[INFO] cloning repository https://github.com/blueish/rlox [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/blueish/rlox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblueish%2Frlox", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblueish%2Frlox'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] b4e2d5e1dcbce74d6fb0d24bebe7c39674cec91f [INFO] checking blueish/rlox/b4e2d5e1dcbce74d6fb0d24bebe7c39674cec91f against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblueish%2Frlox" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/blueish/rlox on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/blueish/rlox [INFO] finished tweaking git repo https://github.com/blueish/rlox [INFO] tweaked toml for git repo https://github.com/blueish/rlox written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/blueish/rlox 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 197246ab9dff9ec8f4a1b4a4f5fcd8ac2880ce82698a8f06b3648634236863e2 [INFO] running `Command { std: "docker" "start" "-a" "197246ab9dff9ec8f4a1b4a4f5fcd8ac2880ce82698a8f06b3648634236863e2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "197246ab9dff9ec8f4a1b4a4f5fcd8ac2880ce82698a8f06b3648634236863e2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "197246ab9dff9ec8f4a1b4a4f5fcd8ac2880ce82698a8f06b3648634236863e2", kill_on_drop: false }` [INFO] [stdout] 197246ab9dff9ec8f4a1b4a4f5fcd8ac2880ce82698a8f06b3648634236863e2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1abe7aff536550e5ce337357973290d0a3102802618031b58335adca28dfdfa7 [INFO] running `Command { std: "docker" "start" "-a" "1abe7aff536550e5ce337357973290d0a3102802618031b58335adca28dfdfa7", kill_on_drop: false }` [INFO] [stderr] Compiling memchr v2.2.1 [INFO] [stderr] Compiling libc v0.2.65 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Checking regex-syntax v0.6.12 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Checking quick-error v1.2.2 [INFO] [stderr] Checking termcolor v1.0.5 [INFO] [stderr] Checking thread_local v0.3.6 [INFO] [stderr] Checking humantime v1.3.0 [INFO] [stderr] Checking aho-corasick v0.7.6 [INFO] [stderr] Checking atty v0.2.13 [INFO] [stderr] Checking regex v1.3.1 [INFO] [stderr] Checking env_logger v0.7.1 [INFO] [stderr] Checking interpreter v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::cmp` [INFO] [stdout] --> src/callable.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::cmp; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/value.rs:12:21 [INFO] [stdout] | [INFO] [stdout] 12 | ClosureV(Rc>), [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 12 | ClosureV(Rc>), [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/ast/mod.rs:16:33 [INFO] [stdout] | [INFO] [stdout] 16 | fn accept(&self, v: &mut Visitor) -> T; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 16 | fn accept(&self, v: &mut dyn Visitor) -> T; [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/callable.rs:13:21 [INFO] [stdout] | [INFO] [stdout] 13 | impl fmt::Debug for Callable { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 13 | impl fmt::Debug for dyn Callable { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/callable.rs:19:20 [INFO] [stdout] | [INFO] [stdout] 19 | impl PartialEq for Callable { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 19 | impl PartialEq for dyn Callable { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/ast/expr.rs:18:33 [INFO] [stdout] | [INFO] [stdout] 18 | fn accept(&self, v: &mut Visitor) -> T { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 18 | fn accept(&self, v: &mut dyn Visitor) -> T { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `StringLit` [INFO] [stdout] --> src/parser.rs:490:49 [INFO] [stdout] | [INFO] [stdout] 490 | use crate::ast::literals::Literal::{Number, StringLit}; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::cmp` [INFO] [stdout] --> src/callable.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::cmp; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/value.rs:12:21 [INFO] [stdout] | [INFO] [stdout] 12 | ClosureV(Rc>), [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 12 | ClosureV(Rc>), [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/ast/mod.rs:16:33 [INFO] [stdout] | [INFO] [stdout] 16 | fn accept(&self, v: &mut Visitor) -> T; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 16 | fn accept(&self, v: &mut dyn Visitor) -> T; [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/callable.rs:13:21 [INFO] [stdout] | [INFO] [stdout] 13 | impl fmt::Debug for Callable { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 13 | impl fmt::Debug for dyn Callable { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/callable.rs:19:20 [INFO] [stdout] | [INFO] [stdout] 19 | impl PartialEq for Callable { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 19 | impl PartialEq for dyn Callable { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/ast/expr.rs:18:33 [INFO] [stdout] | [INFO] [stdout] 18 | fn accept(&self, v: &mut Visitor) -> T { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 18 | fn accept(&self, v: &mut dyn Visitor) -> T { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `accept` is never used [INFO] [stdout] --> src/ast/mod.rs:16:8 [INFO] [stdout] | [INFO] [stdout] 15 | pub trait Node { [INFO] [stdout] | ---- method in this trait [INFO] [stdout] 16 | fn accept(&self, v: &mut Visitor) -> T; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `lexeme` is never read [INFO] [stdout] --> src/parser.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 13 | pub struct ParseError { [INFO] [stdout] | ---------- field in this struct [INFO] [stdout] 14 | line: usize, [INFO] [stdout] 15 | lexeme: String, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `ParseError` 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 `msg` is never read [INFO] [stdout] --> src/interp/interpreter.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 13 | pub struct InterpErr { [INFO] [stdout] | --------- field in this struct [INFO] [stdout] 14 | msg: String, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `InterpErr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `ClosureV` is never constructed [INFO] [stdout] --> src/value.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 6 | pub enum Value { [INFO] [stdout] | ----- variant in this enum [INFO] [stdout] ... [INFO] [stdout] 12 | ClosureV(Rc>), [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Value` 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: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/interp/interpreter.rs:266:25 [INFO] [stdout] | [INFO] [stdout] 266 | std::mem::replace(&mut self.environment, env); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 266 | let _ = std::mem::replace(&mut self.environment, env); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 11 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `accept` is never used [INFO] [stdout] --> src/ast/mod.rs:16:8 [INFO] [stdout] | [INFO] [stdout] 15 | pub trait Node { [INFO] [stdout] | ---- method in this trait [INFO] [stdout] 16 | fn accept(&self, v: &mut Visitor) -> T; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `lexeme` is never read [INFO] [stdout] --> src/parser.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 13 | pub struct ParseError { [INFO] [stdout] | ---------- field in this struct [INFO] [stdout] 14 | line: usize, [INFO] [stdout] 15 | lexeme: String, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `ParseError` 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 `init` is never used [INFO] [stdout] --> src/parser.rs:492:8 [INFO] [stdout] | [INFO] [stdout] 492 | fn init() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `msg` is never read [INFO] [stdout] --> src/interp/interpreter.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 13 | pub struct InterpErr { [INFO] [stdout] | --------- field in this struct [INFO] [stdout] 14 | msg: String, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `InterpErr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `ClosureV` is never constructed [INFO] [stdout] --> src/value.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 6 | pub enum Value { [INFO] [stdout] | ----- variant in this enum [INFO] [stdout] ... [INFO] [stdout] 12 | ClosureV(Rc>), [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Value` 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: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/interp/interpreter.rs:266:25 [INFO] [stdout] | [INFO] [stdout] 266 | std::mem::replace(&mut self.environment, env); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 266 | let _ = std::mem::replace(&mut self.environment, env); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 13 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.86s [INFO] running `Command { std: "docker" "inspect" "1abe7aff536550e5ce337357973290d0a3102802618031b58335adca28dfdfa7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1abe7aff536550e5ce337357973290d0a3102802618031b58335adca28dfdfa7", kill_on_drop: false }` [INFO] [stdout] 1abe7aff536550e5ce337357973290d0a3102802618031b58335adca28dfdfa7