[INFO] cloning repository https://github.com/iho/phi
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/iho/phi" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiho%2Fphi", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiho%2Fphi'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] defba557ad959a29ef57abc9058cba02552fa2c5
[INFO] checking iho/phi against master#57f772f25c5ce2bd870d6f8c3ab318eaee5a3326 for pr-133502-22
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiho%2Fphi" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/iho/phi
[INFO] finished tweaking git repo https://github.com/iho/phi
[INFO] tweaked toml for git repo https://github.com/iho/phi written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/iho/phi on toolchain 57f772f25c5ce2bd870d6f8c3ab318eaee5a3326
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+57f772f25c5ce2bd870d6f8c3ab318eaee5a3326" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/iho/phi 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" "+57f772f25c5ce2bd870d6f8c3ab318eaee5a3326" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded stacker v0.1.23
[INFO] [stderr]   Downloaded logos-codegen v0.15.1
[INFO] [stderr]   Downloaded logos-derive v0.15.1
[INFO] [stderr]   Downloaded ariadne v0.4.1
[INFO] [stderr]   Downloaded logos v0.15.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+57f772f25c5ce2bd870d6f8c3ab318eaee5a3326" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cf8230573ca41af754529bef7cd5deeb26fd9b6c70de95de462f1f1260bf2e09
[INFO] running `Command { std: "docker" "start" "-a" "cf8230573ca41af754529bef7cd5deeb26fd9b6c70de95de462f1f1260bf2e09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cf8230573ca41af754529bef7cd5deeb26fd9b6c70de95de462f1f1260bf2e09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf8230573ca41af754529bef7cd5deeb26fd9b6c70de95de462f1f1260bf2e09", kill_on_drop: false }`
[INFO] [stdout] cf8230573ca41af754529bef7cd5deeb26fd9b6c70de95de462f1f1260bf2e09
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "-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" "+57f772f25c5ce2bd870d6f8c3ab318eaee5a3326" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0b1fa7ebb6795021d9e914f58cb61da1327805c8017eca8b695ddfe1188c0209
[INFO] running `Command { std: "docker" "start" "-a" "0b1fa7ebb6795021d9e914f58cb61da1327805c8017eca8b695ddfe1188c0209", kill_on_drop: false }`
[INFO] [stderr]    Compiling object v0.37.3
[INFO] [stderr]    Compiling libc v0.2.182
[INFO] [stderr]    Compiling cc v1.2.56
[INFO] [stderr]    Compiling beef v0.5.2
[INFO] [stderr]     Checking once_cell v1.21.3
[INFO] [stderr]    Compiling im v15.1.0
[INFO] [stderr]    Compiling logos-codegen v0.15.1
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking bitmaps v2.1.0
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]     Checking ariadne v0.4.1
[INFO] [stderr]     Checking rayon v1.11.0
[INFO] [stderr]     Checking rand_xoshiro v0.6.0
[INFO] [stderr]     Checking ahash v0.8.12
[INFO] [stderr]     Checking hashbrown v0.14.5
[INFO] [stderr]     Checking sized-chunks v0.6.5
[INFO] [stderr]    Compiling stacker v0.1.23
[INFO] [stderr]    Compiling logos-derive v0.15.1
[INFO] [stderr]    Compiling ar_archive_writer v0.5.1
[INFO] [stderr]     Checking logos v0.15.1
[INFO] [stderr]    Compiling psm v0.1.30
[INFO] [stderr]     Checking chumsky v0.9.3
[INFO] [stderr]     Checking phi v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ir::Instr::*`
[INFO] [stdout]     --> src/asm_writer.rs:1338:13
[INFO] [stdout]      |
[INFO] [stdout] 1338 |         use ir::Instr::*;
[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: `ir::Instr::*`
[INFO] [stdout]     --> src/asm_writer.rs:1338:13
[INFO] [stdout]      |
[INFO] [stdout] 1338 |         use ir::Instr::*;
[INFO] [stdout]      |             ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]     --> src/beam_writer.rs:1596:9
[INFO] [stdout]      |
[INFO] [stdout] 1477 | ...   ast::Expr::Number(_) | ast::Expr::Float(_) | ast::Expr::String(_) | ast::Expr::Char(_) | ast::Expr::Atom(_) | ast::Expr::Unit => {}
[INFO] [stdout]      |       ----------------------------------------------------------------------------------------------------------------------------- matches all the relevant values
[INFO] [stdout] ...
