[INFO] cloning repository https://github.com/rayniel95/rust-little-projects
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rayniel95/rust-little-projects" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frayniel95%2Frust-little-projects", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frayniel95%2Frust-little-projects'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e360d847e75dfe642dadfa46631a58aa94c84825
[INFO] testing rayniel95/rust-little-projects against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frayniel95%2Frust-little-projects" "/workspace/builds/worker-20/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-20/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rayniel95/rust-little-projects on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rayniel95/rust-little-projects
[INFO] finished tweaking git repo https://github.com/rayniel95/rust-little-projects
[INFO] tweaked toml for git repo https://github.com/rayniel95/rust-little-projects written to /workspace/builds/worker-20/source/Cargo.toml
[INFO] crate git repo https://github.com/rayniel95/rust-little-projects already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 408541c3361527d756c80f67304a9340e21718acc83e41233baed5c6a7d8b9ad
[INFO] running `Command { std: "docker" "start" "-a" "408541c3361527d756c80f67304a9340e21718acc83e41233baed5c6a7d8b9ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "408541c3361527d756c80f67304a9340e21718acc83e41233baed5c6a7d8b9ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "408541c3361527d756c80f67304a9340e21718acc83e41233baed5c6a7d8b9ad", kill_on_drop: false }`
[INFO] [stdout] 408541c3361527d756c80f67304a9340e21718acc83e41233baed5c6a7d8b9ad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9b4af7b6f535b65526d011a9a15c5adb0554737a4f6c9b6e26844672d7c6f0e0
[INFO] running `Command { std: "docker" "start" "-a" "9b4af7b6f535b65526d011a9a15c5adb0554737a4f6c9b6e26844672d7c6f0e0", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-little-projects v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::linked_list::LinkedList`
[INFO] [stdout]  --> src/dsandalgo/linked_list/test.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::linked_list::LinkedList;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::linked_list::LinkedListError`
[INFO] [stdout]  --> src/dsandalgo/linked_list/test.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use super::linked_list::LinkedListError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `LinkedListError`
[INFO] [stdout]   --> src/dsandalgo/linked_list/linked_list.rs:26:10
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub enum LinkedListError{
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/dsandalgo/linked_list/linked_list.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub fn new() -> Self{
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `count`
[INFO] [stdout]   --> src/dsandalgo/linked_list/linked_list.rs:45:12
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn count(&self) -> u32{
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `pop_first`
[INFO] [stdout]   --> src/dsandalgo/linked_list/linked_list.rs:65:12
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn pop_first(& mut self) -> Result<T, LinkedListError>{
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_first`
[INFO] [stdout]   --> src/dsandalgo/linked_list/linked_list.rs:85:12
[INFO] [stdout]    |
[INFO] [stdout] 85 |     pub fn add_first(& mut self, value: T){
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `pop_last`
[INFO] [stdout]   --> src/dsandalgo/linked_list/linked_list.rs:99:12
[INFO] [stdout]    |
[INFO] [stdout] 99 |     pub fn pop_last(& mut self) -> Result<T, LinkedListError>{
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `peek_first`
[INFO] [stdout]    --> src/dsandalgo/linked_list/linked_list.rs:132:12
[INFO] [stdout]     |
[INFO] [stdout] 132 |     pub fn peek_first(&self)->Option<Ref<T>>{
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `peek_last`
[INFO] [stdout]    --> src/dsandalgo/linked_list/linked_list.rs:140:12
[INFO] [stdout]     |
[INFO] [stdout] 140 |     pub fn peek_last(&self)->Option<Ref<T>>{
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `newLinkToNode` should have a snake case name
[INFO] [stdout]  --> src/dsandalgo/linked_list/linked_list.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn newLinkToNode<T>(value: T) -> LinkToNode<T>{
[INFO] [stdout]   |    ^^^^^^^^^^^^^ help: convert the identifier to snake case: `new_link_to_node`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "9b4af7b6f535b65526d011a9a15c5adb0554737a4f6c9b6e26844672d7c6f0e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b4af7b6f535b65526d011a9a15c5adb0554737a4f6c9b6e26844672d7c6f0e0", kill_on_drop: false }`
