[INFO] cloning repository https://github.com/ayoubachak/leetrust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ayoubachak/leetrust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fayoubachak%2Fleetrust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fayoubachak%2Fleetrust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] a52d484d326eea4d3106132cfc3fa887412b7127 [INFO] building ayoubachak/leetrust against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fayoubachak%2Fleetrust" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/ayoubachak/leetrust on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/ayoubachak/leetrust [INFO] finished tweaking git repo https://github.com/ayoubachak/leetrust [INFO] tweaked toml for git repo https://github.com/ayoubachak/leetrust written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/ayoubachak/leetrust 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ff4f44ee7040d8be3b77b5ae85b624984ada333e69edef7054892ea3de0b58ae [INFO] running `Command { std: "docker" "start" "-a" "ff4f44ee7040d8be3b77b5ae85b624984ada333e69edef7054892ea3de0b58ae", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ff4f44ee7040d8be3b77b5ae85b624984ada333e69edef7054892ea3de0b58ae", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ff4f44ee7040d8be3b77b5ae85b624984ada333e69edef7054892ea3de0b58ae", kill_on_drop: false }` [INFO] [stdout] ff4f44ee7040d8be3b77b5ae85b624984ada333e69edef7054892ea3de0b58ae [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3badf72229764463030f0869a8a30d8210e8dd1c4edc5534b0b527ace9430c78 [INFO] running `Command { std: "docker" "start" "-a" "3badf72229764463030f0869a8a30d8210e8dd1c4edc5534b0b527ace9430c78", kill_on_drop: false }` [INFO] [stderr] Compiling leetrust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/lib.rs:333:13 [INFO] [stdout] | [INFO] [stdout] 333 | _ => write!(f, "Unknown opcode"), [INFO] [stdout] | ^ no value can reach this [INFO] [stdout] | [INFO] [stdout] note: multiple earlier patterns match some of the same values [INFO] [stdout] --> src/lib.rs:333:13 [INFO] [stdout] | [INFO] [stdout] 273 | OpCode::Return => write!(f, "OP_RETURN"), [INFO] [stdout] | -------------- matches some of the same values [INFO] [stdout] 274 | OpCode::Constant => write!(f, "OP_CONSTANT"), [INFO] [stdout] | ---------------- matches some of the same values [INFO] [stdout] 275 | OpCode::ConstantLong => write!(f, "OP_CONSTANT_LONG"), [INFO] [stdout] | -------------------- matches some of the same values [INFO] [stdout] 276 | OpCode::Nil => write!(f, "OP_NIL"), [INFO] [stdout] | ----------- matches some of the same values [INFO] [stdout] ... [INFO] [stdout] 333 | _ => write!(f, "Unknown opcode"), [INFO] [stdout] | ^ ...and 56 other patterns collectively make this unreachable [INFO] [stdout] = note: `#[warn(unreachable_patterns)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::debug::disassemble_chunk` [INFO] [stdout] --> src/compiler.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | use crate::debug::disassemble_chunk; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::rc::Rc` [INFO] [stdout] --> src/main.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | use std::rc::Rc; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/vm.rs:138:25 [INFO] [stdout] | [INFO] [stdout] 137 | result => self.push(result.unwrap()), [INFO] [stdout] | ------ matches any value [INFO] [stdout] 138 | _ => return InterpretResult::RuntimeError, [INFO] [stdout] | ^ no value can reach this [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_patterns)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/vm.rs:145:25 [INFO] [stdout] | [INFO] [stdout] 144 | result => self.push(result.unwrap()), [INFO] [stdout] | ------ matches any value [INFO] [stdout] 145 | _ => return InterpretResult::RuntimeError, [INFO] [stdout] | ^ no value can reach this [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/vm.rs:153:25 [INFO] [stdout] | [INFO] [stdout] 152 | result => self.push(result.unwrap()), [INFO] [stdout] | ------ matches any value [INFO] [stdout] 153 | _ => return InterpretResult::RuntimeError, [INFO] [stdout] | ^ no value can reach this [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/vm.rs:161:25 [INFO] [stdout] | [INFO] [stdout] 160 | result => self.push(result.unwrap()), [INFO] [stdout] | ------ matches any value [INFO] [stdout] 161 | _ => return InterpretResult::RuntimeError, [INFO] [stdout] | ^ no value can reach this [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/vm.rs:169:25 [INFO] [stdout] | [INFO] [stdout] 168 | result => self.push(result.unwrap()), [INFO] [stdout] | ------ matches any value [INFO] [stdout] 169 | _ => return InterpretResult::RuntimeError, [INFO] [stdout] | ^ no value can reach this [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/vm.rs:177:25 [INFO] [stdout] | [INFO] [stdout] 176 | result => self.push(result.unwrap()), [INFO] [stdout] | ------ matches any value [INFO] [stdout] 177 | _ => return InterpretResult::RuntimeError, [INFO] [stdout] | ^ no value can reach this [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `value` [INFO] [stdout] --> src/vm.rs:205:25 [INFO] [stdout] | [INFO] [stdout] 205 | let value = match self.pop() { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_value` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: relative drop order changing in Rust 2024 [INFO] [stdout] --> src/compiler.rs:458:37 [INFO] [stdout] | [INFO] [stdout] 458 | while let Some(next_rule) = self.get_rule(self.current_token.type_) { // Clone each time to avoid borrowing issues [INFO] [stdout] | --------- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | | [INFO] [stdout] | | this value will be stored in a temporary; let us call it `#1` [INFO] [stdout] | | up until Edition 2021 `#1` is dropped last but will be dropped earlier in Edition 2024 [INFO] [stdout] | `next_rule` calls a custom destructor [INFO] [stdout] | `next_rule` will be dropped later as of Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 461 | if let Some(infix) = next_rule.infix { [INFO] [stdout] | ----- [INFO] [stdout] | | [INFO] [stdout] | `infix` calls a custom destructor [INFO] [stdout] | `infix` will be dropped later as of Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 470 | } [INFO] [stdout] | - now the temporary value is dropped here, before the local variables in the block or statement [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#1` may invoke a custom destructor because it contains a trait object [INFO] [stdout] = note: `next_rule` may invoke a custom destructor because it contains a trait object [INFO] [stdout] = note: `infix` may invoke a custom destructor because it contains a trait object [INFO] [stdout] = note: most of the time, changing drop order is harmless; inspect the `impl Drop`s for side effects like releasing locks or sending messages [INFO] [stdout] = note: requested on the command line with `-D tail-expr-drop-order` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `debug_stack` and `debug_instruction` are never used [INFO] [stdout] --> src/vm.rs:238:8 [INFO] [stdout] | [INFO] [stdout] 237 | impl VM { [INFO] [stdout] | ------- methods in this implementation [INFO] [stdout] 238 | fn debug_stack(&self) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 246 | fn debug_instruction(&self) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `concatenate` is never used [INFO] [stdout] --> src/vm.rs:253:8 [INFO] [stdout] | [INFO] [stdout] 252 | impl VM { [INFO] [stdout] | ------- method in this implementation [INFO] [stdout] 253 | fn concatenate(&mut self) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `ScanError` and `UnexpectedCharacter` are never constructed [INFO] [stdout] --> src/compiler.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 13 | pub enum CompileError { [INFO] [stdout] | ------------ variants in this enum [INFO] [stdout] 14 | ScanError { message: String, line: usize }, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 15 | UnexpectedCharacter, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `CompileError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias `ParseFn` is never used [INFO] [stdout] --> src/compiler.rs:62:6 [INFO] [stdout] | [INFO] [stdout] 62 | type ParseFn = Rc; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `print_rules` is never used [INFO] [stdout] --> src/compiler.rs:476:4 [INFO] [stdout] | [INFO] [stdout] 476 | fn print_rules(rules : HashMap) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `InterpolationStart` and `InterpolationEnd` are never constructed [INFO] [stdout] --> src/scanner.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 3 | pub enum TokenType { [INFO] [stdout] | --------- variants in this enum [INFO] [stdout] ... [INFO] [stdout] 13 | InterpolationStart, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] 14 | InterpolationEnd, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `TokenType` 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: field `length` is never read [INFO] [stdout] --> src/scanner.rs:26:9 [INFO] [stdout] | [INFO] [stdout] 23 | pub struct Token<'a> { [INFO] [stdout] | ----- field in this struct [INFO] [stdout] ... [INFO] [stdout] 26 | pub length: usize, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Token` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated functions `is_alpha` and `is_digit` are never used [INFO] [stdout] --> src/scanner.rs:79:8 [INFO] [stdout] | [INFO] [stdout] 48 | impl<'a> Scanner<'a> { [INFO] [stdout] | -------------------- associated functions in this implementation [INFO] [stdout] ... [INFO] [stdout] 79 | fn is_alpha(c: char) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 83 | fn is_digit(c: char) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `leetrust` (bin "leetrust") due to 1 previous error; 17 warnings emitted [INFO] running `Command { std: "docker" "inspect" "3badf72229764463030f0869a8a30d8210e8dd1c4edc5534b0b527ace9430c78", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3badf72229764463030f0869a8a30d8210e8dd1c4edc5534b0b527ace9430c78", kill_on_drop: false }` [INFO] [stdout] 3badf72229764463030f0869a8a30d8210e8dd1c4edc5534b0b527ace9430c78