[INFO] cloning repository https://github.com/ohogb/yuio
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ohogb/yuio" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fohogb%2Fyuio", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fohogb%2Fyuio'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d9d5198d862c68cecd9bbd05ba451a2c88ea4749
[INFO] checking ohogb/yuio against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fohogb%2Fyuio" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ohogb/yuio on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ohogb/yuio
[INFO] finished tweaking git repo https://github.com/ohogb/yuio
[INFO] tweaked toml for git repo https://github.com/ohogb/yuio written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ohogb/yuio 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 94e109771fcca0ff5259a8e4a0b327a93bc76507ea9ec8b680a4f9280e13ce98
[INFO] running `Command { std: "docker" "start" "-a" "94e109771fcca0ff5259a8e4a0b327a93bc76507ea9ec8b680a4f9280e13ce98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "94e109771fcca0ff5259a8e4a0b327a93bc76507ea9ec8b680a4f9280e13ce98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94e109771fcca0ff5259a8e4a0b327a93bc76507ea9ec8b680a4f9280e13ce98", kill_on_drop: false }`
[INFO] [stdout] 94e109771fcca0ff5259a8e4a0b327a93bc76507ea9ec8b680a4f9280e13ce98
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c0a998f5fe9da1540fb02b5ce77fa506364ec183f647ff8a6c4e17087510555a
[INFO] running `Command { std: "docker" "start" "-a" "c0a998f5fe9da1540fb02b5ce77fa506364ec183f647ff8a6c4e17087510555a", kill_on_drop: false }`
[INFO] [stderr]     Checking yuio v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ast`
[INFO] [stdout]  --> src/ast/node.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{ast, hlir, Result};
[INFO] [stdout]   |             ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ast`
[INFO] [stdout]  --> src/ast/node.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{ast, hlir, Result};
[INFO] [stdout]   |             ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/ast/integer.rs:16:29
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn define_functions(&self, ctx: &mut hlir::Context) {}
[INFO] [stdout]    |                                ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/ast/integer.rs:18:21
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn generate(&self, ctx: &mut hlir::Context) -> Result<hlir::Node> {
[INFO] [stdout]    |                        ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/ast/parameter_definition.rs:21:29
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn define_functions(&self, ctx: &mut hlir::Context) {}
[INFO] [stdout]    |                                ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/ast/integer.rs:16:29
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn define_functions(&self, ctx: &mut hlir::Context) {}
[INFO] [stdout]    |                                ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/ast/integer.rs:18:21
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn generate(&self, ctx: &mut hlir::Context) -> Result<hlir::Node> {
[INFO] [stdout]    |                        ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/ast/parameter_definition.rs:21:29
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn define_functions(&self, ctx: &mut hlir::Context) {}
[INFO] [stdout]    |                                ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/ast/variable_lookup.rs:19:29
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn define_functions(&self, ctx: &mut hlir::Context) {}
[INFO] [stdout]    |                                ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/ast/variable_lookup.rs:19:29
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn define_functions(&self, ctx: &mut hlir::Context) {}
[INFO] [stdout]    |                                ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `location` is never read
[INFO] [stdout]  --> src/ast/binary_operation.rs:5:2
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct BinaryOperation {
[INFO] [stdout]   |            --------------- field in this struct
[INFO] [stdout] 5 |     location: Location,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `BinaryOperation` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `location` is never read
[INFO] [stdout]  --> src/ast/call.rs:5:2
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Call {
[INFO] [stdout]   |            ---- field in this struct
[INFO] [stdout] 5 |     location: Location,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Call` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `location` and `return_type` are never read
[INFO] [stdout]  --> src/ast/function_definition.rs:5:2
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct FunctionDefinition {
[INFO] [stdout]   |            ------------------ fields in this struct
