes" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarcellodesales%2Frust-fundamentals-notes", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarcellodesales%2Frust-fundamentals-notes'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9c0051551a573f526bf2ea91b896fff81af81035
[INFO] testing marcellodesales/rust-fundamentals-notes against beta-2025-09-21 for beta-1.91-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarcellodesales%2Frust-fundamentals-notes" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/marcellodesales/rust-fundamentals-notes
[INFO] finished tweaking git repo https://github.com/marcellodesales/rust-fundamentals-notes
[INFO] tweaked toml for git repo https://github.com/marcellodesales/rust-fundamentals-notes written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/marcellodesales/rust-fundamentals-notes on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/marcellodesales/rust-fundamentals-notes 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" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e93ce1295c336e2307fbbf913b32320f827139142a2424cabbcbcd82cf5a5f4a
[INFO] running `Command { std: "docker" "start" "-a" "e93ce1295c336e2307fbbf913b32320f827139142a2424cabbcbcd82cf5a5f4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e93ce1295c336e2307fbbf913b32320f827139142a2424cabbcbcd82cf5a5f4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e93ce1295c336e2307fbbf913b32320f827139142a2424cabbcbcd82cf5a5f4a", kill_on_drop: false }`
[INFO] [stdout] e93ce1295c336e2307fbbf913b32320f827139142a2424cabbcbcd82cf5a5f4a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e17a6ec8f4ab5ec0a4890cb51ed6d45beb7e671691e91567ef6a2c9ce4637a48
[INFO] running `Command { std: "docker" "start" "-a" "e17a6ec8f4ab5ec0a4890cb51ed6d45beb7e671691e91567ef6a2c9ce4637a48", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling getrandom v0.2.8
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling rust-fundamentals v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/generics.rs:100:10
[INFO] [stdout]     |
[INFO] [stdout] 100 |         };
[INFO] [stdout]     |          ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `have_id` is never read
[INFO] [stdout]   --> src/language_operators.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |         have_id = false;
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]    --> src/control_flow.rs:135:12
[INFO] [stdout]     |
[INFO] [stdout] 135 |         if let animal = "Duck" {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]     = help: consider replacing the `if let` with a `let`
[INFO] [stdout]     = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/collections.rs:15:13
[INFO] [stdout]    |
[INFO] [stdout] 15 |         let mut cars = vec!["sedan", "pickup", "utility"];
[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: enum `Colors` is never used
[INFO] [stdout]   --> src/control_flow.rs:28:14
[INFO] [stdout]    |
[INFO] [stdout] 28 |         enum Colors {
[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 `Types` is never used
[INFO] [stdout]   --> src/control_flow.rs:34:14
[INFO] [stdout]    |
[INFO] [stdout] 34 |         enum Types {
[INFO] [stdout]    |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `lifetime_syntax` is never used
[INFO] [stdout]    --> src/ownership_and_borrowing.rs:135:8
[INFO] [stdout]     |
[INFO] [stdout] 135 |     fn lifetime_syntax<'a, 'b>(p1: &'a i32, ps2: i32, p3: &'b f64) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]  --> src/data_structures_and_traits.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     struct Waypoint {
[INFO] [stdout]   |            -------- field in this struct
[INFO] [stdout] 8 |         name: String,
[INFO] [stdout]   |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NdbNavAid` is never constructed
[INFO] [stdout]   --> src/generics.rs:11:16
[INFO] [stdout]    |
[INFO] [stdout] 11 |         struct NdbNavAid {
[INFO] [stdout]    |                ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `VorNavAid` is never constructed
[INFO] [stdout]   --> src/generics.rs:15:16
[INFO] [stdout]    |
[INFO] [stdout] 15 |         struct VorNavAid {
[INFO] [stdout]    |                ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name`, `frequency`, and `data` are never read
[INFO] [stdout]   --> src/generics.rs:23:13
[INFO] [stdout]    |
[INFO] [stdout] 22 |         struct NavAid<T, U> {
[INFO] [stdout]    |                ------ fields in this struct
[INFO] [stdout] 23 |             name: String,
[INFO] [stdout]    |             ^^^^
[INFO] [stdout] 24 |             frequency: T,
[INFO] [stdout]    |             ^^^^^^^^^
[INFO] [stdout] 25 |             data: U
[INFO] [stdout]    |             ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `NavAid` 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 `lifetime` is never used