[INFO] [stdout] 1596 | ...   ast::Expr::Unit => {}
[INFO] [stdout]      |       ^^^^^^^^^^^^^^^ no value can reach this
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]     --> src/beam_writer.rs:1882:9
[INFO] [stdout]      |
[INFO] [stdout] 1882 |         _ => Err(BeamGenError::Unsupported("binder")),
[INFO] [stdout]      |         ^ no value can reach this
[INFO] [stdout]      |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]     --> src/beam_writer.rs:1882:9
[INFO] [stdout]      |
[INFO] [stdout] 1702 |         ast::Binder::Var(n) => {
[INFO] [stdout]      |         ------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 1723 |         ast::Binder::Wildcard => Ok(()),
[INFO] [stdout]      |         --------------------- matches some of the same values
[INFO] [stdout] 1724 |         ast::Binder::Number(n) => {
[INFO] [stdout]      |         ---------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 1728 |         ast::Binder::Atom(a) => {
[INFO] [stdout]      |         -------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 1882 |         _ => Err(BeamGenError::Unsupported("binder")),
[INFO] [stdout]      |         ^ ...and 8 other patterns collectively make this unreachable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]     --> src/beam_writer.rs:2912:9
[INFO] [stdout]      |
[INFO] [stdout] 2692 |         ast::Expr::Record(fields) => {
[INFO] [stdout]      |         ------------------------- matches all the relevant values
[INFO] [stdout] ...
[INFO] [stdout] 2912 |         ast::Expr::Record(_) => Err(BeamGenError::Internal("record_unreachable")),
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^ no value can reach this
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]     --> src/beam_writer.rs:2913:9
[INFO] [stdout]      |
[INFO] [stdout] 2739 |         ast::Expr::RecordUpdate(base, updates) => {
[INFO] [stdout]      |         -------------------------------------- matches all the relevant values
[INFO] [stdout] ...
[INFO] [stdout] 2913 |         ast::Expr::RecordUpdate(_, _) => Err(BeamGenError::Internal("record_update_unreachable")),
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ no value can reach this
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]     --> src/beam_writer.rs:2914:9
[INFO] [stdout]      |
[INFO] [stdout] 2722 |         ast::Expr::FieldAccess(rec_expr, field) => {
[INFO] [stdout]      |         --------------------------------------- matches all the relevant values
[INFO] [stdout] ...
[INFO] [stdout] 2914 |         ast::Expr::FieldAccess(_, _) => Err(BeamGenError::Internal("field_access_unreachable")),
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ no value can reach this
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]     --> src/beam_writer.rs:2916:9
[INFO] [stdout]      |
[INFO] [stdout] 2916 |         _ => {
[INFO] [stdout]      |         ^ no value can reach this
[INFO] [stdout]      |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]     --> src/beam_writer.rs:2916:9
[INFO] [stdout]      |
[INFO] [stdout] 1958 |         ast::Expr::Number(n) => {
[INFO] [stdout]      |         -------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 1963 |         ast::Expr::Char(c) => {
[INFO] [stdout]      |         ------------------ matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 1969 |         ast::Expr::String(s) => {
[INFO] [stdout]      |         -------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 2005 |         ast::Expr::Float(f) => {
[INFO] [stdout]      |         ------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 2916 |         _ => {
[INFO] [stdout]      |         ^ ...and 22 other patterns collectively make this unreachable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]     --> src/beam_writer.rs:1596:9
[INFO] [stdout]      |
[INFO] [stdout] 1477 | ...   ast::Expr::Number(_) | ast::Expr::Float(_) | ast::Expr::String(_) | ast::Expr::Char(_) | ast::Expr::Atom(_) | ast::Expr::Unit => {}
[INFO] [stdout]      |       ----------------------------------------------------------------------------------------------------------------------------- matches all the relevant values
[INFO] [stdout] ...
