[INFO] updating cached repository https://github.com/comradeHsu/Must
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/comradeHsu/Must
[INFO] [stderr]    30235a6..195f8de  devlop     -> devlop
[INFO] [stderr]    8d2fd9f..371c464  master     -> master
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 371c4641ace66daeba03ef65cb24d12556576f50
[INFO] checking comradeHsu/Must against try#a243773eaf3fedcd203f10ae4579e4f106bf7ccd for pr-68325
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FcomradeHsu%2FMust" "/workspace/builds/worker-5/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/comradeHsu/Must on toolchain a243773eaf3fedcd203f10ae4579e4f106bf7ccd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+a243773eaf3fedcd203f10ae4579e4f106bf7ccd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/comradeHsu/Must
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[INFO] tweaked toml for git repo https://github.com/comradeHsu/Must written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/comradeHsu/Must already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+a243773eaf3fedcd203f10ae4579e4f106bf7ccd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+a243773eaf3fedcd203f10ae4579e4f106bf7ccd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 3a266ca5ad9b6f53ddae3836ad9b4c54bf88404ca94ec87ca9f4bc58a110b549
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "3a266ca5ad9b6f53ddae3836ad9b4c54bf88404ca94ec87ca9f4bc58a110b549"`
[INFO] [stderr]    Compiling bzip2-sys v0.1.7
[INFO] [stderr]     Checking bzip2 v0.3.3
[INFO] [stderr]     Checking zip v0.5.3
[INFO] [stderr]     Checking rust-jvm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `display_16`
[INFO] [stderr]  --> src/class_file/class_file.rs:2:50
[INFO] [stderr]   |
[INFO] [stderr] 2 | use crate::class_file::member_info::{MemberInfo, display_16};
[INFO] [stderr]   |                                                  ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `AttributeInfo`
[INFO] [stderr]  --> src/class_file/class_file.rs:4:41
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::class_file::attribute_info::{AttributeInfo, read_attributes, Attribute};
[INFO] [stderr]   |                                         ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Ref`
[INFO] [stderr]  --> src/class_file/class_file.rs:7:26
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::cell::{RefCell, Ref};
[INFO] [stderr]   |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `AttributeInfo`
[INFO] [stderr]  --> src/class_file/member_info.rs:3:41
[INFO] [stderr]   |
[INFO] [stderr] 3 | use crate::class_file::attribute_info::{AttributeInfo, read_attributes, Attribute};
[INFO] [stderr]   |                                         ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::any::Any`
[INFO] [stderr]  --> src/class_file/member_info.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::any::Any;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::mem`
[INFO] [stderr]  --> src/class_file/member_info.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::mem;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::any::Any`
[INFO] [stderr]  --> src/class_file/constant_pool.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::any::Any;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::mem`
[INFO] [stderr]  --> src/class_file/constant_pool.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::mem;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::class_file::makers_attribute::DeprecatedAttribute`
[INFO] [stderr]  --> src/class_file/constant_pool.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use crate::class_file::makers_attribute::DeprecatedAttribute;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::class_file::member_info::display_16`
[INFO] [stderr]   --> src/class_file/attribute_info.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use crate::class_file::member_info::display_16;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::class_file::member_info::display_16`
[INFO] [stderr]  --> src/class_file/line_number_table_attribute.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use crate::class_file::member_info::display_16;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::runtime_data_area::slot::Slot`
[INFO] [stderr]  --> src/runtime_data_area/heap/object.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::runtime_data_area::slot::Slot;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Error`, `Formatter`
[INFO] [stderr]  --> src/runtime_data_area/heap/object.rs:7:23
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::fmt::{Debug, Formatter, Error};
[INFO] [stderr]   |                       ^^^^^^^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `AccessFlag`
[INFO] [stderr]  --> src/runtime_data_area/heap/class.rs:6:52
[INFO] [stderr]   |
[INFO] [stderr] 6 | use crate::runtime_data_area::heap::access_flags::{AccessFlag, PUBLIC, FINAL, SUPER, INTERFACE,
[INFO] [stderr]   |                                                    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::runtime_data_area::slot::Slot`
[INFO] [stderr]  --> src/runtime_data_area/heap/class.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use crate::runtime_data_area::slot::Slot;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `core::mem`
[INFO] [stderr]   --> src/runtime_data_area/heap/class.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | use core::mem;
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::runtime_data_area::heap::access_flags::AccessFlag::*`
[INFO] [stderr]  --> src/runtime_data_area/heap/access_flags.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::runtime_data_area::heap::access_flags::AccessFlag::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `core::mem`
[INFO] [stderr]  --> src/runtime_data_area/heap/constant_pool.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use core::mem;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `RefMut`
[INFO] [stderr]  --> src/runtime_data_area/heap/class_loader.rs:9:26
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::cell::{RefCell, RefMut};
[INFO] [stderr]   |                          ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around method argument
[INFO] [stderr]   --> src/instructions/base/method_invoke_logic.rs:15:27
[INFO] [stderr]    |
[INFO] [stderr] 15 |                 .set_slot((arg_slot_count-1-size),slot);
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::class_file::member_info::MemberInfo`
[INFO] [stderr]  --> src/interpreter.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::class_file::member_info::MemberInfo;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::runtime_data_area::frame::Frame`
[INFO] [stderr]  --> src/interpreter.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use crate::runtime_data_area::frame::Frame;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time::SystemTime`
[INFO] [stderr]   --> src/interpreter.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::time::SystemTime;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `MemberInfo`, `display_16`
[INFO] [stderr]   --> src/main.rs:12:38
[INFO] [stderr]    |
[INFO] [stderr] 12 | use crate::class_file::member_info::{display_16, MemberInfo};
[INFO] [stderr]    |                                      ^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `time`
[INFO] [stderr]    --> src/class_path/class_path.rs:135:20
[INFO] [stderr]     |
[INFO] [stderr] 135 |     use std::{env, time};
[INFO] [stderr]     |                    ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fs::File`
[INFO] [stderr]   --> src/class_path/dir_entry.rs:51:9
[INFO] [stderr]    |
[INFO] [stderr] 51 |     use std::fs::File;
[INFO] [stderr]    |         ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::class_path::class_path::FindClassError`
[INFO] [stderr]   --> src/class_path/dir_entry.rs:52:9
[INFO] [stderr]    |
[INFO] [stderr] 52 |     use crate::class_path::class_path::FindClassError;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::class_path::zip_entry::ZipEntry`
[INFO] [stderr]   --> src/class_path/zip_entry.rs:53:9
[INFO] [stderr]    |
[INFO] [stderr] 53 |     use crate::class_path::zip_entry::ZipEntry;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `podio::ReadPodExt`
[INFO] [stderr]   --> src/class_path/zip_entry.rs:54:9
[INFO] [stderr]    |
[INFO] [stderr] 54 |     use podio::ReadPodExt;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `display_16`
[INFO] [stderr]  --> src/class_file/class_file.rs:2:50
[INFO] [stderr]   |
[INFO] [stderr] 2 | use crate::class_file::member_info::{MemberInfo, display_16};
[INFO] [stderr]   |                                                  ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `AttributeInfo`
[INFO] [stderr]  --> src/class_file/class_file.rs:4:41
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::class_file::attribute_info::{AttributeInfo, read_attributes, Attribute};
[INFO] [stderr]   |                                         ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Ref`
[INFO] [stderr]  --> src/class_file/class_file.rs:7:26
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::cell::{RefCell, Ref};
[INFO] [stderr]   |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cell::RefCell`
[INFO] [stderr]    --> src/class_file/class_file.rs:154:9
[INFO] [stderr]     |
