[INFO] cloning repository https://github.com/zzzdong/biujs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zzzdong/biujs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzzzdong%2Fbiujs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzzzdong%2Fbiujs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8865938fa7d7ba1eab57eaaa4eea3d505eb49823
[INFO] checking zzzdong/biujs against 5c543b0b8c73c7b72bc8284ced4fb22ead15734d for pr-160186
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzzzdong%2Fbiujs" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/zzzdong/biujs
[INFO] finished tweaking git repo https://github.com/zzzdong/biujs
[INFO] tweaked toml for git repo https://github.com/zzzdong/biujs written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/zzzdong/biujs on toolchain 5c543b0b8c73c7b72bc8284ced4fb22ead15734d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5c543b0b8c73c7b72bc8284ced4fb22ead15734d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/zzzdong/biujs 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" "+5c543b0b8c73c7b72bc8284ced4fb22ead15734d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: `package.homepage` is redundant with `package.repository`
[INFO] [stderr]   --> Cargo.toml:46:12
[INFO] [stderr]    |
[INFO] [stderr] 46 | homepage = "https://github.com/zzzdong/biujs"
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 51 | repository = "https://github.com/zzzdong/biujs"
[INFO] [stderr]    |              ----------------------------------
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::redundant_homepage` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.homepage`
[INFO] [stderr] warning: `biujs` (manifest) generated 1 warning
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded oxc_estree v0.132.0
[INFO] [stderr]   Downloaded oxc_syntax v0.132.0
[INFO] [stderr]   Downloaded unicode-id-start v1.5.0
[INFO] [stderr]   Downloaded test262-harness v0.1.1
[INFO] [stderr]   Downloaded oxc_str v0.132.0
[INFO] [stderr]   Downloaded oxc_diagnostics v0.132.0
[INFO] [stderr]   Downloaded oxc_ast_macros v0.132.0
[INFO] [stderr]   Downloaded oxc_allocator v0.132.0
[INFO] [stderr]   Downloaded oxc_span v0.132.0
[INFO] [stderr]   Downloaded oxc-miette-derive v2.7.1
[INFO] [stderr]   Downloaded oxc_index v4.1.0
[INFO] [stderr]   Downloaded oxc_data_structures v0.132.0
[INFO] [stderr]   Downloaded dragonbox_ecma v0.1.12
[INFO] [stderr]   Downloaded oxc_ecmascript v0.132.0
[INFO] [stderr]   Downloaded oxc_ast_visit v0.132.0
[INFO] [stderr]   Downloaded oxc-miette v2.7.1
[INFO] [stderr]   Downloaded oxc_semantic v0.132.0
[INFO] [stderr]   Downloaded oxc_regular_expression v0.132.0
[INFO] [stderr]   Downloaded oxc_parser v0.132.0
[INFO] [stderr]   Downloaded criterion v0.6.0
[INFO] [stderr]   Downloaded oxc_ast v0.132.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 4fc4b9944c39d72cce3c243a6a7a0d0988109fdbf9aefdbbec1cf6c29216cc97
[INFO] running `Command { std: "docker" "start" "4fc4b9944c39d72cce3c243a6a7a0d0988109fdbf9aefdbbec1cf6c29216cc97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4fc4b9944c39d72cce3c243a6a7a0d0988109fdbf9aefdbbec1cf6c29216cc97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "4fc4b9944c39d72cce3c243a6a7a0d0988109fdbf9aefdbbec1cf6c29216cc97" "/opt/rustwide/cargo-home/bin/cargo" "+5c543b0b8c73c7b72bc8284ced4fb22ead15734d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4fc4b9944c39d72cce3c243a6a7a0d0988109fdbf9aefdbbec1cf6c29216cc97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "4fc4b9944c39d72cce3c243a6a7a0d0988109fdbf9aefdbbec1cf6c29216cc97" "/opt/rustwide/cargo-home/bin/cargo" "+5c543b0b8c73c7b72bc8284ced4fb22ead15734d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: `package.homepage` is redundant with `package.repository`
[INFO] [stderr]   --> Cargo.toml:46:12
[INFO] [stderr]    |
[INFO] [stderr] 46 | homepage = "https://github.com/zzzdong/biujs"
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 51 | repository = "https://github.com/zzzdong/biujs"
[INFO] [stderr]    |              ----------------------------------
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::redundant_homepage` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.homepage`
[INFO] [stderr] warning: `biujs` (manifest) generated 1 warning
[INFO] [stderr]     Checking allocator-api2 v0.2.21
[INFO] [stderr]    Compiling phf_shared v0.13.1
[INFO] [stderr]     Checking smawk v0.3.3
[INFO] [stderr]    Compiling syn v3.0.6
[INFO] [stderr]    Compiling syn v2.0.119
[INFO] [stderr]     Checking oxc_data_structures v0.132.0
[INFO] [stderr]     Checking rustc-hash v2.1.3
[INFO] [stderr]     Checking oxc_estree v0.132.0
[INFO] [stderr]     Checking cow-utils v0.1.3
[INFO] [stderr]    Compiling dragonbox_ecma v0.1.12
[INFO] [stderr]     Checking nonmax v0.5.5
[INFO] [stderr]     Checking compact_str v0.9.1
[INFO] [stderr]     Checking unicode-id-start v1.5.0
[INFO] [stderr]     Checking regex-automata v0.4.18
[INFO] [stderr]    Compiling zerocopy v0.8.57
[INFO] [stderr]     Checking jiff-core v0.1.1
[INFO] [stderr]     Checking anstream v1.0.0
[INFO] [stderr]     Checking hashbrown v0.15.5
[INFO] [stderr]     Checking itertools v0.14.0
[INFO] [stderr]     Checking fixedbitset v0.5.7
[INFO] [stderr]     Checking self_cell v1.3.0
[INFO] [stderr]     Checking chrono v0.4.45
[INFO] [stderr]     Checking serde_json v1.0.151
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]    Compiling phf_generator v0.13.1
[INFO] [stderr]    Compiling phf v0.13.1
[INFO] [stderr]     Checking rayon v1.12.0
[INFO] [stderr]     Checking itertools v0.13.0
[INFO] [stderr]     Checking hashbrown v0.17.1
[INFO] [stderr]     Checking jiff v0.2.37
[INFO] [stderr]     Checking oxc_allocator v0.132.0
[INFO] [stderr]     Checking indexmap v2.14.2
[INFO] [stderr]     Checking regex v1.13.1
[INFO] [stderr]     Checking env_filter v2.0.0
[INFO] [stderr]     Checking oxc_str v0.132.0
[INFO] [stderr]     Checking petgraph v0.8.3
[INFO] [stderr]     Checking criterion-plot v0.5.0
[INFO] [stderr]    Compiling oxc-miette-derive v2.7.1
[INFO] [stderr]    Compiling oxc_ast_macros v0.132.0
[INFO] [stderr]    Compiling phf_macros v0.13.1
[INFO] [stderr]    Compiling zerocopy-derive v0.8.57
[INFO] [stderr]    Compiling synstructure v0.14.0
[INFO] [stderr]    Compiling zerovec-derive v0.11.6
[INFO] [stderr]    Compiling displaydoc v0.2.7
[INFO] [stderr]    Compiling serde_derive v1.0.229
[INFO] [stderr]    Compiling thiserror-impl v2.0.20
[INFO] [stderr]    Compiling zerofrom-derive v0.1.8
[INFO] [stderr]    Compiling yoke-derive v0.8.3
[INFO] [stderr]     Checking zerotrie v0.2.5
[INFO] [stderr]     Checking zerofrom v0.1.8
[INFO] [stderr]     Checking thiserror v2.0.20
[INFO] [stderr]     Checking yoke v0.8.3
[INFO] [stderr]     Checking zerovec v0.11.8
[INFO] [stderr]     Checking env_logger v0.11.11
[INFO] [stderr]     Checking tinystr v0.8.4
[INFO] [stderr]     Checking potential_utf v0.1.6
[INFO] [stderr]     Checking icu_collections v2.3.0
[INFO] [stderr]     Checking icu_locale_core v2.3.0
