[INFO] cloning repository https://github.com/Kokoro2336/pku-minic-kokoro2336
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Kokoro2336/pku-minic-kokoro2336" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKokoro2336%2Fpku-minic-kokoro2336", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKokoro2336%2Fpku-minic-kokoro2336'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 92faca6067ecd4653387dd0eca9ef7eeadd4d95a
[INFO] checking Kokoro2336/pku-minic-kokoro2336 against try#0f31acebf540c89e4a4d5d114959fe91973419cb for pr-147017
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKokoro2336%2Fpku-minic-kokoro2336" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Kokoro2336/pku-minic-kokoro2336
[INFO] finished tweaking git repo https://github.com/Kokoro2336/pku-minic-kokoro2336
[INFO] tweaked toml for git repo https://github.com/Kokoro2336/pku-minic-kokoro2336 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Kokoro2336/pku-minic-kokoro2336 on toolchain 0f31acebf540c89e4a4d5d114959fe91973419cb
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0f31acebf540c89e4a4d5d114959fe91973419cb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Kokoro2336/pku-minic-kokoro2336 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0f31acebf540c89e4a4d5d114959fe91973419cb" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking Kokoro2336/pku-minic-kokoro2336 against try#0f31acebf540c89e4a4d5d114959fe91973419cb for pr-147017
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKokoro2336%2Fpku-minic-kokoro2336" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Kokoro2336/pku-minic-kokoro2336
[INFO] finished tweaking git repo https://github.com/Kokoro2336/pku-minic-kokoro2336
[INFO] tweaked toml for git repo https://github.com/Kokoro2336/pku-minic-kokoro2336 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Kokoro2336/pku-minic-kokoro2336 on toolchain 0f31acebf540c89e4a4d5d114959fe91973419cb
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0f31acebf540c89e4a4d5d114959fe91973419cb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Kokoro2336/pku-minic-kokoro2336 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0f31acebf540c89e4a4d5d114959fe91973419cb" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lalrpop-util v0.19.12
[INFO] [stderr]   Downloaded textwrap v0.15.2
[INFO] [stderr]   Downloaded cc v1.2.36
[INFO] [stderr]   Downloaded lalrpop v0.19.12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+0f31acebf540c89e4a4d5d114959fe91973419cb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dfbd2fa7c5bc530f562cd906a919b5a1ebb29c0c96c0f191dbd186605ba245c7
[INFO] running `Command { std: "docker" "start" "-a" "dfbd2fa7c5bc530f562cd906a919b5a1ebb29c0c96c0f191dbd186605ba245c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dfbd2fa7c5bc530f562cd906a919b5a1ebb29c0c96c0f191dbd186605ba245c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfbd2fa7c5bc530f562cd906a919b5a1ebb29c0c96c0f191dbd186605ba245c7", kill_on_drop: false }`
[INFO] [stdout] dfbd2fa7c5bc530f562cd906a919b5a1ebb29c0c96c0f191dbd186605ba245c7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+0f31acebf540c89e4a4d5d114959fe91973419cb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c1a15d50a497eb12f611904bf132701dbade4081126185d3a019b42a7d3b8d95
[INFO] running `Command { std: "docker" "start" "-a" "c1a15d50a497eb12f611904bf132701dbade4081126185d3a019b42a7d3b8d95", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]    Compiling cfg-if v1.0.3
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[INFO] [stderr]    Compiling memchr v2.7.5
[INFO] [stderr]    Compiling crunchy v0.2.4
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling regex-syntax v0.8.6
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling hashbrown v0.15.5
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling lock_api v0.4.13
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.6
[INFO] [stderr]    Compiling fixedbitset v0.4.2
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling ena v0.14.3
[INFO] [stderr]    Compiling unicode-xid v0.2.6
[INFO] [stderr]    Compiling regex-syntax v0.6.29
[INFO] [stderr]    Compiling diff v0.1.13
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling bit-set v0.5.3
[INFO] [stderr]     Checking clap_builder v4.4.18
[INFO] [stderr]     Checking smawk v0.3.2
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking iana-time-zone v0.1.63
[INFO] [stderr]     Checking textwrap v0.15.2
