[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 master#1ef7943ee607160a564655b6596f83670ef95df5 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-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/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-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/darylhjd/learning-rust on toolchain 1ef7943ee607160a564655b6596f83670ef95df5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1ef7943ee607160a564655b6596f83670ef95df5" "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" "+1ef7943ee607160a564655b6596f83670ef95df5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded dirs v1.0.5
[INFO] [stderr]   Downloaded term v0.5.2
[INFO] [stderr]   Downloaded clippy v0.0.302
[INFO] [stderr]   Downloaded quick-xml v0.22.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1ef7943ee607160a564655b6596f83670ef95df5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 70dab6e53bf65a45a44232ad31de60fb352aebb1c471c330b6bca6390fc53439
[INFO] running `Command { std: "docker" "start" "-a" "70dab6e53bf65a45a44232ad31de60fb352aebb1c471c330b6bca6390fc53439", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "70dab6e53bf65a45a44232ad31de60fb352aebb1c471c330b6bca6390fc53439", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70dab6e53bf65a45a44232ad31de60fb352aebb1c471c330b6bca6390fc53439", kill_on_drop: false }`
[INFO] [stdout] 70dab6e53bf65a45a44232ad31de60fb352aebb1c471c330b6bca6390fc53439
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1ef7943ee607160a564655b6596f83670ef95df5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dd723cd177da5bcce0e9b147e695b5a3d79e4eab9fb5bb7b4b0f50f4edc10c5f
[INFO] running `Command { std: "docker" "start" "-a" "dd723cd177da5bcce0e9b147e695b5a3d79e4eab9fb5bb7b4b0f50f4edc10c5f", 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 14.53s
[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" "dd723cd177da5bcce0e9b147e695b5a3d79e4eab9fb5bb7b4b0f50f4edc10c5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd723cd177da5bcce0e9b147e695b5a3d79e4eab9fb5bb7b4b0f50f4edc10c5f", kill_on_drop: false }`
[INFO] [stdout] dd723cd177da5bcce0e9b147e695b5a3d79e4eab9fb5bb7b4b0f50f4edc10c5f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1ef7943ee607160a564655b6596f83670ef95df5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] af8ec9749bd3375103a23f5ae29cbc27bb00f0f0aceceeb1d0ab5d2215dbef1d
[INFO] running `Command { std: "docker" "start" "-a" "af8ec9749bd3375103a23f5ae29cbc27bb00f0f0aceceeb1d0ab5d2215dbef1d", 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] [stderr]    Compiling learning-rust v0.1.0 (/opt/rustwide/workdir)
[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 `test` profile [unoptimized + debuginfo] target(s) in 1.36s
[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" "af8ec9749bd3375103a23f5ae29cbc27bb00f0f0aceceeb1d0ab5d2215dbef1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af8ec9749bd3375103a23f5ae29cbc27bb00f0f0aceceeb1d0ab5d2215dbef1d", kill_on_drop: false }`
[INFO] [stdout] af8ec9749bd3375103a23f5ae29cbc27bb00f0f0aceceeb1d0ab5d2215dbef1d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1ef7943ee607160a564655b6596f83670ef95df5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2fa7da439a6a49075762b8fcbd239c193118730cc714e8dd06732b0cdc567ff0
[INFO] running `Command { std: "docker" "start" "-a" "2fa7da439a6a49075762b8fcbd239c193118730cc714e8dd06732b0cdc567ff0", 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_2::test_mat_mult_identity ... ok
[INFO] [stdout] test hw01::tests_provided::problem_1::test_sum_small ... 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 hw01::tests_provided::problem_3::test_sieve_basic ... ok
[INFO] [stdout] test hw02::first::test::test_bst ... ok
[INFO] [stdout] test hw03::second::test::test_bst ... ok
[INFO] [stdout] test hw01::tests_provided::problem_1::test_filter_small ... ok
[INFO] [stdout] test learning_projects::beginner::tests::test_count_vow_cons ... ok
[INFO] [stdout] test learning_projects::beginner::tests::test_factorial ... ok
[INFO] [stdout] test learning_projects::beginner::tests::test_convert_currency ... ok
[INFO] [stdout] test learning_projects::beginner::tests::test_find_fifth_root ... ok
[INFO] [stdout] test learning_projects::beginner::tests::test_piggy_bank ... ok
[INFO] [stdout] test hw01::tests_provided::problem_4::test_hanoi_1_disks ... ok
[INFO] [stdout] test learning_projects::intermediate::test::test_check_prime ... ok
[INFO] [stdout] test learning_projects::beginner::tests::test_check_palindrome ... ok
[INFO] [stdout] test learning_projects::intermediate::test::test_prime_pairs ... ok
[INFO] [stdout] test learning_projects::intermediate::test::test_rot13 ... ok
[INFO] [stdout] test learning_projects::beginner::tests::test_word_scramble ... ok
[INFO] [stdout] test learning_projects::intermediate::test::test_parse_xml ... FAILED
[INFO] [stdout] test learning_projects::intermediate::test::test_quiz ... FAILED