[INFO] [stderr]     Checking serde v1.0.229
[INFO] [stderr]     Checking oxc_index v4.1.0
[INFO] [stderr]     Checking serde_yaml v0.9.34+deprecated
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking icu_provider v2.3.1
[INFO] [stderr]     Checking icu_locale_fallback v2.3.0
[INFO] [stderr]     Checking icu_segmenter v2.3.0
[INFO] [stderr]     Checking test262-harness v0.1.1
[INFO] [stderr]     Checking textwrap v0.16.4
[INFO] [stderr]     Checking oxc-miette v2.7.1
[INFO] [stderr]     Checking oxc_span v0.132.0
[INFO] [stderr]     Checking oxc_diagnostics v0.132.0
[INFO] [stderr]     Checking oxc_syntax v0.132.0
[INFO] [stderr]     Checking oxc_regular_expression v0.132.0
[INFO] [stderr]     Checking half v2.7.1
[INFO] [stderr]     Checking oxc_ast v0.132.0
[INFO] [stderr]     Checking ciborium-ll v0.2.2
[INFO] [stderr]     Checking ciborium v0.2.2
[INFO] [stderr]     Checking criterion v0.6.0
[INFO] [stderr]     Checking oxc_ecmascript v0.132.0
[INFO] [stderr]     Checking oxc_ast_visit v0.132.0
[INFO] [stderr]     Checking oxc_parser v0.132.0
[INFO] [stderr]     Checking oxc_semantic v0.132.0
[INFO] [stderr]     Checking biujs v0.1.0-alpha.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::cell::RefCell`
[INFO] [stdout]  --> src/builtins/array.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cell::RefCell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/builtins/array.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/builtins/console.rs:26:1
[INFO] [stdout]    |
[INFO] [stdout] 26 | / /// Labels handed to `console.time`, with the instant they were started.
[INFO] [stdout] 27 | | ///
[INFO] [stdout] 28 | | /// Module-level (process-wide) on purpose: a timer is a debugging aid spanning
[INFO] [stdout] 29 | | /// one host session, not per-VM state — the same reason `console` itself is a
[INFO] [stdout] 30 | | /// host object rather than an ES one.
[INFO] [stdout]    | |_-------------------------------------^
[INFO] [stdout]    |   |
[INFO] [stdout]    |   rustdoc does not generate documentation for macro invocations
[INFO] [stdout]    |
[INFO] [stdout]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `RefCell`
[INFO] [stdout]   --> src/builtins/date.rs:12:17
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::cell::{RefCell, RefMut};
[INFO] [stdout]    |                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]   --> src/builtins/date.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::rc::Rc;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::RefCell`
[INFO] [stdout]  --> src/builtins/promise.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::cell::RefCell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/builtins/promise.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `RefCell`
[INFO] [stdout]   --> src/builtins/regexp.rs:13:17
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::cell::{RefCell, RefMut};
[INFO] [stdout]    |                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]   --> src/builtins/regexp.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::rc::Rc;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::RefCell`
[INFO] [stdout]   --> src/builtins/map.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::cell::RefCell;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]   --> src/builtins/map.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::rc::Rc;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::RefCell`
[INFO] [stdout]  --> src/builtins/math.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cell::RefCell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/builtins/math.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::RefCell`
[INFO] [stdout]  --> src/builtins/number.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cell::RefCell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/builtins/number.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::RefCell`
[INFO] [stdout]  --> src/builtins/object.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::cell::RefCell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/builtins/object.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::RefCell`
[INFO] [stdout]  --> src/builtins/set.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::cell::RefCell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/builtins/set.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `JSObject`
[INFO] [stdout]  --> src/builtins/string.rs:3:52
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::vm::object::{new_array_object_from_vec, JSObject};
[INFO] [stdout]   |                                                    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::RefCell`
[INFO] [stdout]   --> src/builtins/weak.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use std::cell::RefCell;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]   --> src/builtins/weak.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use std::rc::Rc;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::RefCell`
[INFO] [stdout]   --> src/builtins/mod.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | use std::cell::RefCell;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Heap`
[INFO] [stdout]   --> src/vm/iterator.rs:18:25
[INFO] [stdout]    |
[INFO] [stdout] 18 | use crate::vm::gc::{Gc, Heap, Object};
[INFO] [stdout]    |                         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::RefCell`
[INFO] [stdout]   --> src/vm/builtins_dispatch.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::cell::RefCell;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]   --> src/vm/builtins_dispatch.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::rc::Rc;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/vm/exec.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::RefCell`
[INFO] [stdout]  --> src/vm/prototype.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cell::RefCell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/vm/prototype.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Heap`
[INFO] [stdout]  --> src/vm/prototype.rs:4:25
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::vm::gc::{Gc, Heap, Object};
[INFO] [stdout]   |                         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::RefCell`
[INFO] [stdout]  --> src/vm/value.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cell::RefCell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Heap`
[INFO] [stdout]  --> src/vm/value.rs:5:25
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::vm::gc::{Gc, Heap, Object};
[INFO] [stdout]   |                         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::RefCell`
[INFO] [stdout]  --> src/builtins/array.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cell::RefCell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/builtins/array.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/builtins/console.rs:26:1
[INFO] [stdout]    |
[INFO] [stdout] 26 | / /// Labels handed to `console.time`, with the instant they were started.