[INFO] [stderr] 154 |     use std::cell::RefCell;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `AttributeInfo`
[INFO] [stderr]  --> src/class_file/member_info.rs:3:41
[INFO] [stderr]   |
[INFO] [stderr] 3 | use crate::class_file::attribute_info::{AttributeInfo, read_attributes, Attribute};
[INFO] [stderr]   |                                         ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::any::Any`
[INFO] [stderr]  --> src/class_file/member_info.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::any::Any;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::mem`
[INFO] [stderr]  --> src/class_file/member_info.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::mem;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::any::Any`
[INFO] [stderr]  --> src/class_file/constant_pool.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::any::Any;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::mem`
[INFO] [stderr]  --> src/class_file/constant_pool.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::mem;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::class_file::makers_attribute::DeprecatedAttribute`
[INFO] [stderr]  --> src/class_file/constant_pool.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use crate::class_file::makers_attribute::DeprecatedAttribute;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::class_file::member_info::display_16`
[INFO] [stderr]   --> src/class_file/attribute_info.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use crate::class_file::member_info::display_16;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::class_file::member_info::display_16`
[INFO] [stderr]  --> src/class_file/line_number_table_attribute.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use crate::class_file::member_info::display_16;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::runtime_data_area::slot::Slot`
[INFO] [stderr]  --> src/runtime_data_area/heap/object.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::runtime_data_area::slot::Slot;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Error`, `Formatter`
[INFO] [stderr]  --> src/runtime_data_area/heap/object.rs:7:23
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::fmt::{Debug, Formatter, Error};
[INFO] [stderr]   |                       ^^^^^^^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `AccessFlag`
[INFO] [stderr]  --> src/runtime_data_area/heap/class.rs:6:52
[INFO] [stderr]   |
[INFO] [stderr] 6 | use crate::runtime_data_area::heap::access_flags::{AccessFlag, PUBLIC, FINAL, SUPER, INTERFACE,
[INFO] [stderr]   |                                                    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::runtime_data_area::slot::Slot`
[INFO] [stderr]  --> src/runtime_data_area/heap/class.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use crate::runtime_data_area::slot::Slot;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `core::mem`
[INFO] [stderr]   --> src/runtime_data_area/heap/class.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | use core::mem;
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::runtime_data_area::heap::access_flags::AccessFlag::*`
[INFO] [stderr]  --> src/runtime_data_area/heap/access_flags.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::runtime_data_area::heap::access_flags::AccessFlag::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `core::mem`
[INFO] [stderr]  --> src/runtime_data_area/heap/constant_pool.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use core::mem;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `RefMut`
[INFO] [stderr]  --> src/runtime_data_area/heap/class_loader.rs:9:26
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::cell::{RefCell, RefMut};
[INFO] [stderr]   |                          ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around method argument
[INFO] [stderr]   --> src/instructions/base/method_invoke_logic.rs:15:27
[INFO] [stderr]    |
[INFO] [stderr] 15 |                 .set_slot((arg_slot_count-1-size),slot);
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::class_file::member_info::MemberInfo`
[INFO] [stderr]  --> src/interpreter.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::class_file::member_info::MemberInfo;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::runtime_data_area::frame::Frame`
[INFO] [stderr]  --> src/interpreter.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use crate::runtime_data_area::frame::Frame;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time::SystemTime`
[INFO] [stderr]   --> src/interpreter.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::time::SystemTime;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `MemberInfo`, `display_16`
[INFO] [stderr]   --> src/main.rs:12:38
[INFO] [stderr]    |
[INFO] [stderr] 12 | use crate::class_file::member_info::{display_16, MemberInfo};
[INFO] [stderr]    |                                      ^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::env`
[INFO] [stderr]   --> src/main.rs:71:9
[INFO] [stderr]    |
[INFO] [stderr] 71 |     use std::env;
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `load_class`
[INFO] [stderr]   --> src/main.rs:74:17
[INFO] [stderr]    |
[INFO] [stderr] 74 |     use crate::{load_class};
[INFO] [stderr]    |                 ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::borrow::Borrow`
[INFO] [stderr]  --> src/class_file/class_file.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::borrow::Borrow;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::borrow::Borrow`
[INFO] [stderr]  --> src/class_file/constant_pool.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::borrow::Borrow;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::borrow::Borrow`
[INFO] [stderr]  --> src/runtime_data_area/heap/class_member.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::borrow::Borrow;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::borrow::Borrow`
[INFO] [stderr]  --> src/runtime_data_area/heap/sym_ref.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::borrow::Borrow;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::borrow::Borrow`
[INFO] [stderr]  --> src/runtime_data_area/heap/field_ref.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::borrow::Borrow;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::borrow::Borrow`
[INFO] [stderr]  --> src/runtime_data_area/heap/method_ref.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::borrow::Borrow;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::borrow::Borrow`
[INFO] [stderr]   --> src/runtime_data_area/heap/class_loader.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::borrow::Borrow;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::borrow::Borrow`
[INFO] [stderr]  --> src/instructions/references/instance_of.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::borrow::Borrow;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::borrow::Borrow`
[INFO] [stderr]  --> src/instructions/references/invoke_special.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::borrow::Borrow;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::borrow::BorrowMut`
[INFO] [stderr]  --> src/interpreter.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::borrow::BorrowMut;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/class_file/constant_pool.rs:65:17
[INFO] [stderr]    |
[INFO] [stderr] 65 |                 MethodRef(info) => info.0.cp = rc_pool.clone(),
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `bytes` is never read
[INFO] [stderr]   --> src/class_path/zip_entry.rs:31:17
[INFO] [stderr]    |
[INFO] [stderr] 31 |         let mut bytes = Vec::new();
[INFO] [stderr]    |                 ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `rem` is never read
[INFO] [stderr]   --> src/class_file/member_info.rs:96:13
[INFO] [stderr]    |
[INFO] [stderr] 96 |     let mut rem = 0;
[INFO] [stderr]    |             ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `dat`
[INFO] [stderr]    --> src/class_file/constant_pool.rs:209:9
[INFO] [stderr]     |
[INFO] [stderr] 209 |     let dat = display_16(reader.data.clone());
[INFO] [stderr]     |         ^^^ help: consider prefixing with an underscore: `_dat`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `info`
[INFO] [stderr]   --> src/class_file/constant_pool.rs:32:22
[INFO] [stderr]    |
[INFO] [stderr] 32 |                 Long(info) => {
[INFO] [stderr]    |                      ^^^^ help: consider prefixing with an underscore: `_info`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `info`
[INFO] [stderr]   --> src/class_file/constant_pool.rs:39:24
[INFO] [stderr]    |
[INFO] [stderr] 39 |                 Double(info) => {
[INFO] [stderr]    |                        ^^^^ help: consider prefixing with an underscore: `_info`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `clone`
[INFO] [stderr]   --> src/class_file/attribute_info.rs:28:9
[INFO] [stderr]    |
[INFO] [stderr] 28 |     let clone = reader.data.clone();
[INFO] [stderr]    |         ^^^^^ help: consider prefixing with an underscore: `_clone`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `reader`
[INFO] [stderr]   --> src/class_file/makers_attribute.rs:15:29
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn read_info(&mut self, reader: &mut ClassReader) {
[INFO] [stderr]    |                             ^^^^^^ help: consider prefixing with an underscore: `_reader`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `reader`
