[INFO] cloning repository https://github.com/cdavidr1/algos_in_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cdavidr1/algos_in_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcdavidr1%2Falgos_in_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcdavidr1%2Falgos_in_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9970867149721d78bf8be039631b00b1dfaf5731
[INFO] testing cdavidr1/algos_in_rust against master#733b47ea4b1b86216f14ef56e49440c33933f230+rustflags=-Copt-level=3 for pr-138759
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcdavidr1%2Falgos_in_rust" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/cdavidr1/algos_in_rust
[INFO] finished tweaking git repo https://github.com/cdavidr1/algos_in_rust
[INFO] tweaked toml for git repo https://github.com/cdavidr1/algos_in_rust written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/cdavidr1/algos_in_rust on toolchain 733b47ea4b1b86216f14ef56e49440c33933f230
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/cdavidr1/algos_in_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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7beaba7ff1557fe6430239e036a65caf89eef5e98aa513cd3b9458567792eae9
[INFO] running `Command { std: "docker" "start" "-a" "7beaba7ff1557fe6430239e036a65caf89eef5e98aa513cd3b9458567792eae9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7beaba7ff1557fe6430239e036a65caf89eef5e98aa513cd3b9458567792eae9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7beaba7ff1557fe6430239e036a65caf89eef5e98aa513cd3b9458567792eae9", kill_on_drop: false }`
[INFO] [stdout] 7beaba7ff1557fe6430239e036a65caf89eef5e98aa513cd3b9458567792eae9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f1af3531a022d295796a5da9cde3d243185df9f98b266bf265888f7e18b8b74c
[INFO] running `Command { std: "docker" "start" "-a" "f1af3531a022d295796a5da9cde3d243185df9f98b266bf265888f7e18b8b74c", kill_on_drop: false }`
[INFO] [stderr]    Compiling algos_in_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::vertex::Vertex`
[INFO] [stdout]  --> src/graph/edge.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::vertex::Vertex;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/segment_tree/segment_tree.rs:151:23
[INFO] [stdout]     |
[INFO] [stdout] 151 |             let mid = (left + right);
[INFO] [stdout]     |                       ^            ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 151 -             let mid = (left + right);
[INFO] [stdout] 151 +             let mid = left + right;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Dsu` is never constructed
[INFO] [stdout]   --> src/dsu/dsu.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct Dsu {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `make_set`, and `find_set` are never used
[INFO] [stdout]   --> src/dsu/dsu.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 21 | impl Dsu {
[INFO] [stdout]    | -------- associated items in this implementation
[INFO] [stdout] 22 |     pub fn new(size: usize) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub fn make_set(&mut self, v: i32) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     pub fn find_set(&self, v: i32) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FenwickTree` is never constructed
[INFO] [stdout]  --> src/fenwick_tree/fenwick_tree.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct FenwickTree {
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `construct_and_build`, `new`, `add`, `range_sum_from_zero`, and `range_sum` are never used
[INFO] [stdout]   --> src/fenwick_tree/fenwick_tree.rs:6:8
[INFO] [stdout]    |
[INFO] [stdout] 5  | impl FenwickTree {
[INFO] [stdout]    | ---------------- associated items in this implementation
[INFO] [stdout] 6  |     fn construct_and_build(input: &[i32]) -> Self {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 13 |     fn new(input: &[i32]) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     fn add(&mut self, mut idx: usize, delta: i32) {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |     fn range_sum_from_zero(&self, mut r: usize) -> i32 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     fn range_sum(&self, l: usize, r: usize) -> i32 {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/fenwick_tree/fenwick_tree.rs:47:4
[INFO] [stdout]    |
[INFO] [stdout] 47 | fn main() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Edge` is never constructed
[INFO] [stdout]  --> src/graph/edge.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Edge {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]  --> src/graph/edge.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | impl Edge {
[INFO] [stdout]   | --------- associated function in this implementation
[INFO] [stdout] 8 |     pub fn new(start: usize, end: usize, weight: Option<i32>) -> Self {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Graph` is never constructed
[INFO] [stdout]  --> src/graph/graph.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Graph {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]   --> src/graph/graph.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Graph {
[INFO] [stdout]    | ---------- associated items in this implementation
[INFO] [stdout] 11 |     fn new(is_weighted: bool, is_directed: bool) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     fn add_vertex(&mut self, data: String) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     fn add_edge(&mut self, from_id: usize, to_id: usize, _weight: Option<i32>) {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 43 |     fn remove_edge(&mut self, from_id: usize, to_id: usize) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 60 |     fn remove_vertex(&mut self, vertex_id: usize) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 70 |     fn get_vertex_by_value(&self, value: String) -> Option<&Vertex> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 73 |     fn get_vertex(&self, id: usize) -> Option<&Vertex> {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 76 |     pub fn print(self, is_weighted: bool) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/graph/graph.rs:100:4