[INFO] [stdout] 27 | | ///
[INFO] [stdout] 28 | | /// Module-level (process-wide) on purpose: a timer is a debugging aid spanning
[INFO] [stdout] 29 | | /// one host session, not per-VM state — the same reason `console` itself is a
[INFO] [stdout] 30 | | /// host object rather than an ES one.
[INFO] [stdout]    | |_-------------------------------------^
[INFO] [stdout]    |   |
[INFO] [stdout]    |   rustdoc does not generate documentation for macro invocations
[INFO] [stdout]    |
[INFO] [stdout]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `RefCell`
[INFO] [stdout]   --> src/builtins/date.rs:12:17
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::cell::{RefCell, RefMut};
[INFO] [stdout]    |                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]   --> src/builtins/date.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::rc::Rc;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::RefCell`
[INFO] [stdout]  --> src/builtins/promise.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::cell::RefCell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/builtins/promise.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `RefCell`
[INFO] [stdout]   --> src/builtins/regexp.rs:13:17
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::cell::{RefCell, RefMut};
[INFO] [stdout]    |                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]   --> src/builtins/regexp.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::rc::Rc;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::RefCell`
[INFO] [stdout]   --> src/builtins/map.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::cell::RefCell;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]   --> src/builtins/map.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::rc::Rc;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::RefCell`
[INFO] [stdout]  --> src/builtins/math.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cell::RefCell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/builtins/math.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::RefCell`
[INFO] [stdout]  --> src/builtins/number.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cell::RefCell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/builtins/number.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::RefCell`
[INFO] [stdout]  --> src/builtins/object.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::cell::RefCell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/builtins/object.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::RefCell`
[INFO] [stdout]  --> src/builtins/set.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::cell::RefCell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/builtins/set.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `JSObject`
[INFO] [stdout]  --> src/builtins/string.rs:3:52
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::vm::object::{new_array_object_from_vec, JSObject};
[INFO] [stdout]   |                                                    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::RefCell`
[INFO] [stdout]   --> src/builtins/weak.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use std::cell::RefCell;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]   --> src/builtins/weak.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use std::rc::Rc;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::RefCell`
[INFO] [stdout]   --> src/builtins/mod.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | use std::cell::RefCell;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]     --> src/compiler/lowering/mod.rs:5074:9
[INFO] [stdout]      |
[INFO] [stdout] 5074 |     use super::*;
[INFO] [stdout]      |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Heap`
[INFO] [stdout]   --> src/vm/iterator.rs:18:25
[INFO] [stdout]    |
[INFO] [stdout] 18 | use crate::vm::gc::{Gc, Heap, Object};
[INFO] [stdout]    |                         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::RefCell`
[INFO] [stdout]   --> src/vm/builtins_dispatch.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::cell::RefCell;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]   --> src/vm/builtins_dispatch.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::rc::Rc;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/vm/exec.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::RefCell`
[INFO] [stdout]  --> src/vm/prototype.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cell::RefCell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/vm/prototype.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Heap`
[INFO] [stdout]  --> src/vm/prototype.rs:4:25
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::vm::gc::{Gc, Heap, Object};
[INFO] [stdout]   |                         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::RefCell`
[INFO] [stdout]  --> src/vm/value.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cell::RefCell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Heap`
[INFO] [stdout]  --> src/vm/value.rs:5:25
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::vm::gc::{Gc, Heap, Object};
[INFO] [stdout]   |                         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `JSObject`
[INFO] [stdout]  --> src/builtins/array.rs:6:38
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::vm::object::{ArrayObject, JSObject};
[INFO] [stdout]   |                                      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::vm::object::JSObject`
[INFO] [stdout]  --> src/builtins/boolean.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::vm::object::JSObject;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `JSObject`
[INFO] [stdout]   --> src/builtins/date.rs:19:37
[INFO] [stdout]    |
[INFO] [stdout] 19 | use crate::vm::object::{DateObject, JSObject, NativeFunctionObject};
[INFO] [stdout]    |                                     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::vm::object::JSObject`
[INFO] [stdout]   --> src/builtins/promise.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use crate::vm::object::JSObject;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `JSObject`
[INFO] [stdout]  --> src/builtins/function.rs:3:25
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::vm::object::{JSObject, NativeFunctionObject};
[INFO] [stdout]   |                         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `JSObject`
[INFO] [stdout]   --> src/builtins/map.rs:18:25
[INFO] [stdout]    |
[INFO] [stdout] 18 | use crate::vm::object::{JSObject, MapObject, NativeFunctionObject};
[INFO] [stdout]    |                         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::vm::object::JSObject`
[INFO] [stdout]  --> src/builtins/number.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::vm::object::JSObject;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `JSObject`
[INFO] [stdout]   --> src/builtins/set.rs:13:25
[INFO] [stdout]    |
[INFO] [stdout] 13 | use crate::vm::object::{JSObject, NativeFunctionObject, SetObject};
[INFO] [stdout]    |                         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `JSObject`
[INFO] [stdout]   --> src/builtins/weak.rs:20:25
[INFO] [stdout]    |
[INFO] [stdout] 20 | use crate::vm::object::{JSObject, WeakMapObject, WeakSetObject};
[INFO] [stdout]    |                         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `JSObject`
[INFO] [stdout]   --> src/builtins/symbol.rs:10:25
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::vm::object::{JSObject, NativeFunctionObject};