[INFO] [stdout] 5 |     location: Location,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 8 |     return_type: usize,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `FunctionDefinition` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `location` is never read
[INFO] [stdout]  --> src/ast/if.rs:5:2
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct If {
[INFO] [stdout]   |            -- field in this struct
[INFO] [stdout] 5 |     location: Location,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `If` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `location` is never read
[INFO] [stdout]  --> src/ast/integer.rs:5:2
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Integer {
[INFO] [stdout]   |            ------- field in this struct
[INFO] [stdout] 5 |     location: Location,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Integer` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `location` and `typ` are never read
[INFO] [stdout]  --> src/ast/parameter_definition.rs:5:2
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct ParameterDefinition {
[INFO] [stdout]   |            ------------------- fields in this struct
[INFO] [stdout] 5 |     location: Location,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 6 |     name: String,
[INFO] [stdout] 7 |     typ: String,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `ParameterDefinition` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `location` is never read
[INFO] [stdout]  --> src/ast/return.rs:5:2
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Return {
[INFO] [stdout]   |            ------ field in this struct
[INFO] [stdout] 5 |     location: Location,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Return` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `location` is never read
[INFO] [stdout]  --> src/ast/scope.rs:5:2
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Scope {
[INFO] [stdout]   |            ----- field in this struct
[INFO] [stdout] 5 |     location: Location,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Scope` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `location` is never read
[INFO] [stdout]  --> src/ast/variable_definition.rs:5:2
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct VariableDefinition {
[INFO] [stdout]   |            ------------------ field in this struct
[INFO] [stdout] 5 |     location: Location,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `VariableDefinition` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `location` is never read
[INFO] [stdout]  --> src/ast/variable_lookup.rs:5:2
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct VariableLookup {
[INFO] [stdout]   |            -------------- field in this struct
[INFO] [stdout] 5 |     location: Location,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `VariableLookup` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `munmap` is never used
[INFO] [stdout]   --> src/x86_64/executable.rs:32:4
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn munmap(ptr: *mut u8, size: usize) {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `size` is never read
[INFO] [stdout]   --> src/x86_64/executable.rs:40:2
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub struct Executable {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 39 |     ptr: *mut u8,
[INFO] [stdout] 40 |     size: usize,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `location` is never read
[INFO] [stdout]  --> src/ast/binary_operation.rs:5:2
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct BinaryOperation {
[INFO] [stdout]   |            --------------- field in this struct
[INFO] [stdout] 5 |     location: Location,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `BinaryOperation` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `location` is never read
[INFO] [stdout]  --> src/ast/call.rs:5:2
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Call {
[INFO] [stdout]   |            ---- field in this struct
[INFO] [stdout] 5 |     location: Location,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Call` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `location` and `return_type` are never read
[INFO] [stdout]  --> src/ast/function_definition.rs:5:2
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct FunctionDefinition {
[INFO] [stdout]   |            ------------------ fields in this struct
[INFO] [stdout] 5 |     location: Location,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 8 |     return_type: usize,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `FunctionDefinition` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `location` is never read
[INFO] [stdout]  --> src/ast/if.rs:5:2
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct If {
[INFO] [stdout]   |            -- field in this struct
[INFO] [stdout] 5 |     location: Location,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `If` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `location` is never read
[INFO] [stdout]  --> src/ast/integer.rs:5:2
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Integer {
[INFO] [stdout]   |            ------- field in this struct
