[INFO] fetching crate candidate 0.0.5... [INFO] checking candidate-0.0.5 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] extracting crate candidate 0.0.5 into /workspace/builds/worker-0-tc1/source [INFO] validating manifest of crates.io crate candidate 0.0.5 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate candidate 0.0.5 [INFO] finished tweaking crates.io crate candidate 0.0.5 [INFO] tweaked toml for crates.io crate candidate 0.0.5 written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 86 packages [INFO] [stderr] Adding arrayvec v0.5.2 (latest: v0.7.4) [INFO] [stderr] Adding bitflags v1.3.2 (latest: v2.5.0) [INFO] [stderr] Adding clap v2.34.0 (latest: v4.5.4) [INFO] [stderr] Adding criterion v0.3.6 (latest: v0.5.1) [INFO] [stderr] Adding criterion-plot v0.4.5 (latest: v0.5.0) [INFO] [stderr] Adding half v1.8.3 (latest: v2.4.0) [INFO] [stderr] Adding hermit-abi v0.1.19 (latest: v0.3.9) [INFO] [stderr] Adding itertools v0.10.5 (latest: v0.12.1) [INFO] [stderr] Adding object v0.32.2 (latest: v0.34.0) [INFO] [stderr] Adding rand v0.7.3 (latest: v0.8.5) [INFO] [stderr] Adding rand_chacha v0.2.2 (latest: v0.3.1) [INFO] [stderr] Adding rand_core v0.5.1 (latest: v0.6.4) [INFO] [stderr] Adding rand_hc v0.2.0 (latest: v0.3.2) [INFO] [stderr] Adding rand_pcg v0.2.1 (latest: v0.3.1) [INFO] [stderr] Adding syn v1.0.109 (latest: v2.0.58) [INFO] [stderr] Adding synstructure v0.12.6 (latest: v0.13.1) [INFO] [stderr] Adding textwrap v0.11.0 (latest: v0.16.1) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded nodrop v0.1.14 [INFO] [stderr] Downloaded rand_pcg v0.2.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 92be8d9d94327b0b1363e28df2aca8a78df4f43e1786db6adf85e170da4b329b [INFO] running `Command { std: "docker" "start" "-a" "92be8d9d94327b0b1363e28df2aca8a78df4f43e1786db6adf85e170da4b329b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "92be8d9d94327b0b1363e28df2aca8a78df4f43e1786db6adf85e170da4b329b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "92be8d9d94327b0b1363e28df2aca8a78df4f43e1786db6adf85e170da4b329b", kill_on_drop: false }` [INFO] [stdout] 92be8d9d94327b0b1363e28df2aca8a78df4f43e1786db6adf85e170da4b329b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7a377cedea54e806b93117120ac5f6efe96fabbb8aac06f26067a69be35d3312 [INFO] running `Command { std: "docker" "start" "-a" "7a377cedea54e806b93117120ac5f6efe96fabbb8aac06f26067a69be35d3312", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.79 [INFO] [stderr] Compiling unicode-ident v1.0.12 [INFO] [stderr] Compiling libc v0.2.153 [INFO] [stderr] Compiling cc v1.0.90 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Checking memchr v2.7.2 [INFO] [stderr] Compiling crossbeam-utils v0.8.19 [INFO] [stderr] Compiling serde v1.0.197 [INFO] [stderr] Compiling unicode-xid v0.2.4 [INFO] [stderr] Compiling failure_derive v0.1.8 [INFO] [stderr] Compiling adler v1.0.2 [INFO] [stderr] Compiling gimli v0.28.1 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling ppv-lite86 v0.2.17 [INFO] [stderr] Compiling miniz_oxide v0.7.2 [INFO] [stderr] Compiling autocfg v1.2.0 [INFO] [stderr] Compiling rustc-demangle v0.1.23 [INFO] [stderr] Compiling rand_pcg v0.2.1 [INFO] [stderr] Compiling rayon-core v1.12.1 [INFO] [stderr] Compiling rand_chacha v0.2.2 [INFO] [stderr] Checking itoa v1.0.11 [INFO] [stderr] Compiling serde_json v1.0.115 [INFO] [stderr] Compiling object v0.32.2 [INFO] [stderr] Checking either v1.10.0 [INFO] [stderr] Checking ryu v1.0.17 [INFO] [stderr] Compiling rand v0.7.3 [INFO] [stderr] Checking crossbeam-epoch v0.9.18 [INFO] [stderr] Compiling quote v1.0.35 [INFO] [stderr] Checking crossbeam-deque v0.8.5 [INFO] [stderr] Compiling num-traits v0.2.18 [INFO] [stderr] Checking unicode-width v0.1.11 [INFO] [stderr] Checking plotters-backend v0.3.5 [INFO] [stderr] Checking regex-syntax v0.8.3 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Compiling syn v2.0.58 [INFO] [stderr] Checking itertools v0.10.5 [INFO] [stderr] Checking csv-core v0.1.11 [INFO] [stderr] Checking plotters-svg v0.3.5 [INFO] [stderr] Checking half v1.8.3 [INFO] [stderr] Checking cast v0.3.0 [INFO] [stderr] Checking bitflags v1.3.2 [INFO] [stderr] Checking addr2line v0.21.0 [INFO] [stderr] Checking same-file v1.0.6 [INFO] [stderr] Checking clap v2.34.0 [INFO] [stderr] Checking rayon v1.10.0 [INFO] [stderr] Checking walkdir v2.5.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking nodrop v0.1.14 [INFO] [stderr] Checking oorandom v11.1.3 [INFO] [stderr] Checking arrayvec v0.5.2 [INFO] [stderr] Checking regex-automata v0.4.6 [INFO] [stderr] Checking criterion-plot v0.4.5 [INFO] [stderr] Checking plotters v0.3.5 [INFO] [stderr] Checking serde_cbor v0.11.2 [INFO] [stderr] Checking csv v1.3.0 [INFO] [stderr] Compiling synstructure v0.12.6 [INFO] [stderr] Checking regex v1.10.4 [INFO] [stderr] Checking tinytemplate v1.2.1 [INFO] [stderr] Compiling backtrace v0.3.71 [INFO] [stderr] Compiling serde_derive v1.0.197 [INFO] [stderr] Compiling failure v0.1.8 [INFO] [stderr] Compiling candidate v0.0.5 (/opt/rustwide/workdir) [INFO] [stderr] Checking criterion v0.3.6 [INFO] [stdout] warning: the item `TryFrom` is imported redundantly [INFO] [stdout] --> src/board.rs:17:20 [INFO] [stdout] | [INFO] [stdout] 17 | use std::convert::{TryFrom, TryInto}; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryFrom` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `TryInto` is imported redundantly [INFO] [stdout] --> src/board.rs:17:29 [INFO] [stdout] | [INFO] [stdout] 17 | use std::convert::{TryFrom, TryInto}; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryInto` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `ExactSizeIterator` is imported redundantly [INFO] [stdout] --> src/movegen/movegen.