[INFO] cloning repository https://github.com/darylhjd/learning-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/darylhjd/learning-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdarylhjd%2Flearning-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdarylhjd%2Flearning-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8b539e1230978bf3e7259487667214072f9fb01a
[INFO] testing darylhjd/learning-rust against try#9f93af291970322f4f1c6315ccde4d7078201159 for pr-146098-6
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdarylhjd%2Flearning-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/darylhjd/learning-rust
[INFO] finished tweaking git repo https://github.com/darylhjd/learning-rust
[INFO] tweaked toml for git repo https://github.com/darylhjd/learning-rust written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/darylhjd/learning-rust on toolchain 9f93af291970322f4f1c6315ccde4d7078201159
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9f93af291970322f4f1c6315ccde4d7078201159" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/darylhjd/learning-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" "+9f93af291970322f4f1c6315ccde4d7078201159" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+9f93af291970322f4f1c6315ccde4d7078201159" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c38b9545f80d6ce70c6d7193fb3472662472e9745b4dfb3a7b507b6b60cb273c
[INFO] running `Command { std: "docker" "start" "-a" "c38b9545f80d6ce70c6d7193fb3472662472e9745b4dfb3a7b507b6b60cb273c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c38b9545f80d6ce70c6d7193fb3472662472e9745b4dfb3a7b507b6b60cb273c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c38b9545f80d6ce70c6d7193fb3472662472e9745b4dfb3a7b507b6b60cb273c", kill_on_drop: false }`
[INFO] [stdout] c38b9545f80d6ce70c6d7193fb3472662472e9745b4dfb3a7b507b6b60cb273c
[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" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+9f93af291970322f4f1c6315ccde4d7078201159" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 341f0228efa5cdc3a03a166df6a698a0f05040fffde755d2b8c583135540d123
[INFO] running `Command { std: "docker" "start" "-a" "341f0228efa5cdc3a03a166df6a698a0f05040fffde755d2b8c583135540d123", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling quick-xml v0.22.0
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling learning-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `dedup`, `filter`, and `sum`
[INFO] [stdout]  --> src/hw01/tests_provided.rs:1:23
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::problem1::{dedup, filter, sum};
[INFO] [stdout]   |                       ^^^^^  ^^^^^^  ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::problem2::mat_mult`
[INFO] [stdout]  --> src/hw01/tests_provided.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use super::problem2::mat_mult;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::problem3::sieve`
[INFO] [stdout]  --> src/hw01/tests_provided.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use super::problem3::sieve;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Peg` and `hanoi`
[INFO] [stdout]  --> src/hw01/tests_provided.rs:4:23
[INFO] [stdout]   |
[INFO] [stdout] 4 | use super::problem4::{hanoi, Peg};
[INFO] [stdout]   |                       ^^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sum` is never used
[INFO] [stdout]  --> src/hw01/problem1.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub fn sum(slice: &[i32]) -> 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 `dedup` is never used
[INFO] [stdout]  --> src/hw01/problem1.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn dedup(vs: &Vec<i32>) -> Vec<i32> {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `filter` is never used
[INFO] [stdout]   --> src/hw01/problem1.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn filter(vs: &Vec<i32>, pred: &dyn Fn(i32) -> bool) -> Vec<i32> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Matrix` is never used
[INFO] [stdout]  --> src/hw01/problem2.rs:2:10
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub type Matrix = Vec<Vec<f32>>;
[INFO] [stdout]   |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mat_mult` is never used
[INFO] [stdout]  --> src/hw01/problem2.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn mat_mult(mat1: &Matrix, mat2: &Matrix) -> Matrix {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sieve` is never used
[INFO] [stdout]  --> src/hw01/problem3.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn sieve(n: u32) -> Vec<u32> {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Peg` is never used
[INFO] [stdout]  --> src/hw01/problem4.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub enum Peg {
[INFO] [stdout]   |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Move` is never used
[INFO] [stdout]   --> src/hw01/problem4.rs:14:10
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub type Move = (Peg, Peg);
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `hanoi` is never used
[INFO] [stdout]   --> src/hw01/problem4.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub fn hanoi(num_discs: u32, src: Peg, aux: Peg, dst: Peg) -> Vec<Move> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Link` is never used
[INFO] [stdout]  --> src/hw02/first.rs:3:6
[INFO] [stdout]   |
[INFO] [stdout] 3 | enum Link {
[INFO] [stdout]   |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Node` is never constructed
[INFO] [stdout]  --> src/hw02/first.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct Node {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BST` is never constructed
[INFO] [stdout]   --> src/hw02/first.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct BST {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `insert`, and `search` are never used
[INFO] [stdout]   --> src/hw02/first.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | impl BST {
[INFO] [stdout]    | -------- associated items in this implementation
[INFO] [stdout] 21 |     // Create a new BST.
