[INFO] cloning repository https://github.com/steinsag/rust-connect4 [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/steinsag/rust-connect4" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsteinsag%2Frust-connect4", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsteinsag%2Frust-connect4'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] d9d3f098247097ab3f65e5006b1196bb331e82e7 [INFO] testing steinsag/rust-connect4 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_getrandom_patch_2 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsteinsag%2Frust-connect4" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/steinsag/rust-connect4 [INFO] finished tweaking git repo https://github.com/steinsag/rust-connect4 [INFO] tweaked toml for git repo https://github.com/steinsag/rust-connect4 written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/steinsag/rust-connect4 on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/steinsag/rust-connect4 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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] b3a08b74ad110be707062cec5c91ed4b4d7a548e7783bfa221d0246c9449ed13 [INFO] running `Command { std: "docker" "start" "-a" "b3a08b74ad110be707062cec5c91ed4b4d7a548e7783bfa221d0246c9449ed13", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b3a08b74ad110be707062cec5c91ed4b4d7a548e7783bfa221d0246c9449ed13", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b3a08b74ad110be707062cec5c91ed4b4d7a548e7783bfa221d0246c9449ed13", kill_on_drop: false }` [INFO] [stdout] b3a08b74ad110be707062cec5c91ed4b4d7a548e7783bfa221d0246c9449ed13 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] 9e0a8e39de6d8e5f612fc5a9c2fb955aadfa23c916e58abd04e580700ddc4016 [INFO] running `Command { std: "docker" "start" "-a" "9e0a8e39de6d8e5f612fc5a9c2fb955aadfa23c916e58abd04e580700ddc4016", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.80 [INFO] [stderr] Compiling getrandom v0.1.15 [INFO] [stderr] Compiling ppv-lite86 v0.2.9 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling rand_chacha v0.2.2 [INFO] [stderr] Compiling rand v0.7.3 [INFO] [stderr] Compiling connect4 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `temporary_game_field` [INFO] [stdout] --> src/strategy/back_propagation.rs:18:17 [INFO] [stdout] | [INFO] [stdout] 18 | let mut temporary_game_field = board.clone(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_temporary_game_field` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `col` [INFO] [stdout] --> src/strategy/back_propagation.rs:19:13 [INFO] [stdout] | [INFO] [stdout] 19 | for col in 0..COLS {} [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_col` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/strategy/back_propagation.rs:18:13 [INFO] [stdout] | [INFO] [stdout] 18 | let mut temporary_game_field = board.clone(); [INFO] [stdout] | ----^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `pushed_columns` is never read [INFO] [stdout] --> src/strategy/back_propagation.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 4 | pub struct BackPropagationStrategy { [INFO] [stdout] | ----------------------- field in this struct [INFO] [stdout] 5 | pushed_columns: Vec, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> src/strategy/back_propagation.rs:18:45 [INFO] [stdout] | [INFO] [stdout] 18 | let mut temporary_game_field = board.clone(); [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: the type `Board` does not implement `Clone`, so calling `clone` on `&Board` copies the reference, which does not do anything and can be removed [INFO] [stdout] = note: `#[warn(noop_method_call)]` on by default [INFO] [stdout] help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] 18 - let mut temporary_game_field = board.clone(); [INFO] [stdout] 18 + let mut temporary_game_field = board; [INFO] [stdout] | [INFO] [stdout] help: if you meant to clone `Board`, implement `Clone` for it [INFO] [stdout] --> src/board.rs:22:1 [INFO] [stdout] | [INFO] [stdout] 22 + #[derive(Clone)] [INFO] [stdout] 23 | pub struct Board { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.54s [INFO] running `Command { std: "docker" "inspect" "9e0a8e39de6d8e5f612fc5a9c2fb955aadfa23c916e58abd04e580700ddc4016", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9e0a8e39de6d8e5f612fc5a9c2fb955aadfa23c916e58abd04e580700ddc4016", kill_on_drop: false }` [INFO] [stdout] 9e0a8e39de6d8e5f612fc5a9c2fb955aadfa23c916e58abd04e580700ddc4016 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--no-run" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] eca24c87a14d01ada74c976e4fd252878006c7c08a0ba3043a79288d7b7f6f62 [INFO] running `Command { std: "docker" "start" "-a" "eca24c87a14d01ada74c976e4fd252878006c7c08a0ba3043a79288d7b7f6f62", kill_on_drop: false }` [INFO] [stderr] Compiling connect4 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `temporary_game_field` [INFO] [stdout] --> src/strategy/back_propagation.rs:18:17 [INFO] [stdout] | [INFO] [stdout] 18 | let mut temporary_game_field = board.clone(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_temporary_game_field` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `col` [INFO] [stdout] --> src/strategy/back_propagation.rs:19:13 [INFO] [stdout] | [INFO] [stdout] 19 | for col in 0..COLS {} [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_col` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/strategy/back_propagation.rs:18:13 [INFO] [stdout] | [INFO] [stdout] 18 | let mut temporary_game_field = board.clone(); [INFO] [stdout] | ----^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `pushed_columns` is never read [INFO] [stdout] --> src/strategy/back_propagation.