[INFO] [stdout] 1596 | ...   ast::Expr::Unit => {}
[INFO] [stdout]      |       ^^^^^^^^^^^^^^^ no value can reach this
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]     --> src/beam_writer.rs:1882:9
[INFO] [stdout]      |
[INFO] [stdout] 1882 |         _ => Err(BeamGenError::Unsupported("binder")),
[INFO] [stdout]      |         ^ no value can reach this
[INFO] [stdout]      |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]     --> src/beam_writer.rs:1882:9
[INFO] [stdout]      |
[INFO] [stdout] 1702 |         ast::Binder::Var(n) => {
[INFO] [stdout]      |         ------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 1723 |         ast::Binder::Wildcard => Ok(()),
[INFO] [stdout]      |         --------------------- matches some of the same values
[INFO] [stdout] 1724 |         ast::Binder::Number(n) => {
[INFO] [stdout]      |         ---------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 1728 |         ast::Binder::Atom(a) => {
[INFO] [stdout]      |         -------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 1882 |         _ => Err(BeamGenError::Unsupported("binder")),
[INFO] [stdout]      |         ^ ...and 8 other patterns collectively make this unreachable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]     --> src/beam_writer.rs:2912:9
[INFO] [stdout]      |
[INFO] [stdout] 2692 |         ast::Expr::Record(fields) => {
[INFO] [stdout]      |         ------------------------- matches all the relevant values
[INFO] [stdout] ...
[INFO] [stdout] 2912 |         ast::Expr::Record(_) => Err(BeamGenError::Internal("record_unreachable")),
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^ no value can reach this
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]     --> src/beam_writer.rs:2913:9
[INFO] [stdout]      |
[INFO] [stdout] 2739 |         ast::Expr::RecordUpdate(base, updates) => {
[INFO] [stdout]      |         -------------------------------------- matches all the relevant values
[INFO] [stdout] ...
[INFO] [stdout] 2913 |         ast::Expr::RecordUpdate(_, _) => Err(BeamGenError::Internal("record_update_unreachable")),
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ no value can reach this
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]     --> src/beam_writer.rs:2914:9
[INFO] [stdout]      |
[INFO] [stdout] 2722 |         ast::Expr::FieldAccess(rec_expr, field) => {
[INFO] [stdout]      |         --------------------------------------- matches all the relevant values
[INFO] [stdout] ...
[INFO] [stdout] 2914 |         ast::Expr::FieldAccess(_, _) => Err(BeamGenError::Internal("field_access_unreachable")),
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ no value can reach this
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]     --> src/beam_writer.rs:2916:9
[INFO] [stdout]      |
[INFO] [stdout] 2916 |         _ => {
[INFO] [stdout]      |         ^ no value can reach this
[INFO] [stdout]      |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]     --> src/beam_writer.rs:2916:9
[INFO] [stdout]      |
[INFO] [stdout] 1958 |         ast::Expr::Number(n) => {
[INFO] [stdout]      |         -------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 1963 |         ast::Expr::Char(c) => {
[INFO] [stdout]      |         ------------------ matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 1969 |         ast::Expr::String(s) => {
[INFO] [stdout]      |         -------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 2005 |         ast::Expr::Float(f) => {
[INFO] [stdout]      |         ------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 2916 |         _ => {
[INFO] [stdout]      |         ^ ...and 22 other patterns collectively make this unreachable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Option::<T>::is_none` that must be used
[INFO] [stdout]     --> src/asm_writer.rs:1236:69
[INFO] [stdout]      |
[INFO] [stdout] 1236 | ...   Some(ir::Instr::Ret(_)) => { let _ = self.instrs.pop(); self.instrs.pop().map(|_| ()).is_none(); self.instrs.last().cloned() }
[INFO] [stdout]      |                                                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: if you intended to assert that this doesn't have a value, consider wrapping this in an `assert!()` instead
[INFO] [stdout]      = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]      |
[INFO] [stdout] 1236 |             Some(ir::Instr::Ret(_)) => { let _ = self.instrs.pop(); let _ = self.instrs.pop().map(|_| ()).is_none(); self.instrs.last().cloned() }
[INFO] [stdout]      |                                                                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Option::<T>::is_none` that must be used
[INFO] [stdout]     --> src/asm_writer.rs:1236:69
[INFO] [stdout]      |
[INFO] [stdout] 1236 | ...   Some(ir::Instr::Ret(_)) => { let _ = self.instrs.pop(); self.instrs.pop().map(|_| ()).is_none(); self.instrs.last().cloned() }
[INFO] [stdout]      |                                                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: if you intended to assert that this doesn't have a value, consider wrapping this in an `assert!()` instead
[INFO] [stdout]      = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]      |
[INFO] [stdout] 1236 |             Some(ir::Instr::Ret(_)) => { let _ = self.instrs.pop(); let _ = self.instrs.pop().map(|_| ()).is_none(); self.instrs.last().cloned() }
[INFO] [stdout]      |                                                                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> tests/beam_tests.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `TAG_U` is never used
[INFO] [stdout]  --> tests/beam_tests.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 7 | const TAG_U: u8 = 0;
[INFO] [stdout]   |       ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ir::Instr::*`
[INFO] [stdout]     --> src/asm_writer.rs:1338:13
[INFO] [stdout]      |
[INFO] [stdout] 1338 |         use ir::Instr::*;
[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: `ir::Instr::*`
[INFO] [stdout]     --> src/asm_writer.rs:1338:13
[INFO] [stdout]      |
[INFO] [stdout] 1338 |         use ir::Instr::*;
[INFO] [stdout]      |             ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]     --> src/beam_writer.rs:1596:9
[INFO] [stdout]      |
[INFO] [stdout] 1477 | ...   ast::Expr::Number(_) | ast::Expr::Float(_) | ast::Expr::String(_) | ast::Expr::Char(_) | ast::Expr::Atom(_) | ast::Expr::Unit => {}
[INFO] [stdout]      |       ----------------------------------------------------------------------------------------------------------------------------- matches all the relevant values
[INFO] [stdout] ...
