[INFO] cloning repository https://github.com/makabaka1880/stacky
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/makabaka1880/stacky" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmakabaka1880%2Fstacky", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmakabaka1880%2Fstacky'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d6c153b11560b1651e1230b748764f1d0807b89e
[INFO] testing makabaka1880/stacky against 1.99.0-beta.1+cargoflags=--release for beta-release-1.99-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmakabaka1880%2Fstacky" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/makabaka1880/stacky
[INFO] finished tweaking git repo https://github.com/makabaka1880/stacky
[INFO] tweaked toml for git repo https://github.com/makabaka1880/stacky written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/makabaka1880/stacky on toolchain 1.99.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/makabaka1880/stacky 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" "+1.99.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] testing makabaka1880/stacky against 1.99.0-beta.1+cargoflags=--release for beta-release-1.99-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmakabaka1880%2Fstacky" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/makabaka1880/stacky
[INFO] finished tweaking git repo https://github.com/makabaka1880/stacky
[INFO] tweaked toml for git repo https://github.com/makabaka1880/stacky written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/makabaka1880/stacky on toolchain 1.99.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/makabaka1880/stacky 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" "+1.99.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 2c0930383cb5684dc3ce0f47480243c12d7a04ba3351631a13e7b381c5e3822a
[INFO] running `Command { std: "docker" "start" "2c0930383cb5684dc3ce0f47480243c12d7a04ba3351631a13e7b381c5e3822a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c0930383cb5684dc3ce0f47480243c12d7a04ba3351631a13e7b381c5e3822a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "2c0930383cb5684dc3ce0f47480243c12d7a04ba3351631a13e7b381c5e3822a" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c0930383cb5684dc3ce0f47480243c12d7a04ba3351631a13e7b381c5e3822a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "2c0930383cb5684dc3ce0f47480243c12d7a04ba3351631a13e7b381c5e3822a" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.24
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.125
[INFO] [stderr]    Compiling rustversion v1.0.22
[INFO] [stderr]    Compiling bumpalo v3.20.3
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling futures-core v0.3.32
[INFO] [stderr]    Compiling pin-project-lite v0.2.17
[INFO] [stderr]    Compiling cfg-if v1.0.4
[INFO] [stderr]    Compiling futures-task v0.3.32
[INFO] [stderr]    Compiling slab v0.4.12
[INFO] [stderr]    Compiling once_cell v1.21.4
[INFO] [stderr]    Compiling sexp v1.1.4
[INFO] [stderr]    Compiling futures-util v0.3.32
[INFO] [stderr]    Compiling wasm-bindgen v0.2.125
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.125
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.125
[INFO] [stderr]    Compiling js-sys v0.3.102
[INFO] [stderr]    Compiling serde-wasm-bindgen v0.6.5
[INFO] [stderr]    Compiling stacky v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `get_back` is never used
[INFO] [stdout]   --> src/interpreter.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl Config {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 47 |     pub fn get_back(&self) -> &Tree {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `RED` is never used
[INFO] [stdout]   --> src/io_utils.rs:11:7
[INFO] [stdout]    |
[INFO] [stdout] 11 | const RED: &str = "\x1b[0;31m";
[INFO] [stdout]    |       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `GREEN` is never used
[INFO] [stdout]   --> src/io_utils.rs:12:7
[INFO] [stdout]    |
[INFO] [stdout] 12 | const GREEN: &str = "\x1b[0;32m";
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BOLD` is never used
[INFO] [stdout]   --> src/io_utils.rs:13:7
[INFO] [stdout]    |
[INFO] [stdout] 13 | const BOLD: &str = "\x1b[1m";
[INFO] [stdout]    |       ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `RESET` is never used
[INFO] [stdout]   --> src/io_utils.rs:14:7
[INFO] [stdout]    |
[INFO] [stdout] 14 | const RESET: &str = "\x1b[0m";
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_err` is never used
[INFO] [stdout]   --> src/io_utils.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub fn print_err(input: &str) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_succ` is never used
[INFO] [stdout]   --> src/io_utils.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub fn print_succ(input: &str) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_tree` is never used
