[INFO] cloning repository https://github.com/Gollum999/rust-checkers
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Gollum999/rust-checkers" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGollum999%2Frust-checkers", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGollum999%2Frust-checkers'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8d31aa12fa5d5c319e24f7c2e6a89853f031ecc4
[INFO] checking Gollum999/rust-checkers against try#b1f2594eac607c1f051534800237eeedb5590a49 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGollum999%2Frust-checkers" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Gollum999/rust-checkers
[INFO] finished tweaking git repo https://github.com/Gollum999/rust-checkers
[INFO] tweaked toml for git repo https://github.com/Gollum999/rust-checkers written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Gollum999/rust-checkers on toolchain b1f2594eac607c1f051534800237eeedb5590a49
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Gollum999/rust-checkers 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" "+b1f2594eac607c1f051534800237eeedb5590a49" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] db8931c3e8436c79273bb768c3bab5c8d8d0c024efebb2aa8bda72d4cc452c75
[INFO] running `Command { std: "docker" "start" "-a" "db8931c3e8436c79273bb768c3bab5c8d8d0c024efebb2aa8bda72d4cc452c75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db8931c3e8436c79273bb768c3bab5c8d8d0c024efebb2aa8bda72d4cc452c75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db8931c3e8436c79273bb768c3bab5c8d8d0c024efebb2aa8bda72d4cc452c75", kill_on_drop: false }`
[INFO] [stdout] db8931c3e8436c79273bb768c3bab5c8d8d0c024efebb2aa8bda72d4cc452c75
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 06738c6812ac16710f859db2ffb78da6875b14f9ddab880e65619b0df9fbc2a9
[INFO] running `Command { std: "docker" "start" "-a" "06738c6812ac16710f859db2ffb78da6875b14f9ddab880e65619b0df9fbc2a9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]    Compiling cc v1.0.47
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking unicode-width v0.1.6
[INFO] [stderr]     Checking regex-syntax v0.6.12
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking c2-chacha v0.2.3
[INFO] [stderr]     Checking termios v0.3.1
[INFO] [stderr]     Checking clicolors-control v1.0.1
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]    Compiling ncurses v5.99.0
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]     Checking console v0.9.1
[INFO] [stderr]     Checking pancurses v0.16.1
[INFO] [stderr]     Checking checkers v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Arg`
[INFO] [stdout]  --> src/args.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | use clap::{Arg, App};
[INFO] [stdout]   |            ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `A_BLINK` and `A_NORMAL`
[INFO] [stdout]   --> src/frontend/board.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     A_BLINK, A_NORMAL,
[INFO] [stdout]    |     ^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Player`
[INFO] [stdout]   --> src/frontend/curses_frontend.rs:10:22
[INFO] [stdout]    |
[INFO] [stdout] 10 | use backend::{Board, Player};
[INFO] [stdout]    |                      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Board` and `Player`
[INFO] [stdout]  --> src/frontend/menu.rs:6:15
[INFO] [stdout]   |
[INFO] [stdout] 6 | use backend::{Board, Player};
[INFO] [stdout]   |               ^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ACS_HLINE`, `ACS_VLINE`, `curs_set`, `endwin`, `init_pair`, `initscr`, `noecho`, and `start_color`
[INFO] [stdout]   --> src/frontend/menu.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     ACS_HLINE, ACS_VLINE,
[INFO] [stdout]    |     ^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 11 |     curs_set, endwin, initscr, init_pair, Input, noecho, start_color,
[INFO] [stdout]    |     ^^^^^^^^  ^^^^^^  ^^^^^^^  ^^^^^^^^^         ^^^^^^  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Arg`
[INFO] [stdout]  --> src/args.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | use clap::{Arg, App};
[INFO] [stdout]   |            ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `A_BLINK` and `A_NORMAL`
[INFO] [stdout]   --> src/frontend/board.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     A_BLINK, A_NORMAL,
[INFO] [stdout]    |     ^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Player`
[INFO] [stdout]   --> src/frontend/curses_frontend.rs:10:22
[INFO] [stdout]    |
[INFO] [stdout] 10 | use backend::{Board, Player};
[INFO] [stdout]    |                      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Board` and `Player`
[INFO] [stdout]  --> src/frontend/menu.rs:6:15
[INFO] [stdout]   |
[INFO] [stdout] 6 | use backend::{Board, Player};
[INFO] [stdout]   |               ^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ACS_HLINE`, `ACS_VLINE`, `curs_set`, `endwin`, `init_pair`, `initscr`, `noecho`, and `start_color`
[INFO] [stdout]   --> src/frontend/menu.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     ACS_HLINE, ACS_VLINE,
[INFO] [stdout]    |     ^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 11 |     curs_set, endwin, initscr, init_pair, Input, noecho, start_color,