[INFO] [stdout] 22 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 |     pub fn insert(&mut self, element: i32) -> bool {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 34 |     pub fn search(&self, element: i32) -> bool {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `insert` and `search` are never used
[INFO] [stdout]   --> src/hw02/first.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 39 | impl Link {
[INFO] [stdout]    | --------- methods in this implementation
[INFO] [stdout] 40 |     fn insert(&mut self, element: i32) -> bool {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 64 |     fn search(&self, element: i32) -> bool {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Link` is never used
[INFO] [stdout]  --> src/hw03/second.rs:2:6
[INFO] [stdout]   |
[INFO] [stdout] 2 | type Link<T> = Option<Box<Node<T>>>;
[INFO] [stdout]   |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `InsertSearch` is never used
[INFO] [stdout]  --> src/hw03/second.rs:4:7
[INFO] [stdout]   |
[INFO] [stdout] 4 | trait InsertSearch<T> {
[INFO] [stdout]   |       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Node` is never constructed
[INFO] [stdout]   --> src/hw03/second.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct Node<T> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BST` is never constructed
[INFO] [stdout]   --> src/hw03/second.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct BST<T> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `insert`, and `search` are never used
[INFO] [stdout]   --> src/hw03/second.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 21 | / impl<T> BST<T>
[INFO] [stdout] 22 | |     where T: Ord {
[INFO] [stdout]    | |________________- associated items in this implementation
[INFO] [stdout] 23 |       // Create a new BST.
[INFO] [stdout] 24 |       pub fn new() -> Self {
[INFO] [stdout]    |              ^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |       pub fn insert(&mut self, element: T) -> bool {
[INFO] [stdout]    |              ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 36 |       pub fn search(&self, element: T) -> bool {
[INFO] [stdout]    |              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.49s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: quick-xml v0.22.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3`
[INFO] running `Command { std: "docker" "inspect" "341f0228efa5cdc3a03a166df6a698a0f05040fffde755d2b8c583135540d123", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "341f0228efa5cdc3a03a166df6a698a0f05040fffde755d2b8c583135540d123", kill_on_drop: false }`
[INFO] [stdout] 341f0228efa5cdc3a03a166df6a698a0f05040fffde755d2b8c583135540d123
[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" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+9f93af291970322f4f1c6315ccde4d7078201159" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 767dacb49fa1eed57e5f9de299263f22d267415be892b3b52816aade640fe588
[INFO] running `Command { std: "docker" "start" "-a" "767dacb49fa1eed57e5f9de299263f22d267415be892b3b52816aade640fe588", kill_on_drop: false }`
[INFO] [stdout] warning: unused imports: `dedup`, `filter`, and `sum`
[INFO] [stdout]  --> src/hw01/tests_provided.rs:1:23
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::problem1::{dedup, filter, sum};
[INFO] [stdout]   |                       ^^^^^  ^^^^^^  ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::problem2::mat_mult`
[INFO] [stdout]  --> src/hw01/tests_provided.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use super::problem2::mat_mult;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::problem3::sieve`
[INFO] [stdout]  --> src/hw01/tests_provided.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use super::problem3::sieve;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Peg` and `hanoi`
[INFO] [stdout]  --> src/hw01/tests_provided.rs:4:23
[INFO] [stdout]   |
[INFO] [stdout] 4 | use super::problem4::{hanoi, Peg};
[INFO] [stdout]   |                       ^^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sum` is never used
[INFO] [stdout]  --> src/hw01/problem1.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub fn sum(slice: &[i32]) -> 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 `dedup` is never used