[INFO] [stdout]     |
[INFO] [stdout] 100 | fn main() {}
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Vertex` is never constructed
[INFO] [stdout]  --> src/graph/vertex.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Vertex {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `add_edge`, `remove_edge`, and `get_data` are never used
[INFO] [stdout]   --> src/graph/vertex.rs:8:12
[INFO] [stdout]    |
[INFO] [stdout] 7  | impl Vertex {
[INFO] [stdout]    | ----------- associated items in this implementation
[INFO] [stdout] 8  |     pub fn new(id: usize, data: String) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 15 |     pub fn add_edge(&mut self, end: usize, weight: Option<i32>) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 18 |     pub fn remove_edge(&mut self, end: usize) {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 21 |     pub fn get_data(&self) -> &str {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Queue` is never constructed
[INFO] [stdout]  --> src/queue/queue.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Queue<T> {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]   --> src/queue/queue.rs:9:8
[INFO] [stdout]    |
[INFO] [stdout] 8  | impl<T> Queue<T> {
[INFO] [stdout]    | ---------------- associated items in this implementation
[INFO] [stdout] 9  |     fn default() -> Self {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 15 |     fn enqueue(&mut self, elem: T) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     fn dequeue(&mut self) -> Option<T> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     fn peek(&self) -> &T {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |     fn contains(&self, elem: T) -> bool
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     fn remove(&mut self, index: usize) -> Option<T> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     fn is_empty(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 38 |     fn size(&self) -> usize {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/segment_tree/segment_tree.rs:199:4
[INFO] [stdout]     |
[INFO] [stdout] 199 | fn main() {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Max`, `Sum`, `GCD`, `LCM`, and `Zeros` are never constructed
[INFO] [stdout]  --> src/segment_tree/segment_tree.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     pub enum Function {
[INFO] [stdout]   |              -------- variants in this enum
[INFO] [stdout] 4 |         Max,
[INFO] [stdout]   |         ^^^
[INFO] [stdout] 5 |         Min,
[INFO] [stdout] 6 |         Sum,
[INFO] [stdout]   |         ^^^
[INFO] [stdout] 7 |         GCD,
[INFO] [stdout]   |         ^^^
[INFO] [stdout] 8 |         LCM,
[INFO] [stdout]   |         ^^^
[INFO] [stdout] 9 |         Zeros,
[INFO] [stdout]   |         ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Function` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_power_of_two` is never used
[INFO] [stdout]   --> src/segment_tree/segment_tree.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn is_power_of_two(n: usize) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `update`, `update_helper`, `print_tree_structure`, and `find_kth_zero` are never used
[INFO] [stdout]    --> src/segment_tree/segment_tree.rs:94:16
[INFO] [stdout]     |
[INFO] [stdout] 37  |     impl SegmentTree {
[INFO] [stdout]     |     ---------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 94  |         pub fn update(&mut self, index: usize, value: i32) {
[INFO] [stdout]     |                ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 98  |         fn update_helper(
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 163 |         pub fn print_tree_structure(&self) {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 178 |         fn find_kth_zero(&self, v: usize, left: usize, right: usize, k: i32) -> Option<usize> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Stack` is never constructed
[INFO] [stdout]  --> src/stack/stack.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Stack<T> {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `default`, `push`, `pop`, `peek`, `size`, and `is_empty` are never used
[INFO] [stdout]   --> src/stack/stack.rs:6:8
[INFO] [stdout]    |
[INFO] [stdout] 5  | impl<T> Stack<T> {
[INFO] [stdout]    | ---------------- associated items in this implementation
[INFO] [stdout] 6  |     fn default() -> Self {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 10 |     fn push(&mut self, elem: T) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 14 |     fn pop(&mut self) -> Option<T> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 18 |     fn peek(&self) -> Option<&T> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 22 |     fn size(&self) -> usize {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |     fn is_empty(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "f1af3531a022d295796a5da9cde3d243185df9f98b266bf265888f7e18b8b74c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1af3531a022d295796a5da9cde3d243185df9f98b266bf265888f7e18b8b74c", kill_on_drop: false }`
[INFO] [stdout] f1af3531a022d295796a5da9cde3d243185df9f98b266bf265888f7e18b8b74c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d56035fa4f199fae2b28a8195a5b6fabd8ee6595c672e12bcd1be6f59b93d7c6
