[INFO] fetching crate blackjack 0.1.1...
[INFO] testing blackjack-0.1.1 against master#d98a5da813da67eb189387b8ccfb73cf481275d8+rustflags=-Copt-level=3 for pr-138759
[INFO] extracting crate blackjack 0.1.1 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate blackjack 0.1.1
[INFO] finished tweaking crates.io crate blackjack 0.1.1
[INFO] tweaked toml for crates.io crate blackjack 0.1.1 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate blackjack 0.1.1 on toolchain d98a5da813da67eb189387b8ccfb73cf481275d8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate blackjack 0.1.1 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" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libc v0.2.72
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9a12672360ad085283013155bbae41e1d5d1ff892afa64e1b18d71f1922a4aed
[INFO] running `Command { std: "docker" "start" "-a" "9a12672360ad085283013155bbae41e1d5d1ff892afa64e1b18d71f1922a4aed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9a12672360ad085283013155bbae41e1d5d1ff892afa64e1b18d71f1922a4aed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a12672360ad085283013155bbae41e1d5d1ff892afa64e1b18d71f1922a4aed", kill_on_drop: false }`
[INFO] [stdout] 9a12672360ad085283013155bbae41e1d5d1ff892afa64e1b18d71f1922a4aed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Copt-level=3" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 567194a704d4702252ec95db19610b9fb1aa92ba50dcaefff7e84b1a838ec85d
[INFO] running `Command { std: "docker" "start" "-a" "567194a704d4702252ec95db19610b9fb1aa92ba50dcaefff7e84b1a838ec85d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.72
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling blackjack v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: attribute should be applied to a free function, impl method or static
[INFO] [stdout]   --> lib/card.rs:37:2
[INFO] [stdout]    |
[INFO] [stdout] 37 |       #[no_mangle]
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout] 38 |       #[repr(C)]
[INFO] [stdout] 39 | /     pub struct Deck {
[INFO] [stdout] 40 | |         cards: Vec<Card>,
[INFO] [stdout] 41 | |         deck_count: usize,
[INFO] [stdout] 42 | |         card_index: usize
[INFO] [stdout] 43 | |     }
[INFO] [stdout]    | |_____- not a free function, impl method or static
[INFO] [stdout]    |
[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: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: attribute should be applied to a free function, impl method or static
[INFO] [stdout]   --> lib/player.rs:20:2
[INFO] [stdout]    |
[INFO] [stdout] 20 |       #[no_mangle]
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout] 21 |       #[derive(Clone)]
[INFO] [stdout] 22 | /     pub struct Player {
[INFO] [stdout] 23 | |         name: String,
[INFO] [stdout] 24 | |         is_dealer: bool,
[INFO] [stdout] 25 | |         hands: Vec<Hand>,
[INFO] [stdout] 26 | |         balance: i32,
[INFO] [stdout] 27 | |         standing: i32
[INFO] [stdout] 28 | |     }
[INFO] [stdout]    | |_____- not a free function, impl method or static
[INFO] [stdout]    |
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: attribute should be applied to a free function, impl method or static
[INFO] [stdout]   --> lib/player.rs:30:2
[INFO] [stdout]    |
[INFO] [stdout] 30 |       #[no_mangle]
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout] 31 |       #[derive(Clone)]
[INFO] [stdout] 32 | /     pub struct Hand {
[INFO] [stdout] 33 | |         cards: Vec<Card>,
[INFO] [stdout] 34 | |         can_surrender: bool,
[INFO] [stdout] 35 | |         surrendered: bool,
[INFO] [stdout] 36 | |         is_set: bool,
[INFO] [stdout] 37 | |         wager: i32
[INFO] [stdout] 38 | |     }
[INFO] [stdout]    | |_____- not a free function, impl method or static
[INFO] [stdout]    |
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `is_dealer` is never read
[INFO] [stdout]   --> lib/player.rs:24:3
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub struct Player {
[INFO] [stdout]    |                ------ field in this struct
[INFO] [stdout] 23 |         name: String,
[INFO] [stdout] 24 |         is_dealer: bool,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Player` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> lib/player.rs:56:20
