[INFO] cloning repository https://github.com/KevDev13/lox [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/KevDev13/lox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKevDev13%2Flox", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKevDev13%2Flox'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 65d258c15da32f2a48bdc71c210e1577fba7b0c8 [INFO] checking KevDev13/lox against try#654bc80249a2b2ba8bd16392b5829d87ed96c92d for pr-136458 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKevDev13%2Flox" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/KevDev13/lox on toolchain 654bc80249a2b2ba8bd16392b5829d87ed96c92d [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+654bc80249a2b2ba8bd16392b5829d87ed96c92d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/KevDev13/lox [INFO] finished tweaking git repo https://github.com/KevDev13/lox [INFO] tweaked toml for git repo https://github.com/KevDev13/lox written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/KevDev13/lox 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" "+654bc80249a2b2ba8bd16392b5829d87ed96c92d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+654bc80249a2b2ba8bd16392b5829d87ed96c92d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a30a71c23115e98f189d65b1b13300b5f00a0cd1e6521f9f62af317ab819929e [INFO] running `Command { std: "docker" "start" "-a" "a30a71c23115e98f189d65b1b13300b5f00a0cd1e6521f9f62af317ab819929e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a30a71c23115e98f189d65b1b13300b5f00a0cd1e6521f9f62af317ab819929e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a30a71c23115e98f189d65b1b13300b5f00a0cd1e6521f9f62af317ab819929e", kill_on_drop: false }` [INFO] [stdout] a30a71c23115e98f189d65b1b13300b5f00a0cd1e6521f9f62af317ab819929e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+654bc80249a2b2ba8bd16392b5829d87ed96c92d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] cea592336d0e2cb31a02cb520888138c7622cde45b92d5b995cc6ed0ba3b9cbb [INFO] running `Command { std: "docker" "start" "-a" "cea592336d0e2cb31a02cb520888138c7622cde45b92d5b995cc6ed0ba3b9cbb", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.95 [INFO] [stderr] Checking unicode-width v0.1.8 [INFO] [stderr] Checking vec_map v0.8.2 [INFO] [stderr] Checking ansi_term v0.9.0 [INFO] [stderr] Checking strsim v0.6.0 [INFO] [stderr] Checking textwrap v0.9.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking clap v2.27.1 [INFO] [stderr] Checking lox v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `expr::*` [INFO] [stdout] --> src/main.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 14 | use expr::*; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `expr::*` [INFO] [stdout] --> src/main.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 14 | use expr::*; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `literal` and `line` are never read [INFO] [stdout] --> src/token.rs:31:9 [INFO] [stdout] | [INFO] [stdout] 28 | pub struct Token { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 31 | pub literal: Option, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 32 | pub line: 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] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/token.rs:54:9 [INFO] [stdout] | [INFO] [stdout] 54 | Str(String), [INFO] [stdout] | --- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `Literal` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 54 | Str(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/token.rs:55:12 [INFO] [stdout] | [INFO] [stdout] 55 | Number(f64), [INFO] [stdout] | ------ ^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `Literal` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 55 | Number(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Boolean` is never constructed [INFO] [stdout] --> src/token.rs:56:5 [INFO] [stdout] | [INFO] [stdout] 53 | pub enum Literal { [INFO] [stdout] | ------- variant in this enum [INFO] [stdout] ... [INFO] [stdout] 56 | Boolean(bool), [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Literal` 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: multiple variants are never constructed [INFO] [stdout] --> src/expr.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 4 | pub enum Expr { [INFO] [stdout] | ---- variants in this enum [INFO] [stdout] 5 | Assign { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 9 | Binary { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 14 | Call { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 19 | Get { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 23 | Grouping { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 26 | Literal { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 29 | Logical { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 34 | Set { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 39 | Super { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 43 | This { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 46 | Unary { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 50 | Variable { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `accept` is never used [INFO] [stdout] --> src/expr.rs:71:8 [INFO] [stdout] | [INFO] [stdout] 70 | pub trait Accept { [INFO] [stdout] | ------ method in this trait [INFO] [stdout] 71 | fn accept(&self, v: &mut dyn Visitor) -> T; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> src/scanner.rs:210:32 [INFO] [stdout] | [INFO] [stdout] 210 | match KEYWORDS.get(text.clone()) { [INFO] [stdout] | ^^^^^^^^ help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed [INFO] [stdout] = note: `#[warn(noop_method_call)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `literal` and `line` are never read [INFO] [stdout] --> src/token.rs:31:9 [INFO] [stdout] | [INFO] [stdout] 28 | pub struct Token { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 31 | pub literal: Option, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 32 | pub line: 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] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/token.rs:54:9 [INFO] [stdout] | [INFO] [stdout] 54 | Str(String), [INFO] [stdout] | --- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `Literal` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 54 | Str(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/token.rs:55:12 [INFO] [stdout] | [INFO] [stdout] 55 | Number(f64), [INFO] [stdout] | ------ ^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `Literal` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 55 | Number(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Boolean` is never constructed [INFO] [stdout] --> src/token.rs:56:5 [INFO] [stdout] | [INFO] [stdout] 53 | pub enum Literal { [INFO] [stdout] | ------- variant in this enum [INFO] [stdout] ... [INFO] [stdout] 56 | Boolean(bool), [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Literal` 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: multiple variants are never constructed [INFO] [stdout] --> src/expr.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 4 | pub enum Expr { [INFO] [stdout] | ---- variants in this enum [INFO] [stdout] 5 | Assign { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 9 | Binary { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 14 | Call { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 19 | Get { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 23 | Grouping { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 26 | Literal { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 29 | Logical { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 34 | Set { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 39 | Super { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 43 | This { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 46 | Unary { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 50 | Variable { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `accept` is never used [INFO] [stdout] --> src/expr.rs:71:8 [INFO] [stdout] | [INFO] [stdout] 70 | pub trait Accept { [INFO] [stdout] | ------ method in this trait [INFO] [stdout] 71 | fn accept(&self, v: &mut dyn Visitor) -> T; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> src/scanner.rs:210:32 [INFO] [stdout] | [INFO] [stdout] 210 | match KEYWORDS.get(text.clone()) { [INFO] [stdout] | ^^^^^^^^ help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed [INFO] [stdout] = note: `#[warn(noop_method_call)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.44s [INFO] running `Command { std: "docker" "inspect" "cea592336d0e2cb31a02cb520888138c7622cde45b92d5b995cc6ed0ba3b9cbb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cea592336d0e2cb31a02cb520888138c7622cde45b92d5b995cc6ed0ba3b9cbb", kill_on_drop: false }` [INFO] [stdout] cea592336d0e2cb31a02cb520888138c7622cde45b92d5b995cc6ed0ba3b9cbb