[INFO] cloning repository https://github.com/taller-1-fiuba-rust/clases_practicas
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/taller-1-fiuba-rust/clases_practicas" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftaller-1-fiuba-rust%2Fclases_practicas", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftaller-1-fiuba-rust%2Fclases_practicas'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] aab27ea1f9459c24030c7b1f1d83210dadad5c18
[INFO] testing taller-1-fiuba-rust/clases_practicas against 1.98.0-beta.1 for beta-1.98-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftaller-1-fiuba-rust%2Fclases_practicas" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/taller-1-fiuba-rust/clases_practicas
[INFO] finished tweaking git repo https://github.com/taller-1-fiuba-rust/clases_practicas
[INFO] tweaked toml for git repo https://github.com/taller-1-fiuba-rust/clases_practicas written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/taller-1-fiuba-rust/clases_practicas on toolchain 1.98.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.98.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/taller-1-fiuba-rust/clases_practicas 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" "+1.98.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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] 832b286d0415ad6309f4db5997a1a404cf645bfdfa5626dbc748f30cc65adde9
[INFO] running `Command { std: "docker" "start" "832b286d0415ad6309f4db5997a1a404cf645bfdfa5626dbc748f30cc65adde9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "832b286d0415ad6309f4db5997a1a404cf645bfdfa5626dbc748f30cc65adde9", 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" "832b286d0415ad6309f4db5997a1a404cf645bfdfa5626dbc748f30cc65adde9" "/opt/rustwide/cargo-home/bin/cargo" "+1.98.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "832b286d0415ad6309f4db5997a1a404cf645bfdfa5626dbc748f30cc65adde9", 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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "832b286d0415ad6309f4db5997a1a404cf645bfdfa5626dbc748f30cc65adde9" "/opt/rustwide/cargo-home/bin/cargo" "+1.98.0-beta.1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr] warning: output filename collision at /opt/rustwide/target/debug/rc
[INFO] [stderr]   |
[INFO] [stderr]   = note: the bin target `rc` in package `clase3 v0.1.0 (/opt/rustwide/workdir/clases/clase3)` has the same output filename as the bin target `rc` in package `clase2 v0.1.0 (/opt/rustwide/workdir/clases/clase2)`
[INFO] [stderr]   = note: this may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>
[INFO] [stderr]   = help: consider changing their names to be unique or compiling them separately
[INFO] [stderr] warning: output filename collision at /opt/rustwide/target/debug/rc.dwp
[INFO] [stderr]   |
[INFO] [stderr]   = note: the bin target `rc` in package `clase3 v0.1.0 (/opt/rustwide/workdir/clases/clase3)` has the same output filename as the bin target `rc` in package `clase2 v0.1.0 (/opt/rustwide/workdir/clases/clase2)`
[INFO] [stderr]   = note: this may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>
[INFO] [stderr]   = help: consider changing their names to be unique or compiling them separately
[INFO] [stderr]    Compiling libc v0.2.159
[INFO] [stderr]    Compiling serde_derive v1.0.162
[INFO] [stderr]    Compiling serde v1.0.162
[INFO] [stderr]    Compiling smallvec v1.10.0
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling winnow v0.4.6
[INFO] [stderr]    Compiling once_cell v1.17.1
[INFO] [stderr]    Compiling target-lexicon v0.12.7
[INFO] [stderr]    Compiling version-compare v0.1.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling futures-io v0.3.28
[INFO] [stderr]    Compiling xml-rs v0.8.22
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling libloading v0.8.5
[INFO] [stderr]    Compiling wayland-sys v0.29.5
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling crossbeam-utils v0.8.20
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling anyhow v1.0.71
[INFO] [stderr]    Compiling event-listener v2.5.3
[INFO] [stderr]    Compiling cfg_aliases v0.1.1
[INFO] [stderr]    Compiling slotmap v1.0.7
[INFO] [stderr]    Compiling dlib v0.5.2
[INFO] [stderr]    Compiling ttf-parser v0.24.1
[INFO] [stderr]    Compiling fastrand v2.1.1
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[INFO] [stderr]    Compiling fastrand v1.9.0
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[INFO] [stderr]    Compiling async-lock v2.8.0
[INFO] [stderr]    Compiling concurrent-queue v2.5.0
[INFO] [stderr]    Compiling futures-lite v1.13.0
[INFO] [stderr]    Compiling cfg-expr v0.15.1
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stderr]    Compiling fdeflate v0.3.5
[INFO] [stderr]    Compiling tracing-core v0.1.32
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling smithay-client-toolkit v0.16.1
