[INFO] cloning repository https://github.com/Leikoe/linear_layouts
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Leikoe/linear_layouts" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLeikoe%2Flinear_layouts", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLeikoe%2Flinear_layouts'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5911fc5dbe90e4996cdb15927c87411759cb3563
[INFO] checking Leikoe/linear_layouts against try#342ed2e8608ee307743c341962b427652cdb06e9 for pr-146562
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLeikoe%2Flinear_layouts" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Leikoe/linear_layouts
[INFO] finished tweaking git repo https://github.com/Leikoe/linear_layouts
[INFO] tweaked toml for git repo https://github.com/Leikoe/linear_layouts written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Leikoe/linear_layouts on toolchain 342ed2e8608ee307743c341962b427652cdb06e9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+342ed2e8608ee307743c341962b427652cdb06e9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Leikoe/linear_layouts 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" "+342ed2e8608ee307743c341962b427652cdb06e9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking Leikoe/linear_layouts against try#342ed2e8608ee307743c341962b427652cdb06e9 for pr-146562
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLeikoe%2Flinear_layouts" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Leikoe/linear_layouts
[INFO] finished tweaking git repo https://github.com/Leikoe/linear_layouts
[INFO] tweaked toml for git repo https://github.com/Leikoe/linear_layouts written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Leikoe/linear_layouts on toolchain 342ed2e8608ee307743c341962b427652cdb06e9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+342ed2e8608ee307743c341962b427652cdb06e9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Leikoe/linear_layouts 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" "+342ed2e8608ee307743c341962b427652cdb06e9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+342ed2e8608ee307743c341962b427652cdb06e9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dc396d48f633844892a10f1d14f9392fc1c3da8f7248b6efcb98ec88cfe99776
[INFO] running `Command { std: "docker" "start" "-a" "dc396d48f633844892a10f1d14f9392fc1c3da8f7248b6efcb98ec88cfe99776", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dc396d48f633844892a10f1d14f9392fc1c3da8f7248b6efcb98ec88cfe99776", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc396d48f633844892a10f1d14f9392fc1c3da8f7248b6efcb98ec88cfe99776", kill_on_drop: false }`
[INFO] [stdout] dc396d48f633844892a10f1d14f9392fc1c3da8f7248b6efcb98ec88cfe99776
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+342ed2e8608ee307743c341962b427652cdb06e9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 900bfec29e5493780a89bb76527cdc47139b3a00ee01f8b9857f535c30da5316
[INFO] running `Command { std: "docker" "start" "-a" "900bfec29e5493780a89bb76527cdc47139b3a00ee01f8b9857f535c30da5316", kill_on_drop: false }`
[INFO] [stderr]     Checking hashbrown v0.15.3
[INFO] [stderr]     Checking indexmap v2.9.0
[INFO] [stderr]     Checking linear_layout v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Type`
[INFO] [stdout]  --> src/lib.rs:3:35
[INFO] [stdout]   |
[INFO] [stdout] 3 | use algebra_ast::{BinaryOp, Expr, Type};
[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: `Type`
[INFO] [stdout]  --> src/lib.rs:3:35
[INFO] [stdout]   |
[INFO] [stdout] 3 | use algebra_ast::{BinaryOp, Expr, Type};
[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 variable: `require_surjective`
[INFO] [stdout]   --> src/lib.rs:98:32
[INFO] [stdout]    |
[INFO] [stdout] 98 |     fn check_invariants(&self, require_surjective: bool) -> Option<String> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_require_surjective`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `cast` is never used
[INFO] [stdout]   --> src/algebra_ast.rs:50:12
[INFO] [stdout]    |
[INFO] [stdout] 21 | impl Literal {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 50 |     pub fn cast(self, to_ty: Type) -> Literal {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Neg` and `Not` are never constructed
[INFO] [stdout]    --> src/algebra_ast.rs:122:5
[INFO] [stdout]     |
[INFO] [stdout] 121 | pub enum UnaryOp {
[INFO] [stdout]     |          ------- variants in this enum
[INFO] [stdout] 122 |     Neg,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 123 |     Not,
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `UnaryOp` 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: multiple variants are never constructed
[INFO] [stdout]    --> src/algebra_ast.rs:129:5
[INFO] [stdout]     |
[INFO] [stdout] 127 | pub enum BinaryOp {
[INFO] [stdout]     |          -------- variants in this enum
[INFO] [stdout] 128 |     Add,
[INFO] [stdout] 129 |     Sub,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 130 |     Mul,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] ...