[INFO] [stdout]  --> src/hw01/problem1.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn dedup(vs: &Vec<i32>) -> Vec<i32> {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `filter` is never used
[INFO] [stdout]   --> src/hw01/problem1.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn filter(vs: &Vec<i32>, pred: &dyn Fn(i32) -> bool) -> Vec<i32> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Matrix` is never used
[INFO] [stdout]  --> src/hw01/problem2.rs:2:10
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub type Matrix = Vec<Vec<f32>>;
[INFO] [stdout]   |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mat_mult` is never used
[INFO] [stdout]  --> src/hw01/problem2.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn mat_mult(mat1: &Matrix, mat2: &Matrix) -> Matrix {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sieve` is never used
[INFO] [stdout]  --> src/hw01/problem3.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn sieve(n: u32) -> Vec<u32> {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Peg` is never used
[INFO] [stdout]  --> src/hw01/problem4.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub enum Peg {
[INFO] [stdout]   |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Move` is never used
[INFO] [stdout]   --> src/hw01/problem4.rs:14:10
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub type Move = (Peg, Peg);
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `hanoi` is never used
[INFO] [stdout]   --> src/hw01/problem4.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub fn hanoi(num_discs: u32, src: Peg, aux: Peg, dst: Peg) -> Vec<Move> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Link` is never used
[INFO] [stdout]  --> src/hw02/first.rs:3:6
[INFO] [stdout]   |
[INFO] [stdout] 3 | enum Link {
[INFO] [stdout]   |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Node` is never constructed
[INFO] [stdout]  --> src/hw02/first.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct Node {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BST` is never constructed
[INFO] [stdout]   --> src/hw02/first.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct BST {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `insert`, and `search` are never used
[INFO] [stdout]   --> src/hw02/first.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | impl BST {
[INFO] [stdout]    | -------- associated items in this implementation
[INFO] [stdout] 21 |     // Create a new BST.
[INFO] [stdout] 22 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 |     pub fn insert(&mut self, element: i32) -> bool {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 34 |     pub fn search(&self, element: i32) -> bool {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `insert` and `search` are never used
[INFO] [stdout]   --> src/hw02/first.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 39 | impl Link {
[INFO] [stdout]    | --------- methods in this implementation
[INFO] [stdout] 40 |     fn insert(&mut self, element: i32) -> bool {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 64 |     fn search(&self, element: i32) -> bool {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Link` is never used
[INFO] [stdout]  --> src/hw03/second.rs:2:6
[INFO] [stdout]   |
[INFO] [stdout] 2 | type Link<T> = Option<Box<Node<T>>>;
[INFO] [stdout]   |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `InsertSearch` is never used
[INFO] [stdout]  --> src/hw03/second.rs:4:7
[INFO] [stdout]   |
[INFO] [stdout] 4 | trait InsertSearch<T> {
[INFO] [stdout]   |       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Node` is never constructed
[INFO] [stdout]   --> src/hw03/second.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct Node<T> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BST` is never constructed
[INFO] [stdout]   --> src/hw03/second.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct BST<T> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `insert`, and `search` are never used
[INFO] [stdout]   --> src/hw03/second.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 21 | / impl<T> BST<T>
[INFO] [stdout] 22 | |     where T: Ord {
[INFO] [stdout]    | |________________- associated items in this implementation
[INFO] [stdout] 23 |       // Create a new BST.
