[INFO] cloning repository https://github.com/DonizeteVida/rust_algorithms
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DonizeteVida/rust_algorithms" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDonizeteVida%2Frust_algorithms", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDonizeteVida%2Frust_algorithms'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8b6e5a21fda2a2c31dbea007e9d738a6a5737e2f
[INFO] testing DonizeteVida/rust_algorithms against 1.69.0 for beta-1.70-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDonizeteVida%2Frust_algorithms" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/DonizeteVida/rust_algorithms on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/DonizeteVida/rust_algorithms
[INFO] finished tweaking git repo https://github.com/DonizeteVida/rust_algorithms
[INFO] tweaked toml for git repo https://github.com/DonizeteVida/rust_algorithms written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/DonizeteVida/rust_algorithms 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" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 539ca75c600f0ee860d1fec9d7eba04d675ff1eeb014db1f10df4c4b5accf8ad
[INFO] running `Command { std: "docker" "start" "-a" "539ca75c600f0ee860d1fec9d7eba04d675ff1eeb014db1f10df4c4b5accf8ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "539ca75c600f0ee860d1fec9d7eba04d675ff1eeb014db1f10df4c4b5accf8ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "539ca75c600f0ee860d1fec9d7eba04d675ff1eeb014db1f10df4c4b5accf8ad", kill_on_drop: false }`
[INFO] [stdout] 539ca75c600f0ee860d1fec9d7eba04d675ff1eeb014db1f10df4c4b5accf8ad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 10a330171003c3537ce14c4a5cbb349ef5040bb11d63583118ed8fb098fcc410
[INFO] running `Command { std: "docker" "start" "-a" "10a330171003c3537ce14c4a5cbb349ef5040bb11d63583118ed8fb098fcc410", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_algorithms v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::collections::LinkedList`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::LinkedList;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `item`
[INFO] [stdout]   --> src/binary_tree.rs:91:30
[INFO] [stdout]    |
[INFO] [stdout] 91 |     pub fn remove(&mut self, item: T) -> Option<T> {
[INFO] [stdout]    |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_item`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `node` is never read
[INFO] [stdout]  --> src/binary_tree.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct BinaryTree<T> {
[INFO] [stdout]   |            ---------- field in this struct
[INFO] [stdout] 5 |     node: Option<Box<Node<T>>>,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `BinaryTree` 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: fields `left`, `right`, and `item` are never read
[INFO] [stdout]   --> src/binary_tree.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | struct Node<T> {
[INFO] [stdout]    |        ---- fields in this struct
[INFO] [stdout] 10 |     left: Option<Box<Node<T>>>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 11 |     right: Option<Box<Node<T>>>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 12 |     item: T,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/binary_tree.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn new(item: T) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/binary_tree.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `add` is never used
[INFO] [stdout]   --> src/binary_tree.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub fn add(&mut self, item: T) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `inorder` is never used
[INFO] [stdout]   --> src/binary_tree.rs:58:12
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub fn inorder<F: Fn(&T)>(&self, f: F) {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `preorder` is never used
[INFO] [stdout]   --> src/binary_tree.rs:69:12
[INFO] [stdout]    |
[INFO] [stdout] 69 |     pub fn preorder<F: Fn(&T)>(&self, f: F) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `postorder` is never used
[INFO] [stdout]   --> src/binary_tree.rs:80:12
[INFO] [stdout]    |
[INFO] [stdout] 80 |     pub fn postorder<F: Fn(&T)>(&self, f: F) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `remove` is never used
[INFO] [stdout]   --> src/binary_tree.rs:91:12
[INFO] [stdout]    |
[INFO] [stdout] 91 |     pub fn remove(&mut self, item: T) -> Option<T> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `contains` is never used
[INFO] [stdout]   --> src/binary_tree.rs:95:12
[INFO] [stdout]    |
[INFO] [stdout] 95 |     pub fn contains(&self, item: T) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `List` is never constructed