[INFO] [stdout] 1596 | ...   ast::Expr::Unit => {}
[INFO] [stdout]      |       ^^^^^^^^^^^^^^^ no value can reach this
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]     --> src/beam_writer.rs:1882:9
[INFO] [stdout]      |
[INFO] [stdout] 1882 |         _ => Err(BeamGenError::Unsupported("binder")),
[INFO] [stdout]      |         ^ no value can reach this
[INFO] [stdout]      |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]     --> src/beam_writer.rs:1882:9
[INFO] [stdout]      |
[INFO] [stdout] 1702 |         ast::Binder::Var(n) => {
[INFO] [stdout]      |         ------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 1723 |         ast::Binder::Wildcard => Ok(()),
[INFO] [stdout]      |         --------------------- matches some of the same values
[INFO] [stdout] 1724 |         ast::Binder::Number(n) => {
[INFO] [stdout]      |         ---------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 1728 |         ast::Binder::Atom(a) => {
[INFO] [stdout]      |         -------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 1882 |         _ => Err(BeamGenError::Unsupported("binder")),
[INFO] [stdout]      |         ^ ...and 8 other patterns collectively make this unreachable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]     --> src/beam_writer.rs:2912:9
[INFO] [stdout]      |
[INFO] [stdout] 2692 |         ast::Expr::Record(fields) => {
[INFO] [stdout]      |         ------------------------- matches all the relevant values
[INFO] [stdout] ...
[INFO] [stdout] 2912 |         ast::Expr::Record(_) => Err(BeamGenError::Internal("record_unreachable")),
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^ no value can reach this
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]     --> src/beam_writer.rs:2913:9
[INFO] [stdout]      |
[INFO] [stdout] 2739 |         ast::Expr::RecordUpdate(base, updates) => {
[INFO] [stdout]      |         -------------------------------------- matches all the relevant values
[INFO] [stdout] ...
[INFO] [stdout] 2913 |         ast::Expr::RecordUpdate(_, _) => Err(BeamGenError::Internal("record_update_unreachable")),
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ no value can reach this
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]     --> src/beam_writer.rs:2914:9
[INFO] [stdout]      |
[INFO] [stdout] 2722 |         ast::Expr::FieldAccess(rec_expr, field) => {
[INFO] [stdout]      |         --------------------------------------- matches all the relevant values
[INFO] [stdout] ...
[INFO] [stdout] 2914 |         ast::Expr::FieldAccess(_, _) => Err(BeamGenError::Internal("field_access_unreachable")),
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ no value can reach this
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]     --> src/beam_writer.rs:2916:9
[INFO] [stdout]      |
[INFO] [stdout] 2916 |         _ => {
[INFO] [stdout]      |         ^ no value can reach this
[INFO] [stdout]      |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]     --> src/beam_writer.rs:2916:9
[INFO] [stdout]      |
[INFO] [stdout] 1958 |         ast::Expr::Number(n) => {
[INFO] [stdout]      |         -------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 1963 |         ast::Expr::Char(c) => {
[INFO] [stdout]      |         ------------------ matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 1969 |         ast::Expr::String(s) => {
[INFO] [stdout]      |         -------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 2005 |         ast::Expr::Float(f) => {
[INFO] [stdout]      |         ------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 2916 |         _ => {
[INFO] [stdout]      |         ^ ...and 22 other patterns collectively make this unreachable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]     --> src/beam_writer.rs:1596:9
[INFO] [stdout]      |
[INFO] [stdout] 1477 | ...   ast::Expr::Number(_) | ast::Expr::Float(_) | ast::Expr::String(_) | ast::Expr::Char(_) | ast::Expr::Atom(_) | ast::Expr::Unit => {}
[INFO] [stdout]      |       ----------------------------------------------------------------------------------------------------------------------------- matches all the relevant values
[INFO] [stdout] ...