[INFO] [stdout] 24 |       pub fn new() -> Self {
[INFO] [stdout]    |              ^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |       pub fn insert(&mut self, element: T) -> bool {
[INFO] [stdout]    |              ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 36 |       pub fn search(&self, element: T) -> bool {
[INFO] [stdout]    |              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling learning-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.23s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: quick-xml v0.22.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3`
[INFO] running `Command { std: "docker" "inspect" "767dacb49fa1eed57e5f9de299263f22d267415be892b3b52816aade640fe588", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "767dacb49fa1eed57e5f9de299263f22d267415be892b3b52816aade640fe588", kill_on_drop: false }`
[INFO] [stdout] 767dacb49fa1eed57e5f9de299263f22d267415be892b3b52816aade640fe588
[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" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+9f93af291970322f4f1c6315ccde4d7078201159" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6b31eac1d3fad2b40c4d67577d491a504b859fb07f068defa476d9a5c344143c
[INFO] running `Command { std: "docker" "start" "-a" "6b31eac1d3fad2b40c4d67577d491a504b859fb07f068defa476d9a5c344143c", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `dedup`, `filter`, and `sum`
[INFO] [stderr]  --> src/hw01/tests_provided.rs:1:23
[INFO] [stderr]   |
[INFO] [stderr] 1 | use super::problem1::{dedup, filter, sum};
[INFO] [stderr]   |                       ^^^^^  ^^^^^^  ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::problem2::mat_mult`
[INFO] [stderr]  --> src/hw01/tests_provided.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use super::problem2::mat_mult;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::problem3::sieve`
[INFO] [stderr]  --> src/hw01/tests_provided.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use super::problem3::sieve;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Peg` and `hanoi`
[INFO] [stderr]  --> src/hw01/tests_provided.rs:4:23
[INFO] [stderr]   |
[INFO] [stderr] 4 | use super::problem4::{hanoi, Peg};
[INFO] [stderr]   |                       ^^^^^  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `sum` is never used
[INFO] [stderr]  --> src/hw01/problem1.rs:2:8
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub fn sum(slice: &[i32]) -> i32 {
[INFO] [stderr]   |        ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `dedup` is never used
[INFO] [stderr]  --> src/hw01/problem1.rs:9:8
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub fn dedup(vs: &Vec<i32>) -> Vec<i32> {
[INFO] [stderr]   |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `filter` is never used
[INFO] [stderr]   --> src/hw01/problem1.rs:21:8
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub fn filter(vs: &Vec<i32>, pred: &dyn Fn(i32) -> bool) -> Vec<i32> {
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias `Matrix` is never used
[INFO] [stderr]  --> src/hw01/problem2.rs:2:10
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub type Matrix = Vec<Vec<f32>>;
[INFO] [stderr]   |          ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `mat_mult` is never used
[INFO] [stderr]  --> src/hw01/problem2.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn mat_mult(mat1: &Matrix, mat2: &Matrix) -> Matrix {
[INFO] [stderr]   |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `sieve` is never used
[INFO] [stderr]  --> src/hw01/problem3.rs:6:8
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn sieve(n: u32) -> Vec<u32> {
[INFO] [stderr]   |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Peg` is never used
[INFO] [stderr]  --> src/hw01/problem4.rs:7:10
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub enum Peg {
[INFO] [stderr]   |          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias `Move` is never used
[INFO] [stderr]   --> src/hw01/problem4.rs:14:10
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub type Move = (Peg, Peg);
[INFO] [stderr]    |          ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `hanoi` is never used
[INFO] [stderr]   --> src/hw01/problem4.rs:18:8
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub fn hanoi(num_discs: u32, src: Peg, aux: Peg, dst: Peg) -> Vec<Move> {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Link` is never used
[INFO] [stderr]  --> src/hw02/first.rs:3:6
[INFO] [stderr]   |
[INFO] [stderr] 3 | enum Link {
[INFO] [stderr]   |      ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Node` is never constructed
[INFO] [stderr]  --> src/hw02/first.rs:9:8
[INFO] [stderr]   |
[INFO] [stderr] 9 | struct Node {
[INFO] [stderr]   |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `BST` is never constructed
[INFO] [stderr]   --> src/hw02/first.rs:16:12
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub struct BST {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `insert`, and `search` are never used
[INFO] [stderr]   --> src/hw02/first.rs:22:12
[INFO] [stderr]    |
[INFO] [stderr] 20 | impl BST {
[INFO] [stderr]    | -------- associated items in this implementation
[INFO] [stderr] 21 |     // Create a new BST.
[INFO] [stderr] 22 |     pub fn new() -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 29 |     pub fn insert(&mut self, element: i32) -> bool {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 34 |     pub fn search(&self, element: i32) -> bool {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: methods `insert` and `search` are never used
[INFO] [stderr]   --> src/hw02/first.rs:40:8
[INFO] [stderr]    |
[INFO] [stderr] 39 | impl Link {
[INFO] [stderr]    | --------- methods in this implementation
[INFO] [stderr] 40 |     fn insert(&mut self, element: i32) -> bool {
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 64 |     fn search(&self, element: i32) -> bool {
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias `Link` is never used
[INFO] [stderr]  --> src/hw03/second.rs:2:6
[INFO] [stderr]   |
[INFO] [stderr] 2 | type Link<T> = Option<Box<Node<T>>>;
[INFO] [stderr]   |      ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait `InsertSearch` is never used
[INFO] [stderr]  --> src/hw03/second.rs:4:7
[INFO] [stderr]   |
[INFO] [stderr] 4 | trait InsertSearch<T> {
[INFO] [stderr]   |       ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Node` is never constructed
[INFO] [stderr]   --> src/hw03/second.rs:10:8
[INFO] [stderr]    |
[INFO] [stderr] 10 | struct Node<T> {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `BST` is never constructed
[INFO] [stderr]   --> src/hw03/second.rs:17:12
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub struct BST<T> {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `insert`, and `search` are never used
[INFO] [stderr]   --> src/hw03/second.rs:24:12
[INFO] [stderr]    |
[INFO] [stderr] 21 | / impl<T> BST<T>
[INFO] [stderr] 22 | |     where T: Ord {
[INFO] [stderr]    | |________________- associated items in this implementation
[INFO] [stderr] 23 |       // Create a new BST.