[INFO] [stdout]    |                         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::vm::object::JSObject`
[INFO] [stdout]  --> src/vm/prototype.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::vm::object::JSObject;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/builtins/array.rs:1009:9
[INFO] [stdout]      |
[INFO] [stdout] 1009 |     let mut append = |item: &Value,
[INFO] [stdout]      |         ----^^^^^^
[INFO] [stdout]      |         |
[INFO] [stdout]      |         help: remove this `mut`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `heap`
[INFO] [stdout]    --> src/builtins/regexp.rs:356:46
[INFO] [stdout]     |
[INFO] [stdout] 356 | pub fn register_regexp_statics(ctor: &Value, heap: &mut Heap) {
[INFO] [stdout]     |                                              ^^^^ help: if this is intentional, prefix it with an underscore: `_heap`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `heap`
[INFO] [stdout]  --> src/builtins/function.rs:9:29
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn function_constructor(heap: &mut Heap, _args: &[Value]) -> Result<Value, RuntimeError> {
[INFO] [stdout]   |                             ^^^^ help: if this is intentional, prefix it with an underscore: `_heap`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `heap`
[INFO] [stdout]   --> src/builtins/function.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 47 |     heap: &mut Heap,
[INFO] [stdout]    |     ^^^^ help: if this is intentional, prefix it with an underscore: `_heap`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `heap`
[INFO] [stdout]    --> src/builtins/json.rs:360:23
[INFO] [stdout]     |
[INFO] [stdout] 360 | pub fn json_stringify(heap: &mut Heap, value: &Value) -> Result<Option<String>, RuntimeError> {
[INFO] [stdout]     |                       ^^^^ help: if this is intentional, prefix it with an underscore: `_heap`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `JSObject`
[INFO] [stdout]  --> src/builtins/array.rs:6:38
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::vm::object::{ArrayObject, JSObject};
[INFO] [stdout]   |                                      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::vm::object::JSObject`
[INFO] [stdout]  --> src/builtins/boolean.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::vm::object::JSObject;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `JSObject`
[INFO] [stdout]   --> src/builtins/date.rs:19:37
[INFO] [stdout]    |
[INFO] [stdout] 19 | use crate::vm::object::{DateObject, JSObject, NativeFunctionObject};
[INFO] [stdout]    |                                     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::vm::object::JSObject`
[INFO] [stdout]   --> src/builtins/promise.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use crate::vm::object::JSObject;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `JSObject`
[INFO] [stdout]  --> src/builtins/function.rs:3:25
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::vm::object::{JSObject, NativeFunctionObject};
[INFO] [stdout]   |                         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `JSObject`
[INFO] [stdout]   --> src/builtins/map.rs:18:25
[INFO] [stdout]    |
[INFO] [stdout] 18 | use crate::vm::object::{JSObject, MapObject, NativeFunctionObject};
[INFO] [stdout]    |                         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::vm::object::JSObject`
[INFO] [stdout]  --> src/builtins/number.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::vm::object::JSObject;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `JSObject`
[INFO] [stdout]   --> src/builtins/set.rs:13:25
[INFO] [stdout]    |
[INFO] [stdout] 13 | use crate::vm::object::{JSObject, NativeFunctionObject, SetObject};
[INFO] [stdout]    |                         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `JSObject`
[INFO] [stdout]   --> src/builtins/weak.rs:20:25
[INFO] [stdout]    |
[INFO] [stdout] 20 | use crate::vm::object::{JSObject, WeakMapObject, WeakSetObject};
[INFO] [stdout]    |                         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `JSObject`
[INFO] [stdout]   --> src/builtins/symbol.rs:10:25
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::vm::object::{JSObject, NativeFunctionObject};
[INFO] [stdout]    |                         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::vm::object::JSObject`
[INFO] [stdout]  --> src/vm/prototype.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::vm::object::JSObject;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target_ref`
[INFO] [stdout]    --> src/builtins/object.rs:773:23
[INFO] [stdout]     |
[INFO] [stdout] 773 |     let Value::Object(target_ref) = target else {
[INFO] [stdout]     |                       ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_target_ref`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/builtins/array.rs:1009:9
[INFO] [stdout]      |
[INFO] [stdout] 1009 |     let mut append = |item: &Value,
[INFO] [stdout]      |         ----^^^^^^
[INFO] [stdout]      |         |
[INFO] [stdout]      |         help: remove this `mut`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `heap`
[INFO] [stdout]    --> src/builtins/symbol.rs:103:27
[INFO] [stdout]     |
[INFO] [stdout] 103 | pub fn symbol_constructor(heap: &mut Heap, args: &[Value]) -> Result<Value, RuntimeError> {
[INFO] [stdout]     |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_heap`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `heap`
[INFO] [stdout]    --> src/builtins/regexp.rs:356:46
[INFO] [stdout]     |
[INFO] [stdout] 356 | pub fn register_regexp_statics(ctor: &Value, heap: &mut Heap) {
[INFO] [stdout]     |                                              ^^^^ help: if this is intentional, prefix it with an underscore: `_heap`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `heap`
[INFO] [stdout]  --> src/builtins/function.rs:9:29
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn function_constructor(heap: &mut Heap, _args: &[Value]) -> Result<Value, RuntimeError> {
[INFO] [stdout]   |                             ^^^^ help: if this is intentional, prefix it with an underscore: `_heap`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `heap`
[INFO] [stdout]   --> src/builtins/function.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 47 |     heap: &mut Heap,
[INFO] [stdout]    |     ^^^^ help: if this is intentional, prefix it with an underscore: `_heap`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `heap`
[INFO] [stdout]    --> src/builtins/json.rs:360:23
[INFO] [stdout]     |
[INFO] [stdout] 360 | pub fn json_stringify(heap: &mut Heap, value: &Value) -> Result<Option<String>, RuntimeError> {
[INFO] [stdout]     |                       ^^^^ help: if this is intentional, prefix it with an underscore: `_heap`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/builtins/typedarray.rs:684:9
[INFO] [stdout]     |
[INFO] [stdout] 684 |     let mut ta = as_typedarray(this, "set")?;
[INFO] [stdout]     |         ----^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target_ref`
[INFO] [stdout]    --> src/builtins/object.rs:773:23
[INFO] [stdout]     |
[INFO] [stdout] 773 |     let Value::Object(target_ref) = target else {
[INFO] [stdout]     |                       ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_target_ref`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]     --> src/builtins/mod.rs:1557:9
[INFO] [stdout]      |
[INFO] [stdout] 1543 |         "lastIndexOf" => string::string_last_index_of(obj, args),
[INFO] [stdout]      |         ------------- matches all the relevant values
[INFO] [stdout] ...
