[INFO] cloning repository https://github.com/declanvk/boknafisk
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/declanvk/boknafisk" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdeclanvk%2Fboknafisk", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdeclanvk%2Fboknafisk'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 595ab8824118f9ecc0a44da64544a65b4f664ce6
[INFO] testing declanvk/boknafisk against 1.69.0 for beta-1.70-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdeclanvk%2Fboknafisk" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/declanvk/boknafisk on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/declanvk/boknafisk
[INFO] finished tweaking git repo https://github.com/declanvk/boknafisk
[INFO] tweaked toml for git repo https://github.com/declanvk/boknafisk written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/declanvk/boknafisk 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" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded unicode-segmentation v1.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 13b0fec1fbc7860340d8b6f1c26c8ea9b9fd1ebee7f03d12b57e26459116dc62
[INFO] running `Command { std: "docker" "start" "-a" "13b0fec1fbc7860340d8b6f1c26c8ea9b9fd1ebee7f03d12b57e26459116dc62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "13b0fec1fbc7860340d8b6f1c26c8ea9b9fd1ebee7f03d12b57e26459116dc62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13b0fec1fbc7860340d8b6f1c26c8ea9b9fd1ebee7f03d12b57e26459116dc62", kill_on_drop: false }`
[INFO] [stdout] 13b0fec1fbc7860340d8b6f1c26c8ea9b9fd1ebee7f03d12b57e26459116dc62
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cd63fa3c6676a0cb5862aae6e8ae019dcf270833b9dc962b9f38b1a50397de3b
[INFO] running `Command { std: "docker" "start" "-a" "cd63fa3c6676a0cb5862aae6e8ae019dcf270833b9dc962b9f38b1a50397de3b", kill_on_drop: false }`
[INFO] [stderr]    Compiling lazy_static v0.2.2
[INFO] [stderr]    Compiling bitflags v0.7.0
[INFO] [stderr]    Compiling unicode-segmentation v1.0.1
[INFO] [stderr]    Compiling boknafisk v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0437]: type `Err` is not a member of trait `TryFrom`
[INFO] [stdout]   --> src/square_position.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     type Err = SquarePositionFromError;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ not a member of trait `TryFrom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0437]: type `Err` is not a member of trait `TryFrom`
[INFO] [stdout]   --> src/square_position.rs:54:5
[INFO] [stdout]    |
[INFO] [stdout] 54 |     type Err = SquarePositionFromError;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ not a member of trait `TryFrom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(try_from)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(box_syntax)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/piece_board.rs:23:77
[INFO] [stdout]    |
[INFO] [stdout] 23 |         starting.board[0] = Some(Piece::new(PieceType::Rook, Color::White));;
[INFO] [stdout]    |                                                                             ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/piece_board.rs:24:79
[INFO] [stdout]    |
[INFO] [stdout] 24 |         starting.board[1] = Some(Piece::new(PieceType::Knight, Color::White));;
[INFO] [stdout]    |                                                                               ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/piece_board.rs:25:79
[INFO] [stdout]    |
[INFO] [stdout] 25 |         starting.board[2] = Some(Piece::new(PieceType::Bishop, Color::White));;
[INFO] [stdout]    |                                                                               ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/piece_board.rs:26:78
[INFO] [stdout]    |
[INFO] [stdout] 26 |         starting.board[3] = Some(Piece::new(PieceType::Queen, Color::White));;
[INFO] [stdout]    |                                                                              ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/piece_board.rs:27:77
[INFO] [stdout]    |
[INFO] [stdout] 27 |         starting.board[4] = Some(Piece::new(PieceType::King, Color::White));;
[INFO] [stdout]    |                                                                             ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/piece_board.rs:28:79
[INFO] [stdout]    |
[INFO] [stdout] 28 |         starting.board[5] = Some(Piece::new(PieceType::Bishop, Color::White));;
[INFO] [stdout]    |                                                                               ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/piece_board.rs:29:79
[INFO] [stdout]    |
[INFO] [stdout] 29 |         starting.board[6] = Some(Piece::new(PieceType::Knight, Color::White));;
[INFO] [stdout]    |                                                                               ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/piece_board.rs:30:77
[INFO] [stdout]    |
[INFO] [stdout] 30 |         starting.board[7] = Some(Piece::new(PieceType::Rook, Color::White));;