[INFO] [stderr] 24 |       pub fn new() -> Self {
[INFO] [stderr]    |              ^^^
[INFO] [stderr] ...
[INFO] [stderr] 31 |       pub fn insert(&mut self, element: T) -> bool {
[INFO] [stderr]    |              ^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 36 |       pub fn search(&self, element: T) -> bool {
[INFO] [stderr]    |              ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `learning-rust` (lib) generated 23 warnings (run `cargo fix --lib -p learning-rust` to apply 4 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: quick-xml v0.22.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3`
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/learning_rust-0dc7d356ba1f4a0b)
[INFO] [stdout] 
[INFO] [stdout] running 23 tests
[INFO] [stdout] test hw01::tests_provided::problem_1::test_dedup_small ... ok
[INFO] [stdout] test hw01::tests_provided::problem_1::test_filter_small ... ok
[INFO] [stdout] test hw01::tests_provided::problem_2::test_mat_mult_identity ... ok
[INFO] [stdout] test hw01::tests_provided::problem_3::test_sieve_basic ... ok
[INFO] [stdout] test hw03::second::test::test_bst ... ok
[INFO] [stdout] test hw02::first::test::test_bst ... ok
[INFO] [stdout] test learning_projects::beginner::tests::test_calculator ... ok
[INFO] [stdout] test learning_projects::beginner::tests::test_backwards_string ... ok
[INFO] [stdout] test learning_projects::beginner::tests::test_check_palindrome ... ok
[INFO] [stdout] test learning_projects::beginner::tests::test_convert_currency ... ok
[INFO] [stdout] test learning_projects::beginner::tests::test_factorial ... ok
[INFO] [stdout] test learning_projects::beginner::tests::test_piggy_bank ... ok
[INFO] [stdout] test learning_projects::beginner::tests::test_count_vow_cons ... ok
[INFO] [stdout] test learning_projects::intermediate::test::test_check_prime ... ok
[INFO] [stdout] test learning_projects::intermediate::test::test_prime_pairs ... ok
[INFO] [stdout] test hw01::tests_provided::problem_4::test_hanoi_1_disks ... ok
[INFO] [stdout] test learning_projects::beginner::tests::test_word_scramble ... ok
[INFO] [stdout] test learning_projects::beginner::tests::test_find_fifth_root ... ok
[INFO] [stdout] test learning_projects::intermediate::test::test_rot13 ... ok
[INFO] [stdout] test hw01::tests_provided::problem_1::test_sum_small ... ok
[INFO] [stdout] test learning_projects::intermediate::test::test_matrix ... ok
[INFO] [stdout] test learning_projects::intermediate::test::test_parse_xml ... FAILED
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] [stdout] test learning_projects::intermediate::test::test_quiz ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- learning_projects::intermediate::test::test_parse_xml stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'learning_projects::intermediate::test::test_parse_xml' (35) panicked at src/learning_projects/intermediate.rs:302:58:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Io(Os { code: 2, kind: NotFound, message: "No such file or directory" })
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x6099d8de4492 - std::backtrace_rs::backtrace::libunwind::trace::h16affffe904e891e
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x6099d8de4492 - std::backtrace_rs::backtrace::trace_unsynchronized::h5c14b13373ed4150
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x6099d8de4492 - std::sys::backtrace::_print_fmt::hcbb507f162c816cc
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x6099d8de4492 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h8be9aa933f14675f
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x6099d8df5c4f - core::fmt::rt::Argument::fmt::h30ed739d33467c3a
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x6099d8df5c4f - core::fmt::write::hfd0efbb002ac7eea
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/fmt/mod.rs:1469:25
[INFO] [stdout]    6:     0x6099d8db1df3 - std::io::default_write_fmt::hd6d24501f2d7f8d3
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x6099d8db1df3 - std::io::Write::write_fmt::h79eca2f72fc24111
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x6099d8dbdb92 - std::sys::backtrace::BacktraceLock::print::hf2554f6030d393f7
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x6099d8dc26cf - std::panicking::default_hook::{{closure}}::h8873121c56335b01
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:301:27
[INFO] [stdout]   10:     0x6099d8dc2561 - std::panicking::default_hook::hbafefc2d196267a2