[INFO] running `Command { std: "docker" "start" "-a" "d56035fa4f199fae2b28a8195a5b6fabd8ee6595c672e12bcd1be6f59b93d7c6", kill_on_drop: false }`
[INFO] [stderr]    Compiling algos_in_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/fenwick_tree/fenwick_tree.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::vertex::Vertex`
[INFO] [stdout]  --> src/graph/edge.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::vertex::Vertex;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/segment_tree/segment_tree.rs:151:23
[INFO] [stdout]     |
[INFO] [stdout] 151 |             let mid = (left + right);
[INFO] [stdout]     |                       ^            ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 151 -             let mid = (left + right);
[INFO] [stdout] 151 +             let mid = left + right;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/dsu/dsu.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 55 |         assert!(todo!());
[INFO] [stdout]    |         ^^^^^^^^-------^
[INFO] [stdout]    |         |       |
[INFO] [stdout]    |         |       any code following this expression is unreachable
[INFO] [stdout]    |         unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/dsu/dsu.rs:60:9
[INFO] [stdout]    |
[INFO] [stdout] 60 |         assert!(todo!());
[INFO] [stdout]    |         ^^^^^^^^-------^
[INFO] [stdout]    |         |       |
[INFO] [stdout]    |         |       any code following this expression is unreachable
[INFO] [stdout]    |         unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/queue/queue.rs:48:13
[INFO] [stdout]    |
[INFO] [stdout] 48 |         let mut q = Queue::default();
[INFO] [stdout]    |             ----^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/queue/queue.rs:54:13
[INFO] [stdout]    |
[INFO] [stdout] 54 |         let mut c = create_q();
[INFO] [stdout]    |             ----^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/queue/queue.rs:60:13
[INFO] [stdout]    |
[INFO] [stdout] 60 |         let mut c = create_q();
[INFO] [stdout]    |             ----^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FenwickTree` is never constructed
[INFO] [stdout]  --> src/fenwick_tree/fenwick_tree.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct FenwickTree {
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `construct_and_build`, `new`, `add`, `range_sum_from_zero`, and `range_sum` are never used
[INFO] [stdout]   --> src/fenwick_tree/fenwick_tree.rs:6:8
[INFO] [stdout]    |
[INFO] [stdout] 5  | impl FenwickTree {
[INFO] [stdout]    | ---------------- associated items in this implementation
[INFO] [stdout] 6  |     fn construct_and_build(input: &[i32]) -> Self {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 13 |     fn new(input: &[i32]) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     fn add(&mut self, mut idx: usize, delta: i32) {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |     fn range_sum_from_zero(&self, mut r: usize) -> i32 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     fn range_sum(&self, l: usize, r: usize) -> i32 {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/fenwick_tree/fenwick_tree.rs:47:4
[INFO] [stdout]    |
[INFO] [stdout] 47 | fn main() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Edge` is never constructed
[INFO] [stdout]  --> src/graph/edge.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Edge {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]  --> src/graph/edge.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | impl Edge {
[INFO] [stdout]   | --------- associated function in this implementation
[INFO] [stdout] 8 |     pub fn new(start: usize, end: usize, weight: Option<i32>) -> Self {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Graph` is never constructed
[INFO] [stdout]  --> src/graph/graph.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Graph {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]   --> src/graph/graph.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Graph {
[INFO] [stdout]    | ---------- associated items in this implementation
[INFO] [stdout] 11 |     fn new(is_weighted: bool, is_directed: bool) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     fn add_vertex(&mut self, data: String) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     fn add_edge(&mut self, from_id: usize, to_id: usize, _weight: Option<i32>) {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 43 |     fn remove_edge(&mut self, from_id: usize, to_id: usize) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 60 |     fn remove_vertex(&mut self, vertex_id: usize) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 70 |     fn get_vertex_by_value(&self, value: String) -> Option<&Vertex> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 73 |     fn get_vertex(&self, id: usize) -> Option<&Vertex> {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 76 |     pub fn print(self, is_weighted: bool) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/graph/graph.rs:100:4
[INFO] [stdout]     |
[INFO] [stdout] 100 | fn main() {}
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Vertex` is never constructed
[INFO] [stdout]  --> src/graph/vertex.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Vertex {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `add_edge`, `remove_edge`, and `get_data` are never used
[INFO] [stdout]   --> src/graph/vertex.rs:8:12
[INFO] [stdout]    |
[INFO] [stdout] 7  | impl Vertex {
[INFO] [stdout]    | ----------- associated items in this implementation
