[INFO] cloning repository https://github.com/jtubay03/rust-dsa
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jtubay03/rust-dsa" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjtubay03%2Frust-dsa", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjtubay03%2Frust-dsa'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f548ca6ca79b0bc8777bc1ae937e518b9162d32c
[INFO] testing jtubay03/rust-dsa against 1.76.0 for beta-1.77-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjtubay03%2Frust-dsa" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jtubay03/rust-dsa on toolchain 1.76.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jtubay03/rust-dsa
[INFO] finished tweaking git repo https://github.com/jtubay03/rust-dsa
[INFO] tweaked toml for git repo https://github.com/jtubay03/rust-dsa written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/jtubay03/rust-dsa 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" "+1.76.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] testing jtubay03/rust-dsa against beta-2024-02-10 for beta-1.77-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjtubay03%2Frust-dsa" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jtubay03/rust-dsa on toolchain beta-2024-02-10
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-02-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jtubay03/rust-dsa
[INFO] finished tweaking git repo https://github.com/jtubay03/rust-dsa
[INFO] tweaked toml for git repo https://github.com/jtubay03/rust-dsa written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/jtubay03/rust-dsa already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-02-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-02-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 66e7f973eb50d35d7384b00181d553776ebfe3dff7cd9754e74802143395ecf6
[INFO] running `Command { std: "docker" "start" "-a" "66e7f973eb50d35d7384b00181d553776ebfe3dff7cd9754e74802143395ecf6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "66e7f973eb50d35d7384b00181d553776ebfe3dff7cd9754e74802143395ecf6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66e7f973eb50d35d7384b00181d553776ebfe3dff7cd9754e74802143395ecf6", kill_on_drop: false }`
[INFO] [stdout] 66e7f973eb50d35d7384b00181d553776ebfe3dff7cd9754e74802143395ecf6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-02-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 663ed6c6c38022bbbd23776d6a487de4610cd90f13830efb4b571207f6c2783f
[INFO] running `Command { std: "docker" "start" "-a" "663ed6c6c38022bbbd23776d6a487de4610cd90f13830efb4b571207f6c2783f", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-dsa v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `val`
[INFO] [stdout]   --> src/data_structures/linked_list.rs:24:34
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn push_front(&mut self, val: T) {
[INFO] [stdout]    |                                  ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node_val`
[INFO] [stdout]   --> src/data_structures/linked_list.rs:51:36
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub fn insert_after(&mut self, node_val: T, new_val: T) {
[INFO] [stdout]    |                                    ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_node_val`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_val`
[INFO] [stdout]   --> src/data_structures/linked_list.rs:51:49
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub fn insert_after(&mut self, node_val: T, new_val: T) {
[INFO] [stdout]    |                                                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_val`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `val`
[INFO] [stdout]   --> src/data_structures/linked_list.rs:56:30
[INFO] [stdout]    |
[INFO] [stdout] 56 |     pub fn remove(&mut self, val: T) {
[INFO] [stdout]    |                              ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `val`
[INFO] [stdout]   --> src/data_structures/linked_list.rs:60:28
[INFO] [stdout]    |
[INFO] [stdout] 60 |     pub fn contains(&self, val: T) -> bool {
[INFO] [stdout]    |                            ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]   --> src/data_structures/linked_list.rs:68:27
[INFO] [stdout]    |
[INFO] [stdout] 68 |     pub fn get(&mut self, index: usize) {
[INFO] [stdout]    |                           ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `val` is never read
[INFO] [stdout]  --> src/data_structures/linked_list.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Node<T> {
[INFO] [stdout]   |            ---- field in this struct
[INFO] [stdout] 2 |     val: Option<T>,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `Command { std: "docker" "inspect" "663ed6c6c38022bbbd23776d6a487de4610cd90f13830efb4b571207f6c2783f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "663ed6c6c38022bbbd23776d6a487de4610cd90f13830efb4b571207f6c2783f", kill_on_drop: false }`
[INFO] [stdout] 663ed6c6c38022bbbd23776d6a487de4610cd90f13830efb4b571207f6c2783f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-02-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d4aaacbac193972adf2616aa523e2967a4747bf5fae2d36c99159eb2586f9a7d
[INFO] running `Command { std: "docker" "start" "-a" "d4aaacbac193972adf2616aa523e2967a4747bf5fae2d36c99159eb2586f9a7d", kill_on_drop: false }`
[INFO] [stdout] warning: unused variable: `val`
[INFO] [stdout]   --> src/data_structures/linked_list.rs:24:34
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn push_front(&mut self, val: T) {
[INFO] [stdout]    |                                  ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node_val`
[INFO] [stdout]   --> src/data_structures/linked_list.rs:51:36
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub fn insert_after(&mut self, node_val: T, new_val: T) {
[INFO] [stdout]    |                                    ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_node_val`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_val`
[INFO] [stdout]   --> src/data_structures/linked_list.rs:51:49
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub fn insert_after(&mut self, node_val: T, new_val: T) {
[INFO] [stdout]    |                                                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_val`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `val`
[INFO] [stdout]   --> src/data_structures/linked_list.rs:56:30
[INFO] [stdout]    |
