[INFO] cloning repository https://github.com/LeoGurja/helium-lang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LeoGurja/helium-lang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLeoGurja%2Fhelium-lang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLeoGurja%2Fhelium-lang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 557974f2a41e2c39a6175ffe4eafae093d4db2f6
[INFO] testing LeoGurja/helium-lang against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLeoGurja%2Fhelium-lang" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/LeoGurja/helium-lang on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/LeoGurja/helium-lang
[INFO] finished tweaking git repo https://github.com/LeoGurja/helium-lang
[INFO] tweaked toml for git repo https://github.com/LeoGurja/helium-lang written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/LeoGurja/helium-lang already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 87f972776203fa37f1b867e9613d8d1fe30b76ad67cd066f3b1c296dea83cd4c
[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" "87f972776203fa37f1b867e9613d8d1fe30b76ad67cd066f3b1c296dea83cd4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "87f972776203fa37f1b867e9613d8d1fe30b76ad67cd066f3b1c296dea83cd4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87f972776203fa37f1b867e9613d8d1fe30b76ad67cd066f3b1c296dea83cd4c", kill_on_drop: false }`
[INFO] [stdout] 87f972776203fa37f1b867e9613d8d1fe30b76ad67cd066f3b1c296dea83cd4c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0e4461ffb833f8efb9b3732ad57a73f2b356b088878d331d11ea5c4156056923
[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" "0e4461ffb833f8efb9b3732ad57a73f2b356b088878d331d11ea5c4156056923", kill_on_drop: false }`
[INFO] [stderr]    Compiling helium v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]  --> src/builtin/rust/first.rs:6:3
[INFO] [stdout]   |
[INFO] [stdout] 6 |   validate_params(&args, 1);
[INFO] [stdout]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]  --> src/builtin/rust/last.rs:6:3
[INFO] [stdout]   |
[INFO] [stdout] 6 |   validate_params(&args, 1);
[INFO] [stdout]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]  --> src/builtin/rust/len.rs:6:3
[INFO] [stdout]   |
[INFO] [stdout] 6 |   validate_params(&args, 1);
[INFO] [stdout]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]  --> src/builtin/rust/push.rs:6:3
[INFO] [stdout]   |
[INFO] [stdout] 6 |   validate_params(&args, 2);
[INFO] [stdout]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]  --> src/builtin/rust/rest.rs:6:3
[INFO] [stdout]   |
[INFO] [stdout] 6 |   validate_params(&arguments, 1);
[INFO] [stdout]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.13s
[INFO] running `Command { std: "docker" "inspect" "0e4461ffb833f8efb9b3732ad57a73f2b356b088878d331d11ea5c4156056923", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e4461ffb833f8efb9b3732ad57a73f2b356b088878d331d11ea5c4156056923", kill_on_drop: false }`
[INFO] [stdout] 0e4461ffb833f8efb9b3732ad57a73f2b356b088878d331d11ea5c4156056923
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9706cf79f9ab6b1ae3cb5817a9c367f7ccd3ff6b84f32c81c547dc75d4b4164e
[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" "9706cf79f9ab6b1ae3cb5817a9c367f7ccd3ff6b84f32c81c547dc75d4b4164e", kill_on_drop: false }`
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]  --> src/builtin/rust/first.rs:6:3
[INFO] [stdout]   |
[INFO] [stdout] 6 |   validate_params(&args, 1);
[INFO] [stdout]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]  --> src/builtin/rust/last.rs:6:3
[INFO] [stdout]   |
[INFO] [stdout] 6 |   validate_params(&args, 1);
[INFO] [stdout]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling helium v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]  --> src/builtin/rust/len.rs:6:3
[INFO] [stdout]   |
[INFO] [stdout] 6 |   validate_params(&args, 1);
[INFO] [stdout]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]  --> src/builtin/rust/push.rs:6:3
[INFO] [stdout]   |
[INFO] [stdout] 6 |   validate_params(&args, 2);
[INFO] [stdout]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]  --> src/builtin/rust/rest.rs:6:3
[INFO] [stdout]   |
[INFO] [stdout] 6 |   validate_params(&arguments, 1);
[INFO] [stdout]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]  --> src/builtin/rust/first.rs:6:3
[INFO] [stdout]   |
[INFO] [stdout] 6 |   validate_params(&args, 1);
