[INFO] cloning repository https://github.com/mikesneider/RustGetstarted
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mikesneider/RustGetstarted" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmikesneider%2FRustGetstarted", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmikesneider%2FRustGetstarted'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d06af7c33fea58e09eb9d147761830a176ffd3a9
[INFO] testing mikesneider/RustGetstarted against 1.83.0 for beta-1.84.0-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmikesneider%2FRustGetstarted" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mikesneider/RustGetstarted on toolchain 1.83.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.83.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mikesneider/RustGetstarted
[INFO] finished tweaking git repo https://github.com/mikesneider/RustGetstarted
[INFO] tweaked toml for git repo https://github.com/mikesneider/RustGetstarted written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/mikesneider/RustGetstarted 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" "+1.83.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c093095689ccf00f63007ebaf74fce182f30c347c04345218eb17287a7d4bdf8
[INFO] running `Command { std: "docker" "start" "-a" "c093095689ccf00f63007ebaf74fce182f30c347c04345218eb17287a7d4bdf8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c093095689ccf00f63007ebaf74fce182f30c347c04345218eb17287a7d4bdf8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c093095689ccf00f63007ebaf74fce182f30c347c04345218eb17287a7d4bdf8", kill_on_drop: false }`
[INFO] [stdout] c093095689ccf00f63007ebaf74fce182f30c347c04345218eb17287a7d4bdf8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e56598db9f7a0c5aec6e4b0a743bc2bfd72fb68d9bf53166c4483981abbe8a96
[INFO] running `Command { std: "docker" "start" "-a" "e56598db9f7a0c5aec6e4b0a743bc2bfd72fb68d9bf53166c4483981abbe8a96", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling getrandom v0.2.4
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling Hola_cargo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: crate `Hola_cargo` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = help: convert the identifier to snake case: `hola_cargo`
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `contadores` should have an upper camel case name
[INFO] [stdout]   --> src/fifth.rs:11:6
[INFO] [stdout]    |
[INFO] [stdout] 11 | enum contadores {
[INFO] [stdout]    |      ^^^^^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Contadores`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `v1` should have an upper camel case name
[INFO] [stdout]   --> src/fifth.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     v1(String),
[INFO] [stdout]    |     ^^ help: convert the identifier to upper camel case (notice the capitalization): `V1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `v10` should have an upper camel case name
[INFO] [stdout]   --> src/fifth.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     v10(String),
[INFO] [stdout]    |     ^^^ help: convert the identifier to upper camel case (notice the capitalization): `V10`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `v20` should have an upper camel case name
[INFO] [stdout]   --> src/fifth.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     v20(u32)
[INFO] [stdout]    |     ^^^ help: convert the identifier to upper camel case (notice the capitalization): `V20`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/fifth.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 61 |         (self.sign_in_count + elnuevo + otro.sign_in_count)
[INFO] [stdout]    |         ^                                                 ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 61 -         (self.sign_in_count + elnuevo + otro.sign_in_count)
[INFO] [stdout] 61 +         self.sign_in_count + elnuevo + otro.sign_in_count
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/fifth.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 65 |     (usuario.sign_in_count + elnuevo)
[INFO] [stdout]    |     ^                               ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 65 -     (usuario.sign_in_count + elnuevo)
[INFO] [stdout] 65 +     usuario.sign_in_count + elnuevo
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/third.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let mut a1 = String::from("Mike");
[INFO] [stdout]   |         ----^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/third.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let mut a3 = a2.clone();
[INFO] [stdout]   |         ----^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `some_text`
[INFO] [stdout]   --> src/fifth.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let some_text = Some("MIke");