[INFO] [stdout]   --> src/generics.rs:59:12
[INFO] [stdout]    |
[INFO] [stdout] 59 |         fn lifetime<'a>(p1: &'a i32) {}
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `generic` is never used
[INFO] [stdout]   --> src/generics.rs:60:12
[INFO] [stdout]    |
[INFO] [stdout] 60 |         fn generic<T>(p1: T) {}
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `add_or_multiply` is never used
[INFO] [stdout]    --> src/generics.rs:106:12
[INFO] [stdout]     |
[INFO] [stdout] 106 |         fn add_or_multiply<T>(operand1: T, operand2: T) -> T
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `DataTypesAndModules` should have a snake case name
[INFO] [stdout]  --> src/data_types_and_variables.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub mod DataTypesAndModules {
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `data_types_and_modules`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `StringsAndStringSlices` should have a snake case name
[INFO] [stdout]   --> src/strings_and_slices.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub mod StringsAndStringSlices {
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `strings_and_string_slices`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `NumbersAndVariables` should have a snake case name
[INFO] [stdout]  --> src/number_variables.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub mod NumbersAndVariables {
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `numbers_and_variables`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `LanguageOperators` should have a snake case name
[INFO] [stdout]  --> src/language_operators.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub mod LanguageOperators {
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `language_operators`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `ProjectV1` should have a snake case name
[INFO] [stdout]  --> src/project.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub mod ProjectV1 {
[INFO] [stdout]   |         ^^^^^^^^^ help: convert the identifier to snake case: `project_v1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `ProjectV2` should have a snake case name
[INFO] [stdout]   --> src/project.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub mod ProjectV2 {
[INFO] [stdout]    |         ^^^^^^^^^ help: convert the identifier to snake case: `project_v2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `ControlFlow` should have a snake case name
[INFO] [stdout]  --> src/control_flow.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub mod ControlFlow {
[INFO] [stdout]   |         ^^^^^^^^^^^ help: convert the identifier to snake case: `control_flow`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `OwnershipAndBorrowing` should have a snake case name
[INFO] [stdout]  --> src/ownership_and_borrowing.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub mod OwnershipAndBorrowing {
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `ownership_and_borrowing`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `FunctionsDefinitions` should have a snake case name
[INFO] [stdout]  --> src/functions_definitions.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub mod FunctionsDefinitions {
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `functions_definitions`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `ErrorHandling` should have a snake case name
[INFO] [stdout]  --> src/error_handling.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub mod ErrorHandling {
[INFO] [stdout]   |         ^^^^^^^^^^^^^ help: convert the identifier to snake case: `error_handling`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `StructsAndImpls` should have a snake case name
[INFO] [stdout]  --> src/data_structures_and_traits.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub mod StructsAndImpls {
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `structs_and_impls`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `Traits` should have a snake case name
[INFO] [stdout]   --> src/data_structures_and_traits.rs:80:9
[INFO] [stdout]    |
[INFO] [stdout] 80 | pub mod Traits {
[INFO] [stdout]    |         ^^^^^^ help: convert the identifier to snake case: `traits`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `Collections` should have a snake case name
[INFO] [stdout]  --> src/collections.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub mod Collections {
[INFO] [stdout]   |         ^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `collections`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `Generics` should have a snake case name
[INFO] [stdout]  --> src/generics.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub mod Generics {
[INFO] [stdout]   |         ^^^^^^^^ help: convert the identifier to snake case: `generics`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `Concurrency` should have a snake case name