[INFO] [stdout]    |
[INFO] [stdout] 56 |         pub fn hand_iter(&self) -> Iter<Hand> {
[INFO] [stdout]    |                          ^^^^^     ---------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                          |
[INFO] [stdout]    |                          this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 56 |         pub fn hand_iter(&self) -> Iter<'_, Hand> {
[INFO] [stdout]    |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> lib/player.rs:255:20
[INFO] [stdout]     |
[INFO] [stdout] 255 |         pub fn card_iter(&self) -> Iter<Card> {
[INFO] [stdout]     |                          ^^^^^     ---------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 255 |         pub fn card_iter(&self) -> Iter<'_, Card> {
[INFO] [stdout]     |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.05s
[INFO] running `Command { std: "docker" "inspect" "567194a704d4702252ec95db19610b9fb1aa92ba50dcaefff7e84b1a838ec85d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "567194a704d4702252ec95db19610b9fb1aa92ba50dcaefff7e84b1a838ec85d", kill_on_drop: false }`
[INFO] [stdout] 567194a704d4702252ec95db19610b9fb1aa92ba50dcaefff7e84b1a838ec85d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Copt-level=3" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 27e68382084cd84dea863837ef1d8c908a46d1ba8959e3b6dbdd0d6628b190a7
[INFO] running `Command { std: "docker" "start" "-a" "27e68382084cd84dea863837ef1d8c908a46d1ba8959e3b6dbdd0d6628b190a7", kill_on_drop: false }`
[INFO] [stderr]    Compiling blackjack v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: attribute should be applied to a free function, impl method or static
[INFO] [stdout]   --> lib/card.rs:37:2
[INFO] [stdout]    |
[INFO] [stdout] 37 |       #[no_mangle]
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout] 38 |       #[repr(C)]
[INFO] [stdout] 39 | /     pub struct Deck {
[INFO] [stdout] 40 | |         cards: Vec<Card>,
[INFO] [stdout] 41 | |         deck_count: usize,
[INFO] [stdout] 42 | |         card_index: usize
[INFO] [stdout] 43 | |     }
[INFO] [stdout]    | |_____- not a free function, impl method or static
[INFO] [stdout]    |
[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: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: attribute should be applied to a free function, impl method or static
[INFO] [stdout]   --> lib/player.rs:20:2
[INFO] [stdout]    |
[INFO] [stdout] 20 |       #[no_mangle]
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout] 21 |       #[derive(Clone)]
[INFO] [stdout] 22 | /     pub struct Player {
[INFO] [stdout] 23 | |         name: String,
[INFO] [stdout] 24 | |         is_dealer: bool,
[INFO] [stdout] 25 | |         hands: Vec<Hand>,
[INFO] [stdout] 26 | |         balance: i32,
[INFO] [stdout] 27 | |         standing: i32
[INFO] [stdout] 28 | |     }
[INFO] [stdout]    | |_____- not a free function, impl method or static
[INFO] [stdout]    |
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: attribute should be applied to a free function, impl method or static
[INFO] [stdout]   --> lib/player.rs:30:2
[INFO] [stdout]    |
[INFO] [stdout] 30 |       #[no_mangle]
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout] 31 |       #[derive(Clone)]
[INFO] [stdout] 32 | /     pub struct Hand {
[INFO] [stdout] 33 | |         cards: Vec<Card>,
[INFO] [stdout] 34 | |         can_surrender: bool,
[INFO] [stdout] 35 | |         surrendered: bool,
[INFO] [stdout] 36 | |         is_set: bool,
[INFO] [stdout] 37 | |         wager: i32
[INFO] [stdout] 38 | |     }
[INFO] [stdout]    | |_____- not a free function, impl method or static
[INFO] [stdout]    |
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `is_dealer` is never read
[INFO] [stdout]   --> lib/player.rs:24:3
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub struct Player {
[INFO] [stdout]    |                ------ field in this struct
[INFO] [stdout] 23 |         name: String,
[INFO] [stdout] 24 |         is_dealer: bool,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Player` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> lib/player.rs:56:20
[INFO] [stdout]    |
[INFO] [stdout] 56 |         pub fn hand_iter(&self) -> Iter<Hand> {
