[INFO] cloning repository https://github.com/codonnell/blackjack_sim
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/codonnell/blackjack_sim" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcodonnell%2Fblackjack_sim", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcodonnell%2Fblackjack_sim'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b6200bc679f6e8e9e273572818c12b4d71972183
[INFO] testing codonnell/blackjack_sim against beta-2023-04-20 for beta-1.70-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcodonnell%2Fblackjack_sim" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/codonnell/blackjack_sim on toolchain beta-2023-04-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/codonnell/blackjack_sim
[INFO] finished tweaking git repo https://github.com/codonnell/blackjack_sim
[INFO] tweaked toml for git repo https://github.com/codonnell/blackjack_sim written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/codonnell/blackjack_sim 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" "+beta-2023-04-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde v1.0.12
[INFO] [stderr]   Downloaded csv-core v0.1.3
[INFO] [stderr]   Downloaded csv v1.0.0-beta.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3f0ba36d6bf3deac4b38ccfa00f61370ecb7d22fe97092b68a9ae70b24117886
[INFO] running `Command { std: "docker" "start" "-a" "3f0ba36d6bf3deac4b38ccfa00f61370ecb7d22fe97092b68a9ae70b24117886", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3f0ba36d6bf3deac4b38ccfa00f61370ecb7d22fe97092b68a9ae70b24117886", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f0ba36d6bf3deac4b38ccfa00f61370ecb7d22fe97092b68a9ae70b24117886", kill_on_drop: false }`
[INFO] [stdout] 3f0ba36d6bf3deac4b38ccfa00f61370ecb7d22fe97092b68a9ae70b24117886
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] da40940b05ba50d347f498f9bc517f7cb99833589e79c5f856ed2d05f8389e8c
[INFO] running `Command { std: "docker" "start" "-a" "da40940b05ba50d347f498f9bc517f7cb99833589e79c5f856ed2d05f8389e8c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.47
[INFO] [stderr]    Compiling serde v1.0.12
[INFO] [stderr]    Compiling memchr v1.0.1
[INFO] [stderr]    Compiling rand v0.3.16
[INFO] [stderr]    Compiling time v0.1.38
[INFO] [stderr]    Compiling csv-core v0.1.3
[INFO] [stderr]    Compiling csv v1.0.0-beta.4
[INFO] [stderr]    Compiling blackjack_sim v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::path::Path`
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::path::Path;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::env`
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::env;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::thread;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]     --> src/main.rs:1253:8
[INFO] [stdout]      |
[INFO] [stdout] 1253 |     if (cards.len() == 11) {
[INFO] [stdout]      |        ^                 ^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1253 -     if (cards.len() == 11) {
[INFO] [stdout] 1253 +     if cards.len() == 11 {
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/main.rs:1146:58
[INFO] [stdout]      |
[INFO] [stdout] 1146 | fn deck_samples(filename: &str) -> Result<Vec<Deck>, Box<Error>> {
[INFO] [stdout]      |                                                          ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]      = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]      |
[INFO] [stdout] 1146 | fn deck_samples(filename: &str) -> Result<Vec<Deck>, Box<dyn Error>> {
[INFO] [stdout]      |                                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/main.rs:1170:64
[INFO] [stdout]      |
[INFO] [stdout] 1170 | fn computed_decks(filename: &str) -> Result<HashSet<Deck>, Box<Error>> {
[INFO] [stdout]      |                                                                ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]      |
[INFO] [stdout] 1170 | fn computed_decks(filename: &str) -> Result<HashSet<Deck>, Box<dyn Error>> {
[INFO] [stdout]      |                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/main.rs:1196:73
[INFO] [stdout]      |
[INFO] [stdout] 1196 | fn random_deck(samples_path: &str, data_path: &str) -> Result<Deck, Box<Error>> {
