[INFO] cloning repository https://github.com/iximeow/zvm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/iximeow/zvm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiximeow%2Fzvm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiximeow%2Fzvm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 32cc907dee464326780d4730b9242784e93f3e3f
[INFO] testing iximeow/zvm against master#159ba8a92c9e2fa4121f106176309521f4af87e9+rustflags=-Copt-level=3 for pr-107051
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiximeow%2Fzvm" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/iximeow/zvm on toolchain 159ba8a92c9e2fa4121f106176309521f4af87e9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+159ba8a92c9e2fa4121f106176309521f4af87e9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/iximeow/zvm
[INFO] finished tweaking git repo https://github.com/iximeow/zvm
[INFO] tweaked toml for git repo https://github.com/iximeow/zvm written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/iximeow/zvm 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" "+159ba8a92c9e2fa4121f106176309521f4af87e9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded regalloc2 v0.3.1
[INFO] [stderr]   Downloaded yaxpeax-arch v0.2.7
[INFO] [stderr]   Downloaded yaxpeax-x86 v1.1.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:7c93e6f9a94679f34221d1005849d4c83862f85b14a264fa0883942f4d043a66" "/opt/rustwide/cargo-home/bin/cargo" "+159ba8a92c9e2fa4121f106176309521f4af87e9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 89703507c6c1f8dcda7416d12e51346b15312ef076fff36c8a54b21a46fe8f8e
[INFO] running `Command { std: "docker" "start" "-a" "89703507c6c1f8dcda7416d12e51346b15312ef076fff36c8a54b21a46fe8f8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "89703507c6c1f8dcda7416d12e51346b15312ef076fff36c8a54b21a46fe8f8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89703507c6c1f8dcda7416d12e51346b15312ef076fff36c8a54b21a46fe8f8e", kill_on_drop: false }`
[INFO] [stdout] 89703507c6c1f8dcda7416d12e51346b15312ef076fff36c8a54b21a46fe8f8e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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 -Copt-level=3" "-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@sha256:7c93e6f9a94679f34221d1005849d4c83862f85b14a264fa0883942f4d043a66" "/opt/rustwide/cargo-home/bin/cargo" "+159ba8a92c9e2fa4121f106176309521f4af87e9" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eea8a9312899724c6484ffbfe6cffa3632258c0ede8a9aa0de2c143b04c9e53d
[INFO] running `Command { std: "docker" "start" "-a" "eea8a9312899724c6484ffbfe6cffa3632258c0ede8a9aa0de2c143b04c9e53d", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling smallvec v1.9.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.42
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling cranelift-isle v0.86.1
[INFO] [stderr]    Compiling unicode-ident v1.0.2
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.86.1
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.140
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling instant v0.1.12
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.86.1
[INFO] [stderr]    Compiling target-lexicon v0.12.4
[INFO] [stderr]    Compiling serde v1.0.140
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling slice-group-by v0.3.0
[INFO] [stderr]    Compiling cranelift-entity v0.86.1
[INFO] [stderr]    Compiling yaxpeax-x86 v1.1.4
[INFO] [stderr]    Compiling cranelift-bforest v0.86.1
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling mio v0.7.14
[INFO] [stderr]    Compiling regalloc2 v0.3.1
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling signal-hook v0.1.17
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling crossterm v0.19.0
[INFO] [stderr]    Compiling gimli v0.26.2
[INFO] [stderr]    Compiling cranelift-codegen v0.86.1
[INFO] [stderr]    Compiling yaxpeax-arch v0.2.7
[INFO] [stderr]    Compiling cranelift-frontend v0.86.1
[INFO] [stderr]    Compiling zvm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `init_class`
[INFO] [stdout]    --> src/virtual_machine.rs:332:13
[INFO] [stdout]     |
[INFO] [stdout] 332 |         let init_class = Rc::clone(&current_class);
[INFO] [stdout]     |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_init_class`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vm`
[INFO] [stdout]     --> src/virtual_machine.rs:3581:39
[INFO] [stdout]      |
[INFO] [stdout] 3581 | fn object_equals(state: &mut VMState, vm: &mut VirtualMachine) -> Result<(), VMError> {
[INFO] [stdout]      |                                       ^^ help: if this is intentional, prefix it with an underscore: `_vm`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/compiler/mod.rs:249:20
[INFO] [stdout]     |
[INFO] [stdout] 249 |     fn into_method(mut self) -> ZvmMethod {
[INFO] [stdout]     |                    ----^^^^
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `attributes` is never read
[INFO] [stdout]   --> src/class_file/unvalidated/field.rs:46:16
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub struct FieldInfo {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 46 |     pub(crate) attributes: Vec<AttributeInfo>,
[INFO] [stdout]    |                ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FieldInfo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `max_stack` is never read
