[INFO] cloning repository https://github.com/farhat-nawaz/dsa-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/farhat-nawaz/dsa-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffarhat-nawaz%2Fdsa-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffarhat-nawaz%2Fdsa-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0db18bfcc037cb585d5266eb49660bc622a02278
[INFO] checking farhat-nawaz/dsa-rs against master#82310651b93a594a3fd69015e1562186a080d94c for pr-145770
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffarhat-nawaz%2Fdsa-rs" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/farhat-nawaz/dsa-rs
[INFO] finished tweaking git repo https://github.com/farhat-nawaz/dsa-rs
[INFO] tweaked toml for git repo https://github.com/farhat-nawaz/dsa-rs written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/farhat-nawaz/dsa-rs on toolchain 82310651b93a594a3fd69015e1562186a080d94c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/farhat-nawaz/dsa-rs 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" "+82310651b93a594a3fd69015e1562186a080d94c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 74c526955d17438cea130b0ee844e9ffc8ac1e2998fac783c01c0caf714e71e8
[INFO] running `Command { std: "docker" "start" "-a" "74c526955d17438cea130b0ee844e9ffc8ac1e2998fac783c01c0caf714e71e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "74c526955d17438cea130b0ee844e9ffc8ac1e2998fac783c01c0caf714e71e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74c526955d17438cea130b0ee844e9ffc8ac1e2998fac783c01c0caf714e71e8", kill_on_drop: false }`
[INFO] [stdout] 74c526955d17438cea130b0ee844e9ffc8ac1e2998fac783c01c0caf714e71e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=forbid" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 394e2246f7b218912780a9a87999cf34be9e045c64d7387cd48218930cf5cf97
[INFO] running `Command { std: "docker" "start" "-a" "394e2246f7b218912780a9a87999cf34be9e045c64d7387cd48218930cf5cf97", kill_on_drop: false }`
[INFO] [stderr]     Checking data-structures-and-algorithms v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Node`
[INFO] [stdout]    --> src/ds/linked_list.rs:118:23
[INFO] [stdout]     |
[INFO] [stdout] 118 |     use super::{List, Node};
[INFO] [stdout]     |                       ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Node`
[INFO] [stdout]   --> src/ds/stack.rs:50:17
[INFO] [stdout]    |
[INFO] [stdout] 50 |     use super::{Node, Stack};
[INFO] [stdout]    |                 ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `List` and `Node`
[INFO] [stdout]    --> src/ds/linked_list.rs:118:17
[INFO] [stdout]     |
[INFO] [stdout] 118 |     use super::{List, Node};
[INFO] [stdout]     |                 ^^^^  ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::ds::DSError`
[INFO] [stdout]   --> src/ds/stack.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |     use crate::ds::DSError;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Node` and `Stack`
[INFO] [stdout]   --> src/ds/stack.rs:50:17
[INFO] [stdout]    |
[INFO] [stdout] 50 |     use super::{Node, Stack};
[INFO] [stdout]    |                 ^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Node` is never constructed
[INFO] [stdout]  --> src/ds/mod.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Node<T> {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/ds/mod.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl<T> Node<T> {
[INFO] [stdout]    | --------------- associated function in this implementation
[INFO] [stdout] 11 |     pub fn new(value: T) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `DSError` is never used
[INFO] [stdout]   --> src/ds/mod.rs:17:6
[INFO] [stdout]    |
[INFO] [stdout] 17 | enum DSError {
[INFO] [stdout]    |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `List` is never constructed
[INFO] [stdout]  --> src/ds/linked_list.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct List<T> {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/ds/linked_list.rs:10:12
[INFO] [stdout]     |
[INFO] [stdout] 9   | impl<T: Copy> List<T> {
[INFO] [stdout]     | --------------------- associated items in this implementation
[INFO] [stdout] 10  |     pub fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 17  |     pub fn insert(&mut self, value: T) {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 29  |     pub fn insert_at(&mut self, value: T, index: usize) -> Result<(), DSError> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 65  |     pub fn delete(&mut self) -> Result<T, DSError> {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 75  |     pub fn delete_at(&mut self, index: usize) -> Result<T, DSError> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 98  |     pub fn get(&mut self, index: usize) -> Option<T> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 112 |     pub fn len(&self) -> usize {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Stack` is never constructed
[INFO] [stdout]  --> src/ds/stack.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Stack<T> {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `push`, `pop`, `len`, and `clear` are never used
[INFO] [stdout]   --> src/ds/stack.rs:9:12
[INFO] [stdout]    |
[INFO] [stdout] 8  | impl<T> Stack<T> {
[INFO] [stdout]    | ---------------- associated items in this implementation
[INFO] [stdout] 9  |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 16 |     pub fn push(&mut self, value: T) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |     pub fn pop(&mut self) -> Result<T, DSError> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 38 |     pub fn len(&self) -> usize {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 42 |     pub fn clear(&mut self) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `delete_at` is never used
[INFO] [stdout]   --> src/ds/linked_list.rs:75:12
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl<T: Copy> List<T> {
[INFO] [stdout]    | --------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 75 |     pub fn delete_at(&mut self, index: usize) -> Result<T, DSError> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `clear` is never used
[INFO] [stdout]   --> src/ds/stack.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 8  | impl<T> Stack<T> {
[INFO] [stdout]    | ---------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 42 |     pub fn clear(&mut self) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] running `Command { std: "docker" "inspect" "394e2246f7b218912780a9a87999cf34be9e045c64d7387cd48218930cf5cf97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "394e2246f7b218912780a9a87999cf34be9e045c64d7387cd48218930cf5cf97", kill_on_drop: false }`
[INFO] [stdout] 394e2246f7b218912780a9a87999cf34be9e045c64d7387cd48218930cf5cf97