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling indexmap v2.11.0
[INFO] [stderr]     Checking chrono v0.4.41
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling is-terminal v0.4.16
[INFO] [stderr]    Compiling petgraph v0.6.5
[INFO] [stderr]    Compiling parking_lot v0.12.4
[INFO] [stderr]    Compiling dirs-next v2.0.0
[INFO] [stderr]    Compiling term v0.7.0
[INFO] [stderr]    Compiling ascii-canvas v3.0.0
[INFO] [stderr]    Compiling string_cache v0.8.9
[INFO] [stderr]     Checking regex-automata v0.4.10
[INFO] [stderr]    Compiling clap_derive v4.4.7
[INFO] [stderr]     Checking regex v1.11.2
[INFO] [stderr]     Checking lalrpop-util v0.19.12
[INFO] [stderr]    Compiling lalrpop v0.19.12
[INFO] [stderr]     Checking clap v4.4.18
[INFO] [stderr]    Compiling sysy_compiler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `util::*`
[INFO] [stdout]  --> src/util/mod.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub use util::*;
[INFO] [stdout]   |         ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `util::*`
[INFO] [stdout]  --> src/util/mod.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub use util::*;
[INFO] [stdout]   |         ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Asm` is never constructed
[INFO] [stdout]  --> src/asm/asm.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Asm {
[INFO] [stdout]   |            ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `new` and `from` are never used
[INFO] [stdout]   --> src/asm/asm.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 38 | impl Asm {
[INFO] [stdout]    | -------- associated functions in this implementation
[INFO] [stdout] 39 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 46 |     pub fn from(program: &Program) -> Result<Self, Box<dyn std::error::Error>> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AsmGlobalVal` is never constructed
[INFO] [stdout]   --> src/asm/asm.rs:64:12
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub struct AsmGlobalVal {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/asm/asm.rs:78:12
[INFO] [stdout]    |
[INFO] [stdout] 77 | impl AsmGlobalVal {
[INFO] [stdout]    | ----------------- associated function in this implementation
[INFO] [stdout] 78 |     pub fn new(name: String, val: i32) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AsmBlock` is never constructed
[INFO] [stdout]   --> src/asm/asm.rs:83:12
[INFO] [stdout]    |
[INFO] [stdout] 83 | pub struct AsmBlock {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `new` and `from` are never used
[INFO] [stdout]    --> src/asm/asm.rs:99:12
[INFO] [stdout]     |
[INFO] [stdout]  98 | impl AsmBlock {
[INFO] [stdout]     | ------------- associated functions in this implementation
[INFO] [stdout]  99 |     pub fn new(label: String) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 106 |     pub fn from(func: Ref<'_, Func>) -> Self {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AsmInst` is never constructed
[INFO] [stdout]    --> src/asm/asm.rs:124:12
[INFO] [stdout]     |
[INFO] [stdout] 124 | pub struct AsmInst {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from` is never used
[INFO] [stdout]    --> src/asm/asm.rs:153:12
[INFO] [stdout]     |
[INFO] [stdout] 152 | impl AsmInst {
[INFO] [stdout]     | ------------ associated function in this implementation
[INFO] [stdout] 153 |     pub fn from(inst_data: &InstData) -> Vec<Self> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `RVOpCode` is never used
[INFO] [stdout]  --> src/asm/config.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub enum RVOpCode {
[INFO] [stdout]   |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `RVReg` is never used
[INFO] [stdout]   --> src/asm/config.rs:15:10
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub enum RVReg {
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CompUnit` is never constructed
[INFO] [stdout]  --> src/ast/ast.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct CompUnit {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FuncDef` is never constructed
[INFO] [stdout]   --> src/ast/ast.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct FuncDef {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Block` is never constructed
[INFO] [stdout]   --> src/ast/ast.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct Block {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Stmt` is never constructed