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_some_text`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vec1`
[INFO] [stdout]  --> src/nine.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let vec1:Vec<u32> = vec![1,2,3];
[INFO] [stdout]   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_vec1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `primera_clase` is never used
[INFO] [stdout]   --> src/main.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn primera_clase(){
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/sencond.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn main() {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sumame` is never used
[INFO] [stdout]   --> src/sencond.rs:32:4
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn sumame(x: u32)->u32{
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mainloop` is never used
[INFO] [stdout]   --> src/sencond.rs:38:4
[INFO] [stdout]    |
[INFO] [stdout] 38 | fn mainloop() {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `miwhile` is never used
[INFO] [stdout]   --> src/sencond.rs:59:4
[INFO] [stdout]    |
[INFO] [stdout] 59 | fn miwhile(){
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/third.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn main(){
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calculate_length` is never used
[INFO] [stdout]   --> src/third.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn calculate_length(s: String) -> (String, usize, u8) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/forth.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn main() {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parteme_palabra` is never used
[INFO] [stdout]   --> src/forth.rs:21:4
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn parteme_palabra(s: &String, desde: usize, hasta: usize) -> &str {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_type_of` is never used
[INFO] [stdout]   --> src/forth.rs:24:4
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn print_type_of<T>(_: &T) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `first_word` is never used
[INFO] [stdout]   --> src/forth.rs:27:4
[INFO] [stdout]    |
[INFO] [stdout] 27 | fn first_word(s: &String) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calculate_length` is never used
[INFO] [stdout]   --> src/forth.rs:40:4
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn calculate_length(s: &mut String) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `User` is never constructed
[INFO] [stdout]  --> src/fifth.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |  struct User {
[INFO] [stdout]   |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `contadores` is never used
[INFO] [stdout]   --> src/fifth.rs:11:6
[INFO] [stdout]    |
[INFO] [stdout] 11 | enum contadores {
[INFO] [stdout]    |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Option` is never used
[INFO] [stdout]   --> src/fifth.rs:18:6
[INFO] [stdout]    |
[INFO] [stdout] 18 | enum Option<T> {
[INFO] [stdout]    |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/fifth.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn main(){
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `cambiar2` is never used
[INFO] [stdout]   --> src/fifth.rs:60:8
[INFO] [stdout]    |
[INFO] [stdout] 59 | impl User{
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] 60 |     fn cambiar2(&self,otro: &User, elnuevo: u32) -> u32 {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cambiar_contador` is never used
[INFO] [stdout]   --> src/fifth.rs:64:4
[INFO] [stdout]    |
[INFO] [stdout] 64 | fn cambiar_contador(usuario: &User, elnuevo: u32) -> u32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `build_user` is never used
[INFO] [stdout]   --> src/fifth.rs:68:4
[INFO] [stdout]    |
[INFO] [stdout] 68 | fn build_user(email: String, username: String) -> User {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_type_of` is never used
[INFO] [stdout]   --> src/fifth.rs:82:4
[INFO] [stdout]    |
[INFO] [stdout] 82 | fn print_type_of<T>(_: &T) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Coin` is never used
[INFO] [stdout]  --> src/six_match.rs:3:6
[INFO] [stdout]   |
[INFO] [stdout] 3 | enum Coin {
[INFO] [stdout]   |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `value_in_cents` is never used
[INFO] [stdout]   --> src/six_match.rs:10:4
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn value_in_cents(coin: Coin) -> u8 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `plus_one` is never used
[INFO] [stdout]   --> src/six_match.rs:21:4
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn plus_one(x: Option<i32>) -> Option<i32> {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/six_match.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub fn main(){
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_type_of` is never used