[INFO] [stdout]  --> src/too_many_lists/bad_stack/mod.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct List<T> {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Link` is never used
[INFO] [stdout]  --> src/too_many_lists/bad_stack/mod.rs:7:6
[INFO] [stdout]   |
[INFO] [stdout] 7 | enum Link<T> {
[INFO] [stdout]   |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Node` is never constructed
[INFO] [stdout]   --> src/too_many_lists/bad_stack/mod.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct Node<T> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/too_many_lists/bad_stack/mod.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn new(elem: T) -> Node<T> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/too_many_lists/bad_stack/mod.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn new() -> List<T> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `push` is never used
[INFO] [stdout]   --> src/too_many_lists/bad_stack/mod.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn push(&mut self, elem: T) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `pop` is never used
[INFO] [stdout]   --> src/too_many_lists/bad_stack/mod.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn pop(&mut self) -> Option<T> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `head` is never read
[INFO] [stdout]  --> src/double_linked_list.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct DoubleLinkedList<T> {
[INFO] [stdout]   |        ---------------- field in this struct
[INFO] [stdout] 7 |     head: Typo<T>
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `DoubleLinkedList` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `prev`, `data`, and `next` are never read
[INFO] [stdout]   --> src/double_linked_list.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct Node<T> {
[INFO] [stdout]    |        ---- fields in this struct
[INFO] [stdout] 12 |     prev: Typo<T>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 13 |     data: T,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 14 |     next: Typo<T>
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/double_linked_list.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn new(data: T) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/double_linked_list.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `push` is never used
[INFO] [stdout]   --> src/double_linked_list.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn push(&mut self, data: T) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `pop` is never used
[INFO] [stdout]   --> src/double_linked_list.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn pop(&mut self) -> Option<T> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 25 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.17s
[INFO] running `Command { std: "docker" "inspect" "10a330171003c3537ce14c4a5cbb349ef5040bb11d63583118ed8fb098fcc410", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10a330171003c3537ce14c4a5cbb349ef5040bb11d63583118ed8fb098fcc410", kill_on_drop: false }`
[INFO] [stdout] 10a330171003c3537ce14c4a5cbb349ef5040bb11d63583118ed8fb098fcc410
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 03f7960aec8d9d886c28fd6d563c67a1daebdea374a50411120e704ec7512242
[INFO] running `Command { std: "docker" "start" "-a" "03f7960aec8d9d886c28fd6d563c67a1daebdea374a50411120e704ec7512242", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_algorithms v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::collections::LinkedList`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::LinkedList;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/too_many_lists/bad_stack/mod.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `item`
[INFO] [stdout]   --> src/binary_tree.rs:91:30
[INFO] [stdout]    |
[INFO] [stdout] 91 |     pub fn remove(&mut self, item: T) -> Option<T> {
[INFO] [stdout]    |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_item`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `List` is never constructed
[INFO] [stdout]  --> src/too_many_lists/bad_stack/mod.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct List<T> {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Link` is never used
[INFO] [stdout]  --> src/too_many_lists/bad_stack/mod.rs:7:6
[INFO] [stdout]   |
[INFO] [stdout] 7 | enum Link<T> {
[INFO] [stdout]   |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Node` is never constructed
[INFO] [stdout]   --> src/too_many_lists/bad_stack/mod.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct Node<T> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/too_many_lists/bad_stack/mod.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn new(elem: T) -> Node<T> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/too_many_lists/bad_stack/mod.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn new() -> List<T> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `push` is never used