[INFO] [stdout]    |                          ^^^^^     ---------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                          |
[INFO] [stdout]    |                          this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 56 |         pub fn hand_iter(&self) -> Iter<'_, Hand> {
[INFO] [stdout]    |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> lib/player.rs:255:20
[INFO] [stdout]     |
[INFO] [stdout] 255 |         pub fn card_iter(&self) -> Iter<Card> {
[INFO] [stdout]     |                          ^^^^^     ---------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 255 |         pub fn card_iter(&self) -> Iter<'_, Card> {
[INFO] [stdout]     |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: attribute should be applied to a free function, impl method or static
[INFO] [stdout]   --> lib/card.rs:37:2
[INFO] [stdout]    |
[INFO] [stdout] 37 |       #[no_mangle]
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout] 38 |       #[repr(C)]
[INFO] [stdout] 39 | /     pub struct Deck {
[INFO] [stdout] 40 | |         cards: Vec<Card>,
[INFO] [stdout] 41 | |         deck_count: usize,
[INFO] [stdout] 42 | |         card_index: usize
[INFO] [stdout] 43 | |     }
[INFO] [stdout]    | |_____- not a free function, impl method or static
[INFO] [stdout]    |
[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: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: attribute should be applied to a free function, impl method or static
[INFO] [stdout]   --> lib/player.rs:20:2
[INFO] [stdout]    |
[INFO] [stdout] 20 |       #[no_mangle]
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout] 21 |       #[derive(Clone)]
[INFO] [stdout] 22 | /     pub struct Player {
[INFO] [stdout] 23 | |         name: String,
[INFO] [stdout] 24 | |         is_dealer: bool,
[INFO] [stdout] 25 | |         hands: Vec<Hand>,
[INFO] [stdout] 26 | |         balance: i32,
[INFO] [stdout] 27 | |         standing: i32
[INFO] [stdout] 28 | |     }
[INFO] [stdout]    | |_____- not a free function, impl method or static
[INFO] [stdout]    |
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: attribute should be applied to a free function, impl method or static
[INFO] [stdout]   --> lib/player.rs:30:2
[INFO] [stdout]    |
[INFO] [stdout] 30 |       #[no_mangle]
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout] 31 |       #[derive(Clone)]
[INFO] [stdout] 32 | /     pub struct Hand {
[INFO] [stdout] 33 | |         cards: Vec<Card>,
[INFO] [stdout] 34 | |         can_surrender: bool,
[INFO] [stdout] 35 | |         surrendered: bool,
[INFO] [stdout] 36 | |         is_set: bool,
[INFO] [stdout] 37 | |         wager: i32
[INFO] [stdout] 38 | |     }
[INFO] [stdout]    | |_____- not a free function, impl method or static
[INFO] [stdout]    |
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `is_dealer` is never read
[INFO] [stdout]   --> lib/player.rs:24:3
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub struct Player {
[INFO] [stdout]    |                ------ field in this struct
[INFO] [stdout] 23 |         name: String,
[INFO] [stdout] 24 |         is_dealer: bool,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Player` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> lib/player.rs:56:20
[INFO] [stdout]    |
[INFO] [stdout] 56 |         pub fn hand_iter(&self) -> Iter<Hand> {
[INFO] [stdout]    |                          ^^^^^     ---------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                          |
[INFO] [stdout]    |                          this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 56 |         pub fn hand_iter(&self) -> Iter<'_, Hand> {
[INFO] [stdout]    |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> lib/player.rs:255:20
[INFO] [stdout]     |
[INFO] [stdout] 255 |         pub fn card_iter(&self) -> Iter<Card> {
[INFO] [stdout]     |                          ^^^^^     ---------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 255 |         pub fn card_iter(&self) -> Iter<'_, Card> {
[INFO] [stdout]     |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.54s
[INFO] running `Command { std: "docker" "inspect" "27e68382084cd84dea863837ef1d8c908a46d1ba8959e3b6dbdd0d6628b190a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27e68382084cd84dea863837ef1d8c908a46d1ba8959e3b6dbdd0d6628b190a7", kill_on_drop: false }`