[INFO] [stdout] 5 |     location: Location,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Integer` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `location` and `typ` are never read
[INFO] [stdout]  --> src/ast/parameter_definition.rs:5:2
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct ParameterDefinition {
[INFO] [stdout]   |            ------------------- fields in this struct
[INFO] [stdout] 5 |     location: Location,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 6 |     name: String,
[INFO] [stdout] 7 |     typ: String,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `ParameterDefinition` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `location` is never read
[INFO] [stdout]  --> src/ast/return.rs:5:2
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Return {
[INFO] [stdout]   |            ------ field in this struct
[INFO] [stdout] 5 |     location: Location,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Return` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `location` is never read
[INFO] [stdout]  --> src/ast/scope.rs:5:2
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Scope {
[INFO] [stdout]   |            ----- field in this struct
[INFO] [stdout] 5 |     location: Location,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Scope` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `location` is never read
[INFO] [stdout]  --> src/ast/variable_definition.rs:5:2
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct VariableDefinition {
[INFO] [stdout]   |            ------------------ field in this struct
[INFO] [stdout] 5 |     location: Location,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `VariableDefinition` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `location` is never read
[INFO] [stdout]  --> src/ast/variable_lookup.rs:5:2
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct VariableLookup {
[INFO] [stdout]   |            -------------- field in this struct
[INFO] [stdout] 5 |     location: Location,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `VariableLookup` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `munmap` is never used
[INFO] [stdout]   --> src/x86_64/executable.rs:32:4
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn munmap(ptr: *mut u8, size: usize) {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `size` is never read
[INFO] [stdout]   --> src/x86_64/executable.rs:40:2
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub struct Executable {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 39 |     ptr: *mut u8,
[INFO] [stdout] 40 |     size: usize,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.16s
[INFO] running `Command { std: "docker" "inspect" "c0a998f5fe9da1540fb02b5ce77fa506364ec183f647ff8a6c4e17087510555a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0a998f5fe9da1540fb02b5ce77fa506364ec183f647ff8a6c4e17087510555a", kill_on_drop: false }`
[INFO] [stdout] c0a998f5fe9da1540fb02b5ce77fa506364ec183f647ff8a6c4e17087510555a
[INFO] checking ohogb/yuio against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fohogb%2Fyuio" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ohogb/yuio on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ohogb/yuio
[INFO] finished tweaking git repo https://github.com/ohogb/yuio
[INFO] tweaked toml for git repo https://github.com/ohogb/yuio written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/ohogb/yuio 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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 23d86744009087eabb6d8e53e2b2357392ed266ff286d2458c6fb3e31e046a5a
[INFO] running `Command { std: "docker" "start" "-a" "23d86744009087eabb6d8e53e2b2357392ed266ff286d2458c6fb3e31e046a5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "23d86744009087eabb6d8e53e2b2357392ed266ff286d2458c6fb3e31e046a5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23d86744009087eabb6d8e53e2b2357392ed266ff286d2458c6fb3e31e046a5a", kill_on_drop: false }`
[INFO] [stdout] 23d86744009087eabb6d8e53e2b2357392ed266ff286d2458c6fb3e31e046a5a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 755e216b83bd3fd487ef04f2a023f353e08957026eb9a2dfe11282628a9f1eb6
[INFO] running `Command { std: "docker" "start" "-a" "755e216b83bd3fd487ef04f2a023f353e08957026eb9a2dfe11282628a9f1eb6", kill_on_drop: false }`
[INFO] [stderr]     Checking yuio v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ast`
[INFO] [stdout]  --> src/ast/node.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{ast, hlir, Result};
[INFO] [stdout]   |             ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ast`
[INFO] [stdout]  --> src/ast/node.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{ast, hlir, Result};
[INFO] [stdout]   |             ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> src/ast/binary_operation.rs:38:4
[INFO] [stdout]    |
[INFO] [stdout] 38 |             Err(format!(
[INFO] [stdout]    |             ^^^ cannot infer type of the type parameter `T` declared on the enum `Result`
[INFO] [stdout]    |
[INFO] [stdout] help: consider specifying the generic arguments