[INFO] [stdout]   --> src/ast/ast.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct Stmt {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Program` is never constructed
[INFO] [stdout]  --> src/koopa_ir/koopa_ir.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct Program {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `push_global_val`, and `push_func` are never used
[INFO] [stdout]   --> src/koopa_ir/koopa_ir.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Program {
[INFO] [stdout]    | ------------ associated items in this implementation
[INFO] [stdout] 15 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 22 |     pub fn push_global_val(&mut self, global_val: KoopaGlobalVal) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |     pub fn push_func(&mut self, func: Rc<RefCell<Func>>) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DataFlowGraph` is never constructed
[INFO] [stdout]   --> src/koopa_ir/koopa_ir.rs:41:12
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub struct DataFlowGraph {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `insert_inst`, `get_inst`, and `get_next_inst_id` are never used
[INFO] [stdout]   --> src/koopa_ir/koopa_ir.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 46 | impl DataFlowGraph {
[INFO] [stdout]    | ------------------ associated items in this implementation
[INFO] [stdout] 47 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 54 |     pub fn insert_inst(&mut self, inst: InstData) -> InstId {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 61 |     pub fn get_inst(&self, inst_id: &InstId) -> Option<&InstData> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 65 |     fn get_next_inst_id(&self) -> InstId {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `KoopaGlobalVal` is never constructed
[INFO] [stdout]   --> src/koopa_ir/koopa_ir.rs:71:12
[INFO] [stdout]    |
[INFO] [stdout] 71 | pub struct KoopaGlobalVal {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/koopa_ir/koopa_ir.rs:78:12
[INFO] [stdout]    |
[INFO] [stdout] 77 | impl KoopaGlobalVal {
[INFO] [stdout]    | ------------------- associated function in this implementation
[INFO] [stdout] 78 |     pub fn new(name: String, val_type: ValueType, val: i32) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Func` is never constructed
[INFO] [stdout]   --> src/koopa_ir/koopa_ir.rs:88:12
[INFO] [stdout]    |
[INFO] [stdout] 88 | pub struct Func {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `push_basic_block`, and `get_params_str` are never used
[INFO] [stdout]    --> src/koopa_ir/koopa_ir.rs:113:12
[INFO] [stdout]     |
[INFO] [stdout] 112 | impl Func {
[INFO] [stdout]     | --------- associated items in this implementation
[INFO] [stdout] 113 |     pub fn new(name: String, func_type: ValueType, params: Vec<Param>) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 123 |     pub fn push_basic_block(&mut self, block: BasicBlock) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 127 |     pub fn get_params_str(&self) -> String {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Param` is never constructed
[INFO] [stdout]    --> src/koopa_ir/koopa_ir.rs:137:12
[INFO] [stdout]     |
[INFO] [stdout] 137 | pub struct Param {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BasicBlock` is never constructed
[INFO] [stdout]    --> src/koopa_ir/koopa_ir.rs:143:12
[INFO] [stdout]     |
[INFO] [stdout] 143 | pub struct BasicBlock {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Asm` is never constructed
[INFO] [stdout]  --> src/asm/asm.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Asm {
[INFO] [stdout]   |            ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `new` and `from` are never used
[INFO] [stdout]   --> src/asm/asm.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 38 | impl Asm {
[INFO] [stdout]    | -------- associated functions in this implementation
[INFO] [stdout] 39 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 46 |     pub fn from(program: &Program) -> Result<Self, Box<dyn std::error::Error>> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AsmGlobalVal` is never constructed
[INFO] [stdout]   --> src/asm/asm.rs:64:12
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub struct AsmGlobalVal {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/asm/asm.rs:78:12
[INFO] [stdout]    |
[INFO] [stdout] 77 | impl AsmGlobalVal {
[INFO] [stdout]    | ----------------- associated function in this implementation