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:325:9
[INFO] [stdout]   11:     0x6099d8d7038e - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::ha834d5846f91b30b
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/alloc/src/boxed.rs:2099:9
[INFO] [stdout]   12:     0x6099d8d7038e - test::test_main_with_exit_callback::{{closure}}::h63c167737eecb025
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x6099d8dc2cdf - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hbf9b0f7a281291fd
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/alloc/src/boxed.rs:2099:9
[INFO] [stdout]   14:     0x6099d8dc2cdf - std::panicking::panic_with_hook::h9f5b09d5adc1a745
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:842:13
[INFO] [stdout]   15:     0x6099d8dc2b3a - std::panicking::panic_handler::{{closure}}::h08111e483bdf6a89
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:707:13
[INFO] [stdout]   16:     0x6099d8dbdcc9 - std::sys::backtrace::__rust_end_short_backtrace::h1b86e3414ecbbe8d
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/sys/backtrace.rs:174:18
[INFO] [stdout]   17:     0x6099d8da5e5d - __rustc[b292c645e8102103]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:698:5
[INFO] [stdout]   18:     0x6099d8dfd9a0 - core::panicking::panic_fmt::h31cc490ecc8cc1fa
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x6099d8dfcde6 - core::result::unwrap_failed::he05762ef9e6bdf9c
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/result.rs:1862:5
[INFO] [stdout]   20:     0x6099d8d16f96 - core::result::Result<T,E>::unwrap::h8e65882cf8b659df
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/result.rs:1233:23
[INFO] [stdout]   21:     0x6099d8d16f96 - learning_rust::learning_projects::intermediate::test::test_parse_xml::h4f3e2b3187647e80
[INFO] [stdout]                                at /opt/rustwide/workdir/src/learning_projects/intermediate.rs:302:58
[INFO] [stdout]   22:     0x6099d8d17377 - learning_rust::learning_projects::intermediate::test::test_parse_xml::{{closure}}::h6bdfd6a0196c5b63
[INFO] [stdout]                                at /opt/rustwide/workdir/src/learning_projects/intermediate.rs:296:24
[INFO] [stdout]   23:     0x6099d8d30626 - core::ops::function::FnOnce::call_once::h0e313dcaafcd725b
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x6099d8d7018b - core::ops::function::FnOnce::call_once::h2b2de5fdd23aab3e
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x6099d8d7018b - test::__rust_begin_short_backtrace::he551dd004770be01
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/test/src/lib.rs:663:18
[INFO] [stdout]   26:     0x6099d8d841ed - test::run_test_in_process::{{closure}}::h5f0b44080a35ed87
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/test/src/lib.rs:686:74
[INFO] [stdout]   27:     0x6099d8d841ed - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h4dbf65d14893ecf5
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   28:     0x6099d8d841ed - std::panicking::catch_unwind::do_call::hc37c563b8a006285
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:590:40
[INFO] [stdout]   29:     0x6099d8d841ed - std::panicking::catch_unwind::h616b6e2e7a27f612
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:553:19
[INFO] [stdout]   30:     0x6099d8d841ed - std::panic::catch_unwind::h1e788dd57758e6d8
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x6099d8d841ed - test::run_test_in_process::hf073c2764f29f8ad
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/test/src/lib.rs:686:27
[INFO] [stdout]   32:     0x6099d8d841ed - test::run_test::{{closure}}::h3dc46b7a0c340fa6
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/test/src/lib.rs:607:43
[INFO] [stdout]   33:     0x6099d8d5d734 - test::run_test::{{closure}}::h6a4da3c57ef4505f
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/test/src/lib.rs:637:41
[INFO] [stdout]   34:     0x6099d8d5d734 - std::sys::backtrace::__rust_begin_short_backtrace::hfd8e44bc311a5d57
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/sys/backtrace.rs:158:18
[INFO] [stdout]   35:     0x6099d8d60f8a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h57c4ddec344fe24c
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/thread/mod.rs:562:17
[INFO] [stdout]   36:     0x6099d8d60f8a - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hd7cbe09591f06dfb
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   37:     0x6099d8d60f8a - std::panicking::catch_unwind::do_call::hdcd076e8e993dfbc
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:590:40