[INFO] [stdout]      |                                                                         ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]      |
[INFO] [stdout] 1196 | fn random_deck(samples_path: &str, data_path: &str) -> Result<Deck, Box<dyn Error>> {
[INFO] [stdout]      |                                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/main.rs:1211:89
[INFO] [stdout]      |
[INFO] [stdout] 1211 | fn append_advantage_data(data_path: &str, deck: Deck, advantage: f32) -> Result<(), Box<Error>> {
[INFO] [stdout]      |                                                                                         ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]      |
[INFO] [stdout] 1211 | fn append_advantage_data(data_path: &str, deck: Deck, advantage: f32) -> Result<(), Box<dyn Error>> {
[INFO] [stdout]      |                                                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `deck`
[INFO] [stdout]    --> src/main.rs:840:19
[INFO] [stdout]     |
[INFO] [stdout] 840 | fn will_reshuffle(deck: &Deck) -> bool {
[INFO] [stdout]     |                   ^^^^ help: if this is intentional, prefix it with an underscore: `_deck`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `best_expectation` is never read
[INFO] [stdout]     --> src/main.rs:1298:13
[INFO] [stdout]      |
[INFO] [stdout] 1298 |             best_expectation = split_exp;
[INFO] [stdout]      |             ^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout]      = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `will_reshuffle` is never used
[INFO] [stdout]    --> src/main.rs:840:4
[INFO] [stdout]     |
[INFO] [stdout] 840 | fn will_reshuffle(deck: &Deck) -> bool {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `reshuffle_deck` is never used
[INFO] [stdout]    --> src/main.rs:844:4
[INFO] [stdout]     |
[INFO] [stdout] 844 | fn reshuffle_deck(mut state: &mut GameState) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `all_deck_expectations` is never used
[INFO] [stdout]     --> src/main.rs:1127:4
[INFO] [stdout]      |
[INFO] [stdout] 1127 | fn all_deck_expectations() -> () {
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `deck_samples` is never used
[INFO] [stdout]     --> src/main.rs:1146:4
[INFO] [stdout]      |
[INFO] [stdout] 1146 | fn deck_samples(filename: &str) -> Result<Vec<Deck>, Box<Error>> {
[INFO] [stdout]      |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `computed_decks` is never used
[INFO] [stdout]     --> src/main.rs:1170:4
[INFO] [stdout]      |
[INFO] [stdout] 1170 | fn computed_decks(filename: &str) -> Result<HashSet<Deck>, Box<Error>> {
[INFO] [stdout]      |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `random_deck` is never used
[INFO] [stdout]     --> src/main.rs:1196:4
[INFO] [stdout]      |
[INFO] [stdout] 1196 | fn random_deck(samples_path: &str, data_path: &str) -> Result<Deck, Box<Error>> {
[INFO] [stdout]      |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `append_advantage_data` is never used
[INFO] [stdout]     --> src/main.rs:1211:4
[INFO] [stdout]      |
[INFO] [stdout] 1211 | fn append_advantage_data(data_path: &str, deck: Deck, advantage: f32) -> Result<(), Box<Error>> {
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `continuously_compute_deck_advantages` is never used
[INFO] [stdout]     --> src/main.rs:1221:4
[INFO] [stdout]      |
[INFO] [stdout] 1221 | fn continuously_compute_deck_advantages(samples_path: &str, data_path: &str) -> () {
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `draw` is never used
[INFO] [stdout]     --> src/main.rs:1244:8
[INFO] [stdout]      |
[INFO] [stdout] 1243 | impl OrderedDeck {
[INFO] [stdout]      | ---------------- method in this implementation
[INFO] [stdout] 1244 |     fn draw(&mut self) -> u16 {
[INFO] [stdout]      |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_deck` is never used
[INFO] [stdout]     --> src/main.rs:1251:4
[INFO] [stdout]      |
[INFO] [stdout] 1251 | fn parse_deck(deck_str: &str) -> Deck {
[INFO] [stdout]      |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_hand` is never used
[INFO] [stdout]     --> src/main.rs:1267:4
[INFO] [stdout]      |
[INFO] [stdout] 1267 | fn parse_hand(hand_str: &str) -> Vec<u16> {