[INFO] [stdout] 1596 | ...   ast::Expr::Unit => {}
[INFO] [stdout]      |       ^^^^^^^^^^^^^^^ no value can reach this
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]     --> src/beam_writer.rs:1882:9
[INFO] [stdout]      |
[INFO] [stdout] 1882 |         _ => Err(BeamGenError::Unsupported("binder")),
[INFO] [stdout]      |         ^ no value can reach this
[INFO] [stdout]      |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]     --> src/beam_writer.rs:1882:9
[INFO] [stdout]      |
[INFO] [stdout] 1702 |         ast::Binder::Var(n) => {
[INFO] [stdout]      |         ------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 1723 |         ast::Binder::Wildcard => Ok(()),
[INFO] [stdout]      |         --------------------- matches some of the same values
[INFO] [stdout] 1724 |         ast::Binder::Number(n) => {
[INFO] [stdout]      |         ---------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 1728 |         ast::Binder::Atom(a) => {
[INFO] [stdout]      |         -------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 1882 |         _ => Err(BeamGenError::Unsupported("binder")),
[INFO] [stdout]      |         ^ ...and 8 other patterns collectively make this unreachable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]     --> src/beam_writer.rs:2912:9
[INFO] [stdout]      |
[INFO] [stdout] 2692 |         ast::Expr::Record(fields) => {
[INFO] [stdout]      |         ------------------------- matches all the relevant values
[INFO] [stdout] ...
[INFO] [stdout] 2912 |         ast::Expr::Record(_) => Err(BeamGenError::Internal("record_unreachable")),
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^ no value can reach this
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]     --> src/beam_writer.rs:2913:9
[INFO] [stdout]      |
[INFO] [stdout] 2739 |         ast::Expr::RecordUpdate(base, updates) => {
[INFO] [stdout]      |         -------------------------------------- matches all the relevant values
[INFO] [stdout] ...
[INFO] [stdout] 2913 |         ast::Expr::RecordUpdate(_, _) => Err(BeamGenError::Internal("record_update_unreachable")),
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ no value can reach this
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]     --> src/beam_writer.rs:2914:9
[INFO] [stdout]      |
[INFO] [stdout] 2722 |         ast::Expr::FieldAccess(rec_expr, field) => {
[INFO] [stdout]      |         --------------------------------------- matches all the relevant values
[INFO] [stdout] ...
[INFO] [stdout] 2914 |         ast::Expr::FieldAccess(_, _) => Err(BeamGenError::Internal("field_access_unreachable")),
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ no value can reach this
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]     --> src/beam_writer.rs:2916:9
[INFO] [stdout]      |
[INFO] [stdout] 2916 |         _ => {
[INFO] [stdout]      |         ^ no value can reach this
[INFO] [stdout]      |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]     --> src/beam_writer.rs:2916:9
[INFO] [stdout]      |
[INFO] [stdout] 1958 |         ast::Expr::Number(n) => {
[INFO] [stdout]      |         -------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 1963 |         ast::Expr::Char(c) => {
[INFO] [stdout]      |         ------------------ matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 1969 |         ast::Expr::String(s) => {
[INFO] [stdout]      |         -------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 2005 |         ast::Expr::Float(f) => {
[INFO] [stdout]      |         ------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 2916 |         _ => {
[INFO] [stdout]      |         ^ ...and 22 other patterns collectively make this unreachable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `regex_capture` is never used
[INFO] [stdout]    --> src/main.rs:789:4
[INFO] [stdout]     |
[INFO] [stdout] 789 | fn regex_capture(pattern: &[u8], content: &str) -> Option<String> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `args` and `members` are never read
[INFO] [stdout]   --> src/env.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct ClassInfo {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] 10 |     pub args: Vec<String>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 11 |     pub members: Vec<crate::ast::Decl>, // TypeSignature decls
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ClassInfo` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `dict_name`, `members`, `constraints`, and `module` are never read
[INFO] [stdout]   --> src/env.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct InstanceInfo {
[INFO] [stdout]    |            ------------ fields in this struct
[INFO] [stdout] 16 |     pub types: Vec<crate::type_sys::MonoType>,
[INFO] [stdout] 17 |     pub dict_name: String,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 18 |     pub members: Vec<crate::ast::Decl>, // Value decls
