[INFO] cloning repository https://github.com/sunjay/connect4 [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sunjay/connect4" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsunjay%2Fconnect4", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsunjay%2Fconnect4'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 383eafb4ded5c4d4639b794f1e9b0dd90a2709e5 [INFO] testing sunjay/connect4 against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsunjay%2Fconnect4" "/workspace/builds/worker-14/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/sunjay/connect4 on toolchain b70888601af92f6cdc0364abab3446e418b91d36 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/sunjay/connect4 [INFO] finished tweaking git repo https://github.com/sunjay/connect4 [INFO] tweaked toml for git repo https://github.com/sunjay/connect4 written to /workspace/builds/worker-14/source/Cargo.toml [INFO] crate git repo https://github.com/sunjay/connect4 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] d7ada2d113c853e5657189511521eaaad9828bc2d37f0baf4179e5e6e127634e [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" "d7ada2d113c853e5657189511521eaaad9828bc2d37f0baf4179e5e6e127634e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d7ada2d113c853e5657189511521eaaad9828bc2d37f0baf4179e5e6e127634e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d7ada2d113c853e5657189511521eaaad9828bc2d37f0baf4179e5e6e127634e", kill_on_drop: false }` [INFO] [stdout] d7ada2d113c853e5657189511521eaaad9828bc2d37f0baf4179e5e6e127634e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] af9c90bfbb1d061f6c38f19354fbc3d3b86101caa6bdf005b2b20b1b94b5b399 [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" "af9c90bfbb1d061f6c38f19354fbc3d3b86101caa6bdf005b2b20b1b94b5b399", kill_on_drop: false }` [INFO] [stderr] Compiling ansi_term v0.9.0 [INFO] [stderr] Compiling connect4 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021. [INFO] [stdout] --> src/connect4.rs:126:58 [INFO] [stdout] | [INFO] [stdout] 126 | for (i, dir) in [N, NE, E, SE, S, SW, W, NW].into_iter().enumerate() { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(array_into_iter)]` on by default [INFO] [stdout] = warning: this changes meaning in Rust 2021 [INFO] [stdout] = note: for more information, see issue #66145 [INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity [INFO] [stdout] | [INFO] [stdout] 126 | for (i, dir) in [N, NE, E, SE, S, SW, W, NW].iter().enumerate() { [INFO] [stdout] | ^^^^ [INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value [INFO] [stdout] | [INFO] [stdout] 126 | for (i, dir) in IntoIterator::into_iter([N, NE, E, SE, S, SW, W, NW]).enumerate() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021. [INFO] [stdout] --> src/connect4.rs:133:33 [INFO] [stdout] | [INFO] [stdout] 133 | for found in directions.into_iter() { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2021 [INFO] [stdout] = note: for more information, see issue #66145 [INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity [INFO] [stdout] | [INFO] [stdout] 133 | for found in directions.iter() { [INFO] [stdout] | ^^^^ [INFO] [stdout] help: or remove `.into_iter()` to iterate by value [INFO] [stdout] | [INFO] [stdout] 133 | for found in directions { [INFO] [stdout] | -- [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021. [INFO] [stdout] --> src/main.rs:71:62 [INFO] [stdout] | [INFO] [stdout] 71 | println!("\n{} \n", ["A", "B", "C", "D", "E", "F", "G"].into_iter().fold(String::new(), |acc, s| { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2021 [INFO] [stdout] = note: for more information, see issue #66145 [INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity [INFO] [stdout] | [INFO] [stdout] 71 | println!("\n{} \n", ["A", "B", "C", "D", "E", "F", "G"].iter().fold(String::new(), |acc, s| { [INFO] [stdout] | ^^^^ [INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value [INFO] [stdout] | [INFO] [stdout] 71 | println!("\n{} \n", IntoIterator::into_iter(["A", "B", "C", "D", "E", "F", "G"]).fold(String::new(), |acc, s| { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.99s [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "af9c90bfbb1d061f6c38f19354fbc3d3b86101caa6bdf005b2b20b1b94b5b399", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "af9c90bfbb1d061f6c38f19354fbc3d3b86101caa6bdf005b2b20b1b94b5b399", kill_on_drop: false }` [INFO] [stdout] af9c90bfbb1d061f6c38f19354fbc3d3b86101caa6bdf005b2b20b1b94b5b399 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c897c985a432a90222e92ac5c72768cfc69a1eb6fc6cafe28684eedec698aee9 [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" "c897c985a432a90222e92ac5c72768cfc69a1eb6fc6cafe28684eedec698aee9", kill_on_drop: false }` [INFO] [stderr] Compiling connect4 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021. [INFO] [stdout] --> src/connect4.rs:126:58 [INFO] [stdout] | [INFO] [stdout] 126 | for (i, dir) in [N, NE, E, SE, S, SW, W, NW].into_iter().enumerate() { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(array_into_iter)]` on by default [INFO] [stdout] = warning: this changes meaning in Rust 2021 [INFO] [stdout] = note: for more information, see issue #66145 [INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity [INFO] [stdout] | [INFO] [stdout] 126 | for (i, dir) in [N, NE, E, SE, S, SW, W, NW].iter().enumerate() { [INFO] [stdout] | ^^^^ [INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value [INFO] [stdout] | [INFO] [stdout] 126 | for (i, dir) in IntoIterator::into_iter([N, NE, E, SE, S, SW, W, NW]).enumerate() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021. [INFO] [stdout] --> src/connect4.rs:133:33 [INFO] [stdout] | [INFO] [stdout] 133 | for found in directions.into_iter() { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2021 [INFO] [stdout] = note: for more information, see issue #66145 [INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity [INFO] [stdout] | [INFO] [stdout] 133 | for found in directions.iter() { [INFO] [stdout] | ^^^^ [INFO] [stdout] help: or remove `.into_iter()` to iterate by value [INFO] [stdout] | [INFO] [stdout] 133 | for found in directions { [INFO] [stdout] | -- [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021. [INFO] [stdout] --> src/main.rs:71:62 [INFO] [stdout] | [INFO] [stdout] 71 | println!("\n{} \n", ["A", "B", "C", "D", "E", "F", "G"].into_iter().fold(String::new(), |acc, s| { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2021 [INFO] [stdout] = note: for more information, see issue #66145 [INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity [INFO] [stdout] | [INFO] [stdout] 71 | println!("\n{} \n", ["A", "B", "C", "D", "E", "F", "G"].iter().fold(String::new(), |acc, s| { [INFO] [stdout] | ^^^^ [INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value [INFO] [stdout] | [INFO] [stdout] 71 | println!("\n{} \n", IntoIterator::into_iter(["A", "B", "C", "D", "E", "F", "G"]).fold(String::new(), |acc, s| { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.65s [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "c897c985a432a90222e92ac5c72768cfc69a1eb6fc6cafe28684eedec698aee9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c897c985a432a90222e92ac5c72768cfc69a1eb6fc6cafe28684eedec698aee9", kill_on_drop: false }` [INFO] [stdout] c897c985a432a90222e92ac5c72768cfc69a1eb6fc6cafe28684eedec698aee9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 23a4670c3d70cff627fc7ff0cc4e7be3e966e6b462b33be97f721889df29dfd6 [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" "23a4670c3d70cff627fc7ff0cc4e7be3e966e6b462b33be97f721889df29dfd6", kill_on_drop: false }` [INFO] [stdout] [INFO] [stderr] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021. [INFO] [stdout] running 0 tests [INFO] [stderr] --> src/connect4.rs:126:58 [INFO] [stdout] [INFO] [stderr] | [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stderr] 126 | for (i, dir) in [N, NE, E, SE, S, SW, W, NW].into_iter().enumerate() { [INFO] [stdout] [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(array_into_iter)]` on by default [INFO] [stderr] = warning: this changes meaning in Rust 2021 [INFO] [stderr] = note: for more information, see issue #66145 [INFO] [stderr] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity [INFO] [stderr] | [INFO] [stderr] 126 | for (i, dir) in [N, NE, E, SE, S, SW, W, NW].iter().enumerate() { [INFO] [stderr] | ^^^^ [INFO] [stderr] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value [INFO] [stderr] | [INFO] [stderr] 126 | for (i, dir) in IntoIterator::into_iter([N, NE, E, SE, S, SW, W, NW]).enumerate() { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ ^ [INFO] [stderr] [INFO] [stderr] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021. [INFO] [stderr] --> src/connect4.rs:133:33 [INFO] [stderr] | [INFO] [stderr] 133 | for found in directions.into_iter() { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = warning: this changes meaning in Rust 2021 [INFO] [stderr] = note: for more information, see issue #66145 [INFO] [stderr] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity [INFO] [stderr] | [INFO] [stderr] 133 | for found in directions.iter() { [INFO] [stderr] | ^^^^ [INFO] [stderr] help: or remove `.into_iter()` to iterate by value [INFO] [stderr] | [INFO] [stderr] 133 | for found in directions { [INFO] [stderr] | -- [INFO] [stderr] [INFO] [stderr] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021. [INFO] [stderr] --> src/main.rs:71:62 [INFO] [stderr] | [INFO] [stderr] 71 | println!("\n{} \n", ["A", "B", "C", "D", "E", "F", "G"].into_iter().fold(String::new(), |acc, s| { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = warning: this changes meaning in Rust 2021 [INFO] [stderr] = note: for more information, see issue #66145 [INFO] [stderr] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity [INFO] [stderr] | [INFO] [stderr] 71 | println!("\n{} \n", ["A", "B", "C", "D", "E", "F", "G"].iter().fold(String::new(), |acc, s| { [INFO] [stderr] | ^^^^ [INFO] [stderr] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value [INFO] [stderr] | [INFO] [stderr] 71 | println!("\n{} \n", IntoIterator::into_iter(["A", "B", "C", "D", "E", "F", "G"]).fold(String::new(), |acc, s| { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ ^ [INFO] [stderr] [INFO] [stderr] warning: `connect4` (bin "connect4" test) generated 3 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/connect4-6db329879148a344) [INFO] running `Command { std: "docker" "inspect" "23a4670c3d70cff627fc7ff0cc4e7be3e966e6b462b33be97f721889df29dfd6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "23a4670c3d70cff627fc7ff0cc4e7be3e966e6b462b33be97f721889df29dfd6", kill_on_drop: false }` [INFO] [stdout] 23a4670c3d70cff627fc7ff0cc4e7be3e966e6b462b33be97f721889df29dfd6