[INFO] [stdout]      |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `best_action` is never used
[INFO] [stdout]     --> src/main.rs:1280:4
[INFO] [stdout]      |
[INFO] [stdout] 1280 | fn best_action(mut state: &mut GameState) -> String {
[INFO] [stdout]      |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 22 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.53s
[INFO] running `Command { std: "docker" "inspect" "da40940b05ba50d347f498f9bc517f7cb99833589e79c5f856ed2d05f8389e8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da40940b05ba50d347f498f9bc517f7cb99833589e79c5f856ed2d05f8389e8c", kill_on_drop: false }`
[INFO] [stdout] da40940b05ba50d347f498f9bc517f7cb99833589e79c5f856ed2d05f8389e8c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1c0df05e8ff5c3a553fa994098495de5fafdea4507afb8981d8556ed3bdd2af3
[INFO] running `Command { std: "docker" "start" "-a" "1c0df05e8ff5c3a553fa994098495de5fafdea4507afb8981d8556ed3bdd2af3", kill_on_drop: false }`
[INFO] [stderr]    Compiling blackjack_sim v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::path::Path`
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::path::Path;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::env`
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::env;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::thread;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]     --> src/main.rs:1253:8
[INFO] [stdout]      |
[INFO] [stdout] 1253 |     if (cards.len() == 11) {
[INFO] [stdout]      |        ^                 ^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1253 -     if (cards.len() == 11) {
[INFO] [stdout] 1253 +     if cards.len() == 11 {
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/main.rs:1146:58
[INFO] [stdout]      |
[INFO] [stdout] 1146 | fn deck_samples(filename: &str) -> Result<Vec<Deck>, Box<Error>> {
[INFO] [stdout]      |                                                          ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]      = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]      |
[INFO] [stdout] 1146 | fn deck_samples(filename: &str) -> Result<Vec<Deck>, Box<dyn Error>> {
[INFO] [stdout]      |                                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/main.rs:1170:64
[INFO] [stdout]      |
[INFO] [stdout] 1170 | fn computed_decks(filename: &str) -> Result<HashSet<Deck>, Box<Error>> {
[INFO] [stdout]      |                                                                ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]      |
[INFO] [stdout] 1170 | fn computed_decks(filename: &str) -> Result<HashSet<Deck>, Box<dyn Error>> {
[INFO] [stdout]      |                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/main.rs:1196:73
[INFO] [stdout]      |
[INFO] [stdout] 1196 | fn random_deck(samples_path: &str, data_path: &str) -> Result<Deck, Box<Error>> {
[INFO] [stdout]      |                                                                         ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]      |
[INFO] [stdout] 1196 | fn random_deck(samples_path: &str, data_path: &str) -> Result<Deck, Box<dyn Error>> {
[INFO] [stdout]      |                                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/main.rs:1211:89
[INFO] [stdout]      |
[INFO] [stdout] 1211 | fn append_advantage_data(data_path: &str, deck: Deck, advantage: f32) -> Result<(), Box<Error>> {
[INFO] [stdout]      |                                                                                         ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]      |
[INFO] [stdout] 1211 | fn append_advantage_data(data_path: &str, deck: Deck, advantage: f32) -> Result<(), Box<dyn Error>> {
[INFO] [stdout]      |                                                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `deck`
[INFO] [stdout]    --> src/main.rs:840:19
[INFO] [stdout]     |
[INFO] [stdout] 840 | fn will_reshuffle(deck: &Deck) -> bool {
[INFO] [stdout]     |                   ^^^^ help: if this is intentional, prefix it with an underscore: `_deck`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `best_expectation` is never read
[INFO] [stdout]     --> src/main.rs:1298:13
[INFO] [stdout]      |
