[INFO] cloning repository https://github.com/ConnorVoisey/lang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ConnorVoisey/lang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FConnorVoisey%2Flang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FConnorVoisey%2Flang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2038281fe3aecc58af2fe38f4e0b9a38a9020896
[INFO] checking ConnorVoisey/lang against try#0611f7de057c584b8771102fde7aed6c70c71d3b for pr-146440
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FConnorVoisey%2Flang" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ConnorVoisey/lang
[INFO] finished tweaking git repo https://github.com/ConnorVoisey/lang
[INFO] tweaked toml for git repo https://github.com/ConnorVoisey/lang written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ConnorVoisey/lang on toolchain 0611f7de057c584b8771102fde7aed6c70c71d3b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ConnorVoisey/lang 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" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4d206ab66724c8591e7c81468ef424966e5d19ee0668cc7a4be9661930004dab
[INFO] running `Command { std: "docker" "start" "-a" "4d206ab66724c8591e7c81468ef424966e5d19ee0668cc7a4be9661930004dab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d206ab66724c8591e7c81468ef424966e5d19ee0668cc7a4be9661930004dab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d206ab66724c8591e7c81468ef424966e5d19ee0668cc7a4be9661930004dab", kill_on_drop: false }`
[INFO] [stdout] 4d206ab66724c8591e7c81468ef424966e5d19ee0668cc7a4be9661930004dab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ec4d9a0aa919250609b59cc0e39039b4774a754be2fa4d6f6cfd902674b0705d
[INFO] running `Command { std: "docker" "start" "-a" "ec4d9a0aa919250609b59cc0e39039b4774a754be2fa4d6f6cfd902674b0705d", kill_on_drop: false }`
[INFO] [stderr]     Checking smallvec v1.15.1
[INFO] [stderr]     Checking log v0.4.28
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]     Checking cfg-if v1.0.3
[INFO] [stderr]    Compiling cranelift-srcgen v0.123.2
[INFO] [stderr]     Checking memchr v2.7.5
[INFO] [stderr]     Checking once_cell v1.21.3
[INFO] [stderr]     Checking foldhash v0.1.5
[INFO] [stderr]    Compiling cranelift-isle v0.123.2
[INFO] [stderr]    Compiling libm v0.2.15
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.123.2
[INFO] [stderr]    Compiling target-lexicon v0.13.3
[INFO] [stderr]     Checking cranelift-bitset v0.123.2
[INFO] [stderr]     Checking pin-project-lite v0.2.16
[INFO] [stderr]     Checking bumpalo v3.19.0
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]     Checking arbitrary v1.4.2
[INFO] [stderr]     Checking rustc-hash v2.1.1
[INFO] [stderr]     Checking thread_local v1.1.9
[INFO] [stderr]     Checking hashbrown v0.15.5
[INFO] [stderr]     Checking cranelift-entity v0.123.2
[INFO] [stderr]     Checking tracing-core v0.1.34
[INFO] [stderr]    Compiling cranelift-assembler-x64-meta v0.123.2
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]     Checking nu-ansi-term v0.50.1
[INFO] [stderr]    Compiling lock_api v0.4.13
[INFO] [stderr]    Compiling anyhow v1.0.99
[INFO] [stderr]    Compiling object v0.36.7
[INFO] [stderr]     Checking cranelift-bforest v0.123.2
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[INFO] [stderr]    Compiling serde_core v1.0.223
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]    Compiling crc32fast v1.5.0
[INFO] [stderr]    Compiling owo-colors v4.2.2
[INFO] [stderr]     Checking tracing-subscriber v0.3.20
[INFO] [stderr]     Checking anstyle-parse v0.2.7
[INFO] [stderr]     Checking indexmap v2.11.1
[INFO] [stderr]     Checking regalloc2 v0.12.2
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking adler2 v2.0.1
[INFO] [stderr]     Checking futures-core v0.3.31
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]     Checking cranelift-control v0.123.2
[INFO] [stderr]     Checking gimli v0.31.1
[INFO] [stderr]     Checking anstyle-query v1.1.4
[INFO] [stderr]    Compiling rayon-core v1.13.0
[INFO] [stderr]    Compiling color-spantrace v0.3.0
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling eyre v0.6.12
[INFO] [stderr]     Checking futures-sink v0.3.31
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling object v0.37.3
[INFO] [stderr]     Checking colorchoice v1.0.4
[INFO] [stderr]     Checking anstyle v1.0.13
[INFO] [stderr]     Checking wasmtime-internal-math v36.0.2
[INFO] [stderr]     Checking is_terminal_polyfill v1.70.2
[INFO] [stderr]     Checking futures-channel v0.3.31
[INFO] [stderr]     Checking crossbeam-deque v0.8.6
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.123.2
[INFO] [stderr]     Checking anstream v0.6.21
[INFO] [stderr]     Checking miniz_oxide v0.8.9
[INFO] [stderr]     Checking gimli v0.32.3
[INFO] [stderr]     Checking clap_lex v0.7.6