[INFO] [stdout]   --> src/io_utils.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn print_tree(tree: &parser::Tree) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_tree_helper` is never used
[INFO] [stdout]   --> src/io_utils.rs:28:4
[INFO] [stdout]    |
[INFO] [stdout] 28 | fn print_tree_helper(tree: &parser::Tree, depth: usize) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `get_back`, `stack_len`, `peek_tree`, and `run_all` are never used
[INFO] [stdout]   --> src/interpreter.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl Config {
[INFO] [stdout]    | ----------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 47 |     pub fn get_back(&self) -> &Tree {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 58 |     pub fn stack_len(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 64 |     pub fn peek_tree(&self, depth: usize) -> Option<&Tree> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 73 |     pub fn run_all(&mut self) -> Result<(), String> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 21.25s
[INFO] running `Command { std: "docker" "inspect" "2c0930383cb5684dc3ce0f47480243c12d7a04ba3351631a13e7b381c5e3822a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "2c0930383cb5684dc3ce0f47480243c12d7a04ba3351631a13e7b381c5e3822a" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stdout] warning: method `get_back` is never used
[INFO] [stdout]   --> src/interpreter.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl Config {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 47 |     pub fn get_back(&self) -> &Tree {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling stacky v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant `RED` is never used
[INFO] [stdout]   --> src/io_utils.rs:11:7
[INFO] [stdout]    |
[INFO] [stdout] 11 | const RED: &str = "\x1b[0;31m";
[INFO] [stdout]    |       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `GREEN` is never used
[INFO] [stdout]   --> src/io_utils.rs:12:7
[INFO] [stdout]    |
[INFO] [stdout] 12 | const GREEN: &str = "\x1b[0;32m";
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BOLD` is never used
[INFO] [stdout]   --> src/io_utils.rs:13:7
[INFO] [stdout]    |
[INFO] [stdout] 13 | const BOLD: &str = "\x1b[1m";
[INFO] [stdout]    |       ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `RESET` is never used
[INFO] [stdout]   --> src/io_utils.rs:14:7
[INFO] [stdout]    |
[INFO] [stdout] 14 | const RESET: &str = "\x1b[0m";
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_err` is never used
[INFO] [stdout]   --> src/io_utils.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub fn print_err(input: &str) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_succ` is never used
[INFO] [stdout]   --> src/io_utils.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub fn print_succ(input: &str) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_tree` is never used
[INFO] [stdout]   --> src/io_utils.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn print_tree(tree: &parser::Tree) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_tree_helper` is never used
[INFO] [stdout]   --> src/io_utils.rs:28:4
[INFO] [stdout]    |
[INFO] [stdout] 28 | fn print_tree_helper(tree: &parser::Tree, depth: usize) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `get_back`, `stack_len`, `peek_tree`, and `run_all` are never used
[INFO] [stdout]   --> src/interpreter.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl Config {
[INFO] [stdout]    | ----------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 47 |     pub fn get_back(&self) -> &Tree {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 58 |     pub fn stack_len(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 64 |     pub fn peek_tree(&self, depth: usize) -> Option<&Tree> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 73 |     pub fn run_all(&mut self) -> Result<(), String> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_back` is never used
[INFO] [stdout]   --> src/interpreter.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl Config {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 47 |     pub fn get_back(&self) -> &Tree {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `RED` is never used
[INFO] [stdout]   --> src/io_utils.rs:11:7
[INFO] [stdout]    |
[INFO] [stdout] 11 | const RED: &str = "\x1b[0;31m";
[INFO] [stdout]    |       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `GREEN` is never used
[INFO] [stdout]   --> src/io_utils.rs:12:7
[INFO] [stdout]    |
[INFO] [stdout] 12 | const GREEN: &str = "\x1b[0;32m";
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BOLD` is never used
[INFO] [stdout]   --> src/io_utils.rs:13:7
[INFO] [stdout]    |
[INFO] [stdout] 13 | const BOLD: &str = "\x1b[1m";
[INFO] [stdout]    |       ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `RESET` is never used
