[INFO] cloning repository https://github.com/keatinge/rust-to-mips-compiler [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/keatinge/rust-to-mips-compiler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkeatinge%2Frust-to-mips-compiler", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkeatinge%2Frust-to-mips-compiler'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 42e1328fb446ba0d7ed35d3b48b1355ba57d55e6 [INFO] checking keatinge/rust-to-mips-compiler against master#d8810e3e2dab96778d20dd6d746ff95465515509 for pr-137033 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkeatinge%2Frust-to-mips-compiler" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/keatinge/rust-to-mips-compiler on toolchain d8810e3e2dab96778d20dd6d746ff95465515509 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d8810e3e2dab96778d20dd6d746ff95465515509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/keatinge/rust-to-mips-compiler [INFO] finished tweaking git repo https://github.com/keatinge/rust-to-mips-compiler [INFO] tweaked toml for git repo https://github.com/keatinge/rust-to-mips-compiler written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/keatinge/rust-to-mips-compiler 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" "+d8810e3e2dab96778d20dd6d746ff95465515509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024 [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+d8810e3e2dab96778d20dd6d746ff95465515509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 4dee3cb2bdf23cb86ddf0a2be5ddf8c4d6d5628f4812c1f026dfa74c8cacbaca [INFO] running `Command { std: "docker" "start" "-a" "4dee3cb2bdf23cb86ddf0a2be5ddf8c4d6d5628f4812c1f026dfa74c8cacbaca", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "4dee3cb2bdf23cb86ddf0a2be5ddf8c4d6d5628f4812c1f026dfa74c8cacbaca", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4dee3cb2bdf23cb86ddf0a2be5ddf8c4d6d5628f4812c1f026dfa74c8cacbaca", kill_on_drop: false }` [INFO] [stdout] 4dee3cb2bdf23cb86ddf0a2be5ddf8c4d6d5628f4812c1f026dfa74c8cacbaca [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+d8810e3e2dab96778d20dd6d746ff95465515509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0b72a76332c92a50237da4559de148c2056f1ae0b294d8c819b68a3db34fae14 [INFO] running `Command { std: "docker" "start" "-a" "0b72a76332c92a50237da4559de148c2056f1ae0b294d8c819b68a3db34fae14", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024 [INFO] [stderr] Checking mipscompiler v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> src/lexer.rs:101:9 [INFO] [stdout] | [INFO] [stdout] 101 | (self.chars.get(self.index+1)) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 101 - (self.chars.get(self.index+1)) [INFO] [stdout] 101 + self.chars.get(self.index+1) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `i32` should have an upper camel case name [INFO] [stdout] --> src/parser.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | i32 [INFO] [stdout] | ^^^ help: convert the identifier to upper camel case (notice the capitalization): `I32` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_camel_case_types)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `I32_lit` should have an upper camel case name [INFO] [stdout] --> src/parser.rs:24:5 [INFO] [stdout] | [INFO] [stdout] 24 | I32_lit(i32) [INFO] [stdout] | ^^^^^^^ help: convert the identifier to upper camel case: `I32Lit` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::rc::Rc` [INFO] [stdout] --> src/mips.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::rc::Rc; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> src/lexer.rs:101:9 [INFO] [stdout] | [INFO] [stdout] 101 | (self.chars.get(self.index+1)) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 101 - (self.chars.get(self.index+1)) [INFO] [stdout] 101 + self.chars.get(self.index+1) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `i32` should have an upper camel case name [INFO] [stdout] --> src/parser.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | i32 [INFO] [stdout] | ^^^ help: convert the identifier to upper camel case (notice the capitalization): `I32` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_camel_case_types)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `I32_lit` should have an upper camel case name [INFO] [stdout] --> src/parser.rs:24:5 [INFO] [stdout] | [INFO] [stdout] 24 | I32_lit(i32) [INFO] [stdout] | ^^^^^^^ help: convert the identifier to upper camel case: `I32Lit` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::rc::Rc` [INFO] [stdout] --> src/mips.