[INFO] cloning repository https://github.com/xnoe/rust-calc [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xnoe/rust-calc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxnoe%2Frust-calc", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxnoe%2Frust-calc'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 056ddab0af375776307d7f858e71defa63891c25 [INFO] checking xnoe/rust-calc against master#9bfa31f632912180dc742809bcc51a97f2d7079d for pr-140151 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxnoe%2Frust-calc" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/xnoe/rust-calc on toolchain 9bfa31f632912180dc742809bcc51a97f2d7079d [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9bfa31f632912180dc742809bcc51a97f2d7079d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/xnoe/rust-calc [INFO] finished tweaking git repo https://github.com/xnoe/rust-calc [INFO] tweaked toml for git repo https://github.com/xnoe/rust-calc written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/xnoe/rust-calc 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" "+9bfa31f632912180dc742809bcc51a97f2d7079d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+9bfa31f632912180dc742809bcc51a97f2d7079d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] fa1746ee646a69ba6e43332c2023414297e3f56da457227284ad3b83c8083b5c [INFO] running `Command { std: "docker" "start" "-a" "fa1746ee646a69ba6e43332c2023414297e3f56da457227284ad3b83c8083b5c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "fa1746ee646a69ba6e43332c2023414297e3f56da457227284ad3b83c8083b5c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fa1746ee646a69ba6e43332c2023414297e3f56da457227284ad3b83c8083b5c", kill_on_drop: false }` [INFO] [stdout] fa1746ee646a69ba6e43332c2023414297e3f56da457227284ad3b83c8083b5c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+9bfa31f632912180dc742809bcc51a97f2d7079d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 23f6de2dc40cde2df8aa9ae2364f46559efda0e2124b5a089f09fedb92c556dc [INFO] running `Command { std: "docker" "start" "-a" "23f6de2dc40cde2df8aa9ae2364f46559efda0e2124b5a089f09fedb92c556dc", kill_on_drop: false }` [INFO] [stderr] Checking either v1.6.1 [INFO] [stderr] Checking itertools v0.10.3 [INFO] [stderr] Checking calculator v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `params` [INFO] [stdout] --> src/main.rs:665:38 [INFO] [stdout] | [INFO] [stdout] 665 | AST::FunctionDef(symbol, params, block) => { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_params` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `params` [INFO] [stdout] --> src/main.rs:665:38 [INFO] [stdout] | [INFO] [stdout] 665 | AST::FunctionDef(symbol, params, block) => { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_params` [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:687:21 [INFO] [stdout] | [INFO] [stdout] 687 | let mut rval = None; [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: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:687:21 [INFO] [stdout] | [INFO] [stdout] 687 | let mut rval = None; [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: variant `NotEquals` is never constructed [INFO] [stdout] --> src/main.rs:77:5 [INFO] [stdout] | [INFO] [stdout] 61 | enum Token { [INFO] [stdout] | ----- variant in this enum [INFO] [stdout] ... [INFO] [stdout] 77 | NotEquals, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `print_tokens` is never used [INFO] [stdout] --> src/main.rs:191:4 [INFO] [stdout] | [INFO] [stdout] 191 | fn print_tokens(tokens: &Vec) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0` and `1` are never read [INFO] [stdout] --> src/main.rs:225:9 [INFO] [stdout] | [INFO] [stdout] 225 | Dot(Box, Box), [INFO] [stdout] | --- ^^^^^^^^ ^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this variant [INFO] [stdout] | [INFO] [stdout] = note: `AST` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 225 - Dot(Box, Box), [INFO] [stdout] 225 + Dot((), ()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0` and `1` are never read [INFO] [stdout] --> src/main.rs:230:20 [INFO] [stdout] | [INFO] [stdout] 230 | WhileStatement(Box, Box), [INFO] [stdout] | -------------- ^^^^^^^^ ^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this variant [INFO] [stdout] | [INFO] [stdout] = note: `AST` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 230 - WhileStatement(Box, Box), [INFO] [stdout] 230 + WhileStatement((), ()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0`, `1`, `2`, and `3` are never read [INFO] [stdout] --> src/main.rs:231:18 [INFO] [stdout] | [INFO] [stdout] 231 | ForStatement(Box, Box, Box, Box), [INFO] [stdout] | ------------ ^^^^^^^^ ^^^^^^^^ ^^^^^^^^ ^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this variant [INFO] [stdout] | [INFO] [stdout] = note: `AST` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 231 - ForStatement(Box, Box, Box, Box), [INFO] [stdout] 231 + ForStatement((), (), (), ()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0` and `1` are never read [INFO] [stdout] --> src/main.rs:232:17 [INFO] [stdout] | [INFO] [stdout] 232 | IfStatement(Box, Box), [INFO] [stdout] | ----------- ^^^^^^^^ ^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this variant [INFO] [stdout] | [INFO] [stdout] = note: `AST` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 232 - IfStatement(Box, Box), [INFO] [stdout] 232 + IfStatement((), ()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `String` is never constructed [INFO] [stdout] --> src/main.rs:502:5 [INFO] [stdout] | [INFO] [stdout] 498 | enum Value { [INFO] [stdout] | ----- variant in this enum [INFO] [stdout] ... [INFO] [stdout] 502 | String(String) [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Value` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `NotEquals` is never constructed [INFO] [stdout] --> src/main.rs:77:5 [INFO] [stdout] | [INFO] [stdout] 61 | enum Token { [INFO] [stdout] | ----- variant in this enum [INFO] [stdout] ... [INFO] [stdout] 77 | NotEquals, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `print_tokens` is never used [INFO] [stdout] --> src/main.rs:191:4 [INFO] [stdout] | [INFO] [stdout] 191 | fn print_tokens(tokens: &Vec) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0` and `1` are never read [INFO] [stdout] --> src/main.rs:225:9 [INFO] [stdout] | [INFO] [stdout] 225 | Dot(Box, Box), [INFO] [stdout] | --- ^^^^^^^^ ^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this variant [INFO] [stdout] | [INFO] [stdout] = note: `AST` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 225 - Dot(Box, Box), [INFO] [stdout] 225 + Dot((), ()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0` and `1` are never read [INFO] [stdout] --> src/main.rs:230:20 [INFO] [stdout] | [INFO] [stdout] 230 | WhileStatement(Box, Box), [INFO] [stdout] | -------------- ^^^^^^^^ ^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this variant [INFO] [stdout] | [INFO] [stdout] = note: `AST` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 230 - WhileStatement(Box, Box), [INFO] [stdout] 230 + WhileStatement((), ()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0`, `1`, `2`, and `3` are never read [INFO] [stdout] --> src/main.rs:231:18 [INFO] [stdout] | [INFO] [stdout] 231 | ForStatement(Box, Box, Box, Box), [INFO] [stdout] | ------------ ^^^^^^^^ ^^^^^^^^ ^^^^^^^^ ^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this variant [INFO] [stdout] | [INFO] [stdout] = note: `AST` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 231 - ForStatement(Box, Box, Box, Box), [INFO] [stdout] 231 + ForStatement((), (), (), ()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0` and `1` are never read [INFO] [stdout] --> src/main.rs:232:17 [INFO] [stdout] | [INFO] [stdout] 232 | IfStatement(Box, Box), [INFO] [stdout] | ----------- ^^^^^^^^ ^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this variant [INFO] [stdout] | [INFO] [stdout] = note: `AST` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 232 - IfStatement(Box, Box), [INFO] [stdout] 232 + IfStatement((), ()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `String` is never constructed [INFO] [stdout] --> src/main.rs:502:5 [INFO] [stdout] | [INFO] [stdout] 498 | enum Value { [INFO] [stdout] | ----- variant in this enum [INFO] [stdout] ... [INFO] [stdout] 502 | String(String) [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Value` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `truthy` is never used [INFO] [stdout] --> src/main.rs:527:8 [INFO] [stdout] | [INFO] [stdout] 509 | impl<'a> Interpreter<'a> { [INFO] [stdout] | ------------------------ associated function in this implementation [INFO] [stdout] ... [INFO] [stdout] 527 | fn truthy(v : Value) -> bool { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `truthy` is never used [INFO] [stdout] --> src/main.rs:527:8 [INFO] [stdout] | [INFO] [stdout] 509 | impl<'a> Interpreter<'a> { [INFO] [stdout] | ------------------------ associated function in this implementation [INFO] [stdout] ... [INFO] [stdout] 527 | fn truthy(v : Value) -> bool { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:737:13 [INFO] [stdout] | [INFO] [stdout] 737 | std::io::stdout().flush(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 737 | let _ = std::io::stdout().flush(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:737:13 [INFO] [stdout] | [INFO] [stdout] 737 | std::io::stdout().flush(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 737 | let _ = std::io::stdout().flush(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.12s [INFO] running `Command { std: "docker" "inspect" "23f6de2dc40cde2df8aa9ae2364f46559efda0e2124b5a089f09fedb92c556dc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "23f6de2dc40cde2df8aa9ae2364f46559efda0e2124b5a089f09fedb92c556dc", kill_on_drop: false }` [INFO] [stdout] 23f6de2dc40cde2df8aa9ae2364f46559efda0e2124b5a089f09fedb92c556dc