[INFO] [stderr]    Compiling syn v2.0.79
[INFO] [stderr]    Compiling wayland-scanner v0.29.5
[INFO] [stderr]    Compiling flate2 v1.0.34
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling polling v2.8.0
[INFO] [stderr]    Compiling x11-dl v2.21.0
[INFO] [stderr]    Compiling nix v0.24.3
[INFO] [stderr]    Compiling nix v0.25.1
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling rustix v0.37.27
[INFO] [stderr]    Compiling xcursor v0.3.8
[INFO] [stderr]    Compiling regex-syntax v0.7.5
[INFO] [stderr]    Compiling piper v0.2.4
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling png v0.17.14
[INFO] [stderr]    Compiling memmap2 v0.5.10
[INFO] [stderr]    Compiling async-channel v1.9.0
[INFO] [stderr]    Compiling async-fs v1.6.0
[INFO] [stderr]    Compiling async-io v1.13.0
[INFO] [stderr]    Compiling linux-raw-sys v0.3.8
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling socket2 v0.4.10
[INFO] [stderr]    Compiling futures-lite v2.3.0
[INFO] [stderr]    Compiling wayland-client v0.29.5
[INFO] [stderr]    Compiling wayland-protocols v0.29.5
[INFO] [stderr]    Compiling ahash v0.8.6
[INFO] [stderr]    Compiling accesskit v0.11.2
[INFO] [stderr]    Compiling gio v0.17.9
[INFO] [stderr]    Compiling cpufeatures v0.2.14
[INFO] [stderr]    Compiling sha1 v0.10.6
[INFO] [stderr]    Compiling parking_lot v0.12.3
[INFO] [stderr]    Compiling winit v0.28.7
[INFO] [stderr]    Compiling nix v0.26.4
[INFO] [stderr]    Compiling xdg-home v1.3.0
[INFO] [stderr]    Compiling regex-automata v0.3.7
[INFO] [stderr]    Compiling async-broadcast v0.5.1
[INFO] [stderr]    Compiling wayland-commons v0.29.5
[INFO] [stderr]    Compiling owned_ttf_parser v0.24.0
[INFO] [stderr]    Compiling ab_glyph v0.2.28
[INFO] [stderr]    Compiling async-executor v1.13.1
[INFO] [stderr]    Compiling ordered-stream v0.2.0
[INFO] [stderr]    Compiling rustix v0.38.37
[INFO] [stderr]    Compiling unicode-normalization v0.1.24
[INFO] [stderr]    Compiling glutin_egl_sys v0.5.1
[INFO] [stderr]    Compiling glutin_glx_sys v0.4.0
[INFO] [stderr]    Compiling mio v0.8.11
[INFO] [stderr]    Compiling wayland-sys v0.30.1
[INFO] [stderr]    Compiling instant v0.1.13
[INFO] [stderr]    Compiling memoffset v0.8.0
[INFO] [stderr]    Compiling bitflags v2.6.0
[INFO] [stderr]    Compiling nohash-hasher v0.2.0
[INFO] [stderr]    Compiling linux-raw-sys v0.4.14
[INFO] [stderr]    Compiling idna v0.5.0
[INFO] [stderr]    Compiling field-offset v0.3.5
[INFO] [stderr]    Compiling accesskit_consumer v0.15.2
[INFO] [stderr]    Compiling glutin v0.30.10
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling x11rb-protocol v0.13.1
[INFO] [stderr]    Compiling glutin-winit v0.3.0
[INFO] [stderr]    Compiling gtk v0.17.1
[INFO] [stderr]    Compiling libloading v0.7.4
[INFO] [stderr]    Compiling home v0.5.9
[INFO] [stderr]    Compiling wayland-cursor v0.29.5
[INFO] [stderr]    Compiling url v2.5.2
[INFO] [stderr]    Compiling glow v0.12.3
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling clase1 v0.1.0 (/opt/rustwide/workdir/clases/clase1)
[INFO] [stdout] warning: unused import: `crate::saludar::saludar_nombre`
[INFO] [stdout]  --> clases/clase1/src/iteraciones.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::saludar::saludar_nombre;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling clase4 v0.1.0 (/opt/rustwide/workdir/clases/clase4)
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> clases/clase1/src/builder_helados.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | impl Helado {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 33 |     pub fn new(recipiente: Recipiente, gustos: Vec<Gusto>, cucharita: bool) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `HeladoBuilder` is never constructed
[INFO] [stdout]   --> clases/clase1/src/builder_helados.rs:44:8
[INFO] [stdout]    |
[INFO] [stdout] 44 | struct HeladoBuilder {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `build`, `with_recipiente`, `with_cucharita`, and `add_gusto` are never used
[INFO] [stdout]   --> clases/clase1/src/builder_helados.rs:53:12
[INFO] [stdout]    |
[INFO] [stdout] 50 | impl HeladoBuilder {
[INFO] [stdout]    | ------------------ associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 53 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 69 |     pub fn build(self) -> Helado {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 73 |     pub fn with_recipiente(mut self, recipiente: Recipiente) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 78 |     pub fn with_cucharita(mut self, cucharita: bool) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 83 |     pub fn add_gusto(mut self, gusto: Gusto) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Coord` is never constructed
