[INFO] cloning repository https://github.com/beatmadsen/chess
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/beatmadsen/chess" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbeatmadsen%2Fchess", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbeatmadsen%2Fchess'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e4bd1f56a7ea4da6b7ea9f773601463b3ad9e610
[INFO] testing beatmadsen/chess against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbeatmadsen%2Fchess" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/beatmadsen/chess 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 git repo https://github.com/beatmadsen/chess
[INFO] finished tweaking git repo https://github.com/beatmadsen/chess
[INFO] tweaked toml for git repo https://github.com/beatmadsen/chess written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/beatmadsen/chess already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] df5bb531601c13adc1da1e6acf286807f54d2acd7ac6a237d7d4939e7099d091
[INFO] running `Command { std: "docker" "start" "-a" "df5bb531601c13adc1da1e6acf286807f54d2acd7ac6a237d7d4939e7099d091", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "df5bb531601c13adc1da1e6acf286807f54d2acd7ac6a237d7d4939e7099d091", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df5bb531601c13adc1da1e6acf286807f54d2acd7ac6a237d7d4939e7099d091", kill_on_drop: false }`
[INFO] [stdout] df5bb531601c13adc1da1e6acf286807f54d2acd7ac6a237d7d4939e7099d091
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 0d88d1dd3519d11698698a5cc7c17e1b1066cf5dab4a12da12a9619c961fe89f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0d88d1dd3519d11698698a5cc7c17e1b1066cf5dab4a12da12a9619c961fe89f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling chess v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/name.rs:39:15
[INFO] [stdout]    |
[INFO] [stdout] 39 |             (0...7, 0...7) => Name {
[INFO] [stdout]    |               ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/name.rs:39:22
[INFO] [stdout]    |
[INFO] [stdout] 39 |             (0...7, 0...7) => Name {
[INFO] [stdout]    |                      ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/name.rs:55:15
[INFO] [stdout]    |
[INFO] [stdout] 55 |             (0...7, 0...7) => Some(Name {
[INFO] [stdout]    |               ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/name.rs:55:22
[INFO] [stdout]    |
[INFO] [stdout] 55 |             (0...7, 0...7) => Some(Name {
[INFO] [stdout]    |                      ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/name.rs:86:20
[INFO] [stdout]    |
[INFO] [stdout] 86 |                 'a'...'h' => Some(c as i8 - 'a' as i8),
[INFO] [stdout]    |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/name.rs:87:20
[INFO] [stdout]    |
[INFO] [stdout] 87 |                 'A'...'H' => Some(c as i8 - 'A' as i8),
[INFO] [stdout]    |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/piece.rs:7:32
[INFO] [stdout]   |
[INFO] [stdout] 7 |     fn box_clone(&self) -> Box<Piece>;
[INFO] [stdout]   |                                ^^^^^ help: use `dyn`: `dyn Piece`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/piece.rs:10:20
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Clone for Box<Piece> {
[INFO] [stdout]    |                    ^^^^^ help: use `dyn`: `dyn Piece`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/piece.rs:11:28
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn clone(&self) -> Box<Piece> {
[INFO] [stdout]    |                            ^^^^^ help: use `dyn`: `dyn Piece`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/piece.rs:37:32
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn box_clone(&self) -> Box<Piece> {
[INFO] [stdout]    |                                ^^^^^ help: use `dyn`: `dyn Piece`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/square.rs:5:23
[INFO] [stdout]   |
[INFO] [stdout] 5 |     piece: Option<Box<Piece>>,
[INFO] [stdout]   |                       ^^^^^ help: use `dyn`: `dyn Piece`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:32:29
[INFO] [stdout]    |
[INFO] [stdout] 32 |         ChessError::new(err.description())
[INFO] [stdout]    |                             ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Pawn`
[INFO] [stdout]   --> src/piece.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct Pawn {}
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Queen`
[INFO] [stdout]   --> src/piece.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct Queen {}
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `King`
[INFO] [stdout]   --> src/piece.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct King {}
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Knight`
[INFO] [stdout]   --> src/piece.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct Knight {}
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Rook`
[INFO] [stdout]   --> src/piece.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Rook {}
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Square`
[INFO] [stdout]  --> src/square.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Square {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `legal_moves`
[INFO] [stdout]   --> src/square.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub fn legal_moves(&self) -> Vec<(Name, Name)> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Position`
[INFO] [stdout]   --> src/square.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct Position {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `legal_moves`
