[INFO] cloning repository https://github.com/AI1411/rust-playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AI1411/rust-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAI1411%2Frust-playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAI1411%2Frust-playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1f5cdea0cd7d1e18d2307e9b222e89b3eacda4b0
[INFO] testing AI1411/rust-playground against master#733b47ea4b1b86216f14ef56e49440c33933f230+rustflags=-Copt-level=3 for pr-138759
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAI1411%2Frust-playground" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/AI1411/rust-playground
[INFO] finished tweaking git repo https://github.com/AI1411/rust-playground
[INFO] tweaked toml for git repo https://github.com/AI1411/rust-playground written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/AI1411/rust-playground on toolchain 733b47ea4b1b86216f14ef56e49440c33933f230
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/AI1411/rust-playground 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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e046c0b6329f1ac7d7339af79b9a75097b8807301c6f7fc37a131decbbfdf207
[INFO] running `Command { std: "docker" "start" "-a" "e046c0b6329f1ac7d7339af79b9a75097b8807301c6f7fc37a131decbbfdf207", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e046c0b6329f1ac7d7339af79b9a75097b8807301c6f7fc37a131decbbfdf207", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e046c0b6329f1ac7d7339af79b9a75097b8807301c6f7fc37a131decbbfdf207", kill_on_drop: false }`
[INFO] [stdout] e046c0b6329f1ac7d7339af79b9a75097b8807301c6f7fc37a131decbbfdf207
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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 -Copt-level=3" "-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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] be614ad3f3f35d6dc142803d08de50254c5c829bdc08082181746f0e9d3a49e6
[INFO] running `Command { std: "docker" "start" "-a" "be614ad3f3f35d6dc142803d08de50254c5c829bdc08082181746f0e9d3a49e6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.125
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling getrandom v0.2.6
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling train v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `binary_search_rec` is never used
[INFO] [stdout]  --> src/searching/binary_search_recursive.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn binary_search_rec<T: Ord>(
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.54s
[INFO] running `Command { std: "docker" "inspect" "be614ad3f3f35d6dc142803d08de50254c5c829bdc08082181746f0e9d3a49e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be614ad3f3f35d6dc142803d08de50254c5c829bdc08082181746f0e9d3a49e6", kill_on_drop: false }`
[INFO] [stdout] be614ad3f3f35d6dc142803d08de50254c5c829bdc08082181746f0e9d3a49e6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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 -Copt-level=3" "-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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4a29467c9c24b0ee4fdf776abe984caba866eda9d533393ce9bdd08e4da02c9a
[INFO] running `Command { std: "docker" "start" "-a" "4a29467c9c24b0ee4fdf776abe984caba866eda9d533393ce9bdd08e4da02c9a", kill_on_drop: false }`
[INFO] [stdout] warning: function `binary_search_rec` is never used
[INFO] [stdout]  --> src/searching/binary_search_recursive.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn binary_search_rec<T: Ord>(
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling train v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.12s
[INFO] running `Command { std: "docker" "inspect" "4a29467c9c24b0ee4fdf776abe984caba866eda9d533393ce9bdd08e4da02c9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a29467c9c24b0ee4fdf776abe984caba866eda9d533393ce9bdd08e4da02c9a", kill_on_drop: false }`
[INFO] [stdout] 4a29467c9c24b0ee4fdf776abe984caba866eda9d533393ce9bdd08e4da02c9a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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 -Copt-level=3" "-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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] db997433cd450ee81028caa7bb31ad940dd696fa0a6ca1c67a966c012aa2f796
[INFO] running `Command { std: "docker" "start" "-a" "db997433cd450ee81028caa7bb31ad940dd696fa0a6ca1c67a966c012aa2f796", kill_on_drop: false }`
[INFO] [stderr] warning: function `binary_search_rec` is never used
[INFO] [stderr]  --> src/searching/binary_search_recursive.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn binary_search_rec<T: Ord>(
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `train` (lib) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/train-0e1251194454a188)
[INFO] [stdout] 
[INFO] [stdout] running 70 tests
[INFO] [stdout] test searching::binary_search::tests::one_item ... ok
[INFO] [stdout] test searching::binary_search_recursive::tests::fail_search_integers ... ok
[INFO] [stdout] test searching::binary_search_recursive::tests::success_search_integers ... ok
[INFO] [stdout] test searching::binary_search::tests::empty ... ok
[INFO] [stdout] test searching::binary_search_recursive::tests::success_one_item ... ok