[INFO] [stdout] 8  |     pub fn new(id: usize, data: String) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 15 |     pub fn add_edge(&mut self, end: usize, weight: Option<i32>) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 18 |     pub fn remove_edge(&mut self, end: usize) {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 21 |     pub fn get_data(&self) -> &str {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/segment_tree/segment_tree.rs:199:4
[INFO] [stdout]     |
[INFO] [stdout] 199 | fn main() {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Sum`, `GCD`, `LCM`, and `Zeros` are never constructed
[INFO] [stdout]  --> src/segment_tree/segment_tree.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     pub enum Function {
[INFO] [stdout]   |              -------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 6 |         Sum,
[INFO] [stdout]   |         ^^^
[INFO] [stdout] 7 |         GCD,
[INFO] [stdout]   |         ^^^
[INFO] [stdout] 8 |         LCM,
[INFO] [stdout]   |         ^^^
[INFO] [stdout] 9 |         Zeros,
[INFO] [stdout]   |         ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Function` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_power_of_two` is never used
[INFO] [stdout]   --> src/segment_tree/segment_tree.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn is_power_of_two(n: usize) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `update`, `update_helper`, `print_tree_structure`, and `find_kth_zero` are never used
[INFO] [stdout]    --> src/segment_tree/segment_tree.rs:94:16
[INFO] [stdout]     |
[INFO] [stdout] 37  |     impl SegmentTree {
[INFO] [stdout]     |     ---------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 94  |         pub fn update(&mut self, index: usize, value: i32) {
[INFO] [stdout]     |                ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 98  |         fn update_helper(
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 163 |         pub fn print_tree_structure(&self) {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 178 |         fn find_kth_zero(&self, v: usize, left: usize, right: usize, k: i32) -> Option<usize> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `Command { std: "docker" "inspect" "d56035fa4f199fae2b28a8195a5b6fabd8ee6595c672e12bcd1be6f59b93d7c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d56035fa4f199fae2b28a8195a5b6fabd8ee6595c672e12bcd1be6f59b93d7c6", kill_on_drop: false }`
[INFO] [stdout] d56035fa4f199fae2b28a8195a5b6fabd8ee6595c672e12bcd1be6f59b93d7c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e9ea70117c48313ef427c0241c3a64cedd6ae70dcbd63507a6809126937235ad
[INFO] running `Command { std: "docker" "start" "-a" "e9ea70117c48313ef427c0241c3a64cedd6ae70dcbd63507a6809126937235ad", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]   --> src/fenwick_tree/fenwick_tree.rs:59:9
[INFO] [stderr]    |
[INFO] [stderr] 59 |     use super::*;
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::vertex::Vertex`
[INFO] [stderr]  --> src/graph/edge.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use super::vertex::Vertex;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/segment_tree/segment_tree.rs:151:23
[INFO] [stderr]     |
[INFO] [stderr] 151 |             let mid = (left + right);
[INFO] [stderr]     |                       ^            ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 151 -             let mid = (left + right);
[INFO] [stderr] 151 +             let mid = left + right;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]   --> src/dsu/dsu.rs:55:9
[INFO] [stderr]    |
[INFO] [stderr] 55 |         assert!(todo!());
[INFO] [stderr]    |         ^^^^^^^^-------^
[INFO] [stderr]    |         |       |
[INFO] [stderr]    |         |       any code following this expression is unreachable
[INFO] [stderr]    |         unreachable expression
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]   --> src/dsu/dsu.rs:60:9
[INFO] [stderr]    |
[INFO] [stderr] 60 |         assert!(todo!());
[INFO] [stderr]    |         ^^^^^^^^-------^
[INFO] [stderr]    |         |       |
[INFO] [stderr]    |         |       any code following this expression is unreachable
[INFO] [stderr]    |         unreachable expression
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/queue/queue.rs:48:13
[INFO] [stderr]    |
[INFO] [stderr] 48 |         let mut q = Queue::default();
[INFO] [stderr]    |             ----^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/queue/queue.rs:54:13
[INFO] [stderr]    |
[INFO] [stderr] 54 |         let mut c = create_q();
[INFO] [stderr]    |             ----^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/queue/queue.rs:60:13
[INFO] [stderr]    |
[INFO] [stderr] 60 |         let mut c = create_q();
[INFO] [stderr]    |             ----^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: struct `FenwickTree` is never constructed
[INFO] [stderr]  --> src/fenwick_tree/fenwick_tree.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | struct FenwickTree {
[INFO] [stderr]   |        ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `construct_and_build`, `new`, `add`, `range_sum_from_zero`, and `range_sum` are never used
[INFO] [stderr]   --> src/fenwick_tree/fenwick_tree.rs:6:8
[INFO] [stderr]    |
[INFO] [stderr] 5  | impl FenwickTree {
[INFO] [stderr]    | ---------------- associated items in this implementation
[INFO] [stderr] 6  |     fn construct_and_build(input: &[i32]) -> Self {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 13 |     fn new(input: &[i32]) -> Self {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] ...
[INFO] [stderr] 19 |     fn add(&mut self, mut idx: usize, delta: i32) {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] ...
