[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 master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsteinsag%2Frust-connect4" "/workspace/builds/worker-11/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/steinsag/rust-connect4 on toolchain 62efba8a050c64249dab942951bb28f710208bc8 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [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-11/source/Cargo.toml [INFO] crate git repo https://github.com/steinsag/rust-connect4 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+62efba8a050c64249dab942951bb28f710208bc8" "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] f6118af5cc1da381991e82c84f683a0546b7c41379ff6907682500ae6db76a0d [INFO] running `Command { std: "docker" "start" "-a" "f6118af5cc1da381991e82c84f683a0546b7c41379ff6907682500ae6db76a0d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f6118af5cc1da381991e82c84f683a0546b7c41379ff6907682500ae6db76a0d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f6118af5cc1da381991e82c84f683a0546b7c41379ff6907682500ae6db76a0d", kill_on_drop: false }` [INFO] [stdout] f6118af5cc1da381991e82c84f683a0546b7c41379ff6907682500ae6db76a0d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0d7f72e9ed06d8dc2406d875f07c8abac9dc1dfb04b9343b92da2954873311c5 [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" "0d7f72e9ed06d8dc2406d875f07c8abac9dc1dfb04b9343b92da2954873311c5", 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 is never read: `pushed_columns` [INFO] [stdout] --> src/strategy/back_propagation.rs:5:5 [INFO] [stdout] | [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: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 8.87s [INFO] running `Command { std: "docker" "inspect" "0d7f72e9ed06d8dc2406d875f07c8abac9dc1dfb04b9343b92da2954873311c5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0d7f72e9ed06d8dc2406d875f07c8abac9dc1dfb04b9343b92da2954873311c5", kill_on_drop: false }` [INFO] [stdout] 0d7f72e9ed06d8dc2406d875f07c8abac9dc1dfb04b9343b92da2954873311c5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", 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] a07a254d74967be05afccb4b8f1cc5cb0c51093801fb0d9574356fa5b3ea3281 [INFO] running `Command { std: "docker" "start" "-a" "a07a254d74967be05afccb4b8f1cc5cb0c51093801fb0d9574356fa5b3ea3281", 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 is never read: `pushed_columns` [INFO] [stdout] --> src/strategy/back_propagation.rs:5:5 [INFO] [stdout] | [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: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.52s [INFO] running `Command { std: "docker" "inspect" "a07a254d74967be05afccb4b8f1cc5cb0c51093801fb0d9574356fa5b3ea3281", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a07a254d74967be05afccb4b8f1cc5cb0c51093801fb0d9574356fa5b3ea3281", kill_on_drop: false }` [INFO] [stdout] a07a254d74967be05afccb4b8f1cc5cb0c51093801fb0d9574356fa5b3ea3281 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 669f1707d1f17e8a32a4f105cf913d989f1cd24faac886a932c23b5951163e36 [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" "669f1707d1f17e8a32a4f105cf913d989f1cd24faac886a932c23b5951163e36", 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 is never read: `pushed_columns` [INFO] [stderr] --> src/strategy/back_propagation.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | pushed_columns: Vec, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `connect4` (bin "connect4" test) generated 4 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stdout] [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/connect4-1bba0f0e66fefb21) [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" "669f1707d1f17e8a32a4f105cf913d989f1cd24faac886a932c23b5951163e36", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "669f1707d1f17e8a32a4f105cf913d989f1cd24faac886a932c23b5951163e36", kill_on_drop: false }` [INFO] [stdout] 669f1707d1f17e8a32a4f105cf913d989f1cd24faac886a932c23b5951163e36