[INFO] [stdout] 1298 |             best_expectation = split_exp;
[INFO] [stdout]      |             ^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout]      = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `will_reshuffle` is never used
[INFO] [stdout]    --> src/main.rs:840:4
[INFO] [stdout]     |
[INFO] [stdout] 840 | fn will_reshuffle(deck: &Deck) -> bool {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `all_deck_expectations` is never used
[INFO] [stdout]     --> src/main.rs:1127:4
[INFO] [stdout]      |
[INFO] [stdout] 1127 | fn all_deck_expectations() -> () {
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `deck_samples` is never used
[INFO] [stdout]     --> src/main.rs:1146:4
[INFO] [stdout]      |
[INFO] [stdout] 1146 | fn deck_samples(filename: &str) -> Result<Vec<Deck>, Box<Error>> {
[INFO] [stdout]      |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `computed_decks` is never used
[INFO] [stdout]     --> src/main.rs:1170:4
[INFO] [stdout]      |
[INFO] [stdout] 1170 | fn computed_decks(filename: &str) -> Result<HashSet<Deck>, Box<Error>> {
[INFO] [stdout]      |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `random_deck` is never used
[INFO] [stdout]     --> src/main.rs:1196:4
[INFO] [stdout]      |
[INFO] [stdout] 1196 | fn random_deck(samples_path: &str, data_path: &str) -> Result<Deck, Box<Error>> {
[INFO] [stdout]      |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `append_advantage_data` is never used
[INFO] [stdout]     --> src/main.rs:1211:4
[INFO] [stdout]      |
[INFO] [stdout] 1211 | fn append_advantage_data(data_path: &str, deck: Deck, advantage: f32) -> Result<(), Box<Error>> {
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `continuously_compute_deck_advantages` is never used
[INFO] [stdout]     --> src/main.rs:1221:4
[INFO] [stdout]      |
[INFO] [stdout] 1221 | fn continuously_compute_deck_advantages(samples_path: &str, data_path: &str) -> () {
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `draw` is never used
[INFO] [stdout]     --> src/main.rs:1244:8
[INFO] [stdout]      |
[INFO] [stdout] 1243 | impl OrderedDeck {
[INFO] [stdout]      | ---------------- method in this implementation
[INFO] [stdout] 1244 |     fn draw(&mut self) -> u16 {
[INFO] [stdout]      |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_deck` is never used
[INFO] [stdout]     --> src/main.rs:1251:4
[INFO] [stdout]      |
[INFO] [stdout] 1251 | fn parse_deck(deck_str: &str) -> Deck {
[INFO] [stdout]      |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_hand` is never used
[INFO] [stdout]     --> src/main.rs:1267:4
[INFO] [stdout]      |
[INFO] [stdout] 1267 | fn parse_hand(hand_str: &str) -> Vec<u16> {
[INFO] [stdout]      |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `best_action` is never used
[INFO] [stdout]     --> src/main.rs:1280:4
[INFO] [stdout]      |
[INFO] [stdout] 1280 | fn best_action(mut state: &mut GameState) -> String {
[INFO] [stdout]      |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 21 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "1c0df05e8ff5c3a553fa994098495de5fafdea4507afb8981d8556ed3bdd2af3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c0df05e8ff5c3a553fa994098495de5fafdea4507afb8981d8556ed3bdd2af3", kill_on_drop: false }`
[INFO] [stdout] 1c0df05e8ff5c3a553fa994098495de5fafdea4507afb8981d8556ed3bdd2af3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4264f491fe6c9738296350b01cf604fc42441af2ace3f167e52ed61d27e59058
[INFO] running `Command { std: "docker" "start" "-a" "4264f491fe6c9738296350b01cf604fc42441af2ace3f167e52ed61d27e59058", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::path::Path`
[INFO] [stderr]  --> src/main.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::path::Path;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::env`
[INFO] [stderr]   --> src/main.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::env;
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::thread`
[INFO] [stderr]   --> src/main.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::thread;
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]     --> src/main.rs:1253:8
[INFO] [stderr]      |
[INFO] [stderr] 1253 |     if (cards.len() == 11) {
