[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 1.54.0 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcodonnell%2Fblackjack_sim" "/workspace/builds/worker-83/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-83/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/codonnell/blackjack_sim on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "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-83/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: "/workspace/cargo-home/bin/cargo" "+1.54.0" "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-83/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6fe06e879a6c122dab18a944f7c9bb1822fc481f5dbc595e6487dfe5f97727ae
[INFO] running `Command { std: "docker" "start" "-a" "6fe06e879a6c122dab18a944f7c9bb1822fc481f5dbc595e6487dfe5f97727ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6fe06e879a6c122dab18a944f7c9bb1822fc481f5dbc595e6487dfe5f97727ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fe06e879a6c122dab18a944f7c9bb1822fc481f5dbc595e6487dfe5f97727ae", kill_on_drop: false }`
[INFO] [stdout] 6fe06e879a6c122dab18a944f7c9bb1822fc481f5dbc595e6487dfe5f97727ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] daf689fb44ace6e95f59636a87a9806f962b197bd9d20adfbbaf92f18136b6f4
[INFO] running `Command { std: "docker" "start" "-a" "daf689fb44ace6e95f59636a87a9806f962b197bd9d20adfbbaf92f18136b6f4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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: 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]      |                                                          ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]      = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]      = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]      |                                                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]      = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]      |                                                                         ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]      = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]      |                                                                                         ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]      = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]      |        ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` on by default
[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]      = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `will_reshuffle`
[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 is never used: `reshuffle_deck`
[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 is never used: `all_deck_expectations`
[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 is never used: `deck_samples`
[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 is never used: `computed_decks`
[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 is never used: `random_deck`
[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 is never used: `append_advantage_data`
[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 is never used: `continuously_compute_deck_advantages`
[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: associated function is never used: `draw`
[INFO] [stdout]     --> src/main.rs:1244:8
[INFO] [stdout]      |
[INFO] [stdout] 1244 |     fn draw(&mut self) -> u16 {
[INFO] [stdout]      |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_deck`
[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 is never used: `parse_hand`
[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 is never used: `best_action`
[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 8.55s
[INFO] running `Command { std: "docker" "inspect" "daf689fb44ace6e95f59636a87a9806f962b197bd9d20adfbbaf92f18136b6f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "daf689fb44ace6e95f59636a87a9806f962b197bd9d20adfbbaf92f18136b6f4", kill_on_drop: false }`
[INFO] [stdout] daf689fb44ace6e95f59636a87a9806f962b197bd9d20adfbbaf92f18136b6f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2e5a6ca68cf10ab5e536d153053ca55c47f6e702186c3ed9595a9e38fb7b9f7f
[INFO] running `Command { std: "docker" "start" "-a" "2e5a6ca68cf10ab5e536d153053ca55c47f6e702186c3ed9595a9e38fb7b9f7f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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: 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]      |                                                          ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]      = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]      = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]      |                                                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]      = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]      |                                                                         ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]      = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]      |                                                                                         ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]      = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]      |        ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` on by default
[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]      = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `will_reshuffle`
[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 is never used: `all_deck_expectations`
[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 is never used: `deck_samples`
[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 is never used: `computed_decks`
[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 is never used: `random_deck`
[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 is never used: `append_advantage_data`