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 19 |     pub constraints: Vec<crate::type_sys::MonoType>,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 20 |     pub module: String,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `InstanceInfo` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant `TOTAL` is never used
[INFO] [stdout]   --> src/ir.rs:45:15
[INFO] [stdout]    |
[INFO] [stdout] 30 | impl PReg {
[INFO] [stdout]    | --------- associated constant in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 45 |     pub const TOTAL: u8 = 16;
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `invert` is never used
[INFO] [stdout]   --> src/ir.rs:76:12
[INFO] [stdout]    |
[INFO] [stdout] 68 | impl Cond {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 76 |     pub fn invert(self) -> Self {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Load`, `BranchEq`, and `BranchTrue` are never constructed
[INFO] [stdout]    --> src/ir.rs:121:5
[INFO] [stdout]     |
[INFO] [stdout]  92 | pub enum Instr {
[INFO] [stdout]     |          ----- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 121 |     Load(VReg, VReg, i32),
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 137 |     BranchEq(VReg, i64, Label),
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 141 |     BranchTrue(VReg, Label),
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Instr` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `arity` are never read
[INFO] [stdout]    --> src/ir.rs:154:9
[INFO] [stdout]     |
[INFO] [stdout] 153 | pub struct IrFun {
[INFO] [stdout]     |            ----- fields in this struct
[INFO] [stdout] 154 |     pub name: String,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 155 |     pub arity: u32,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `IrFun` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `IrModule` is never constructed
[INFO] [stdout]    --> src/ir.rs:164:12
[INFO] [stdout]     |
[INFO] [stdout] 164 | pub struct IrModule {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is_expired_before` and `starts_at_or_before` are never used
[INFO] [stdout]    --> src/ir.rs:184:12
[INFO] [stdout]     |
[INFO] [stdout] 183 | impl Interval {
[INFO] [stdout]     | ------------- methods in this implementation
[INFO] [stdout] 184 |     pub fn is_expired_before(&self, pos: u32) -> bool { self.end <= pos }
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 185 |     pub fn starts_at_or_before(&self, pos: u32) -> bool { self.start <= pos }
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `reg` is never used
[INFO] [stdout]   --> src/regalloc.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 29 | impl Location {
[INFO] [stdout]    | ------------- method in this implementation
[INFO] [stdout] 30 |     pub fn is_reg(self) -> bool { matches!(self, Location::Reg(_)) }
[INFO] [stdout] 31 |     pub fn reg(self) -> Option<PReg> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `spill_offset` is never used
[INFO] [stdout]    --> src/regalloc.rs:171:8
[INFO] [stdout]     |
[INFO] [stdout] 171 | pub fn spill_offset(slot: u32, spill_base: u32) -> i32 {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Option::<T>::is_none` that must be used
[INFO] [stdout]     --> src/asm_writer.rs:1236:69
[INFO] [stdout]      |
[INFO] [stdout] 1236 | ...   Some(ir::Instr::Ret(_)) => { let _ = self.instrs.pop(); self.instrs.pop().map(|_| ()).is_none(); self.instrs.last().cloned() }
[INFO] [stdout]      |                                                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: if you intended to assert that this doesn't have a value, consider wrapping this in an `assert!()` instead
[INFO] [stdout]      = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]      |
[INFO] [stdout] 1236 |             Some(ir::Instr::Ret(_)) => { let _ = self.instrs.pop(); let _ = self.instrs.pop().map(|_| ()).is_none(); self.instrs.last().cloned() }
[INFO] [stdout]      |                                                                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `regex_capture` is never used
[INFO] [stdout]    --> src/main.rs:789:4
[INFO] [stdout]     |
[INFO] [stdout] 789 | fn regex_capture(pattern: &[u8], content: &str) -> Option<String> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `args` and `members` are never read
[INFO] [stdout]   --> src/env.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct ClassInfo {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] 10 |     pub args: Vec<String>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 11 |     pub members: Vec<crate::ast::Decl>, // TypeSignature decls
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ClassInfo` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `dict_name`, `members`, `constraints`, and `module` are never read