[INFO] [stderr]   --> src/class_file/makers_attribute.rs:29:29
[INFO] [stderr]    |
[INFO] [stderr] 29 |     fn read_info(&mut self, reader: &mut ClassReader) {
[INFO] [stderr]    |                             ^^^^^^ help: consider prefixing with an underscore: `_reader`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `class`
[INFO] [stderr]    --> src/runtime_data_area/heap/class_loader.rs:125:15
[INFO] [stderr]     |
[INFO] [stderr] 125 |     fn verify(class:&Rc<RefCell<Class>>) {
[INFO] [stderr]     |               ^^^^^ help: consider prefixing with an underscore: `_class`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]    --> src/runtime_data_area/heap/class_loader.rs:236:19
[INFO] [stderr]     |
[INFO] [stderr] 236 |     fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error> {
[INFO] [stderr]     |                   ^ help: consider prefixing with an underscore: `_f`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `front`
[INFO] [stderr]   --> src/utils/numbers.rs:28:10
[INFO] [stderr]    |
[INFO] [stderr] 28 |     let (front,back) = bytes.split_at(4);
[INFO] [stderr]    |          ^^^^^ help: consider prefixing with an underscore: `_front`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `reader`
[INFO] [stderr]   --> src/instructions/base/instruction.rs:25:33
[INFO] [stderr]    |
[INFO] [stderr] 25 |     fn fetch_operands(&mut self,reader: &mut BytecodeReader) {
[INFO] [stderr]    |                                 ^^^^^^ help: consider prefixing with an underscore: `_reader`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `frame`
[INFO] [stderr]   --> src/instructions/base/instruction.rs:28:26
[INFO] [stderr]    |
[INFO] [stderr] 28 |     fn execute(&mut self,frame: &mut Frame) {
[INFO] [stderr]    |                          ^^^^^ help: consider prefixing with an underscore: `_frame`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `frame`
[INFO] [stderr]   --> src/instructions/base/instruction.rs:54:26
[INFO] [stderr]    |
[INFO] [stderr] 54 |     fn execute(&mut self,frame: &mut Frame) {
[INFO] [stderr]    |                          ^^^^^ help: consider prefixing with an underscore: `_frame`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `frame`
[INFO] [stderr]   --> src/instructions/base/instruction.rs:86:27
[INFO] [stderr]    |
[INFO] [stderr] 86 |     fn execute(&mut self, frame: &mut Frame) {
[INFO] [stderr]    |                           ^^^^^ help: consider prefixing with an underscore: `_frame`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `frame`
[INFO] [stderr]    --> src/instructions/base/instruction.rs:113:27
[INFO] [stderr]     |
[INFO] [stderr] 113 |     fn execute(&mut self, frame: &mut Frame) {
[INFO] [stderr]     |                           ^^^^^ help: consider prefixing with an underscore: `_frame`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `frame`
[INFO] [stderr]   --> src/instructions/constants/nop.rs:19:27
[INFO] [stderr]    |
[INFO] [stderr] 19 |     fn execute(&mut self, frame: &mut Frame) {
[INFO] [stderr]    |                           ^^^^^ help: consider prefixing with an underscore: `_frame`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `offset` is never read
[INFO] [stderr]   --> src/instructions/control/table_switch.rs:38:17
[INFO] [stderr]    |
[INFO] [stderr] 38 |         let mut offset = 0;
[INFO] [stderr]    |                 ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `current_frame`
[INFO] [stderr]    --> src/instructions/control/return.rs:149:17
[INFO] [stderr]     |
[INFO] [stderr] 149 |         let mut current_frame = (*thread).borrow_mut().pop_frame();
[INFO] [stderr]     |                 ^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_current_frame`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `slots`
[INFO] [stderr]   --> src/instructions/references/put_field.rs:43:13
[INFO] [stderr]    |
[INFO] [stderr] 43 |         let slots = class.borrow_mut().mut_static_vars().expect("slots is none");
[INFO] [stderr]    |             ^^^^^ help: consider prefixing with an underscore: `_slots`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/cmd.rs:25:13
[INFO] [stderr]    |
[INFO] [stderr] 25 |         let mut args = std::env::args();
[INFO] [stderr]    |             ----^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/class_path/composite_entry.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let mut mut_paths = paths.clone();
[INFO] [stderr]    |         ----^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::borrow::Borrow`
[INFO] [stderr]  --> src/class_file/class_file.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::borrow::Borrow;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::borrow::Borrow`
[INFO] [stderr]  --> src/class_file/constant_pool.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::borrow::Borrow;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::borrow::Borrow`
[INFO] [stderr]  --> src/runtime_data_area/heap/class_member.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::borrow::Borrow;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::borrow::Borrow`
[INFO] [stderr]  --> src/runtime_data_area/heap/sym_ref.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::borrow::Borrow;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::borrow::Borrow`
[INFO] [stderr]  --> src/runtime_data_area/heap/field_ref.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::borrow::Borrow;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::borrow::Borrow`
[INFO] [stderr]  --> src/runtime_data_area/heap/method_ref.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::borrow::Borrow;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::borrow::Borrow`
[INFO] [stderr]   --> src/runtime_data_area/heap/class_loader.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::borrow::Borrow;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/class_file/constant_pool.rs:26:13
[INFO] [stderr]    |
[INFO] [stderr] 26 |         let mut cp = Rc::new(RefCell::new(ConstantPool::new()));
[INFO] [stderr]    |             ----^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::borrow::Borrow`
[INFO] [stderr]  --> src/instructions/references/instance_of.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::borrow::Borrow;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/class_file/constant_pool.rs:51:13
[INFO] [stderr]    |
[INFO] [stderr] 51 |         let mut c = Rc::new(RefCell::new(ConstantPool{vec}));
[INFO] [stderr]    |             ----^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::borrow::Borrow`
[INFO] [stderr]  --> src/instructions/references/invoke_special.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::borrow::Borrow;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::borrow::BorrowMut`
[INFO] [stderr]  --> src/interpreter.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::borrow::BorrowMut;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/class_file/constant_pool.rs:65:17
[INFO] [stderr]    |
[INFO] [stderr] 65 |                 MethodRef(info) => info.0.cp = rc_pool.clone(),
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/class_file/constant_pool.rs:83:13
[INFO] [stderr]    |
[INFO] [stderr] 83 |         let mut inf = match info {
[INFO] [stderr]    |             ----^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/class_file/constant_pool.rs:94:13
[INFO] [stderr]    |
[INFO] [stderr] 94 |         let mut class = match info {
[INFO] [stderr]    |             ----^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `file`
[INFO] [stderr]   --> src/class_path/dir_entry.rs:59:13
[INFO] [stderr]    |
[INFO] [stderr] 59 |         let file = match result {
[INFO] [stderr]    |             ^^^^ help: consider prefixing with an underscore: `_file`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/class_path/dir_entry.rs:60:17
[INFO] [stderr]    |
[INFO] [stderr] 60 |             Err(e) => panic!("打不开"),
[INFO] [stderr]    |                 ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `bytes` is never read
[INFO] [stderr]   --> src/class_path/zip_entry.rs:31:17
[INFO] [stderr]    |
[INFO] [stderr] 31 |         let mut bytes = Vec::new();
[INFO] [stderr]    |                 ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `rem` is never read
[INFO] [stderr]   --> src/class_file/member_info.rs:96:13
[INFO] [stderr]    |
[INFO] [stderr] 96 |     let mut rem = 0;
[INFO] [stderr]    |             ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `dat`
[INFO] [stderr]    --> src/class_file/constant_pool.rs:209:9
[INFO] [stderr]     |
[INFO] [stderr] 209 |     let dat = display_16(reader.data.clone());
[INFO] [stderr]     |         ^^^ help: consider prefixing with an underscore: `_dat`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `info`
[INFO] [stderr]   --> src/class_file/constant_pool.rs:32:22
[INFO] [stderr]    |
[INFO] [stderr] 32 |                 Long(info) => {
[INFO] [stderr]    |                      ^^^^ help: consider prefixing with an underscore: `_info`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `info`
[INFO] [stderr]   --> src/class_file/constant_pool.rs:39:24
[INFO] [stderr]    |
[INFO] [stderr] 39 |                 Double(info) => {
[INFO] [stderr]    |                        ^^^^ help: consider prefixing with an underscore: `_info`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `clone`
[INFO] [stderr]   --> src/class_file/attribute_info.rs:28:9