[INFO] [stdout]   --> src/square.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn legal_moves(&self) -> Vec<(Name, Name)> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 21 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.03s
[INFO] running `Command { std: "docker" "inspect" "0d88d1dd3519d11698698a5cc7c17e1b1066cf5dab4a12da12a9619c961fe89f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d88d1dd3519d11698698a5cc7c17e1b1066cf5dab4a12da12a9619c961fe89f", kill_on_drop: false }`
[INFO] [stdout] 0d88d1dd3519d11698698a5cc7c17e1b1066cf5dab4a12da12a9619c961fe89f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 540ccf7224d989dc3c47aba905bddc198a04ac9bfe665011f9d217b1de0ef067
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "540ccf7224d989dc3c47aba905bddc198a04ac9bfe665011f9d217b1de0ef067", kill_on_drop: false }`
[INFO] [stderr]    Compiling chess v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/name.rs:39:15
[INFO] [stdout]    |
[INFO] [stdout] 39 |             (0...7, 0...7) => Name {
[INFO] [stdout]    |               ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/name.rs:39:22
[INFO] [stdout]    |
[INFO] [stdout] 39 |             (0...7, 0...7) => Name {
[INFO] [stdout]    |                      ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/name.rs:55:15
[INFO] [stdout]    |
[INFO] [stdout] 55 |             (0...7, 0...7) => Some(Name {
[INFO] [stdout]    |               ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/name.rs:55:22
[INFO] [stdout]    |
[INFO] [stdout] 55 |             (0...7, 0...7) => Some(Name {
[INFO] [stdout]    |                      ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/name.rs:86:20
[INFO] [stdout]    |
[INFO] [stdout] 86 |                 'a'...'h' => Some(c as i8 - 'a' as i8),
[INFO] [stdout]    |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/name.rs:87:20
[INFO] [stdout]    |
[INFO] [stdout] 87 |                 'A'...'H' => Some(c as i8 - 'A' as i8),
[INFO] [stdout]    |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/piece.rs:7:32
[INFO] [stdout]   |
[INFO] [stdout] 7 |     fn box_clone(&self) -> Box<Piece>;
[INFO] [stdout]   |                                ^^^^^ help: use `dyn`: `dyn Piece`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/piece.rs:10:20
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Clone for Box<Piece> {
[INFO] [stdout]    |                    ^^^^^ help: use `dyn`: `dyn Piece`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/piece.rs:11:28
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn clone(&self) -> Box<Piece> {
[INFO] [stdout]    |                            ^^^^^ help: use `dyn`: `dyn Piece`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/piece.rs:37:32
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn box_clone(&self) -> Box<Piece> {
[INFO] [stdout]    |                                ^^^^^ help: use `dyn`: `dyn Piece`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/square.rs:5:23
[INFO] [stdout]   |
[INFO] [stdout] 5 |     piece: Option<Box<Piece>>,
[INFO] [stdout]   |                       ^^^^^ help: use `dyn`: `dyn Piece`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:32:29
[INFO] [stdout]    |
[INFO] [stdout] 32 |         ChessError::new(err.description())
[INFO] [stdout]    |                             ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Pawn`
[INFO] [stdout]   --> src/piece.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct Pawn {}
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Queen`
[INFO] [stdout]   --> src/piece.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct Queen {}
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `King`
[INFO] [stdout]   --> src/piece.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct King {}
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Knight`
[INFO] [stdout]   --> src/piece.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct Knight {}
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Rook`
[INFO] [stdout]   --> src/piece.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Rook {}
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Square`
[INFO] [stdout]  --> src/square.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Square {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `legal_moves`
[INFO] [stdout]   --> src/square.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub fn legal_moves(&self) -> Vec<(Name, Name)> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Position`
[INFO] [stdout]   --> src/square.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct Position {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `legal_moves`
[INFO] [stdout]   --> src/square.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn legal_moves(&self) -> Vec<(Name, Name)> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 21 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.26s
[INFO] running `Command { std: "docker" "inspect" "540ccf7224d989dc3c47aba905bddc198a04ac9bfe665011f9d217b1de0ef067", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "540ccf7224d989dc3c47aba905bddc198a04ac9bfe665011f9d217b1de0ef067", kill_on_drop: false }`
[INFO] [stdout] 540ccf7224d989dc3c47aba905bddc198a04ac9bfe665011f9d217b1de0ef067
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 8794461a07461930c2875bfebeec549bf16395facca31d06c64a1dbf42fdde2a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8794461a07461930c2875bfebeec549bf16395facca31d06c64a1dbf42fdde2a", kill_on_drop: false }`
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/name.rs:39:15
[INFO] [stderr]    |