[INFO] [stdout]   38:     0x6099d8d60f8a - std::panicking::catch_unwind::h8f9f675f3756eab1
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:553:19
[INFO] [stdout]   39:     0x6099d8d60f8a - std::panic::catch_unwind::he8f74a93abeceb9b
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x6099d8d60f8a - std::thread::Builder::spawn_unchecked_::{{closure}}::he43db13a2caa41d5
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/thread/mod.rs:560:30
[INFO] [stdout]   41:     0x6099d8d60f8a - core::ops::function::FnOnce::call_once{{vtable.shim}}::h8f3531a7e0d83514
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x6099d8db90cf - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h6ff05134d80ef20e
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/alloc/src/boxed.rs:2085:9
[INFO] [stdout]   43:     0x6099d8db90cf - std::sys::thread::unix::Thread::new::thread_start::h9a4a41a076a486e0
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/sys/thread/unix.rs:124:17
[INFO] [stdout]   44:     0x7b1ddee8eaa4 - <unknown>
[INFO] [stdout]   45:     0x7b1ddef1ba64 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- learning_projects::intermediate::test::test_quiz stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'learning_projects::intermediate::test::test_quiz' (37) panicked at src/learning_projects/intermediate.rs:292:9:
[INFO] [stdout] assertion failed: Quiz::new("assets/quiz.json").is_ok()
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x6099d8de4492 - std::backtrace_rs::backtrace::libunwind::trace::h16affffe904e891e
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x6099d8de4492 - std::backtrace_rs::backtrace::trace_unsynchronized::h5c14b13373ed4150
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x6099d8de4492 - std::sys::backtrace::_print_fmt::hcbb507f162c816cc
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x6099d8de4492 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h8be9aa933f14675f
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x6099d8df5c4f - core::fmt::rt::Argument::fmt::h30ed739d33467c3a
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x6099d8df5c4f - core::fmt::write::hfd0efbb002ac7eea
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/fmt/mod.rs:1469:25
[INFO] [stdout]    6:     0x6099d8db1df3 - std::io::default_write_fmt::hd6d24501f2d7f8d3
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x6099d8db1df3 - std::io::Write::write_fmt::h79eca2f72fc24111
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x6099d8dbdb92 - std::sys::backtrace::BacktraceLock::print::hf2554f6030d393f7
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x6099d8dc26cf - std::panicking::default_hook::{{closure}}::h8873121c56335b01
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:301:27
[INFO] [stdout]   10:     0x6099d8dc2561 - std::panicking::default_hook::hbafefc2d196267a2
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:325:9
[INFO] [stdout]   11:     0x6099d8d7038e - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::ha834d5846f91b30b
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/alloc/src/boxed.rs:2099:9
[INFO] [stdout]   12:     0x6099d8d7038e - test::test_main_with_exit_callback::{{closure}}::h63c167737eecb025
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x6099d8dc2cdf - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hbf9b0f7a281291fd
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/alloc/src/boxed.rs:2099:9
[INFO] [stdout]   14:     0x6099d8dc2cdf - std::panicking::panic_with_hook::h9f5b09d5adc1a745
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:842:13
[INFO] [stdout]   15:     0x6099d8dc2b06 - std::panicking::panic_handler::{{closure}}::h08111e483bdf6a89
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:700:13
[INFO] [stdout]   16:     0x6099d8dbdcc9 - std::sys::backtrace::__rust_end_short_backtrace::h1b86e3414ecbbe8d
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/sys/backtrace.rs:174:18
[INFO] [stdout]   17:     0x6099d8da5e5d - __rustc[b292c645e8102103]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:698:5
[INFO] [stdout]   18:     0x6099d8dfd9a0 - core::panicking::panic_fmt::h31cc490ecc8cc1fa
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x6099d8dfd97c - core::panicking::panic::h5cbcc2ceb0950681
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/panicking.rs:150:5
[INFO] [stdout]   20:     0x6099d8d17ad9 - learning_rust::learning_projects::intermediate::test::test_quiz::hba53c870b54f9412
