[INFO] cloning repository https://github.com/MadScientist2854/jovis
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MadScientist2854/jovis" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMadScientist2854%2Fjovis", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMadScientist2854%2Fjovis'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f4419ac1d3839215f155db4106121a6aebeceea8
[INFO] checking MadScientist2854/jovis against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMadScientist2854%2Fjovis" "/workspace/builds/worker-65/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-65/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MadScientist2854/jovis on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/MadScientist2854/jovis
[INFO] finished tweaking git repo https://github.com/MadScientist2854/jovis
[INFO] tweaked toml for git repo https://github.com/MadScientist2854/jovis written to /workspace/builds/worker-65/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7a34a03e8b62defc5ef7cce9315cd133683abe997f256e8733a23e20123c5622
[INFO] running `Command { std: "docker" "start" "-a" "7a34a03e8b62defc5ef7cce9315cd133683abe997f256e8733a23e20123c5622", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7a34a03e8b62defc5ef7cce9315cd133683abe997f256e8733a23e20123c5622", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a34a03e8b62defc5ef7cce9315cd133683abe997f256e8733a23e20123c5622", kill_on_drop: false }`
[INFO] [stdout] 7a34a03e8b62defc5ef7cce9315cd133683abe997f256e8733a23e20123c5622
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d7aa51a446190f36497d09de8ac65ed0ce569e661aa47b8ceab1d89b75cad7bf
[INFO] running `Command { std: "docker" "start" "-a" "d7aa51a446190f36497d09de8ac65ed0ce569e661aa47b8ceab1d89b75cad7bf", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]    Compiling jovis v0.1.0 (/tmp/fixit)
[INFO] [stderr]     Checking cty v0.2.1
[INFO] [stderr]    Migrating build.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating src/main.rs from 2018 edition to 2021
[INFO] [stderr]        Fixed src/expr/compiler/type_checker.rs (2 fixes)
[INFO] [stdout] warning: struct is never constructed: `CodeGenerator`
[INFO] [stdout]   --> src/expr/compiler/code_generator.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | struct CodeGenerator {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/expr/compiler/code_generator.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn new(lang: AsmLanguage) -> Self { Self { asm: vec![], lang } }
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/expr/compiler/code_generator.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn new(lang: AsmLanguage) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `gen_nasm`
[INFO] [stdout]   --> src/expr/compiler/code_generator.rs:46:12
[INFO] [stdout]    |
[INFO] [stdout] 46 |     pub fn gen_nasm(&mut self, ast: Expr, env: &Environment, reg_opt: Option<NASMRegBase>) -> bool { // TODO
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `AsmTarget`
[INFO] [stdout]  --> src/expr/compiler/asm_type.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub enum AsmTarget {
[INFO] [stdout]   |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NASM`
[INFO] [stdout]  --> src/expr/compiler/asm_type.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     NASM
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `A`
[INFO] [stdout]   --> src/expr/compiler/asm_type.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     A,
[INFO] [stdout]    |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `B`
[INFO] [stdout]   --> src/expr/compiler/asm_type.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     B,
[INFO] [stdout]    |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `C`
[INFO] [stdout]   --> src/expr/compiler/asm_type.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     C,
[INFO] [stdout]    |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `D`
[INFO] [stdout]   --> src/expr/compiler/asm_type.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     D
[INFO] [stdout]    |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `NASMRegSize`
[INFO] [stdout]   --> src/expr/compiler/asm_type.rs:16:10
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub enum NASMRegSize {
[INFO] [stdout]    |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `CodeGenerator`
[INFO] [stdout]   --> src/expr/compiler/code_generator.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | struct CodeGenerator {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_str`
[INFO] [stdout]   --> src/expr/compiler/asm_type.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn to_str(self, size: NASMRegSize) -> String {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `j_link`
[INFO] [stdout]  --> src/linker.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     pub fn j_link(entry_file: *const cty::c_char) -> cty::c_int;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/expr/compiler/code_generator.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn new(lang: AsmLanguage) -> Self { Self { asm: vec![], lang } }
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/expr/compiler/code_generator.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn new(lang: AsmLanguage) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `gen_nasm`
[INFO] [stdout]   --> src/expr/compiler/code_generator.rs:46:12
[INFO] [stdout]    |