[INFO] [stdout]  --> src/concurrency.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub mod Concurrency {
[INFO] [stdout]   |         ^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `concurrency`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `Calculations` should have a snake case name
[INFO] [stdout]  --> src/geo.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub mod Calculations {
[INFO] [stdout]   |         ^^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `calculations`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.36s
[INFO] running `Command { std: "docker" "inspect" "e17a6ec8f4ab5ec0a4890cb51ed6d45beb7e671691e91567ef6a2c9ce4637a48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e17a6ec8f4ab5ec0a4890cb51ed6d45beb7e671691e91567ef6a2c9ce4637a48", kill_on_drop: false }`
[INFO] [stdout] e17a6ec8f4ab5ec0a4890cb51ed6d45beb7e671691e91567ef6a2c9ce4637a48
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 77f06cfcf7d80a8d82f8b562948762601c04163f1db8b0fa8b993e5ddfc4467d
[INFO] running `Command { std: "docker" "start" "-a" "77f06cfcf7d80a8d82f8b562948762601c04163f1db8b0fa8b993e5ddfc4467d", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-fundamentals v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/generics.rs:100:10
[INFO] [stdout]     |
[INFO] [stdout] 100 |         };
[INFO] [stdout]     |          ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `have_id` is never read
[INFO] [stdout]   --> src/language_operators.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |         have_id = false;
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]    --> src/control_flow.rs:135:12
[INFO] [stdout]     |
[INFO] [stdout] 135 |         if let animal = "Duck" {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]     = help: consider replacing the `if let` with a `let`
[INFO] [stdout]     = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/collections.rs:15:13
[INFO] [stdout]    |
[INFO] [stdout] 15 |         let mut cars = vec!["sedan", "pickup", "utility"];
[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: enum `Colors` is never used
[INFO] [stdout]   --> src/control_flow.rs:28:14
[INFO] [stdout]    |
[INFO] [stdout] 28 |         enum Colors {
[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 `Types` is never used
[INFO] [stdout]   --> src/control_flow.rs:34:14
[INFO] [stdout]    |
[INFO] [stdout] 34 |         enum Types {
[INFO] [stdout]    |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `lifetime_syntax` is never used
[INFO] [stdout]    --> src/ownership_and_borrowing.rs:135:8
[INFO] [stdout]     |
[INFO] [stdout] 135 |     fn lifetime_syntax<'a, 'b>(p1: &'a i32, ps2: i32, p3: &'b f64) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]  --> src/data_structures_and_traits.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     struct Waypoint {
[INFO] [stdout]   |            -------- field in this struct
[INFO] [stdout] 8 |         name: String,
[INFO] [stdout]   |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NdbNavAid` is never constructed
[INFO] [stdout]   --> src/generics.rs:11:16
[INFO] [stdout]    |
[INFO] [stdout] 11 |         struct NdbNavAid {
[INFO] [stdout]    |                ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `VorNavAid` is never constructed
[INFO] [stdout]   --> src/generics.rs:15:16
[INFO] [stdout]    |
[INFO] [stdout] 15 |         struct VorNavAid {
[INFO] [stdout]    |                ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name`, `frequency`, and `data` are never read
[INFO] [stdout]   --> src/generics.rs:23:13
[INFO] [stdout]    |
[INFO] [stdout] 22 |         struct NavAid<T, U> {
[INFO] [stdout]    |                ------ fields in this struct
[INFO] [stdout] 23 |             name: String,
[INFO] [stdout]    |             ^^^^
[INFO] [stdout] 24 |             frequency: T,
[INFO] [stdout]    |             ^^^^^^^^^
[INFO] [stdout] 25 |             data: U
[INFO] [stdout]    |             ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `NavAid` 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 `lifetime` is never used
[INFO] [stdout]   --> src/generics.rs:59:12
[INFO] [stdout]    |
[INFO] [stdout] 59 |         fn lifetime<'a>(p1: &'a i32) {}
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `generic` is never used
[INFO] [stdout]   --> src/generics.rs:60:12
[INFO] [stdout]    |
[INFO] [stdout] 60 |         fn generic<T>(p1: T) {}
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `add_or_multiply` is never used
[INFO] [stdout]    --> src/generics.rs:106:12
[INFO] [stdout]     |
[INFO] [stdout] 106 |         fn add_or_multiply<T>(operand1: T, operand2: T) -> T
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `DataTypesAndModules` should have a snake case name
[INFO] [stdout]  --> src/data_types_and_variables.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub mod DataTypesAndModules {
