[INFO] cloning repository https://github.com/keatinge/rust-to-mips-compiler [INFO] running `"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"` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkeatinge%2Frust-to-mips-compiler'... [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 42e1328fb446ba0d7ed35d3b48b1355ba57d55e6 [INFO] checking keatinge/rust-to-mips-compiler against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkeatinge%2Frust-to-mips-compiler" "/workspace/builds/worker-7/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/keatinge/rust-to-mips-compiler on toolchain 45d050cde277b22a755847338f2acc2c7b834141 [INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"` [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/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 `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] f658ac05221bcf7d28942de2c372154a5b81329f8d2e79a9f05ca43688fbbdee [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `"docker" "start" "-a" "f658ac05221bcf7d28942de2c372154a5b81329f8d2e79a9f05ca43688fbbdee"` [INFO] [stderr] Checking mipscompiler v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unnecessary parentheses around block return value [INFO] [stderr] --> src/lexer.rs:101:9 [INFO] [stderr] | [INFO] [stderr] 101 | (self.chars.get(self.index+1)) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variant `i32` should have an upper camel case name [INFO] [stderr] --> src/parser.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | i32 [INFO] [stderr] | ^^^ help: convert the identifier to upper camel case (notice the capitalization): `I32` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_camel_case_types)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variant `I32_lit` should have an upper camel case name [INFO] [stderr] --> src/parser.rs:24:5 [INFO] [stderr] | [INFO] [stderr] 24 | I32_lit(i32) [INFO] [stderr] | ^^^^^^^ help: convert the identifier to upper camel case: `I32Lit` [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::rc::Rc` [INFO] [stderr] --> src/mips.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use std::rc::Rc; [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around block return value [INFO] [stderr] --> src/lexer.rs:101:9 [INFO] [stderr] | [INFO] [stderr] 101 | (self.chars.get(self.index+1)) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variant `i32` should have an upper camel case name [INFO] [stderr] --> src/parser.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | i32 [INFO] [stderr] | ^^^ help: convert the identifier to upper camel case (notice the capitalization): `I32` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_camel_case_types)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variant `I32_lit` should have an upper camel case name [INFO] [stderr] --> src/parser.rs:24:5 [INFO] [stderr] | [INFO] [stderr] 24 | I32_lit(i32) [INFO] [stderr] | ^^^^^^^ help: convert the identifier to upper camel case: `I32Lit` [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::rc::Rc` [INFO] [stderr] --> src/mips.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use std::rc::Rc; [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `s` [INFO] [stderr] --> src/parser.rs:179:34 [INFO] [stderr] | [INFO] [stderr] 179 | &lexer::Token::Ident(s) if next == Some(&lexer::Token::OpenParen) => { self.parse_fn_call() } [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `s` [INFO] [stderr] --> src/parser.rs:180:34 [INFO] [stderr] | [INFO] [stderr] 180 | &lexer::Token::Ident(s) => { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `s` [INFO] [stderr] --> src/parser.rs:290:38 [INFO] [stderr] | [INFO] [stderr] 290 | if let (&lexer::Token::Ident(s), Some(&lexer::Token::Equal)) = (self.current_tok(), self.peek()) { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `s` [INFO] [stderr] --> src/parser.rs:179:34 [INFO] [stderr] | [INFO] [stderr] 179 | &lexer::Token::Ident(s) if next == Some(&lexer::Token::OpenParen) => { self.parse_fn_call() } [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `s` [INFO] [stderr] --> src/parser.rs:180:34 [INFO] [stderr] | [INFO] [stderr] 180 | &lexer::Token::Ident(s) => { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `s` [INFO] [stderr] --> src/parser.rs:290:38 [INFO] [stderr] | [INFO] [stderr] 290 | if let (&lexer::Token::Ident(s), Some(&lexer::Token::Equal)) = (self.current_tok(), self.peek()) { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stderr] [INFO] [stderr] warning: function is never used: `is_identifier` [INFO] [stderr] --> src/lexer.rs:180:8 [INFO] [stderr] | [INFO] [stderr] 180 | pub fn is_identifier(t: &Token) -> bool { [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `expect` [INFO] [stderr] --> src/parser.rs:132:5 [INFO] [stderr] | [INFO] [stderr] 132 | fn expect(&self, t: &lexer::Token) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `force_eat_return_i32_lit` [INFO] [stderr] --> src/parser.rs:157:5 [INFO] [stderr] | [INFO] [stderr] 157 | fn force_eat_return_i32_lit(&mut self) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `BeqLit` [INFO] [stderr] --> src/mips.rs:61:5 [INFO] [stderr] | [INFO] [stderr] 61 | BeqLit(Register, i32, &'a str), [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:29:5 [INFO] [stderr] | [INFO] [stderr] 29 | output.write_all(mips_str.as_bytes()); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: variable `DeclData` should have a snake case name [INFO] [stderr] --> src/mips.rs:403:53 [INFO] [stderr] | [INFO] [stderr] 403 | &parser::Statement::Declaration(ref DeclData) => { [INFO] [stderr] | ^^^^^^^^ help: convert the identifier to snake case: `decl_data` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 13 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: function is never used: `is_identifier` [INFO] [stderr] --> src/lexer.rs:180:8 [INFO] [stderr] | [INFO] [stderr] 180 | pub fn is_identifier(t: &Token) -> bool { [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `expect` [INFO] [stderr] --> src/parser.rs:132:5 [INFO] [stderr] | [INFO] [stderr] 132 | fn expect(&self, t: &lexer::Token) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `force_eat_return_i32_lit` [INFO] [stderr] --> src/parser.rs:157:5 [INFO] [stderr] | [INFO] [stderr] 157 | fn force_eat_return_i32_lit(&mut self) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `BeqLit` [INFO] [stderr] --> src/mips.rs:61:5 [INFO] [stderr] | [INFO] [stderr] 61 | BeqLit(Register, i32, &'a str), [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:29:5 [INFO] [stderr] | [INFO] [stderr] 29 | output.write_all(mips_str.as_bytes()); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: variable `DeclData` should have a snake case name [INFO] [stderr] --> src/mips.rs:403:53 [INFO] [stderr] | [INFO] [stderr] 403 | &parser::Statement::Declaration(ref DeclData) => { [INFO] [stderr] | ^^^^^^^^ help: convert the identifier to snake case: `decl_data` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 13 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.98s [INFO] running `"docker" "inspect" "f658ac05221bcf7d28942de2c372154a5b81329f8d2e79a9f05ca43688fbbdee"` [INFO] running `"docker" "rm" "-f" "f658ac05221bcf7d28942de2c372154a5b81329f8d2e79a9f05ca43688fbbdee"` [INFO] [stdout] f658ac05221bcf7d28942de2c372154a5b81329f8d2e79a9f05ca43688fbbdee