[INFO] [stderr] 26 |     fn range_sum_from_zero(&self, mut r: usize) -> i32 {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 39 |     fn range_sum(&self, l: usize, r: usize) -> i32 {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `main` is never used
[INFO] [stderr]   --> src/fenwick_tree/fenwick_tree.rs:47:4
[INFO] [stderr]    |
[INFO] [stderr] 47 | fn main() {
[INFO] [stderr]    |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Edge` is never constructed
[INFO] [stderr]  --> src/graph/edge.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub struct Edge {
[INFO] [stderr]   |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]  --> src/graph/edge.rs:8:12
[INFO] [stderr]   |
[INFO] [stderr] 7 | impl Edge {
[INFO] [stderr]   | --------- associated function in this implementation
[INFO] [stderr] 8 |     pub fn new(start: usize, end: usize, weight: Option<i32>) -> Self {
[INFO] [stderr]   |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Graph` is never constructed
[INFO] [stderr]  --> src/graph/graph.rs:4:8
[INFO] [stderr]   |
[INFO] [stderr] 4 | struct Graph {
[INFO] [stderr]   |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: multiple associated items are never used
[INFO] [stderr]   --> src/graph/graph.rs:11:8
[INFO] [stderr]    |
[INFO] [stderr] 10 | impl Graph {
[INFO] [stderr]    | ---------- associated items in this implementation
[INFO] [stderr] 11 |     fn new(is_weighted: bool, is_directed: bool) -> Self {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] ...
[INFO] [stderr] 19 |     fn add_vertex(&mut self, data: String) {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 28 |     fn add_edge(&mut self, from_id: usize, to_id: usize, _weight: Option<i32>) {
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 43 |     fn remove_edge(&mut self, from_id: usize, to_id: usize) {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 60 |     fn remove_vertex(&mut self, vertex_id: usize) {
[INFO] [stderr]    |        ^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 70 |     fn get_vertex_by_value(&self, value: String) -> Option<&Vertex> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 73 |     fn get_vertex(&self, id: usize) -> Option<&Vertex> {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 76 |     pub fn print(self, is_weighted: bool) {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `main` is never used
[INFO] [stderr]    --> src/graph/graph.rs:100:4
[INFO] [stderr]     |
[INFO] [stderr] 100 | fn main() {}
[INFO] [stderr]     |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Vertex` is never constructed
[INFO] [stderr]  --> src/graph/vertex.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub struct Vertex {
[INFO] [stderr]   |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `add_edge`, `remove_edge`, and `get_data` are never used
[INFO] [stderr]   --> src/graph/vertex.rs:8:12
[INFO] [stderr]    |
[INFO] [stderr] 7  | impl Vertex {
[INFO] [stderr]    | ----------- associated items in this implementation
[INFO] [stderr] 8  |     pub fn new(id: usize, data: String) -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 15 |     pub fn add_edge(&mut self, end: usize, weight: Option<i32>) {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 18 |     pub fn remove_edge(&mut self, end: usize) {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 21 |     pub fn get_data(&self) -> &str {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `main` is never used
[INFO] [stderr]    --> src/segment_tree/segment_tree.rs:199:4
[INFO] [stderr]     |
[INFO] [stderr] 199 | fn main() {
[INFO] [stderr]     |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variants `Sum`, `GCD`, `LCM`, and `Zeros` are never constructed
[INFO] [stderr]  --> src/segment_tree/segment_tree.rs:6:9
[INFO] [stderr]   |
[INFO] [stderr] 3 |     pub enum Function {
[INFO] [stderr]   |              -------- variants in this enum
[INFO] [stderr] ...
[INFO] [stderr] 6 |         Sum,
[INFO] [stderr]   |         ^^^
[INFO] [stderr] 7 |         GCD,
[INFO] [stderr]   |         ^^^
[INFO] [stderr] 8 |         LCM,
[INFO] [stderr]   |         ^^^
[INFO] [stderr] 9 |         Zeros,
[INFO] [stderr]   |         ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `Function` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: function `is_power_of_two` is never used
[INFO] [stderr]   --> src/segment_tree/segment_tree.rs:12:12
[INFO] [stderr]    |
[INFO] [stderr] 12 |     pub fn is_power_of_two(n: usize) -> bool {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: methods `update`, `update_helper`, `print_tree_structure`, and `find_kth_zero` are never used
[INFO] [stderr]    --> src/segment_tree/segment_tree.rs:94:16
[INFO] [stderr]     |
[INFO] [stderr] 37  |     impl SegmentTree {
[INFO] [stderr]     |     ---------------- methods in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 94  |         pub fn update(&mut self, index: usize, value: i32) {
[INFO] [stderr]     |                ^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 98  |         fn update_helper(
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 163 |         pub fn print_tree_structure(&self) {