[INFO] [stdout]   --> src/io_utils.rs:14:7
[INFO] [stdout]    |
[INFO] [stdout] 14 | const RESET: &str = "\x1b[0m";
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_err` is never used
[INFO] [stdout]   --> src/io_utils.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub fn print_err(input: &str) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_succ` is never used
[INFO] [stdout]   --> src/io_utils.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub fn print_succ(input: &str) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_tree` is never used
[INFO] [stdout]   --> src/io_utils.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn print_tree(tree: &parser::Tree) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_tree_helper` is never used
[INFO] [stdout]   --> src/io_utils.rs:28:4
[INFO] [stdout]    |
[INFO] [stdout] 28 | fn print_tree_helper(tree: &parser::Tree, depth: usize) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.22s
[INFO] running `Command { std: "docker" "inspect" "2c0930383cb5684dc3ce0f47480243c12d7a04ba3351631a13e7b381c5e3822a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "2c0930383cb5684dc3ce0f47480243c12d7a04ba3351631a13e7b381c5e3822a" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "test" "--frozen" "--release", kill_on_drop: false }`
[INFO] [stderr] warning: method `get_back` is never used
[INFO] [stderr]   --> src/interpreter.rs:47:12
[INFO] [stderr]    |
[INFO] [stderr] 16 | impl Config {
[INFO] [stderr]    | ----------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 47 |     pub fn get_back(&self) -> &Tree {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `RED` is never used
[INFO] [stderr]   --> src/io_utils.rs:11:7
[INFO] [stderr]    |
[INFO] [stderr] 11 | const RED: &str = "\x1b[0;31m";
[INFO] [stderr]    |       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `GREEN` is never used
[INFO] [stderr]   --> src/io_utils.rs:12:7
[INFO] [stderr]    |
[INFO] [stderr] 12 | const GREEN: &str = "\x1b[0;32m";
[INFO] [stderr]    |       ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `BOLD` is never used
[INFO] [stderr]   --> src/io_utils.rs:13:7
[INFO] [stderr]    |
[INFO] [stderr] 13 | const BOLD: &str = "\x1b[1m";
[INFO] [stderr]    |       ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `RESET` is never used
[INFO] [stderr]   --> src/io_utils.rs:14:7
[INFO] [stderr]    |
[INFO] [stderr] 14 | const RESET: &str = "\x1b[0m";
[INFO] [stderr]    |       ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `print_err` is never used
[INFO] [stderr]   --> src/io_utils.rs:16:8
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub fn print_err(input: &str) {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `print_succ` is never used
[INFO] [stderr]   --> src/io_utils.rs:20:8
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub fn print_succ(input: &str) {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `print_tree` is never used
[INFO] [stderr]   --> src/io_utils.rs:24:8
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub fn print_tree(tree: &parser::Tree) {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `print_tree_helper` is never used
[INFO] [stderr]   --> src/io_utils.rs:28:4
[INFO] [stderr]    |
[INFO] [stderr] 28 | fn print_tree_helper(tree: &parser::Tree, depth: usize) {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `stacky` (lib) generated 9 warnings
[INFO] [stderr] warning: `stacky` (lib test) generated 9 warnings (9 duplicates)
[INFO] [stderr] warning: methods `get_back`, `stack_len`, `peek_tree`, and `run_all` are never used
[INFO] [stderr]   --> src/interpreter.rs:47:12
[INFO] [stderr]    |
[INFO] [stderr] 16 | impl Config {
[INFO] [stderr]    | ----------- methods in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 47 |     pub fn get_back(&self) -> &Tree {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 58 |     pub fn stack_len(&self) -> usize {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 64 |     pub fn peek_tree(&self, depth: usize) -> Option<&Tree> {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 73 |     pub fn run_all(&mut self) -> Result<(), String> {
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `stacky` (bin "stacky" test) generated 1 warning
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/release/deps/stacky-cb160469db75af83)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/release/deps/stacky-d197a69f86145a95)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests stacky
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2c0930383cb5684dc3ce0f47480243c12d7a04ba3351631a13e7b381c5e3822a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c0930383cb5684dc3ce0f47480243c12d7a04ba3351631a13e7b381c5e3822a", kill_on_drop: false }`
[INFO] [stdout] 2c0930383cb5684dc3ce0f47480243c12d7a04ba3351631a13e7b381c5e3822a
