[INFO] cloning repository https://github.com/diegoxxc14/rust_basics
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/diegoxxc14/rust_basics" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdiegoxxc14%2Frust_basics", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdiegoxxc14%2Frust_basics'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7013103eedf3b905c12ce8494e16691fa3c9d353
[INFO] checking diegoxxc14/rust_basics against df1ae0f7dd168513de2d89beb2cb7a95d4fdc118 for pr-159343-retry
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdiegoxxc14%2Frust_basics" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/diegoxxc14/rust_basics
[INFO] finished tweaking git repo https://github.com/diegoxxc14/rust_basics
[INFO] tweaked toml for git repo https://github.com/diegoxxc14/rust_basics written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/diegoxxc14/rust_basics on toolchain df1ae0f7dd168513de2d89beb2cb7a95d4fdc118
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+df1ae0f7dd168513de2d89beb2cb7a95d4fdc118" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/diegoxxc14/rust_basics 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" "+df1ae0f7dd168513de2d89beb2cb7a95d4fdc118" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3d5ced03c013a94a2f102a4510f48a6e9184255caf5fd8244f58017bde7f5210" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 19bda01d9948533742e26edcc1032e026b5331ba065778c19316c966ef5208c8
[INFO] running `Command { std: "docker" "start" "19bda01d9948533742e26edcc1032e026b5331ba065778c19316c966ef5208c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "19bda01d9948533742e26edcc1032e026b5331ba065778c19316c966ef5208c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "19bda01d9948533742e26edcc1032e026b5331ba065778c19316c966ef5208c8" "/opt/rustwide/cargo-home/bin/cargo" "+df1ae0f7dd168513de2d89beb2cb7a95d4fdc118" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "19bda01d9948533742e26edcc1032e026b5331ba065778c19316c966ef5208c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "19bda01d9948533742e26edcc1032e026b5331ba065778c19316c966ef5208c8" "/opt/rustwide/cargo-home/bin/cargo" "+df1ae0f7dd168513de2d89beb2cb7a95d4fdc118" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking exercise v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `state`
[INFO] [stdout]   --> src/types_values.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |     let state = true;
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_state`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]   --> src/types_values.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 55 |     let name = "Diego Cuenca";
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `valor`
[INFO] [stdout]   --> src/types_values.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |     let valor = 23.32;
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_valor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/flow_control.rs:118:13
[INFO] [stdout]     |
[INFO] [stdout] 118 | fn fizzbuzz(n: u32) -> u32 {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `variables` is never used
[INFO] [stdout]  --> src/types_values.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn variables() {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `interproduct` is never used
[INFO] [stdout]   --> src/types_values.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn interproduct(a:i32, b:i32, c:i32) -> i32 {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `strings_demo` is never used
[INFO] [stdout]   --> src/types_values.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub fn strings_demo() {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `takes_u32` is never used
[INFO] [stdout]   --> src/types_values.rs:42:4
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn takes_u32(x: u32) {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `takes_i8` is never used
[INFO] [stdout]   --> src/types_values.rs:46:4
[INFO] [stdout]    |
[INFO] [stdout] 46 | fn takes_i8(y: i8) {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `types_inference` is never used
[INFO] [stdout]   --> src/types_values.rs:50:8
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub fn types_inference(){
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fib` is never used
[INFO] [stdout]   --> src/types_values.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub fn fib(n: u32) -> u32 {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `message` is never used
[INFO] [stdout]   --> src/types_values.rs:73:8
[INFO] [stdout]    |
[INFO] [stdout] 73 | pub fn message(message:&str) -> &str{
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `conditionals` is never used
[INFO] [stdout]  --> src/flow_control.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn conditionals(){
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bucles` is never used
[INFO] [stdout]   --> src/flow_control.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub fn bucles(){
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bucles2` is never used
[INFO] [stdout]   --> src/flow_control.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub fn bucles2(){
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bucles3` is never used
[INFO] [stdout]   --> src/flow_control.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub fn bucles3(){
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bloques` is never used
[INFO] [stdout]   --> src/flow_control.rs:78:8
[INFO] [stdout]    |
[INFO] [stdout] 78 | pub fn bloques(){
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `ambitos_var` is never used
[INFO] [stdout]   --> src/flow_control.rs:91:8
[INFO] [stdout]    |
[INFO] [stdout] 91 | pub fn ambitos_var(){