[INFO] [stdout] test learning_projects::intermediate::test::test_matrix ... ok
[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' (37) 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:     0x5d7e27a2f452 - std::backtrace_rs::backtrace::libunwind::trace::h786de35fecf3582f
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5d7e27a2f452 - std::backtrace_rs::backtrace::trace_unsynchronized::h4a7da1a2a64387f1
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5d7e27a2f452 - std::sys::backtrace::_print_fmt::h6bd7d500070c788c
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x5d7e27a2f452 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h6d82c1afff976903
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x5d7e27a40c0f - core::fmt::rt::Argument::fmt::hc4ce6d643d397690
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x5d7e27a40c0f - core::fmt::write::hb1e7ca88b6a3936e
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/core/src/fmt/mod.rs:1469:25
[INFO] [stdout]    6:     0x5d7e279fcc83 - std::io::default_write_fmt::haffd49d96f1984a8
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x5d7e279fcc83 - std::io::Write::write_fmt::h027871c57cf57c01
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x5d7e27a08b52 - std::sys::backtrace::BacktraceLock::print::ha2430613ee79d059
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x5d7e27a0d68f - std::panicking::default_hook::{{closure}}::hdbd2db9e5c303cf6
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panicking.rs:301:27
[INFO] [stdout]   10:     0x5d7e27a0d521 - std::panicking::default_hook::hed93c70cba5fdcf0
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panicking.rs:325:9
[INFO] [stdout]   11:     0x5d7e279bb37e - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hd0ee8b569efc6a07
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/alloc/src/boxed.rs:2099:9
[INFO] [stdout]   12:     0x5d7e279bb37e - test::test_main_with_exit_callback::{{closure}}::hf10864b576ecd15d
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x5d7e27a0dc9f - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h3a55ca34534c0d00
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/alloc/src/boxed.rs:2099:9
[INFO] [stdout]   14:     0x5d7e27a0dc9f - std::panicking::panic_with_hook::h3862d766c2cec19b
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panicking.rs:842:13
[INFO] [stdout]   15:     0x5d7e27a0dafa - std::panicking::panic_handler::{{closure}}::hb95eb402b5e28ee1
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panicking.rs:707:13
[INFO] [stdout]   16:     0x5d7e27a08c99 - std::sys::backtrace::__rust_end_short_backtrace::hf73a26dc1835d85a
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/sys/backtrace.rs:174:18
[INFO] [stdout]   17:     0x5d7e279f0e1d - __rustc[6ed5915ee467787]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panicking.rs:698:5
[INFO] [stdout]   18:     0x5d7e27a48960 - core::panicking::panic_fmt::h3454303eb8e6f7cd
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x5d7e27a47da6 - core::result::unwrap_failed::h2380020e6daeb464
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/core/src/result.rs:1862:5
[INFO] [stdout]   20:     0x5d7e27961f86 - core::result::Result<T,E>::unwrap::hd4909d99cdbf5884
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/core/src/result.rs:1233:23
[INFO] [stdout]   21:     0x5d7e27961f86 - learning_rust::learning_projects::intermediate::test::test_parse_xml::h575a8135bdded7df
[INFO] [stdout]                                at /opt/rustwide/workdir/src/learning_projects/intermediate.rs:302:58
[INFO] [stdout]   22:     0x5d7e27962367 - learning_rust::learning_projects::intermediate::test::test_parse_xml::{{closure}}::h53b638496cb0d3e0
[INFO] [stdout]                                at /opt/rustwide/workdir/src/learning_projects/intermediate.rs:296:24
[INFO] [stdout]   23:     0x5d7e2797b766 - core::ops::function::FnOnce::call_once::h2ec151635ee66ff2
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x5d7e279bb15b - core::ops::function::FnOnce::call_once::ha729ee35d2fab541
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x5d7e279bb15b - test::__rust_begin_short_backtrace::ha40f4db8207e1111
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/test/src/lib.rs:663:18
[INFO] [stdout]   26:     0x5d7e279cf1dd - test::run_test_in_process::{{closure}}::hc1b77cda5d44f0f3
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/test/src/lib.rs:686:74
[INFO] [stdout]   27:     0x5d7e279cf1dd - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h1dbea1de64785521
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   28:     0x5d7e279cf1dd - std::panicking::catch_unwind::do_call::hd5febe9affd5a1b3
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panicking.rs:590:40
[INFO] [stdout]   29:     0x5d7e279cf1dd - std::panicking::catch_unwind::h51ea89627559b6f4
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panicking.rs:553:19
