[INFO] cloning repository https://github.com/sirkibsirkib/cardgame
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sirkibsirkib/cardgame" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsirkibsirkib%2Fcardgame", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsirkibsirkib%2Fcardgame'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 09ad26188796f859f7e916f83c5d1cfb02eb6f3c
[INFO] testing sirkibsirkib/cardgame against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsirkibsirkib%2Fcardgame" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sirkibsirkib/cardgame on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sirkibsirkib/cardgame
[INFO] finished tweaking git repo https://github.com/sirkibsirkib/cardgame
[INFO] tweaked toml for git repo https://github.com/sirkibsirkib/cardgame written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/sirkibsirkib/cardgame already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+beta-2021-01-01" "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] 0566f2c545e37d35fe307ff708426bce16e083f019f61d74c02337030f98b4ca
[INFO] running `Command { std: "docker" "start" "-a" "0566f2c545e37d35fe307ff708426bce16e083f019f61d74c02337030f98b4ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0566f2c545e37d35fe307ff708426bce16e083f019f61d74c02337030f98b4ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0566f2c545e37d35fe307ff708426bce16e083f019f61d74c02337030f98b4ca", kill_on_drop: false }`
[INFO] [stdout] 0566f2c545e37d35fe307ff708426bce16e083f019f61d74c02337030f98b4ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5d239a0c095ac12514bfec85e49ad74b988f476b75bf6eff1542ce8b8727fc62
[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" "5d239a0c095ac12514bfec85e49ad74b988f476b75bf6eff1542ce8b8727fc62", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling cardgame v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/card.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `thread_rng`
[INFO] [stdout]  --> src/card.rs:2:17
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rand::{Rng, thread_rng};
[INFO] [stdout]   |                 ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Card`
[INFO] [stdout]  --> src/stack.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | use card::{Card, CardFlyweight};
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `::card::Card`
[INFO] [stdout]  --> src/combat.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use ::card::Card;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `card::Database`
[INFO] [stdout]  --> src/screen.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use card::Database;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/main.rs:48:6
[INFO] [stdout]    |
[INFO] [stdout] 48 |     for i in 0..5 {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/main.rs:117:5
[INFO] [stdout]     |
[INFO] [stdout] 117 |                 x => { worked = false; },
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p1_stacks`
[INFO] [stdout]  --> src/combat.rs:5:6
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let mut p1_stacks: Vec<Stack> = vec![];
[INFO] [stdout]   |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_p1_stacks`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p2_stacks`
[INFO] [stdout]  --> src/combat.rs:6:6
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let mut p2_stacks: Vec<Stack> = vec![];
[INFO] [stdout]   |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_p2_stacks`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `j`
[INFO] [stdout]   --> src/screen.rs:28:7
[INFO] [stdout]    |
[INFO] [stdout] 28 |         for j in 0..HEIGHT {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_j`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/screen.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 |             for i in 0..WIDTH {
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/combat.rs:5:6
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let mut p1_stacks: Vec<Stack> = vec![];
[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: variable does not need to be mutable
[INFO] [stdout]  --> src/combat.rs:6:6
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let mut p2_stacks: Vec<Stack> = vec![];
[INFO] [stdout]   |         ----^^^^^^^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `visible`
[INFO] [stdout]   --> src/card.rs:84:9
[INFO] [stdout]    |
[INFO] [stdout] 84 |     pub fn visible(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `CardType`
[INFO] [stdout]  --> src/card_type.rs:9:10
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub enum CardType {
[INFO] [stdout]   |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `combat`
[INFO] [stdout]  --> src/combat.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn combat() {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `coord`