[INFO] [stdout] 27e68382084cd84dea863837ef1d8c908a46d1ba8959e3b6dbdd0d6628b190a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Copt-level=3" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8012099a5faf0b4f3addb5643aab1f0996b829f98d02f2e2be0f53c471fce080
[INFO] running `Command { std: "docker" "start" "-a" "8012099a5faf0b4f3addb5643aab1f0996b829f98d02f2e2be0f53c471fce080", kill_on_drop: false }`
[INFO] [stderr] warning: attribute should be applied to a free function, impl method or static
[INFO] [stderr]   --> lib/card.rs:37:2
[INFO] [stderr]    |
[INFO] [stderr] 37 |       #[no_mangle]
[INFO] [stderr]    |       ^^^^^^^^^^^^
[INFO] [stderr] 38 |       #[repr(C)]
[INFO] [stderr] 39 | /     pub struct Deck {
[INFO] [stderr] 40 | |         cards: Vec<Card>,
[INFO] [stderr] 41 | |         deck_count: usize,
[INFO] [stderr] 42 | |         card_index: usize
[INFO] [stderr] 43 | |     }
[INFO] [stderr]    | |_____- not a free function, impl method or static
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: attribute should be applied to a free function, impl method or static
[INFO] [stderr]   --> lib/player.rs:20:2
[INFO] [stderr]    |
[INFO] [stderr] 20 |       #[no_mangle]
[INFO] [stderr]    |       ^^^^^^^^^^^^
[INFO] [stderr] 21 |       #[derive(Clone)]
[INFO] [stderr] 22 | /     pub struct Player {
[INFO] [stderr] 23 | |         name: String,
[INFO] [stderr] 24 | |         is_dealer: bool,
[INFO] [stderr] 25 | |         hands: Vec<Hand>,
[INFO] [stderr] 26 | |         balance: i32,
[INFO] [stderr] 27 | |         standing: i32
[INFO] [stderr] 28 | |     }
[INFO] [stderr]    | |_____- not a free function, impl method or static
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr] 
[INFO] [stderr] warning: attribute should be applied to a free function, impl method or static
[INFO] [stderr]   --> lib/player.rs:30:2
[INFO] [stderr]    |
[INFO] [stderr] 30 |       #[no_mangle]
[INFO] [stderr]    |       ^^^^^^^^^^^^
[INFO] [stderr] 31 |       #[derive(Clone)]
[INFO] [stderr] 32 | /     pub struct Hand {
[INFO] [stderr] 33 | |         cards: Vec<Card>,
[INFO] [stderr] 34 | |         can_surrender: bool,
[INFO] [stderr] 35 | |         surrendered: bool,
[INFO] [stderr] 36 | |         is_set: bool,
[INFO] [stderr] 37 | |         wager: i32
[INFO] [stderr] 38 | |     }
[INFO] [stderr]    | |_____- not a free function, impl method or static
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr] 
[INFO] [stderr] warning: field `is_dealer` is never read
[INFO] [stderr]   --> lib/player.rs:24:3
[INFO] [stderr]    |
[INFO] [stderr] 22 |     pub struct Player {
[INFO] [stderr]    |                ------ field in this struct
[INFO] [stderr] 23 |         name: String,
[INFO] [stderr] 24 |         is_dealer: bool,
[INFO] [stderr]    |         ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Player` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stderr]   --> lib/player.rs:56:20
[INFO] [stderr]    |
[INFO] [stderr] 56 |         pub fn hand_iter(&self) -> Iter<Hand> {
[INFO] [stderr]    |                          ^^^^^     ---------- the lifetime gets resolved as `'_`
[INFO] [stderr]    |                          |
[INFO] [stderr]    |                          this lifetime flows to the output
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stderr]    |
[INFO] [stderr] 56 |         pub fn hand_iter(&self) -> Iter<'_, Hand> {
[INFO] [stderr]    |                                         +++
[INFO] [stderr] 
[INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stderr]    --> lib/player.rs:255:20
[INFO] [stderr]     |
[INFO] [stderr] 255 |         pub fn card_iter(&self) -> Iter<Card> {
[INFO] [stderr]     |                          ^^^^^     ---------- the lifetime gets resolved as `'_`
[INFO] [stderr]     |                          |
[INFO] [stderr]     |                          this lifetime flows to the output
[INFO] [stderr]     |
[INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stderr]     |
[INFO] [stderr] 255 |         pub fn card_iter(&self) -> Iter<'_, Card> {
[INFO] [stderr]     |                                         +++
[INFO] [stderr] 