[INFO] [stderr]      |        ^                 ^
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]      |
[INFO] [stderr] 1253 -     if (cards.len() == 11) {
[INFO] [stderr] 1253 +     if cards.len() == 11 {
[INFO] [stderr]      |
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/main.rs:1146:58
[INFO] [stderr]      |
[INFO] [stderr] 1146 | fn deck_samples(filename: &str) -> Result<Vec<Deck>, Box<Error>> {
[INFO] [stderr]      |                                                          ^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]      = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]      |
[INFO] [stderr] 1146 | fn deck_samples(filename: &str) -> Result<Vec<Deck>, Box<dyn Error>> {
[INFO] [stderr]      |                                                          +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/main.rs:1170:64
[INFO] [stderr]      |
[INFO] [stderr] 1170 | fn computed_decks(filename: &str) -> Result<HashSet<Deck>, Box<Error>> {
[INFO] [stderr]      |                                                                ^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]      |
[INFO] [stderr] 1170 | fn computed_decks(filename: &str) -> Result<HashSet<Deck>, Box<dyn Error>> {
[INFO] [stderr]      |                                                                +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/main.rs:1196:73
[INFO] [stderr]      |
[INFO] [stderr] 1196 | fn random_deck(samples_path: &str, data_path: &str) -> Result<Deck, Box<Error>> {
[INFO] [stderr]      |                                                                         ^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]      |
[INFO] [stderr] 1196 | fn random_deck(samples_path: &str, data_path: &str) -> Result<Deck, Box<dyn Error>> {
[INFO] [stderr]      |                                                                         +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/main.rs:1211:89
[INFO] [stderr]      |
[INFO] [stderr] 1211 | fn append_advantage_data(data_path: &str, deck: Deck, advantage: f32) -> Result<(), Box<Error>> {
[INFO] [stderr]      |                                                                                         ^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]      |
[INFO] [stderr] 1211 | fn append_advantage_data(data_path: &str, deck: Deck, advantage: f32) -> Result<(), Box<dyn Error>> {
[INFO] [stderr]      |                                                                                         +++
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `deck`
[INFO] [stderr]    --> src/main.rs:840:19
[INFO] [stderr]     |
[INFO] [stderr] 840 | fn will_reshuffle(deck: &Deck) -> bool {
[INFO] [stderr]     |                   ^^^^ help: if this is intentional, prefix it with an underscore: `_deck`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `best_expectation` is never read
[INFO] [stderr]     --> src/main.rs:1298:13
[INFO] [stderr]      |
[INFO] [stderr] 1298 |             best_expectation = split_exp;
[INFO] [stderr]      |             ^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: maybe it is overwritten before being read?
[INFO] [stderr]      = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `will_reshuffle` is never used
[INFO] [stderr]    --> src/main.rs:840:4
[INFO] [stderr]     |
[INFO] [stderr] 840 | fn will_reshuffle(deck: &Deck) -> bool {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `all_deck_expectations` is never used
[INFO] [stderr]     --> src/main.rs:1127:4
[INFO] [stderr]      |
[INFO] [stderr] 1127 | fn all_deck_expectations() -> () {
[INFO] [stderr]      |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `deck_samples` is never used
[INFO] [stderr]     --> src/main.rs:1146:4
[INFO] [stderr]      |
[INFO] [stderr] 1146 | fn deck_samples(filename: &str) -> Result<Vec<Deck>, Box<Error>> {
[INFO] [stderr]      |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `computed_decks` is never used
[INFO] [stderr]     --> src/main.rs:1170:4
[INFO] [stderr]      |
[INFO] [stderr] 1170 | fn computed_decks(filename: &str) -> Result<HashSet<Deck>, Box<Error>> {
[INFO] [stderr]      |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `random_deck` is never used
[INFO] [stderr]     --> src/main.rs:1196:4