[INFO] [stdout] 78 |     pub fn new(name: String, val: i32) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AsmBlock` is never constructed
[INFO] [stdout]   --> src/asm/asm.rs:83:12
[INFO] [stdout]    |
[INFO] [stdout] 83 | pub struct AsmBlock {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `new` and `from` are never used
[INFO] [stdout]    --> src/asm/asm.rs:99:12
[INFO] [stdout]     |
[INFO] [stdout]  98 | impl AsmBlock {
[INFO] [stdout]     | ------------- associated functions in this implementation
[INFO] [stdout]  99 |     pub fn new(label: String) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 106 |     pub fn from(func: Ref<'_, Func>) -> Self {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AsmInst` is never constructed
[INFO] [stdout]    --> src/asm/asm.rs:124:12
[INFO] [stdout]     |
[INFO] [stdout] 124 | pub struct AsmInst {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from` is never used
[INFO] [stdout]    --> src/asm/asm.rs:153:12
[INFO] [stdout]     |
[INFO] [stdout] 152 | impl AsmInst {
[INFO] [stdout]     | ------------ associated function in this implementation
[INFO] [stdout] 153 |     pub fn from(inst_data: &InstData) -> Vec<Self> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `RVOpCode` is never used
[INFO] [stdout]  --> src/asm/config.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub enum RVOpCode {
[INFO] [stdout]   |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `RVReg` is never used
[INFO] [stdout]   --> src/asm/config.rs:15:10
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub enum RVReg {
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CompUnit` is never constructed
[INFO] [stdout]  --> src/ast/ast.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct CompUnit {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FuncDef` is never constructed
[INFO] [stdout]   --> src/ast/ast.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct FuncDef {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Block` is never constructed
[INFO] [stdout]   --> src/ast/ast.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct Block {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Stmt` is never constructed
[INFO] [stdout]   --> src/ast/ast.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct Stmt {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Program` is never constructed
[INFO] [stdout]  --> src/koopa_ir/koopa_ir.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct Program {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `push_global_val`, and `push_func` are never used
[INFO] [stdout]   --> src/koopa_ir/koopa_ir.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Program {
[INFO] [stdout]    | ------------ associated items in this implementation
[INFO] [stdout] 15 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 22 |     pub fn push_global_val(&mut self, global_val: KoopaGlobalVal) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |     pub fn push_func(&mut self, func: Rc<RefCell<Func>>) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DataFlowGraph` is never constructed
[INFO] [stdout]   --> src/koopa_ir/koopa_ir.rs:41:12
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub struct DataFlowGraph {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `insert_inst`, `get_inst`, and `get_next_inst_id` are never used
[INFO] [stdout]   --> src/koopa_ir/koopa_ir.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 46 | impl DataFlowGraph {
[INFO] [stdout]    | ------------------ associated items in this implementation
[INFO] [stdout] 47 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 54 |     pub fn insert_inst(&mut self, inst: InstData) -> InstId {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 61 |     pub fn get_inst(&self, inst_id: &InstId) -> Option<&InstData> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 65 |     fn get_next_inst_id(&self) -> InstId {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `KoopaGlobalVal` is never constructed
[INFO] [stdout]   --> src/koopa_ir/koopa_ir.rs:71:12
[INFO] [stdout]    |
[INFO] [stdout] 71 | pub struct KoopaGlobalVal {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/koopa_ir/koopa_ir.rs:78:12
[INFO] [stdout]    |
[INFO] [stdout] 77 | impl KoopaGlobalVal {
[INFO] [stdout]    | ------------------- associated function in this implementation
