[INFO] cloning repository https://github.com/askreet/dsa-exercises
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/askreet/dsa-exercises" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faskreet%2Fdsa-exercises", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faskreet%2Fdsa-exercises'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 048b9353d339763e7db263b06d98ac4b26eb0dbe
[INFO] checking askreet/dsa-exercises against try#1baf923b9c3a455162afe43e18647f494c1a4b73 for pr-151510
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faskreet%2Fdsa-exercises" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/askreet/dsa-exercises
[INFO] finished tweaking git repo https://github.com/askreet/dsa-exercises
[INFO] tweaked toml for git repo https://github.com/askreet/dsa-exercises written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/askreet/dsa-exercises on toolchain 1baf923b9c3a455162afe43e18647f494c1a4b73
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1baf923b9c3a455162afe43e18647f494c1a4b73" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/askreet/dsa-exercises 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" "+1baf923b9c3a455162afe43e18647f494c1a4b73" "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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+1baf923b9c3a455162afe43e18647f494c1a4b73" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 946613c985c9d94e7a0181326f2ee4637947694f60a812901f60be7b5c5ae4d2
[INFO] running `Command { std: "docker" "start" "-a" "946613c985c9d94e7a0181326f2ee4637947694f60a812901f60be7b5c5ae4d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "946613c985c9d94e7a0181326f2ee4637947694f60a812901f60be7b5c5ae4d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "946613c985c9d94e7a0181326f2ee4637947694f60a812901f60be7b5c5ae4d2", kill_on_drop: false }`
[INFO] [stdout] 946613c985c9d94e7a0181326f2ee4637947694f60a812901f60be7b5c5ae4d2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+1baf923b9c3a455162afe43e18647f494c1a4b73" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ac8e7edff8aa079e487dcfc7cc95a5e0f9e829b9067365f50f4921886cdbf408
[INFO] running `Command { std: "docker" "start" "-a" "ac8e7edff8aa079e487dcfc7cc95a5e0f9e829b9067365f50f4921886cdbf408", kill_on_drop: false }`
[INFO] [stderr]     Checking dsa-exercises v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `k`
[INFO] [stdout]   --> src/hashmap.rs:47:23
[INFO] [stdout]    |
[INFO] [stdout] 47 |                 Some((k, v)) => *v = value,
[INFO] [stdout]    |                       ^ help: if this is intentional, prefix it with an underscore: `_k`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bubble_sort` is never used
[INFO] [stdout]  --> src/sort/bubble.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn bubble_sort(nums: &mut [i32]) {
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `selection_sort` is never used
[INFO] [stdout]  --> src/sort/selection.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn selection_sort(nums: &mut [i32]) {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `insertion_sort` is never used
[INFO] [stdout]  --> src/sort/insertion.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn insertion_sort(nums: &mut [i32]) {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `KHash` is never used
[INFO] [stdout]  --> src/hashmap.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | trait KHash: Eq + Clone {
[INFO] [stdout]   |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Slot` is never used
[INFO] [stdout]  --> src/hashmap.rs:7:6
[INFO] [stdout]   |
[INFO] [stdout] 7 | enum Slot<K, V> {
[INFO] [stdout]   |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `KMap` is never constructed
[INFO] [stdout]   --> src/hashmap.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct KMap<K, V> where K: KHash {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `insert`, and `get` are never used
[INFO] [stdout]   --> src/hashmap.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | / impl<K, V> KMap<K, V>
[INFO] [stdout] 19 | |     where K: KHash,
[INFO] [stdout] 20 | |           V: Clone {
[INFO] [stdout]    | |__________________- associated items in this implementation
[INFO] [stdout] 21 |       fn new() -> KMap<K, V> {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] ...
[INFO] [stdout] 30 |       fn insert(&mut self, key: K, value: V) {
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 52 |       fn get<Q>(&self, key: &Q) -> Option<&V>
[INFO] [stdout]    |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `k`
[INFO] [stdout]   --> src/hashmap.rs:47:23
[INFO] [stdout]    |
[INFO] [stdout] 47 |                 Some((k, v)) => *v = value,
[INFO] [stdout]    |                       ^ help: if this is intentional, prefix it with an underscore: `_k`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `load` is never read
[INFO] [stdout]   --> src/hashmap.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct KMap<K, V> where K: KHash {
[INFO] [stdout]    |        ---- field in this struct
[INFO] [stdout] 14 |     slots: Vec<Slot<K, V>>,
[INFO] [stdout] 15 |     load: usize,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "ac8e7edff8aa079e487dcfc7cc95a5e0f9e829b9067365f50f4921886cdbf408", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac8e7edff8aa079e487dcfc7cc95a5e0f9e829b9067365f50f4921886cdbf408", kill_on_drop: false }`
[INFO] [stdout] ac8e7edff8aa079e487dcfc7cc95a5e0f9e829b9067365f50f4921886cdbf408
