[INFO] cloning repository https://github.com/swen128/compiler-book [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/swen128/compiler-book" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fswen128%2Fcompiler-book", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fswen128%2Fcompiler-book'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 3be9db71115e5a101d3d30432db385c311abfd6f [INFO] checking swen128/compiler-book against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fswen128%2Fcompiler-book" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/swen128/compiler-book [INFO] finished tweaking git repo https://github.com/swen128/compiler-book [INFO] tweaked toml for git repo https://github.com/swen128/compiler-book written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/swen128/compiler-book on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/swen128/compiler-book 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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded logos-derive v0.13.0 [INFO] [stderr] Downloaded logos v0.13.0 [INFO] [stderr] Downloaded stacker v0.1.15 [INFO] [stderr] Downloaded logos-codegen v0.13.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 330e5089682d955ea306d144dbf971ddad88e1b98540f041290cdfbfaf8e417a [INFO] running `Command { std: "docker" "start" "-a" "330e5089682d955ea306d144dbf971ddad88e1b98540f041290cdfbfaf8e417a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "330e5089682d955ea306d144dbf971ddad88e1b98540f041290cdfbfaf8e417a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "330e5089682d955ea306d144dbf971ddad88e1b98540f041290cdfbfaf8e417a", kill_on_drop: false }` [INFO] [stdout] 330e5089682d955ea306d144dbf971ddad88e1b98540f041290cdfbfaf8e417a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] cf25ca655e4b91d5df3e18ccf844bd6cb2044f7f477fd08c19da337b3e883d68 [INFO] running `Command { std: "docker" "start" "-a" "cf25ca655e4b91d5df3e18ccf844bd6cb2044f7f477fd08c19da337b3e883d68", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.152 [INFO] [stderr] Compiling proc-macro2 v1.0.76 [INFO] [stderr] Compiling unicode-ident v1.0.12 [INFO] [stderr] Compiling version_check v0.9.4 [INFO] [stderr] Checking zerocopy v0.7.32 [INFO] [stderr] Checking once_cell v1.19.0 [INFO] [stderr] Compiling regex-syntax v0.6.29 [INFO] [stderr] Compiling fnv v1.0.7 [INFO] [stderr] Compiling beef v0.5.2 [INFO] [stderr] Compiling thiserror v1.0.56 [INFO] [stderr] Checking allocator-api2 v0.2.16 [INFO] [stderr] Checking diff v0.1.13 [INFO] [stderr] Checking yansi v0.5.1 [INFO] [stderr] Compiling indoc v2.0.4 [INFO] [stderr] Checking pretty_assertions v1.4.0 [INFO] [stderr] Compiling ahash v0.8.7 [INFO] [stderr] Compiling cc v1.0.83 [INFO] [stderr] Checking hashbrown v0.14.3 [INFO] [stderr] Compiling quote v1.0.35 [INFO] [stderr] Compiling syn v2.0.48 [INFO] [stderr] Compiling psm v0.1.21 [INFO] [stderr] Compiling stacker v0.1.15 [INFO] [stderr] Checking chumsky v0.9.3 [INFO] [stderr] Compiling logos-codegen v0.13.0 [INFO] [stderr] Compiling thiserror-impl v1.0.56 [INFO] [stderr] Compiling logos-derive v0.13.0 [INFO] [stderr] Checking logos v0.13.0 [INFO] [stderr] Checking compiler-book v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `crate::symbol::symbol` [INFO] [stdout] --> src/types.rs:144:9 [INFO] [stdout] | [INFO] [stdout] 144 | use crate::symbol::symbol; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0392]: type parameter `T` is never used [INFO] [stdout] --> src/flow/graph.rs:64:18 [INFO] [stdout] | [INFO] [stdout] 64 | pub struct Table { [INFO] [stdout] | ^ unused type parameter [INFO] [stdout] | [INFO] [stdout] = help: consider removing `T`, referring to it in a field, or using a marker such as `PhantomData` [INFO] [stdout] = help: if you intended `T` to be a const parameter, use `const T: /* Type */` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0392]: type parameter `T` is never used [INFO] [stdout] --> src/flow/graph.rs:64:18 [INFO] [stdout] | [INFO] [stdout] 64 | pub struct Table { [INFO] [stdout] | ^ unused type parameter [INFO] [stdout] | [INFO] [stdout] = help: consider removing `T`, referring to it in a field, or using a marker such as `PhantomData` [INFO] [stdout] = help: if you intended `T` to be a const parameter, use `const T: /* Type */` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `name` [INFO] [stdout] --> src/temp.rs:39:18 [INFO] [stdout] | [INFO] [stdout] 39 | pub fn named(name: &str) -> Self { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_name` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `level` [INFO] [stdout] --> src/translate/level.rs:71:46 [INFO] [stdout] | [INFO] [stdout] 71 | pub fn formals(level: Level) -> Vec> { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_level` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `body` [INFO] [stdout] --> src/frame/risc_v.rs:81:32 [INFO] [stdout] | [INFO] [stdout] 81 | fn proc_entry_exit1(&self, body: crate::ir::Statement) -> crate::ir::Statement { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_body` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `name` [INFO] [stdout] --> src/frame/risc_v.rs:85:22 [INFO] [stdout] | [INFO] [stdout] 85 | fn external_call(name: &str, args: Vec) -> crate::ir::Expr { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_name` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `args` [INFO] [stdout] --> src/frame/risc_v.rs:85:34 [INFO] [stdout] | [INFO] [stdout] 85 | fn external_call(name: &str, args: Vec) -> crate::ir::Expr { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_args` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `frame_pointer` [INFO] [stdout] --> src/frame/risc_v.rs:98:20 [INFO] [stdout] | [INFO] [stdout] 98 | fn expr(&self, frame_pointer: &Temp) -> Expr { [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_frame_pointer` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `frame` [INFO] [stdout] --> src/codegen/risc_v.rs:8:23 [INFO] [stdout] | [INFO] [stdout] 8 | fn codegen(&self, frame: &mut RiscVFrame, statements: Vec) -> Vec { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_frame` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `statements` [INFO] [stdout] --> src/codegen/risc_v.rs:8:47 [INFO] [stdout] | [INFO] [stdout] 8 | fn codegen(&self, frame: &mut RiscVFrame, statements: Vec) -> Vec { [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_statements` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `statement` [INFO] [stdout] --> src/codegen/risc_v.rs:15:20 [INFO] [stdout] | [INFO] [stdout] 15 | fn munch_statement(statement: Statement) -> Vec { [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_statement` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `expr` [INFO] [stdout] --> src/codegen/risc_v.rs:21:15 [INFO] [stdout] | [INFO] [stdout] 21 | fn munch_expr(expr: Expr) -> Vec { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_expr` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `register_map` [INFO] [stdout] --> src/assembly.rs:43:22 [INFO] [stdout] | [INFO] [stdout] 43 | fn format(&self, register_map: impl FnOnce(Temp) -> String) -> String { [INFO] [stdout] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_register_map` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `from` [INFO] [stdout] --> src/flow/graph.rs:16:29 [INFO] [stdout] | [INFO] [stdout] 16 | pub fn make_edge(&self, from: Node, to: Node) { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_from` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `to` [INFO] [stdout] --> src/flow/graph.rs:16:41 [INFO] [stdout] | [INFO] [stdout] 16 | pub fn make_edge(&self, from: Node, to: Node) { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_to` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `from` [INFO] [stdout] --> src/flow/graph.rs:20:31 [INFO] [stdout] | [INFO] [stdout] 20 | pub fn remove_edge(&self, from: Node, to: Node) { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_from` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `to` [INFO] [stdout] --> src/flow/graph.rs:20:43 [INFO] [stdout] | [INFO] [stdout] 20 | pub fn remove_edge(&self, from: Node, to: Node) { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_to` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `node` [INFO] [stdout] --> src/flow/graph.rs:73:29 [INFO] [stdout] | [INFO] [stdout] 73 | pub fn associate(&self, node: Node, value: T) { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_node` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `value` [INFO] [stdout] --> src/flow/graph.rs:73:41 [INFO] [stdout] | [INFO] [stdout] 73 | pub fn associate(&self, node: Node, value: T) { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_value` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `node` [INFO] [stdout] --> src/flow/graph.rs:77:23 [INFO] [stdout] | [INFO] [stdout] 77 | pub fn get(&self, node: Node) -> Option { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_node` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `instructions` [INFO] [stdout] --> src/flow/flow_graph.rs:23:13 [INFO] [stdout] | [INFO] [stdout] 23 | fn from(instructions: Vec) -> Self { [INFO] [stdout] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_instructions` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `graph` [INFO] [stdout] --> src/flow/liveness.rs:33:13 [INFO] [stdout] | [INFO] [stdout] 33 | fn from(graph: FlowGraph) -> Self { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_graph` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `temp` [INFO] [stdout] --> src/flow/liveness.rs:60:27 [INFO] [stdout] | [INFO] [stdout] 60 | pub fn is_live(&self, temp: Temp, node: Node) -> bool { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_temp` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `node` [INFO] [stdout] --> src/flow/liveness.rs:60:39 [INFO] [stdout] | [INFO] [stdout] 60 | pub fn is_live(&self, temp: Temp, node: Node) -> bool { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_node` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0515]: cannot return value referencing local data `set.live_temporaries` [INFO] [stdout] --> src/flow/liveness.rs:68:33 [INFO] [stdout] | [INFO] [stdout] 68 | .map(|set: LiveSet| set.live_temporaries.as_slice()) [INFO] [stdout] | --------------------^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | returns a value referencing data owned by the current function [INFO] [stdout] | `set.live_temporaries` is borrowed here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0392, E0515. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0392`. [INFO] [stdout] [INFO] [stderr] error: could not compile `compiler-book` (lib) due to 2 previous errors; 22 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: unused variable: `name` [INFO] [stdout] --> src/temp.rs:39:18 [INFO] [stdout] | [INFO] [stdout] 39 | pub fn named(name: &str) -> Self { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_name` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `level` [INFO] [stdout] --> src/translate/level.rs:71:46 [INFO] [stdout] | [INFO] [stdout] 71 | pub fn formals(level: Level) -> Vec> { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_level` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `body` [INFO] [stdout] --> src/frame/risc_v.rs:81:32 [INFO] [stdout] | [INFO] [stdout] 81 | fn proc_entry_exit1(&self, body: crate::ir::Statement) -> crate::ir::Statement { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_body` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `name` [INFO] [stdout] --> src/frame/risc_v.rs:85:22 [INFO] [stdout] | [INFO] [stdout] 85 | fn external_call(name: &str, args: Vec) -> crate::ir::Expr { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_name` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `args` [INFO] [stdout] --> src/frame/risc_v.rs:85:34 [INFO] [stdout] | [INFO] [stdout] 85 | fn external_call(name: &str, args: Vec) -> crate::ir::Expr { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_args` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `frame_pointer` [INFO] [stdout] --> src/frame/risc_v.rs:98:20 [INFO] [stdout] | [INFO] [stdout] 98 | fn expr(&self, frame_pointer: &Temp) -> Expr { [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_frame_pointer` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `frame` [INFO] [stdout] --> src/codegen/risc_v.rs:8:23 [INFO] [stdout] | [INFO] [stdout] 8 | fn codegen(&self, frame: &mut RiscVFrame, statements: Vec) -> Vec { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_frame` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `statements` [INFO] [stdout] --> src/codegen/risc_v.rs:8:47 [INFO] [stdout] | [INFO] [stdout] 8 | fn codegen(&self, frame: &mut RiscVFrame, statements: Vec) -> Vec { [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_statements` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `statement` [INFO] [stdout] --> src/codegen/risc_v.rs:15:20 [INFO] [stdout] | [INFO] [stdout] 15 | fn munch_statement(statement: Statement) -> Vec { [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_statement` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `expr` [INFO] [stdout] --> src/codegen/risc_v.rs:21:15 [INFO] [stdout] | [INFO] [stdout] 21 | fn munch_expr(expr: Expr) -> Vec { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_expr` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `register_map` [INFO] [stdout] --> src/assembly.rs:43:22 [INFO] [stdout] | [INFO] [stdout] 43 | fn format(&self, register_map: impl FnOnce(Temp) -> String) -> String { [INFO] [stdout] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_register_map` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `from` [INFO] [stdout] --> src/flow/graph.rs:16:29 [INFO] [stdout] | [INFO] [stdout] 16 | pub fn make_edge(&self, from: Node, to: Node) { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_from` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `to` [INFO] [stdout] --> src/flow/graph.rs:16:41 [INFO] [stdout] | [INFO] [stdout] 16 | pub fn make_edge(&self, from: Node, to: Node) { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_to` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `from` [INFO] [stdout] --> src/flow/graph.rs:20:31 [INFO] [stdout] | [INFO] [stdout] 20 | pub fn remove_edge(&self, from: Node, to: Node) { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_from` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `to` [INFO] [stdout] --> src/flow/graph.rs:20:43 [INFO] [stdout] | [INFO] [stdout] 20 | pub fn remove_edge(&self, from: Node, to: Node) { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_to` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `node` [INFO] [stdout] --> src/flow/graph.rs:73:29 [INFO] [stdout] | [INFO] [stdout] 73 | pub fn associate(&self, node: Node, value: T) { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_node` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `value` [INFO] [stdout] --> src/flow/graph.rs:73:41 [INFO] [stdout] | [INFO] [stdout] 73 | pub fn associate(&self, node: Node, value: T) { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_value` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `node` [INFO] [stdout] --> src/flow/graph.rs:77:23 [INFO] [stdout] | [INFO] [stdout] 77 | pub fn get(&self, node: Node) -> Option { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_node` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `instructions` [INFO] [stdout] --> src/flow/flow_graph.rs:23:13 [INFO] [stdout] | [INFO] [stdout] 23 | fn from(instructions: Vec) -> Self { [INFO] [stdout] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_instructions` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `graph` [INFO] [stdout] --> src/flow/liveness.rs:33:13 [INFO] [stdout] | [INFO] [stdout] 33 | fn from(graph: FlowGraph) -> Self { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_graph` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `temp` [INFO] [stdout] --> src/flow/liveness.rs:60:27 [INFO] [stdout] | [INFO] [stdout] 60 | pub fn is_live(&self, temp: Temp, node: Node) -> bool { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_temp` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `node` [INFO] [stdout] --> src/flow/liveness.rs:60:39 [INFO] [stdout] | [INFO] [stdout] 60 | pub fn is_live(&self, temp: Temp, node: Node) -> bool { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_node` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0515]: cannot return value referencing local data `set.live_temporaries` [INFO] [stdout] --> src/flow/liveness.rs:68:33 [INFO] [stdout] | [INFO] [stdout] 68 | .map(|set: LiveSet| set.live_temporaries.as_slice()) [INFO] [stdout] | --------------------^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | returns a value referencing data owned by the current function [INFO] [stdout] | `set.live_temporaries` is borrowed here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0392, E0515. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0392`. [INFO] [stdout] [INFO] [stderr] error: could not compile `compiler-book` (lib test) due to 2 previous errors; 23 warnings emitted [INFO] running `Command { std: "docker" "inspect" "cf25ca655e4b91d5df3e18ccf844bd6cb2044f7f477fd08c19da337b3e883d68", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cf25ca655e4b91d5df3e18ccf844bd6cb2044f7f477fd08c19da337b3e883d68", kill_on_drop: false }` [INFO] [stdout] cf25ca655e4b91d5df3e18ccf844bd6cb2044f7f477fd08c19da337b3e883d68