[INFO] [stdout] 78 |     pub fn new(name: String, val_type: ValueType, val: i32) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Func` is never constructed
[INFO] [stdout]   --> src/koopa_ir/koopa_ir.rs:88:12
[INFO] [stdout]    |
[INFO] [stdout] 88 | pub struct Func {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `push_basic_block`, and `get_params_str` are never used
[INFO] [stdout]    --> src/koopa_ir/koopa_ir.rs:113:12
[INFO] [stdout]     |
[INFO] [stdout] 112 | impl Func {
[INFO] [stdout]     | --------- associated items in this implementation
[INFO] [stdout] 113 |     pub fn new(name: String, func_type: ValueType, params: Vec<Param>) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 123 |     pub fn push_basic_block(&mut self, block: BasicBlock) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 127 |     pub fn get_params_str(&self) -> String {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Param` is never constructed
[INFO] [stdout]    --> src/koopa_ir/koopa_ir.rs:137:12
[INFO] [stdout]     |
[INFO] [stdout] 137 | pub struct Param {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BasicBlock` is never constructed
[INFO] [stdout]    --> src/koopa_ir/koopa_ir.rs:143:12
[INFO] [stdout]     |
[INFO] [stdout] 143 | pub struct BasicBlock {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `push_stmt`, and `get_inst` are never used
[INFO] [stdout]    --> src/koopa_ir/koopa_ir.rs:149:12
[INFO] [stdout]     |
[INFO] [stdout] 148 | impl BasicBlock {
[INFO] [stdout]     | --------------- associated items in this implementation
[INFO] [stdout] 149 |     pub fn new(func: &Rc<RefCell<Func>>) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 156 |     pub fn push_stmt(&mut self, stmt: Stmt) {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 169 |     pub fn get_inst(&self, inst_id: &InstId) -> Option<InstData> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `InstId` is never used
[INFO] [stdout]    --> src/koopa_ir/koopa_ir.rs:189:10
[INFO] [stdout]     |
[INFO] [stdout] 189 | pub type InstId = u32;
[INFO] [stdout]     |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Operand` is never used
[INFO] [stdout]    --> src/koopa_ir/koopa_ir.rs:192:10
[INFO] [stdout]     |
[INFO] [stdout] 192 | pub enum Operand {
[INFO] [stdout]     |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `to_string` is never used
[INFO] [stdout]    --> src/koopa_ir/koopa_ir.rs:198:12
[INFO] [stdout]     |
[INFO] [stdout] 197 | impl Operand {
[INFO] [stdout]     | ------------ method in this implementation
[INFO] [stdout] 198 |     pub fn to_string(&self) -> String {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `InstData` is never constructed
[INFO] [stdout]    --> src/koopa_ir/koopa_ir.rs:207:12
[INFO] [stdout]     |
[INFO] [stdout] 207 | pub struct InstData {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/koopa_ir/koopa_ir.rs:214:12
[INFO] [stdout]     |
[INFO] [stdout] 213 | impl InstData {
[INFO] [stdout]     | ------------- associated function in this implementation
[INFO] [stdout] 214 |     pub fn new(opcode: String, operands: Vec<Operand>) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `ast2koopa_ir` is never used
[INFO] [stdout]    --> src/koopa_ir/koopa_ir.rs:238:8
[INFO] [stdout]     |
[INFO] [stdout] 238 | pub fn ast2koopa_ir(ast: &CompUnit) -> Result<Program, Box<dyn std::error::Error>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `KoopaOpCode` is never used
[INFO] [stdout]   --> src/koopa_ir/config.rs:15:10
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub enum KoopaOpCode {
[INFO] [stdout]    |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `get_opcode` is never used
[INFO] [stdout]   --> src/koopa_ir/config.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl KoopaOpCode {
[INFO] [stdout]    | ---------------- associated function in this implementation
[INFO] [stdout] 28 |     pub fn get_opcode(s: &str) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ValueType` is never used
[INFO] [stdout]  --> src/config/config.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub enum ValueType {
[INFO] [stdout]   |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `from_str` and `as_str` are never used
[INFO] [stdout]   --> src/config/config.rs:9:12
[INFO] [stdout]    |
[INFO] [stdout]  8 | impl ValueType {
[INFO] [stdout]    | -------------- associated items in this implementation
