[INFO] cloning repository https://github.com/askreet/blackjack-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/askreet/blackjack-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faskreet%2Fblackjack-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faskreet%2Fblackjack-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 307186ad695cf05d76d84f1d3e880da1642dcbba
[INFO] checking askreet/blackjack-rs against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faskreet%2Fblackjack-rs" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/askreet/blackjack-rs on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/askreet/blackjack-rs
[INFO] finished tweaking git repo https://github.com/askreet/blackjack-rs
[INFO] tweaked toml for git repo https://github.com/askreet/blackjack-rs written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/askreet/blackjack-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a58d53b7387a9ee8f94ece372da3ab3f0a6cdefe0144caf2fe8d8e9d231ee7b9
[INFO] running `Command { std: "docker" "start" "-a" "a58d53b7387a9ee8f94ece372da3ab3f0a6cdefe0144caf2fe8d8e9d231ee7b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a58d53b7387a9ee8f94ece372da3ab3f0a6cdefe0144caf2fe8d8e9d231ee7b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a58d53b7387a9ee8f94ece372da3ab3f0a6cdefe0144caf2fe8d8e9d231ee7b9", kill_on_drop: false }`
[INFO] [stdout] a58d53b7387a9ee8f94ece372da3ab3f0a6cdefe0144caf2fe8d8e9d231ee7b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ff6b5670be3f19d4b1ac41da6c592ff00fddfb0ede6b448cc7c263f5ed3a57d9
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ff6b5670be3f19d4b1ac41da6c592ff00fddfb0ede6b448cc7c263f5ed3a57d9", kill_on_drop: false }`
[INFO] [stderr]     Checking rand_core v0.2.0
[INFO] [stderr]     Checking rand v0.5.0
[INFO] [stderr]     Checking blackjack-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `card::Card`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use card::Card;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `deck::Deck`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use deck::Deck;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `card::Card`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use card::Card;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `deck::Deck`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use deck::Deck;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Card`, `Rank::*`, `Suit::*`
[INFO] [stdout]   --> src/deck.rs:38:16
[INFO] [stdout]    |
[INFO] [stdout] 38 |     use card::{Card, Rank, Rank::*, Suit, Suit::*};
[INFO] [stdout]    |                ^^^^        ^^^^^^^        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Suit::*`
[INFO] [stdout]    --> src/game.rs:126:25
[INFO] [stdout]     |
[INFO] [stdout] 126 |     use card::{Rank::*, Suit::*};
[INFO] [stdout]     |                         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: private type `game::Error` in public interface (error E0446)
[INFO] [stdout]   --> src/game.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn deal_hand(&mut self, bet: Chips) -> Result<()> {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(private_in_public)]` 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 a future release!
[INFO] [stdout]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `of`
[INFO] [stdout]   --> src/deck.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn of(cards: Vec<Card>) -> Deck {
[INFO] [stdout]    |            ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NotEnoughChips`
[INFO] [stdout]   --> src/game.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     NotEnoughChips,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Result`
[INFO] [stdout]   --> src/game.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | type Result<T> = result::Result<T, Error>;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `deal_hand`
[INFO] [stdout]   --> src/game.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn deal_hand(&mut self, bet: Chips) -> Result<()> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: private type `game::Error` in public interface (error E0446)
[INFO] [stdout]   --> src/game.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn deal_hand(&mut self, bet: Chips) -> Result<()> {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(private_in_public)]` 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 a future release!
[INFO] [stdout]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NotEnoughChips`
[INFO] [stdout]   --> src/game.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     NotEnoughChips,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.94s
[INFO] running `Command { std: "docker" "inspect" "ff6b5670be3f19d4b1ac41da6c592ff00fddfb0ede6b448cc7c263f5ed3a57d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff6b5670be3f19d4b1ac41da6c592ff00fddfb0ede6b448cc7c263f5ed3a57d9", kill_on_drop: false }`
[INFO] [stdout] ff6b5670be3f19d4b1ac41da6c592ff00fddfb0ede6b448cc7c263f5ed3a57d9