[INFO] fetching crate chessman 0.1.0... [INFO] testing chessman-0.1.0 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031 [INFO] extracting crate chessman 0.1.0 into /workspace/builds/worker-91/source [INFO] validating manifest of crates.io crate chessman 0.1.0 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate chessman 0.1.0 [INFO] finished tweaking crates.io crate chessman 0.1.0 [INFO] tweaked toml for crates.io crate chessman 0.1.0 written to /workspace/builds/worker-91/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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-91/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e46da329e7cb3868cf429c12fdf408fbec59eac7c51037bd020887a84bb563ba [INFO] running `Command { std: "docker" "start" "-a" "e46da329e7cb3868cf429c12fdf408fbec59eac7c51037bd020887a84bb563ba", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e46da329e7cb3868cf429c12fdf408fbec59eac7c51037bd020887a84bb563ba", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e46da329e7cb3868cf429c12fdf408fbec59eac7c51037bd020887a84bb563ba", kill_on_drop: false }` [INFO] [stdout] e46da329e7cb3868cf429c12fdf408fbec59eac7c51037bd020887a84bb563ba [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3d8afa63a9d5a86d5799d11a2c2fa888a32551990f82d8b360f5c2b947723b31 [INFO] running `Command { std: "docker" "start" "-a" "3d8afa63a9d5a86d5799d11a2c2fa888a32551990f82d8b360f5c2b947723b31", kill_on_drop: false }` [INFO] [stderr] Compiling chessman v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/solvers/queens_iter.rs:10:49 [INFO] [stdout] | [INFO] [stdout] 10 | fn permutations<'a, T, I>(collection: I) -> Box> + 'a> [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator> + 'a` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/solvers/queens_iter.rs:29:19 [INFO] [stdout] | [INFO] [stdout] 29 | iterator: Box> [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant is never used: `N` [INFO] [stdout] --> src/solvers/queens.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | const N: usize = 8; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `try1` [INFO] [stdout] --> src/solvers/queens.rs:3:4 [INFO] [stdout] | [INFO] [stdout] 3 | fn try1(mut board: &mut [[bool; N]; N], row: usize, mut count: &mut i64) { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `main` [INFO] [stdout] --> src/solvers/queens_iter.rs:4:4 [INFO] [stdout] | [INFO] [stdout] 4 | fn main() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `permutations` [INFO] [stdout] --> src/solvers/queens_iter.rs:10:4 [INFO] [stdout] | [INFO] [stdout] 10 | fn permutations<'a, T, I>(collection: I) -> Box> + 'a> [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/solvers/queens_iter.rs:33:12 [INFO] [stdout] | [INFO] [stdout] 33 | pub fn new(n: u32) -> NQueens { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.57s [INFO] running `Command { std: "docker" "inspect" "3d8afa63a9d5a86d5799d11a2c2fa888a32551990f82d8b360f5c2b947723b31", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3d8afa63a9d5a86d5799d11a2c2fa888a32551990f82d8b360f5c2b947723b31", kill_on_drop: false }` [INFO] [stdout] 3d8afa63a9d5a86d5799d11a2c2fa888a32551990f82d8b360f5c2b947723b31 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 26a6845a54ac41b4c18c0ebc244dde8c0df2ed8ced473de806412fc4adc9507d [INFO] running `Command { std: "docker" "start" "-a" "26a6845a54ac41b4c18c0ebc244dde8c0df2ed8ced473de806412fc4adc9507d", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling difference v1.0.0 [INFO] [stderr] Compiling ansi_term v0.9.0 [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/solvers/queens_iter.rs:10:49 [INFO] [stdout] | [INFO] [stdout] 10 | fn permutations<'a, T, I>(collection: I) -> Box> + 'a> [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator> + 'a` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/solvers/queens_iter.rs:29:19 [INFO] [stdout] | [INFO] [stdout] 29 | iterator: Box> [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant is never used: `N` [INFO] [stdout] --> src/solvers/queens.