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `factorial` is never used
[INFO] [stdout]    --> src/flow_control.rs:110:8
[INFO] [stdout]     |
[INFO] [stdout] 110 | pub fn factorial(n: u32) -> u32 {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fizzbuzz` is never used
[INFO] [stdout]    --> src/flow_control.rs:118:4
[INFO] [stdout]     |
[INFO] [stdout] 118 | fn fizzbuzz(n: u32) -> u32 {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `collatz_length` is never used
[INFO] [stdout]    --> src/flow_control.rs:123:8
[INFO] [stdout]     |
[INFO] [stdout] 123 | pub fn collatz_length(mut n: i32) -> i32 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/flow_control.rs:135:6
[INFO] [stdout]     |
[INFO] [stdout] 135 |   fn main() {
[INFO] [stdout]     |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `tuples_arrays` is never used
[INFO] [stdout]  --> src/tuples_arrays.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn tuples_arrays(){
[INFO] [stdout]   |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `state`
[INFO] [stdout]   --> src/types_values.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |     let state = true;
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_state`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]   --> src/types_values.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 55 |     let name = "Diego Cuenca";
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `valor`
[INFO] [stdout]   --> src/types_values.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |     let valor = 23.32;
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_valor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/flow_control.rs:118:13
[INFO] [stdout]     |
[INFO] [stdout] 118 | fn fizzbuzz(n: u32) -> u32 {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `variables` is never used
[INFO] [stdout]  --> src/types_values.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn variables() {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `interproduct` is never used
[INFO] [stdout]   --> src/types_values.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn interproduct(a:i32, b:i32, c:i32) -> i32 {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `strings_demo` is never used
[INFO] [stdout]   --> src/types_values.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub fn strings_demo() {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `takes_u32` is never used
[INFO] [stdout]   --> src/types_values.rs:42:4
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn takes_u32(x: u32) {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `takes_i8` is never used
[INFO] [stdout]   --> src/types_values.rs:46:4
[INFO] [stdout]    |
[INFO] [stdout] 46 | fn takes_i8(y: i8) {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `types_inference` is never used
[INFO] [stdout]   --> src/types_values.rs:50:8
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub fn types_inference(){
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fib` is never used
[INFO] [stdout]   --> src/types_values.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub fn fib(n: u32) -> u32 {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `message` is never used
[INFO] [stdout]   --> src/types_values.rs:73:8
[INFO] [stdout]    |
[INFO] [stdout] 73 | pub fn message(message:&str) -> &str{
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `conditionals` is never used
[INFO] [stdout]  --> src/flow_control.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn conditionals(){
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bucles` is never used
[INFO] [stdout]   --> src/flow_control.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub fn bucles(){
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bucles2` is never used
[INFO] [stdout]   --> src/flow_control.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub fn bucles2(){
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bucles3` is never used
[INFO] [stdout]   --> src/flow_control.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub fn bucles3(){
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bloques` is never used
[INFO] [stdout]   --> src/flow_control.rs:78:8
[INFO] [stdout]    |
[INFO] [stdout] 78 | pub fn bloques(){
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `ambitos_var` is never used
[INFO] [stdout]   --> src/flow_control.rs:91:8
[INFO] [stdout]    |
[INFO] [stdout] 91 | pub fn ambitos_var(){
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `factorial` is never used
[INFO] [stdout]    --> src/flow_control.rs:110:8
[INFO] [stdout]     |
[INFO] [stdout] 110 | pub fn factorial(n: u32) -> u32 {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fizzbuzz` is never used
[INFO] [stdout]    --> src/flow_control.rs:118:4
[INFO] [stdout]     |
[INFO] [stdout] 118 | fn fizzbuzz(n: u32) -> u32 {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `collatz_length` is never used
[INFO] [stdout]    --> src/flow_control.rs:123:8
[INFO] [stdout]     |
[INFO] [stdout] 123 | pub fn collatz_length(mut n: i32) -> i32 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/flow_control.rs:135:6
[INFO] [stdout]     |
[INFO] [stdout] 135 |   fn main() {
[INFO] [stdout]     |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `tuples_arrays` is never used
[INFO] [stdout]  --> src/tuples_arrays.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn tuples_arrays(){
[INFO] [stdout]   |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "19bda01d9948533742e26edcc1032e026b5331ba065778c19316c966ef5208c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19bda01d9948533742e26edcc1032e026b5331ba065778c19316c966ef5208c8", kill_on_drop: false }`
[INFO] [stdout] 19bda01d9948533742e26edcc1032e026b5331ba065778c19316c966ef5208c8