[INFO] cloning repository https://github.com/dplusic/leetcode-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dplusic/leetcode-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdplusic%2Fleetcode-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdplusic%2Fleetcode-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ba80fd1fbe4936accdaf8644b075bd28983661ef
[INFO] testing dplusic/leetcode-rust against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdplusic%2Fleetcode-rust" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dplusic/leetcode-rust on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dplusic/leetcode-rust
[INFO] finished tweaking git repo https://github.com/dplusic/leetcode-rust
[INFO] tweaked toml for git repo https://github.com/dplusic/leetcode-rust written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/dplusic/leetcode-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 833f45f608b385e3f8d6ee419ad9ec4f286e2b1f8cbda32b0eaad20425fa2417
[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" "833f45f608b385e3f8d6ee419ad9ec4f286e2b1f8cbda32b0eaad20425fa2417", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "833f45f608b385e3f8d6ee419ad9ec4f286e2b1f8cbda32b0eaad20425fa2417", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "833f45f608b385e3f8d6ee419ad9ec4f286e2b1f8cbda32b0eaad20425fa2417", kill_on_drop: false }`
[INFO] [stdout] 833f45f608b385e3f8d6ee419ad9ec4f286e2b1f8cbda32b0eaad20425fa2417
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--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] 08188077688e3df482bfb51908005d673c880adea91ea50303e6640f65afc46d
[INFO] running `Command { std: "docker" "start" "-a" "08188077688e3df482bfb51908005d673c880adea91ea50303e6640f65afc46d", kill_on_drop: false }`
[INFO] [stderr]    Compiling leetcode-rust 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/n0679_24_game.rs:25:75
[INFO] [stdout]    |
[INFO] [stdout] 25 |                 for operator_placement in OPERATOR_PLACEMENT_COMBINATIONS.into_iter() {
[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 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]    |
[INFO] [stdout] 25 |                 for operator_placement in OPERATOR_PLACEMENT_COMBINATIONS.iter() {
[INFO] [stdout]    |                                                                           ^^^^
[INFO] [stdout] help: or remove `.into_iter()` to iterate by value
[INFO] [stdout]    |
[INFO] [stdout] 25 |                 for operator_placement in OPERATOR_PLACEMENT_COMBINATIONS {
[INFO] [stdout]    |                                                                         --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.02s
[INFO] running `Command { std: "docker" "inspect" "08188077688e3df482bfb51908005d673c880adea91ea50303e6640f65afc46d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08188077688e3df482bfb51908005d673c880adea91ea50303e6640f65afc46d", kill_on_drop: false }`
[INFO] [stdout] 08188077688e3df482bfb51908005d673c880adea91ea50303e6640f65afc46d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1b2fc56c418fadddc5abbc7a6e6145ba44ca9a625e4bed131b9701f413c63bfc
[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" "1b2fc56c418fadddc5abbc7a6e6145ba44ca9a625e4bed131b9701f413c63bfc", kill_on_drop: false }`
[INFO] [stderr]    Compiling leetcode-rust 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/n0679_24_game.rs:25:75
[INFO] [stdout]    |
[INFO] [stdout] 25 |                 for operator_placement in OPERATOR_PLACEMENT_COMBINATIONS.into_iter() {
[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 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]    |
[INFO] [stdout] 25 |                 for operator_placement in OPERATOR_PLACEMENT_COMBINATIONS.iter() {
[INFO] [stdout]    |                                                                           ^^^^
[INFO] [stdout] help: or remove `.into_iter()` to iterate by value
[INFO] [stdout]    |
[INFO] [stdout] 25 |                 for operator_placement in OPERATOR_PLACEMENT_COMBINATIONS {
[INFO] [stdout]    |                                                                         --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.04s
[INFO] running `Command { std: "docker" "inspect" "1b2fc56c418fadddc5abbc7a6e6145ba44ca9a625e4bed131b9701f413c63bfc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b2fc56c418fadddc5abbc7a6e6145ba44ca9a625e4bed131b9701f413c63bfc", kill_on_drop: false }`
[INFO] [stdout] 1b2fc56c418fadddc5abbc7a6e6145ba44ca9a625e4bed131b9701f413c63bfc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b44eff398694bafb4262dbaa1cc5c331cbe8380ea5e71a4c64bc53cbefde4988
[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" "b44eff398694bafb4262dbaa1cc5c331cbe8380ea5e71a4c64bc53cbefde4988", kill_on_drop: false }`
[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/n0679_24_game.rs:25:75
[INFO] [stderr]    |
[INFO] [stderr] 25 |                 for operator_placement in OPERATOR_PLACEMENT_COMBINATIONS.into_iter() {
[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 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stderr] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stderr]    |
[INFO] [stderr] 25 |                 for operator_placement in OPERATOR_PLACEMENT_COMBINATIONS.iter() {
[INFO] [stderr]    |                                                                           ^^^^
[INFO] [stderr] help: or remove `.into_iter()` to iterate by value
[INFO] [stderr]    |
[INFO] [stderr] 25 |                 for operator_placement in OPERATOR_PLACEMENT_COMBINATIONS {
[INFO] [stderr]    |                                                                         --
[INFO] [stderr] 
[INFO] [stderr] warning: `leetcode-rust` (bin "leetcode-rust" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/leetcode_rust-d7a3ae6afe0a982e)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test n0679_24_game::test_permutator ... ok
[INFO] [stdout] test n0731_my_calendar_ii::test_book_intersected_1 ... ok
[INFO] [stdout] test n0731_my_calendar_ii::test_book_intersected_2 ... ok
[INFO] [stdout] test n0731_my_calendar_ii::test_book_intersected_3 ... ok
[INFO] [stdout] test n0731_my_calendar_ii::test_book_intersected_4 ... ok
[INFO] [stdout] test n0731_my_calendar_ii::test_book_intersected_5 ... ok
[INFO] [stdout] test n0731_my_calendar_ii::test_book_intersected_6 ... ok
[INFO] [stdout] test n0679_24_game::test_permutator_with_repetition ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b44eff398694bafb4262dbaa1cc5c331cbe8380ea5e71a4c64bc53cbefde4988", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b44eff398694bafb4262dbaa1cc5c331cbe8380ea5e71a4c64bc53cbefde4988", kill_on_drop: false }`
[INFO] [stdout] b44eff398694bafb4262dbaa1cc5c331cbe8380ea5e71a4c64bc53cbefde4988