[INFO] [stdout] 1557 |         "lastIndexOf" => array::array_last_index_of(obj, args),
[INFO] [stdout]      |         ^^^^^^^^^^^^^ no value can reach this
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `heap`
[INFO] [stdout]    --> src/builtins/symbol.rs:103:27
[INFO] [stdout]     |
[INFO] [stdout] 103 | pub fn symbol_constructor(heap: &mut Heap, args: &[Value]) -> Result<Value, RuntimeError> {
[INFO] [stdout]     |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_heap`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/builtins/typedarray.rs:684:9
[INFO] [stdout]     |
[INFO] [stdout] 684 |     let mut ta = as_typedarray(this, "set")?;
[INFO] [stdout]     |         ----^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]     --> src/builtins/mod.rs:1557:9
[INFO] [stdout]      |
[INFO] [stdout] 1543 |         "lastIndexOf" => string::string_last_index_of(obj, args),
[INFO] [stdout]      |         ------------- matches all the relevant values
[INFO] [stdout] ...
[INFO] [stdout] 1557 |         "lastIndexOf" => array::array_last_index_of(obj, args),
[INFO] [stdout]      |         ^^^^^^^^^^^^^ no value can reach this
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]     --> src/compiler/lowering/mod.rs:2420:13
[INFO] [stdout]      |
[INFO] [stdout] 2420 |             _ => {
[INFO] [stdout]      |             ^ no value can reach this
[INFO] [stdout]      |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]     --> src/compiler/lowering/mod.rs:2420:13
[INFO] [stdout]      |
[INFO] [stdout] 2396 |             BinaryOperator::Addition => self.builder.binop(Opcode::Addx, lhs, rhs),
[INFO] [stdout]      |             ------------------------ matches some of the same values
[INFO] [stdout] 2397 |             BinaryOperator::Subtraction => self.builder.binop(Opcode::Subx, lhs, rhs),
[INFO] [stdout]      |             --------------------------- matches some of the same values
[INFO] [stdout] 2398 |             BinaryOperator::Multiplication => self.builder.binop(Opcode::Mulx, lhs, rhs),
[INFO] [stdout]      |             ------------------------------ matches some of the same values
[INFO] [stdout] 2399 |             BinaryOperator::Division => self.builder.binop(Opcode::Divx, lhs, rhs),
[INFO] [stdout]      |             ------------------------ matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 2420 |             _ => {
[INFO] [stdout]      |             ^ ...and 18 other patterns collectively make this unreachable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]     --> src/compiler/lowering/mod.rs:4036:13
[INFO] [stdout]      |
[INFO] [stdout] 4036 |             _ => {
[INFO] [stdout]      |             ^ no value can reach this
[INFO] [stdout]      |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]     --> src/compiler/lowering/mod.rs:4036:13
[INFO] [stdout]      |
[INFO] [stdout] 3942 |             BindingPattern::BindingIdentifier(id) => {
[INFO] [stdout]      |             ------------------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 3963 |             BindingPattern::AssignmentPattern(ap) => {
[INFO] [stdout]      |             ------------------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 3974 |             BindingPattern::ObjectPattern(op) => {
[INFO] [stdout]      |             --------------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 4003 |             BindingPattern::ArrayPattern(ap) => {
[INFO] [stdout]      |             -------------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 4036 |             _ => {
[INFO] [stdout]      |             ^ collectively making this unreachable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]     --> src/compiler/lowering/mod.rs:2420:13
[INFO] [stdout]      |
[INFO] [stdout] 2420 |             _ => {
[INFO] [stdout]      |             ^ no value can reach this
[INFO] [stdout]      |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]     --> src/compiler/lowering/mod.rs:2420:13
[INFO] [stdout]      |
[INFO] [stdout] 2396 |             BinaryOperator::Addition => self.builder.binop(Opcode::Addx, lhs, rhs),
[INFO] [stdout]      |             ------------------------ matches some of the same values
[INFO] [stdout] 2397 |             BinaryOperator::Subtraction => self.builder.binop(Opcode::Subx, lhs, rhs),
[INFO] [stdout]      |             --------------------------- matches some of the same values
[INFO] [stdout] 2398 |             BinaryOperator::Multiplication => self.builder.binop(Opcode::Mulx, lhs, rhs),
[INFO] [stdout]      |             ------------------------------ matches some of the same values
[INFO] [stdout] 2399 |             BinaryOperator::Division => self.builder.binop(Opcode::Divx, lhs, rhs),
[INFO] [stdout]      |             ------------------------ matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 2420 |             _ => {
[INFO] [stdout]      |             ^ ...and 18 other patterns collectively make this unreachable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]     --> src/compiler/lowering/mod.rs:4036:13
[INFO] [stdout]      |
[INFO] [stdout] 4036 |             _ => {
[INFO] [stdout]      |             ^ no value can reach this
[INFO] [stdout]      |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]     --> src/compiler/lowering/mod.rs:4036:13
[INFO] [stdout]      |
[INFO] [stdout] 3942 |             BindingPattern::BindingIdentifier(id) => {
[INFO] [stdout]      |             ------------------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 3963 |             BindingPattern::AssignmentPattern(ap) => {
[INFO] [stdout]      |             ------------------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 3974 |             BindingPattern::ObjectPattern(op) => {
[INFO] [stdout]      |             --------------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 4003 |             BindingPattern::ArrayPattern(ap) => {
[INFO] [stdout]      |             -------------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 4036 |             _ => {
[INFO] [stdout]      |             ^ collectively making this unreachable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `regex_flags` is never read
[INFO] [stdout]    --> src/vm/builtins_dispatch.rs:621:31
[INFO] [stdout]     |
[INFO] [stdout] 621 |         let mut regex_flags = String::new();