[INFO] [stdout]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]  --> src/builtin/rust/last.rs:6:3
[INFO] [stdout]   |
[INFO] [stdout] 6 |   validate_params(&args, 1);
[INFO] [stdout]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]  --> src/builtin/rust/len.rs:6:3
[INFO] [stdout]   |
[INFO] [stdout] 6 |   validate_params(&args, 1);
[INFO] [stdout]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]  --> src/builtin/rust/push.rs:6:3
[INFO] [stdout]   |
[INFO] [stdout] 6 |   validate_params(&args, 2);
[INFO] [stdout]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]  --> src/builtin/rust/rest.rs:6:3
[INFO] [stdout]   |
[INFO] [stdout] 6 |   validate_params(&arguments, 1);
[INFO] [stdout]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.63s
[INFO] running `Command { std: "docker" "inspect" "9706cf79f9ab6b1ae3cb5817a9c367f7ccd3ff6b84f32c81c547dc75d4b4164e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9706cf79f9ab6b1ae3cb5817a9c367f7ccd3ff6b84f32c81c547dc75d4b4164e", kill_on_drop: false }`
[INFO] [stdout] 9706cf79f9ab6b1ae3cb5817a9c367f7ccd3ff6b84f32c81c547dc75d4b4164e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b0be7518af519504fa9be2877c2d4e9d5cfd18c8dde93bb5cfa6c834a922ccae
[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" "b0be7518af519504fa9be2877c2d4e9d5cfd18c8dde93bb5cfa6c834a922ccae", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stdout] running 85 tests
[INFO] [stderr]  --> src/builtin/rust/first.rs:6:3
[INFO] [stderr]   |
[INFO] [stderr] 6 |   validate_params(&args, 1);
[INFO] [stderr]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]  --> src/builtin/rust/last.rs:6:3
[INFO] [stderr]   |
[INFO] [stderr] 6 |   validate_params(&args, 1);
[INFO] [stderr]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]  --> src/builtin/rust/len.rs:6:3
[INFO] [stderr]   |
[INFO] [stderr] 6 |   validate_params(&args, 1);
[INFO] [stderr]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]  --> src/builtin/rust/push.rs:6:3
[INFO] [stderr]   |
[INFO] [stderr] 6 |   validate_params(&args, 2);
[INFO] [stderr]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]  --> src/builtin/rust/rest.rs:6:3
[INFO] [stderr]   |
[INFO] [stderr] 6 |   validate_params(&arguments, 1);
[INFO] [stderr]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]  --> src/builtin/rust/first.rs:6:3
[INFO] [stderr]   |
[INFO] [stderr] 6 |   validate_params(&args, 1);
[INFO] [stderr]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]  --> src/builtin/rust/last.rs:6:3
[INFO] [stderr]   |
[INFO] [stderr] 6 |   validate_params(&args, 1);
[INFO] [stderr]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]  --> src/builtin/rust/len.rs:6:3
[INFO] [stderr]   |
[INFO] [stderr] 6 |   validate_params(&args, 1);
[INFO] [stderr]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]  --> src/builtin/rust/push.rs:6:3
[INFO] [stderr]   |
[INFO] [stderr] 6 |   validate_params(&args, 2);
[INFO] [stderr]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]  --> src/builtin/rust/rest.rs:6:3
[INFO] [stderr]   |
[INFO] [stderr] 6 |   validate_params(&arguments, 1);
[INFO] [stderr]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/helium-7c4f76f7089eb3cf)
[INFO] [stdout] test lexer::test::hashes ... ok
[INFO] [stdout] test lexer::test::for_loops ... ok
[INFO] [stdout] test lexer::test::hash_indexes ... ok
[INFO] [stdout] test builtin::rust::test::print ... ok
[INFO] [stdout] test builtin::rust::test::array_first ... ok
[INFO] [stdout] test builtin::rust::test::array_push ... ok
[INFO] [stdout] test lexer::test::operators ... ok
[INFO] [stdout] test builtin::rust::test::string_first ... ok
[INFO] [stdout] test builtin::rust::test::string_len ... ok
[INFO] [stdout] test lexer::test::symbols ... ok
[INFO] [stdout] test lexer::test::while_loops ... ok
[INFO] [stdout] test builtin::rust::test::string_push ... ok
[INFO] [stdout] test lexer::test::array ... ok
[INFO] [stdout] test lexer::test::multichar_operators ... ok
[INFO] [stdout] test lexer::test::string ... ok
[INFO] [stdout] test lexer::test::array_indexes ... ok
[INFO] [stdout] test parser::test::call_expressions ... ok
[INFO] [stdout] test parser::test::array_expressions ... ok
[INFO] [stdout] test parser::test::boolean_expressions ... ok
[INFO] [stdout] test lexer::test::code ... ok
[INFO] [stdout] test lexer::test::keywords ... ok
[INFO] [stdout] test builtin::rust::test::array_len ... ok
[INFO] [stdout] test builtin::rust::test::array_last ... ok