[INFO] [stdout]   --> src/class_file/validated/method.rs:25:16
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub struct MethodBody {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 25 |     pub(crate) max_stack: u16,
[INFO] [stdout]    |                ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MethodBody` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `arguments`, `locals`, `blocks`, and `returns` are never read
[INFO] [stdout]    --> src/compiler/mod.rs:111:5
[INFO] [stdout]     |
[INFO] [stdout] 110 | pub struct ZvmMethod {
[INFO] [stdout]     |            --------- fields in this struct
[INFO] [stdout] 111 |     arguments: Vec<ir::Argument>,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 112 |     locals: Vec<ir::Local>,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 113 |     blocks: Vec<ir::Block>,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 114 |     returns: Option<ir::ValueRef>,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ZvmMethod` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TranslatorState` is never constructed
[INFO] [stdout]    --> src/compiler/mod.rs:224:8
[INFO] [stdout]     |
[INFO] [stdout] 224 | struct TranslatorState {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bytecode2ir` is never used
[INFO] [stdout]    --> src/compiler/mod.rs:294:8
[INFO] [stdout]     |
[INFO] [stdout] 294 | pub fn bytecode2ir(method: &MethodBody) -> ZvmMethod {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `compile` is never used
[INFO] [stdout]    --> src/compiler/mod.rs:120:12
[INFO] [stdout]     |
[INFO] [stdout] 120 |     pub fn compile(&self) -> Box<[u8]> {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `inst` is never used
[INFO] [stdout]    --> src/compiler/mod.rs:234:8
[INFO] [stdout]     |
[INFO] [stdout] 234 |     fn inst(&mut self, inst: ir::Instruction) {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/compiler/mod.rs:238:8
[INFO] [stdout]     |
[INFO] [stdout] 238 |     fn new() -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `into_method` is never used
[INFO] [stdout]    --> src/compiler/mod.rs:249:8
[INFO] [stdout]     |
[INFO] [stdout] 249 |     fn into_method(mut self) -> ZvmMethod {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new_argument` is never used
[INFO] [stdout]    --> src/compiler/mod.rs:262:8
[INFO] [stdout]     |
[INFO] [stdout] 262 |     fn new_argument(&mut self, ty: ir::ValueType) -> ir::ValueRef {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new_local` is never used
[INFO] [stdout]    --> src/compiler/mod.rs:267:8
[INFO] [stdout]     |
[INFO] [stdout] 267 |     fn new_local(&mut self, ty: ir::ValueType) -> ir::ValueRef {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `pop_typed` is never used
[INFO] [stdout]    --> src/compiler/mod.rs:272:8
[INFO] [stdout]     |
[INFO] [stdout] 272 |     fn pop_typed(&mut self, ty: ir::ValueType) -> ir::ValueRef {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `pop_any` is never used
[INFO] [stdout]    --> src/compiler/mod.rs:283:8
[INFO] [stdout]     |
[INFO] [stdout] 283 |     fn pop_any(&mut self) -> ir::ValueRef {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `push` is never used
[INFO] [stdout]    --> src/compiler/mod.rs:287:8
[INFO] [stdout]     |
[INFO] [stdout] 287 |     fn push(&mut self, v: ir::ValueRef) {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Argument`, `Local`, and `Const` are never constructed
[INFO] [stdout]  --> src/compiler/mod.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     pub enum Value {
[INFO] [stdout]   |              ----- variants in this enum
[INFO] [stdout] 6 |         Argument(Argument),
[INFO] [stdout]   |         ^^^^^^^^
[INFO] [stdout] 7 |         Local(Local),
[INFO] [stdout]   |         ^^^^^
[INFO] [stdout] 8 |         Const(Const),
[INFO] [stdout]   |         ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Value` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/compiler/mod.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub enum Const {
[INFO] [stdout]    |              ----- variants in this enum
[INFO] [stdout] 23 |         Byte(i8),
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 24 |         Short(i16),
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 25 |         Int(i32),
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 26 |         Long(i64),
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 27 |         Float(f32),
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 28 |         Double(f64),
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 29 |         Null,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Const` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/compiler/mod.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub enum ValueType {
[INFO] [stdout]    |              --------- variants in this enum
[INFO] [stdout] 34 |         Byte,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 35 |         Short,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 36 |         Int,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 37 |         Long,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 38 |         Float,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 39 |         Double,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 40 |         Ref,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ValueType` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Argument`, `Local`, and `Const` are never constructed