[INFO] [stdout]  --> clases/clase1/src/coordenada.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Coord {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `modulo` are never used
[INFO] [stdout]   --> clases/clase1/src/coordenada.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout]  9 | impl Coord {
[INFO] [stdout]    | ---------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 12 |     pub fn new(x: i32, y: i32) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     pub fn modulo(&self) -> f32 {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TcpStream`
[INFO] [stdout]  --> clases/clase4/src/01_bin_protocol_srv.rs:7:29
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::net::{TcpListener, TcpStream};
[INFO] [stdout]   |                             ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `nombre` and `padron` are never read
[INFO] [stdout]  --> clases/clase4/src/alumno.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Alumno {
[INFO] [stdout]   |            ------ fields in this struct
[INFO] [stdout] 5 |     pub nombre: String,
[INFO] [stdout]   |         ^^^^^^
[INFO] [stdout] 6 |     pub padron: u32
[INFO] [stdout]   |         ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Alumno` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `write_to` is never used
[INFO] [stdout]   --> clases/clase4/src/alumno.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout]  9 | impl Alumno {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] 10 |     pub fn write_to(&self, stream: &mut dyn Write) -> std::io::Result<()> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling regex v1.9.4
[INFO] [stderr]    Compiling webbrowser v0.8.15
[INFO] [stderr]    Compiling clase3 v0.1.0 (/opt/rustwide/workdir/clases/clase3)
[INFO] [stdout] warning: enum `Carrera` is never used
[INFO] [stdout]  --> clases/clase1/src/correlativas.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum Carrera {
[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 `print_correlativas` is never used
[INFO] [stdout]   --> clases/clase1/src/correlativas.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn print_correlativas(carrera: &Carrera) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `saludar` is never used
[INFO] [stdout]  --> clases/clase1/src/saludar.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn saludar() {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `read_from` is never used
[INFO] [stdout]   --> clases/clase4/src/alumno.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout]  9 | impl Alumno {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 22 |     pub fn read_from(stream: &mut dyn Read) -> std::io::Result<Alumno> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling clase2 v0.1.0 (/opt/rustwide/workdir/clases/clase2)
[INFO] [stdout] warning: unused variable: `nombre_contador_ref`
[INFO] [stdout]    --> clases/clase2/src/scopes.rs:105:9
[INFO] [stdout]     |
[INFO] [stdout] 105 |     let nombre_contador_ref = &contador_mut.clave;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_nombre_contador_ref`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `m`
[INFO] [stdout]    --> clases/clase2/src/scopes.rs:107:9
[INFO] [stdout]     |
[INFO] [stdout] 107 |     let m = contador_mut.valor + 3;
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_m`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `borrow_vector` is never used
[INFO] [stdout]   --> clases/clase2/src/scopes.rs:38:4
[INFO] [stdout]    |
[INFO] [stdout] 38 | fn borrow_vector() {
[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 `borrow_vector_mut` is never used
[INFO] [stdout]   --> clases/clase2/src/scopes.rs:53:4
[INFO] [stdout]    |
[INFO] [stdout] 53 | fn borrow_vector_mut() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `syn` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.98.0-beta.1-x86_64-unknown-linux-gnu/bin/rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-1.0.109/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="fold"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("clone-impls", "default", "derive", "extra-traits", "fold", "full", "parsing", "printing", "proc-macro", "quote", "test", "visit", "visit-mut"))' -C metadata=f5f3a71a73001d69 -C extra-filename=-5d0be42c5f27fbd2 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-dd25c742a80c04f7.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-47a30e7e7b176646.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-a4533bc942190936.rmeta --cap-lints allow --cap-lints=warn --cfg syn_disable_nightly_tests` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "832b286d0415ad6309f4db5997a1a404cf645bfdfa5626dbc748f30cc65adde9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "832b286d0415ad6309f4db5997a1a404cf645bfdfa5626dbc748f30cc65adde9", kill_on_drop: false }`
[INFO] [stdout] 832b286d0415ad6309f4db5997a1a404cf645bfdfa5626dbc748f30cc65adde9
