[INFO] fetching crate chessman 0.1.0... [INFO] checking chessman-0.1.0 against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056 [INFO] extracting crate chessman 0.1.0 into /workspace/builds/worker-3/source [INFO] validating manifest of crates.io crate chessman 0.1.0 on toolchain 8de4b308b608cded0ebccf658a0fc719bce87d4e [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "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-3/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "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" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "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] [stderr] Downloading crates ... [INFO] [stderr] Downloaded pretty_assertions v0.3.4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 402f0a0d4f561388747358e538416e9006177ec25ff727b58790e288e6a6db39 [INFO] running `Command { std: "docker" "start" "-a" "402f0a0d4f561388747358e538416e9006177ec25ff727b58790e288e6a6db39", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "402f0a0d4f561388747358e538416e9006177ec25ff727b58790e288e6a6db39", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "402f0a0d4f561388747358e538416e9006177ec25ff727b58790e288e6a6db39", kill_on_drop: false }` [INFO] [stdout] 402f0a0d4f561388747358e538416e9006177ec25ff727b58790e288e6a6db39 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c33dd46a45e98c97f1048205c04a7cabd4f55bd08cd531c1b2d8dc3744143993 [INFO] running `Command { std: "docker" "start" "-a" "c33dd46a45e98c97f1048205c04a7cabd4f55bd08cd531c1b2d8dc3744143993", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Checking difference v1.0.0 [INFO] [stderr] Checking ansi_term v0.9.0 [INFO] [stderr] Checking 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] Checking pretty_assertions v0.3.4 [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 dev [unoptimized + debuginfo] target(s) in 2.27s [INFO] running `Command { std: "docker" "inspect" "c33dd46a45e98c97f1048205c04a7cabd4f55bd08cd531c1b2d8dc3744143993", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c33dd46a45e98c97f1048205c04a7cabd4f55bd08cd531c1b2d8dc3744143993", kill_on_drop: false }` [INFO] [stdout] c33dd46a45e98c97f1048205c04a7cabd4f55bd08cd531c1b2d8dc3744143993