[INFO] [stdout] test parser::test::escaped_string_expressions ... ok
[INFO] [stdout] test parser::test::function_declarations ... ok
[INFO] [stdout] test parser::test::hash_indexes ... ok
[INFO] [stdout] test parser::test::for_statements ... ok
[INFO] [stdout] test builtin::rust::test::string_last ... ok
[INFO] [stdout] test parser::test::for_blocks ... ok
[INFO] [stdout] test parser::test::function_blocks ... ok
[INFO] [stdout] test parser::test::function_blocks_with_args ... ok
[INFO] [stdout] test parser::test::function_declarations_with_args ... ok
[INFO] [stdout] test parser::test::hash ... ok
[INFO] [stdout] test parser::test::return_statements ... ok
[INFO] [stdout] test test::integration::book_name ... ok
[INFO] [stdout] test visitor::test::visit_array ... ok
[INFO] [stdout] test parser::test::while_statements ... ok
[INFO] [stdout] test parser::test::while_blocks ... ok
[INFO] [stdout] test parser::test::precedence ... ok
[INFO] [stdout] test visitor::test::visit_array_index ... ok
[INFO] [stdout] test parser::test::reassign ... ok
[INFO] [stdout] test parser::test::string_expressions ... ok
[INFO] [stdout] test visitor::test::visit_bang_on_integer ... ok
[INFO] [stdout] test visitor::test::visit_empty_return ... ok
[INFO] [stdout] test visitor::test::visit_function_declaration ... ok
[INFO] [stdout] test parser::test::let_statements ... ok
[INFO] [stdout] test parser::test::semicolons ... ok
[INFO] [stdout] test visitor::test::visit_boolean_expression ... ok
[INFO] [stdout] test visitor::test::visit_bang_on_boolean ... ok
[INFO] [stdout] test visitor::test::visit_function_doesnt_have_frozen_parent ... ok
[INFO] [stdout] test visitor::test::visit_boolean_variable_declaration ... ok
[INFO] [stdout] test visitor::test::visit_closure ... ok
[INFO] [stdout] test visitor::test::visit_else ... ok
[INFO] [stdout] test visitor::test::visit_for_loop ... ok
[INFO] [stdout] test parser::test::if_block ... ok
[INFO] [stdout] test visitor::test::visit_function_call ... ok
[INFO] [stdout] test parser::test::prefix_expressions ... ok
[INFO] [stdout] test visitor::test::visit_hash ... ok
[INFO] [stdout] test visitor::test::visit_hash_index ... ok
[INFO] [stdout] test parser::test::infix_expressions ... ok
[INFO] [stdout] test visitor::test::visit_infix_greater_than ... ok
[INFO] [stdout] test visitor::test::visit_infix_plus ... ok
[INFO] [stdout] test visitor::test::visit_infix_equals_on_boolean ... ok
[INFO] [stdout] test visitor::test::visit_infix_multiply ... ok
[INFO] [stdout] test visitor::test::visit_infix_less_than ... ok
[INFO] [stdout] test visitor::test::visit_infix_not_equals_on_boolean ... ok
[INFO] [stdout] test visitor::test::visit_integer_expression ... ok
[INFO] [stdout] test visitor::test::visit_infix_equals_on_integer ... ok
[INFO] [stdout] test visitor::test::visit_out_of_bounds_index ... ok
[INFO] [stdout] test visitor::test::visit_infix_minus ... ok
[INFO] [stdout] test parser::test::if_expressions ... ok
[INFO] [stdout] test visitor::test::visit_if ... ok
[INFO] [stdout] test visitor::test::visit_infix_divide ... ok
[INFO] [stdout] test visitor::test::visit_reassign ... ok
[INFO] [stdout] test visitor::test::visit_multiple_bangs ... ok
[INFO] [stdout] test visitor::test::visit_integer_variable_declaration ... ok
[INFO] [stdout] test visitor::test::visit_return ... ok
[INFO] [stdout] test visitor::test::visit_string_concat ... ok
[INFO] [stdout] test test::integration::fibonacci ... ok
[INFO] [stdout] test visitor::test::visit_minus ... ok
[INFO] [stdout] test visitor::test::visit_no_else ... ok
[INFO] [stdout] test visitor::test::visit_while_loop ... ok
[INFO] [stdout] test visitor::test::visit_string ... ok
[INFO] [stdout] test visitor::test::visit_function_with_outer_scope ... ok
[INFO] [stdout] test visitor::test::visit_infix_not_equals_on_integer ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 85 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.13s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/helium-e8b023966c5a3b2b)
[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 helium
[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" "b0be7518af519504fa9be2877c2d4e9d5cfd18c8dde93bb5cfa6c834a922ccae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0be7518af519504fa9be2877c2d4e9d5cfd18c8dde93bb5cfa6c834a922ccae", kill_on_drop: false }`
[INFO] [stdout] b0be7518af519504fa9be2877c2d4e9d5cfd18c8dde93bb5cfa6c834a922ccae