[INFO] [stderr] 39 |             (0...7, 0...7) => Name {
[INFO] [stderr]    |               ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/name.rs:39:22
[INFO] [stderr]    |
[INFO] [stderr] 39 |             (0...7, 0...7) => Name {
[INFO] [stderr]    |                      ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/name.rs:55:15
[INFO] [stderr]    |
[INFO] [stderr] 55 |             (0...7, 0...7) => Some(Name {
[INFO] [stderr]    |               ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/name.rs:55:22
[INFO] [stderr]    |
[INFO] [stderr] 55 |             (0...7, 0...7) => Some(Name {
[INFO] [stderr]    |                      ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/name.rs:86:20
[INFO] [stderr]    |
[INFO] [stderr] 86 |                 'a'...'h' => Some(c as i8 - 'a' as i8),
[INFO] [stderr]    |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/name.rs:87:20
[INFO] [stderr]    |
[INFO] [stderr] 87 |                 'A'...'H' => Some(c as i8 - 'A' as i8),
[INFO] [stderr]    |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/piece.rs:7:32
[INFO] [stderr]   |
[INFO] [stderr] 7 |     fn box_clone(&self) -> Box<Piece>;
[INFO] [stderr]   |                                ^^^^^ help: use `dyn`: `dyn Piece`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/piece.rs:10:20
[INFO] [stderr]    |
[INFO] [stderr] 10 | impl Clone for Box<Piece> {
[INFO] [stderr]    |                    ^^^^^ help: use `dyn`: `dyn Piece`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/piece.rs:11:28
[INFO] [stderr]    |
[INFO] [stderr] 11 |     fn clone(&self) -> Box<Piece> {
[INFO] [stderr]    |                            ^^^^^ help: use `dyn`: `dyn Piece`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/piece.rs:37:32
[INFO] [stderr]    |
[INFO] [stderr] 37 |     fn box_clone(&self) -> Box<Piece> {
[INFO] [stderr]    |                                ^^^^^ help: use `dyn`: `dyn Piece`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/square.rs:5:23
[INFO] [stderr]   |
[INFO] [stderr] 5 |     piece: Option<Box<Piece>>,
[INFO] [stderr]   |                       ^^^^^ help: use `dyn`: `dyn Piece`
[INFO] [stderr]   |
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:32:29
[INFO] [stderr]    |
[INFO] [stderr] 32 |         ChessError::new(err.description())
[INFO] [stderr]    |                             ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Pawn`
[INFO] [stderr]   --> src/piece.rs:16:12
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub struct Pawn {}
[INFO] [stderr]    |            ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Queen`
[INFO] [stderr]   --> src/piece.rs:17:12
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub struct Queen {}
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `King`
[INFO] [stderr]   --> src/piece.rs:18:12
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub struct King {}
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Knight`
[INFO] [stderr]   --> src/piece.rs:19:12
[INFO] [stderr]    |
[INFO] [stderr] 19 | pub struct Knight {}
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Rook`
[INFO] [stderr]   --> src/piece.rs:20:12
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub struct Rook {}
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Square`
[INFO] [stderr]  --> src/square.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct Square {
[INFO] [stderr]   |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `legal_moves`
[INFO] [stderr]   --> src/square.rs:10:12
[INFO] [stderr]    |
[INFO] [stderr] 10 |     pub fn legal_moves(&self) -> Vec<(Name, Name)> {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Position`
[INFO] [stderr]   --> src/square.rs:19:12
[INFO] [stderr]    |
[INFO] [stderr] 19 | pub struct Position {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `legal_moves`
[INFO] [stderr]   --> src/square.rs:24:12
[INFO] [stderr]    |
[INFO] [stderr] 24 |     pub fn legal_moves(&self) -> Vec<(Name, Name)> {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `chess` (bin "chess" test) generated 21 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/chess-e054572791f2e046)
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test name::tests::a1_has_no_south_west_neighbour ... ok
[INFO] [stdout] test name::tests::a1_collects_correct_east_neighbours ... ok
[INFO] [stdout] test name::tests::b2_has_correct_south_west_neighbour ... ok
[INFO] [stdout] test name::tests::b7_has_correct_north_west_neighbour ... ok
[INFO] [stdout] test name::tests::d4_has_correct_east_neighbour ... ok
[INFO] [stdout] test name::tests::d4_has_correct_north_neighbour ... ok
[INFO] [stdout] test name::tests::d4_has_correct_south_neighbour ... ok
[INFO] [stdout] test name::tests::d4_has_correct_west_neighbour ... ok
[INFO] [stdout] test name::tests::g2_has_correct_south_east_neighbour ... ok
[INFO] [stdout] test name::tests::g7_has_correct_north_east_neighbour ... ok
[INFO] [stdout] test name::tests::h1_has_no_south_east_neighbour ... ok
[INFO] [stdout] test name::tests::h8_has_no_north_east_neighbour ... ok
[INFO] [stdout] test name::tests::a3_collects_correct_south_west_neighbours ... ok
[INFO] [stdout] test name::tests::a8_has_no_north_west_neighbour ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8794461a07461930c2875bfebeec549bf16395facca31d06c64a1dbf42fdde2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8794461a07461930c2875bfebeec549bf16395facca31d06c64a1dbf42fdde2a", kill_on_drop: false }`
[INFO] [stdout] 8794461a07461930c2875bfebeec549bf16395facca31d06c64a1dbf42fdde2a