[INFO] [stdout]   --> src/six_match.rs:55:4
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn print_type_of<T>(_: &T) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/seven_consice.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn main() {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/eight_crates.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn main(){
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.89s
[INFO] running `Command { std: "docker" "inspect" "e56598db9f7a0c5aec6e4b0a743bc2bfd72fb68d9bf53166c4483981abbe8a96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e56598db9f7a0c5aec6e4b0a743bc2bfd72fb68d9bf53166c4483981abbe8a96", kill_on_drop: false }`
[INFO] [stdout] e56598db9f7a0c5aec6e4b0a743bc2bfd72fb68d9bf53166c4483981abbe8a96
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 745a63dfe7f27f0d63a714535a241a3a4b5564413437ab9f7fc80cda6a9b1239
[INFO] running `Command { std: "docker" "start" "-a" "745a63dfe7f27f0d63a714535a241a3a4b5564413437ab9f7fc80cda6a9b1239", kill_on_drop: false }`
[INFO] [stderr]    Compiling Hola_cargo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: crate `Hola_cargo` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = help: convert the identifier to snake case: `hola_cargo`
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `contadores` should have an upper camel case name
[INFO] [stdout]   --> src/fifth.rs:11:6
[INFO] [stdout]    |
[INFO] [stdout] 11 | enum contadores {
[INFO] [stdout]    |      ^^^^^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Contadores`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `v1` should have an upper camel case name
[INFO] [stdout]   --> src/fifth.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     v1(String),
[INFO] [stdout]    |     ^^ help: convert the identifier to upper camel case (notice the capitalization): `V1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `v10` should have an upper camel case name
[INFO] [stdout]   --> src/fifth.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     v10(String),
[INFO] [stdout]    |     ^^^ help: convert the identifier to upper camel case (notice the capitalization): `V10`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `v20` should have an upper camel case name
[INFO] [stdout]   --> src/fifth.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     v20(u32)
[INFO] [stdout]    |     ^^^ help: convert the identifier to upper camel case (notice the capitalization): `V20`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/fifth.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 61 |         (self.sign_in_count + elnuevo + otro.sign_in_count)
[INFO] [stdout]    |         ^                                                 ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 61 -         (self.sign_in_count + elnuevo + otro.sign_in_count)
[INFO] [stdout] 61 +         self.sign_in_count + elnuevo + otro.sign_in_count
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/fifth.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 65 |     (usuario.sign_in_count + elnuevo)
[INFO] [stdout]    |     ^                               ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 65 -     (usuario.sign_in_count + elnuevo)
[INFO] [stdout] 65 +     usuario.sign_in_count + elnuevo
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/third.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let mut a1 = String::from("Mike");
[INFO] [stdout]   |         ----^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/third.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let mut a3 = a2.clone();
[INFO] [stdout]   |         ----^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `some_text`
[INFO] [stdout]   --> src/fifth.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let some_text = Some("MIke");
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_some_text`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vec1`
[INFO] [stdout]  --> src/nine.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let vec1:Vec<u32> = vec![1,2,3];
[INFO] [stdout]   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_vec1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `primera_clase` is never used
[INFO] [stdout]   --> src/main.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn primera_clase(){
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/sencond.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn main() {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sumame` is never used
[INFO] [stdout]   --> src/sencond.rs:32:4
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn sumame(x: u32)->u32{
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mainloop` is never used
[INFO] [stdout]   --> src/sencond.rs:38:4
[INFO] [stdout]    |