[INFO] [stdout] test searching::binary_search_recursive::tests::success_search_integer_in_middle_of_unsorted_list ... ok
[INFO] [stdout] test searching::binary_search_recursive::tests::success_search_string_in_middle_of_unsorted_list ... ok
[INFO] [stdout] test searching::binary_search_recursive::tests::fail_empty_list ... ok
[INFO] [stdout] test searching::binary_search_recursive::tests::success_search_strings ... ok
[INFO] [stdout] test searching::binary_search_recursive::tests::fail_search_unsorted_strings_list ... ok
[INFO] [stdout] test sorting::cocktail_shaker_sort::tests::empty ... ok
[INFO] [stdout] test sorting::comb_sort::tests::descending ... ok
[INFO] [stdout] test sorting::counting_sort::tests::counting_sort_descending ... ok
[INFO] [stdout] test sorting::counting_sort::tests::counting_sort_pre_sorted ... ok
[INFO] [stdout] test sorting::counting_sort::tests::generic_counting_sort ... ok
[INFO] [stdout] test sorting::counting_sort::tests::presorted_u64_counting_sort ... ok
[INFO] [stdout] test sorting::cycle_sort::tests::it_works ... ok
[INFO] [stdout] test sorting::exchange_sort::tests::it_works ... ok
[INFO] [stdout] test sorting::bubble_sort::tests::descending ... ok
[INFO] [stdout] test sorting::cocktail_shaker_sort::tests::basic ... ok
[INFO] [stdout] test sorting::cocktail_shaker_sort::tests::pre_sorted ... ok
[INFO] [stdout] test searching::binary_search_recursive::tests::fail_search_unsorted_integers_list ... ok
[INFO] [stdout] test sorting::bubble_sort::tests::ascending ... ok
[INFO] [stdout] test sorting::gnome_sort::tests::basic ... ok
[INFO] [stdout] test sorting::heap_sort::tests::repeated_element ... ok
[INFO] [stdout] test sorting::heap_sort::tests::single_element ... ok
[INFO] [stdout] test sorting::heap_sort::tests::sorted_array ... ok
[INFO] [stdout] test sorting::heap_sort::tests::unsorted_array ... ok
[INFO] [stdout] test sorting::insertion_sort::tests::already_sorted ... ok
[INFO] [stdout] test sorting::insertion_sort::tests::basic ... ok
[INFO] [stdout] test sorting::gnome_sort::tests::already_sorted ... ok
[INFO] [stdout] test searching::binary_search_recursive::tests::fail_search_strings ... ok
[INFO] [stdout] test sorting::gnome_sort::tests::empty ... ok
[INFO] [stdout] test sorting::gnome_sort::tests::odd_number_of_element ... ok
[INFO] [stdout] test sorting::gnome_sort::tests::one_element ... ok
[INFO] [stdout] test sorting::heap_sort::tests::empty ... ok
[INFO] [stdout] test sorting::comb_sort::tests::ascending ... ok
[INFO] [stdout] test sorting::heap_sort::tests::odd_number_of_element ... ok
[INFO] [stdout] test sorting::cocktail_shaker_sort::tests::one_element ... ok
[INFO] [stdout] test sorting::insertion_sort::tests::empty ... ok
[INFO] [stdout] test sorting::odd_even_sort::tests::basic ... ok
[INFO] [stdout] test sorting::insertion_sort::tests::one_element ... ok
[INFO] [stdout] test sorting::insertion_sort::tests::repeated_elements ... ok
[INFO] [stdout] test sorting::merge_sort::tests::basic ... ok
[INFO] [stdout] test sorting::merge_sort::tests::basic_string ... ok
[INFO] [stdout] test sorting::insertion_sort::tests::odd_number_of_elements ... ok
[INFO] [stdout] test sorting::odd_even_sort::tests::empty ... ok
[INFO] [stdout] test sorting::merge_sort::tests::one_element ... ok
[INFO] [stdout] test sorting::merge_sort::tests::reverse_sorted ... ok
[INFO] [stdout] test sorting::merge_sort::tests::pre_sorted ... ok
[INFO] [stdout] test sorting::merge_sort::tests::empty ... ok
[INFO] [stdout] test sorting::odd_even_sort::tests::one_element ... ok
[INFO] [stdout] test sorting::odd_even_sort::tests::pre_sorted ... ok
[INFO] [stdout] test sorting::pancake_sort::tests::already_sorted ... ok
[INFO] [stdout] test sorting::pancake_sort::tests::empty ... ok
[INFO] [stdout] test sorting::pancake_sort::tests::one_element ... ok
[INFO] [stdout] test sorting::pancake_sort::tests::basic ... ok
[INFO] [stdout] test sorting::radix_sort::tests::ascending ... ok
[INFO] [stdout] test sorting::radix_sort::tests::descending ... ok
[INFO] [stdout] test sorting::selection_sort::tests::basic ... ok
[INFO] [stdout] test sorting::pancake_sort::tests::odd_number_of_element ... ok
[INFO] [stdout] test sorting::selection_sort::tests::pre_sorted ... ok
[INFO] [stdout] test sorting::selection_sort::tests::one_element ... ok
[INFO] [stdout] test sorting::selection_sort::tests::empty ... ok
[INFO] [stdout] test sorting::odd_even_sort::tests::reverse_sorted ... ok
[INFO] [stdout] test sorting::tests::is_sorted ... ok
[INFO] [stdout] test tests::vec_test ... ok
[INFO] [stdout] test tests::item_test ... ok
[INFO] [stdout] test tests::array_test ... ok
[INFO] [stdout] test sorting::radix_sort::tests::empty ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 70 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/train-e60d84be50366081)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests train
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "db997433cd450ee81028caa7bb31ad940dd696fa0a6ca1c67a966c012aa2f796", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db997433cd450ee81028caa7bb31ad940dd696fa0a6ca1c67a966c012aa2f796", kill_on_drop: false }`
[INFO] [stdout] db997433cd450ee81028caa7bb31ad940dd696fa0a6ca1c67a966c012aa2f796