[INFO] [stdout]     |                               ^^^^^^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 630 |                     regex_flags = re.flags.clone();
[INFO] [stdout]     |                     ----------- `regex_flags` is overwritten here before the previous value is read
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `regex_flags` is never read
[INFO] [stdout]    --> src/vm/builtins_dispatch.rs:621:31
[INFO] [stdout]     |
[INFO] [stdout] 621 |         let mut regex_flags = String::new();
[INFO] [stdout]     |                               ^^^^^^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 630 |                     regex_flags = re.flags.clone();
[INFO] [stdout]     |                     ----------- `regex_flags` is overwritten here before the previous value is read
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/vm/mod.rs:451:13
[INFO] [stdout]     |
[INFO] [stdout] 451 |         let mut state = State::new(&mut heap);
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `state`
[INFO] [stdout]     --> src/vm/mod.rs:4069:14
[INFO] [stdout]      |
[INFO] [stdout] 4069 |         let (state, func_id, frame) = {
[INFO] [stdout]      |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_state`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/vm/mod.rs:451:13
[INFO] [stdout]     |
[INFO] [stdout] 451 |         let mut state = State::new(&mut heap);
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `ProtoObject` is more private than the item `gc::Object::Proto::0`
[INFO] [stdout]     --> src/vm/gc.rs:723:11
[INFO] [stdout]      |
[INFO] [stdout]  723 |     Proto(ProtoObject),
[INFO] [stdout]      |           ^^^^^^^^^^^ field `gc::Object::Proto::0` is reachable at visibility `pub`
[INFO] [stdout]      |
[INFO] [stdout] note: but type `ProtoObject` is only usable at visibility `pub(crate)`
[INFO] [stdout]     --> src/builtins/mod.rs:1823:1
[INFO] [stdout]      |
[INFO] [stdout] 1823 | pub(crate) struct ProtoObject {
[INFO] [stdout]      | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `SehRecord` is more private than the item `SuspendedFrame::seh`
[INFO] [stdout]     --> src/vm/object.rs:3914:5
[INFO] [stdout]      |
[INFO] [stdout] 3914 |     pub seh: Vec<crate::vm::SehRecord>,
[INFO] [stdout]      |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ field `SuspendedFrame::seh` is reachable at visibility `pub`
[INFO] [stdout]      |
[INFO] [stdout] note: but type `SehRecord` is only usable at visibility `pub(self)`
[INFO] [stdout]     --> src/vm/mod.rs:5987:1
[INFO] [stdout]      |
[INFO] [stdout] 5987 | struct SehRecord {
[INFO] [stdout]      | ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `register_regexp_statics` is never used
[INFO] [stdout]    --> src/builtins/regexp.rs:356:8
[INFO] [stdout]     |
[INFO] [stdout] 356 | pub fn register_regexp_statics(ctor: &Value, heap: &mut Heap) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `function_prototype_to_string` is never used
[INFO] [stdout]   --> src/builtins/function.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub fn function_prototype_to_string(obj: &Value) -> Result<Value, RuntimeError> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_map_receiver` is never used
[INFO] [stdout]   --> src/builtins/map.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub fn is_map_receiver(this: &Value) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `number_to_string_proto` is never used
[INFO] [stdout]   --> src/builtins/number.rs:39:4
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn number_to_string_proto(obj: &Value) -> Result<Value, RuntimeError> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_set_receiver` is never used
[INFO] [stdout]   --> src/builtins/set.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn is_set_receiver(this: &Value) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `symbol_to_string` is never used
[INFO] [stdout]    --> src/builtins/symbol.rs:305:8
[INFO] [stdout]     |
[INFO] [stdout] 305 | pub fn symbol_to_string(obj: &Value) -> Result<Value, RuntimeError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `symbol_value_of` is never used
[INFO] [stdout]    --> src/builtins/symbol.rs:321:8
[INFO] [stdout]     |
[INFO] [stdout] 321 | pub fn symbol_value_of(obj: &Value) -> Result<Value, RuntimeError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `catch_clause_param_name`, `property_key_to_string`, and `loop_context` are never used
[INFO] [stdout]     --> src/compiler/lowering/mod.rs:4498:8
[INFO] [stdout]      |
[INFO] [stdout]  392 | impl<'a> JSASTLower<'a> {
[INFO] [stdout]      | ----------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 4498 |     fn catch_clause_param_name(&self, catch: &CatchClause<'_>) -> String {
[INFO] [stdout]      |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 4505 |     fn property_key_to_string(&self, key: &PropertyKey<'_>) -> String {
[INFO] [stdout]      |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 4541 |     fn loop_context(&self) -> &LoopContext {
[INFO] [stdout]      |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `array_index_of`, `js_prop_get`, `lookup_on_prototype`, and `resume_sentinel` are never used
[INFO] [stdout]     --> src/vm/mod.rs:1155:8
[INFO] [stdout]      |
[INFO] [stdout]  447 | impl VM {
[INFO] [stdout]      | ------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 1155 |     fn array_index_of(
[INFO] [stdout]      |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 3221 |     fn js_prop_get(obj: &Value, prop: &str) -> Result<Value, RuntimeError> {
[INFO] [stdout]      |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 3480 |     fn lookup_on_prototype(
[INFO] [stdout]      |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 4556 |     fn resume_sentinel(&self, module: &Module) -> usize {
[INFO] [stdout]      |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `free_len` is never used
[INFO] [stdout]    --> src/vm/gc.rs:382:19
[INFO] [stdout]     |
[INFO] [stdout] 156 | impl Heap {
[INFO] [stdout]     | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 382 |     pub(crate) fn free_len(&self) -> usize {
[INFO] [stdout]     |                   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `slice` is never used
[INFO] [stdout]   --> src/vm/utf16.rs:29:15