[INFO] [stdout] 9b4af7b6f535b65526d011a9a15c5adb0554737a4f6c9b6e26844672d7c6f0e0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 022b923e0b9c2563f24fe1fbacf7d645d3dd39200e29e3313d8ec1b4e83822a3
[INFO] running `Command { std: "docker" "start" "-a" "022b923e0b9c2563f24fe1fbacf7d645d3dd39200e29e3313d8ec1b4e83822a3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust-little-projects v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::linked_list::LinkedList`
[INFO] [stdout]  --> src/dsandalgo/linked_list/test.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::linked_list::LinkedList;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::linked_list::LinkedListError`
[INFO] [stdout]  --> src/dsandalgo/linked_list/test.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use super::linked_list::LinkedListError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `LinkedListError`
[INFO] [stdout]   --> src/dsandalgo/linked_list/linked_list.rs:26:10
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub enum LinkedListError{
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/dsandalgo/linked_list/linked_list.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub fn new() -> Self{
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `count`
[INFO] [stdout]   --> src/dsandalgo/linked_list/linked_list.rs:45:12
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn count(&self) -> u32{
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `pop_first`
[INFO] [stdout]   --> src/dsandalgo/linked_list/linked_list.rs:65:12
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn pop_first(& mut self) -> Result<T, LinkedListError>{
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_first`
[INFO] [stdout]   --> src/dsandalgo/linked_list/linked_list.rs:85:12
[INFO] [stdout]    |
[INFO] [stdout] 85 |     pub fn add_first(& mut self, value: T){
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `pop_last`
[INFO] [stdout]   --> src/dsandalgo/linked_list/linked_list.rs:99:12
[INFO] [stdout]    |
[INFO] [stdout] 99 |     pub fn pop_last(& mut self) -> Result<T, LinkedListError>{
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `peek_first`
[INFO] [stdout]    --> src/dsandalgo/linked_list/linked_list.rs:132:12
[INFO] [stdout]     |
[INFO] [stdout] 132 |     pub fn peek_first(&self)->Option<Ref<T>>{
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `peek_last`
[INFO] [stdout]    --> src/dsandalgo/linked_list/linked_list.rs:140:12
[INFO] [stdout]     |
[INFO] [stdout] 140 |     pub fn peek_last(&self)->Option<Ref<T>>{
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `newLinkToNode` should have a snake case name
[INFO] [stdout]  --> src/dsandalgo/linked_list/linked_list.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn newLinkToNode<T>(value: T) -> LinkToNode<T>{
[INFO] [stdout]   |    ^^^^^^^^^^^^^ help: convert the identifier to snake case: `new_link_to_node`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::linked_list::LinkedListError`
[INFO] [stdout]  --> src/dsandalgo/linked_list/test.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use super::linked_list::LinkedListError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `newLinkToNode` should have a snake case name
[INFO] [stdout]  --> src/dsandalgo/linked_list/linked_list.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn newLinkToNode<T>(value: T) -> LinkToNode<T>{
[INFO] [stdout]   |    ^^^^^^^^^^^^^ help: convert the identifier to snake case: `new_link_to_node`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/dsandalgo/linked_list/test.rs:60:13
[INFO] [stdout]    |
[INFO] [stdout] 60 |             list.pop_first();
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/dsandalgo/linked_list/test.rs:113:13
[INFO] [stdout]     |
[INFO] [stdout] 113 |             list.pop_last();
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.04s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/rust_little_projects-d8a329a8cbcd4db0)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_little_projects-ec73bfacf1181087)
[INFO] running `Command { std: "docker" "inspect" "022b923e0b9c2563f24fe1fbacf7d645d3dd39200e29e3313d8ec1b4e83822a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "022b923e0b9c2563f24fe1fbacf7d645d3dd39200e29e3313d8ec1b4e83822a3", kill_on_drop: false }`
[INFO] [stdout] 022b923e0b9c2563f24fe1fbacf7d645d3dd39200e29e3313d8ec1b4e83822a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e4c9cf96bf36105ff47b0ae18b281fe048b1f19093d326cd65490b5c51184174