[INFO] [stdout] 38 | fn mainloop() {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `miwhile` is never used
[INFO] [stdout]   --> src/sencond.rs:59:4
[INFO] [stdout]    |
[INFO] [stdout] 59 | fn miwhile(){
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/third.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn main(){
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calculate_length` is never used
[INFO] [stdout]   --> src/third.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn calculate_length(s: String) -> (String, usize, u8) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/forth.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn main() {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parteme_palabra` is never used
[INFO] [stdout]   --> src/forth.rs:21:4
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn parteme_palabra(s: &String, desde: usize, hasta: usize) -> &str {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_type_of` is never used
[INFO] [stdout]   --> src/forth.rs:24:4
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn print_type_of<T>(_: &T) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `first_word` is never used
[INFO] [stdout]   --> src/forth.rs:27:4
[INFO] [stdout]    |
[INFO] [stdout] 27 | fn first_word(s: &String) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calculate_length` is never used
[INFO] [stdout]   --> src/forth.rs:40:4
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn calculate_length(s: &mut String) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `User` is never constructed
[INFO] [stdout]  --> src/fifth.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |  struct User {
[INFO] [stdout]   |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `contadores` is never used
[INFO] [stdout]   --> src/fifth.rs:11:6
[INFO] [stdout]    |
[INFO] [stdout] 11 | enum contadores {
[INFO] [stdout]    |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Option` is never used
[INFO] [stdout]   --> src/fifth.rs:18:6
[INFO] [stdout]    |
[INFO] [stdout] 18 | enum Option<T> {
[INFO] [stdout]    |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/fifth.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn main(){
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `cambiar2` is never used
[INFO] [stdout]   --> src/fifth.rs:60:8
[INFO] [stdout]    |
[INFO] [stdout] 59 | impl User{
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] 60 |     fn cambiar2(&self,otro: &User, elnuevo: u32) -> u32 {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cambiar_contador` is never used
[INFO] [stdout]   --> src/fifth.rs:64:4
[INFO] [stdout]    |
[INFO] [stdout] 64 | fn cambiar_contador(usuario: &User, elnuevo: u32) -> u32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `build_user` is never used
[INFO] [stdout]   --> src/fifth.rs:68:4
[INFO] [stdout]    |
[INFO] [stdout] 68 | fn build_user(email: String, username: String) -> User {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_type_of` is never used
[INFO] [stdout]   --> src/fifth.rs:82:4
[INFO] [stdout]    |
[INFO] [stdout] 82 | fn print_type_of<T>(_: &T) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Coin` is never used
[INFO] [stdout]  --> src/six_match.rs:3:6
[INFO] [stdout]   |
[INFO] [stdout] 3 | enum Coin {
[INFO] [stdout]   |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `value_in_cents` is never used
[INFO] [stdout]   --> src/six_match.rs:10:4
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn value_in_cents(coin: Coin) -> u8 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `plus_one` is never used
[INFO] [stdout]   --> src/six_match.rs:21:4
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn plus_one(x: Option<i32>) -> Option<i32> {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/six_match.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub fn main(){
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_type_of` is never used
[INFO] [stdout]   --> src/six_match.rs:55:4
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn print_type_of<T>(_: &T) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/seven_consice.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn main() {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/eight_crates.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn main(){
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "745a63dfe7f27f0d63a714535a241a3a4b5564413437ab9f7fc80cda6a9b1239", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "745a63dfe7f27f0d63a714535a241a3a4b5564413437ab9f7fc80cda6a9b1239", kill_on_drop: false }`
[INFO] [stdout] 745a63dfe7f27f0d63a714535a241a3a4b5564413437ab9f7fc80cda6a9b1239
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6152729a169e7456dc8bcce8045322cfca923472922f1d69c0deacd3e14c7e30
[INFO] running `Command { std: "docker" "start" "-a" "6152729a169e7456dc8bcce8045322cfca923472922f1d69c0deacd3e14c7e30", kill_on_drop: false }`