[INFO] [stdout]   --> src/screen.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn coord(index: usize) -> (usize, usize) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `abs` should have an upper case name
[INFO] [stdout]   --> src/main.rs:17:7
[INFO] [stdout]    |
[INFO] [stdout] 17 | const abs: [&'static str; 4] = [
[INFO] [stdout]    |       ^^^ help: convert the identifier to upper case: `ABS`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:69:3
[INFO] [stdout]    |
[INFO] [stdout] 69 |         stdin().read_line(&mut s);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.21s
[INFO] running `Command { std: "docker" "inspect" "5d239a0c095ac12514bfec85e49ad74b988f476b75bf6eff1542ce8b8727fc62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d239a0c095ac12514bfec85e49ad74b988f476b75bf6eff1542ce8b8727fc62", kill_on_drop: false }`
[INFO] [stdout] 5d239a0c095ac12514bfec85e49ad74b988f476b75bf6eff1542ce8b8727fc62
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 98e1592bebd7343f44e84ee3034f03b3846a8a22ac4521e69417b6702ac24ed9
[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" "98e1592bebd7343f44e84ee3034f03b3846a8a22ac4521e69417b6702ac24ed9", kill_on_drop: false }`
[INFO] [stderr]    Compiling cardgame v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/card.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `thread_rng`
[INFO] [stdout]  --> src/card.rs:2:17
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rand::{Rng, thread_rng};
[INFO] [stdout]   |                 ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Card`
[INFO] [stdout]  --> src/stack.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | use card::{Card, CardFlyweight};
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `::card::Card`
[INFO] [stdout]  --> src/combat.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use ::card::Card;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `card::Database`
[INFO] [stdout]  --> src/screen.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use card::Database;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/main.rs:48:6
[INFO] [stdout]    |
[INFO] [stdout] 48 |     for i in 0..5 {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/main.rs:117:5
[INFO] [stdout]     |
[INFO] [stdout] 117 |                 x => { worked = false; },
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p1_stacks`
[INFO] [stdout]  --> src/combat.rs:5:6
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let mut p1_stacks: Vec<Stack> = vec![];
[INFO] [stdout]   |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_p1_stacks`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p2_stacks`
[INFO] [stdout]  --> src/combat.rs:6:6
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let mut p2_stacks: Vec<Stack> = vec![];
[INFO] [stdout]   |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_p2_stacks`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `j`
[INFO] [stdout]   --> src/screen.rs:28:7
[INFO] [stdout]    |
[INFO] [stdout] 28 |         for j in 0..HEIGHT {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_j`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/screen.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 |             for i in 0..WIDTH {
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/combat.rs:5:6
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let mut p1_stacks: Vec<Stack> = vec![];
[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: variable does not need to be mutable
[INFO] [stdout]  --> src/combat.rs:6:6
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let mut p2_stacks: Vec<Stack> = vec![];
[INFO] [stdout]   |         ----^^^^^^^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `visible`
[INFO] [stdout]   --> src/card.rs:84:9
[INFO] [stdout]    |
[INFO] [stdout] 84 |     pub fn visible(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `CardType`
[INFO] [stdout]  --> src/card_type.rs:9:10
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub enum CardType {
[INFO] [stdout]   |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `combat`
[INFO] [stdout]  --> src/combat.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn combat() {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `coord`
[INFO] [stdout]   --> src/screen.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn coord(index: usize) -> (usize, usize) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `abs` should have an upper case name
[INFO] [stdout]   --> src/main.rs:17:7
[INFO] [stdout]    |
[INFO] [stdout] 17 | const abs: [&'static str; 4] = [
[INFO] [stdout]    |       ^^^ help: convert the identifier to upper case: `ABS`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:69:3
[INFO] [stdout]    |
[INFO] [stdout] 69 |         stdin().read_line(&mut s);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `Command { std: "docker" "inspect" "98e1592bebd7343f44e84ee3034f03b3846a8a22ac4521e69417b6702ac24ed9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98e1592bebd7343f44e84ee3034f03b3846a8a22ac4521e69417b6702ac24ed9", kill_on_drop: false }`