[INFO] [stderr]    |
[INFO] [stderr] 28 |     let clone = reader.data.clone();
[INFO] [stderr]    |         ^^^^^ help: consider prefixing with an underscore: `_clone`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `reader`
[INFO] [stderr]   --> src/class_file/makers_attribute.rs:15:29
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn read_info(&mut self, reader: &mut ClassReader) {
[INFO] [stderr]    |                             ^^^^^^ help: consider prefixing with an underscore: `_reader`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `reader`
[INFO] [stderr]   --> src/class_file/makers_attribute.rs:29:29
[INFO] [stderr]    |
[INFO] [stderr] 29 |     fn read_info(&mut self, reader: &mut ClassReader) {
[INFO] [stderr]    |                             ^^^^^^ help: consider prefixing with an underscore: `_reader`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `class`
[INFO] [stderr]    --> src/runtime_data_area/heap/class_loader.rs:125:15
[INFO] [stderr]     |
[INFO] [stderr] 125 |     fn verify(class:&Rc<RefCell<Class>>) {
[INFO] [stderr]     |               ^^^^^ help: consider prefixing with an underscore: `_class`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]    --> src/runtime_data_area/heap/class_loader.rs:236:19
[INFO] [stderr]     |
[INFO] [stderr] 236 |     fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error> {
[INFO] [stderr]     |                   ^ help: consider prefixing with an underscore: `_f`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `front`
[INFO] [stderr]   --> src/utils/numbers.rs:28:10
[INFO] [stderr]    |
[INFO] [stderr] 28 |     let (front,back) = bytes.split_at(4);
[INFO] [stderr]    |          ^^^^^ help: consider prefixing with an underscore: `_front`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `reader`
[INFO] [stderr]   --> src/instructions/base/instruction.rs:25:33
[INFO] [stderr]    |
[INFO] [stderr] 25 |     fn fetch_operands(&mut self,reader: &mut BytecodeReader) {
[INFO] [stderr]    |                                 ^^^^^^ help: consider prefixing with an underscore: `_reader`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `frame`
[INFO] [stderr]   --> src/instructions/base/instruction.rs:28:26
[INFO] [stderr]    |
[INFO] [stderr] 28 |     fn execute(&mut self,frame: &mut Frame) {
[INFO] [stderr]    |                          ^^^^^ help: consider prefixing with an underscore: `_frame`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `frame`
[INFO] [stderr]   --> src/instructions/base/instruction.rs:54:26
[INFO] [stderr]    |
[INFO] [stderr] 54 |     fn execute(&mut self,frame: &mut Frame) {
[INFO] [stderr]    |                          ^^^^^ help: consider prefixing with an underscore: `_frame`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `frame`
[INFO] [stderr]   --> src/instructions/base/instruction.rs:86:27
[INFO] [stderr]    |
[INFO] [stderr] 86 |     fn execute(&mut self, frame: &mut Frame) {
[INFO] [stderr]    |                           ^^^^^ help: consider prefixing with an underscore: `_frame`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `frame`
[INFO] [stderr]    --> src/instructions/base/instruction.rs:113:27
[INFO] [stderr]     |
[INFO] [stderr] 113 |     fn execute(&mut self, frame: &mut Frame) {
[INFO] [stderr]     |                           ^^^^^ help: consider prefixing with an underscore: `_frame`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `frame`
[INFO] [stderr]   --> src/instructions/constants/nop.rs:19:27
[INFO] [stderr]    |
[INFO] [stderr] 19 |     fn execute(&mut self, frame: &mut Frame) {
[INFO] [stderr]    |                           ^^^^^ help: consider prefixing with an underscore: `_frame`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/runtime_data_area/heap/class.rs:61:13
[INFO] [stderr]    |
[INFO] [stderr] 61 |         let mut class = Class{
[INFO] [stderr]    |             ----^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/runtime_data_area/heap/class.rs:78:13
[INFO] [stderr]    |
[INFO] [stderr] 78 |         let mut point = Rc::new(RefCell::new(class));
[INFO] [stderr]    |             ----^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `offset` is never read
[INFO] [stderr]   --> src/instructions/control/table_switch.rs:38:17
[INFO] [stderr]    |
[INFO] [stderr] 38 |         let mut offset = 0;
[INFO] [stderr]    |                 ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `current_frame`
[INFO] [stderr]    --> src/instructions/control/return.rs:149:17
[INFO] [stderr]     |
[INFO] [stderr] 149 |         let mut current_frame = (*thread).borrow_mut().pop_frame();
[INFO] [stderr]     |                 ^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_current_frame`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `slots`
[INFO] [stderr]   --> src/instructions/references/put_field.rs:43:13
[INFO] [stderr]    |
[INFO] [stderr] 43 |         let slots = class.borrow_mut().mut_static_vars().expect("slots is none");
[INFO] [stderr]    |             ^^^^^ help: consider prefixing with an underscore: `_slots`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/cmd.rs:25:13
[INFO] [stderr]    |
[INFO] [stderr] 25 |         let mut args = std::env::args();
[INFO] [stderr]    |             ----^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/class_path/class_path.rs:170:17
[INFO] [stderr]     |
[INFO] [stderr] 170 |             let mut file:ZipFile = zip.by_index(i).unwrap();
[INFO] [stderr]     |                 ----^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/runtime_data_area/heap/constant_pool.rs:32:13
[INFO] [stderr]    |
[INFO] [stderr] 32 |         let mut cp = Rc::new(RefCell::new(ConstantPool::none()));
[INFO] [stderr]    |             ----^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/runtime_data_area/heap/constant_pool.rs:66:13
[INFO] [stderr]    |
[INFO] [stderr] 66 |         let mut pool = Rc::new(RefCell::new(
[INFO] [stderr]    |             ----^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/class_path/composite_entry.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let mut mut_paths = paths.clone();
[INFO] [stderr]    |         ----^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/class_file/constant_pool.rs:26:13
[INFO] [stderr]    |
[INFO] [stderr] 26 |         let mut cp = Rc::new(RefCell::new(ConstantPool::new()));
[INFO] [stderr]    |             ----^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/class_file/constant_pool.rs:51:13
[INFO] [stderr]    |
[INFO] [stderr] 51 |         let mut c = Rc::new(RefCell::new(ConstantPool{vec}));
[INFO] [stderr]    |             ----^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/runtime_data_area/heap/class_loader.rs:78:13
[INFO] [stderr]    |
[INFO] [stderr] 78 |         let mut class = ClassLoader::parse_class(data);
[INFO] [stderr]    |             ----^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/class_file/constant_pool.rs:83:13
[INFO] [stderr]    |
[INFO] [stderr] 83 |         let mut inf = match info {
[INFO] [stderr]    |             ----^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/class_file/constant_pool.rs:94:13
[INFO] [stderr]    |
[INFO] [stderr] 94 |         let mut class = match info {
[INFO] [stderr]    |             ----^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/runtime_data_area/frame.rs:97:13
[INFO] [stderr]    |
[INFO] [stderr] 97 |         let mut frame = Frame::with_capacity(thread,100,100);
[INFO] [stderr]    |             ----^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/runtime_data_area/heap/class.rs:61:13
[INFO] [stderr]    |
[INFO] [stderr] 61 |         let mut class = Class{
[INFO] [stderr]    |             ----^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/runtime_data_area/heap/class.rs:78:13
[INFO] [stderr]    |
[INFO] [stderr] 78 |         let mut point = Rc::new(RefCell::new(class));
[INFO] [stderr]    |             ----^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/runtime_data_area/heap/constant_pool.rs:32:13
[INFO] [stderr]    |
[INFO] [stderr] 32 |         let mut cp = Rc::new(RefCell::new(ConstantPool::none()));
[INFO] [stderr]    |             ----^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/runtime_data_area/heap/constant_pool.rs:66:13
[INFO] [stderr]    |
[INFO] [stderr] 66 |         let mut pool = Rc::new(RefCell::new(
[INFO] [stderr]    |             ----^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/instructions/control/return.rs:41:13
[INFO] [stderr]    |
[INFO] [stderr] 41 |         let mut current_frame = (*thread).borrow_mut().pop_frame();
[INFO] [stderr]    |             ----^^^^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/instructions/control/return.rs:42:13
[INFO] [stderr]    |
[INFO] [stderr] 42 |         let mut borrow = (*thread).borrow_mut();
[INFO] [stderr]    |             ----^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/instructions/control/return.rs:68:13
[INFO] [stderr]    |
[INFO] [stderr] 68 |         let mut current_frame = (*thread).borrow_mut().pop_frame();
[INFO] [stderr]    |             ----^^^^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/instructions/control/return.rs:69:13
[INFO] [stderr]    |
[INFO] [stderr] 69 |         let mut borrow = (*thread).borrow_mut();
[INFO] [stderr]    |             ----^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/instructions/control/return.rs:95:13
[INFO] [stderr]    |