[INFO] [stderr]    Compiling thiserror v2.0.12
[INFO] [stderr]     Checking futures-task v0.3.31
[INFO] [stderr]     Checking itoa v1.0.15
[INFO] [stderr]     Checking futures-io v0.3.31
[INFO] [stderr]     Checking indenter v0.3.4
[INFO] [stderr]     Checking ryu v1.0.20
[INFO] [stderr]     Checking rustc-demangle v0.1.26
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]     Checking slab v0.4.11
[INFO] [stderr]     Checking clap_builder v4.5.51
[INFO] [stderr]     Checking parking_lot v0.12.4
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking unicode-width v0.2.1
[INFO] [stderr]     Checking termcolor v1.4.1
[INFO] [stderr]     Checking either v1.15.0
[INFO] [stderr]     Checking tracing-tree v0.4.1
[INFO] [stderr]     Checking colored v3.0.0
[INFO] [stderr]     Checking rayon v1.11.0
[INFO] [stderr]     Checking codespan-reporting v0.12.0
[INFO] [stderr]     Checking sdd v3.0.10
[INFO] [stderr]     Checking scc v2.4.0
[INFO] [stderr]     Checking quickscope v0.2.0
[INFO] [stderr]     Checking yansi v1.0.1
[INFO] [stderr]    Compiling cranelift-assembler-x64 v0.123.2
[INFO] [stderr]     Checking addr2line v0.24.2
[INFO] [stderr]     Checking pretty_assertions v1.4.1
[INFO] [stderr]     Checking futures-executor v0.3.31
[INFO] [stderr]     Checking futures v0.3.31
[INFO] [stderr]    Compiling cranelift-codegen v0.123.2
[INFO] [stderr]     Checking backtrace v0.3.75
[INFO] [stderr]     Checking tracing-chrome v0.7.2
[INFO] [stderr]    Compiling tracing-attributes v0.1.30
[INFO] [stderr]    Compiling clap_derive v4.5.49
[INFO] [stderr]    Compiling thiserror-impl v2.0.12
[INFO] [stderr]    Compiling serial_test_derive v3.2.0
[INFO] [stderr]     Checking serial_test v3.2.0
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]     Checking tracing-error v0.2.1
[INFO] [stderr]     Checking color-eyre v0.6.5
[INFO] [stderr]     Checking clap v4.5.51
[INFO] [stderr]     Checking cranelift-module v0.123.2
[INFO] [stderr]     Checking cranelift-native v0.123.2
[INFO] [stderr]     Checking cranelift-frontend v0.123.2
[INFO] [stderr]     Checking cranelift-object v0.123.2
[INFO] [stderr]     Checking cranelift v0.123.2
[INFO] [stderr]     Checking lang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `StructLayout` and `self`
[INFO] [stdout]  --> src/rvsdg/builder.rs:6:21
[INFO] [stdout]   |
[INFO] [stdout] 6 |     struct_layout::{self, StructLayout},
[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: `StructId`
[INFO] [stdout]   --> src/rvsdg/to_cranelift.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 13 |     types::{StructId, TypeArena, TypeId, TypeKind},
[INFO] [stdout]    |             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `TokenKind`, `Token`, and `VarType`
[INFO] [stdout]   --> src/ast/ast_import.rs:71:20
[INFO] [stdout]    |
[INFO] [stdout] 71 |         ast::{Ast, VarType},
[INFO] [stdout]    |                    ^^^^^^^
[INFO] [stdout] 72 |         interner::{Interner, SharedInterner},
[INFO] [stdout] 73 |         lexer::{Lexer, Token, TokenKind},
[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: `pretty_assertions::assert_eq`
[INFO] [stdout]   --> src/ast/ast_import.rs:77:9
[INFO] [stdout]    |
[INFO] [stdout] 77 |     use pretty_assertions::assert_eq;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Token`
[INFO] [stdout]    --> src/ast/ast_struct.rs:179:24
[INFO] [stdout]     |
[INFO] [stdout] 179 |         lexer::{Lexer, Token, TokenKind},
[INFO] [stdout]     |                        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `StructLayout` and `self`
[INFO] [stdout]  --> src/rvsdg/builder.rs:6:21
[INFO] [stdout]   |
[INFO] [stdout] 6 |     struct_layout::{self, StructLayout},
[INFO] [stdout]   |                     ^^^^  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> src/rvsdg/optimize.rs:151:9
[INFO] [stdout]     |
[INFO] [stdout] 151 |     use super::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `StructId`
[INFO] [stdout]   --> src/rvsdg/to_cranelift.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 13 |     types::{StructId, TypeArena, TypeId, TypeKind},
[INFO] [stdout]    |             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cached_node`
[INFO] [stdout]    --> src/rvsdg/builder.rs:157:22
[INFO] [stdout]     |
[INFO] [stdout] 157 |         if let Some(&cached_node) = self.value_cache.get(&key) {
[INFO] [stdout]     |                      ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cached_node`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ty`
[INFO] [stdout]    --> src/rvsdg/builder.rs:435:13
[INFO] [stdout]     |
[INFO] [stdout] 435 |         let ty = value.node; // Placeholder - we'd need to track types properly
[INFO] [stdout]     |             ^^ help: if this is intentional, prefix it with an underscore: `_ty`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/rvsdg/graphviz.rs:113:13
