[INFO] cloning repository https://github.com/dcts/connect4-cli [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dcts/connect4-cli" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdcts%2Fconnect4-cli", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdcts%2Fconnect4-cli'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 58ea2964abb1ed70b419055def2d6f54cd1abec6 [INFO] checking dcts/connect4-cli against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdcts%2Fconnect4-cli" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/dcts/connect4-cli on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/dcts/connect4-cli [INFO] finished tweaking git repo https://github.com/dcts/connect4-cli [INFO] tweaked toml for git repo https://github.com/dcts/connect4-cli written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/dcts/connect4-cli 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded integer-encoding v3.0.4 [INFO] [stderr] Downloaded rustversion v1.0.8 [INFO] [stderr] Downloaded strum_macros v0.24.2 [INFO] [stderr] Downloaded tungstenite v0.16.0 [INFO] [stderr] Downloaded message-io v0.14.6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] b1dd6653a172a360c23e8210f2d73d7d04418ca3e065be3945db8977efd12ace [INFO] running `Command { std: "docker" "start" "-a" "b1dd6653a172a360c23e8210f2d73d7d04418ca3e065be3945db8977efd12ace", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b1dd6653a172a360c23e8210f2d73d7d04418ca3e065be3945db8977efd12ace", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b1dd6653a172a360c23e8210f2d73d7d04418ca3e065be3945db8977efd12ace", kill_on_drop: false }` [INFO] [stdout] b1dd6653a172a360c23e8210f2d73d7d04418ca3e065be3945db8977efd12ace [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 82dbee71e95c43e80cfa19e84c881ce353aad39348663c0d34a5b5781533d3c0 [INFO] running `Command { std: "docker" "start" "-a" "82dbee71e95c43e80cfa19e84c881ce353aad39348663c0d34a5b5781533d3c0", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.126 [INFO] [stderr] Compiling syn v1.0.98 [INFO] [stderr] Compiling rustversion v1.0.8 [INFO] [stderr] Checking ppv-lite86 v0.2.16 [INFO] [stderr] Checking once_cell v1.13.0 [INFO] [stderr] Compiling httparse v1.7.1 [INFO] [stderr] Compiling serde_derive v1.0.139 [INFO] [stderr] Compiling generic-array v0.14.5 [INFO] [stderr] Compiling crossbeam-utils v0.8.10 [INFO] [stderr] Checking typenum v1.15.0 [INFO] [stderr] Checking bytes v1.1.0 [INFO] [stderr] Compiling serde v1.0.139 [INFO] [stderr] Compiling heck v0.4.0 [INFO] [stderr] Checking itoa v1.0.2 [INFO] [stderr] Checking cpufeatures v0.2.2 [INFO] [stderr] Checking regex-syntax v0.6.27 [INFO] [stderr] Checking integer-encoding v3.0.4 [INFO] [stderr] Checking http v0.2.8 [INFO] [stderr] Checking crossbeam-channel v0.5.5 [INFO] [stderr] Checking getrandom v0.2.7 [INFO] [stderr] Checking mio v0.7.14 [INFO] [stderr] Checking terminal_size v0.1.17 [INFO] [stderr] Checking socket2 v0.3.19 [INFO] [stderr] Checking rand_core v0.6.3 [INFO] [stderr] Checking digest v0.9.0 [INFO] [stderr] Checking block-buffer v0.9.0 [INFO] [stderr] Checking regex v1.6.0 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking sha-1 v0.9.8 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking console v0.15.0 [INFO] [stderr] Compiling thiserror-impl v1.0.31 [INFO] [stderr] Compiling strum_macros v0.24.2 [INFO] [stderr] Checking thiserror v1.0.31 [INFO] [stderr] Checking tungstenite v0.16.0 [INFO] [stderr] Checking strum v0.24.1 [INFO] [stderr] Checking message-io v0.14.6 [INFO] [stderr] Checking connect-4-cli v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `network::server::GameSocket` [INFO] [stdout] --> src/main.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use network::server::GameSocket; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `network::server::GameSocket` [INFO] [stdout] --> src/main.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use network::server::GameSocket; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `endpoint` [INFO] [stdout] --> src/network/server.rs:31:31 [INFO] [stdout] | [INFO] [stdout] 31 | NetEvent::Message(endpoint, data) => callback(data), [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_endpoint` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `data` [INFO] [stdout] --> src/network/server.rs:42:26 [INFO] [stdout] | [INFO] [stdout] 42 | fn send_event(&self, data: &[u8]) -> () { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_data` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `endpoint` [INFO] [stdout] --> src/network/server.rs:31:31 [INFO] [stdout] | [INFO] [stdout] 31 | NetEvent::Message(endpoint, data) => callback(data), [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_endpoint` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `data` [INFO] [stdout] --> src/network/server.rs:42:26 [INFO] [stdout] | [INFO] [stdout] 42 | fn send_event(&self, data: &[u8]) -> () { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_data` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `pieces_dropped` and `last_move` are never read [INFO] [stdout] --> src/board.rs:33:9 [INFO] [stdout] | [INFO] [stdout] 31 | pub struct Board { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] 32 | pub slots: [SlotState; (COLS * ROWS) as usize], // 7 cols * 6 rows [INFO] [stdout] 33 | pub pieces_dropped: usize, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] 34 | pub last_move: Option<(Position, Player)>, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `winner` and `win_path` are never read [INFO] [stdout] --> src/board.rs:217:9 [INFO] [stdout] | [INFO] [stdout] 216 | pub struct WinInfo { [INFO] [stdout] | ------- fields in this struct [INFO] [stdout] 217 | pub winner: Player, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 218 | pub win_path: Vec, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `WinInfo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `GameSocket` is never constructed [INFO] [stdout] --> src/network/server.rs:4:12 [INFO] [stdout] | [INFO] [stdout] 4 | pub struct GameSocket { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `create_socket`, `receive_event`, and `send_event` are never used [INFO] [stdout] --> src/network/server.rs:10:12 [INFO] [stdout] | [INFO] [stdout] 9 | impl GameSocket { [INFO] [stdout] | --------------- associated items in this implementation [INFO] [stdout] 10 | pub fn new( [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 27 | pub fn create_socket(listener: NodeListener<()>, callback: fn(&[u8]) -> ()) { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 36 | fn receive_event(data: &[u8]) -> () { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 42 | fn send_event(&self, data: &[u8]) -> () { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `pieces_dropped` and `last_move` are never read [INFO] [stdout] --> src/board.rs:33:9 [INFO] [stdout] | [INFO] [stdout] 31 | pub struct Board { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] 32 | pub slots: [SlotState; (COLS * ROWS) as usize], // 7 cols * 6 rows [INFO] [stdout] 33 | pub pieces_dropped: usize, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] 34 | pub last_move: Option<(Position, Player)>, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `winner` and `win_path` are never read [INFO] [stdout] --> src/board.rs:217:9 [INFO] [stdout] | [INFO] [stdout] 216 | pub struct WinInfo { [INFO] [stdout] | ------- fields in this struct [INFO] [stdout] 217 | pub winner: Player, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 218 | pub win_path: Vec, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `WinInfo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `GameSocket` is never constructed [INFO] [stdout] --> src/network/server.rs:4:12 [INFO] [stdout] | [INFO] [stdout] 4 | pub struct GameSocket { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `create_socket`, `receive_event`, and `send_event` are never used [INFO] [stdout] --> src/network/server.rs:10:12 [INFO] [stdout] | [INFO] [stdout] 9 | impl GameSocket { [INFO] [stdout] | --------------- associated items in this implementation [INFO] [stdout] 10 | pub fn new( [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 27 | pub fn create_socket(listener: NodeListener<()>, callback: fn(&[u8]) -> ()) { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 36 | fn receive_event(data: &[u8]) -> () { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 42 | fn send_event(&self, data: &[u8]) -> () { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:41:9 [INFO] [stdout] | [INFO] [stdout] 41 | / board.drop_piece( [INFO] [stdout] 42 | | player_move as i8, [INFO] [stdout] 43 | | current_player [INFO] [stdout] 44 | | ); [INFO] [stdout] | |_________^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 41 | let _ = board.drop_piece( [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:41:9 [INFO] [stdout] | [INFO] [stdout] 41 | / board.drop_piece( [INFO] [stdout] 42 | | player_move as i8, [INFO] [stdout] 43 | | current_player [INFO] [stdout] 44 | | ); [INFO] [stdout] | |_________^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 41 | let _ = board.drop_piece( [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.94s [INFO] running `Command { std: "docker" "inspect" "82dbee71e95c43e80cfa19e84c881ce353aad39348663c0d34a5b5781533d3c0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "82dbee71e95c43e80cfa19e84c881ce353aad39348663c0d34a5b5781533d3c0", kill_on_drop: false }` [INFO] [stdout] 82dbee71e95c43e80cfa19e84c881ce353aad39348663c0d34a5b5781533d3c0