[INFO] [stdout]  9 |     pub fn from_str(s: &str) -> Self {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |     pub fn as_str(&self) -> &'static str {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `redirect_stderr` is never used
[INFO] [stdout]  --> src/util/util.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn redirect_stderr(path: &str) -> std::io::Result<()> {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_abs_path` is never used
[INFO] [stdout]   --> src/util/util.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub fn get_abs_path(rel: &str) -> PathBuf {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `push_stmt`, and `get_inst` are never used
[INFO] [stdout]    --> src/koopa_ir/koopa_ir.rs:149:12
[INFO] [stdout]     |
[INFO] [stdout] 148 | impl BasicBlock {
[INFO] [stdout]     | --------------- associated items in this implementation
[INFO] [stdout] 149 |     pub fn new(func: &Rc<RefCell<Func>>) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 156 |     pub fn push_stmt(&mut self, stmt: Stmt) {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 169 |     pub fn get_inst(&self, inst_id: &InstId) -> Option<InstData> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `InstId` is never used
[INFO] [stdout]    --> src/koopa_ir/koopa_ir.rs:189:10
[INFO] [stdout]     |
[INFO] [stdout] 189 | pub type InstId = u32;
[INFO] [stdout]     |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Operand` is never used
[INFO] [stdout]    --> src/koopa_ir/koopa_ir.rs:192:10
[INFO] [stdout]     |
[INFO] [stdout] 192 | pub enum Operand {
[INFO] [stdout]     |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `to_string` is never used
[INFO] [stdout]    --> src/koopa_ir/koopa_ir.rs:198:12
[INFO] [stdout]     |
[INFO] [stdout] 197 | impl Operand {
[INFO] [stdout]     | ------------ method in this implementation
[INFO] [stdout] 198 |     pub fn to_string(&self) -> String {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `InstData` is never constructed
[INFO] [stdout]    --> src/koopa_ir/koopa_ir.rs:207:12
[INFO] [stdout]     |
[INFO] [stdout] 207 | pub struct InstData {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/koopa_ir/koopa_ir.rs:214:12
[INFO] [stdout]     |
[INFO] [stdout] 213 | impl InstData {
[INFO] [stdout]     | ------------- associated function in this implementation
[INFO] [stdout] 214 |     pub fn new(opcode: String, operands: Vec<Operand>) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `ast2koopa_ir` is never used
[INFO] [stdout]    --> src/koopa_ir/koopa_ir.rs:238:8
[INFO] [stdout]     |
[INFO] [stdout] 238 | pub fn ast2koopa_ir(ast: &CompUnit) -> Result<Program, Box<dyn std::error::Error>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `KoopaOpCode` is never used
[INFO] [stdout]   --> src/koopa_ir/config.rs:15:10
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub enum KoopaOpCode {
[INFO] [stdout]    |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `get_opcode` is never used
[INFO] [stdout]   --> src/koopa_ir/config.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl KoopaOpCode {
[INFO] [stdout]    | ---------------- associated function in this implementation
[INFO] [stdout] 28 |     pub fn get_opcode(s: &str) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ValueType` is never used
[INFO] [stdout]  --> src/config/config.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub enum ValueType {
[INFO] [stdout]   |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `from_str` and `as_str` are never used
[INFO] [stdout]   --> src/config/config.rs:9:12
[INFO] [stdout]    |
[INFO] [stdout]  8 | impl ValueType {
[INFO] [stdout]    | -------------- associated items in this implementation
[INFO] [stdout]  9 |     pub fn from_str(s: &str) -> Self {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |     pub fn as_str(&self) -> &'static str {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `redirect_stderr` is never used
[INFO] [stdout]  --> src/util/util.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn redirect_stderr(path: &str) -> std::io::Result<()> {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_abs_path` is never used
[INFO] [stdout]   --> src/util/util.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub fn get_abs_path(rel: &str) -> PathBuf {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `util::*`
[INFO] [stdout]  --> src/util/mod.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub use util::*;
[INFO] [stdout]   |         ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `util::*`
