[INFO] cloning repository https://github.com/ProgrammingIncluded/Unstable-Unicorns-RS
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ProgrammingIncluded/Unstable-Unicorns-RS" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FProgrammingIncluded%2FUnstable-Unicorns-RS", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FProgrammingIncluded%2FUnstable-Unicorns-RS'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4384d2c4840621c145690bddab08131afa1209c5
[INFO] testing ProgrammingIncluded/Unstable-Unicorns-RS against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FProgrammingIncluded%2FUnstable-Unicorns-RS" "/workspace/builds/worker-100/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-100/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ProgrammingIncluded/Unstable-Unicorns-RS on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ProgrammingIncluded/Unstable-Unicorns-RS
[INFO] finished tweaking git repo https://github.com/ProgrammingIncluded/Unstable-Unicorns-RS
[INFO] tweaked toml for git repo https://github.com/ProgrammingIncluded/Unstable-Unicorns-RS written to /workspace/builds/worker-100/source/Cargo.toml
[INFO] crate git repo https://github.com/ProgrammingIncluded/Unstable-Unicorns-RS already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 625cc453050c30380e3cbd110e9ef8c054cf7489ef950f02a259dde04f5773a5
[INFO] running `Command { std: "docker" "start" "-a" "625cc453050c30380e3cbd110e9ef8c054cf7489ef950f02a259dde04f5773a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "625cc453050c30380e3cbd110e9ef8c054cf7489ef950f02a259dde04f5773a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "625cc453050c30380e3cbd110e9ef8c054cf7489ef950f02a259dde04f5773a5", kill_on_drop: false }`
[INFO] [stdout] 625cc453050c30380e3cbd110e9ef8c054cf7489ef950f02a259dde04f5773a5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9362b59697adfc6b909b2868c687acaae822d95bd7eedb06261f718b37642f5d
[INFO] running `Command { std: "docker" "start" "-a" "9362b59697adfc6b909b2868c687acaae822d95bd7eedb06261f718b37642f5d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling dyn-clone v1.0.4
[INFO] [stderr]    Compiling unstable_unicorns v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `TypeId`
[INFO] [stdout]  --> src/cards.rs:2:21
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::any::{Any, TypeId};
[INFO] [stdout]   |                     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/cards.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Actions`, `Board`
[INFO] [stdout]   --> src/cards.rs:11:20
[INFO] [stdout]    |
[INFO] [stdout] 11 | use crate::state::{Actions, Action, ActionType, Board, History};
[INFO] [stdout]    |                    ^^^^^^^                      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Any`, `TypeId`
[INFO] [stdout]  --> src/state.rs:2:16
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::any::{Any, TypeId};
[INFO] [stdout]   |                ^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt`
[INFO] [stdout]  --> src/state.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::fmt;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> src/state.rs:138:9
[INFO] [stdout]     |
[INFO] [stdout] 138 |     use super::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> src/game.rs:191:9
[INFO] [stdout]     |
[INFO] [stdout] 191 |     use super::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::cards::*`
[INFO] [stdout]    --> src/game.rs:192:9
[INFO] [stdout]     |
[INFO] [stdout] 192 |     use crate::cards::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `player`
[INFO] [stdout]   --> src/cards.rs:39:30
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn play(self: Box<Self>, player: usize, history: &History) -> Option<Action> { None }
[INFO] [stdout]    |                              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_player`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `history`
[INFO] [stdout]   --> src/cards.rs:39:45
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn play(self: Box<Self>, player: usize, history: &History) -> Option<Action> { None }
[INFO] [stdout]    |                                             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_history`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `player`
[INFO] [stdout]   --> src/cards.rs:40:31
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn react(self: Box<Self>, player: usize, history: &History) -> Option<Action> { None }
[INFO] [stdout]    |                               ^^^^^^ help: if this is intentional, prefix it with an underscore: `_player`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `history`
[INFO] [stdout]   --> src/cards.rs:40:46
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn react(self: Box<Self>, player: usize, history: &History) -> Option<Action> { None }
[INFO] [stdout]    |                                              ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_history`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `player`
[INFO] [stdout]   --> src/cards.rs:41:23
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn destroy(&self, player: usize, history: &History) -> Option<Action> { None }
[INFO] [stdout]    |                       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_player`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `history`
[INFO] [stdout]   --> src/cards.rs:41:38
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn destroy(&self, player: usize, history: &History) -> Option<Action> { None }