[INFO] [stderr] warning: `blackjack` (lib) generated 6 warnings
[INFO] [stderr] warning: `blackjack` (lib test) generated 6 warnings (6 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests lib/lib.rs (/opt/rustwide/target/debug/deps/blackjack-94a3dbf4092f4034)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/blackjack-78b6ae0ca11e7a37)
[INFO] [stderr]      Running tests/tests.rs (/opt/rustwide/target/debug/deps/tests-d2bf107342fb1cdb)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::card_to_int_works ... ok
[INFO] [stdout] test tests::create_deck ... ok
[INFO] [stdout] test tests::create_new_deck ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- tests::create_new_deck stdout ----
[INFO] [stdout] 00010001
[INFO] [stdout] 
[INFO] [stdout] thread 'tests::create_new_deck' panicked at tests/tests.rs:48:38:
[INFO] [stdout] assertion `left == right` failed
[INFO] [stdout]   left: 1
[INFO] [stdout]  right: 2
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5c9e806a37c2 - std::backtrace_rs::backtrace::libunwind::trace::hd39b1f53d3cf9745
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5c9e806a37c2 - std::backtrace_rs::backtrace::trace_unsynchronized::he91d9a75d4e3972b
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5c9e806a37c2 - std::sys::backtrace::_print_fmt::hca46938f8c6e22cf
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x5c9e806a37c2 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::ha499add612cccf8e
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x5c9e806c8883 - core::fmt::rt::Argument::fmt::hd21145b75a833b7a
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x5c9e806c8883 - core::fmt::write::hb10c956f5235c8a4
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/fmt/mod.rs:1465:25
[INFO] [stdout]    6:     0x5c9e806a09a3 - std::io::default_write_fmt::hdb7615052be2ba4d
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x5c9e806a09a3 - std::io::Write::write_fmt::he1bcd251ec6e4153
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x5c9e806a3612 - std::sys::backtrace::BacktraceLock::print::hb47c770ef659fd10
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x5c9e806a4d2c - std::panicking::default_hook::{{closure}}::hdda8afb9d457a22c
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:300:27
[INFO] [stdout]   10:     0x5c9e806a4b82 - std::panicking::default_hook::h7c46b44874fe5c9a
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:324:9
[INFO] [stdout]   11:     0x5c9e8066c694 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h178a5fcedee41e2f
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   12:     0x5c9e8066c694 - test::test_main_with_exit_callback::{{closure}}::h951a41e0149d6d5d
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x5c9e806a570b - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h13602080f5b63276
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   14:     0x5c9e806a570b - std::panicking::rust_panic_with_hook::ha6cb99ed099eb1c5
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:841:13
[INFO] [stdout]   15:     0x5c9e806a54da - std::panicking::begin_panic_handler::{{closure}}::he11808bc797ee921
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:706:13
[INFO] [stdout]   16:     0x5c9e806a3cb9 - std::sys::backtrace::__rust_end_short_backtrace::h9418807cb7346258
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/sys/backtrace.rs:168:18
[INFO] [stdout]   17:     0x5c9e806a516d - __rustc[18fb429eef004894]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:697:5
[INFO] [stdout]   18:     0x5c9e806c73d0 - core::panicking::panic_fmt::hd890aeb12c3a3fc3
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/panicking.rs:75:14
[INFO] [stdout]   19:     0x5c9e806c7667 - core::panicking::assert_failed_inner::h02e1528dd7bc6647
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/panicking.rs:448:17
[INFO] [stdout]   20:     0x5c9e80686366 - core::panicking::assert_failed::h8d7cc7a1e1cfc347
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/panicking.rs:403:5
[INFO] [stdout]   21:     0x5c9e8063306c - tests::tests::create_new_deck::hce23ffa670504e42
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/tests.rs:48:38
[INFO] [stdout]   22:     0x5c9e806316f6 - tests::tests::create_new_deck::{{closure}}::h7dbe16ae3f98b3a5
