[INFO] cloning repository https://github.com/rogithub/rust-patterns
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rogithub/rust-patterns" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frogithub%2Frust-patterns", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frogithub%2Frust-patterns'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] eb7f8f161633858888b8f829f84ed0ae7da85119
[INFO] testing rogithub/rust-patterns against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frogithub%2Frust-patterns" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rogithub/rust-patterns on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rogithub/rust-patterns
[INFO] finished tweaking git repo https://github.com/rogithub/rust-patterns
[INFO] tweaked toml for git repo https://github.com/rogithub/rust-patterns written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/rogithub/rust-patterns already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b0b410cbc760e1f2daaa2e8608f580f9a77cfc493f94a9a9e72e1ccfd8c33860
[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" "b0b410cbc760e1f2daaa2e8608f580f9a77cfc493f94a9a9e72e1ccfd8c33860", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b0b410cbc760e1f2daaa2e8608f580f9a77cfc493f94a9a9e72e1ccfd8c33860", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0b410cbc760e1f2daaa2e8608f580f9a77cfc493f94a9a9e72e1ccfd8c33860", kill_on_drop: false }`
[INFO] [stdout] b0b410cbc760e1f2daaa2e8608f580f9a77cfc493f94a9a9e72e1ccfd8c33860
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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] bb79ad0434e0013377f0b6adc2f22a5fc9c15a7c7a24e9d4abe5cc831dc8cd8a
[INFO] running `Command { std: "docker" "start" "-a" "bb79ad0434e0013377f0b6adc2f22a5fc9c15a7c7a24e9d4abe5cc831dc8cd8a", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-patterns v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `output`
[INFO] [stdout]  --> src/default_ctr.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     output: Option<PathBuf>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `search_path`
[INFO] [stdout]  --> src/default_ctr.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     search_path: Vec<PathBuf>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `timeout`
[INFO] [stdout]   --> src/default_ctr.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     timeout: Duration,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `check`
[INFO] [stdout]   --> src/default_ctr.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     check: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.88s
[INFO] running `Command { std: "docker" "inspect" "bb79ad0434e0013377f0b6adc2f22a5fc9c15a7c7a24e9d4abe5cc831dc8cd8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb79ad0434e0013377f0b6adc2f22a5fc9c15a7c7a24e9d4abe5cc831dc8cd8a", kill_on_drop: false }`
[INFO] [stdout] bb79ad0434e0013377f0b6adc2f22a5fc9c15a7c7a24e9d4abe5cc831dc8cd8a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 967f623f1e98edd799effe7f05ca4a1c154e113ad0d926a8eaeefbef820e9fcb
[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" "967f623f1e98edd799effe7f05ca4a1c154e113ad0d926a8eaeefbef820e9fcb", kill_on_drop: false }`
[INFO] [stdout] warning: field is never read: `output`
[INFO] [stdout]  --> src/default_ctr.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     output: Option<PathBuf>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rust-patterns v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `search_path`
[INFO] [stdout]  --> src/default_ctr.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     search_path: Vec<PathBuf>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `timeout`
[INFO] [stdout]   --> src/default_ctr.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     timeout: Duration,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `check`
[INFO] [stdout]   --> src/default_ctr.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     check: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `output`
[INFO] [stdout]  --> src/default_ctr.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     output: Option<PathBuf>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `search_path`
[INFO] [stdout]  --> src/default_ctr.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     search_path: Vec<PathBuf>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `timeout`
[INFO] [stdout]   --> src/default_ctr.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     timeout: Duration,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.48s
[INFO] running `Command { std: "docker" "inspect" "967f623f1e98edd799effe7f05ca4a1c154e113ad0d926a8eaeefbef820e9fcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "967f623f1e98edd799effe7f05ca4a1c154e113ad0d926a8eaeefbef820e9fcb", kill_on_drop: false }`
[INFO] [stdout] 967f623f1e98edd799effe7f05ca4a1c154e113ad0d926a8eaeefbef820e9fcb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 97aa831c4cc0e61df805cb209b1246cc8842f8cf429e2f23d95c70563e5bf569
[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" "97aa831c4cc0e61df805cb209b1246cc8842f8cf429e2f23d95c70563e5bf569", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: field is never read: `output`
[INFO] [stdout] running 24 tests
[INFO] [stderr]  --> src/default_ctr.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     output: Option<PathBuf>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `search_path`
[INFO] [stderr]  --> src/default_ctr.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     search_path: Vec<PathBuf>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `timeout`
[INFO] [stderr]   --> src/default_ctr.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     timeout: Duration,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `check`
[INFO] [stderr]   --> src/default_ctr.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     check: bool,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-patterns` (lib) generated 4 warnings
[INFO] [stderr] warning: `rust-patterns` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_patterns-2640403e42d417e5)
[INFO] [stdout] test basics::test::box_implementing_deref_trait ... ok
[INFO] [stdout] test basics::test::calculate_length_without_borrowing_test ... ok
[INFO] [stdout] test basics::test::deref_test_following_ptr_to_the_value ... ok
[INFO] [stdout] test basics::test::referencia_mutable_test ... ok
[INFO] [stdout] test basics::test::calculate_length_borrowing_test ... ok
[INFO] [stdout] test behavioral::command_trait_objects::test::fn_pointers_command_test ... ok
[INFO] [stdout] test behavioral::command_fn_pointers::test::fn_pointers_command_test ... ok
[INFO] [stdout] test behavioral::command_migration_traits::test::migrations_command_test ... ok
[INFO] [stdout] test behavioral::visitor::test::visitor_testing ... ok
[INFO] [stdout] test behavioral::interpreter_euclidean_length::test::interpreter_euclidean_length_tests ... ok
[INFO] [stdout] test behavioral::interpreter::test::interpreter_tests ... ok
[INFO] [stdout] test behavioral::strategy_aka_ioc::test::strategy_ioc_testing ... ok
[INFO] [stdout] test behavioral::strategy_closures::test::strategy_closure_testing ... ok
[INFO] [stdout] test default_ctr::test::word ... ok
[INFO] [stdout] test into_iterator_for_option::test::implementing_into_iterator_allows_extend ... ok
[INFO] [stdout] test into_iterator_for_option::test::options_allows_chain ... ok
[INFO] [stdout] test str_guidelines::test::saludo ... ok
[INFO] [stdout] test str_guidelines::test::word ... ok
[INFO] [stdout] test str_guidelines::test::sentence ... ok
[INFO] [stdout] test change_enum_value_in_place::test::a_to_b_test ... ok
[INFO] [stdout] test creational::builder::test::builder_test ... ok
[INFO] [stdout] test behavioral::new_type::test::new_type_testing ... ok
[INFO] [stdout] test basics::test::one_mut_ref_max_per_scopre ... ok
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_patterns-88a0cbfc54434e9e)
[INFO] [stdout] test behavioral::raii_guards::test::raii_ward_testing ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 24 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.04s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rust-patterns
[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] [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" "97aa831c4cc0e61df805cb209b1246cc8842f8cf429e2f23d95c70563e5bf569", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97aa831c4cc0e61df805cb209b1246cc8842f8cf429e2f23d95c70563e5bf569", kill_on_drop: false }`
[INFO] [stdout] 97aa831c4cc0e61df805cb209b1246cc8842f8cf429e2f23d95c70563e5bf569