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::rc::Rc; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/parser.rs:179:34 [INFO] [stdout] | [INFO] [stdout] 179 | &lexer::Token::Ident(s) if next == Some(&lexer::Token::OpenParen) => { self.parse_fn_call() } [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/parser.rs:180:34 [INFO] [stdout] | [INFO] [stdout] 180 | &lexer::Token::Ident(s) => { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/parser.rs:290:38 [INFO] [stdout] | [INFO] [stdout] 290 | if let (&lexer::Token::Ident(s), Some(&lexer::Token::Equal)) = (self.current_tok(), self.peek()) { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/parser.rs:179:34 [INFO] [stdout] | [INFO] [stdout] 179 | &lexer::Token::Ident(s) if next == Some(&lexer::Token::OpenParen) => { self.parse_fn_call() } [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/parser.rs:180:34 [INFO] [stdout] | [INFO] [stdout] 180 | &lexer::Token::Ident(s) => { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/parser.rs:290:38 [INFO] [stdout] | [INFO] [stdout] 290 | if let (&lexer::Token::Ident(s), Some(&lexer::Token::Equal)) = (self.current_tok(), self.peek()) { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `is_identifier` is never used [INFO] [stdout] --> src/lexer.rs:180:8 [INFO] [stdout] | [INFO] [stdout] 180 | pub fn is_identifier(t: &Token) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `v_type` is never read [INFO] [stdout] --> src/parser.rs:32:9 [INFO] [stdout] | [INFO] [stdout] 30 | pub struct DeclData<'a> { [INFO] [stdout] | -------- field in this struct [INFO] [stdout] 31 | pub name: &'a str, [INFO] [stdout] 32 | pub v_type: Type, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `DeclData` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `expect` and `force_eat_return_i32_lit` are never used [INFO] [stdout] --> src/parser.rs:132:8 [INFO] [stdout] | [INFO] [stdout] 99 | impl<'b, 'a> Parser<'b, 'a> { [INFO] [stdout] | --------------------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 132 | fn expect(&self, t: &lexer::Token) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 157 | fn force_eat_return_i32_lit(&mut self) -> i32 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `BeqLit` is never constructed [INFO] [stdout] --> src/mips.rs:61:5 [INFO] [stdout] | [INFO] [stdout] 54 | enum Instruction<'a> { [INFO] [stdout] | ----------- variant in this enum [INFO] [stdout] ... [INFO] [stdout] 61 | BeqLit(Register, i32, &'a str), [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Instruction` 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 `name` is never read [INFO] [stdout] --> src/mips.rs:172:5 [INFO] [stdout] | [INFO] [stdout] 171 | struct MipsFunction<'a> { [INFO] [stdout] | ------------ field in this struct [INFO] [stdout] 172 | name: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `MipsFunction` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:29:5 [INFO] [stdout] | [INFO] [stdout] 29 | output.write_all(mips_str.as_bytes()); [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] 29 | let _ = output.write_all(mips_str.as_bytes()); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `DeclData` should have a snake case name [INFO] [stdout] --> src/mips.rs:403:53 [INFO] [stdout] | [INFO] [stdout] 403 | &parser::Statement::Declaration(ref DeclData) => { [INFO] [stdout] | ^^^^^^^^ help: convert the identifier to snake case: `decl_data` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `is_identifier` is never used [INFO] [stdout] --> src/lexer.rs:180:8 [INFO] [stdout] | [INFO] [stdout] 180 | pub fn is_identifier(t: &Token) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `v_type` is never read [INFO] [stdout] --> src/parser.rs:32:9 [INFO] [stdout] | [INFO] [stdout] 30 | pub struct DeclData<'a> { [INFO] [stdout] | -------- field in this struct [INFO] [stdout] 31 | pub name: &'a str, [INFO] [stdout] 32 | pub v_type: Type, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `DeclData` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `expect` and `force_eat_return_i32_lit` are never used [INFO] [stdout] --> src/parser.rs:132:8 [INFO] [stdout] | [INFO] [stdout] 99 | impl<'b, 'a> Parser<'b, 'a> { [INFO] [stdout] | --------------------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 132 | fn expect(&self, t: &lexer::Token) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 157 | fn force_eat_return_i32_lit(&mut self) -> i32 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `BeqLit` is never constructed [INFO] [stdout] --> src/mips.rs:61:5 [INFO] [stdout] | [INFO] [stdout] 54 | enum Instruction<'a> { [INFO] [stdout] | ----------- variant in this enum [INFO] [stdout] ... [INFO] [stdout] 61 | BeqLit(Register, i32, &'a str), [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Instruction` 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 `name` is never read [INFO] [stdout] --> src/mips.rs:172:5 [INFO] [stdout] | [INFO] [stdout] 171 | struct MipsFunction<'a> { [INFO] [stdout] | ------------ field in this struct [INFO] [stdout] 172 | name: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `MipsFunction` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:29:5 [INFO] [stdout] | [INFO] [stdout] 29 | output.write_all(mips_str.as_bytes()); [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] 29 | let _ = output.write_all(mips_str.as_bytes()); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `DeclData` should have a snake case name [INFO] [stdout] --> src/mips.rs:403:53 [INFO] [stdout] | [INFO] [stdout] 403 | &parser::Statement::Declaration(ref DeclData) => { [INFO] [stdout] | ^^^^^^^^ help: convert the identifier to snake case: `decl_data` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.40s [INFO] running `Command { std: "docker" "inspect" "0b72a76332c92a50237da4559de148c2056f1ae0b294d8c819b68a3db34fae14", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0b72a76332c92a50237da4559de148c2056f1ae0b294d8c819b68a3db34fae14", kill_on_drop: false }` [INFO] [stdout] 0b72a76332c92a50237da4559de148c2056f1ae0b294d8c819b68a3db34fae14