[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 is never used: `continuously_compute_deck_advantages`
[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: associated function is never used: `draw`
[INFO] [stdout]     --> src/main.rs:1244:8
[INFO] [stdout]      |
[INFO] [stdout] 1244 |     fn draw(&mut self) -> u16 {
[INFO] [stdout]      |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_deck`
[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 is never used: `parse_hand`
[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 is never used: `best_action`
[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 7.74s
[INFO] running `Command { std: "docker" "inspect" "2e5a6ca68cf10ab5e536d153053ca55c47f6e702186c3ed9595a9e38fb7b9f7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e5a6ca68cf10ab5e536d153053ca55c47f6e702186c3ed9595a9e38fb7b9f7f", kill_on_drop: false }`
[INFO] [stdout] 2e5a6ca68cf10ab5e536d153053ca55c47f6e702186c3ed9595a9e38fb7b9f7f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b1c4b1aca7d8acafd6db56ba907b5e87c2d27e7cb38ee2a78ecce80462c633a9
[INFO] running `Command { std: "docker" "start" "-a" "b1c4b1aca7d8acafd6db56ba907b5e87c2d27e7cb38ee2a78ecce80462c633a9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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: 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]      |                                                          ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]      = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]      = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]      |                                                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]      |
[INFO] [stderr]      = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]      = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]      |                                                                         ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]      |
[INFO] [stderr]      = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]      = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]      |                                                                                         ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]      |
[INFO] [stderr]      = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]      = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]      |        ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_parens)]` on by default
[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]      = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]      = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `will_reshuffle`
[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 is never used: `all_deck_expectations`
[INFO] [stderr]     --> src/main.rs:1127:4
[INFO] [stderr]      |
[INFO] [stderr] 1127 | fn all_deck_expectations() -> () {
[INFO] [stderr]      |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `deck_samples`
[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 is never used: `computed_decks`
[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 is never used: `random_deck`
[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 is never used: `append_advantage_data`
[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 is never used: `continuously_compute_deck_advantages`
[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: associated function is never used: `draw`
[INFO] [stderr]     --> src/main.rs:1244:8
[INFO] [stderr]      |
[INFO] [stderr] 1244 |     fn draw(&mut self) -> u16 {
[INFO] [stderr]      |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_deck`
[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 is never used: `parse_hand`
[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 is never used: `best_action`
[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: 21 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.64s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/blackjack_sim-36f9d0e89e9af243)
[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_valid_draw ... ok
[INFO] [stdout] test test_stand_expectation ... ok
[INFO] [stdout] test test_valid_draw_to ... ok
[INFO] [stdout] test two_naturals_equal ... ok
[INFO] [stdout] test test_valid_replace_from ... 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 - should panic ... ok
[INFO] [stdout] test test_invalid_hit_expectation - should panic ... ok
[INFO] [stdout] test test_invalid_replace_from - 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_non_starting_insurance_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_ace_insurance_expectation - should panic ... ok
[INFO] [stdout] test test_not_same_cards_split_expectation - should panic ... ok
[INFO] [stdout] test test_not_two_cards_split_expectation - should panic ... ok
[INFO] [stdout] test test_reshuffle_deck ... FAILED
[INFO] [stderr] error: test failed, to rerun pass '--bin blackjack_sim'
[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:     0x55f6a8a88330 - std::backtrace_rs::backtrace::libunwind::trace::h34055254b57d8e79
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stdout]    1:     0x55f6a8a88330 - std::backtrace_rs::backtrace::trace_unsynchronized::h8f1e3fbd9afff6ec
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x55f6a8a88330 - std::sys_common::backtrace::_print_fmt::h3a99a796b770c360
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stdout]    3:     0x55f6a8a88330 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h32d1f94a80615d18
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stdout]    4:     0x55f6a8aab39c - core::fmt::write::h306731c068f7162c
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/fmt/mod.rs:1110:17
[INFO] [stdout]    5:     0x55f6a8a85255 - std::io::Write::write_fmt::h87f19b0a2cd190bc
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/io/mod.rs:1588:15