[INFO] [stdout]    |
[INFO] [stdout] 38 |             Err::<T, String>(format!(
[INFO] [stdout]    |                +++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> src/ast/binary_operation.rs:38:4
[INFO] [stdout]    |
[INFO] [stdout] 38 |             Err(format!(
[INFO] [stdout]    |             ^^^ cannot infer type of the type parameter `T` declared on the enum `Result`
[INFO] [stdout]    |
[INFO] [stdout] help: consider specifying the generic arguments
[INFO] [stdout]    |
[INFO] [stdout] 38 |             Err::<T, String>(format!(
[INFO] [stdout]    |                +++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> src/parser.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 |             Err(format!(
[INFO] [stdout]    |             ^^^ cannot infer type of the type parameter `T` declared on the enum `Result`
[INFO] [stdout]    |
[INFO] [stdout] help: consider specifying the generic arguments
[INFO] [stdout]    |
[INFO] [stdout] 23 |             Err::<T, String>(format!(
[INFO] [stdout]    |                +++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> src/parser.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 |             Err(format!(
[INFO] [stdout]    |             ^^^ cannot infer type of the type parameter `T` declared on the enum `Result`
[INFO] [stdout]    |
[INFO] [stdout] help: consider specifying the generic arguments
[INFO] [stdout]    |
[INFO] [stdout] 23 |             Err::<T, String>(format!(
[INFO] [stdout]    |                +++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/parser.rs:350:4
[INFO] [stdout]     |
[INFO] [stdout] 350 |             Err(format!("expected {open:?}, got {:?}", first.0))?;
[INFO] [stdout]     |             ^^^ cannot infer type of the type parameter `T` declared on the enum `Result`
[INFO] [stdout]     |
[INFO] [stdout] help: consider specifying the generic arguments
[INFO] [stdout]     |
[INFO] [stdout] 350 |             Err::<T, String>(format!("expected {open:?}, got {:?}", first.0))?;
[INFO] [stdout]     |                +++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/parser.rs:350:4
[INFO] [stdout]     |
[INFO] [stdout] 350 |             Err(format!("expected {open:?}, got {:?}", first.0))?;
[INFO] [stdout]     |             ^^^ cannot infer type of the type parameter `T` declared on the enum `Result`
[INFO] [stdout]     |
[INFO] [stdout] help: consider specifying the generic arguments
[INFO] [stdout]     |
[INFO] [stdout] 350 |             Err::<T, String>(format!("expected {open:?}, got {:?}", first.0))?;
[INFO] [stdout]     |                +++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/ast/integer.rs:16:29
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn define_functions(&self, ctx: &mut hlir::Context) {}
[INFO] [stdout]    |                                ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/ast/integer.rs:18:21
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn generate(&self, ctx: &mut hlir::Context) -> Result<hlir::Node> {
[INFO] [stdout]    |                        ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/ast/parameter_definition.rs:21:29
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn define_functions(&self, ctx: &mut hlir::Context) {}
[INFO] [stdout]    |                                ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/ast/integer.rs:16:29
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn define_functions(&self, ctx: &mut hlir::Context) {}
[INFO] [stdout]    |                                ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/ast/integer.rs:18:21
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn generate(&self, ctx: &mut hlir::Context) -> Result<hlir::Node> {
[INFO] [stdout]    |                        ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/ast/parameter_definition.rs:21:29
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn define_functions(&self, ctx: &mut hlir::Context) {}
[INFO] [stdout]    |                                ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/ast/variable_lookup.rs:19:29
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn define_functions(&self, ctx: &mut hlir::Context) {}
[INFO] [stdout]    |                                ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/ast/variable_lookup.rs:19:29
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn define_functions(&self, ctx: &mut hlir::Context) {}
[INFO] [stdout]    |                                ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `yuio` (bin "yuio") due to 4 previous errors; 5 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `yuio` (bin "yuio" test) due to 4 previous errors; 5 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "755e216b83bd3fd487ef04f2a023f353e08957026eb9a2dfe11282628a9f1eb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "755e216b83bd3fd487ef04f2a023f353e08957026eb9a2dfe11282628a9f1eb6", kill_on_drop: false }`
[INFO] [stdout] 755e216b83bd3fd487ef04f2a023f353e08957026eb9a2dfe11282628a9f1eb6