[INFO] cloning repository https://github.com/mh-mobile/rust_parser_example [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mh-mobile/rust_parser_example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmh-mobile%2Frust_parser_example", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmh-mobile%2Frust_parser_example'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] dc4ccb13729ecfe7f1ff79813b791b9c2ad1ec5f [INFO] building mh-mobile/rust_parser_example 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%2Fmh-mobile%2Frust_parser_example" "/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/mh-mobile/rust_parser_example 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/mh-mobile/rust_parser_example [INFO] finished tweaking git repo https://github.com/mh-mobile/rust_parser_example [INFO] tweaked toml for git repo https://github.com/mh-mobile/rust_parser_example written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/mh-mobile/rust_parser_example 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-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 1a91dfcd7ec1568c1f6dac69e08814ccbfc9eeeda1e63f5f2852d3e0745ed232 [INFO] running `Command { std: "docker" "start" "-a" "1a91dfcd7ec1568c1f6dac69e08814ccbfc9eeeda1e63f5f2852d3e0745ed232", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1a91dfcd7ec1568c1f6dac69e08814ccbfc9eeeda1e63f5f2852d3e0745ed232", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1a91dfcd7ec1568c1f6dac69e08814ccbfc9eeeda1e63f5f2852d3e0745ed232", kill_on_drop: false }` [INFO] [stdout] 1a91dfcd7ec1568c1f6dac69e08814ccbfc9eeeda1e63f5f2852d3e0745ed232 [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 -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] 908acc338d5f818743dae8ec5ca3d05364e32e8c7c44aa8f78614050f888ab98 [INFO] running `Command { std: "docker" "start" "-a" "908acc338d5f818743dae8ec5ca3d05364e32e8c7c44aa8f78614050f888ab98", kill_on_drop: false }` [INFO] [stderr] Compiling rust_parser_example v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::os::unix::prelude::OsStrExt` [INFO] [stdout] --> src/main.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::os::unix::prelude::OsStrExt; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:633:29 [INFO] [stdout] | [INFO] [stdout] 633 | fn lex_number(input: &[u8], mut pos: usize) -> Result<(Token, usize), LexError> { [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `interp` [INFO] [stdout] --> src/main.rs:706:13 [INFO] [stdout] | [INFO] [stdout] 706 | let mut interp = Interpreter::new(); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_interp` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:706:9 [INFO] [stdout] | [INFO] [stdout] 706 | let mut interp = Interpreter::new(); [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `show_diagnostic` is never used [INFO] [stdout] --> src/main.rs:113:8 [INFO] [stdout] | [INFO] [stdout] 112 | impl InterpreterError { [INFO] [stdout] | --------------------- method in this implementation [INFO] [stdout] 113 | fn show_diagnostic(&self, input: &str) { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `eval`, `eval_uniop`, and `eval_binop` are never used [INFO] [stdout] --> src/main.rs:232:12 [INFO] [stdout] | [INFO] [stdout] 227 | impl Interpreter { [INFO] [stdout] | ---------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 232 | pub fn eval(&mut self, expr: &Ast) -> Result { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 253 | fn eval_uniop(&mut self, op: &UniOp, n: i64) -> i64 { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 261 | fn eval_binop(&mut self, op: &BinOp, l: i64, r: i64) -> Result { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `DivisionByZero` is never constructed [INFO] [stdout] --> src/main.rs:281:5 [INFO] [stdout] | [INFO] [stdout] 280 | enum InterpreterErrorKind { [INFO] [stdout] | -------------------- variant in this enum [INFO] [stdout] 281 | DivisionByZero, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `InterpreterErrorKind` 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: associated function `num` is never used [INFO] [stdout] --> src/main.rs:379:8 [INFO] [stdout] | [INFO] [stdout] 378 | impl Ast { [INFO] [stdout] | -------- associated function in this implementation [INFO] [stdout] 379 | fn num(n: u64, loc: Loc) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `UnexpectedToken` is never constructed [INFO] [stdout] --> src/main.rs:449:5 [INFO] [stdout] | [INFO] [stdout] 448 | enum ParseError { [INFO] [stdout] | ---------- variant in this enum [INFO] [stdout] 449 | UnexpectedToken(Token), [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `ParseError` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.56s [INFO] running `Command { std: "docker" "inspect" "908acc338d5f818743dae8ec5ca3d05364e32e8c7c44aa8f78614050f888ab98", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "908acc338d5f818743dae8ec5ca3d05364e32e8c7c44aa8f78614050f888ab98", kill_on_drop: false }` [INFO] [stdout] 908acc338d5f818743dae8ec5ca3d05364e32e8c7c44aa8f78614050f888ab98 [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 -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" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b976ea81638a7e526ae48e6941df11dc0b9b6e06053a88ceb1063df3587bf09f [INFO] running `Command { std: "docker" "start" "-a" "b976ea81638a7e526ae48e6941df11dc0b9b6e06053a88ceb1063df3587bf09f", kill_on_drop: false }` [INFO] [stderr] Compiling rust_parser_example v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::os::unix::prelude::OsStrExt` [INFO] [stdout] --> src/main.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::os::unix::prelude::OsStrExt; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:633:29 [INFO] [stdout] | [INFO] [stdout] 633 | fn lex_number(input: &[u8], mut pos: usize) -> Result<(Token, usize), LexError> { [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `interp` [INFO] [stdout] --> src/main.rs:706:13 [INFO] [stdout] | [INFO] [stdout] 706 | let mut interp = Interpreter::new(); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_interp` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:706:9 [INFO] [stdout] | [INFO] [stdout] 706 | let mut interp = Interpreter::new(); [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `show_diagnostic` is never used [INFO] [stdout] --> src/main.rs:113:8 [INFO] [stdout] | [INFO] [stdout] 112 | impl InterpreterError { [INFO] [stdout] | --------------------- method in this implementation [INFO] [stdout] 113 | fn show_diagnostic(&self, input: &str) { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `eval`, `eval_uniop`, and `eval_binop` are never used [INFO] [stdout] --> src/main.rs:232:12 [INFO] [stdout] | [INFO] [stdout] 227 | impl Interpreter { [INFO] [stdout] | ---------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 232 | pub fn eval(&mut self, expr: &Ast) -> Result { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 253 | fn eval_uniop(&mut self, op: &UniOp, n: i64) -> i64 { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 261 | fn eval_binop(&mut self, op: &BinOp, l: i64, r: i64) -> Result { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `DivisionByZero` is never constructed [INFO] [stdout] --> src/main.rs:281:5 [INFO] [stdout] | [INFO] [stdout] 280 | enum InterpreterErrorKind { [INFO] [stdout] | -------------------- variant in this enum [INFO] [stdout] 281 | DivisionByZero, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `InterpreterErrorKind` 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: variant `UnexpectedToken` is never constructed [INFO] [stdout] --> src/main.rs:449:5 [INFO] [stdout] | [INFO] [stdout] 448 | enum ParseError { [INFO] [stdout] | ---------- variant in this enum [INFO] [stdout] 449 | UnexpectedToken(Token), [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `ParseError` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.57s [INFO] running `Command { std: "docker" "inspect" "b976ea81638a7e526ae48e6941df11dc0b9b6e06053a88ceb1063df3587bf09f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b976ea81638a7e526ae48e6941df11dc0b9b6e06053a88ceb1063df3587bf09f", kill_on_drop: false }` [INFO] [stdout] b976ea81638a7e526ae48e6941df11dc0b9b6e06053a88ceb1063df3587bf09f