[INFO] [stdout]                                at /opt/rustwide/workdir/src/learning_projects/intermediate.rs:292:9
[INFO] [stdout]   21:     0x6099d8d17b17 - learning_rust::learning_projects::intermediate::test::test_quiz::{{closure}}::hf16143cebd26e633
[INFO] [stdout]                                at /opt/rustwide/workdir/src/learning_projects/intermediate.rs:290:19
[INFO] [stdout]   22:     0x6099d8d30e36 - core::ops::function::FnOnce::call_once::hd3cd228e473b2d2f
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   23:     0x6099d8d7018b - core::ops::function::FnOnce::call_once::h2b2de5fdd23aab3e
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x6099d8d7018b - test::__rust_begin_short_backtrace::he551dd004770be01
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/test/src/lib.rs:663:18
[INFO] [stdout]   25:     0x6099d8d841ed - test::run_test_in_process::{{closure}}::h5f0b44080a35ed87
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/test/src/lib.rs:686:74
[INFO] [stdout]   26:     0x6099d8d841ed - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h4dbf65d14893ecf5
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   27:     0x6099d8d841ed - std::panicking::catch_unwind::do_call::hc37c563b8a006285
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:590:40
[INFO] [stdout]   28:     0x6099d8d841ed - std::panicking::catch_unwind::h616b6e2e7a27f612
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:553:19
[INFO] [stdout]   29:     0x6099d8d841ed - std::panic::catch_unwind::h1e788dd57758e6d8
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panic.rs:359:14
[INFO] [stdout]   30:     0x6099d8d841ed - test::run_test_in_process::hf073c2764f29f8ad
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/test/src/lib.rs:686:27
[INFO] [stdout]   31:     0x6099d8d841ed - test::run_test::{{closure}}::h3dc46b7a0c340fa6
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/test/src/lib.rs:607:43
[INFO] [stdout]   32:     0x6099d8d5d734 - test::run_test::{{closure}}::h6a4da3c57ef4505f
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/test/src/lib.rs:637:41
[INFO] [stdout]   33:     0x6099d8d5d734 - std::sys::backtrace::__rust_begin_short_backtrace::hfd8e44bc311a5d57
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/sys/backtrace.rs:158:18
[INFO] [stdout]   34:     0x6099d8d60f8a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h57c4ddec344fe24c
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/thread/mod.rs:562:17
[INFO] [stdout]   35:     0x6099d8d60f8a - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hd7cbe09591f06dfb
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   36:     0x6099d8d60f8a - std::panicking::catch_unwind::do_call::hdcd076e8e993dfbc
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:590:40
[INFO] [stdout]   37:     0x6099d8d60f8a - std::panicking::catch_unwind::h8f9f675f3756eab1
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:553:19
[INFO] [stdout]   38:     0x6099d8d60f8a - std::panic::catch_unwind::he8f74a93abeceb9b
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panic.rs:359:14
[INFO] [stdout]   39:     0x6099d8d60f8a - std::thread::Builder::spawn_unchecked_::{{closure}}::he43db13a2caa41d5
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/thread/mod.rs:560:30
[INFO] [stdout]   40:     0x6099d8d60f8a - core::ops::function::FnOnce::call_once{{vtable.shim}}::h8f3531a7e0d83514
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   41:     0x6099d8db90cf - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h6ff05134d80ef20e
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/alloc/src/boxed.rs:2085:9
[INFO] [stdout]   42:     0x6099d8db90cf - std::sys::thread::unix::Thread::new::thread_start::h9a4a41a076a486e0
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/sys/thread/unix.rs:124:17
[INFO] [stdout]   43:     0x7b1ddee8eaa4 - <unknown>
[INFO] [stdout]   44:     0x7b1ddef1ba64 - clone
[INFO] [stdout]   45:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     learning_projects::intermediate::test::test_parse_xml
[INFO] [stdout]     learning_projects::intermediate::test::test_quiz
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 21 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6b31eac1d3fad2b40c4d67577d491a504b859fb07f068defa476d9a5c344143c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b31eac1d3fad2b40c4d67577d491a504b859fb07f068defa476d9a5c344143c", kill_on_drop: false }`
[INFO] [stdout] 6b31eac1d3fad2b40c4d67577d491a504b859fb07f068defa476d9a5c344143c