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `data_types_and_modules`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `StringsAndStringSlices` should have a snake case name
[INFO] [stdout]   --> src/strings_and_slices.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub mod StringsAndStringSlices {
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `strings_and_string_slices`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `NumbersAndVariables` should have a snake case name
[INFO] [stdout]  --> src/number_variables.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub mod NumbersAndVariables {
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `numbers_and_variables`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `LanguageOperators` should have a snake case name
[INFO] [stdout]  --> src/language_operators.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub mod LanguageOperators {
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `language_operators`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `ProjectV1` should have a snake case name
[INFO] [stdout]  --> src/project.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub mod ProjectV1 {
[INFO] [stdout]   |         ^^^^^^^^^ help: convert the identifier to snake case: `project_v1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `ProjectV2` should have a snake case name
[INFO] [stdout]   --> src/project.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub mod ProjectV2 {
[INFO] [stdout]    |         ^^^^^^^^^ help: convert the identifier to snake case: `project_v2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `ControlFlow` should have a snake case name
[INFO] [stdout]  --> src/control_flow.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub mod ControlFlow {
[INFO] [stdout]   |         ^^^^^^^^^^^ help: convert the identifier to snake case: `control_flow`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `OwnershipAndBorrowing` should have a snake case name
[INFO] [stdout]  --> src/ownership_and_borrowing.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub mod OwnershipAndBorrowing {
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `ownership_and_borrowing`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `FunctionsDefinitions` should have a snake case name
[INFO] [stdout]  --> src/functions_definitions.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub mod FunctionsDefinitions {
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `functions_definitions`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `ErrorHandling` should have a snake case name
[INFO] [stdout]  --> src/error_handling.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub mod ErrorHandling {
[INFO] [stdout]   |         ^^^^^^^^^^^^^ help: convert the identifier to snake case: `error_handling`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `StructsAndImpls` should have a snake case name
[INFO] [stdout]  --> src/data_structures_and_traits.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub mod StructsAndImpls {
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `structs_and_impls`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `Traits` should have a snake case name
[INFO] [stdout]   --> src/data_structures_and_traits.rs:80:9
[INFO] [stdout]    |
[INFO] [stdout] 80 | pub mod Traits {
[INFO] [stdout]    |         ^^^^^^ help: convert the identifier to snake case: `traits`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `Collections` should have a snake case name
[INFO] [stdout]  --> src/collections.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub mod Collections {
[INFO] [stdout]   |         ^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `collections`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `Generics` should have a snake case name
[INFO] [stdout]  --> src/generics.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub mod Generics {
[INFO] [stdout]   |         ^^^^^^^^ help: convert the identifier to snake case: `generics`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `Concurrency` should have a snake case name
[INFO] [stdout]  --> src/concurrency.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub mod Concurrency {
[INFO] [stdout]   |         ^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `concurrency`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `Calculations` should have a snake case name
[INFO] [stdout]  --> src/geo.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub mod Calculations {
[INFO] [stdout]   |         ^^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `calculations`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "77f06cfcf7d80a8d82f8b562948762601c04163f1db8b0fa8b993e5ddfc4467d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77f06cfcf7d80a8d82f8b562948762601c04163f1db8b0fa8b993e5ddfc4467d", kill_on_drop: false }`