[INFO] [stderr] warning: crate `Hola_cargo` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = help: convert the identifier to snake case: `hola_cargo`
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `Hola_cargo` (lib) generated 1 warning
[INFO] [stderr] warning: type `contadores` should have an upper camel case name
[INFO] [stderr]   --> src/fifth.rs:11:6
[INFO] [stderr]    |
[INFO] [stderr] 11 | enum contadores {
[INFO] [stderr]    |      ^^^^^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Contadores`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant `v1` should have an upper camel case name
[INFO] [stderr]   --> src/fifth.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     v1(String),
[INFO] [stderr]    |     ^^ help: convert the identifier to upper camel case (notice the capitalization): `V1`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `v10` should have an upper camel case name
[INFO] [stderr]   --> src/fifth.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     v10(String),
[INFO] [stderr]    |     ^^^ help: convert the identifier to upper camel case (notice the capitalization): `V10`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `v20` should have an upper camel case name
[INFO] [stderr]   --> src/fifth.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     v20(u32)
[INFO] [stderr]    |     ^^^ help: convert the identifier to upper camel case (notice the capitalization): `V20`
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]   --> src/fifth.rs:61:9
[INFO] [stderr]    |
[INFO] [stderr] 61 |         (self.sign_in_count + elnuevo + otro.sign_in_count)
[INFO] [stderr]    |         ^                                                 ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 61 -         (self.sign_in_count + elnuevo + otro.sign_in_count)
[INFO] [stderr] 61 +         self.sign_in_count + elnuevo + otro.sign_in_count
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]   --> src/fifth.rs:65:5
[INFO] [stderr]    |
[INFO] [stderr] 65 |     (usuario.sign_in_count + elnuevo)
[INFO] [stderr]    |     ^                               ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 65 -     (usuario.sign_in_count + elnuevo)
[INFO] [stderr] 65 +     usuario.sign_in_count + elnuevo
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/third.rs:4:9
[INFO] [stderr]   |
[INFO] [stderr] 4 |     let mut a1 = String::from("Mike");
[INFO] [stderr]   |         ----^^
[INFO] [stderr]   |         |
[INFO] [stderr]   |         help: remove this `mut`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/third.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 |     let mut a3 = a2.clone();
[INFO] [stderr]   |         ----^^
[INFO] [stderr]   |         |
[INFO] [stderr]   |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `some_text`
[INFO] [stderr]   --> src/fifth.rs:25:9
[INFO] [stderr]    |
[INFO] [stderr] 25 |     let some_text = Some("MIke");
[INFO] [stderr]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_some_text`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vec1`
[INFO] [stderr]  --> src/nine.rs:4:9
[INFO] [stderr]   |
[INFO] [stderr] 4 |     let vec1:Vec<u32> = vec![1,2,3];
[INFO] [stderr]   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_vec1`
[INFO] [stderr] 
[INFO] [stderr] warning: function `primera_clase` is never used
[INFO] [stderr]   --> src/main.rs:28:8
[INFO] [stderr]    |
[INFO] [stderr] 28 |     fn primera_clase(){
[INFO] [stderr]    |        ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `main` is never used
[INFO] [stderr]  --> src/sencond.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn main() {
[INFO] [stderr]   |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `sumame` is never used
[INFO] [stderr]   --> src/sencond.rs:32:4
[INFO] [stderr]    |
[INFO] [stderr] 32 | fn sumame(x: u32)->u32{
[INFO] [stderr]    |    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `mainloop` is never used
[INFO] [stderr]   --> src/sencond.rs:38:4
[INFO] [stderr]    |
[INFO] [stderr] 38 | fn mainloop() {
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `miwhile` is never used
[INFO] [stderr]   --> src/sencond.rs:59:4
[INFO] [stderr]    |
[INFO] [stderr] 59 | fn miwhile(){
[INFO] [stderr]    |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `main` is never used
[INFO] [stderr]  --> src/third.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn main(){
[INFO] [stderr]   |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `calculate_length` is never used
[INFO] [stderr]   --> src/third.rs:14:4
[INFO] [stderr]    |
[INFO] [stderr] 14 | fn calculate_length(s: String) -> (String, usize, u8) {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `main` is never used
[INFO] [stderr]  --> src/forth.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn main() {