[INFO] [stderr]      |
[INFO] [stderr] 1196 | fn random_deck(samples_path: &str, data_path: &str) -> Result<Deck, Box<Error>> {
[INFO] [stderr]      |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `append_advantage_data` is never used
[INFO] [stderr]     --> src/main.rs:1211:4
[INFO] [stderr]      |
[INFO] [stderr] 1211 | fn append_advantage_data(data_path: &str, deck: Deck, advantage: f32) -> Result<(), Box<Error>> {
[INFO] [stderr]      |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `continuously_compute_deck_advantages` is never used
[INFO] [stderr]     --> src/main.rs:1221:4
[INFO] [stderr]      |
[INFO] [stderr] 1221 | fn continuously_compute_deck_advantages(samples_path: &str, data_path: &str) -> () {
[INFO] [stderr]      |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `draw` is never used
[INFO] [stderr]     --> src/main.rs:1244:8
[INFO] [stderr]      |
[INFO] [stderr] 1243 | impl OrderedDeck {
[INFO] [stderr]      | ---------------- method in this implementation
[INFO] [stderr] 1244 |     fn draw(&mut self) -> u16 {
[INFO] [stderr]      |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `parse_deck` is never used
[INFO] [stderr]     --> src/main.rs:1251:4
[INFO] [stderr]      |
[INFO] [stderr] 1251 | fn parse_deck(deck_str: &str) -> Deck {
[INFO] [stderr]      |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `parse_hand` is never used
[INFO] [stderr]     --> src/main.rs:1267:4
[INFO] [stderr]      |
[INFO] [stderr] 1267 | fn parse_hand(hand_str: &str) -> Vec<u16> {
[INFO] [stderr]      |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `best_action` is never used
[INFO] [stderr]     --> src/main.rs:1280:4
[INFO] [stderr]      |
[INFO] [stderr] 1280 | fn best_action(mut state: &mut GameState) -> String {
[INFO] [stderr]      |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `blackjack_sim` (bin "blackjack_sim" test) generated 21 warnings (run `cargo fix --bin "blackjack_sim" --tests` to apply 9 suggestions)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/blackjack_sim-15e09c7a80bf764a)
[INFO] [stdout] 
[INFO] [stdout] running 37 tests
[INFO] [stdout] test five_card_charlie_beats_value ... ok
[INFO] [stdout] test equal_values_are_equal ... ok
[INFO] [stdout] test five_card_charlie_loses_to_natural ... ok
[INFO] [stdout] test greater_five_card_charlie_wins ... ok
[INFO] [stdout] test greater_value_wins ... ok
[INFO] [stdout] test hard_hand_values ... ok
[INFO] [stdout] test min_hand_values ... ok
[INFO] [stdout] test natural_beats_five_card_charlie ... ok
[INFO] [stdout] test soft_hand_values ... ok
[INFO] [stdout] test test_card_prob ... ok
[INFO] [stdout] test test_dealer_stands ... ok
[INFO] [stdout] test test_dealer_scores ... ok
[INFO] [stdout] test test_double_expectation ... ok
[INFO] [stdout] test test_hand_expectation ... ok
[INFO] [stdout] test test_insurance_expectation ... ok
[INFO] [stdout] test test_replace ... ok
[INFO] [stdout] test test_score ... ok
[INFO] [stdout] test test_stand_expectation ... ok
[INFO] [stdout] test test_valid_draw ... ok
[INFO] [stdout] test test_valid_draw_to ... ok
[INFO] [stdout] test test_valid_replace_from ... ok
[INFO] [stdout] test two_naturals_equal ... ok
[INFO] [stdout] test value_beats_bust ... ok
[INFO] [stdout] test test_first_split_hand_insurance_expectation - should panic ... ok
[INFO] [stdout] test test_invalid_draw_to - should panic ... ok
[INFO] [stdout] test test_is_split_insurance_expectation - should panic ... ok
[INFO] [stdout] test test_invalid_hit_expectation - should panic ... ok
[INFO] [stdout] test test_not_failed_insurance_split_expectation - should panic ... ok
[INFO] [stdout] test test_not_is_split_split_expectation - should panic ... ok
[INFO] [stdout] test test_non_starting_insurance_expectation - should panic ... ok
[INFO] [stdout] test test_invalid_replace_from - should panic ... ok
[INFO] [stdout] test test_reshuffle_deck ... FAILED
[INFO] [stdout] test test_not_same_cards_split_expectation - should panic ... ok
[INFO] [stdout] test test_invalid_draw - should panic ... ok
[INFO] [stdout] test test_not_two_cards_split_expectation - should panic ... ok
[INFO] [stdout] test test_non_ace_insurance_expectation - should panic ... ok