[INFO] [stdout]    |                                      ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_history`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `player`
[INFO] [stdout]   --> src/cards.rs:42:21
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn steal(&self, player: usize, history: &History) -> Option<Action> { None }
[INFO] [stdout]    |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_player`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `history`
[INFO] [stdout]   --> src/cards.rs:42:36
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn steal(&self, player: usize, history: &History) -> Option<Action> { None }
[INFO] [stdout]    |                                    ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_history`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `player`
[INFO] [stdout]    --> src/cards.rs:107:30
[INFO] [stdout]     |
[INFO] [stdout] 107 |     fn play(self: Box<Self>, player: usize, history: &History) -> Option<Action> {
[INFO] [stdout]     |                              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_player`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `history`
[INFO] [stdout]    --> src/cards.rs:107:45
[INFO] [stdout]     |
[INFO] [stdout] 107 |     fn play(self: Box<Self>, player: usize, history: &History) -> Option<Action> {
[INFO] [stdout]     |                                             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_history`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `player`
[INFO] [stdout]    --> src/cards.rs:141:31
[INFO] [stdout]     |
[INFO] [stdout] 141 |     fn react(self: Box<Self>, player: usize, history: &History) -> Option<Action> {
[INFO] [stdout]     |                               ^^^^^^ help: if this is intentional, prefix it with an underscore: `_player`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `player`
[INFO] [stdout]    --> src/cards.rs:163:31
[INFO] [stdout]     |
[INFO] [stdout] 163 |     fn react(self: Box<Self>, player: usize, history: &History) -> Option<Action> {
[INFO] [stdout]     |                               ^^^^^^ help: if this is intentional, prefix it with an underscore: `_player`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/state.rs:54:13
[INFO] [stdout]    |
[INFO] [stdout] 54 |         for i in 0..player_count {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ep`
[INFO] [stdout]   --> src/game.rs:57:13
[INFO] [stdout]    |
[INFO] [stdout] 57 |         let ep = self.effect_phase(player, history);
[INFO] [stdout]    |             ^^ help: if this is intentional, prefix it with an underscore: `_ep`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/game.rs:151:13
[INFO] [stdout]     |
[INFO] [stdout] 151 |         let mut react_node = Node::new(vec![], None, start_action.clone());
[INFO] [stdout]     |             ----^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: private type `CardType` in public interface (error E0446)
[INFO] [stdout]   --> src/cards.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn ctype(&self) -> CardType;
[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: private type `CardType` in public interface (error E0446)
[INFO] [stdout]    --> src/cards.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     fn ctype(&self) -> CardType { CardType::Null }
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: private type `CardType` in public interface (error E0446)
[INFO] [stdout]    --> src/cards.rs:117:5
[INFO] [stdout]     |
[INFO] [stdout] 117 |     fn ctype(&self) -> CardType { CardType::Instant }
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: private type `CardType` in public interface (error E0446)
[INFO] [stdout]    --> src/cards.rs:139:5
[INFO] [stdout]     |
[INFO] [stdout] 139 |     fn ctype(&self) -> CardType { CardType::Instant }
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: private type `CardType` in public interface (error E0446)
[INFO] [stdout]    --> src/cards.rs:161:5
[INFO] [stdout]     |
[INFO] [stdout] 161 |     fn ctype(&self) -> CardType { CardType::Instant }
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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: 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: `Magic`
[INFO] [stdout]   --> src/cards.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     Magic,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `CardType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/cards.rs:13:10
[INFO] [stdout]    |
[INFO] [stdout] 13 | #[derive(Debug, Clone)]
[INFO] [stdout]    |          ^^^^^  ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Downgrade`
[INFO] [stdout]   --> src/cards.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     Downgrade,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `CardType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/cards.rs:13:10
[INFO] [stdout]    |
[INFO] [stdout] 13 | #[derive(Debug, Clone)]
[INFO] [stdout]    |          ^^^^^  ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Upgrade`
[INFO] [stdout]   --> src/cards.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     Upgrade,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `CardType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/cards.rs:13:10
[INFO] [stdout]    |
[INFO] [stdout] 13 | #[derive(Debug, Clone)]
[INFO] [stdout]    |          ^^^^^  ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BasicUnicorn`
[INFO] [stdout]   --> src/cards.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     BasicUnicorn,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `CardType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/cards.rs:13:10
