[INFO] cloning repository https://github.com/maxastyler/scheme-llvm [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/maxastyler/scheme-llvm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaxastyler%2Fscheme-llvm", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaxastyler%2Fscheme-llvm'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] def48bf96fb943e82aec56e4251ea63f11fd44a1 [INFO] checking maxastyler/scheme-llvm against try#1f308f12738d8cc40bb23bf0c8114b37c164bb49 for pr-137268 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaxastyler%2Fscheme-llvm" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/maxastyler/scheme-llvm on toolchain 1f308f12738d8cc40bb23bf0c8114b37c164bb49 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f308f12738d8cc40bb23bf0c8114b37c164bb49" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/maxastyler/scheme-llvm [INFO] finished tweaking git repo https://github.com/maxastyler/scheme-llvm [INFO] tweaked toml for git repo https://github.com/maxastyler/scheme-llvm written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/maxastyler/scheme-llvm 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" "+1f308f12738d8cc40bb23bf0c8114b37c164bb49" "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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1f308f12738d8cc40bb23bf0c8114b37c164bb49" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 489217b5b181f150a1276977d897c22b909888262a08436970b02ca07f223acd [INFO] running `Command { std: "docker" "start" "-a" "489217b5b181f150a1276977d897c22b909888262a08436970b02ca07f223acd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "489217b5b181f150a1276977d897c22b909888262a08436970b02ca07f223acd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "489217b5b181f150a1276977d897c22b909888262a08436970b02ca07f223acd", kill_on_drop: false }` [INFO] [stdout] 489217b5b181f150a1276977d897c22b909888262a08436970b02ca07f223acd [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1f308f12738d8cc40bb23bf0c8114b37c164bb49" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1fcf5b47312f795751f87ec1a585fbc8d561e08b65da2f9e84d67af02019bf0a [INFO] running `Command { std: "docker" "start" "-a" "1fcf5b47312f795751f87ec1a585fbc8d561e08b65da2f9e84d67af02019bf0a", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.152 [INFO] [stderr] Compiling proc-macro2 v1.0.78 [INFO] [stderr] Compiling anyhow v1.0.79 [INFO] [stderr] Compiling semver v1.0.21 [INFO] [stderr] Compiling unicode-ident v1.0.12 [INFO] [stderr] Compiling regex-lite v0.1.5 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling thiserror v1.0.56 [INFO] [stderr] Compiling inkwell v0.3.0 [INFO] [stderr] Checking once_cell v1.19.0 [INFO] [stderr] Checking either v1.9.0 [INFO] [stderr] Compiling quote v1.0.35 [INFO] [stderr] Compiling syn v2.0.48 [INFO] [stderr] Compiling cc v1.0.83 [INFO] [stderr] Compiling llvm-sys v170.0.1 [INFO] [stderr] Compiling thiserror-impl v1.0.56 [INFO] [stderr] Compiling inkwell_internals v0.9.0 [INFO] [stderr] Checking scheme-llvm v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::collections::HashMap` [INFO] [stdout] --> src/main.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::collections::HashMap; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `FunctionType`, `module::Module`, and `values::FloatMathValue` [INFO] [stdout] --> src/main.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | module::Module, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] 8 | types::{BasicType, FunctionType}, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] 9 | values::FloatMathValue, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::str::Bytes` [INFO] [stdout] --> src/parser.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::str::Bytes; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type `f_func` should have an upper camel case name [INFO] [stdout] --> src/main.rs:48:6 [INFO] [stdout] | [INFO] [stdout] 48 | type f_func = unsafe extern "C" fn() -> f64; [INFO] [stdout] | ^^^^^^ help: convert the identifier to upper camel case: `FFunc` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_camel_case_types)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::collections::HashMap` [INFO] [stdout] --> src/main.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::collections::HashMap; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `FunctionType`, `module::Module`, and `values::FloatMathValue` [INFO] [stdout] --> src/main.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | module::Module, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] 8 | types::{BasicType, FunctionType}, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] 9 | values::FloatMathValue, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::str::Bytes` [INFO] [stdout] --> src/parser.