[INFO] cloning repository https://github.com/rynorris/chess
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rynorris/chess" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frynorris%2Fchess", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frynorris%2Fchess'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5fa95ec072885a9fd554d80f0aeac4ab051fc89c
[INFO] checking rynorris/chess against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frynorris%2Fchess" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/rynorris/chess
[INFO] finished tweaking git repo https://github.com/rynorris/chess
[INFO] tweaked toml for git repo https://github.com/rynorris/chess written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/rynorris/chess on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/rynorris/chess 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] afd7f595dcefadc18c8ebf6178a164298f7e1b231dc453d12c019485be85fde4
[INFO] running `Command { std: "docker" "start" "-a" "afd7f595dcefadc18c8ebf6178a164298f7e1b231dc453d12c019485be85fde4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "afd7f595dcefadc18c8ebf6178a164298f7e1b231dc453d12c019485be85fde4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afd7f595dcefadc18c8ebf6178a164298f7e1b231dc453d12c019485be85fde4", kill_on_drop: false }`
[INFO] [stdout] afd7f595dcefadc18c8ebf6178a164298f7e1b231dc453d12c019485be85fde4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 68058612a47e06b0ad85af5765258ebf66fe41f730781beddfdfe01577e204f2
[INFO] running `Command { std: "docker" "start" "-a" "68058612a47e06b0ad85af5765258ebf66fe41f730781beddfdfe01577e204f2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.70
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]     Checking textwrap v0.12.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking os_str_bytes v2.4.0
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking cassowary v0.3.0
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking crossbeam-channel v0.4.4
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking termion v1.5.6
[INFO] [stderr]     Checking crossbeam-deque v0.7.4
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking crossbeam v0.7.3
[INFO] [stderr]     Checking tui v0.15.0
[INFO] [stderr]    Compiling derive_more v0.99.13
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.2
[INFO] [stderr]     Checking clap v3.0.0-beta.2
[INFO] [stderr]     Checking chess-lib v0.1.0 (/opt/rustwide/workdir/chess-lib)
[INFO] [stdout] warning: struct `Pin` is never constructed
[INFO] [stdout]    --> chess-lib/src/moves.rs:165:8
[INFO] [stdout]     |
[INFO] [stdout] 165 | struct Pin(BitCoord, BitBoard);
[INFO] [stdout]     |        ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a mutable reference to mutable static
[INFO] [stdout]   --> chess-lib/src/zobrist.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |             DEFAULT_HASHER.get_or_insert_with(|| Self::from_seed(Self::DEFAULT_SEED))
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ mutable reference to mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]    = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives
[INFO] [stdout]    = note: `#[warn(static_mut_refs)]` (part of `#[warn(rust_2024_compatibility)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking chess-ai v0.1.0 (/opt/rustwide/workdir/chess-ai)
[INFO] [stdout] warning: struct `Pin` is never constructed
[INFO] [stdout]    --> chess-lib/src/moves.rs:165:8
[INFO] [stdout]     |
[INFO] [stdout] 165 | struct Pin(BitCoord, BitBoard);
[INFO] [stdout]     |        ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a mutable reference to mutable static
[INFO] [stdout]   --> chess-lib/src/zobrist.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |             DEFAULT_HASHER.get_or_insert_with(|| Self::from_seed(Self::DEFAULT_SEED))
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ mutable reference to mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]    = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives
[INFO] [stdout]    = note: `#[warn(static_mut_refs)]` (part of `#[warn(rust_2024_compatibility)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking chess-cli v0.1.0 (/opt/rustwide/workdir/chess-cli)
[INFO] [stdout] warning: struct `ChessBoard` is never constructed
[INFO] [stdout]  --> chess-cli/src/board.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct ChessBoard {
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `HBorder` is never used
[INFO] [stdout]   --> chess-cli/src/board.rs:19:6
[INFO] [stdout]    |
[INFO] [stdout] 19 | enum HBorder {
[INFO] [stdout]    |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `VBorder` is never used
[INFO] [stdout]   --> chess-cli/src/board.rs:26:6
[INFO] [stdout]    |
[INFO] [stdout] 26 | enum VBorder {
[INFO] [stdout]    |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `symbol_for_piece` is never used
[INFO] [stdout]   --> chess-cli/src/board.rs:33:4
[INFO] [stdout]    |
[INFO] [stdout] 33 | fn symbol_for_piece(piece: Piece) -> &'static str {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> chess-cli/src/main.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | /     #[clap(short, long)]
[INFO] [stdout] 30 | |     fen: String,
[INFO] [stdout]    | |_______________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> chess-cli/src/main.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 | /     #[clap(short, long)]
[INFO] [stdout] 39 | |     fen: String,
[INFO] [stdout]    | |_______________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> chess-cli/src/main.rs:50:5
[INFO] [stdout]    |
[INFO] [stdout] 50 | /     #[clap(short, long)]
[INFO] [stdout] 51 | |     piece: String,
[INFO] [stdout]    | |_________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> chess-cli/src/main.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 59 | /     #[clap(short, long)]
[INFO] [stdout] 60 | |     sourcefile: Option<String>,
[INFO] [stdout]    | |______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `chess-cli` (bin "chess-cli") due to 4 previous errors; 4 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: struct `ChessBoard` is never constructed
[INFO] [stdout]  --> chess-cli/src/board.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct ChessBoard {
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `HBorder` is never used
[INFO] [stdout]   --> chess-cli/src/board.rs:19:6
[INFO] [stdout]    |
[INFO] [stdout] 19 | enum HBorder {
[INFO] [stdout]    |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `VBorder` is never used
[INFO] [stdout]   --> chess-cli/src/board.rs:26:6
[INFO] [stdout]    |
[INFO] [stdout] 26 | enum VBorder {
[INFO] [stdout]    |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `symbol_for_piece` is never used
[INFO] [stdout]   --> chess-cli/src/board.rs:33:4
[INFO] [stdout]    |
[INFO] [stdout] 33 | fn symbol_for_piece(piece: Piece) -> &'static str {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> chess-cli/src/main.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | /     #[clap(short, long)]
[INFO] [stdout] 30 | |     fen: String,
[INFO] [stdout]    | |_______________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> chess-cli/src/main.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 | /     #[clap(short, long)]
[INFO] [stdout] 39 | |     fen: String,
[INFO] [stdout]    | |_______________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> chess-cli/src/main.rs:50:5
[INFO] [stdout]    |
[INFO] [stdout] 50 | /     #[clap(short, long)]
[INFO] [stdout] 51 | |     piece: String,
[INFO] [stdout]    | |_________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> chess-cli/src/main.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 59 | /     #[clap(short, long)]
[INFO] [stdout] 60 | |     sourcefile: Option<String>,
[INFO] [stdout]    | |______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `chess-cli` (bin "chess-cli" test) due to 4 previous errors; 4 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "68058612a47e06b0ad85af5765258ebf66fe41f730781beddfdfe01577e204f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68058612a47e06b0ad85af5765258ebf66fe41f730781beddfdfe01577e204f2", kill_on_drop: false }`
[INFO] [stdout] 68058612a47e06b0ad85af5765258ebf66fe41f730781beddfdfe01577e204f2