[INFO] [stdout] test test_hit_expectation ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- test_reshuffle_deck stdout ----
[INFO] [stdout] thread 'test_reshuffle_deck' panicked at 'assertion failed: 49 == state.deck.size', src/main.rs:868:5
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x56160c15bb2a - std::backtrace_rs::backtrace::libunwind::trace::h2f05d0192276a8f6
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
[INFO] [stdout]    1:     0x56160c15bb2a - std::backtrace_rs::backtrace::trace_unsynchronized::hedc23dff7a1af150
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x56160c15bb2a - std::sys_common::backtrace::_print_fmt::h17541ef7592f3ce2
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/sys_common/backtrace.rs:65:5
[INFO] [stdout]    3:     0x56160c15bb2a - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h20f75df5ab0c0792
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stdout]    4:     0x56160c17fe1f - core::fmt::write::h78109e6f466b3af6
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/fmt/mod.rs:1254:17
[INFO] [stdout]    5:     0x56160c158e75 - std::io::Write::write_fmt::hd24bfb68a1b35a25
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/io/mod.rs:1698:15
[INFO] [stdout]    6:     0x56160c15b8f5 - std::sys_common::backtrace::_print::h8dac57a9f8fbf9a5
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stdout]    7:     0x56160c15b8f5 - std::sys_common::backtrace::print::hf9ecbf41d1aa712f
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stdout]    8:     0x56160c15d5ae - std::panicking::default_hook::{{closure}}::h04c07acfc84ca028
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:269:22
[INFO] [stdout]    9:     0x56160c15d2e1 - std::panicking::default_hook::h01f6bb23e1eceb2c
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:285:9
[INFO] [stdout]   10:     0x56160c12c9cb - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h87fe9f7b2fd49e4c
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/alloc/src/boxed.rs:1987:9
[INFO] [stdout]   11:     0x56160c12c9cb - test::test_main::{{closure}}::he94d679243a7531b
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/test/src/lib.rs:134:21
[INFO] [stdout]   12:     0x56160c15dc94 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h3f2d6d8b14c4769f
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/alloc/src/boxed.rs:1987:9
[INFO] [stdout]   13:     0x56160c15dc94 - std::panicking::rust_panic_with_hook::h2bb3722bbaf2f6df
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:695:13
[INFO] [stdout]   14:     0x56160c15d9c2 - std::panicking::begin_panic_handler::{{closure}}::h91bc7f36a4be011b
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:580:13
[INFO] [stdout]   15:     0x56160c15bf96 - std::sys_common::backtrace::__rust_end_short_backtrace::h8b3d3717114f9e59
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/sys_common/backtrace.rs:150:18
[INFO] [stdout]   16:     0x56160c15d762 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:578:5
[INFO] [stdout]   17:     0x56160c0e2c23 - core::panicking::panic_fmt::hfd368e3fbdabea26
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/panicking.rs:67:14
[INFO] [stdout]   18:     0x56160c0e2cbd - core::panicking::panic::h3f9042d09bd0bf2e
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/panicking.rs:117:5
[INFO] [stdout]   19:     0x56160c0f18be - blackjack_sim::test_reshuffle_deck::h1abe784f12be0755
[INFO] [stdout]                                at /opt/rustwide/workdir/src/main.rs:868:5
[INFO] [stdout]   20:     0x56160c0f1647 - blackjack_sim::test_reshuffle_deck::{{closure}}::hbfa456010df6e951
[INFO] [stdout]                                at /opt/rustwide/workdir/src/main.rs:855:26
[INFO] [stdout]   21:     0x56160c0f38d5 - core::ops::function::FnOnce::call_once::hdb0c2fe870c8321a
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   22:     0x56160c13189f - core::ops::function::FnOnce::call_once::ha6a70e79f7481a7e
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   23:     0x56160c13189f - test::__rust_begin_short_backtrace::hce33033019b61e69
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/test/src/lib.rs:655:18
[INFO] [stdout]   24:     0x56160c0ff08c - test::run_test::{{closure}}::h858d3528838ae3e5