[INFO] [stdout] 46 |     pub fn gen_nasm(&mut self, ast: Expr, env: &Environment, reg_opt: Option<NASMRegBase>) -> bool { // TODO
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `AsmTarget`
[INFO] [stdout]  --> src/expr/compiler/asm_type.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub enum AsmTarget {
[INFO] [stdout]   |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NASM`
[INFO] [stdout]  --> src/expr/compiler/asm_type.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     NASM
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `A`
[INFO] [stdout]   --> src/expr/compiler/asm_type.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     A,
[INFO] [stdout]    |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `B`
[INFO] [stdout]   --> src/expr/compiler/asm_type.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     B,
[INFO] [stdout]    |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `C`
[INFO] [stdout]   --> src/expr/compiler/asm_type.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     C,
[INFO] [stdout]    |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `D`
[INFO] [stdout]   --> src/expr/compiler/asm_type.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     D
[INFO] [stdout]    |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `NASMRegSize`
[INFO] [stdout]   --> src/expr/compiler/asm_type.rs:16:10
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub enum NASMRegSize {
[INFO] [stdout]    |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_str`
[INFO] [stdout]   --> src/expr/compiler/asm_type.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn to_str(self, size: NASMRegSize) -> String {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `j_link`
[INFO] [stdout]  --> src/linker.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     pub fn j_link(entry_file: *const cty::c_char) -> cty::c_int;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: getting the inner pointer of a temporary `CString`
[INFO] [stdout]   --> src/expr/compiler/code_generator.rs:14:48
[INFO] [stdout]    |
[INFO] [stdout] 14 |         j_link(CString::new(out_file).unwrap().as_ptr());
[INFO] [stdout]    |                ------------------------------- ^^^^^^ this pointer will be invalid
[INFO] [stdout]    |                |
[INFO] [stdout]    |                this `CString` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(temporary_cstring_as_ptr)]` on by default
[INFO] [stdout]    = note: pointers do not have a lifetime; when calling `as_ptr` the `CString` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned
[INFO] [stdout]    = help: for more information, see https://doc.rust-lang.org/reference/destructors.html
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: getting the inner pointer of a temporary `CString`
[INFO] [stdout]   --> src/expr/compiler/code_generator.rs:14:48
[INFO] [stdout]    |
[INFO] [stdout] 14 |         j_link(CString::new(out_file).unwrap().as_ptr());
[INFO] [stdout]    |                ------------------------------- ^^^^^^ this pointer will be invalid
[INFO] [stdout]    |                |
[INFO] [stdout]    |                this `CString` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(temporary_cstring_as_ptr)]` on by default
[INFO] [stdout]    = note: pointers do not have a lifetime; when calling `as_ptr` the `CString` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned
[INFO] [stdout]    = help: for more information, see https://doc.rust-lang.org/reference/destructors.html
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.71s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]    Compiling jovis v0.1.0 (/tmp/fixit)
[INFO] [stdout] warning: struct is never constructed: `CodeGenerator`
[INFO] [stdout]   --> src/expr/compiler/code_generator.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | struct CodeGenerator {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/expr/compiler/code_generator.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn new(lang: AsmLanguage) -> Self { Self { asm: vec![], lang } }
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/expr/compiler/code_generator.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn new(lang: AsmLanguage) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `gen_nasm`
[INFO] [stdout]   --> src/expr/compiler/code_generator.rs:46:12
[INFO] [stdout]    |
[INFO] [stdout] 46 |     pub fn gen_nasm(&mut self, ast: Expr, env: &Environment, reg_opt: Option<NASMRegBase>) -> bool { // TODO
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `AsmTarget`
[INFO] [stdout]  --> src/expr/compiler/asm_type.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub enum AsmTarget {
[INFO] [stdout]   |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NASM`
[INFO] [stdout]  --> src/expr/compiler/asm_type.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     NASM
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `A`
[INFO] [stdout]   --> src/expr/compiler/asm_type.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     A,
[INFO] [stdout]    |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `B`
[INFO] [stdout]   --> src/expr/compiler/asm_type.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     B,
[INFO] [stdout]    |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `C`
[INFO] [stdout]   --> src/expr/compiler/asm_type.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     C,