[INFO] [stdout]  --> src/util/mod.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub use util::*;
[INFO] [stdout]   |         ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/asm/config.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub enum RVReg {
[INFO] [stdout]    |          ----- variants in this enum
[INFO] [stdout] 16 |     ZERO,   // hardwired zero
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 17 |     RA,     // return address
[INFO] [stdout]    |     ^^
[INFO] [stdout] 18 |     SP,     // stack pointer
[INFO] [stdout]    |     ^^
[INFO] [stdout] 19 |     GP,     // global pointer
[INFO] [stdout]    |     ^^
[INFO] [stdout] 20 |     TP,     // thread pointer
[INFO] [stdout]    |     ^^
[INFO] [stdout] 21 |     T0, T1, T2,     // temporaries
[INFO] [stdout]    |     ^^  ^^  ^^
[INFO] [stdout] 22 |     S0, S1,         // saved registers / frame pointer
[INFO] [stdout]    |     ^^  ^^
[INFO] [stdout] 23 |     A0, A1, A2, A3, A4, A5, A6, A7, // function arguments / return values
[INFO] [stdout]    |         ^^  ^^  ^^  ^^  ^^  ^^  ^^
[INFO] [stdout] 24 |     S2, S3, S4, S5, S6, S7, S8, S9, S10, S11,   // saved registers
[INFO] [stdout]    |     ^^  ^^  ^^  ^^  ^^  ^^  ^^  ^^  ^^^  ^^^
[INFO] [stdout] 25 |     T3, T4, T5, T6, // temporaries
[INFO] [stdout]    |     ^^  ^^  ^^  ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `as_str` is never used
[INFO] [stdout]   --> src/config/config.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout]  8 | impl ValueType {
[INFO] [stdout]    | -------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 17 |     pub fn as_str(&self) -> &'static str {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `push_global_val` is never used
[INFO] [stdout]   --> src/koopa_ir/koopa_ir.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Program {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 22 |     pub fn push_global_val(&mut self, global_val: KoopaGlobalVal) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_next_inst_id` is never used
[INFO] [stdout]   --> src/koopa_ir/koopa_ir.rs:65:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | impl DataFlowGraph {
[INFO] [stdout]    | ------------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 65 |     fn get_next_inst_id(&self) -> InstId {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `val_type` is never read
[INFO] [stdout]   --> src/koopa_ir/koopa_ir.rs:73:9
[INFO] [stdout]    |
[INFO] [stdout] 71 | pub struct KoopaGlobalVal {
[INFO] [stdout]    |            -------------- field in this struct
[INFO] [stdout] 72 |     pub name: String,
[INFO] [stdout] 73 |     pub val_type: ValueType,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `KoopaGlobalVal` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/koopa_ir/koopa_ir.rs:78:12
[INFO] [stdout]    |
[INFO] [stdout] 77 | impl KoopaGlobalVal {
[INFO] [stdout]    | ------------------- associated function in this implementation
[INFO] [stdout] 78 |     pub fn new(name: String, val_type: ValueType, val: i32) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `InstId` is never constructed
[INFO] [stdout]    --> src/koopa_ir/koopa_ir.rs:193:5
[INFO] [stdout]     |
[INFO] [stdout] 192 | pub enum Operand {
[INFO] [stdout]     |          ------- variant in this enum
[INFO] [stdout] 193 |     InstId(InstId), // maybe the operand refers to another instruction's result
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Operand` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `users` is never read
[INFO] [stdout]    --> src/koopa_ir/koopa_ir.rs:210:9
[INFO] [stdout]     |
[INFO] [stdout] 207 | pub struct InstData {
[INFO] [stdout]     |            -------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 210 |     pub users: Vec<InstId>, // instructions that use this instruction's result
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `InstData` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `redirect_stderr` is never used
[INFO] [stdout]  --> src/util/util.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn redirect_stderr(path: &str) -> std::io::Result<()> {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_abs_path` is never used
[INFO] [stdout]   --> src/util/util.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub fn get_abs_path(rel: &str) -> PathBuf {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/asm/config.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub enum RVReg {