[INFO] [stdout]     |
[INFO] [stdout] 113 |             _ => ("white", "rounded"),
[INFO] [stdout]     |             ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> src/rvsdg/graphviz.rs:113:13
[INFO] [stdout]     |
[INFO] [stdout] 100 |             NodeKind::Lambda { .. } | NodeKind::Gamma { .. } | NodeKind::Theta { .. } => {
[INFO] [stdout]     |             ------------------------------------------------------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 103 |             NodeKind::Const { .. } => ("lightgreen", "filled,rounded"),
[INFO] [stdout]     |             ---------------------- matches some of the same values
[INFO] [stdout] 104 |             NodeKind::Binary { .. } | NodeKind::Unary { .. } => ("lightyellow", "filled,rounded"),
[INFO] [stdout]     |             ------------------------------------------------ matches some of the same values
[INFO] [stdout] 105 |             NodeKind::Call { .. } => ("orange", "filled,rounded"),
[INFO] [stdout]     |             --------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 113 |             _ => ("white", "rounded"),
[INFO] [stdout]     |             ^ ...and 3 other patterns collectively make this unreachable
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `outer_state`
[INFO] [stdout]   --> src/rvsdg/lower/theta.rs:48:13
[INFO] [stdout]    |
[INFO] [stdout] 48 |         let outer_state = self.current_state;
[INFO] [stdout]    |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_outer_state`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `call_conv`
[INFO] [stdout]    --> src/rvsdg/to_cranelift.rs:198:9
[INFO] [stdout]     |
[INFO] [stdout] 198 |         call_conv: CallConv,
[INFO] [stdout]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_call_conv`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ty`
[INFO] [stdout]    --> src/rvsdg/to_cranelift.rs:774:31
[INFO] [stdout]     |
[INFO] [stdout] 774 |             NodeKind::Store { ty, inputs } => {
[INFO] [stdout]     |                               ^^ help: try ignoring the field: `ty: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `StructFieldAddr` is never constructed
[INFO] [stdout]    --> src/rvsdg/mod.rs:627:5
[INFO] [stdout]     |
[INFO] [stdout] 623 | pub(crate) enum NodeKeyKind {
[INFO] [stdout]     |                 ----------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 627 |     StructFieldAddr { field: FieldId },
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `NodeKeyKind` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `RegionBuilder` is never constructed
[INFO] [stdout]   --> src/rvsdg/builder.rs:59:12
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub struct RegionBuilder<'a> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]    = note: `#[deny(unused_unconstructable_pub_struct)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `fb` and `region_id` are never read
[INFO] [stdout]   --> src/rvsdg/builder.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub struct RegionBuilder<'a> {
[INFO] [stdout]    |            ------------- fields in this struct
[INFO] [stdout] 60 |     fb: &'a mut FunctionBuilder<'a>,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 61 |     region_id: RegionId,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `block_map` is never read
[INFO] [stdout]   --> src/rvsdg/to_cranelift.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 60 | pub struct FunctionCompiler<'a, 'b> {
[INFO] [stdout]    |            ---------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 71 |     block_map: FxHashMap<NodeId, Vec<Block>>,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/ast/ast_import.rs:91:13
[INFO] [stdout]    |
[INFO] [stdout] 91 |         let i = shared_interner.write();
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&Token` instead of cloning the inner type
[INFO] [stdout]    --> src/ast/ast_struct.rs:141:38
[INFO] [stdout]     |
[INFO] [stdout] 141 |                     let token = token.clone().clone();
[INFO] [stdout]     |                                      ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args_mapped`
[INFO] [stdout]   --> src/ast/ast_import.rs:92:13
[INFO] [stdout]    |
[INFO] [stdout] 92 |         let args_mapped = args
[INFO] [stdout]    |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_args_mapped`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ast/ast_struct.rs:202:13
[INFO] [stdout]     |
[INFO] [stdout] 202 |         let mut i = shared_interner.write();
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cached_node`
[INFO] [stdout]    --> src/rvsdg/builder.rs:157:22
[INFO] [stdout]     |
[INFO] [stdout] 157 |         if let Some(&cached_node) = self.value_cache.get(&key) {
[INFO] [stdout]     |                      ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cached_node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ty`