[INFO] [stderr] 95 |         let mut current_frame = (*thread).borrow_mut().pop_frame();
[INFO] [stderr]    |             ----^^^^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/runtime_data_area/heap/class_loader.rs:78:13
[INFO] [stderr]    |
[INFO] [stderr] 78 |         let mut class = ClassLoader::parse_class(data);
[INFO] [stderr]    |             ----^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/instructions/control/return.rs:96:13
[INFO] [stderr]    |
[INFO] [stderr] 96 |         let mut borrow = (*thread).borrow_mut();
[INFO] [stderr]    |             ----^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/instructions/control/return.rs:122:13
[INFO] [stderr]     |
[INFO] [stderr] 122 |         let mut current_frame = (*thread).borrow_mut().pop_frame();
[INFO] [stderr]     |             ----^^^^^^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/instructions/control/return.rs:123:13
[INFO] [stderr]     |
[INFO] [stderr] 123 |         let mut borrow = (*thread).borrow_mut();
[INFO] [stderr]     |             ----^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/instructions/control/return.rs:149:13
[INFO] [stderr]     |
[INFO] [stderr] 149 |         let mut current_frame = (*thread).borrow_mut().pop_frame();
[INFO] [stderr]     |             ----^^^^^^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/instructions/control/return.rs:150:13
[INFO] [stderr]     |
[INFO] [stderr] 150 |         let mut borrow = (*thread).borrow_mut();
[INFO] [stderr]     |             ----^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/interpreter.rs:22:18
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub fn circulate(mut thread:Rc<RefCell<Thread>>) {
[INFO] [stderr]    |                  ----^^^^^^
[INFO] [stderr]    |                  |
[INFO] [stderr]    |                  help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_to_vec`
[INFO] [stderr]   --> src/class_path/class_path.rs:37:8
[INFO] [stderr]    |
[INFO] [stderr] 37 | pub fn read_to_vec(file:File) -> Vec<u8> {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `minor_version`
[INFO] [stderr]   --> src/class_file/class_file.rs:77:5
[INFO] [stderr]    |
[INFO] [stderr] 77 |     pub fn minor_version(&self) -> u16 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `major_version`
[INFO] [stderr]   --> src/class_file/class_file.rs:81:5
[INFO] [stderr]    |
[INFO] [stderr] 81 |     pub fn major_version(&self) -> u16 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `StackMap`
[INFO] [stderr]   --> src/class_file/attribute_info.rs:68:5
[INFO] [stderr]    |
[INFO] [stderr] 68 |     StackMap(StackMapAttribute),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Signature`
[INFO] [stderr]   --> src/class_file/attribute_info.rs:69:5
[INFO] [stderr]    |
[INFO] [stderr] 69 |     Signature(SignatureAttribute),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `LocalVariableTypeTable`
[INFO] [stderr]   --> src/class_file/attribute_info.rs:72:5
[INFO] [stderr]    |
[INFO] [stderr] 72 |     LocalVariableTypeTable(LocalVariableTypeTableAttribute),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `InnerClasses`
[INFO] [stderr]   --> src/class_file/attribute_info.rs:75:5
[INFO] [stderr]    |
[INFO] [stderr] 75 |     InnerClasses(InnerClassesAttribute),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `EnclosingMethod`
[INFO] [stderr]   --> src/class_file/attribute_info.rs:77:5
[INFO] [stderr]    |
[INFO] [stderr] 77 |     EnclosingMethod(EnclosingMethodAttribute),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/class_file/code_attribute.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub fn new() -> CodeAttribute {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `exception_table`
[INFO] [stderr]   --> src/class_file/code_attribute.rs:55:5
[INFO] [stderr]    |
[INFO] [stderr] 55 |     pub fn exception_table(&self) -> &Vec<ExceptionTableEntry> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `display`
[INFO] [stderr]   --> src/class_file/code_attribute.rs:59:5
[INFO] [stderr]    |
[INFO] [stderr] 59 |     pub fn display(&self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `start_pc`
[INFO] [stderr]   --> src/class_file/code_attribute.rs:81:5
[INFO] [stderr]    |
[INFO] [stderr] 81 |     start_pc:u16,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `end_pc`
[INFO] [stderr]   --> src/class_file/code_attribute.rs:82:5
[INFO] [stderr]    |
[INFO] [stderr] 82 |     end_pc:u16,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `handler_pc`
[INFO] [stderr]   --> src/class_file/code_attribute.rs:83:5
[INFO] [stderr]    |
[INFO] [stderr] 83 |     handler_pc:u16,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `catch_type`
[INFO] [stderr]   --> src/class_file/code_attribute.rs:84:5
[INFO] [stderr]    |
[INFO] [stderr] 84 |     catch_type:u16
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `start_pc`
[INFO] [stderr]    --> src/class_file/code_attribute.rs:103:5
[INFO] [stderr]     |
[INFO] [stderr] 103 |     pub fn start_pc(&self) -> u16 {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `end_pc`
[INFO] [stderr]    --> src/class_file/code_attribute.rs:108:5
[INFO] [stderr]     |
[INFO] [stderr] 108 |     pub fn end_pc(&self) -> u16 {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `handler_pc`
[INFO] [stderr]    --> src/class_file/code_attribute.rs:113:5
[INFO] [stderr]     |
[INFO] [stderr] 113 |     pub fn handler_pc(&self) -> u16 {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `catch_type`
[INFO] [stderr]    --> src/class_file/code_attribute.rs:118:5
[INFO] [stderr]     |
[INFO] [stderr] 118 |     pub fn catch_type(&self) -> u16 {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `name`
[INFO] [stderr]  --> src/class_file/unparsed_attribute.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     name:String,
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `cp`
[INFO] [stderr]  --> src/class_file/source_file_attribute.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     cp:Rc<RefCell<ConstantPool>>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/class_file/source_file_attribute.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     pub fn new() -> SourceFileAttribute {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `file_name`
[INFO] [stderr]   --> src/class_file/source_file_attribute.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn file_name(&self) -> String {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `exception_index_table`
[INFO] [stderr]   --> src/class_file/exceptions_attribute.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     pub fn exception_index_table(&self) -> &Vec<u16> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `start_pc`
[INFO] [stderr]   --> src/class_file/line_number_table_attribute.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     start_pc:u16,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `line_number`
[INFO] [stderr]   --> src/class_file/line_number_table_attribute.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     line_number:u16
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_line_number`
[INFO] [stderr]   --> src/class_file/line_number_table_attribute.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     pub fn get_line_number(&self,pc:u16) -> i32 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `start_pc`
[INFO] [stderr]  --> src/class_file/local_variable_table_attribute.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     start_pc:u16,
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `length`
[INFO] [stderr]   --> src/class_file/local_variable_table_attribute.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     length:u16,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `name_index`
[INFO] [stderr]   --> src/class_file/local_variable_table_attribute.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     name_index:u16,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `descriptor_index`
[INFO] [stderr]   --> src/class_file/local_variable_table_attribute.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     descriptor_index:u16,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `index`
[INFO] [stderr]   --> src/class_file/local_variable_table_attribute.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     index:u16,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `bootstrap_method_ref`
[INFO] [stderr]  --> src/class_file/bootstrap_methods_attribute.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     bootstrap_method_ref:u16,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `bootstrap_arguments`
[INFO] [stderr]   --> src/class_file/bootstrap_methods_attribute.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     bootstrap_arguments:Vec<u16>
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `cp`
[INFO] [stderr]  --> src/class_file/enclosing_method_attribute.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     cp:Rc<ConstantPool>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `class_name`
[INFO] [stderr]   --> src/class_file/enclosing_method_attribute.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     pub fn class_name(&self) -> &str {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `method_name_and_descriptor`
[INFO] [stderr]   --> src/class_file/enclosing_method_attribute.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub fn method_name_and_descriptor(&self) -> (&str,&str) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `inner_class_info_index`