[INFO] [stdout]    |
[INFO] [stdout] 13 | #[derive(Debug, Clone)]
[INFO] [stdout]    |          ^^^^^  ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `MagicUnicorn`
[INFO] [stdout]   --> src/cards.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     MagicUnicorn,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `CardType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/cards.rs:13:10
[INFO] [stdout]    |
[INFO] [stdout] 13 | #[derive(Debug, Clone)]
[INFO] [stdout]    |          ^^^^^  ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BabyUnicorn`
[INFO] [stdout]   --> src/cards.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     BabyUnicorn
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `CardType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/cards.rs:13:10
[INFO] [stdout]    |
[INFO] [stdout] 13 | #[derive(Debug, Clone)]
[INFO] [stdout]    |          ^^^^^  ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_unicorn`
[INFO] [stdout]   --> src/cards.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn is_unicorn(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Actions`
[INFO] [stdout]  --> src/state.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub type Actions = Vec<Action>;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `children`
[INFO] [stdout]   --> src/game.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     children: Vec<Link<Node>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/game.rs:9:10
[INFO] [stdout]    |
[INFO] [stdout] 9  | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `parent`
[INFO] [stdout]   --> src/game.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     parent: Option<WeakLink<Node>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/game.rs:9:10
[INFO] [stdout]    |
[INFO] [stdout] 9  | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `action`
[INFO] [stdout]   --> src/game.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     action: Action,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/game.rs:9:10
[INFO] [stdout]    |
[INFO] [stdout] 9  | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/game.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn new(children: Vec<Link<Node>>,
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `root`
[INFO] [stdout]   --> src/game.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     root: Link<Node>
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `GameTree` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/game.rs:31:10
[INFO] [stdout]    |
[INFO] [stdout] 31 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/game.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn new(action: Action) -> GameTree {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Game`
[INFO] [stdout]   --> src/game.rs:49:8
[INFO] [stdout]    |
[INFO] [stdout] 49 | struct Game {}
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/game.rs:51:8
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_states`
[INFO] [stdout]   --> src/game.rs:56:8
[INFO] [stdout]    |
[INFO] [stdout] 56 |     fn get_states(&self, player: usize, history: &History) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `effect_phase`
[INFO] [stdout]   --> src/game.rs:60:8
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn effect_phase(&self, player: usize, history: &History) -> Link<Node> {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `draw_phase`
[INFO] [stdout]    --> src/game.rs:116:8
[INFO] [stdout]     |
[INFO] [stdout] 116 |     fn draw_phase(&self, player: usize, history: &History) -> Link<Node> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `react_phase`
[INFO] [stdout]    --> src/game.rs:147:8
[INFO] [stdout]     |
[INFO] [stdout] 147 |     fn react_phase(&self, player: usize, history: &History) -> Link<Node> {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `play_phase`
[INFO] [stdout]    --> src/game.rs:158:8
[INFO] [stdout]     |
[INFO] [stdout] 158 |     fn play_phase(&self, player: usize, history: &History) -> Link<Node> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `StateTest` should have a snake case name
[INFO] [stdout]    --> src/state.rs:137:5
[INFO] [stdout]     |
[INFO] [stdout] 137 | mod StateTest {
[INFO] [stdout]     |     ^^^^^^^^^ help: convert the identifier to snake case: `state_test`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `GameTest` should have a snake case name
[INFO] [stdout]    --> src/game.rs:190:5
[INFO] [stdout]     |
[INFO] [stdout] 190 | mod GameTest {
[INFO] [stdout]     |     ^^^^^^^^ help: convert the identifier to snake case: `game_test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 51 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.98s
[INFO] running `Command { std: "docker" "inspect" "9362b59697adfc6b909b2868c687acaae822d95bd7eedb06261f718b37642f5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9362b59697adfc6b909b2868c687acaae822d95bd7eedb06261f718b37642f5d", kill_on_drop: false }`
[INFO] [stdout] 9362b59697adfc6b909b2868c687acaae822d95bd7eedb06261f718b37642f5d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bae35f24a08cfee53faf8d01ef3cfa1798f838e6e88f3dd486797c71770db2f2
[INFO] running `Command { std: "docker" "start" "-a" "bae35f24a08cfee53faf8d01ef3cfa1798f838e6e88f3dd486797c71770db2f2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "bae35f24a08cfee53faf8d01ef3cfa1798f838e6e88f3dd486797c71770db2f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bae35f24a08cfee53faf8d01ef3cfa1798f838e6e88f3dd486797c71770db2f2", kill_on_drop: false }`
[INFO] [stdout] bae35f24a08cfee53faf8d01ef3cfa1798f838e6e88f3dd486797c71770db2f2