[INFO] cloning repository https://github.com/dlinman/rgame
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dlinman/rgame" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdlinman%2Frgame"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdlinman%2Frgame'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d89d04a4848bf95b20b09b41bd39e2daacb70c5c
[INFO] checking dlinman/rgame against master#74e80468347471779be6060d8d7d6d04e98e467f for pr-72788
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdlinman%2Frgame" "/workspace/builds/worker-3/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dlinman/rgame on toolchain 74e80468347471779be6060d8d7d6d04e98e467f
[INFO] running `"/workspace/cargo-home/bin/cargo" "+74e80468347471779be6060d8d7d6d04e98e467f" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/dlinman/rgame
[INFO] finished tweaking git repo https://github.com/dlinman/rgame
[INFO] tweaked toml for git repo https://github.com/dlinman/rgame written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/dlinman/rgame already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+74e80468347471779be6060d8d7d6d04e98e467f" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+74e80468347471779be6060d8d7d6d04e98e467f" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] aa2780ad2e70c04afb3daeb2dd7d4db7634f72db1037254ed9f231e4cc1a13ab
[INFO] running `"docker" "start" "-a" "aa2780ad2e70c04afb3daeb2dd7d4db7634f72db1037254ed9f231e4cc1a13ab"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking rgame v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `BufRead`
[INFO] [stderr]  --> src/single_game.rs:5:15
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::io::{BufRead};
[INFO] [stderr]   |               ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `human_player`, `pick_highest_action_agent`, `self_minimax_agent`, `strict_random_agent`
[INFO] [stderr]   --> src/main.rs:10:14
[INFO] [stderr]    |
[INFO] [stderr] 10 | use agents::{strict_random_agent, pick_highest_action_agent, self_minimax_agent, alpha_beta_agent, human_player};
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^                    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `BufRead`
[INFO] [stderr]  --> src/single_game.rs:5:15
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::io::{BufRead};
[INFO] [stderr]   |               ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `human_player`, `pick_highest_action_agent`, `self_minimax_agent`, `strict_random_agent`
[INFO] [stderr]   --> src/main.rs:10:14
[INFO] [stderr]    |
[INFO] [stderr] 10 | use agents::{strict_random_agent, pick_highest_action_agent, self_minimax_agent, alpha_beta_agent, human_player};
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^                    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_agent`
[INFO] [stderr]  --> src/agents/strict_random_agent.rs:6:8
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn get_agent() -> impl Agent {
[INFO] [stderr]   |        ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_agent`
[INFO] [stderr]  --> src/agents/pick_highest_action_agent.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn get_agent( heuristic_description : HeuristicDescription, player : u32 ) -> impl Agent {
[INFO] [stderr]   |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_agent`
[INFO] [stderr]  --> src/agents/self_minimax_agent.rs:7:8
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub fn get_agent( heuristic_description : HeuristicDescription, player : u32, depth : u32 ) -> impl Agent {
[INFO] [stderr]   |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_agent`
[INFO] [stderr]  --> src/agents/human_player.rs:7:8
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub fn get_agent() -> impl Agent {
[INFO] [stderr]   |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `contest`
[INFO] [stderr]  --> src/two_player_contest.rs:6:8
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn contest<G : Game, P1 : Agent, P2 : Agent>( game : &G, player_1 : &mut P1, player_2 : &mut P2, game_count : u32 ) {
[INFO] [stderr]   |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Misc`
[INFO] [stderr]   --> src/games/game_form.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     Misc(String),
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_game`
[INFO] [stderr]  --> src/games/tic_tac_toe.rs:4:8
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn get_game() -> impl Game {
[INFO] [stderr]   |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 9 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_agent`
[INFO] [stderr]  --> src/agents/strict_random_agent.rs:6:8
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn get_agent() -> impl Agent {
[INFO] [stderr]   |        ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_agent`
[INFO] [stderr]  --> src/agents/pick_highest_action_agent.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn get_agent( heuristic_description : HeuristicDescription, player : u32 ) -> impl Agent {
[INFO] [stderr]   |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_agent`
[INFO] [stderr]  --> src/agents/self_minimax_agent.rs:7:8
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub fn get_agent( heuristic_description : HeuristicDescription, player : u32, depth : u32 ) -> impl Agent {
[INFO] [stderr]   |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_agent`
[INFO] [stderr]  --> src/agents/human_player.rs:7:8
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub fn get_agent() -> impl Agent {
[INFO] [stderr]   |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `contest`
[INFO] [stderr]  --> src/two_player_contest.rs:6:8
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn contest<G : Game, P1 : Agent, P2 : Agent>( game : &G, player_1 : &mut P1, player_2 : &mut P2, game_count : u32 ) {
[INFO] [stderr]   |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Misc`
[INFO] [stderr]   --> src/games/game_form.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     Misc(String),
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_game`
[INFO] [stderr]  --> src/games/tic_tac_toe.rs:4:8
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn get_game() -> impl Game {
[INFO] [stderr]   |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 9 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.17s
[INFO] running `"docker" "inspect" "aa2780ad2e70c04afb3daeb2dd7d4db7634f72db1037254ed9f231e4cc1a13ab"`
[INFO] running `"docker" "rm" "-f" "aa2780ad2e70c04afb3daeb2dd7d4db7634f72db1037254ed9f231e4cc1a13ab"`
[INFO] [stdout] aa2780ad2e70c04afb3daeb2dd7d4db7634f72db1037254ed9f231e4cc1a13ab