[INFO] [stdout] 134 |     Ne,
[INFO] [stdout]     |     ^^
[INFO] [stdout] 135 |     Lt,
[INFO] [stdout]     |     ^^
[INFO] [stdout] 136 |     Le,
[INFO] [stdout]     |     ^^
[INFO] [stdout] 137 |     Gt,
[INFO] [stdout]     |     ^^
[INFO] [stdout] 138 |     Ge,
[INFO] [stdout]     |     ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `BinaryOp` 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: methods `associative`, `identity`, and `absorbing` are never used
[INFO] [stdout]    --> src/algebra_ast.rs:142:12
[INFO] [stdout]     |
[INFO] [stdout] 141 | impl BinaryOp {
[INFO] [stdout]     | ------------- methods in this implementation
[INFO] [stdout] 142 |     pub fn associative(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 148 |     pub fn identity(&self) -> Option<Literal> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 157 |     pub fn absorbing(&self) -> Option<Literal> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `require_surjective`
[INFO] [stdout]   --> src/lib.rs:98:32
[INFO] [stdout]    |
[INFO] [stdout] 98 |     fn check_invariants(&self, require_surjective: bool) -> Option<String> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_require_surjective`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `from_parts_infer_out_dim_sizes`, `check_invariants`, and `apply` are never used
[INFO] [stdout]    --> src/lib.rs:41:8
[INFO] [stdout]     |
[INFO] [stdout]  32 | impl LinearLayout {
[INFO] [stdout]     | ----------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  41 |     fn from_parts_infer_out_dim_sizes<N: Into<String> + Copy>(
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  98 |     fn check_invariants(&self, require_surjective: bool) -> Option<String> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 102 |     fn apply<'a>(&self, indices: &HashMap<String, Expr>) -> HashMap<String, Expr> {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Literal` is never used
[INFO] [stdout]  --> src/algebra_ast.rs:9:10
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub enum Literal {
[INFO] [stdout]   |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `ty`, `value`, and `cast` are never used
[INFO] [stdout]   --> src/algebra_ast.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 21 | impl Literal {
[INFO] [stdout]    | ------------ methods in this implementation
[INFO] [stdout] 22 |     pub fn ty(&self) -> Type {
[INFO] [stdout]    |            ^^
[INFO] [stdout] ...
[INFO] [stdout] 36 |     fn value(&self) -> String {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 50 |     pub fn cast(self, to_ty: Type) -> Literal {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Const` is never constructed
[INFO] [stdout]   --> src/algebra_ast.rs:71:12
[INFO] [stdout]    |
[INFO] [stdout] 71 | pub struct Const(pub Literal);
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Type` is never used
[INFO] [stdout]   --> src/algebra_ast.rs:80:10
[INFO] [stdout]    |
[INFO] [stdout] 80 | pub enum Type {
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `suffix` is never used
[INFO] [stdout]   --> src/algebra_ast.rs:93:12
[INFO] [stdout]    |
[INFO] [stdout] 92 | impl Type {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] 93 |     pub fn suffix(&self) -> &'static str {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Var` is never constructed
[INFO] [stdout]    --> src/algebra_ast.rs:115:12
[INFO] [stdout]     |
[INFO] [stdout] 115 | pub struct Var {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `UnaryOp` is never used
[INFO] [stdout]    --> src/algebra_ast.rs:121:10
[INFO] [stdout]     |
[INFO] [stdout] 121 | pub enum UnaryOp {
[INFO] [stdout]     |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `BinaryOp` is never used
[INFO] [stdout]    --> src/algebra_ast.rs:127:10
[INFO] [stdout]     |
[INFO] [stdout] 127 | pub enum BinaryOp {
[INFO] [stdout]     |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `associative`, `identity`, `absorbing`, `is_comparison`, `apply`, and `name` are never used
[INFO] [stdout]    --> src/algebra_ast.rs:142:12
[INFO] [stdout]     |
[INFO] [stdout] 141 | impl BinaryOp {
[INFO] [stdout]     | ------------- methods in this implementation
[INFO] [stdout] 142 |     pub fn associative(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 148 |     pub fn identity(&self) -> Option<Literal> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 157 |     pub fn absorbing(&self) -> Option<Literal> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 164 |     pub fn is_comparison(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 170 |     pub fn apply(&self, a: &Literal, b: &Literal) -> Option<Literal> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 192 |     pub fn name(&self) -> &'static str {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ExprKind` is never used
[INFO] [stdout]    --> src/algebra_ast.rs:210:10
[INFO] [stdout]     |
[INFO] [stdout] 210 | pub enum ExprKind {
[INFO] [stdout]     |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Expr` is never constructed
[INFO] [stdout]    --> src/algebra_ast.rs:246:12
[INFO] [stdout]     |
[INFO] [stdout] 246 | pub struct Expr(Rc<ExprKind>);
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/algebra_ast.rs:250:12
[INFO] [stdout]     |
[INFO] [stdout] 248 | impl Expr {