[INFO] [stderr]  --> src/class_file/inner_classes_attribute.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     inner_class_info_index:u16,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `outer_class_info_index`
[INFO] [stderr]   --> src/class_file/inner_classes_attribute.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     outer_class_info_index:u16,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `inner_name_index`
[INFO] [stderr]   --> src/class_file/inner_classes_attribute.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     inner_name_index:u16,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `inner_class_access_flags`
[INFO] [stderr]   --> src/class_file/inner_classes_attribute.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     inner_class_access_flags:u16,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `start_pc`
[INFO] [stderr]  --> src/class_file/local_variable_type_table_attribute.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     start_pc:u16,
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `length`
[INFO] [stderr]   --> src/class_file/local_variable_type_table_attribute.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     length:u16,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `name_index`
[INFO] [stderr]   --> src/class_file/local_variable_type_table_attribute.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     name_index:u16,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `signature_index`
[INFO] [stderr]   --> src/class_file/local_variable_type_table_attribute.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     signature_index:u16,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `index`
[INFO] [stderr]   --> src/class_file/local_variable_type_table_attribute.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     index:u16
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `cp`
[INFO] [stderr]  --> src/class_file/signature_attribute.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     cp:Rc<ConstantPool>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `signature`
[INFO] [stderr]   --> src/class_file/signature_attribute.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     pub fn signature(&self) -> &str {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `entries`
[INFO] [stderr]  --> src/class_file/stack_map_table_attribute.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     entries:Vec<FrameType>
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/class_file/stack_map_table_attribute.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     pub fn new(len:u32) -> StackMapAttribute {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `frame_type`
[INFO] [stderr]   --> src/class_file/stack_map_table_attribute.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     frame_type:Vec<u8>
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `with_capacity`
[INFO] [stderr]   --> src/runtime_data_area/frame.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     pub fn with_capacity(thread:Rc<RefCell<Thread>>,max_locals:usize,max_stack:usize) -> Frame {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_final`
[INFO] [stderr]   --> src/runtime_data_area/heap/class.rs:91:5
[INFO] [stderr]    |
[INFO] [stderr] 91 |     pub fn is_final(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_synthetic`
[INFO] [stderr]    --> src/runtime_data_area/heap/class.rs:111:5
[INFO] [stderr]     |
[INFO] [stderr] 111 |     pub fn is_synthetic(&self) -> bool {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_annotation`
[INFO] [stderr]    --> src/runtime_data_area/heap/class.rs:116:5
[INFO] [stderr]     |
[INFO] [stderr] 116 |     pub fn is_annotation(&self) -> bool {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_enum`
[INFO] [stderr]    --> src/runtime_data_area/heap/class.rs:121:5
[INFO] [stderr]     |
[INFO] [stderr] 121 |     pub fn is_enum(&self) -> bool {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `mut_fields`
[INFO] [stderr]    --> src/runtime_data_area/heap/class.rs:317:5
[INFO] [stderr]     |
[INFO] [stderr] 317 |     pub fn mut_fields(&mut self) -> &mut Vec<Rc<RefCell<Field>>> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `AccessFlag`
[INFO] [stderr]  --> src/runtime_data_area/heap/access_flags.rs:3:10
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub enum AccessFlag {
[INFO] [stderr]   |          ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `SYNCHRONIZED`
[INFO] [stderr]   --> src/runtime_data_area/heap/access_flags.rs:30:1
[INFO] [stderr]    |
[INFO] [stderr] 30 | pub const SYNCHRONIZED:u16 = 0x0020;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `VOLATILE`
[INFO] [stderr]   --> src/runtime_data_area/heap/access_flags.rs:31:1
[INFO] [stderr]    |
[INFO] [stderr] 31 | pub const VOLATILE:u16 = 0x0040;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `BRIDGE`
[INFO] [stderr]   --> src/runtime_data_area/heap/access_flags.rs:32:1
[INFO] [stderr]    |
[INFO] [stderr] 32 | pub const BRIDGE:u16 = 0x0040;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `TRANSIENT`
[INFO] [stderr]   --> src/runtime_data_area/heap/access_flags.rs:33:1
[INFO] [stderr]    |
[INFO] [stderr] 33 | pub const TRANSIENT:u16 = 0x0080;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `VARARGS`
[INFO] [stderr]   --> src/runtime_data_area/heap/access_flags.rs:34:1
[INFO] [stderr]    |
[INFO] [stderr] 34 | pub const VARARGS:u16 = 0x0080;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `STRICT`
[INFO] [stderr]   --> src/runtime_data_area/heap/access_flags.rs:38:1
[INFO] [stderr]    |
[INFO] [stderr] 38 | pub const STRICT:u16 = 0x0800;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `SYNTHETIC`
[INFO] [stderr]   --> src/runtime_data_area/heap/access_flags.rs:39:1
[INFO] [stderr]    |
[INFO] [stderr] 39 | pub const SYNTHETIC:u16 = 0x1000;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `ANNOTATION`
[INFO] [stderr]   --> src/runtime_data_area/heap/access_flags.rs:40:1
[INFO] [stderr]    |
[INFO] [stderr] 40 | pub const ANNOTATION:u16 = 0x2000;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `ENUM`
[INFO] [stderr]   --> src/runtime_data_area/heap/access_flags.rs:41:1
[INFO] [stderr]    |
[INFO] [stderr] 41 | pub const ENUM:u16 = 0x4000;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_synthetic`
[INFO] [stderr]   --> src/runtime_data_area/heap/class_member.rs:86:5
[INFO] [stderr]    |
[INFO] [stderr] 86 |     pub fn is_synthetic(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/runtime_data_area/heap/slots.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     pub fn new(slots:Vec<Slot>) -> Slots {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `size`
[INFO] [stderr]    --> src/runtime_data_area/heap/constant_pool.rs:115:5
[INFO] [stderr]     |
[INFO] [stderr] 115 |     pub fn size(&self) -> usize {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/runtime_data_area/heap/sym_ref.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     pub fn new() -> SymRef{
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `class_map`
[INFO] [stderr]   --> src/runtime_data_area/heap/class_loader.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     pub fn class_map(&mut self) -> &mut HashMap<String,Rc<RefCell<Class>>> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `class_map_immutable`
[INFO] [stderr]   --> src/runtime_data_area/heap/class_loader.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     pub fn class_map_immutable(&self) -> &HashMap<String,Rc<RefCell<Class>>> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `load_class`
[INFO] [stderr]   --> src/main.rs:54:4
[INFO] [stderr]    |
[INFO] [stderr] 54 | fn load_class(class_name:&String,cp:&ClassPath) -> ClassFile {
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/instructions/control/return.rs:41:13
[INFO] [stderr]    |
[INFO] [stderr] 41 |         let mut current_frame = (*thread).borrow_mut().pop_frame();
[INFO] [stderr]    |             ----^^^^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/instructions/control/return.rs:42:13
[INFO] [stderr]    |
[INFO] [stderr] 42 |         let mut borrow = (*thread).borrow_mut();
[INFO] [stderr]    |             ----^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/instructions/control/return.rs:68:13
[INFO] [stderr]    |
[INFO] [stderr] 68 |         let mut current_frame = (*thread).borrow_mut().pop_frame();
[INFO] [stderr]    |             ----^^^^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `methodHandle` should have a snake case name
[INFO] [stderr]    --> src/class_file/constant_pool.rs:196:26
[INFO] [stderr]     |
[INFO] [stderr] 196 |             MethodHandle(methodHandle) => methodHandle.read_info(reader),
[INFO] [stderr]     |                          ^^^^^^^^^^^^ help: convert the identifier to snake case: `method_handle`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/instructions/control/return.rs:69:13
[INFO] [stderr]    |
[INFO] [stderr] 69 |         let mut borrow = (*thread).borrow_mut();
[INFO] [stderr]    |             ----^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `methodType` should have a snake case name
[INFO] [stderr]    --> src/class_file/constant_pool.rs:197:24
[INFO] [stderr]     |
[INFO] [stderr] 197 |             MethodType(methodType) => methodType.read_info(reader),