[INFO] [stdout]   --> src/compiler/mod.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |     pub enum ValuePool {
[INFO] [stdout]    |              --------- variants in this enum
[INFO] [stdout] 45 |         Argument,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 46 |         Local,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 47 |         Const,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ValuePool` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `ConstInt`, `IntAdd`, `IReturn`, and `Return` are never constructed
[INFO] [stdout]   --> src/compiler/mod.rs:81:9
[INFO] [stdout]    |
[INFO] [stdout] 80 |     pub enum Instruction {
[INFO] [stdout]    |              ----------- variants in this enum
[INFO] [stdout] 81 |         ConstInt { result: ValueRef, value: i32 },
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 82 |         IntAdd { result: ValueRef, left: ValueRef, right: ValueRef },
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 83 |         IReturn { retval: ValueRef },
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 84 |         Return,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Instruction` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `instructions` is never read
[INFO] [stdout]   --> src/compiler/mod.rs:89:9
[INFO] [stdout]    |
[INFO] [stdout] 88 |     pub struct Block {
[INFO] [stdout]    |                ----- field in this struct
[INFO] [stdout] 89 |         instructions: Vec<Instruction>,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Block` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `argument` is never used
[INFO] [stdout]   --> src/compiler/mod.rs:57:16
[INFO] [stdout]    |
[INFO] [stdout] 57 |         pub fn argument(id: usize) -> Self {
[INFO] [stdout]    |                ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `local` is never used
[INFO] [stdout]   --> src/compiler/mod.rs:64:16
[INFO] [stdout]    |
[INFO] [stdout] 64 |         pub fn local(id: usize) -> Self {
[INFO] [stdout]    |                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `constant` is never used
[INFO] [stdout]   --> src/compiler/mod.rs:71:16
[INFO] [stdout]    |
[INFO] [stdout] 71 |         pub fn constant(id: usize) -> Self {
[INFO] [stdout]    |                ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/compiler/mod.rs:93:16
[INFO] [stdout]    |
[INFO] [stdout] 93 |         pub fn new() -> Self {
[INFO] [stdout]    |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `append` is never used
[INFO] [stdout]   --> src/compiler/mod.rs:99:16
[INFO] [stdout]    |
[INFO] [stdout] 99 |         pub fn append(&mut self, inst: Instruction) {
[INFO] [stdout]    |                ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `instructions` is never used
[INFO] [stdout]    --> src/compiler/mod.rs:103:16
[INFO] [stdout]     |
[INFO] [stdout] 103 |         pub fn instructions(&self) -> &[Instruction] {
[INFO] [stdout]     |                ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] The following warnings were emitted during compilation:
[INFO] [stderr] 
[INFO] [stderr] warning: Failed to run `rustfmt` on ISLE-generated code: Os { code: 32, kind: BrokenPipe, message: "Broken pipe" }
[INFO] [stderr] warning: Failed to run `rustfmt` on ISLE-generated code: Os { code: 32, kind: BrokenPipe, message: "Broken pipe" }
[INFO] [stderr] warning: Failed to run `rustfmt` on ISLE-generated code: Os { code: 32, kind: BrokenPipe, message: "Broken pipe" }
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `cranelift-codegen`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name cranelift_codegen --edition=2021 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/cranelift-codegen-0.86.1/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' --cfg 'feature="gimli"' --cfg 'feature="std"' --cfg 'feature="unwind"' -C metadata=d46e3d5b68b5c8cd -C extra-filename=-d46e3d5b68b5c8cd --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern cranelift_bforest=/opt/rustwide/target/debug/deps/libcranelift_bforest-52d7a5e55cbeca92.rmeta --extern cranelift_codegen_shared=/opt/rustwide/target/debug/deps/libcranelift_codegen_shared-02e131e81c598ec8.rmeta --extern cranelift_entity=/opt/rustwide/target/debug/deps/libcranelift_entity-3ce138889b3d8569.rmeta --extern gimli=/opt/rustwide/target/debug/deps/libgimli-5f7ccfc863477bc5.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-1f281fe8445d426c.rmeta --extern regalloc2=/opt/rustwide/target/debug/deps/libregalloc2-5ae75ce46a3a2743.rmeta --extern smallvec=/opt/rustwide/target/debug/deps/libsmallvec-1bab1a7cb55a60d2.rmeta --extern target_lexicon=/opt/rustwide/target/debug/deps/libtarget_lexicon-c6420c178ce618f2.rmeta --cap-lints allow --cap-lints=forbid -Copt-level=3 --cfg 'feature="x86"'` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: 29 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "eea8a9312899724c6484ffbfe6cffa3632258c0ede8a9aa0de2c143b04c9e53d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eea8a9312899724c6484ffbfe6cffa3632258c0ede8a9aa0de2c143b04c9e53d", kill_on_drop: false }`
[INFO] [stdout] eea8a9312899724c6484ffbfe6cffa3632258c0ede8a9aa0de2c143b04c9e53d