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | use std::iter::ExactSizeIterator; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `ExactSizeIterator` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `self::piece_type::*` [INFO] [stdout] --> src/movegen/mod.rs:5:9 [INFO] [stdout] | [INFO] [stdout] 5 | pub use self::piece_type::*; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::borrow::Borrow` [INFO] [stdout] --> src/game.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use std::borrow::Borrow; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `from_square` [INFO] [stdout] --> src/movegen/piece_type.rs:378:9 [INFO] [stdout] | [INFO] [stdout] 378 | from_square: Option, // ignored [INFO] [stdout] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_from_square` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `is` is never used [INFO] [stdout] --> src/movegen/piece_type.rs:15:8 [INFO] [stdout] | [INFO] [stdout] 14 | pub trait PieceType { [INFO] [stdout] | --------- associated function in this trait [INFO] [stdout] 15 | fn is(piece: Piece) -> bool; [INFO] [stdout] | ^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `TryInto` is imported redundantly [INFO] [stdout] --> benches/benchmarks/perft.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::convert::TryInto; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryInto` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `san` [INFO] [stdout] --> benches/benchmarks/game.rs:29:17 [INFO] [stdout] | [INFO] [stdout] 29 | for (index, san) in san_moves.iter().enumerate() { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_san` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `legality_benchmarks` is never used [INFO] [stdout] --> benches/benchmarks/game.rs:20:4 [INFO] [stdout] | [INFO] [stdout] 20 | fn legality_benchmarks(c: &mut Criterion) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `TryFrom` is imported redundantly [INFO] [stdout] --> src/board.rs:17:20 [INFO] [stdout] | [INFO] [stdout] 17 | use std::convert::{TryFrom, TryInto}; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryFrom` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `TryInto` is imported redundantly [INFO] [stdout] --> src/board.rs:17:29 [INFO] [stdout] | [INFO] [stdout] 17 | use std::convert::{TryFrom, TryInto}; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryInto` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `ExactSizeIterator` is imported redundantly [INFO] [stdout] --> src/movegen/movegen.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | use std::iter::ExactSizeIterator; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `ExactSizeIterator` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `TryInto` is imported redundantly [INFO] [stdout] --> src/movegen/movegen.rs:553:5 [INFO] [stdout] | [INFO] [stdout] 553 | use std::convert::TryInto; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryInto` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `self::piece_type::*` [INFO] [stdout] --> src/movegen/mod.rs:5:9 [INFO] [stdout] | [INFO] [stdout] 5 | pub use self::piece_type::*; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::borrow::Borrow` [INFO] [stdout] --> src/game.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use std::borrow::Borrow; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `TryInto` is imported redundantly [INFO] [stdout] --> src/board_builder.rs:512:5 [INFO] [stdout] | [INFO] [stdout] 512 | use std::convert::TryInto; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryInto` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `from_square` [INFO] [stdout] --> src/movegen/piece_type.rs:378:9 [INFO] [stdout] | [INFO] [stdout] 378 | from_square: Option, // ignored [INFO] [stdout] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_from_square` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `is` is never used [INFO] [stdout] --> src/movegen/piece_type.rs:15:8 [INFO] [stdout] | [INFO] [stdout] 14 | pub trait PieceType { [INFO] [stdout] | --------- associated function in this trait [INFO] [stdout] 15 | fn is(piece: Piece) -> bool; [INFO] [stdout] | ^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 9 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [optimized + debuginfo] target(s) in 19.89s [INFO] running `Command { std: "docker" "inspect" "7a377cedea54e806b93117120ac5f6efe96fabbb8aac06f26067a69be35d3312", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7a377cedea54e806b93117120ac5f6efe96fabbb8aac06f26067a69be35d3312", kill_on_drop: false }` [INFO] [stdout] 7a377cedea54e806b93117120ac5f6efe96fabbb8aac06f26067a69be35d3312