[INFO] [stderr]     |                        ^^^^^^^^^^ help: convert the identifier to snake case: `method_type`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/instructions/control/return.rs:95:13
[INFO] [stderr]    |
[INFO] [stderr] 95 |         let mut current_frame = (*thread).borrow_mut().pop_frame();
[INFO] [stderr]    |             ----^^^^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/instructions/control/return.rs:96:13
[INFO] [stderr]    |
[INFO] [stderr] 96 |         let mut borrow = (*thread).borrow_mut();
[INFO] [stderr]    |             ----^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/instructions/control/return.rs:122:13
[INFO] [stderr]     |
[INFO] [stderr] 122 |         let mut current_frame = (*thread).borrow_mut().pop_frame();
[INFO] [stderr]     |             ----^^^^^^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/instructions/control/return.rs:123:13
[INFO] [stderr]     |
[INFO] [stderr] 123 |         let mut borrow = (*thread).borrow_mut();
[INFO] [stderr]     |             ----^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/instructions/control/return.rs:149:13
[INFO] [stderr]     |
[INFO] [stderr] 149 |         let mut current_frame = (*thread).borrow_mut().pop_frame();
[INFO] [stderr]     |             ----^^^^^^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/instructions/control/return.rs:150:13
[INFO] [stderr]     |
[INFO] [stderr] 150 |         let mut borrow = (*thread).borrow_mut();
[INFO] [stderr]     |             ----^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/interpreter.rs:22:18
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub fn circulate(mut thread:Rc<RefCell<Thread>>) {
[INFO] [stderr]    |                  ----^^^^^^
[INFO] [stderr]    |                  |
[INFO] [stderr]    |                  help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/interpreter.rs:55:13
[INFO] [stderr]    |
[INFO] [stderr] 55 |         let mut vec = vec![0,1,2,3];
[INFO] [stderr]    |             ----^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/interpreter.rs:56:13
[INFO] [stderr]    |
[INFO] [stderr] 56 |         let mut rc = Rc::new(vec);
[INFO] [stderr]    |             ----^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_to_vec`
[INFO] [stderr]   --> src/class_path/class_path.rs:37:8
[INFO] [stderr]    |
[INFO] [stderr] 37 | pub fn read_to_vec(file:File) -> Vec<u8> {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_to_vec`
[INFO] [stderr]    --> src/class_path/class_path.rs:175:8
[INFO] [stderr]     |
[INFO] [stderr] 175 |     fn read_to_vec(file:File) -> Vec<u8> {
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `minor_version`
[INFO] [stderr]   --> src/class_file/class_file.rs:77:5
[INFO] [stderr]    |
[INFO] [stderr] 77 |     pub fn minor_version(&self) -> u16 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `major_version`
[INFO] [stderr]   --> src/class_file/class_file.rs:81:5
[INFO] [stderr]    |
[INFO] [stderr] 81 |     pub fn major_version(&self) -> u16 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `to_string`
[INFO] [stderr]    --> src/class_file/constant_pool.rs:550:9
[INFO] [stderr]     |
[INFO] [stderr] 550 |         pub fn to_string(&self) -> String {
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `StackMap`
[INFO] [stderr]   --> src/class_file/attribute_info.rs:68:5
[INFO] [stderr]    |
[INFO] [stderr] 68 |     StackMap(StackMapAttribute),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Signature`
[INFO] [stderr]   --> src/class_file/attribute_info.rs:69:5
[INFO] [stderr]    |
[INFO] [stderr] 69 |     Signature(SignatureAttribute),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `LocalVariableTypeTable`
[INFO] [stderr]   --> src/class_file/attribute_info.rs:72:5
[INFO] [stderr]    |
[INFO] [stderr] 72 |     LocalVariableTypeTable(LocalVariableTypeTableAttribute),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `InnerClasses`
[INFO] [stderr]   --> src/class_file/attribute_info.rs:75:5
[INFO] [stderr]    |
[INFO] [stderr] 75 |     InnerClasses(InnerClassesAttribute),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `EnclosingMethod`
[INFO] [stderr]   --> src/class_file/attribute_info.rs:77:5
[INFO] [stderr]    |
[INFO] [stderr] 77 |     EnclosingMethod(EnclosingMethodAttribute),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/class_file/code_attribute.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub fn new() -> CodeAttribute {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `exception_table`
[INFO] [stderr]   --> src/class_file/code_attribute.rs:55:5
[INFO] [stderr]    |
[INFO] [stderr] 55 |     pub fn exception_table(&self) -> &Vec<ExceptionTableEntry> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `display`
[INFO] [stderr]   --> src/class_file/code_attribute.rs:59:5
[INFO] [stderr]    |
[INFO] [stderr] 59 |     pub fn display(&self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `start_pc`
[INFO] [stderr]   --> src/class_file/code_attribute.rs:81:5
[INFO] [stderr]    |
[INFO] [stderr] 81 |     start_pc:u16,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `end_pc`
[INFO] [stderr]   --> src/class_file/code_attribute.rs:82:5
[INFO] [stderr]    |
[INFO] [stderr] 82 |     end_pc:u16,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `handler_pc`
[INFO] [stderr]   --> src/class_file/code_attribute.rs:83:5
[INFO] [stderr]    |
[INFO] [stderr] 83 |     handler_pc:u16,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `catch_type`
[INFO] [stderr]   --> src/class_file/code_attribute.rs:84:5
[INFO] [stderr]    |
[INFO] [stderr] 84 |     catch_type:u16
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `start_pc`
[INFO] [stderr]    --> src/class_file/code_attribute.rs:103:5
[INFO] [stderr]     |
[INFO] [stderr] 103 |     pub fn start_pc(&self) -> u16 {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `end_pc`
[INFO] [stderr]    --> src/class_file/code_attribute.rs:108:5
[INFO] [stderr]     |
[INFO] [stderr] 108 |     pub fn end_pc(&self) -> u16 {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `handler_pc`
[INFO] [stderr]    --> src/class_file/code_attribute.rs:113:5
[INFO] [stderr]     |
[INFO] [stderr] 113 |     pub fn handler_pc(&self) -> u16 {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `catch_type`
[INFO] [stderr]    --> src/class_file/code_attribute.rs:118:5
[INFO] [stderr]     |
[INFO] [stderr] 118 |     pub fn catch_type(&self) -> u16 {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `name`
[INFO] [stderr]  --> src/class_file/unparsed_attribute.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     name:String,
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `cp`
[INFO] [stderr]  --> src/class_file/source_file_attribute.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     cp:Rc<RefCell<ConstantPool>>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/class_file/source_file_attribute.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     pub fn new() -> SourceFileAttribute {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `file_name`
[INFO] [stderr]   --> src/class_file/source_file_attribute.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn file_name(&self) -> String {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `exception_index_table`
[INFO] [stderr]   --> src/class_file/exceptions_attribute.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     pub fn exception_index_table(&self) -> &Vec<u16> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `start_pc`
[INFO] [stderr]   --> src/class_file/line_number_table_attribute.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     start_pc:u16,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `line_number`
[INFO] [stderr]   --> src/class_file/line_number_table_attribute.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     line_number:u16
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_line_number`
[INFO] [stderr]   --> src/class_file/line_number_table_attribute.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     pub fn get_line_number(&self,pc:u16) -> i32 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `start_pc`
[INFO] [stderr]  --> src/class_file/local_variable_table_attribute.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     start_pc:u16,
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `length`
[INFO] [stderr]   --> src/class_file/local_variable_table_attribute.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     length:u16,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `name_index`
[INFO] [stderr]   --> src/class_file/local_variable_table_attribute.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     name_index:u16,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `descriptor_index`
[INFO] [stderr]   --> src/class_file/local_variable_table_attribute.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     descriptor_index:u16,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `index`
[INFO] [stderr]   --> src/class_file/local_variable_table_attribute.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     index:u16,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `bootstrap_method_ref`
[INFO] [stderr]  --> src/class_file/bootstrap_methods_attribute.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     bootstrap_method_ref:u16,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `bootstrap_arguments`