[INFO] [stdout]     | --------- associated items in this implementation
[INFO] [stdout] 249 |     /// Helpers for constructing literals of all supported types:
[INFO] [stdout] 250 |     pub fn i8_const(x: i8) -> Expr {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 253 |     pub fn u8_const(x: u8) -> Expr {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 256 |     pub fn i16_const(x: i16) -> Expr {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 259 |     pub fn u16_const(x: u16) -> Expr {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 262 |     pub fn i32_const(x: i32) -> Expr {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 265 |     pub fn u32_const(x: u32) -> Expr {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 268 |     pub fn f32_const(x: f32) -> Expr {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 271 |     pub fn f64_const(x: f64) -> Expr {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 274 |     pub fn bool_const(b: bool) -> Expr {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 278 |     pub fn const_from_lit(lit: Literal) -> Expr {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 281 |     pub fn var(name: impl Into<String>, ty: Type) -> Expr {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 287 |     pub fn unary(op: UnaryOp, expr: Expr) -> Expr {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 291 |     pub fn binary(op: BinaryOp, left: Expr, right: Expr) -> Expr {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 294 |     pub fn cast(expr: Expr, to_ty: Type) -> Expr {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 297 |     pub fn select(cond: Expr, tv: Expr, fv: Expr) -> Expr {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 306 |     pub fn let_in(name: impl Into<String>, ty: Type, value: Expr, body: Expr) -> Expr {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 315 |     pub fn ty(&self) -> Type {
[INFO] [stdout]     |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `RewriteRule` is never used
[INFO] [stdout]    --> src/algebra_ast.rs:375:10
[INFO] [stdout]     |
[INFO] [stdout] 375 | pub type RewriteRule = fn(&Expr) -> Option<Expr>;
[INFO] [stdout]     |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rewrite_once` is never used
[INFO] [stdout]    --> src/algebra_ast.rs:377:8
[INFO] [stdout]     |
[INFO] [stdout] 377 | pub fn rewrite_once(expr: &Expr, rules: &[RewriteRule]) -> Expr {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rewrite_fixpoint` is never used
[INFO] [stdout]    --> src/algebra_ast.rs:432:8
[INFO] [stdout]     |
[INFO] [stdout] 432 | pub fn rewrite_fixpoint(expr: Expr, rules: &[RewriteRule]) -> Expr {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fold_bin_literals` is never used
[INFO] [stdout]    --> src/algebra_ast.rs:447:4
[INFO] [stdout]     |
[INFO] [stdout] 447 | fn fold_bin_literals(expr: &Expr) -> Option<Expr> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fold_add_zero_left` is never used
[INFO] [stdout]    --> src/algebra_ast.rs:460:4
[INFO] [stdout]     |
[INFO] [stdout] 460 | fn fold_add_zero_left(expr: &Expr) -> Option<Expr> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fold_add_zero_right` is never used
[INFO] [stdout]    --> src/algebra_ast.rs:511:4
[INFO] [stdout]     |
[INFO] [stdout] 511 | fn fold_add_zero_right(expr: &Expr) -> Option<Expr> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fold_xor_zero_left` is never used
[INFO] [stdout]    --> src/algebra_ast.rs:562:4
[INFO] [stdout]     |
[INFO] [stdout] 562 | fn fold_xor_zero_left(expr: &Expr) -> Option<Expr> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fold_xor_zero_right` is never used
[INFO] [stdout]    --> src/algebra_ast.rs:604:4
[INFO] [stdout]     |
[INFO] [stdout] 604 | fn fold_xor_zero_right(expr: &Expr) -> Option<Expr> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `assoc_add` is never used
[INFO] [stdout]    --> src/algebra_ast.rs:646:4
[INFO] [stdout]     |
[INFO] [stdout] 646 | fn assoc_add(expr: &Expr) -> Option<Expr> {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fold_cmp_literals` is never used
[INFO] [stdout]    --> src/algebra_ast.rs:671:4
[INFO] [stdout]     |
[INFO] [stdout] 671 | fn fold_cmp_literals(expr: &Expr) -> Option<Expr> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fold_select_and_mask` is never used
[INFO] [stdout]    --> src/algebra_ast.rs:686:4
[INFO] [stdout]     |
[INFO] [stdout] 686 | fn fold_select_and_mask(expr: &Expr) -> Option<Expr> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fold_and_mask_xor_chain` is never used
[INFO] [stdout]    --> src/algebra_ast.rs:731:4
[INFO] [stdout]     |
[INFO] [stdout] 731 | fn fold_and_mask_xor_chain(expr: &Expr) -> Option<Expr> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `RULES` is never used
[INFO] [stdout]    --> src/algebra_ast.rs:820:11
[INFO] [stdout]     |
[INFO] [stdout] 820 | pub const RULES: &[RewriteRule] = &[
[INFO] [stdout]     |           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.72s
[INFO] running `Command { std: "docker" "inspect" "900bfec29e5493780a89bb76527cdc47139b3a00ee01f8b9857f535c30da5316", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "900bfec29e5493780a89bb76527cdc47139b3a00ee01f8b9857f535c30da5316", kill_on_drop: false }`
[INFO] [stdout] 900bfec29e5493780a89bb76527cdc47139b3a00ee01f8b9857f535c30da5316