[INFO] [stdout] 56 |     pub fn remove(&mut self, val: T) {
[INFO] [stdout]    |                              ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `val`
[INFO] [stdout]   --> src/data_structures/linked_list.rs:60:28
[INFO] [stdout]    |
[INFO] [stdout] 60 |     pub fn contains(&self, val: T) -> bool {
[INFO] [stdout]    |                            ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]   --> src/data_structures/linked_list.rs:68:27
[INFO] [stdout]    |
[INFO] [stdout] 68 |     pub fn get(&mut self, index: usize) {
[INFO] [stdout]    |                           ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `val` is never read
[INFO] [stdout]  --> src/data_structures/linked_list.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Node<T> {
[INFO] [stdout]   |            ---- field in this struct
[INFO] [stdout] 2 |     val: Option<T>,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rust-dsa v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `val`
[INFO] [stdout]   --> src/data_structures/linked_list.rs:24:34
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn push_front(&mut self, val: T) {
[INFO] [stdout]    |                                  ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node_val`
[INFO] [stdout]   --> src/data_structures/linked_list.rs:51:36
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub fn insert_after(&mut self, node_val: T, new_val: T) {
[INFO] [stdout]    |                                    ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_node_val`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_val`
[INFO] [stdout]   --> src/data_structures/linked_list.rs:51:49
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub fn insert_after(&mut self, node_val: T, new_val: T) {
[INFO] [stdout]    |                                                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_val`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `val`
[INFO] [stdout]   --> src/data_structures/linked_list.rs:56:30
[INFO] [stdout]    |
[INFO] [stdout] 56 |     pub fn remove(&mut self, val: T) {
[INFO] [stdout]    |                              ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `val`
[INFO] [stdout]   --> src/data_structures/linked_list.rs:60:28
[INFO] [stdout]    |
[INFO] [stdout] 60 |     pub fn contains(&self, val: T) -> bool {
[INFO] [stdout]    |                            ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]   --> src/data_structures/linked_list.rs:68:27
[INFO] [stdout]    |
[INFO] [stdout] 68 |     pub fn get(&mut self, index: usize) {
[INFO] [stdout]    |                           ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `val` is never read
[INFO] [stdout]  --> src/data_structures/linked_list.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Node<T> {
[INFO] [stdout]   |            ---- field in this struct
[INFO] [stdout] 2 |     val: Option<T>,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "d4aaacbac193972adf2616aa523e2967a4747bf5fae2d36c99159eb2586f9a7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4aaacbac193972adf2616aa523e2967a4747bf5fae2d36c99159eb2586f9a7d", kill_on_drop: false }`
[INFO] [stdout] d4aaacbac193972adf2616aa523e2967a4747bf5fae2d36c99159eb2586f9a7d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-02-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3358360ee60bb17a757ffa7cc772cf06dff1a43aa05cf672ef649fb2641cd9cf
[INFO] running `Command { std: "docker" "start" "-a" "3358360ee60bb17a757ffa7cc772cf06dff1a43aa05cf672ef649fb2641cd9cf", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `val`
[INFO] [stderr]   --> src/data_structures/linked_list.rs:24:34
[INFO] [stderr]    |
[INFO] [stderr] 24 |     pub fn push_front(&mut self, val: T) {
[INFO] [stderr]    |                                  ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `node_val`
[INFO] [stderr]   --> src/data_structures/linked_list.rs:51:36
[INFO] [stderr]    |
[INFO] [stderr] 51 |     pub fn insert_after(&mut self, node_val: T, new_val: T) {
[INFO] [stderr]    |                                    ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_node_val`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `new_val`
[INFO] [stderr]   --> src/data_structures/linked_list.rs:51:49
[INFO] [stderr]    |
[INFO] [stderr] 51 |     pub fn insert_after(&mut self, node_val: T, new_val: T) {
[INFO] [stderr]    |                                                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_val`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `val`
[INFO] [stderr]   --> src/data_structures/linked_list.rs:56:30
[INFO] [stderr]    |
[INFO] [stderr] 56 |     pub fn remove(&mut self, val: T) {
[INFO] [stderr]    |                              ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `val`
[INFO] [stderr]   --> src/data_structures/linked_list.rs:60:28
[INFO] [stderr]    |
[INFO] [stderr] 60 |     pub fn contains(&self, val: T) -> bool {
[INFO] [stderr]    |                            ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `index`
[INFO] [stderr]   --> src/data_structures/linked_list.rs:68:27
[INFO] [stderr]    |
[INFO] [stderr] 68 |     pub fn get(&mut self, index: usize) {
[INFO] [stderr]    |                           ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stderr] 
[INFO] [stderr] warning: field `val` is never read
[INFO] [stderr]  --> src/data_structures/linked_list.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub struct Node<T> {
[INFO] [stderr]   |            ---- field in this struct
[INFO] [stderr] 2 |     val: Option<T>,
[INFO] [stderr]   |     ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-dsa` (lib) generated 7 warnings (run `cargo fix --lib -p rust-dsa` to apply 6 suggestions)
[INFO] [stderr] warning: `rust-dsa` (lib test) generated 7 warnings (7 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rust_dsa-c88e37e3a2d77ce4)
[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/rust_dsa-dc09b027e2d93d46)
[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 rust-dsa
[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" "3358360ee60bb17a757ffa7cc772cf06dff1a43aa05cf672ef649fb2641cd9cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3358360ee60bb17a757ffa7cc772cf06dff1a43aa05cf672ef649fb2641cd9cf", kill_on_drop: false }`
[INFO] [stdout] 3358360ee60bb17a757ffa7cc772cf06dff1a43aa05cf672ef649fb2641cd9cf