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/tests.rs:43:29
[INFO] [stdout]   23:     0x5c9e806316f6 - core::ops::function::FnOnce::call_once::h6f4a5bb47688eeba
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x5c9e80671e1b - core::ops::function::FnOnce::call_once::h2869fb5b0a2b0bdc
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x5c9e80671e1b - test::__rust_begin_short_backtrace::h7dd7142bd62fa711
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/test/src/lib.rs:648:18
[INFO] [stdout]   26:     0x5c9e8067100e - test::run_test_in_process::{{closure}}::h43a753f038d36b3f
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/test/src/lib.rs:671:74
[INFO] [stdout]   27:     0x5c9e8067100e - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h0ca95dd3e12d1e16
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   28:     0x5c9e8067100e - std::panicking::catch_unwind::do_call::he308587d70ac34ba
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:589:40
[INFO] [stdout]   29:     0x5c9e8067100e - std::panicking::catch_unwind::h30dcba31973e8fb0
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:552:19
[INFO] [stdout]   30:     0x5c9e8067100e - std::panic::catch_unwind::hfb68364e5621fbee
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x5c9e8067100e - test::run_test_in_process::hcdcc2977903b998a
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/test/src/lib.rs:671:27
[INFO] [stdout]   32:     0x5c9e8067100e - test::run_test::{{closure}}::h544a6550958c5d14
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/test/src/lib.rs:592:43
[INFO] [stdout]   33:     0x5c9e80634b84 - test::run_test::{{closure}}::hb172e48ebe2b92c7
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/test/src/lib.rs:622:41
[INFO] [stdout]   34:     0x5c9e80634b84 - std::sys::backtrace::__rust_begin_short_backtrace::h7e79d8706638bea0
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/sys/backtrace.rs:152:18
[INFO] [stdout]   35:     0x5c9e8063855a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hc4a275f1e71b8ab0
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/thread/mod.rs:559:17
[INFO] [stdout]   36:     0x5c9e8063855a - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h01ed0d242df78cfd
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   37:     0x5c9e8063855a - std::panicking::catch_unwind::do_call::h052f373fb905fee0
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:589:40
[INFO] [stdout]   38:     0x5c9e8063855a - std::panicking::catch_unwind::hb425d20c8ffb09c8
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:552:19
[INFO] [stdout]   39:     0x5c9e8063855a - std::panic::catch_unwind::ha0d5dfbf18fdeda5
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x5c9e8063855a - std::thread::Builder::spawn_unchecked_::{{closure}}::hbe79182bd37949c7
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/thread/mod.rs:557:30
[INFO] [stdout]   41:     0x5c9e8063855a - core::ops::function::FnOnce::call_once{{vtable.shim}}::hc096c4a06972fde5
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x5c9e806a8667 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h47377e27fb938a26
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/alloc/src/boxed.rs:1971:9
[INFO] [stdout]   43:     0x5c9e806a8667 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h72f1fe5d095abf57
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/alloc/src/boxed.rs:1971:9
[INFO] [stdout]   44:     0x5c9e806a8667 - std::sys::pal::unix::thread::Thread::new::thread_start::h0a4d8e1b9c0d38cf
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/sys/pal/unix/thread.rs:97:17
[INFO] [stdout]   45:     0x7d6f328baaa4 - <unknown>
[INFO] [stdout]   46:     0x7d6f32947a34 - clone
[INFO] [stdout]   47:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     tests::create_new_deck
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 2 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--test tests`
[INFO] running `Command { std: "docker" "inspect" "8012099a5faf0b4f3addb5643aab1f0996b829f98d02f2e2be0f53c471fce080", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8012099a5faf0b4f3addb5643aab1f0996b829f98d02f2e2be0f53c471fce080", kill_on_drop: false }`
[INFO] [stdout] 8012099a5faf0b4f3addb5643aab1f0996b829f98d02f2e2be0f53c471fce080