[INFO] [stdout]    |          ----- variants in this enum
[INFO] [stdout] 16 |     ZERO,   // hardwired zero
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 17 |     RA,     // return address
[INFO] [stdout]    |     ^^
[INFO] [stdout] 18 |     SP,     // stack pointer
[INFO] [stdout]    |     ^^
[INFO] [stdout] 19 |     GP,     // global pointer
[INFO] [stdout]    |     ^^
[INFO] [stdout] 20 |     TP,     // thread pointer
[INFO] [stdout]    |     ^^
[INFO] [stdout] 21 |     T0, T1, T2,     // temporaries
[INFO] [stdout]    |     ^^  ^^  ^^
[INFO] [stdout] 22 |     S0, S1,         // saved registers / frame pointer
[INFO] [stdout]    |     ^^  ^^
[INFO] [stdout] 23 |     A0, A1, A2, A3, A4, A5, A6, A7, // function arguments / return values
[INFO] [stdout]    |         ^^  ^^  ^^  ^^  ^^  ^^  ^^
[INFO] [stdout] 24 |     S2, S3, S4, S5, S6, S7, S8, S9, S10, S11,   // saved registers
[INFO] [stdout]    |     ^^  ^^  ^^  ^^  ^^  ^^  ^^  ^^  ^^^  ^^^
[INFO] [stdout] 25 |     T3, T4, T5, T6, // temporaries
[INFO] [stdout]    |     ^^  ^^  ^^  ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `as_str` is never used
[INFO] [stdout]   --> src/config/config.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout]  8 | impl ValueType {
[INFO] [stdout]    | -------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 17 |     pub fn as_str(&self) -> &'static str {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `push_global_val` is never used
[INFO] [stdout]   --> src/koopa_ir/koopa_ir.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Program {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 22 |     pub fn push_global_val(&mut self, global_val: KoopaGlobalVal) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_next_inst_id` is never used
[INFO] [stdout]   --> src/koopa_ir/koopa_ir.rs:65:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | impl DataFlowGraph {
[INFO] [stdout]    | ------------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 65 |     fn get_next_inst_id(&self) -> InstId {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `val_type` is never read
[INFO] [stdout]   --> src/koopa_ir/koopa_ir.rs:73:9
[INFO] [stdout]    |
[INFO] [stdout] 71 | pub struct KoopaGlobalVal {
[INFO] [stdout]    |            -------------- field in this struct
[INFO] [stdout] 72 |     pub name: String,
[INFO] [stdout] 73 |     pub val_type: ValueType,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `KoopaGlobalVal` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/koopa_ir/koopa_ir.rs:78:12
[INFO] [stdout]    |
[INFO] [stdout] 77 | impl KoopaGlobalVal {
[INFO] [stdout]    | ------------------- associated function in this implementation
[INFO] [stdout] 78 |     pub fn new(name: String, val_type: ValueType, val: i32) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `InstId` is never constructed
[INFO] [stdout]    --> src/koopa_ir/koopa_ir.rs:193:5
[INFO] [stdout]     |
[INFO] [stdout] 192 | pub enum Operand {
[INFO] [stdout]     |          ------- variant in this enum
[INFO] [stdout] 193 |     InstId(InstId), // maybe the operand refers to another instruction's result
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Operand` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `users` is never read
[INFO] [stdout]    --> src/koopa_ir/koopa_ir.rs:210:9
[INFO] [stdout]     |
[INFO] [stdout] 207 | pub struct InstData {
[INFO] [stdout]     |            -------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 210 |     pub users: Vec<InstId>, // instructions that use this instruction's result
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `InstData` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `redirect_stderr` is never used
[INFO] [stdout]  --> src/util/util.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn redirect_stderr(path: &str) -> std::io::Result<()> {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_abs_path` is never used
[INFO] [stdout]   --> src/util/util.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub fn get_abs_path(rel: &str) -> PathBuf {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.29s
[INFO] running `Command { std: "docker" "inspect" "c1a15d50a497eb12f611904bf132701dbade4081126185d3a019b42a7d3b8d95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1a15d50a497eb12f611904bf132701dbade4081126185d3a019b42a7d3b8d95", kill_on_drop: false }`
[INFO] [stdout] c1a15d50a497eb12f611904bf132701dbade4081126185d3a019b42a7d3b8d95