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub(crate) fn slice(s: &str, start: usize, end: usize) -> String {
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `char_at` is never used
[INFO] [stdout]   --> src/vm/utf16.rs:37:15
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub(crate) fn char_at(s: &str, index: usize) -> String {
[INFO] [stdout]    |               ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `code_point_at` is never used
[INFO] [stdout]   --> src/vm/utf16.rs:51:15
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub(crate) fn code_point_at(s: &str, index: usize) -> Option<u32> {
[INFO] [stdout]    |               ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `unit_offset_of_code_point` is never used
[INFO] [stdout]   --> src/vm/utf16.rs:67:15
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub(crate) fn unit_offset_of_code_point(s: &str, code_point_offset: usize) -> usize {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/builtins/symbol.rs:262:9
[INFO] [stdout]     |
[INFO] [stdout] 262 | /         obj.borrow_mut()
[INFO] [stdout] 263 | |             .define_property(
[INFO] [stdout] 264 | |                 PropertyKey::from_str("for"),
[INFO] [stdout] 265 | |                 super::method_descriptor(for_fn),
[INFO] [stdout] 266 | |             );
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 262 |         let _ = obj.borrow_mut()
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/builtins/symbol.rs:272:9
[INFO] [stdout]     |
[INFO] [stdout] 272 | /         obj.borrow_mut()
[INFO] [stdout] 273 | |             .define_property(
[INFO] [stdout] 274 | |                 PropertyKey::from_str("keyFor"),
[INFO] [stdout] 275 | |                 super::method_descriptor(key_for_fn),
[INFO] [stdout] 276 | |             );
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 272 |         let _ = obj.borrow_mut()
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/builtins/symbol.rs:279:9
[INFO] [stdout]     |
[INFO] [stdout] 279 | /         obj.borrow_mut().define_property(
[INFO] [stdout] 280 | |             PropertyKey::from_str("prototype"),
[INFO] [stdout] 281 | |             super::constructor_prototype_descriptor(Value::Object(*symbol_proto)),
[INFO] [stdout] 282 | |         );
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 279 |         let _ = obj.borrow_mut().define_property(
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `state`
[INFO] [stdout]     --> src/vm/mod.rs:4069:14
[INFO] [stdout]      |
[INFO] [stdout] 4069 |         let (state, func_id, frame) = {
[INFO] [stdout]      |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_state`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]     --> src/vm/mod.rs:4004:25
[INFO] [stdout]      |
[INFO] [stdout] 4004 |                         drop(gobj);
[INFO] [stdout]      |                         ^^^^^----^
[INFO] [stdout]      |                              |
[INFO] [stdout]      |                              argument has type `&mut GeneratorObject`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]      |
[INFO] [stdout] 4004 -                         drop(gobj);
[INFO] [stdout] 4004 +                         let _ = gobj;
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/vm/mod.rs:6410:13
[INFO] [stdout]      |
[INFO] [stdout] 6410 |         let mut state = State::new(&mut heap);
[INFO] [stdout]      |             ----^^^^^
[INFO] [stdout]      |             |
[INFO] [stdout]      |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `ProtoObject` is more private than the item `gc::Object::Proto::0`
[INFO] [stdout]     --> src/vm/gc.rs:723:11
[INFO] [stdout]      |
[INFO] [stdout]  723 |     Proto(ProtoObject),
[INFO] [stdout]      |           ^^^^^^^^^^^ field `gc::Object::Proto::0` is reachable at visibility `pub`
[INFO] [stdout]      |
[INFO] [stdout] note: but type `ProtoObject` is only usable at visibility `pub(crate)`
[INFO] [stdout]     --> src/builtins/mod.rs:1823:1
[INFO] [stdout]      |
[INFO] [stdout] 1823 | pub(crate) struct ProtoObject {
[INFO] [stdout]      | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `SehRecord` is more private than the item `SuspendedFrame::seh`
[INFO] [stdout]     --> src/vm/object.rs:3914:5
[INFO] [stdout]      |
[INFO] [stdout] 3914 |     pub seh: Vec<crate::vm::SehRecord>,
[INFO] [stdout]      |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ field `SuspendedFrame::seh` is reachable at visibility `pub`
[INFO] [stdout]      |
[INFO] [stdout] note: but type `SehRecord` is only usable at visibility `pub(self)`
[INFO] [stdout]     --> src/vm/mod.rs:5987:1
[INFO] [stdout]      |
[INFO] [stdout] 5987 | struct SehRecord {
[INFO] [stdout]      | ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `register_regexp_statics` is never used
[INFO] [stdout]    --> src/builtins/regexp.rs:356:8
[INFO] [stdout]     |
[INFO] [stdout] 356 | pub fn register_regexp_statics(ctor: &Value, heap: &mut Heap) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `function_prototype_to_string` is never used
[INFO] [stdout]   --> src/builtins/function.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub fn function_prototype_to_string(obj: &Value) -> Result<Value, RuntimeError> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_map_receiver` is never used
[INFO] [stdout]   --> src/builtins/map.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub fn is_map_receiver(this: &Value) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `number_to_string_proto` is never used
[INFO] [stdout]   --> src/builtins/number.rs:39:4
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn number_to_string_proto(obj: &Value) -> Result<Value, RuntimeError> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_set_receiver` is never used
[INFO] [stdout]   --> src/builtins/set.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn is_set_receiver(this: &Value) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `symbol_to_string` is never used
[INFO] [stdout]    --> src/builtins/symbol.rs:305:8
[INFO] [stdout]     |
[INFO] [stdout] 305 | pub fn symbol_to_string(obj: &Value) -> Result<Value, RuntimeError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `symbol_value_of` is never used
[INFO] [stdout]    --> src/builtins/symbol.rs:321:8
[INFO] [stdout]     |