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::str::Bytes; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type `f_func` should have an upper camel case name [INFO] [stdout] --> src/main.rs:48:6 [INFO] [stdout] | [INFO] [stdout] 48 | type f_func = unsafe extern "C" fn() -> f64; [INFO] [stdout] | ^^^^^^ help: convert the identifier to upper camel case: `FFunc` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_camel_case_types)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `BasicType` [INFO] [stdout] --> src/main.rs:8:13 [INFO] [stdout] | [INFO] [stdout] 8 | types::{BasicType, FunctionType}, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/parser.rs:63:9 [INFO] [stdout] | [INFO] [stdout] 63 | let mut split_index = input [INFO] [stdout] | ----^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `identifier` [INFO] [stdout] --> src/main.rs:26:34 [INFO] [stdout] | [INFO] [stdout] 26 | Expression::Define { identifier, value } => todo!(), [INFO] [stdout] | ^^^^^^^^^^ help: try ignoring the field: `identifier: _` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `value` [INFO] [stdout] --> src/main.rs:26:46 [INFO] [stdout] | [INFO] [stdout] 26 | Expression::Define { identifier, value } => todo!(), [INFO] [stdout] | ^^^^^ help: try ignoring the field: `value: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `pairs` [INFO] [stdout] --> src/main.rs:27:31 [INFO] [stdout] | [INFO] [stdout] 27 | Expression::Let { pairs, body } => todo!(), [INFO] [stdout] | ^^^^^ help: try ignoring the field: `pairs: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `body` [INFO] [stdout] --> src/main.rs:27:38 [INFO] [stdout] | [INFO] [stdout] 27 | Expression::Let { pairs, body } => todo!(), [INFO] [stdout] | ^^^^ help: try ignoring the field: `body: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `arguments` [INFO] [stdout] --> src/main.rs:28:34 [INFO] [stdout] | [INFO] [stdout] 28 | Expression::Lambda { arguments, body } => todo!(), [INFO] [stdout] | ^^^^^^^^^ help: try ignoring the field: `arguments: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `body` [INFO] [stdout] --> src/main.rs:28:45 [INFO] [stdout] | [INFO] [stdout] 28 | Expression::Lambda { arguments, body } => todo!(), [INFO] [stdout] | ^^^^ help: try ignoring the field: `body: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `BasicType` [INFO] [stdout] --> src/main.rs:8:13 [INFO] [stdout] | [INFO] [stdout] 8 | types::{BasicType, FunctionType}, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Nil` is never constructed [INFO] [stdout] --> src/parser.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 4 | pub enum Atom<'a> { [INFO] [stdout] | ---- variant in this enum [INFO] [stdout] ... [INFO] [stdout] 7 | Nil, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Atom` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Define`, `Let`, `Lambda`, `Begin`, and `List` are never constructed [INFO] [stdout] --> src/parser.rs:36:5 [INFO] [stdout] | [INFO] [stdout] 35 | pub enum Expression<'a> { [INFO] [stdout] | ---------- variants in this enum [INFO] [stdout] 36 | Define { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 40 | Let { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 44 | Lambda { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 48 | Begin(Vec>), [INFO] [stdout] | ^^^^^ [INFO] [stdout] 49 | List(Vec>), [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Expression` 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: function `parse_identifier` is never used [INFO] [stdout] --> src/parser.rs:53:4 [INFO] [stdout] | [INFO] [stdout] 53 | fn parse_identifier<'a>(input: &'a str) -> Option<(&'a str, &'a str)> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `split_to_first_whitespace` is never used [INFO] [stdout] --> src/parser.rs:62:4 [INFO] [stdout] | [INFO] [stdout] 62 | fn split_to_first_whitespace<'a>(input: &'a str) -> Option<(&'a str, &'a str)> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `parse_expression` is never used [INFO] [stdout] --> src/parser.rs:74:4 [INFO] [stdout] | [INFO] [stdout] 74 | fn parse_expression<'a>(input: &'a str) -> Option<(Expression<'a>, &'a str)> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `parse_atom` is never used [INFO] [stdout] --> src/parser.rs:78:4 [INFO] [stdout] | [INFO] [stdout] 78 | fn parse_atom<'a>(input: &'a str) -> Option<(Atom<'a>, &'a str)> { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `parse_define` is never used [INFO] [stdout] --> src/parser.rs:88:4 [INFO] [stdout] | [INFO] [stdout] 88 | fn parse_define<'a>(input: &'a str) -> Option<(Expression<'a>, &'a str)> { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `parse_binding_pair` is never used [INFO] [stdout] --> src/parser.rs:103:4 [INFO] [stdout] | [INFO] [stdout] 103 | fn parse_binding_pair<'a>(input: &'a str) -> Option<((&'a str, Expression<'a>), &'a str)> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `parse_let` is never used [INFO] [stdout] --> src/parser.rs:109:4 [INFO] [stdout] | [INFO] [stdout] 109 | fn parse_let<'a>(input: &'a str) -> Option<(Expression<'a>, &'a str)> { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `parse_lambda` is never used [INFO] [stdout] --> src/parser.rs:137:4 [INFO] [stdout] | [INFO] [stdout] 137 | fn parse_lambda<'a>(input: &'a str) -> Option<(Expression<'a>, &'a str)> { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `parse_begin` is never used [INFO] [stdout] --> src/parser.rs:165:4 [INFO] [stdout] | [INFO] [stdout] 165 | fn parse_begin<'a>(input: &'a str) -> Option<(Expression<'a>, &'a str)> { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `parse_list` is never used [INFO] [stdout] --> src/parser.rs:178:8 [INFO] [stdout] | [INFO] [stdout] 178 | pub fn parse_list<'a>(mut i: &'a str) -> Option<(Vec>, &'a str)> { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `bracketed` is never used [INFO] [stdout] --> src/parser.rs:192:4 [INFO] [stdout] | [INFO] [stdout] 192 | fn bracketed<'a, A, F>(f: F, input: &'a str) -> Option<(A, &'a str)> [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `parse_bracketed` is never used [INFO] [stdout] --> src/parser.rs:202:4 [INFO] [stdout] | [INFO] [stdout] 202 | fn parse_bracketed<'a>(input: &'a str) -> Option<(Expression<'a>, &'a str)> { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/parser.rs:63:9 [INFO] [stdout] | [INFO] [stdout] 63 | let mut split_index = input [INFO] [stdout] | ----^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:39:21 [INFO] [stdout] | [INFO] [stdout] 39 | self.builder.build_return(Some(&f)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 39 | let _ = self.builder.build_return(Some(&f)); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `identifier` [INFO] [stdout] --> src/main.rs:26:34 [INFO] [stdout] | [INFO] [stdout] 26 | Expression::Define { identifier, value } => todo!(), [INFO] [stdout] | ^^^^^^^^^^ help: try ignoring the field: `identifier: _` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `value` [INFO] [stdout] --> src/main.rs:26:46 [INFO] [stdout] | [INFO] [stdout] 26 | Expression::Define { identifier, value } => todo!(), [INFO] [stdout] | ^^^^^ help: try ignoring the field: `value: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `pairs` [INFO] [stdout] --> src/main.rs:27:31 [INFO] [stdout] | [INFO] [stdout] 27 | Expression::Let { pairs, body } => todo!(), [INFO] [stdout] | ^^^^^ help: try ignoring the field: `pairs: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `body` [INFO] [stdout] --> src/main.rs:27:38 [INFO] [stdout] | [INFO] [stdout] 27 | Expression::Let { pairs, body } => todo!(), [INFO] [stdout] | ^^^^ help: try ignoring the field: `body: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `arguments` [INFO] [stdout] --> src/main.rs:28:34 [INFO] [stdout] | [INFO] [stdout] 28 | Expression::Lambda { arguments, body } => todo!(), [INFO] [stdout] | ^^^^^^^^^ help: try ignoring the field: `arguments: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `body` [INFO] [stdout] --> src/main.rs:28:45 [INFO] [stdout] | [INFO] [stdout] 28 | Expression::Lambda { arguments, body } => todo!(), [INFO] [stdout] | ^^^^ help: try ignoring the field: `body: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Nil` is never constructed [INFO] [stdout] --> src/parser.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 4 | pub enum Atom<'a> { [INFO] [stdout] | ---- variant in this enum [INFO] [stdout] ... [INFO] [stdout] 7 | Nil, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Atom` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:39:21 [INFO] [stdout] | [INFO] [stdout] 39 | self.builder.build_return(Some(&f)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 39 | let _ = self.builder.build_return(Some(&f)); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.75s [INFO] running `Command { std: "docker" "inspect" "1fcf5b47312f795751f87ec1a585fbc8d561e08b65da2f9e84d67af02019bf0a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1fcf5b47312f795751f87ec1a585fbc8d561e08b65da2f9e84d67af02019bf0a", kill_on_drop: false }` [INFO] [stdout] 1fcf5b47312f795751f87ec1a585fbc8d561e08b65da2f9e84d67af02019bf0a