[INFO] cloning repository https://github.com/Alexandroskw/Filesystem
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Alexandroskw/Filesystem" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlexandroskw%2FFilesystem", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlexandroskw%2FFilesystem'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 61a4b03f5c530d253c751c85eb5d1c70795c5966
[INFO] testing Alexandroskw/Filesystem against master#733b47ea4b1b86216f14ef56e49440c33933f230+rustflags=-Copt-level=3 for pr-138759
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlexandroskw%2FFilesystem" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Alexandroskw/Filesystem
[INFO] finished tweaking git repo https://github.com/Alexandroskw/Filesystem
[INFO] tweaked toml for git repo https://github.com/Alexandroskw/Filesystem written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Alexandroskw/Filesystem on toolchain 733b47ea4b1b86216f14ef56e49440c33933f230
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Alexandroskw/Filesystem 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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3f760c1daaac3ae3faea7fd3ee4de0e8b888fec3d52edd54dae6dddd098c815f
[INFO] running `Command { std: "docker" "start" "-a" "3f760c1daaac3ae3faea7fd3ee4de0e8b888fec3d52edd54dae6dddd098c815f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3f760c1daaac3ae3faea7fd3ee4de0e8b888fec3d52edd54dae6dddd098c815f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f760c1daaac3ae3faea7fd3ee4de0e8b888fec3d52edd54dae6dddd098c815f", kill_on_drop: false }`
[INFO] [stdout] 3f760c1daaac3ae3faea7fd3ee4de0e8b888fec3d52edd54dae6dddd098c815f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=forbid -Copt-level=3" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] acb7c1dcc776f4af41d87a7945e8b356e6fb31d3ddc49354ec38c42b405c1dcc
[INFO] running `Command { std: "docker" "start" "-a" "acb7c1dcc776f4af41d87a7945e8b356e6fb31d3ddc49354ec38c42b405c1dcc", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro-hack-impl v0.4.3
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling proc-macro-hack v0.4.3
[INFO] [stderr]    Compiling structure-macro-impl v0.1.2
[INFO] [stderr]    Compiling structure v0.1.2
[INFO] [stderr]    Compiling prueba v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Path` and `self`
[INFO] [stdout]  --> src/main.rs:3:17
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::path::{Path, self};
[INFO] [stdout]   |                 ^^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:44:13
[INFO] [stdout]    |
[INFO] [stdout] 44 |         let mut entries = Vec::new();
[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: unused variable: `e`
[INFO] [stdout]   --> src/main.rs:53:46
[INFO] [stdout]    |
[INFO] [stdout] 53 |     let mut file = File::open(path).map_err(|e| format!("No se pudo montar: {}", path))?;           // Se da la ruta del sistema de archi...
[INFO] [stdout]    |                                              ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/main.rs:56:43
[INFO] [stdout]    |
[INFO] [stdout] 56 |     file.read_exact(&mut buffer).map_err(|e| format!("No se pudo montar: {}", path))?;              // Si no existe el superbloque lanza ...
[INFO] [stdout]    |                                           ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `fs_name`, `ver`, `vol_label`, `cluster_size`, `dir_cluster`, and `total_cluster` are never read
[INFO] [stdout]   --> src/main.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout] 7  | struct Superblock{          
[INFO] [stdout]    |        ---------- fields in this struct
[INFO] [stdout] 8  |     fs_name: String,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 9  |     ver: String,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 10 |     vol_label: String,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 11 |     cluster_size: u32,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 12 |     dir_cluster: u32,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 13 |     total_cluster: u32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Superblock` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DirectoryEntry` is never constructed
[INFO] [stdout]   --> src/main.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | struct DirectoryEntry{
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Filesystem` is never constructed
[INFO] [stdout]   --> src/main.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | struct Filesystem {superblock: Superblock}
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `read_cluster` and `list_files` are never used
[INFO] [stdout]   --> src/main.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | impl Filesystem {
[INFO] [stdout]    | --------------- methods in this implementation
[INFO] [stdout] 31 |     //función para leer los clusters
[INFO] [stdout] 32 |     fn read_cluster(&self, start_cluster: u32, num_clusters: u32) -> Result<Vec<u8>, String> {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 43 |     fn list_files(&self) -> Vec<DirectoryEntry> {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.57s
[INFO] running `Command { std: "docker" "inspect" "acb7c1dcc776f4af41d87a7945e8b356e6fb31d3ddc49354ec38c42b405c1dcc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "acb7c1dcc776f4af41d87a7945e8b356e6fb31d3ddc49354ec38c42b405c1dcc", kill_on_drop: false }`
[INFO] [stdout] acb7c1dcc776f4af41d87a7945e8b356e6fb31d3ddc49354ec38c42b405c1dcc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=forbid -Copt-level=3" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] da9e0e96596e49f20e4bf3a71edafa96393c624cb4fe185e9d72a0891282668d
[INFO] running `Command { std: "docker" "start" "-a" "da9e0e96596e49f20e4bf3a71edafa96393c624cb4fe185e9d72a0891282668d", kill_on_drop: false }`
[INFO] [stderr]    Compiling prueba v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Path` and `self`
[INFO] [stdout]  --> src/main.rs:3:17
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::path::{Path, self};
[INFO] [stdout]   |                 ^^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:44:13
[INFO] [stdout]    |
[INFO] [stdout] 44 |         let mut entries = Vec::new();
[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: unused variable: `e`
[INFO] [stdout]   --> src/main.rs:53:46
[INFO] [stdout]    |
[INFO] [stdout] 53 |     let mut file = File::open(path).map_err(|e| format!("No se pudo montar: {}", path))?;           // Se da la ruta del sistema de archi...