[INFO] [stdout]   --> src/env.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct InstanceInfo {
[INFO] [stdout]    |            ------------ fields in this struct
[INFO] [stdout] 16 |     pub types: Vec<crate::type_sys::MonoType>,
[INFO] [stdout] 17 |     pub dict_name: String,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 18 |     pub members: Vec<crate::ast::Decl>, // Value decls
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 19 |     pub constraints: Vec<crate::type_sys::MonoType>,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 20 |     pub module: String,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `InstanceInfo` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant `TOTAL` is never used
[INFO] [stdout]   --> src/ir.rs:45:15
[INFO] [stdout]    |
[INFO] [stdout] 30 | impl PReg {
[INFO] [stdout]    | --------- associated constant in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 45 |     pub const TOTAL: u8 = 16;
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `invert` is never used
[INFO] [stdout]   --> src/ir.rs:76:12
[INFO] [stdout]    |
[INFO] [stdout] 68 | impl Cond {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 76 |     pub fn invert(self) -> Self {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Load`, `BranchEq`, and `BranchTrue` are never constructed
[INFO] [stdout]    --> src/ir.rs:121:5
[INFO] [stdout]     |
[INFO] [stdout]  92 | pub enum Instr {
[INFO] [stdout]     |          ----- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 121 |     Load(VReg, VReg, i32),
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 137 |     BranchEq(VReg, i64, Label),
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 141 |     BranchTrue(VReg, Label),
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Instr` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `arity` are never read
[INFO] [stdout]    --> src/ir.rs:154:9
[INFO] [stdout]     |
[INFO] [stdout] 153 | pub struct IrFun {
[INFO] [stdout]     |            ----- fields in this struct
[INFO] [stdout] 154 |     pub name: String,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 155 |     pub arity: u32,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `IrFun` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `IrModule` is never constructed
[INFO] [stdout]    --> src/ir.rs:164:12
[INFO] [stdout]     |
[INFO] [stdout] 164 | pub struct IrModule {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is_expired_before` and `starts_at_or_before` are never used
[INFO] [stdout]    --> src/ir.rs:184:12
[INFO] [stdout]     |
[INFO] [stdout] 183 | impl Interval {
[INFO] [stdout]     | ------------- methods in this implementation
[INFO] [stdout] 184 |     pub fn is_expired_before(&self, pos: u32) -> bool { self.end <= pos }
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 185 |     pub fn starts_at_or_before(&self, pos: u32) -> bool { self.start <= pos }
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is_reg` and `reg` are never used
[INFO] [stdout]   --> src/regalloc.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 29 | impl Location {
[INFO] [stdout]    | ------------- methods in this implementation
[INFO] [stdout] 30 |     pub fn is_reg(self) -> bool { matches!(self, Location::Reg(_)) }
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 31 |     pub fn reg(self) -> Option<PReg> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `spill_offset` is never used
[INFO] [stdout]    --> src/regalloc.rs:171:8
[INFO] [stdout]     |
[INFO] [stdout] 171 | pub fn spill_offset(slot: u32, spill_base: u32) -> i32 {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Option::<T>::is_none` that must be used
[INFO] [stdout]     --> src/asm_writer.rs:1236:69
[INFO] [stdout]      |
[INFO] [stdout] 1236 | ...   Some(ir::Instr::Ret(_)) => { let _ = self.instrs.pop(); self.instrs.pop().map(|_| ()).is_none(); self.instrs.last().cloned() }
[INFO] [stdout]      |                                                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: if you intended to assert that this doesn't have a value, consider wrapping this in an `assert!()` instead
[INFO] [stdout]      = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]      |
[INFO] [stdout] 1236 |             Some(ir::Instr::Ret(_)) => { let _ = self.instrs.pop(); let _ = self.instrs.pop().map(|_| ()).is_none(); self.instrs.last().cloned() }
[INFO] [stdout]      |                                                                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 30.34s
[INFO] running `Command { std: "docker" "inspect" "0b1fa7ebb6795021d9e914f58cb61da1327805c8017eca8b695ddfe1188c0209", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b1fa7ebb6795021d9e914f58cb61da1327805c8017eca8b695ddfe1188c0209", kill_on_drop: false }`
[INFO] [stdout] 0b1fa7ebb6795021d9e914f58cb61da1327805c8017eca8b695ddfe1188c0209