[INFO] [stdout]   --> src/too_many_lists/bad_stack/mod.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn push(&mut self, elem: T) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `pop` is never used
[INFO] [stdout]   --> src/too_many_lists/bad_stack/mod.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn pop(&mut self) -> Option<T> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `Command { std: "docker" "inspect" "03f7960aec8d9d886c28fd6d563c67a1daebdea374a50411120e704ec7512242", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03f7960aec8d9d886c28fd6d563c67a1daebdea374a50411120e704ec7512242", kill_on_drop: false }`
[INFO] [stdout] 03f7960aec8d9d886c28fd6d563c67a1daebdea374a50411120e704ec7512242
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b4aff6b175e2273f7f414790b9c3fbbf137614a290e46441fc55f415b3564d03
[INFO] running `Command { std: "docker" "start" "-a" "b4aff6b175e2273f7f414790b9c3fbbf137614a290e46441fc55f415b3564d03", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::collections::LinkedList`
[INFO] [stderr]  --> src/main.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::collections::LinkedList;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]   --> src/too_many_lists/bad_stack/mod.rs:52:9
[INFO] [stderr]    |
[INFO] [stderr] 52 |     use super::*;
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `item`
[INFO] [stderr]   --> src/binary_tree.rs:91:30
[INFO] [stderr]    |
[INFO] [stderr] 91 |     pub fn remove(&mut self, item: T) -> Option<T> {
[INFO] [stderr]    |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_item`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `List` is never constructed
[INFO] [stderr]  --> src/too_many_lists/bad_stack/mod.rs:3:12
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub struct List<T> {
[INFO] [stderr]   |            ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Link` is never used
[INFO] [stderr]  --> src/too_many_lists/bad_stack/mod.rs:7:6
[INFO] [stderr]   |
[INFO] [stderr] 7 | enum Link<T> {
[INFO] [stderr]   |      ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Node` is never constructed
[INFO] [stderr]   --> src/too_many_lists/bad_stack/mod.rs:12:8
[INFO] [stderr]    |
[INFO] [stderr] 12 | struct Node<T> {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> src/too_many_lists/bad_stack/mod.rs:18:8
[INFO] [stderr]    |
[INFO] [stderr] 18 |     fn new(elem: T) -> Node<T> {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> src/too_many_lists/bad_stack/mod.rs:27:12
[INFO] [stderr]    |
[INFO] [stderr] 27 |     pub fn new() -> List<T> {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `push` is never used
[INFO] [stderr]   --> src/too_many_lists/bad_stack/mod.rs:31:12
[INFO] [stderr]    |
[INFO] [stderr] 31 |     pub fn push(&mut self, elem: T) {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `pop` is never used
[INFO] [stderr]   --> src/too_many_lists/bad_stack/mod.rs:39:12
[INFO] [stderr]    |
[INFO] [stderr] 39 |     pub fn pop(&mut self) -> Option<T> {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rust_algorithms` (bin "rust_algorithms" test) generated 10 warnings (run `cargo fix --bin "rust_algorithms" --tests` to apply 3 suggestions)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_algorithms-9375a22d30534861)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test binary_tree::tests::should_inorder ... ok
[INFO] [stdout] test binary_tree::tests::should_contain_value ... ok
[INFO] [stdout] test binary_tree::tests::should_postorder ... ok
[INFO] [stdout] test binary_tree::tests::should_preorder ... ok
[INFO] [stdout] test double_linked_list::tests::should_pop_properly ... ok
[INFO] [stdout] test too_many_lists::bad_stack::tests::should_add_item ... ok
[INFO] [stderr] 
[INFO] [stderr] thread 'double_linked_list::tests::should_insert_properly' has overflowed its stack
[INFO] [stderr] fatal runtime error: stack overflow
[INFO] [stderr] error: test failed, to rerun pass `--bin rust_algorithms`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/deps/rust_algorithms-9375a22d30534861` (signal: 6, SIGABRT: process abort signal)
[INFO] running `Command { std: "docker" "inspect" "b4aff6b175e2273f7f414790b9c3fbbf137614a290e46441fc55f415b3564d03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4aff6b175e2273f7f414790b9c3fbbf137614a290e46441fc55f415b3564d03", kill_on_drop: false }`
[INFO] [stdout] b4aff6b175e2273f7f414790b9c3fbbf137614a290e46441fc55f415b3564d03