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 4 | pub struct BackPropagationStrategy { [INFO] [stdout] | ----------------------- field in this struct [INFO] [stdout] 5 | pushed_columns: Vec, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> src/strategy/back_propagation.rs:18:45 [INFO] [stdout] | [INFO] [stdout] 18 | let mut temporary_game_field = board.clone(); [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: the type `Board` does not implement `Clone`, so calling `clone` on `&Board` copies the reference, which does not do anything and can be removed [INFO] [stdout] = note: `#[warn(noop_method_call)]` on by default [INFO] [stdout] help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] 18 - let mut temporary_game_field = board.clone(); [INFO] [stdout] 18 + let mut temporary_game_field = board; [INFO] [stdout] | [INFO] [stdout] help: if you meant to clone `Board`, implement `Clone` for it [INFO] [stdout] --> src/board.rs:22:1 [INFO] [stdout] | [INFO] [stdout] 22 + #[derive(Clone)] [INFO] [stdout] 23 | pub struct Board { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.65s [INFO] running `Command { std: "docker" "inspect" "eca24c87a14d01ada74c976e4fd252878006c7c08a0ba3043a79288d7b7f6f62", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "eca24c87a14d01ada74c976e4fd252878006c7c08a0ba3043a79288d7b7f6f62", kill_on_drop: false }` [INFO] [stdout] eca24c87a14d01ada74c976e4fd252878006c7c08a0ba3043a79288d7b7f6f62 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] c4dc3ed51a266255d3cd1e53d7d96c47d100b2a99b7605fac1b1c91801b52d97 [INFO] running `Command { std: "docker" "start" "-a" "c4dc3ed51a266255d3cd1e53d7d96c47d100b2a99b7605fac1b1c91801b52d97", kill_on_drop: false }` [INFO] [stderr] warning: unused variable: `temporary_game_field` [INFO] [stderr] --> src/strategy/back_propagation.rs:18:17 [INFO] [stderr] | [INFO] [stderr] 18 | let mut temporary_game_field = board.clone(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_temporary_game_field` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `col` [INFO] [stderr] --> src/strategy/back_propagation.rs:19:13 [INFO] [stderr] | [INFO] [stderr] 19 | for col in 0..COLS {} [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_col` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/strategy/back_propagation.rs:18:13 [INFO] [stderr] | [INFO] [stderr] 18 | let mut temporary_game_field = board.clone(); [INFO] [stderr] | ----^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: field `pushed_columns` is never read [INFO] [stderr] --> src/strategy/back_propagation.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 4 | pub struct BackPropagationStrategy { [INFO] [stderr] | ----------------------- field in this struct [INFO] [stderr] 5 | pushed_columns: Vec, [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stderr] --> src/strategy/back_propagation.rs:18:45 [INFO] [stderr] | [INFO] [stderr] 18 | let mut temporary_game_field = board.clone(); [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: the type `Board` does not implement `Clone`, so calling `clone` on `&Board` copies the reference, which does not do anything and can be removed [INFO] [stderr] = note: `#[warn(noop_method_call)]` on by default [INFO] [stderr] help: remove this redundant call [INFO] [stderr] | [INFO] [stderr] 18 - let mut temporary_game_field = board.clone(); [INFO] [stderr] 18 + let mut temporary_game_field = board; [INFO] [stderr] | [INFO] [stderr] help: if you meant to clone `Board`, implement `Clone` for it [INFO] [stderr] --> src/board.rs:22:1 [INFO] [stderr] | [INFO] [stderr] 22 + #[derive(Clone)] [INFO] [stderr] 23 | pub struct Board { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: `connect4` (bin "connect4" test) generated 5 warnings (run `cargo fix --bin "connect4" --tests` to apply 2 suggestions) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/connect4-e2aa865da1dea1ca) [INFO] [stdout] [INFO] [stdout] running 3 tests [INFO] [stdout] test board::tests::test_find_lowest_empty_row ... ok [INFO] [stdout] test board::tests::test_from ... ok [INFO] [stdout] test board::tests::test_new ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "c4dc3ed51a266255d3cd1e53d7d96c47d100b2a99b7605fac1b1c91801b52d97", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c4dc3ed51a266255d3cd1e53d7d96c47d100b2a99b7605fac1b1c91801b52d97", kill_on_drop: false }` [INFO] [stdout] c4dc3ed51a266255d3cd1e53d7d96c47d100b2a99b7605fac1b1c91801b52d97