[INFO] [stdout] 77f06cfcf7d80a8d82f8b562948762601c04163f1db8b0fa8b993e5ddfc4467d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0de39912b1586c34ed72f57788ea02e7b1dcada1bf61885edc776c1b0ea10214
[INFO] running `Command { std: "docker" "start" "-a" "0de39912b1586c34ed72f57788ea02e7b1dcada1bf61885edc776c1b0ea10214", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/generics.rs:100:10
[INFO] [stderr]     |
[INFO] [stderr] 100 |         };
[INFO] [stderr]     |          ^ help: remove this semicolon
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(redundant_semicolons)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `have_id` is never read
[INFO] [stderr]   --> src/language_operators.rs:56:9
[INFO] [stderr]    |
[INFO] [stderr] 56 |         have_id = false;
[INFO] [stderr]    |         ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: irrefutable `if let` pattern
[INFO] [stderr]    --> src/control_flow.rs:135:12
[INFO] [stderr]     |
[INFO] [stderr] 135 |         if let animal = "Duck" {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this pattern will always match, so the `if let` is useless
[INFO] [stderr]     = help: consider replacing the `if let` with a `let`
[INFO] [stderr]     = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/collections.rs:15:13
[INFO] [stderr]    |
[INFO] [stderr] 15 |         let mut cars = vec!["sedan", "pickup", "utility"];
[INFO] [stderr]    |             ----^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Colors` is never used
[INFO] [stderr]   --> src/control_flow.rs:28:14
[INFO] [stderr]    |
[INFO] [stderr] 28 |         enum Colors {
[INFO] [stderr]    |              ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Types` is never used
[INFO] [stderr]   --> src/control_flow.rs:34:14
[INFO] [stderr]    |
[INFO] [stderr] 34 |         enum Types {
[INFO] [stderr]    |              ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `lifetime_syntax` is never used
[INFO] [stderr]    --> src/ownership_and_borrowing.rs:135:8
[INFO] [stderr]     |
[INFO] [stderr] 135 |     fn lifetime_syntax<'a, 'b>(p1: &'a i32, ps2: i32, p3: &'b f64) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `name` is never read
[INFO] [stderr]  --> src/data_structures_and_traits.rs:8:9
[INFO] [stderr]   |
[INFO] [stderr] 7 |     struct Waypoint {
[INFO] [stderr]   |            -------- field in this struct
[INFO] [stderr] 8 |         name: String,
[INFO] [stderr]   |         ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `NdbNavAid` is never constructed
[INFO] [stderr]   --> src/generics.rs:11:16
[INFO] [stderr]    |
[INFO] [stderr] 11 |         struct NdbNavAid {
[INFO] [stderr]    |                ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `VorNavAid` is never constructed
[INFO] [stderr]   --> src/generics.rs:15:16
[INFO] [stderr]    |
[INFO] [stderr] 15 |         struct VorNavAid {
[INFO] [stderr]    |                ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: fields `name`, `frequency`, and `data` are never read
[INFO] [stderr]   --> src/generics.rs:23:13
[INFO] [stderr]    |
[INFO] [stderr] 22 |         struct NavAid<T, U> {
[INFO] [stderr]    |                ------ fields in this struct
[INFO] [stderr] 23 |             name: String,
[INFO] [stderr]    |             ^^^^
[INFO] [stderr] 24 |             frequency: T,
[INFO] [stderr]    |             ^^^^^^^^^
[INFO] [stderr] 25 |             data: U
[INFO] [stderr]    |             ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `NavAid` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: function `lifetime` is never used
[INFO] [stderr]   --> src/generics.rs:59:12
[INFO] [stderr]    |
[INFO] [stderr] 59 |         fn lifetime<'a>(p1: &'a i32) {}
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `generic` is never used
[INFO] [stderr]   --> src/generics.rs:60:12
[INFO] [stderr]    |
[INFO] [stderr] 60 |         fn generic<T>(p1: T) {}
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `add_or_multiply` is never used
[INFO] [stderr]    --> src/generics.rs:106:12
[INFO] [stderr]     |
[INFO] [stderr] 106 |         fn add_or_multiply<T>(operand1: T, operand2: T) -> T
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: module `DataTypesAndModules` should have a snake case name
[INFO] [stderr]  --> src/data_types_and_variables.rs:6:9
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub mod DataTypesAndModules {
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `data_types_and_modules`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: module `StringsAndStringSlices` should have a snake case name
[INFO] [stderr]   --> src/strings_and_slices.rs:13:9
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub mod StringsAndStringSlices {
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `strings_and_string_slices`