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 178 |         fn find_kth_zero(&self, v: usize, left: usize, right: usize, k: i32) -> Option<usize> {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `algos_in_rust` (bin "algos_in_rust" test) generated 22 warnings (run `cargo fix --bin "algos_in_rust" --tests` to apply 6 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/algos_in_rust-acd7ccef0ba2881e)
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test dsu::dsu::tests::create_element ... ok
[INFO] [stdout] test queue::queue::tests::test_peek ... ok
[INFO] [stdout] test queue::queue::tests::test_remove ... ok
[INFO] [stdout] test segment_tree::segment_tree::tests::seg_tree_constructs ... ok
[INFO] [stdout] test queue::queue::tests::test_create_q ... ok
[INFO] [stdout] test queue::queue::tests::test_dequeue ... ok
[INFO] [stdout] test queue::queue::tests::test_is_empty ... ok
[INFO] [stdout] test stack::stack::tests::test_not_empty ... ok
[INFO] [stdout] test stack::stack::tests::test_pop ... ok
[INFO] [stdout] test stack::stack::tests::test_peek ... ok
[INFO] [stdout] test stack::stack::tests::test_size ... ok
[INFO] [stdout] test dsu::dsu::tests::find_representative ... FAILED
[INFO] [stdout] test dsu::dsu::tests::merge_two_sets ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- dsu::dsu::tests::find_representative stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'dsu::dsu::tests::find_representative' panicked at src/dsu/dsu.rs:60:17:
[INFO] [stdout] not yet implemented
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5c98bb72a8e2 - std::backtrace_rs::backtrace::libunwind::trace::h73a647620bf1c49d
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5c98bb72a8e2 - std::backtrace_rs::backtrace::trace_unsynchronized::hd4d513ed96cb3cb1
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5c98bb72a8e2 - std::sys::backtrace::_print_fmt::h61bb95f7476aafa5
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x5c98bb72a8e2 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::ha2e7e3a01df69042
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x5c98bb74f9d3 - core::fmt::rt::Argument::fmt::hf14163372f0f9a76
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x5c98bb74f9d3 - core::fmt::write::h7cb8f63788cd01d2
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/fmt/mod.rs:1465:25
[INFO] [stdout]    6:     0x5c98bb727873 - std::io::default_write_fmt::h9ed739ccee8a150c
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x5c98bb727873 - std::io::Write::write_fmt::h1c0a32da913b32f1
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x5c98bb72a732 - std::sys::backtrace::BacktraceLock::print::h3ec4d7883eb25e61
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x5c98bb72be4c - std::panicking::default_hook::{{closure}}::h29548987efd832cb
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:300:27
[INFO] [stdout]   10:     0x5c98bb72bca2 - std::panicking::default_hook::ha25170a15c643514
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:324:9
[INFO] [stdout]   11:     0x5c98bb6f3dc4 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h562adeecbf43c420
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   12:     0x5c98bb6f3dc4 - test::test_main_with_exit_callback::{{closure}}::h97dd2a879d27e0e4
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x5c98bb72c82b - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h7e85cbdbda26fdb7
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   14:     0x5c98bb72c82b - std::panicking::rust_panic_with_hook::h0d81afcd829aa24b
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:841:13
[INFO] [stdout]   15:     0x5c98bb72c5c6 - std::panicking::begin_panic_handler::{{closure}}::hc84a33f1202346cf
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:699:13
[INFO] [stdout]   16:     0x5c98bb72add9 - std::sys::backtrace::__rust_end_short_backtrace::h373067a14f6c59aa
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:168:18
[INFO] [stdout]   17:     0x5c98bb72c28d - __rustc[beb0385846a06d21]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:697:5
[INFO] [stdout]   18:     0x5c98bb74e520 - core::panicking::panic_fmt::ha33fa2ae772efba9
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/panicking.rs:75:14
[INFO] [stdout]   19:     0x5c98bb74e58c - core::panicking::panic::hd2a569f4f37f7e10
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/panicking.rs:145:5
[INFO] [stdout]   20:     0x5c98bb6ba46a - algos_in_rust::dsu::dsu::tests::find_representative::h8f8741c4c8246c1f
[INFO] [stdout]                                at /opt/rustwide/workdir/src/dsu/dsu.rs:60:17
[INFO] [stdout]   21:     0x5c98bb6ba46a - algos_in_rust::dsu::dsu::tests::find_representative::{{closure}}::hbf721864e7a69ffc
[INFO] [stdout]                                at /opt/rustwide/workdir/src/dsu/dsu.rs:59:29
[INFO] [stdout]   22:     0x5c98bb6ba46a - core::ops::function::FnOnce::call_once::hf21bf7a29616e3b8
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   23:     0x5c98bb6f94fb - core::ops::function::FnOnce::call_once::hf84b9c3d864a6959
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x5c98bb6f94fb - test::__rust_begin_short_backtrace::h5724e31441c16fcb
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:648:18
[INFO] [stdout]   25:     0x5c98bb6f873e - test::run_test_in_process::{{closure}}::hbc28c9aa91793d7d
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:671:74
[INFO] [stdout]   26:     0x5c98bb6f873e - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hc17b0e238c0f8f3e