[INFO] [stdout]    6:     0x55f6a8a8a49b - std::sys_common::backtrace::_print::h5abaa2601a852287
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stdout]    7:     0x55f6a8a8a49b - std::sys_common::backtrace::print::h8d81445442bb638f
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stdout]    8:     0x55f6a8a8a49b - std::panicking::default_hook::{{closure}}::hcfe804496a9fa747
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:208:50
[INFO] [stdout]    9:     0x55f6a8a89fac - std::panicking::default_hook::hbea8e3ccf2ba8901
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:222:9
[INFO] [stdout]   10:     0x55f6a8a8ab64 - std::panicking::rust_panic_with_hook::h7ee9e1a2d0f8975a
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:622:17
[INFO] [stdout]   11:     0x55f6a8a8a617 - std::panicking::begin_panic_handler::{{closure}}::h8ab3b4491718b2c7
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:517:13
[INFO] [stdout]   12:     0x55f6a8a8882c - std::sys_common::backtrace::__rust_end_short_backtrace::hd489062ffa586a9f
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stdout]   13:     0x55f6a8a8a5a9 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:515:5
[INFO] [stdout]   14:     0x55f6a8a1c6d1 - core::panicking::panic_fmt::hca6330e3e14086b4
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/panicking.rs:92:14
[INFO] [stdout]   15:     0x55f6a8a1c61d - core::panicking::panic::h1a48d878ff3dcd40
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/panicking.rs:50:5
[INFO] [stdout]   16:     0x55f6a8a29d4c - blackjack_sim::test_reshuffle_deck::h1875eb25b7e293bf
[INFO] [stdout]                                at /opt/rustwide/workdir/src/main.rs:868:5
[INFO] [stdout]   17:     0x55f6a8a29b5a - blackjack_sim::test_reshuffle_deck::{{closure}}::ha448472a58c20658
[INFO] [stdout]                                at /opt/rustwide/workdir/src/main.rs:855:1
[INFO] [stdout]   18:     0x55f6a8a328de - core::ops::function::FnOnce::call_once::h1fd5eec5536f46a1
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   19:     0x55f6a8a5c633 - core::ops::function::FnOnce::call_once::h152e7e439ff59e19
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   20:     0x55f6a8a5c633 - test::__rust_begin_short_backtrace::h0908f3b1fdbb72ab
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/test/src/lib.rs:577:5
[INFO] [stdout]   21:     0x55f6a8a5b0f0 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hf6d2a51e5587546c
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   22:     0x55f6a8a5b0f0 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h8af660f3a89ef593
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panic.rs:347:9
[INFO] [stdout]   23:     0x55f6a8a5b0f0 - std::panicking::try::do_call::hd36aef60f84b6d36
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:401:40
[INFO] [stdout]   24:     0x55f6a8a5b0f0 - std::panicking::try::h9932b4480e69817c
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:365:19
[INFO] [stdout]   25:     0x55f6a8a5b0f0 - std::panic::catch_unwind::h6aa177099cfff5f8
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panic.rs:434:14
[INFO] [stdout]   26:     0x55f6a8a5b0f0 - test::run_test_in_process::h5884d6f2d99e20c3
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/test/src/lib.rs:600:18
[INFO] [stdout]   27:     0x55f6a8a5b0f0 - test::run_test::run_test_inner::{{closure}}::h6fdc58c6d5f5b6e3
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/test/src/lib.rs:492:39
[INFO] [stdout]   28:     0x55f6a8a347a2 - test::run_test::run_test_inner::{{closure}}::h408365d67a78ade8
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/test/src/lib.rs:519:37
[INFO] [stdout]   29:     0x55f6a8a347a2 - std::sys_common::backtrace::__rust_begin_short_backtrace::hb560b77c4f701523
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stdout]   30:     0x55f6a8a38358 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::hf2e7831dad93c597
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/thread/mod.rs:481:17
[INFO] [stdout]   31:     0x55f6a8a38358 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hd2e08783d8be4d02
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panic.rs:347:9
[INFO] [stdout]   32:     0x55f6a8a38358 - std::panicking::try::do_call::h062597b7acfd6b82
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:401:40
[INFO] [stdout]   33:     0x55f6a8a38358 - std::panicking::try::h0d7b79db04c14552
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:365:19
[INFO] [stdout]   34:     0x55f6a8a38358 - std::panic::catch_unwind::hb01a0b5e7c8cd43b
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panic.rs:434:14
[INFO] [stdout]   35:     0x55f6a8a38358 - std::thread::Builder::spawn_unchecked::{{closure}}::h5bde48cc887e0d1e
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/thread/mod.rs:480:30
[INFO] [stdout]   36:     0x55f6a8a38358 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h745ea30807a29e55
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   37:     0x55f6a8a8f627 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h7ece6cfefaff1005
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   38:     0x55f6a8a8f627 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hb8b48e55c21f193e
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   39:     0x55f6a8a8f627 - std::sys::unix::thread::Thread::new::thread_start::h8c7c4450dba62914
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys/unix/thread.rs:71:17
[INFO] [stdout]   40:     0x7fc0d81cb609 - start_thread
[INFO] [stdout]   41:     0x7fc0d7f9d293 - clone
[INFO] [stdout]   42:                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 21.14s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b1c4b1aca7d8acafd6db56ba907b5e87c2d27e7cb38ee2a78ecce80462c633a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1c4b1aca7d8acafd6db56ba907b5e87c2d27e7cb38ee2a78ecce80462c633a9", kill_on_drop: false }`
[INFO] [stdout] b1c4b1aca7d8acafd6db56ba907b5e87c2d27e7cb38ee2a78ecce80462c633a9
