[INFO] cloning repository https://github.com/muehlbacher/algorithms_rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/muehlbacher/algorithms_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmuehlbacher%2Falgorithms_rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmuehlbacher%2Falgorithms_rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 8c2c74cdbe3cf35b59f419ae23c28fc2a33d83f0 [INFO] checking muehlbacher/algorithms_rust against try#6cbf54b1453b438241487f195740266bb9d8c8ba for pr-139587-2 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmuehlbacher%2Falgorithms_rust" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/muehlbacher/algorithms_rust on toolchain 6cbf54b1453b438241487f195740266bb9d8c8ba [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6cbf54b1453b438241487f195740266bb9d8c8ba" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/muehlbacher/algorithms_rust [INFO] finished tweaking git repo https://github.com/muehlbacher/algorithms_rust [INFO] tweaked toml for git repo https://github.com/muehlbacher/algorithms_rust written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/muehlbacher/algorithms_rust 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" "+6cbf54b1453b438241487f195740266bb9d8c8ba" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+6cbf54b1453b438241487f195740266bb9d8c8ba" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e432eab3243a8526b080703a11ea382cd00fe0f84503cae016e2cbea980ecc79 [INFO] running `Command { std: "docker" "start" "-a" "e432eab3243a8526b080703a11ea382cd00fe0f84503cae016e2cbea980ecc79", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e432eab3243a8526b080703a11ea382cd00fe0f84503cae016e2cbea980ecc79", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e432eab3243a8526b080703a11ea382cd00fe0f84503cae016e2cbea980ecc79", kill_on_drop: false }` [INFO] [stdout] e432eab3243a8526b080703a11ea382cd00fe0f84503cae016e2cbea980ecc79 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+6cbf54b1453b438241487f195740266bb9d8c8ba" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e45516663b09b3df25b806e0dd29f4a084f3a56d9087b5c50b816319f1a03e57 [INFO] running `Command { std: "docker" "start" "-a" "e45516663b09b3df25b806e0dd29f4a084f3a56d9087b5c50b816319f1a03e57", kill_on_drop: false }` [INFO] [stderr] Checking algorithms v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `value` [INFO] [stdout] --> src/hash_table_n.rs:51:39 [INFO] [stdout] | [INFO] [stdout] 51 | while let Some((existing_key, value)) = &self.buckets[index] { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_value` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `TreeNode` is never constructed [INFO] [stdout] --> src/binary_tree.rs:2:8 [INFO] [stdout] | [INFO] [stdout] 2 | struct TreeNode { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `insert_left`, and `insert_right` are never used [INFO] [stdout] --> src/binary_tree.rs:9:8 [INFO] [stdout] | [INFO] [stdout] 8 | impl TreeNode { [INFO] [stdout] | ------------------- associated items in this implementation [INFO] [stdout] 9 | fn new(value: T) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 16 | fn insert_left(&mut self, value: T) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 20 | fn insert_right(&mut self, value: T) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `INITIAL_CAPACITY` is never used [INFO] [stdout] --> src/hash_table.rs:4:7 [INFO] [stdout] | [INFO] [stdout] 4 | const INITIAL_CAPACITY: usize = 16; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `HashTable` is never constructed [INFO] [stdout] --> src/hash_table.rs:6:8 [INFO] [stdout] | [INFO] [stdout] 6 | struct HashTable { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `hash`, `insert`, `get`, and `remove` are never used [INFO] [stdout] --> src/hash_table.rs:12:8 [INFO] [stdout] | [INFO] [stdout] 11 | impl HashTable { [INFO] [stdout] | ---------------------------------------------------- associated items in this implementation [INFO] [stdout] 12 | fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 20 | fn hash(&self, key: &K) -> usize { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 26 | fn insert(&mut self, key: K, value: V) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 39 | fn get(&self, key: &K) -> Option<&V> { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 51 | fn remove(&mut self, key: &K) -> Option { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `INITIAL_CAPACITY` is never used [INFO] [stdout] --> src/hash_table_n.rs:4:7 [INFO] [stdout] | [INFO] [stdout] 4 | const INITIAL_CAPACITY: usize = 16; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `HashTable` is never constructed [INFO] [stdout] --> src/hash_table_n.rs:6:8 [INFO] [stdout] | [INFO] [stdout] 6 | struct HashTable { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `hash`, `insert`, `get`, and `remove` are never used [INFO] [stdout] --> src/hash_table_n.rs:12:8 [INFO] [stdout] | [INFO] [stdout] 11 | impl HashTable { [INFO] [stdout] | ---------------------------------------------------- associated items in this implementation [INFO] [stdout] 12 | fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 19 | fn hash(&self, key: &K) -> usize { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 25 | fn insert(&mut self, key: K, value: V) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 38 | fn get(&self, key: &K) -> Option<&V> { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 49 | fn remove(&mut self, key: &K) -> Option { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `More` is never constructed [INFO] [stdout] --> src/linkedlist.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 7 | enum Link { [INFO] [stdout] | ---- variant in this enum [INFO] [stdout] 8 | Empty, [INFO] [stdout] 9 | More(Box), [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `elem` is never read [INFO] [stdout] --> src/linkedlist.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 11 | struct Node { [INFO] [stdout] | ---- field in this struct [INFO] [stdout] 12 | elem: i32, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `push`, and `pop` are never used [INFO] [stdout] --> src/linkedlist.rs:17:12 [INFO] [stdout] | [INFO] [stdout] 16 | impl List { [INFO] [stdout] | --------- associated items in this implementation [INFO] [stdout] 17 | pub fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 20 | pub fn push(&mut self, elem: i32) { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 28 | pub fn pop(&mut self) -> Option { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `value` [INFO] [stdout] --> src/hash_table_n.rs:51:39 [INFO] [stdout] | [INFO] [stdout] 51 | while let Some((existing_key, value)) = &self.buckets[index] { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_value` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `value` is never read [INFO] [stdout] --> src/binary_tree.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 2 | struct TreeNode { [INFO] [stdout] | -------- field in this struct [INFO] [stdout] 3 | value: T, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `TreeNode` 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] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.21s [INFO] running `Command { std: "docker" "inspect" "e45516663b09b3df25b806e0dd29f4a084f3a56d9087b5c50b816319f1a03e57", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e45516663b09b3df25b806e0dd29f4a084f3a56d9087b5c50b816319f1a03e57", kill_on_drop: false }` [INFO] [stdout] e45516663b09b3df25b806e0dd29f4a084f3a56d9087b5c50b816319f1a03e57