[INFO] cloning repository https://github.com/thebenkogan/rust-chess [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thebenkogan/rust-chess" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthebenkogan%2Frust-chess", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthebenkogan%2Frust-chess'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 7e80b0c81b0d5eb0a791a596f930223cca7a86bd [INFO] checking thebenkogan/rust-chess against try#afeffcd090fe6cee35c99f8b5539d74aa443fe34 for pr-140956 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthebenkogan%2Frust-chess" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/thebenkogan/rust-chess [INFO] finished tweaking git repo https://github.com/thebenkogan/rust-chess [INFO] tweaked toml for git repo https://github.com/thebenkogan/rust-chess written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/thebenkogan/rust-chess on toolchain afeffcd090fe6cee35c99f8b5539d74aa443fe34 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+afeffcd090fe6cee35c99f8b5539d74aa443fe34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/thebenkogan/rust-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" "+afeffcd090fe6cee35c99f8b5539d74aa443fe34" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+afeffcd090fe6cee35c99f8b5539d74aa443fe34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e0b4911a78191524463bfeb5fbd76aa8f0b5bde930856481f788451f446849ba [INFO] running `Command { std: "docker" "start" "-a" "e0b4911a78191524463bfeb5fbd76aa8f0b5bde930856481f788451f446849ba", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e0b4911a78191524463bfeb5fbd76aa8f0b5bde930856481f788451f446849ba", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e0b4911a78191524463bfeb5fbd76aa8f0b5bde930856481f788451f446849ba", kill_on_drop: false }` [INFO] [stdout] e0b4911a78191524463bfeb5fbd76aa8f0b5bde930856481f788451f446849ba [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+afeffcd090fe6cee35c99f8b5539d74aa443fe34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4230352e74a2b98c7cf5ada3fff69f4fd343428e8bcd55c6c6e14edb475c621f [INFO] running `Command { std: "docker" "start" "-a" "4230352e74a2b98c7cf5ada3fff69f4fd343428e8bcd55c6c6e14edb475c621f", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.58 [INFO] [stderr] Compiling quote v1.0.27 [INFO] [stderr] Compiling serde v1.0.163 [INFO] [stderr] Checking chess v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: method `remove` is never used [INFO] [stdout] --> src/board.rs:54:12 [INFO] [stdout] | [INFO] [stdout] 35 | impl Board { [INFO] [stdout] | ---------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 54 | pub fn remove(&mut self, pos: Vector) -> Option { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `STARTING_FEN` is never used [INFO] [stdout] --> src/state.rs:7:7 [INFO] [stdout] | [INFO] [stdout] 7 | const STARTING_FEN: &str = "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1"; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `reversions` is never read [INFO] [stdout] --> src/state.rs:18:9 [INFO] [stdout] | [INFO] [stdout] 9 | pub struct State { [INFO] [stdout] | ----- field in this struct [INFO] [stdout] ... [INFO] [stdout] 18 | pub reversions: Vec, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: multiple fields are never read [INFO] [stdout] --> src/state.rs:22:5 [INFO] [stdout] | [INFO] [stdout] 21 | pub struct Reversion { [INFO] [stdout] | --------- fields in this struct [INFO] [stdout] 22 | mv: Move, [INFO] [stdout] | ^^ [INFO] [stdout] 23 | captured_piece: Option, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] 24 | white_castle_kingside: bool, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] 25 | white_castle_queenside: bool, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] 26 | black_castle_kingside: bool, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] 27 | black_castle_queenside: bool, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] 28 | en_passant_square: Option, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `push`, and `pop` are never used [INFO] [stdout] --> src/state.rs:32:12 [INFO] [stdout] | [INFO] [stdout] 31 | impl State { [INFO] [stdout] | ---------- associated items in this implementation [INFO] [stdout] 32 | pub fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 43 | pub fn push(&mut self, mv: Move) { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 121 | pub fn pop(&mut self) { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.58/src/lib.rs:92:30 [INFO] [stdout] | [INFO] [stdout] 92 | feature(proc_macro_span, proc_macro_span_shrink) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0635`. [INFO] [stdout] [INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 1 previous error [INFO] running `Command { std: "docker" "inspect" "4230352e74a2b98c7cf5ada3fff69f4fd343428e8bcd55c6c6e14edb475c621f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4230352e74a2b98c7cf5ada3fff69f4fd343428e8bcd55c6c6e14edb475c621f", kill_on_drop: false }` [INFO] [stdout] 4230352e74a2b98c7cf5ada3fff69f4fd343428e8bcd55c6c6e14edb475c621f