[INFO] [stdout]   30:     0x5d7e279cf1dd - std::panic::catch_unwind::hb8b8c2367cae3d66
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x5d7e279cf1dd - test::run_test_in_process::ha5b55801407ea100
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/test/src/lib.rs:686:27
[INFO] [stdout]   32:     0x5d7e279cf1dd - test::run_test::{{closure}}::h0b9d4072b527abf5
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/test/src/lib.rs:607:43
[INFO] [stdout]   33:     0x5d7e279a86f4 - test::run_test::{{closure}}::hb1056b5731205822
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/test/src/lib.rs:637:41
[INFO] [stdout]   34:     0x5d7e279a86f4 - std::sys::backtrace::__rust_begin_short_backtrace::hb61ff5a34023c7ef
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/sys/backtrace.rs:158:18
[INFO] [stdout]   35:     0x5d7e279ac02a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hb0a83c0e8b353cff
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/thread/mod.rs:562:17
[INFO] [stdout]   36:     0x5d7e279ac02a - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hb4f32cb008535298
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   37:     0x5d7e279ac02a - std::panicking::catch_unwind::do_call::h16d110e4fc35789a
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panicking.rs:590:40
[INFO] [stdout]   38:     0x5d7e279ac02a - std::panicking::catch_unwind::hea9118f355699c4b
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panicking.rs:553:19
[INFO] [stdout]   39:     0x5d7e279ac02a - std::panic::catch_unwind::hf4b3c2a06d3f42f5
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x5d7e279ac02a - std::thread::Builder::spawn_unchecked_::{{closure}}::h3f4cb733a52d53d5
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/thread/mod.rs:560:30
[INFO] [stdout]   41:     0x5d7e279ac02a - core::ops::function::FnOnce::call_once{{vtable.shim}}::h4052f0967b37caeb
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x5d7e27a0408f - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h7ec433abd3f148b4
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/alloc/src/boxed.rs:2085:9
[INFO] [stdout]   43:     0x5d7e27a0408f - std::sys::thread::unix::Thread::new::thread_start::he514622d3d7ba65c
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/sys/thread/unix.rs:124:17
[INFO] [stdout]   44:     0x7166c4ee3aa4 - <unknown>
[INFO] [stdout]   45:     0x7166c4f70a64 - 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' (39) 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:     0x5d7e27a2f452 - std::backtrace_rs::backtrace::libunwind::trace::h786de35fecf3582f
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5d7e27a2f452 - std::backtrace_rs::backtrace::trace_unsynchronized::h4a7da1a2a64387f1
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5d7e27a2f452 - std::sys::backtrace::_print_fmt::h6bd7d500070c788c
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x5d7e27a2f452 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h6d82c1afff976903
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x5d7e27a40c0f - core::fmt::rt::Argument::fmt::hc4ce6d643d397690
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x5d7e27a40c0f - core::fmt::write::hb1e7ca88b6a3936e
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/core/src/fmt/mod.rs:1469:25
[INFO] [stdout]    6:     0x5d7e279fcc83 - std::io::default_write_fmt::haffd49d96f1984a8
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x5d7e279fcc83 - std::io::Write::write_fmt::h027871c57cf57c01
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x5d7e27a08b52 - std::sys::backtrace::BacktraceLock::print::ha2430613ee79d059
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x5d7e27a0d68f - std::panicking::default_hook::{{closure}}::hdbd2db9e5c303cf6
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panicking.rs:301:27
[INFO] [stdout]   10:     0x5d7e27a0d521 - std::panicking::default_hook::hed93c70cba5fdcf0
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panicking.rs:325:9
[INFO] [stdout]   11:     0x5d7e279bb37e - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hd0ee8b569efc6a07
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/alloc/src/boxed.rs:2099:9
[INFO] [stdout]   12:     0x5d7e279bb37e - test::test_main_with_exit_callback::{{closure}}::hf10864b576ecd15d
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x5d7e27a0dc9f - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h3a55ca34534c0d00
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/alloc/src/boxed.rs:2099:9
[INFO] [stdout]   14:     0x5d7e27a0dc9f - std::panicking::panic_with_hook::h3862d766c2cec19b
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panicking.rs:842:13
[INFO] [stdout]   15:     0x5d7e27a0dac6 - std::panicking::panic_handler::{{closure}}::hb95eb402b5e28ee1
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panicking.rs:700:13
[INFO] [stdout]   16:     0x5d7e27a08c99 - std::sys::backtrace::__rust_end_short_backtrace::hf73a26dc1835d85a