[INFO] running `Command { std: "docker" "start" "-a" "e4c9cf96bf36105ff47b0ae18b281fe048b1f19093d326cd65490b5c51184174", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused import: `super::linked_list::LinkedList`
[INFO] [stderr]  --> src/dsandalgo/linked_list/test.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use super::linked_list::LinkedList;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::linked_list::LinkedListError`
[INFO] [stderr]  --> src/dsandalgo/linked_list/test.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use super::linked_list::LinkedListError;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `LinkedListError`
[INFO] [stderr]   --> src/dsandalgo/linked_list/linked_list.rs:26:10
[INFO] [stderr]    |
[INFO] [stderr] 26 | pub enum LinkedListError{
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/dsandalgo/linked_list/linked_list.rs:37:12
[INFO] [stderr]    |
[INFO] [stderr] 37 |     pub fn new() -> Self{
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `count`
[INFO] [stderr]   --> src/dsandalgo/linked_list/linked_list.rs:45:12
[INFO] [stderr]    |
[INFO] [stderr] 45 |     pub fn count(&self) -> u32{
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `pop_first`
[INFO] [stderr]   --> src/dsandalgo/linked_list/linked_list.rs:65:12
[INFO] [stderr]    |
[INFO] [stderr] 65 |     pub fn pop_first(& mut self) -> Result<T, LinkedListError>{
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `add_first`
[INFO] [stderr]   --> src/dsandalgo/linked_list/linked_list.rs:85:12
[INFO] [stderr]    |
[INFO] [stderr] 85 |     pub fn add_first(& mut self, value: T){
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `pop_last`
[INFO] [stderr]   --> src/dsandalgo/linked_list/linked_list.rs:99:12
[INFO] [stderr]    |
[INFO] [stderr] 99 |     pub fn pop_last(& mut self) -> Result<T, LinkedListError>{
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `peek_first`
[INFO] [stderr]    --> src/dsandalgo/linked_list/linked_list.rs:132:12
[INFO] [stderr]     |
[INFO] [stderr] 132 |     pub fn peek_first(&self)->Option<Ref<T>>{
[INFO] [stderr]     |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `peek_last`
[INFO] [stderr]    --> src/dsandalgo/linked_list/linked_list.rs:140:12
[INFO] [stderr]     |
[INFO] [stderr] 140 |     pub fn peek_last(&self)->Option<Ref<T>>{
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `newLinkToNode` should have a snake case name
[INFO] [stderr]  --> src/dsandalgo/linked_list/linked_list.rs:7:4
[INFO] [stderr]   |
[INFO] [stderr] 7 | fn newLinkToNode<T>(value: T) -> LinkToNode<T>{
[INFO] [stderr]   |    ^^^^^^^^^^^^^ help: convert the identifier to snake case: `new_link_to_node`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-little-projects` (lib) generated 11 warnings
[INFO] [stderr] warning: unused import: `super::linked_list::LinkedListError`
[INFO] [stderr]  --> src/dsandalgo/linked_list/test.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use super::linked_list::LinkedListError;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/dsandalgo/linked_list/test.rs:60:13
[INFO] [stderr]    |
[INFO] [stderr] 60 |             list.pop_first();
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/dsandalgo/linked_list/test.rs:113:13
[INFO] [stderr]     |
[INFO] [stderr] 113 |             list.pop_last();
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-little-projects` (lib test) generated 4 warnings (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.23s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rust_little_projects-d8a329a8cbcd4db0)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test dsandalgo::linked_list::test::test::add_first_test ... ok
[INFO] [stdout] test dsandalgo::linked_list::test::test::add_last_and_count_test ... ok
[INFO] [stdout] test dsandalgo::linked_list::test::test::extend_test ... ok
[INFO] [stdout] test dsandalgo::linked_list::test::test::iterator_test ... ok
[INFO] [stdout] test dsandalgo::linked_list::test::test::peek_first_test ... ok
[INFO] [stdout] test dsandalgo::linked_list::test::test::peek_last_test ... ok
[INFO] [stdout] test dsandalgo::linked_list::test::test::pop_first_test ... ok
[INFO] [stdout] test dsandalgo::linked_list::test::test::pop_last_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 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_little_projects-ec73bfacf1181087)
[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-little-projects
[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" "e4c9cf96bf36105ff47b0ae18b281fe048b1f19093d326cd65490b5c51184174", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4c9cf96bf36105ff47b0ae18b281fe048b1f19093d326cd65490b5c51184174", kill_on_drop: false }`
[INFO] [stdout] e4c9cf96bf36105ff47b0ae18b281fe048b1f19093d326cd65490b5c51184174