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | const N: usize = 8; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `try1` [INFO] [stdout] --> src/solvers/queens.rs:3:4 [INFO] [stdout] | [INFO] [stdout] 3 | fn try1(mut board: &mut [[bool; N]; N], row: usize, mut count: &mut i64) { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `main` [INFO] [stdout] --> src/solvers/queens_iter.rs:4:4 [INFO] [stdout] | [INFO] [stdout] 4 | fn main() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `permutations` [INFO] [stdout] --> src/solvers/queens_iter.rs:10:4 [INFO] [stdout] | [INFO] [stdout] 10 | fn permutations<'a, T, I>(collection: I) -> Box> + 'a> [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/solvers/queens_iter.rs:33:12 [INFO] [stdout] | [INFO] [stdout] 33 | pub fn new(n: u32) -> NQueens { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling pretty_assertions v0.3.4 [INFO] [stderr] Compiling chessman v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/solvers/queens_iter.rs:10:49 [INFO] [stdout] | [INFO] [stdout] 10 | fn permutations<'a, T, I>(collection: I) -> Box> + 'a> [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator> + 'a` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/solvers/queens_iter.rs:29:19 [INFO] [stdout] | [INFO] [stdout] 29 | iterator: Box> [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `main` [INFO] [stdout] --> src/solvers/queens_iter.rs:4:4 [INFO] [stdout] | [INFO] [stdout] 4 | fn main() { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `permutations` [INFO] [stdout] --> src/solvers/queens_iter.rs:10:4 [INFO] [stdout] | [INFO] [stdout] 10 | fn permutations<'a, T, I>(collection: I) -> Box> + 'a> [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/solvers/queens_iter.rs:33:12 [INFO] [stdout] | [INFO] [stdout] 33 | pub fn new(n: u32) -> NQueens { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.37s [INFO] running `Command { std: "docker" "inspect" "26a6845a54ac41b4c18c0ebc244dde8c0df2ed8ced473de806412fc4adc9507d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "26a6845a54ac41b4c18c0ebc244dde8c0df2ed8ced473de806412fc4adc9507d", kill_on_drop: false }` [INFO] [stdout] 26a6845a54ac41b4c18c0ebc244dde8c0df2ed8ced473de806412fc4adc9507d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] a8b1742eb8c1425726cef3a0cde0d596f5265b938180a6a5b228b558c579a5dd [INFO] running `Command { std: "docker" "start" "-a" "a8b1742eb8c1425726cef3a0cde0d596f5265b938180a6a5b228b558c579a5dd", kill_on_drop: false }` [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/solvers/queens_iter.rs:10:49 [INFO] [stderr] | [INFO] [stderr] 10 | fn permutations<'a, T, I>(collection: I) -> Box> + 'a> [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator> + 'a` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/solvers/queens_iter.rs:29:19 [INFO] [stderr] | [INFO] [stderr] 29 | iterator: Box> [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] [INFO] [stderr] warning: constant is never used: `N` [INFO] [stderr] --> src/solvers/queens.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | const N: usize = 8; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `try1` [INFO] [stderr] --> src/solvers/queens.rs:3:4 [INFO] [stderr] | [INFO] [stderr] 3 | fn try1(mut board: &mut [[bool; N]; N], row: usize, mut count: &mut i64) { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `main` [INFO] [stderr] --> src/solvers/queens_iter.rs:4:4 [INFO] [stderr] | [INFO] [stderr] 4 | fn main() { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `permutations` [INFO] [stderr] --> src/solvers/queens_iter.rs:10:4 [INFO] [stderr] | [INFO] [stderr] 10 | fn permutations<'a, T, I>(collection: I) -> Box> + 'a> [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new` [INFO] [stderr] --> src/solvers/queens_iter.rs:33:12 [INFO] [stderr] | [INFO] [stderr] 33 | pub fn new(n: u32) -> NQueens { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: `chessman` (lib) generated 7 warnings [INFO] [stderr] warning: function is never used: `main` [INFO] [stderr] --> src/solvers/queens_iter.rs:4:4 [INFO] [stderr] | [INFO] [stderr] 4 | fn main() { [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `chessman` (lib test) generated 5 warnings (4 duplicates) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.11s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/chessman-32f2569fab89e5c6) [INFO] [stdout] [INFO] [stdout] running 2 tests [INFO] [stdout] test solvers::queens::main ... ok [INFO] [stdout] test board::tests::test_nqueens ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s [INFO] [stdout] [INFO] [stderr] Doc-tests chessman [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "a8b1742eb8c1425726cef3a0cde0d596f5265b938180a6a5b228b558c579a5dd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a8b1742eb8c1425726cef3a0cde0d596f5265b938180a6a5b228b558c579a5dd", kill_on_drop: false }` [INFO] [stdout] a8b1742eb8c1425726cef3a0cde0d596f5265b938180a6a5b228b558c579a5dd