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/test/src/lib.rs:646:30
[INFO] [stdout]   25:     0x56160c0ff08c - core::ops::function::FnOnce::call_once{{vtable.shim}}::he8ac2b00f01ae79e
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   26:     0x56160c130976 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h8093d25b522725ef
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/alloc/src/boxed.rs:1973:9
[INFO] [stdout]   27:     0x56160c130976 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h5c334c204e4a3913
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/panic/unwind_safe.rs:271:9
[INFO] [stdout]   28:     0x56160c130976 - std::panicking::try::do_call::ha8b740c7b9478074
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:485:40
[INFO] [stdout]   29:     0x56160c130976 - std::panicking::try::h5d34f63d0e41b64e
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:449:19
[INFO] [stdout]   30:     0x56160c130976 - std::panic::catch_unwind::hcfbb511e1aa7fc67
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panic.rs:140:14
[INFO] [stdout]   31:     0x56160c130976 - test::run_test_in_process::h9abda90f802eaf21
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/test/src/lib.rs:678:27
[INFO] [stdout]   32:     0x56160c130976 - test::run_test::run_test_inner::{{closure}}::h0f058de91f6c6edf
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/test/src/lib.rs:572:39
[INFO] [stdout]   33:     0x56160c0f9895 - test::run_test::run_test_inner::{{closure}}::h5ca48a4c59c6c1fb
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/test/src/lib.rs:599:37
[INFO] [stdout]   34:     0x56160c0f9895 - std::sys_common::backtrace::__rust_begin_short_backtrace::h32bd51e1495d4a33
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/sys_common/backtrace.rs:134:18
[INFO] [stdout]   35:     0x56160c0fedd1 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hc086fae9b128b2db
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/thread/mod.rs:526:17
[INFO] [stdout]   36:     0x56160c0fedd1 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hb66571888d270d43
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/panic/unwind_safe.rs:271:9
[INFO] [stdout]   37:     0x56160c0fedd1 - std::panicking::try::do_call::h4fa2ef4f6e51fecf
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:485:40
[INFO] [stdout]   38:     0x56160c0fedd1 - std::panicking::try::h1e9e22b8584489b5
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:449:19
[INFO] [stdout]   39:     0x56160c0fedd1 - std::panic::catch_unwind::h44698a3de0e0769e
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panic.rs:140:14
[INFO] [stdout]   40:     0x56160c0fedd1 - std::thread::Builder::spawn_unchecked_::{{closure}}::h50153abde3fe239e
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/thread/mod.rs:525:30
[INFO] [stdout]   41:     0x56160c0fedd1 - core::ops::function::FnOnce::call_once{{vtable.shim}}::hbe5bbf6f38394364
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x56160c162165 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h0d83cb2920a49046
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/alloc/src/boxed.rs:1973:9
[INFO] [stdout]   43:     0x56160c162165 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hbe0a008aa7d9ef59
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/alloc/src/boxed.rs:1973:9
[INFO] [stdout]   44:     0x56160c162165 - std::sys::unix::thread::Thread::new::thread_start::h3a466996bdf6b1f9
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/sys/unix/thread.rs:108:17
[INFO] [stdout]   45:     0x7f4ee6a9db43 - <unknown>
[INFO] [stdout]   46:     0x7f4ee6b2ebb4 - __clone
[INFO] [stdout]   47:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     test_reshuffle_deck
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 36 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 7.81s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--bin blackjack_sim`
[INFO] running `Command { std: "docker" "inspect" "4264f491fe6c9738296350b01cf604fc42441af2ace3f167e52ed61d27e59058", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4264f491fe6c9738296350b01cf604fc42441af2ace3f167e52ed61d27e59058", kill_on_drop: false }`
[INFO] [stdout] 4264f491fe6c9738296350b01cf604fc42441af2ace3f167e52ed61d27e59058