[INFO] [stdout] 98e1592bebd7343f44e84ee3034f03b3846a8a22ac4521e69417b6702ac24ed9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", 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] 4c78139f49386299ee09f3cc566a78bea15a80d14e7471959532e7e1e185c308
[INFO] running `Command { std: "docker" "start" "-a" "4c78139f49386299ee09f3cc566a78bea15a80d14e7471959532e7e1e185c308", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused import: `std::rc::Rc`
[INFO] [stdout] running 0 tests
[INFO] [stderr]  --> src/card.rs:1:5
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 1 | use std::rc::Rc;
[INFO] [stdout] 
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `thread_rng`
[INFO] [stderr]  --> src/card.rs:2:17
[INFO] [stderr]   |
[INFO] [stderr] 2 | use rand::{Rng, thread_rng};
[INFO] [stderr]   |                 ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Card`
[INFO] [stderr]  --> src/stack.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | use card::{Card, CardFlyweight};
[INFO] [stderr]   |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `::card::Card`
[INFO] [stderr]  --> src/combat.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use ::card::Card;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `card::Database`
[INFO] [stderr]  --> src/screen.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use card::Database;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/main.rs:48:6
[INFO] [stderr]    |
[INFO] [stderr] 48 |     for i in 0..5 {
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/main.rs:117:5
[INFO] [stderr]     |
[INFO] [stderr] 117 |                 x => { worked = false; },
[INFO] [stderr]     |                 ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `p1_stacks`
[INFO] [stderr]  --> src/combat.rs:5:6
[INFO] [stderr]   |
[INFO] [stderr] 5 |     let mut p1_stacks: Vec<Stack> = vec![];
[INFO] [stderr]   |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_p1_stacks`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `p2_stacks`
[INFO] [stderr]  --> src/combat.rs:6:6
[INFO] [stderr]   |
[INFO] [stderr] 6 |     let mut p2_stacks: Vec<Stack> = vec![];
[INFO] [stderr]   |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_p2_stacks`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `j`
[INFO] [stderr]   --> src/screen.rs:28:7
[INFO] [stderr]    |
[INFO] [stderr] 28 |         for j in 0..HEIGHT {
[INFO] [stderr]    |             ^ help: if this is intentional, prefix it with an underscore: `_j`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/screen.rs:29:8
[INFO] [stderr]    |
[INFO] [stderr] 29 |             for i in 0..WIDTH {
[INFO] [stderr]    |                 ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/combat.rs:5:6
[INFO] [stderr]   |
[INFO] [stderr] 5 |     let mut p1_stacks: Vec<Stack> = vec![];
[INFO] [stderr]   |         ----^^^^^^^^^
[INFO] [stderr]   |         |
[INFO] [stderr]   |         help: remove this `mut`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/combat.rs:6:6
[INFO] [stderr]   |
[INFO] [stderr] 6 |     let mut p2_stacks: Vec<Stack> = vec![];
[INFO] [stderr]   |         ----^^^^^^^^^
[INFO] [stderr]   |         |
[INFO] [stderr]   |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `visible`
[INFO] [stderr]   --> src/card.rs:84:9
[INFO] [stderr]    |
[INFO] [stderr] 84 |     pub fn visible(&self) -> bool {
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `CardType`
[INFO] [stderr]  --> src/card_type.rs:9:10
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub enum CardType {
[INFO] [stderr]   |          ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `combat`
[INFO] [stderr]  --> src/combat.rs:4:8
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn combat() {
[INFO] [stderr]   |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `coord`
[INFO] [stderr]   --> src/screen.rs:43:9
[INFO] [stderr]    |
[INFO] [stderr] 43 |     pub fn coord(index: usize) -> (usize, usize) {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `abs` should have an upper case name
[INFO] [stderr]   --> src/main.rs:17:7
[INFO] [stderr]    |
[INFO] [stderr] 17 | const abs: [&'static str; 4] = [
[INFO] [stderr]    |       ^^^ help: convert the identifier to upper case: `ABS`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:69:3
[INFO] [stderr]    |
[INFO] [stderr] 69 |         stdin().read_line(&mut s);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 19 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/cardgame-ce477117889b7f74
[INFO] running `Command { std: "docker" "inspect" "4c78139f49386299ee09f3cc566a78bea15a80d14e7471959532e7e1e185c308", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c78139f49386299ee09f3cc566a78bea15a80d14e7471959532e7e1e185c308", kill_on_drop: false }`
[INFO] [stdout] 4c78139f49386299ee09f3cc566a78bea15a80d14e7471959532e7e1e185c308