[INFO] [stdout]    |     ^^^^^^^^  ^^^^^^  ^^^^^^^  ^^^^^^^^^         ^^^^^^  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/frontend/curses_frontend.rs:43:13
[INFO] [stdout]    |
[INFO] [stdout] 43 |         let mut window = initscr();
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/frontend/curses_frontend.rs:42:16
[INFO] [stdout]    |
[INFO] [stdout] 42 |     pub fn new(args: Args, backend_channel: FrontendEndpoint) -> CursesFrontend {
[INFO] [stdout]    |                ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `menu_size`
[INFO] [stdout]    --> src/frontend/menu.rs:125:13
[INFO] [stdout]     |
[INFO] [stdout] 125 |         let menu_size = (menu_height, menu_width);
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_menu_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `debug` is never read
[INFO] [stdout]  --> src/args.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Args {
[INFO] [stdout]   |            ---- field in this struct
[INFO] [stdout] 5 |     pub debug: bool,
[INFO] [stdout]   |         ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Args` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `find_piece_square`, `can_move`, and `get_valid_moves_for_piece` are never used
[INFO] [stdout]    --> src/backend/board.rs:124:8
[INFO] [stdout]     |
[INFO] [stdout]  68 | impl Board {
[INFO] [stdout]     | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 124 |     fn find_piece_square(&self, piece: &Piece) -> &Square {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 177 |     fn can_move(&self, from: &Square, to: &Square) -> bool {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 181 |     pub fn get_valid_moves_for_piece(&self, piece: &Piece) -> Vec<Move> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `args` is never read
[INFO] [stdout]   --> src/backend/game.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Game {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 13 |     args: Args,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `code` and `message` are never read
[INFO] [stdout]   --> src/frontend/curses_frontend.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct WindowError {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] 24 |     code: i32,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 25 |     message: String,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `WindowError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/frontend/curses_frontend.rs:43:13
[INFO] [stdout]    |
[INFO] [stdout] 43 |         let mut window = initscr();
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/frontend/curses_frontend.rs:42:16
[INFO] [stdout]    |
[INFO] [stdout] 42 |     pub fn new(args: Args, backend_channel: FrontendEndpoint) -> CursesFrontend {
[INFO] [stdout]    |                ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `menu_size`
[INFO] [stdout]    --> src/frontend/menu.rs:125:13
[INFO] [stdout]     |
[INFO] [stdout] 125 |         let menu_size = (menu_height, menu_width);
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_menu_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `debug` is never read
[INFO] [stdout]  --> src/args.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Args {
[INFO] [stdout]   |            ---- field in this struct
[INFO] [stdout] 5 |     pub debug: bool,
[INFO] [stdout]   |         ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Args` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `find_piece_square`, `can_move`, and `get_valid_moves_for_piece` are never used
[INFO] [stdout]    --> src/backend/board.rs:124:8
[INFO] [stdout]     |
[INFO] [stdout]  68 | impl Board {
[INFO] [stdout]     | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 124 |     fn find_piece_square(&self, piece: &Piece) -> &Square {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 177 |     fn can_move(&self, from: &Square, to: &Square) -> bool {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 181 |     pub fn get_valid_moves_for_piece(&self, piece: &Piece) -> Vec<Move> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `args` is never read
[INFO] [stdout]   --> src/backend/game.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Game {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 13 |     args: Args,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `code` and `message` are never read
[INFO] [stdout]   --> src/frontend/curses_frontend.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct WindowError {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] 24 |     code: i32,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 25 |     message: String,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `WindowError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.04s
[INFO] running `Command { std: "docker" "inspect" "06738c6812ac16710f859db2ffb78da6875b14f9ddab880e65619b0df9fbc2a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06738c6812ac16710f859db2ffb78da6875b14f9ddab880e65619b0df9fbc2a9", kill_on_drop: false }`
[INFO] [stdout] 06738c6812ac16710f859db2ffb78da6875b14f9ddab880e65619b0df9fbc2a9