[INFO] [stdout]    --> src/rvsdg/builder.rs:435:13
[INFO] [stdout]     |
[INFO] [stdout] 435 |         let ty = value.node; // Placeholder - we'd need to track types properly
[INFO] [stdout]     |             ^^ help: if this is intentional, prefix it with an underscore: `_ty`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lang` (lib) due to 1 previous error; 12 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/rvsdg/graphviz.rs:113:13
[INFO] [stdout]     |
[INFO] [stdout] 113 |             _ => ("white", "rounded"),
[INFO] [stdout]     |             ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> src/rvsdg/graphviz.rs:113:13
[INFO] [stdout]     |
[INFO] [stdout] 100 |             NodeKind::Lambda { .. } | NodeKind::Gamma { .. } | NodeKind::Theta { .. } => {
[INFO] [stdout]     |             ------------------------------------------------------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 103 |             NodeKind::Const { .. } => ("lightgreen", "filled,rounded"),
[INFO] [stdout]     |             ---------------------- matches some of the same values
[INFO] [stdout] 104 |             NodeKind::Binary { .. } | NodeKind::Unary { .. } => ("lightyellow", "filled,rounded"),
[INFO] [stdout]     |             ------------------------------------------------ matches some of the same values
[INFO] [stdout] 105 |             NodeKind::Call { .. } => ("orange", "filled,rounded"),
[INFO] [stdout]     |             --------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 113 |             _ => ("white", "rounded"),
[INFO] [stdout]     |             ^ ...and 3 other patterns collectively make this unreachable
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `outer_state`
[INFO] [stdout]   --> src/rvsdg/lower/theta.rs:48:13
[INFO] [stdout]    |
[INFO] [stdout] 48 |         let outer_state = self.current_state;
[INFO] [stdout]    |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_outer_state`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `call_conv`
[INFO] [stdout]    --> src/rvsdg/to_cranelift.rs:198:9
[INFO] [stdout]     |
[INFO] [stdout] 198 |         call_conv: CallConv,
[INFO] [stdout]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_call_conv`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ty`
[INFO] [stdout]    --> src/rvsdg/to_cranelift.rs:774:31
[INFO] [stdout]     |
[INFO] [stdout] 774 |             NodeKind::Store { ty, inputs } => {
[INFO] [stdout]     |                               ^^ help: try ignoring the field: `ty: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `StructFieldAddr` is never constructed
[INFO] [stdout]    --> src/rvsdg/mod.rs:627:5
[INFO] [stdout]     |
[INFO] [stdout] 623 | pub(crate) enum NodeKeyKind {
[INFO] [stdout]     |                 ----------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 627 |     StructFieldAddr { field: FieldId },
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `NodeKeyKind` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `RegionBuilder` is never constructed
[INFO] [stdout]   --> src/rvsdg/builder.rs:59:12
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub struct RegionBuilder<'a> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]    = note: `#[deny(unused_unconstructable_pub_struct)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `fb` and `region_id` are never read
[INFO] [stdout]   --> src/rvsdg/builder.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub struct RegionBuilder<'a> {
[INFO] [stdout]    |            ------------- fields in this struct
[INFO] [stdout] 60 |     fb: &'a mut FunctionBuilder<'a>,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 61 |     region_id: RegionId,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `block_map` is never read
[INFO] [stdout]   --> src/rvsdg/to_cranelift.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 60 | pub struct FunctionCompiler<'a, 'b> {
[INFO] [stdout]    |            ---------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 71 |     block_map: FxHashMap<NodeId, Vec<Block>>,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&Token` instead of cloning the inner type
[INFO] [stdout]    --> src/ast/ast_struct.rs:141:38
[INFO] [stdout]     |
[INFO] [stdout] 141 |                     let token = token.clone().clone();
[INFO] [stdout]     |                                      ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lang` (lib test) due to 1 previous error; 19 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "ec4d9a0aa919250609b59cc0e39039b4774a754be2fa4d6f6cfd902674b0705d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec4d9a0aa919250609b59cc0e39039b4774a754be2fa4d6f6cfd902674b0705d", kill_on_drop: false }`
[INFO] [stdout] ec4d9a0aa919250609b59cc0e39039b4774a754be2fa4d6f6cfd902674b0705d