[INFO] [stdout]    |                                                                             ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/piece_board.rs:36:78
[INFO] [stdout]    |
[INFO] [stdout] 36 |         starting.board[56] = Some(Piece::new(PieceType::Rook, Color::Black));;
[INFO] [stdout]    |                                                                              ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/piece_board.rs:37:80
[INFO] [stdout]    |
[INFO] [stdout] 37 |         starting.board[57] = Some(Piece::new(PieceType::Knight, Color::Black));;
[INFO] [stdout]    |                                                                                ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/piece_board.rs:38:80
[INFO] [stdout]    |
[INFO] [stdout] 38 |         starting.board[58] = Some(Piece::new(PieceType::Bishop, Color::Black));;
[INFO] [stdout]    |                                                                                ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/piece_board.rs:39:79
[INFO] [stdout]    |
[INFO] [stdout] 39 |         starting.board[59] = Some(Piece::new(PieceType::Queen, Color::Black));;
[INFO] [stdout]    |                                                                               ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/piece_board.rs:40:78
[INFO] [stdout]    |
[INFO] [stdout] 40 |         starting.board[60] = Some(Piece::new(PieceType::King, Color::Black));;
[INFO] [stdout]    |                                                                              ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/piece_board.rs:41:80
[INFO] [stdout]    |
[INFO] [stdout] 41 |         starting.board[61] = Some(Piece::new(PieceType::Bishop, Color::Black));;
[INFO] [stdout]    |                                                                                ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/piece_board.rs:42:80
[INFO] [stdout]    |
[INFO] [stdout] 42 |         starting.board[62] = Some(Piece::new(PieceType::Knight, Color::Black));;
[INFO] [stdout]    |                                                                                ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/piece_board.rs:43:78
[INFO] [stdout]    |
[INFO] [stdout] 43 |         starting.board[63] = Some(Piece::new(PieceType::Rook, Color::Black));;
[INFO] [stdout]    |                                                                              ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/castling.rs:5:1
[INFO] [stdout]    |
[INFO] [stdout] 5  | / bitflags! {
[INFO] [stdout] 6  | |     pub flags CastlingFlags: u8 {
[INFO] [stdout] 7  | |         const WHITE_QUEENSIDE = 0b0000001,
[INFO] [stdout] 8  | |         const WHITE_KINGSIDE  = 0b0000010,
[INFO] [stdout] ...  |
[INFO] [stdout] 11 | |     }
[INFO] [stdout] 12 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `bitflags` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/castling.rs:5:1
[INFO] [stdout]    |
[INFO] [stdout] 5  | / bitflags! {
[INFO] [stdout] 6  | |     pub flags CastlingFlags: u8 {
[INFO] [stdout] 7  | |         const WHITE_QUEENSIDE = 0b0000001,
[INFO] [stdout] 8  | |         const WHITE_KINGSIDE  = 0b0000010,
[INFO] [stdout] ...  |
[INFO] [stdout] 11 | |     }
[INFO] [stdout] 12 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `bitflags` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/bit_boards.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | / lazy_static! {
[INFO] [stdout] 11 | |     pub static ref FILE_BOARDS: [BitBoard; 8] = {
[INFO] [stdout] 12 | |         let mut file_boards = [0x101010101010101 as BitBoard; 8];
[INFO] [stdout] 13 | |
[INFO] [stdout] ...  |
[INFO] [stdout] 28 | |     };
[INFO] [stdout] 29 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/bit_boards.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | / lazy_static! {
[INFO] [stdout] 11 | |     pub static ref FILE_BOARDS: [BitBoard; 8] = {
[INFO] [stdout] 12 | |         let mut file_boards = [0x101010101010101 as BitBoard; 8];
[INFO] [stdout] 13 | |
[INFO] [stdout] ...  |
[INFO] [stdout] 28 | |     };
[INFO] [stdout] 29 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/bit_boards.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | / lazy_static! {
[INFO] [stdout] 11 | |     pub static ref FILE_BOARDS: [BitBoard; 8] = {
[INFO] [stdout] 12 | |         let mut file_boards = [0x101010101010101 as BitBoard; 8];
[INFO] [stdout] 13 | |
[INFO] [stdout] ...  |
[INFO] [stdout] 28 | |     };
[INFO] [stdout] 29 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/bit_boards.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | / lazy_static! {
[INFO] [stdout] 11 | |     pub static ref FILE_BOARDS: [BitBoard; 8] = {
[INFO] [stdout] 12 | |         let mut file_boards = [0x101010101010101 as BitBoard; 8];
[INFO] [stdout] 13 | |
[INFO] [stdout] ...  |
[INFO] [stdout] 28 | |     };
[INFO] [stdout] 29 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/move_gen.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | / lazy_static! {
[INFO] [stdout] 14 | |     pub static ref KING_DIRECTIONS: [Direction; 8] = {
[INFO] [stdout] 15 | |         [
[INFO] [stdout] 16 | |             NORTH,
[INFO] [stdout] ...  |