[INFO] [stdout]    |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `D`
[INFO] [stdout]   --> src/expr/compiler/asm_type.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     D
[INFO] [stdout]    |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `NASMRegSize`
[INFO] [stdout]   --> src/expr/compiler/asm_type.rs:16:10
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub enum NASMRegSize {
[INFO] [stdout]    |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_str`
[INFO] [stdout]   --> src/expr/compiler/asm_type.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn to_str(self, size: NASMRegSize) -> String {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `j_link`
[INFO] [stdout]  --> src/linker.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     pub fn j_link(entry_file: *const cty::c_char) -> cty::c_int;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: getting the inner pointer of a temporary `CString`
[INFO] [stdout]   --> src/expr/compiler/code_generator.rs:14:48
[INFO] [stdout]    |
[INFO] [stdout] 14 |         j_link(CString::new(out_file).unwrap().as_ptr());
[INFO] [stdout]    |                ------------------------------- ^^^^^^ this pointer will be invalid
[INFO] [stdout]    |                |
[INFO] [stdout]    |                this `CString` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(temporary_cstring_as_ptr)]` on by default
[INFO] [stdout]    = note: pointers do not have a lifetime; when calling `as_ptr` the `CString` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned
[INFO] [stdout]    = help: for more information, see https://doc.rust-lang.org/reference/destructors.html
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `CodeGenerator`
[INFO] [stdout]   --> src/expr/compiler/code_generator.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | struct CodeGenerator {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/expr/compiler/code_generator.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn new(lang: AsmLanguage) -> Self { Self { asm: vec![], lang } }
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/expr/compiler/code_generator.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn new(lang: AsmLanguage) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `gen_nasm`
[INFO] [stdout]   --> src/expr/compiler/code_generator.rs:46:12
[INFO] [stdout]    |
[INFO] [stdout] 46 |     pub fn gen_nasm(&mut self, ast: Expr, env: &Environment, reg_opt: Option<NASMRegBase>) -> bool { // TODO
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `AsmTarget`
[INFO] [stdout]  --> src/expr/compiler/asm_type.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub enum AsmTarget {
[INFO] [stdout]   |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NASM`
[INFO] [stdout]  --> src/expr/compiler/asm_type.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     NASM
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `A`
[INFO] [stdout]   --> src/expr/compiler/asm_type.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     A,
[INFO] [stdout]    |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `B`
[INFO] [stdout]   --> src/expr/compiler/asm_type.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     B,
[INFO] [stdout]    |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `C`
[INFO] [stdout]   --> src/expr/compiler/asm_type.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     C,
[INFO] [stdout]    |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `D`
[INFO] [stdout]   --> src/expr/compiler/asm_type.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     D
[INFO] [stdout]    |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `NASMRegSize`
[INFO] [stdout]   --> src/expr/compiler/asm_type.rs:16:10
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub enum NASMRegSize {
[INFO] [stdout]    |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_str`
[INFO] [stdout]   --> src/expr/compiler/asm_type.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn to_str(self, size: NASMRegSize) -> String {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `j_link`
[INFO] [stdout]  --> src/linker.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     pub fn j_link(entry_file: *const cty::c_char) -> cty::c_int;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: getting the inner pointer of a temporary `CString`
[INFO] [stdout]   --> src/expr/compiler/code_generator.rs:14:48
[INFO] [stdout]    |
[INFO] [stdout] 14 |         j_link(CString::new(out_file).unwrap().as_ptr());
[INFO] [stdout]    |                ------------------------------- ^^^^^^ this pointer will be invalid
[INFO] [stdout]    |                |
[INFO] [stdout]    |                this `CString` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(temporary_cstring_as_ptr)]` on by default
[INFO] [stdout]    = note: pointers do not have a lifetime; when calling `as_ptr` the `CString` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned
[INFO] [stdout]    = help: for more information, see https://doc.rust-lang.org/reference/destructors.html
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.99s
[INFO] running `Command { std: "docker" "inspect" "d7aa51a446190f36497d09de8ac65ed0ce569e661aa47b8ceab1d89b75cad7bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7aa51a446190f36497d09de8ac65ed0ce569e661aa47b8ceab1d89b75cad7bf", kill_on_drop: false }`
[INFO] [stdout] d7aa51a446190f36497d09de8ac65ed0ce569e661aa47b8ceab1d89b75cad7bf