[INFO] [stdout] 321 | pub fn symbol_value_of(obj: &Value) -> Result<Value, RuntimeError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `catch_clause_param_name`, `property_key_to_string`, and `loop_context` are never used
[INFO] [stdout]     --> src/compiler/lowering/mod.rs:4498:8
[INFO] [stdout]      |
[INFO] [stdout]  392 | impl<'a> JSASTLower<'a> {
[INFO] [stdout]      | ----------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 4498 |     fn catch_clause_param_name(&self, catch: &CatchClause<'_>) -> String {
[INFO] [stdout]      |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 4505 |     fn property_key_to_string(&self, key: &PropertyKey<'_>) -> String {
[INFO] [stdout]      |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 4541 |     fn loop_context(&self) -> &LoopContext {
[INFO] [stdout]      |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `array_index_of`, `lookup_on_prototype`, and `resume_sentinel` are never used
[INFO] [stdout]     --> src/vm/mod.rs:1155:8
[INFO] [stdout]      |
[INFO] [stdout]  447 | impl VM {
[INFO] [stdout]      | ------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 1155 |     fn array_index_of(
[INFO] [stdout]      |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 3480 |     fn lookup_on_prototype(
[INFO] [stdout]      |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 4556 |     fn resume_sentinel(&self, module: &Module) -> usize {
[INFO] [stdout]      |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `char_at` is never used
[INFO] [stdout]   --> src/vm/utf16.rs:37:15
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub(crate) fn char_at(s: &str, index: usize) -> String {
[INFO] [stdout]    |               ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/builtins/symbol.rs:262:9
[INFO] [stdout]     |
[INFO] [stdout] 262 | /         obj.borrow_mut()
[INFO] [stdout] 263 | |             .define_property(
[INFO] [stdout] 264 | |                 PropertyKey::from_str("for"),
[INFO] [stdout] 265 | |                 super::method_descriptor(for_fn),
[INFO] [stdout] 266 | |             );
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 262 |         let _ = obj.borrow_mut()
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/builtins/symbol.rs:272:9
[INFO] [stdout]     |
[INFO] [stdout] 272 | /         obj.borrow_mut()
[INFO] [stdout] 273 | |             .define_property(
[INFO] [stdout] 274 | |                 PropertyKey::from_str("keyFor"),
[INFO] [stdout] 275 | |                 super::method_descriptor(key_for_fn),
[INFO] [stdout] 276 | |             );
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 272 |         let _ = obj.borrow_mut()
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/builtins/symbol.rs:279:9
[INFO] [stdout]     |
[INFO] [stdout] 279 | /         obj.borrow_mut().define_property(
[INFO] [stdout] 280 | |             PropertyKey::from_str("prototype"),
[INFO] [stdout] 281 | |             super::constructor_prototype_descriptor(Value::Object(*symbol_proto)),
[INFO] [stdout] 282 | |         );
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 279 |         let _ = obj.borrow_mut().define_property(
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]     --> src/vm/mod.rs:4004:25
[INFO] [stdout]      |
[INFO] [stdout] 4004 |                         drop(gobj);
[INFO] [stdout]      |                         ^^^^^----^
[INFO] [stdout]      |                              |
[INFO] [stdout]      |                              argument has type `&mut GeneratorObject`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]      |
[INFO] [stdout] 4004 -                         drop(gobj);
[INFO] [stdout] 4004 +                         let _ = gobj;
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `eval_bool`
[INFO] [stdout]  --> tests/features/arrow_functions.rs:1:22
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::helpers::{eval_bool, eval_js, eval_number, eval_string};
[INFO] [stdout]   |                      ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `eval_number` and `eval_string`
[INFO] [stdout]  --> tests/features/arrow_functions_return.rs:1:31
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::helpers::{eval_js, eval_number, eval_string};
[INFO] [stdout]   |                               ^^^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `eval_bool`
[INFO] [stdout]  --> tests/features/dataview.rs:4:22
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::helpers::{eval_bool, eval_number, eval_string};
[INFO] [stdout]   |                      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `eval_js`
[INFO] [stdout]  --> tests/features/functions.rs:1:33
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::helpers::{eval_bool, eval_js, eval_number, eval_string};
[INFO] [stdout]   |                                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `biujs::Value`
[INFO] [stdout]  --> tests/features/functions.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use biujs::Value;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> tests/features/generators.rs:794:9
[INFO] [stdout]     |
[INFO] [stdout] 794 |     let mut run = |vm: &mut VM, source: &str| -> String {
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `code`
[INFO] [stdout]    --> tests/features/symbol_test.rs:156:9
[INFO] [stdout]     |
[INFO] [stdout] 156 |     let code = r#"
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_code`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `code`
[INFO] [stdout]    --> tests/features/symbol_test.rs:170:9
[INFO] [stdout]     |
[INFO] [stdout] 170 |     let code = r#"
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_code`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `user_defined_valueof_toString` should have a snake case name
[INFO] [stdout]   --> tests/features/complex.rs:78:4
[INFO] [stdout]    |
[INFO] [stdout] 78 | fn user_defined_valueof_toString() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `user_defined_valueof_to_string`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 48.00s
[INFO] running `Command { std: "docker" "inspect" "4fc4b9944c39d72cce3c243a6a7a0d0988109fdbf9aefdbbec1cf6c29216cc97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fc4b9944c39d72cce3c243a6a7a0d0988109fdbf9aefdbbec1cf6c29216cc97", kill_on_drop: false }`
[INFO] [stdout] 4fc4b9944c39d72cce3c243a6a7a0d0988109fdbf9aefdbbec1cf6c29216cc97
