[INFO] cloning repository https://github.com/keepri/algo-ds
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/keepri/algo-ds" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkeepri%2Falgo-ds", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkeepri%2Falgo-ds'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e86369b15d0cf927544ada9b2bf15c7edf4c3086
[INFO] checking keepri/algo-ds against master#a5db378dc14a40dd1580c27fb8362156446382c3 for pr-136490
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkeepri%2Falgo-ds" "/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/keepri/algo-ds on toolchain a5db378dc14a40dd1580c27fb8362156446382c3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a5db378dc14a40dd1580c27fb8362156446382c3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/keepri/algo-ds
[INFO] finished tweaking git repo https://github.com/keepri/algo-ds
[INFO] tweaked toml for git repo https://github.com/keepri/algo-ds written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/keepri/algo-ds 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" "+a5db378dc14a40dd1580c27fb8362156446382c3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+a5db378dc14a40dd1580c27fb8362156446382c3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1c4a111a0d27ae863682957bc8d5badd058b808f0e71eb199ed1399fb2e7687b
[INFO] running `Command { std: "docker" "start" "-a" "1c4a111a0d27ae863682957bc8d5badd058b808f0e71eb199ed1399fb2e7687b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1c4a111a0d27ae863682957bc8d5badd058b808f0e71eb199ed1399fb2e7687b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c4a111a0d27ae863682957bc8d5badd058b808f0e71eb199ed1399fb2e7687b", kill_on_drop: false }`
[INFO] [stdout] 1c4a111a0d27ae863682957bc8d5badd058b808f0e71eb199ed1399fb2e7687b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+a5db378dc14a40dd1580c27fb8362156446382c3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 49e2a88b2b67c8384794d3b52bfee02432ec4bb768f857358165089a9cf5986b
[INFO] running `Command { std: "docker" "start" "-a" "49e2a88b2b67c8384794d3b52bfee02432ec4bb768f857358165089a9cf5986b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling eyre v0.6.8
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking once_cell v1.18.0
[INFO] [stderr]     Checking indenter v0.3.3
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking algorithms v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]   --> src/ds/list/mod.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | trait LinkedListTrait<T> {
[INFO] [stdout]    |       --------------- methods in this trait
[INFO] [stdout] 26 |     fn len(&self) -> usize;
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 27 |     fn insert_at(&self, item: T, index: usize) -> ();
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 28 |     fn remove(&self, item: T) -> Option<T>;
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 29 |     fn remove_at(&self, index: usize) -> Option<T>;
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 30 |     fn append(&self, item: T) -> ();
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 31 |     fn prepend(&self, item: T) -> ();
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 32 |     fn get(&self, index: usize) -> Option<T>;
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]   --> src/ds/list/mod.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | trait LinkedListTrait<T> {
[INFO] [stdout]    |       --------------- methods in this trait
[INFO] [stdout] 26 |     fn len(&self) -> usize;
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 27 |     fn insert_at(&self, item: T, index: usize) -> ();
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 28 |     fn remove(&self, item: T) -> Option<T>;
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 29 |     fn remove_at(&self, index: usize) -> Option<T>;
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 30 |     fn append(&self, item: T) -> ();
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 31 |     fn prepend(&self, item: T) -> ();
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 32 |     fn get(&self, index: usize) -> Option<T>;
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.57s
[INFO] running `Command { std: "docker" "inspect" "49e2a88b2b67c8384794d3b52bfee02432ec4bb768f857358165089a9cf5986b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49e2a88b2b67c8384794d3b52bfee02432ec4bb768f857358165089a9cf5986b", kill_on_drop: false }`
[INFO] [stdout] 49e2a88b2b67c8384794d3b52bfee02432ec4bb768f857358165089a9cf5986b