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   27:     0x5c98bb6f873e - std::panicking::catch_unwind::do_call::hcdbce0d6dd6c83ce
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:589:40
[INFO] [stdout]   28:     0x5c98bb6f873e - std::panicking::catch_unwind::h9477967ceea044e8
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:552:19
[INFO] [stdout]   29:     0x5c98bb6f873e - std::panic::catch_unwind::h616a2e249da12e16
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panic.rs:359:14
[INFO] [stdout]   30:     0x5c98bb6f873e - test::run_test_in_process::h2758deb0f2e54430
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:671:27
[INFO] [stdout]   31:     0x5c98bb6f873e - test::run_test::{{closure}}::habe5cd2564b18aaa
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:592:43
[INFO] [stdout]   32:     0x5c98bb6bc2e4 - test::run_test::{{closure}}::h9a0a6928f1a15421
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:622:41
[INFO] [stdout]   33:     0x5c98bb6bc2e4 - std::sys::backtrace::__rust_begin_short_backtrace::hd68b5332434a22ca
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:152:18
[INFO] [stdout]   34:     0x5c98bb6bfc8a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h264ddcc3098eacae
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/thread/mod.rs:559:17
[INFO] [stdout]   35:     0x5c98bb6bfc8a - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h9fa39489749d6f3c
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   36:     0x5c98bb6bfc8a - std::panicking::catch_unwind::do_call::hb9a1944b9f85100f
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:589:40
[INFO] [stdout]   37:     0x5c98bb6bfc8a - std::panicking::catch_unwind::h0c6f100786c0dad8
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:552:19
[INFO] [stdout]   38:     0x5c98bb6bfc8a - std::panic::catch_unwind::hf6084e2723385823
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panic.rs:359:14
[INFO] [stdout]   39:     0x5c98bb6bfc8a - std::thread::Builder::spawn_unchecked_::{{closure}}::hf0af58ce658143ad
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/thread/mod.rs:557:30
[INFO] [stdout]   40:     0x5c98bb6bfc8a - core::ops::function::FnOnce::call_once{{vtable.shim}}::h88a14f9b2e79f9de
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   41:     0x5c98bb72f787 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hf31256ba38644b65
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/boxed.rs:1971:9
[INFO] [stdout]   42:     0x5c98bb72f787 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h100ad77f3448041b
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/boxed.rs:1971:9
[INFO] [stdout]   43:     0x5c98bb72f787 - std::sys::pal::unix::thread::Thread::new::thread_start::h1a22ded422ce395b
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/pal/unix/thread.rs:97:17
[INFO] [stdout]   44:     0x79887adf2aa4 - <unknown>
[INFO] [stdout]   45:     0x79887ae7fa34 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- dsu::dsu::tests::merge_two_sets stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'dsu::dsu::tests::merge_two_sets' panicked at src/dsu/dsu.rs:55:17:
[INFO] [stdout] not yet implemented
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5c98bb72a8e2 - std::backtrace_rs::backtrace::libunwind::trace::h73a647620bf1c49d
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5c98bb72a8e2 - std::backtrace_rs::backtrace::trace_unsynchronized::hd4d513ed96cb3cb1
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5c98bb72a8e2 - std::sys::backtrace::_print_fmt::h61bb95f7476aafa5
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x5c98bb72a8e2 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::ha2e7e3a01df69042
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x5c98bb74f9d3 - core::fmt::rt::Argument::fmt::hf14163372f0f9a76
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x5c98bb74f9d3 - core::fmt::write::h7cb8f63788cd01d2
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/fmt/mod.rs:1465:25
[INFO] [stdout]    6:     0x5c98bb727873 - std::io::default_write_fmt::h9ed739ccee8a150c
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x5c98bb727873 - std::io::Write::write_fmt::h1c0a32da913b32f1
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x5c98bb72a732 - std::sys::backtrace::BacktraceLock::print::h3ec4d7883eb25e61
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x5c98bb72be4c - std::panicking::default_hook::{{closure}}::h29548987efd832cb
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:300:27
[INFO] [stdout]   10:     0x5c98bb72bca2 - std::panicking::default_hook::ha25170a15c643514
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:324:9
[INFO] [stdout]   11:     0x5c98bb6f3dc4 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h562adeecbf43c420
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   12:     0x5c98bb6f3dc4 - test::test_main_with_exit_callback::{{closure}}::h97dd2a879d27e0e4
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x5c98bb72c82b - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h7e85cbdbda26fdb7
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   14:     0x5c98bb72c82b - std::panicking::rust_panic_with_hook::h0d81afcd829aa24b
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:841:13
[INFO] [stdout]   15:     0x5c98bb72c5c6 - std::panicking::begin_panic_handler::{{closure}}::hc84a33f1202346cf