[INFO] [stderr]   |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `parteme_palabra` is never used
[INFO] [stderr]   --> src/forth.rs:21:4
[INFO] [stderr]    |
[INFO] [stderr] 21 | fn parteme_palabra(s: &String, desde: usize, hasta: usize) -> &str {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `print_type_of` is never used
[INFO] [stderr]   --> src/forth.rs:24:4
[INFO] [stderr]    |
[INFO] [stderr] 24 | fn print_type_of<T>(_: &T) {
[INFO] [stderr]    |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `first_word` is never used
[INFO] [stderr]   --> src/forth.rs:27:4
[INFO] [stderr]    |
[INFO] [stderr] 27 | fn first_word(s: &String) -> usize {
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `calculate_length` is never used
[INFO] [stderr]   --> src/forth.rs:40:4
[INFO] [stderr]    |
[INFO] [stderr] 40 | fn calculate_length(s: &mut String) -> usize {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `User` is never constructed
[INFO] [stderr]  --> src/fifth.rs:3:9
[INFO] [stderr]   |
[INFO] [stderr] 3 |  struct User {
[INFO] [stderr]   |         ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `contadores` is never used
[INFO] [stderr]   --> src/fifth.rs:11:6
[INFO] [stderr]    |
[INFO] [stderr] 11 | enum contadores {
[INFO] [stderr]    |      ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Option` is never used
[INFO] [stderr]   --> src/fifth.rs:18:6
[INFO] [stderr]    |
[INFO] [stderr] 18 | enum Option<T> {
[INFO] [stderr]    |      ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `main` is never used
[INFO] [stderr]   --> src/fifth.rs:22:8
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub fn main(){
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `cambiar2` is never used
[INFO] [stderr]   --> src/fifth.rs:60:8
[INFO] [stderr]    |
[INFO] [stderr] 59 | impl User{
[INFO] [stderr]    | --------- method in this implementation
[INFO] [stderr] 60 |     fn cambiar2(&self,otro: &User, elnuevo: u32) -> u32 {
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `cambiar_contador` is never used
[INFO] [stderr]   --> src/fifth.rs:64:4
[INFO] [stderr]    |
[INFO] [stderr] 64 | fn cambiar_contador(usuario: &User, elnuevo: u32) -> u32 {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `build_user` is never used
[INFO] [stderr]   --> src/fifth.rs:68:4
[INFO] [stderr]    |
[INFO] [stderr] 68 | fn build_user(email: String, username: String) -> User {
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `print_type_of` is never used
[INFO] [stderr]   --> src/fifth.rs:82:4
[INFO] [stderr]    |
[INFO] [stderr] 82 | fn print_type_of<T>(_: &T) {
[INFO] [stderr]    |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Coin` is never used
[INFO] [stderr]  --> src/six_match.rs:3:6
[INFO] [stderr]   |
[INFO] [stderr] 3 | enum Coin {
[INFO] [stderr]   |      ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `value_in_cents` is never used
[INFO] [stderr]   --> src/six_match.rs:10:4
[INFO] [stderr]    |
[INFO] [stderr] 10 | fn value_in_cents(coin: Coin) -> u8 {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `plus_one` is never used
[INFO] [stderr]   --> src/six_match.rs:21:4
[INFO] [stderr]    |
[INFO] [stderr] 21 | fn plus_one(x: Option<i32>) -> Option<i32> {
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `main` is never used
[INFO] [stderr]   --> src/six_match.rs:30:8
[INFO] [stderr]    |
[INFO] [stderr] 30 | pub fn main(){
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `print_type_of` is never used
[INFO] [stderr]   --> src/six_match.rs:55:4
[INFO] [stderr]    |
[INFO] [stderr] 55 | fn print_type_of<T>(_: &T) {
[INFO] [stderr]    |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `main` is never used
[INFO] [stderr]  --> src/seven_consice.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn main() {
[INFO] [stderr]   |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `main` is never used
[INFO] [stderr]  --> src/eight_crates.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn main(){
[INFO] [stderr]   |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `Hola_cargo` (bin "Hola_cargo" test) generated 37 warnings (run `cargo fix --bin "Hola_cargo" --tests` to apply 4 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/Hola_cargo-c031751e1dd20c44)
[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] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/Hola_cargo-5281beb2f896757b)
[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] [stderr]    Doc-tests Hola_cargo
[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" "6152729a169e7456dc8bcce8045322cfca923472922f1d69c0deacd3e14c7e30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6152729a169e7456dc8bcce8045322cfca923472922f1d69c0deacd3e14c7e30", kill_on_drop: false }`
[INFO] [stdout] 6152729a169e7456dc8bcce8045322cfca923472922f1d69c0deacd3e14c7e30