[INFO] [stderr] 
[INFO] [stderr] warning: module `NumbersAndVariables` should have a snake case name
[INFO] [stderr]  --> src/number_variables.rs:4:9
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub mod NumbersAndVariables {
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `numbers_and_variables`
[INFO] [stderr] 
[INFO] [stderr] warning: module `LanguageOperators` should have a snake case name
[INFO] [stderr]  --> src/language_operators.rs:4:9
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub mod LanguageOperators {
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `language_operators`
[INFO] [stderr] 
[INFO] [stderr] warning: module `ProjectV1` should have a snake case name
[INFO] [stderr]  --> src/project.rs:2:9
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub mod ProjectV1 {
[INFO] [stderr]   |         ^^^^^^^^^ help: convert the identifier to snake case: `project_v1`
[INFO] [stderr] 
[INFO] [stderr] warning: module `ProjectV2` should have a snake case name
[INFO] [stderr]   --> src/project.rs:27:9
[INFO] [stderr]    |
[INFO] [stderr] 27 | pub mod ProjectV2 {
[INFO] [stderr]    |         ^^^^^^^^^ help: convert the identifier to snake case: `project_v2`
[INFO] [stderr] 
[INFO] [stderr] warning: module `ControlFlow` should have a snake case name
[INFO] [stderr]  --> src/control_flow.rs:2:9
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub mod ControlFlow {
[INFO] [stderr]   |         ^^^^^^^^^^^ help: convert the identifier to snake case: `control_flow`
[INFO] [stderr] 
[INFO] [stderr] warning: module `OwnershipAndBorrowing` should have a snake case name
[INFO] [stderr]  --> src/ownership_and_borrowing.rs:5:9
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub mod OwnershipAndBorrowing {
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `ownership_and_borrowing`
[INFO] [stderr] 
[INFO] [stderr] warning: module `FunctionsDefinitions` should have a snake case name
[INFO] [stderr]  --> src/functions_definitions.rs:2:9
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub mod FunctionsDefinitions {
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `functions_definitions`
[INFO] [stderr] 
[INFO] [stderr] warning: module `ErrorHandling` should have a snake case name
[INFO] [stderr]  --> src/error_handling.rs:2:9
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub mod ErrorHandling {
[INFO] [stderr]   |         ^^^^^^^^^^^^^ help: convert the identifier to snake case: `error_handling`
[INFO] [stderr] 
[INFO] [stderr] warning: module `StructsAndImpls` should have a snake case name
[INFO] [stderr]  --> src/data_structures_and_traits.rs:2:9
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub mod StructsAndImpls {
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `structs_and_impls`
[INFO] [stderr] 
[INFO] [stderr] warning: module `Traits` should have a snake case name
[INFO] [stderr]   --> src/data_structures_and_traits.rs:80:9
[INFO] [stderr]    |
[INFO] [stderr] 80 | pub mod Traits {
[INFO] [stderr]    |         ^^^^^^ help: convert the identifier to snake case: `traits`
[INFO] [stderr] 
[INFO] [stderr] warning: module `Collections` should have a snake case name
[INFO] [stderr]  --> src/collections.rs:2:9
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub mod Collections {
[INFO] [stderr]   |         ^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `collections`
[INFO] [stderr] 
[INFO] [stderr] warning: module `Generics` should have a snake case name
[INFO] [stderr]  --> src/generics.rs:2:9
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub mod Generics {
[INFO] [stderr]   |         ^^^^^^^^ help: convert the identifier to snake case: `generics`
[INFO] [stderr] 
[INFO] [stderr] warning: module `Concurrency` should have a snake case name
[INFO] [stderr]  --> src/concurrency.rs:7:9
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub mod Concurrency {
[INFO] [stderr]   |         ^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `concurrency`
[INFO] [stderr] 
[INFO] [stderr] warning: module `Calculations` should have a snake case name
[INFO] [stderr]  --> src/geo.rs:2:9
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub mod Calculations {
[INFO] [stderr]   |         ^^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `calculations`
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-fundamentals` (bin "rust-fundamentals" test) generated 30 warnings (run `cargo fix --bin "rust-fundamentals" --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_fundamentals-3102594be7a6c096)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0de39912b1586c34ed72f57788ea02e7b1dcada1bf61885edc776c1b0ea10214", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0de39912b1586c34ed72f57788ea02e7b1dcada1bf61885edc776c1b0ea10214", kill_on_drop: false }`
[INFO] [stdout] 0de39912b1586c34ed72f57788ea02e7b1dcada1bf61885edc776c1b0ea10214