[INFO] [stdout] 37 | |     };
[INFO] [stdout] 38 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/move_gen.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | / lazy_static! {
[INFO] [stdout] 14 | |     pub static ref KING_DIRECTIONS: [Direction; 8] = {
[INFO] [stdout] 15 | |         [
[INFO] [stdout] 16 | |             NORTH,
[INFO] [stdout] ...  |
[INFO] [stdout] 37 | |     };
[INFO] [stdout] 38 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/move_gen.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | / lazy_static! {
[INFO] [stdout] 14 | |     pub static ref KING_DIRECTIONS: [Direction; 8] = {
[INFO] [stdout] 15 | |         [
[INFO] [stdout] 16 | |             NORTH,
[INFO] [stdout] ...  |
[INFO] [stdout] 37 | |     };
[INFO] [stdout] 38 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/move_gen.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | / lazy_static! {
[INFO] [stdout] 14 | |     pub static ref KING_DIRECTIONS: [Direction; 8] = {
[INFO] [stdout] 15 | |         [
[INFO] [stdout] 16 | |             NORTH,
[INFO] [stdout] ...  |
[INFO] [stdout] 37 | |     };
[INFO] [stdout] 38 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(try_from)]
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `try_from` has been stable since 1.34.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(try_from)]
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error_types.rs:20:32
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout]    |                                ^^^^^
[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]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn cause(&self) -> Option<&dyn Error> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error_types.rs:70:32
[INFO] [stdout]    |
[INFO] [stdout] 70 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout]    |                                ^^^^^
[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] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 70 |     fn cause(&self) -> Option<&dyn Error> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0046]: not all trait items implemented, missing: `Error`
[INFO] [stdout]   --> src/square_position.rs:36:1
[INFO] [stdout]    |
[INFO] [stdout] 36 | impl TryFrom<i32> for SquarePosition {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ missing `Error` in implementation
[INFO] [stdout]    |
[INFO] [stdout]    = help: implement the missing item: `type Error = Type;`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0046]: not all trait items implemented, missing: `Error`
[INFO] [stdout]   --> src/square_position.rs:53:1
[INFO] [stdout]    |
[INFO] [stdout] 53 | impl TryFrom<usize> for SquarePosition {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ missing `Error` in implementation
[INFO] [stdout]    |
[INFO] [stdout]    = help: implement the missing item: `type Error = Type;`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error_types.rs:65:64
[INFO] [stdout]    |
[INFO] [stdout] 65 |             FromFenError::MalformedStringField(ref err) => err.description(),
[INFO] [stdout]    |                                                                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error_types.rs:66:62
[INFO] [stdout]    |
[INFO] [stdout] 66 |             FromFenError::IntFieldParseError(ref err) => err.description(),
[INFO] [stdout]    |                                                              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error_types.rs:73:73
[INFO] [stdout]    |
[INFO] [stdout] 73 |             FromFenError::MalformedStringField(ref err) => Some(err as &Error),
[INFO] [stdout]    |                                                                         ^^^^^
[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] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 73 |             FromFenError::MalformedStringField(ref err) => Some(err as &dyn Error),
[INFO] [stdout]    |                                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error_types.rs:74:71
[INFO] [stdout]    |
[INFO] [stdout] 74 |             FromFenError::IntFieldParseError(ref err) => Some(err as &Error),
[INFO] [stdout]    |                                                                       ^^^^^
[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] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 74 |             FromFenError::IntFieldParseError(ref err) => Some(err as &dyn Error),
[INFO] [stdout]    |                                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 7 previous errors; 33 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0046, E0437, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0046`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `boknafisk` due to 8 previous errors; 33 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "cd63fa3c6676a0cb5862aae6e8ae019dcf270833b9dc962b9f38b1a50397de3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd63fa3c6676a0cb5862aae6e8ae019dcf270833b9dc962b9f38b1a50397de3b", kill_on_drop: false }`
[INFO] [stdout] cd63fa3c6676a0cb5862aae6e8ae019dcf270833b9dc962b9f38b1a50397de3b