[INFO] [stdout]    |                                              ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/main.rs:56:43
[INFO] [stdout]    |
[INFO] [stdout] 56 |     file.read_exact(&mut buffer).map_err(|e| format!("No se pudo montar: {}", path))?;              // Si no existe el superbloque lanza ...
[INFO] [stdout]    |                                           ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `fs_name`, `ver`, `vol_label`, `cluster_size`, `dir_cluster`, and `total_cluster` are never read
[INFO] [stdout]   --> src/main.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout] 7  | struct Superblock{          
[INFO] [stdout]    |        ---------- fields in this struct
[INFO] [stdout] 8  |     fs_name: String,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 9  |     ver: String,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 10 |     vol_label: String,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 11 |     cluster_size: u32,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 12 |     dir_cluster: u32,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 13 |     total_cluster: u32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Superblock` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DirectoryEntry` is never constructed
[INFO] [stdout]   --> src/main.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | struct DirectoryEntry{
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Filesystem` is never constructed
[INFO] [stdout]   --> src/main.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | struct Filesystem {superblock: Superblock}
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `read_cluster` and `list_files` are never used
[INFO] [stdout]   --> src/main.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | impl Filesystem {
[INFO] [stdout]    | --------------- methods in this implementation
[INFO] [stdout] 31 |     //función para leer los clusters
[INFO] [stdout] 32 |     fn read_cluster(&self, start_cluster: u32, num_clusters: u32) -> Result<Vec<u8>, String> {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 43 |     fn list_files(&self) -> Vec<DirectoryEntry> {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `Command { std: "docker" "inspect" "da9e0e96596e49f20e4bf3a71edafa96393c624cb4fe185e9d72a0891282668d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da9e0e96596e49f20e4bf3a71edafa96393c624cb4fe185e9d72a0891282668d", kill_on_drop: false }`
[INFO] [stdout] da9e0e96596e49f20e4bf3a71edafa96393c624cb4fe185e9d72a0891282668d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=forbid -Copt-level=3" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 76e3644249b6944c570a71f0db66914f7f8c93301026abb353cd37535ff88411
[INFO] running `Command { std: "docker" "start" "-a" "76e3644249b6944c570a71f0db66914f7f8c93301026abb353cd37535ff88411", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `Path` and `self`
[INFO] [stderr]  --> src/main.rs:3:17
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::path::{Path, self};
[INFO] [stderr]   |                 ^^^^  ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:44:13
[INFO] [stderr]    |
[INFO] [stderr] 44 |         let mut entries = Vec::new();
[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: unused variable: `e`
[INFO] [stderr]   --> src/main.rs:53:46
[INFO] [stderr]    |
[INFO] [stderr] 53 |     let mut file = File::open(path).map_err(|e| format!("No se pudo montar: {}", path))?;           // Se da la ruta del sistema de archi...
[INFO] [stderr]    |                                              ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/main.rs:56:43
[INFO] [stderr]    |
[INFO] [stderr] 56 |     file.read_exact(&mut buffer).map_err(|e| format!("No se pudo montar: {}", path))?;              // Si no existe el superbloque lanza ...
[INFO] [stderr]    |                                           ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: fields `fs_name`, `ver`, `vol_label`, `cluster_size`, `dir_cluster`, and `total_cluster` are never read
[INFO] [stderr]   --> src/main.rs:8:5
[INFO] [stderr]    |
[INFO] [stderr] 7  | struct Superblock{          
[INFO] [stderr]    |        ---------- fields in this struct
[INFO] [stderr] 8  |     fs_name: String,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 9  |     ver: String,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 10 |     vol_label: String,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 11 |     cluster_size: u32,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 12 |     dir_cluster: u32,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 13 |     total_cluster: u32,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Superblock` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `DirectoryEntry` is never constructed
[INFO] [stderr]   --> src/main.rs:18:8
[INFO] [stderr]    |
[INFO] [stderr] 18 | struct DirectoryEntry{
[INFO] [stderr]    |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Filesystem` is never constructed
[INFO] [stderr]   --> src/main.rs:28:8
[INFO] [stderr]    |
[INFO] [stderr] 28 | struct Filesystem {superblock: Superblock}
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: methods `read_cluster` and `list_files` are never used
[INFO] [stderr]   --> src/main.rs:32:8
[INFO] [stderr]    |
[INFO] [stderr] 30 | impl Filesystem {
[INFO] [stderr]    | --------------- methods in this implementation
[INFO] [stderr] 31 |     //función para leer los clusters
[INFO] [stderr] 32 |     fn read_cluster(&self, start_cluster: u32, num_clusters: u32) -> Result<Vec<u8>, String> {
[INFO] [stderr]    |        ^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 43 |     fn list_files(&self) -> Vec<DirectoryEntry> {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `prueba` (bin "prueba" test) generated 8 warnings (run `cargo fix --bin "prueba" --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/prueba-948946cedc0d3b09)
[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" "76e3644249b6944c570a71f0db66914f7f8c93301026abb353cd37535ff88411", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76e3644249b6944c570a71f0db66914f7f8c93301026abb353cd37535ff88411", kill_on_drop: false }`
[INFO] [stdout] 76e3644249b6944c570a71f0db66914f7f8c93301026abb353cd37535ff88411