[INFO] [stderr]   --> src/class_file/bootstrap_methods_attribute.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     bootstrap_arguments:Vec<u16>
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `cp`
[INFO] [stderr]  --> src/class_file/enclosing_method_attribute.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     cp:Rc<ConstantPool>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `class_name`
[INFO] [stderr]   --> src/class_file/enclosing_method_attribute.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     pub fn class_name(&self) -> &str {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `method_name_and_descriptor`
[INFO] [stderr]   --> src/class_file/enclosing_method_attribute.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub fn method_name_and_descriptor(&self) -> (&str,&str) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `inner_class_info_index`
[INFO] [stderr]  --> src/class_file/inner_classes_attribute.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     inner_class_info_index:u16,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `outer_class_info_index`
[INFO] [stderr]   --> src/class_file/inner_classes_attribute.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     outer_class_info_index:u16,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `inner_name_index`
[INFO] [stderr]   --> src/class_file/inner_classes_attribute.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     inner_name_index:u16,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `inner_class_access_flags`
[INFO] [stderr]   --> src/class_file/inner_classes_attribute.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     inner_class_access_flags:u16,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `start_pc`
[INFO] [stderr]  --> src/class_file/local_variable_type_table_attribute.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     start_pc:u16,
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `length`
[INFO] [stderr]   --> src/class_file/local_variable_type_table_attribute.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     length:u16,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `name_index`
[INFO] [stderr]   --> src/class_file/local_variable_type_table_attribute.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     name_index:u16,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `signature_index`
[INFO] [stderr]   --> src/class_file/local_variable_type_table_attribute.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     signature_index:u16,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `index`
[INFO] [stderr]   --> src/class_file/local_variable_type_table_attribute.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     index:u16
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `cp`
[INFO] [stderr]  --> src/class_file/signature_attribute.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     cp:Rc<ConstantPool>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `signature`
[INFO] [stderr]   --> src/class_file/signature_attribute.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     pub fn signature(&self) -> &str {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `entries`
[INFO] [stderr]  --> src/class_file/stack_map_table_attribute.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     entries:Vec<FrameType>
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/class_file/stack_map_table_attribute.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     pub fn new(len:u32) -> StackMapAttribute {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `frame_type`
[INFO] [stderr]   --> src/class_file/stack_map_table_attribute.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     frame_type:Vec<u8>
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_final`
[INFO] [stderr]   --> src/runtime_data_area/heap/class.rs:91:5
[INFO] [stderr]    |
[INFO] [stderr] 91 |     pub fn is_final(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_synthetic`
[INFO] [stderr]    --> src/runtime_data_area/heap/class.rs:111:5
[INFO] [stderr]     |
[INFO] [stderr] 111 |     pub fn is_synthetic(&self) -> bool {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_annotation`
[INFO] [stderr]    --> src/runtime_data_area/heap/class.rs:116:5
[INFO] [stderr]     |
[INFO] [stderr] 116 |     pub fn is_annotation(&self) -> bool {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_enum`
[INFO] [stderr]    --> src/runtime_data_area/heap/class.rs:121:5
[INFO] [stderr]     |
[INFO] [stderr] 121 |     pub fn is_enum(&self) -> bool {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `mut_fields`
[INFO] [stderr]    --> src/runtime_data_area/heap/class.rs:317:5
[INFO] [stderr]     |
[INFO] [stderr] 317 |     pub fn mut_fields(&mut self) -> &mut Vec<Rc<RefCell<Field>>> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `AccessFlag`
[INFO] [stderr]  --> src/runtime_data_area/heap/access_flags.rs:3:10
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub enum AccessFlag {
[INFO] [stderr]   |          ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `SYNCHRONIZED`
[INFO] [stderr]   --> src/runtime_data_area/heap/access_flags.rs:30:1
[INFO] [stderr]    |
[INFO] [stderr] 30 | pub const SYNCHRONIZED:u16 = 0x0020;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `VOLATILE`
[INFO] [stderr]   --> src/runtime_data_area/heap/access_flags.rs:31:1
[INFO] [stderr]    |
[INFO] [stderr] 31 | pub const VOLATILE:u16 = 0x0040;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `BRIDGE`
[INFO] [stderr]   --> src/runtime_data_area/heap/access_flags.rs:32:1
[INFO] [stderr]    |
[INFO] [stderr] 32 | pub const BRIDGE:u16 = 0x0040;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `TRANSIENT`
[INFO] [stderr]   --> src/runtime_data_area/heap/access_flags.rs:33:1
[INFO] [stderr]    |
[INFO] [stderr] 33 | pub const TRANSIENT:u16 = 0x0080;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `VARARGS`
[INFO] [stderr]   --> src/runtime_data_area/heap/access_flags.rs:34:1
[INFO] [stderr]    |
[INFO] [stderr] 34 | pub const VARARGS:u16 = 0x0080;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `STRICT`
[INFO] [stderr]   --> src/runtime_data_area/heap/access_flags.rs:38:1
[INFO] [stderr]    |
[INFO] [stderr] 38 | pub const STRICT:u16 = 0x0800;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `SYNTHETIC`
[INFO] [stderr]   --> src/runtime_data_area/heap/access_flags.rs:39:1
[INFO] [stderr]    |
[INFO] [stderr] 39 | pub const SYNTHETIC:u16 = 0x1000;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `ANNOTATION`
[INFO] [stderr]   --> src/runtime_data_area/heap/access_flags.rs:40:1
[INFO] [stderr]    |
[INFO] [stderr] 40 | pub const ANNOTATION:u16 = 0x2000;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `ENUM`
[INFO] [stderr]   --> src/runtime_data_area/heap/access_flags.rs:41:1
[INFO] [stderr]    |
[INFO] [stderr] 41 | pub const ENUM:u16 = 0x4000;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_synthetic`
[INFO] [stderr]   --> src/runtime_data_area/heap/class_member.rs:86:5
[INFO] [stderr]    |
[INFO] [stderr] 86 |     pub fn is_synthetic(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/runtime_data_area/heap/slots.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     pub fn new(slots:Vec<Slot>) -> Slots {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `size`
[INFO] [stderr]    --> src/runtime_data_area/heap/constant_pool.rs:115:5
[INFO] [stderr]     |
[INFO] [stderr] 115 |     pub fn size(&self) -> usize {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/runtime_data_area/heap/sym_ref.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     pub fn new() -> SymRef{
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `class_map`
[INFO] [stderr]   --> src/runtime_data_area/heap/class_loader.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     pub fn class_map(&mut self) -> &mut HashMap<String,Rc<RefCell<Class>>> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `class_map_immutable`
[INFO] [stderr]   --> src/runtime_data_area/heap/class_loader.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     pub fn class_map_immutable(&self) -> &HashMap<String,Rc<RefCell<Class>>> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `load_class`
[INFO] [stderr]   --> src/main.rs:54:4
[INFO] [stderr]    |
[INFO] [stderr] 54 | fn load_class(class_name:&String,cp:&ClassPath) -> ClassFile {
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `methodHandle` should have a snake case name
[INFO] [stderr]    --> src/class_file/constant_pool.rs:196:26
[INFO] [stderr]     |
[INFO] [stderr] 196 |             MethodHandle(methodHandle) => methodHandle.read_info(reader),
[INFO] [stderr]     |                          ^^^^^^^^^^^^ help: convert the identifier to snake case: `method_handle`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `methodType` should have a snake case name
[INFO] [stderr]    --> src/class_file/constant_pool.rs:197:24
[INFO] [stderr]     |
[INFO] [stderr] 197 |             MethodType(methodType) => methodType.read_info(reader),
[INFO] [stderr]     |                        ^^^^^^^^^^ help: convert the identifier to snake case: `method_type`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.92s
[INFO] running `"docker" "inspect" "3a266ca5ad9b6f53ddae3836ad9b4c54bf88404ca94ec87ca9f4bc58a110b549"`
[INFO] running `"docker" "rm" "-f" "3a266ca5ad9b6f53ddae3836ad9b4c54bf88404ca94ec87ca9f4bc58a110b549"`
[INFO] [stdout] 3a266ca5ad9b6f53ddae3836ad9b4c54bf88404ca94ec87ca9f4bc58a110b549