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:699:13
[INFO] [stdout]   16:     0x5c98bb72add9 - std::sys::backtrace::__rust_end_short_backtrace::h373067a14f6c59aa
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:168:18
[INFO] [stdout]   17:     0x5c98bb72c28d - __rustc[beb0385846a06d21]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:697:5
[INFO] [stdout]   18:     0x5c98bb74e520 - core::panicking::panic_fmt::ha33fa2ae772efba9
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/panicking.rs:75:14
[INFO] [stdout]   19:     0x5c98bb74e58c - core::panicking::panic::hd2a569f4f37f7e10
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/panicking.rs:145:5
[INFO] [stdout]   20:     0x5c98bb6b9cba - algos_in_rust::dsu::dsu::tests::merge_two_sets::hf2a95d6dc5cef16d
[INFO] [stdout]                                at /opt/rustwide/workdir/src/dsu/dsu.rs:55:17
[INFO] [stdout]   21:     0x5c98bb6b9cba - algos_in_rust::dsu::dsu::tests::merge_two_sets::{{closure}}::hb0865adb7bf1e197
[INFO] [stdout]                                at /opt/rustwide/workdir/src/dsu/dsu.rs:54:24
[INFO] [stdout]   22:     0x5c98bb6b9cba - core::ops::function::FnOnce::call_once::h0a48f662d0dd2a8e
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   23:     0x5c98bb6f94fb - core::ops::function::FnOnce::call_once::hf84b9c3d864a6959
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x5c98bb6f94fb - test::__rust_begin_short_backtrace::h5724e31441c16fcb
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:648:18
[INFO] [stdout]   25:     0x5c98bb6f873e - test::run_test_in_process::{{closure}}::hbc28c9aa91793d7d
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:671:74
[INFO] [stdout]   26:     0x5c98bb6f873e - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hc17b0e238c0f8f3e
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   27:     0x5c98bb6f873e - std::panicking::catch_unwind::do_call::hcdbce0d6dd6c83ce
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:589:40
[INFO] [stdout]   28:     0x5c98bb6f873e - std::panicking::catch_unwind::h9477967ceea044e8
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:552:19
[INFO] [stdout]   29:     0x5c98bb6f873e - std::panic::catch_unwind::h616a2e249da12e16
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panic.rs:359:14
[INFO] [stdout]   30:     0x5c98bb6f873e - test::run_test_in_process::h2758deb0f2e54430
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:671:27
[INFO] [stdout]   31:     0x5c98bb6f873e - test::run_test::{{closure}}::habe5cd2564b18aaa
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:592:43
[INFO] [stdout]   32:     0x5c98bb6bc2e4 - test::run_test::{{closure}}::h9a0a6928f1a15421
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:622:41
[INFO] [stdout]   33:     0x5c98bb6bc2e4 - std::sys::backtrace::__rust_begin_short_backtrace::hd68b5332434a22ca
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:152:18
[INFO] [stdout]   34:     0x5c98bb6bfc8a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h264ddcc3098eacae
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/thread/mod.rs:559:17
[INFO] [stdout]   35:     0x5c98bb6bfc8a - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h9fa39489749d6f3c
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   36:     0x5c98bb6bfc8a - std::panicking::catch_unwind::do_call::hb9a1944b9f85100f
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:589:40
[INFO] [stdout]   37:     0x5c98bb6bfc8a - std::panicking::catch_unwind::h0c6f100786c0dad8
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:552:19
[INFO] [stdout]   38:     0x5c98bb6bfc8a - std::panic::catch_unwind::hf6084e2723385823
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panic.rs:359:14
[INFO] [stdout]   39:     0x5c98bb6bfc8a - std::thread::Builder::spawn_unchecked_::{{closure}}::hf0af58ce658143ad
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/thread/mod.rs:557:30
[INFO] [stdout]   40:     0x5c98bb6bfc8a - core::ops::function::FnOnce::call_once{{vtable.shim}}::h88a14f9b2e79f9de
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   41:     0x5c98bb72f787 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hf31256ba38644b65
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/boxed.rs:1971:9
[INFO] [stdout]   42:     0x5c98bb72f787 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h100ad77f3448041b
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/boxed.rs:1971:9
[INFO] [stdout]   43:     0x5c98bb72f787 - std::sys::pal::unix::thread::Thread::new::thread_start::h1a22ded422ce395b
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/pal/unix/thread.rs:97:17
[INFO] [stdout]   44:     0x79887adf2aa4 - <unknown>
[INFO] [stdout]   45:     0x79887ae7fa34 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     dsu::dsu::tests::find_representative
[INFO] [stdout]     dsu::dsu::tests::merge_two_sets
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 11 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--bin algos_in_rust`
[INFO] running `Command { std: "docker" "inspect" "e9ea70117c48313ef427c0241c3a64cedd6ae70dcbd63507a6809126937235ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9ea70117c48313ef427c0241c3a64cedd6ae70dcbd63507a6809126937235ad", kill_on_drop: false }`
[INFO] [stdout] e9ea70117c48313ef427c0241c3a64cedd6ae70dcbd63507a6809126937235ad