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/sys/backtrace.rs:174:18
[INFO] [stdout]   17:     0x5d7e279f0e1d - __rustc[6ed5915ee467787]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panicking.rs:698:5
[INFO] [stdout]   18:     0x5d7e27a48960 - core::panicking::panic_fmt::h3454303eb8e6f7cd
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x5d7e27a4893c - core::panicking::panic::hb290d809a6d6b140
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/core/src/panicking.rs:150:5
[INFO] [stdout]   20:     0x5d7e27962ac9 - learning_rust::learning_projects::intermediate::test::test_quiz::hd49c765cc1712f4f
[INFO] [stdout]                                at /opt/rustwide/workdir/src/learning_projects/intermediate.rs:292:9
[INFO] [stdout]   21:     0x5d7e27962b07 - learning_rust::learning_projects::intermediate::test::test_quiz::{{closure}}::hf0d609c3711375f0
[INFO] [stdout]                                at /opt/rustwide/workdir/src/learning_projects/intermediate.rs:290:19
[INFO] [stdout]   22:     0x5d7e2797b546 - core::ops::function::FnOnce::call_once::h1475097de11aa419
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   23:     0x5d7e279bb15b - core::ops::function::FnOnce::call_once::ha729ee35d2fab541
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x5d7e279bb15b - test::__rust_begin_short_backtrace::ha40f4db8207e1111
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/test/src/lib.rs:663:18
[INFO] [stdout]   25:     0x5d7e279cf1dd - test::run_test_in_process::{{closure}}::hc1b77cda5d44f0f3
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/test/src/lib.rs:686:74
[INFO] [stdout]   26:     0x5d7e279cf1dd - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h1dbea1de64785521
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   27:     0x5d7e279cf1dd - std::panicking::catch_unwind::do_call::hd5febe9affd5a1b3
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panicking.rs:590:40
[INFO] [stdout]   28:     0x5d7e279cf1dd - std::panicking::catch_unwind::h51ea89627559b6f4
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panicking.rs:553:19
[INFO] [stdout]   29:     0x5d7e279cf1dd - std::panic::catch_unwind::hb8b8c2367cae3d66
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panic.rs:359:14
[INFO] [stdout]   30:     0x5d7e279cf1dd - test::run_test_in_process::ha5b55801407ea100
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/test/src/lib.rs:686:27
[INFO] [stdout]   31:     0x5d7e279cf1dd - test::run_test::{{closure}}::h0b9d4072b527abf5
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/test/src/lib.rs:607:43
[INFO] [stdout]   32:     0x5d7e279a86f4 - test::run_test::{{closure}}::hb1056b5731205822
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/test/src/lib.rs:637:41
[INFO] [stdout]   33:     0x5d7e279a86f4 - std::sys::backtrace::__rust_begin_short_backtrace::hb61ff5a34023c7ef
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/sys/backtrace.rs:158:18
[INFO] [stdout]   34:     0x5d7e279ac02a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hb0a83c0e8b353cff
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/thread/mod.rs:562:17
[INFO] [stdout]   35:     0x5d7e279ac02a - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hb4f32cb008535298
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   36:     0x5d7e279ac02a - std::panicking::catch_unwind::do_call::h16d110e4fc35789a
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panicking.rs:590:40
[INFO] [stdout]   37:     0x5d7e279ac02a - std::panicking::catch_unwind::hea9118f355699c4b
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panicking.rs:553:19
[INFO] [stdout]   38:     0x5d7e279ac02a - std::panic::catch_unwind::hf4b3c2a06d3f42f5
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panic.rs:359:14
[INFO] [stdout]   39:     0x5d7e279ac02a - std::thread::Builder::spawn_unchecked_::{{closure}}::h3f4cb733a52d53d5
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/thread/mod.rs:560:30
[INFO] [stdout]   40:     0x5d7e279ac02a - core::ops::function::FnOnce::call_once{{vtable.shim}}::h4052f0967b37caeb
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   41:     0x5d7e27a0408f - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h7ec433abd3f148b4
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/alloc/src/boxed.rs:2085:9
[INFO] [stdout]   42:     0x5d7e27a0408f - std::sys::thread::unix::Thread::new::thread_start::he514622d3d7ba65c
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/sys/thread/unix.rs:124:17
[INFO] [stdout]   43:     0x7166c4ee3aa4 - <unknown>
[INFO] [stdout]   44:     0x7166c4f70a64 - 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] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "2fa7da439a6a49075762b8fcbd239c193118730cc714e8dd06732b0cdc567ff0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fa7da439a6a49075762b8fcbd239c193118730cc714e8dd06732b0cdc567ff0", kill_on_drop: false }`
[INFO] [stdout] 2fa7da439a6a49075762b8fcbd239c193118730cc714e8dd06732b0cdc567ff0
