[INFO] cloning repository https://github.com/chioni16/simple-interpreter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/chioni16/simple-interpreter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchioni16%2Fsimple-interpreter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchioni16%2Fsimple-interpreter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 548102cf3634ca595805562b4ddfebe4344428b5
[INFO] checking chioni16/simple-interpreter against master#cced03bfd61a304243a34504618ecec86c17063f for pr-157082
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchioni16%2Fsimple-interpreter" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/chioni16/simple-interpreter
[INFO] finished tweaking git repo https://github.com/chioni16/simple-interpreter
[INFO] tweaked toml for git repo https://github.com/chioni16/simple-interpreter written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/chioni16/simple-interpreter on toolchain cced03bfd61a304243a34504618ecec86c17063f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cced03bfd61a304243a34504618ecec86c17063f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/chioni16/simple-interpreter 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" "+cced03bfd61a304243a34504618ecec86c17063f" "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/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3e793bdf10248eb2ddbd6b0faebed8155c11b4589982e2893733958d93e8d540" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 7e84286f54aaaf4464f1dfb6b6019a6a122ef194e1b9ceaca1c1ce6e93690cb8
[INFO] running `Command { std: "docker" "start" "7e84286f54aaaf4464f1dfb6b6019a6a122ef194e1b9ceaca1c1ce6e93690cb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "7e84286f54aaaf4464f1dfb6b6019a6a122ef194e1b9ceaca1c1ce6e93690cb8" "/opt/rustwide/cargo-home/bin/cargo" "+cced03bfd61a304243a34504618ecec86c17063f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7e84286f54aaaf4464f1dfb6b6019a6a122ef194e1b9ceaca1c1ce6e93690cb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "7e84286f54aaaf4464f1dfb6b6019a6a122ef194e1b9ceaca1c1ce6e93690cb8" "/opt/rustwide/cargo-home/bin/cargo" "+cced03bfd61a304243a34504618ecec86c17063f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking simple-interpreter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `let_chains` has been stable since 1.88.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(let_chains)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/emitter/mod.rs:259:13
[INFO] [stdout]     |
[INFO] [stdout] 259 |             _ => todo!(),
[INFO] [stdout]     |             ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> src/emitter/mod.rs:259:13
[INFO] [stdout]     |
[INFO] [stdout] 161 |             ExpressionNode::Ident(token) => {
[INFO] [stdout]     |             ---------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 167 |             ExpressionNode::Int(token) => {
[INFO] [stdout]     |             -------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 175 |             ExpressionNode::Bool(token) => {
[INFO] [stdout]     |             --------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 184 |             ExpressionNode::UnaryOperator(operator, operand) => {
[INFO] [stdout]     |             ------------------------------------------------ matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 259 |             _ => todo!(),
[INFO] [stdout]     |             ^ ...and 5 other patterns collectively make this unreachable
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]    --> src/emitter/mod.rs:255:51
[INFO] [stdout]     |
[INFO] [stdout] 255 |             ExpressionNode::FunctionCall(_, func, args) => {
[INFO] [stdout]     |                                                   ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `instructions` and `constants` are never read
[INFO] [stdout]   --> src/bytecode/mod.rs:97:16
[INFO] [stdout]    |
[INFO] [stdout] 96 | pub struct Bytecode {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 97 |     pub(crate) instructions: Vec<u8>,
[INFO] [stdout]    |                ^^^^^^^^^^^^
[INFO] [stdout] 98 |     pub(crate) constants: Vec<Object>,
[INFO] [stdout]    |                ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Bytecode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `scope` are never read
[INFO] [stdout]   --> src/emitter/mod.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct Symbol {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 16 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 17 |     scope: Scope,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Symbol` 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: feature `box_patterns` is declared but not used
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(box_patterns)]
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_features)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `let_chains` has been stable since 1.88.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(let_chains)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `interpreter::evaluation::eval_program`
[INFO] [stdout]  --> src/bin/hello.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use interpreter::evaluation::eval_program;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `interpreter::evaluation::eval_program`
[INFO] [stdout]  --> src/bin/hello.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use interpreter::evaluation::eval_program;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/emitter/mod.rs:259:13
[INFO] [stdout]     |
[INFO] [stdout] 259 |             _ => todo!(),
[INFO] [stdout]     |             ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> src/emitter/mod.rs:259:13
[INFO] [stdout]     |
[INFO] [stdout] 161 |             ExpressionNode::Ident(token) => {
[INFO] [stdout]     |             ---------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 167 |             ExpressionNode::Int(token) => {
[INFO] [stdout]     |             -------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 175 |             ExpressionNode::Bool(token) => {
[INFO] [stdout]     |             --------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 184 |             ExpressionNode::UnaryOperator(operator, operand) => {
[INFO] [stdout]     |             ------------------------------------------------ matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 259 |             _ => todo!(),
[INFO] [stdout]     |             ^ ...and 5 other patterns collectively make this unreachable
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]    --> src/emitter/mod.rs:255:51
[INFO] [stdout]     |
[INFO] [stdout] 255 |             ExpressionNode::FunctionCall(_, func, args) => {
[INFO] [stdout]     |                                                   ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `instructions` and `constants` are never read
[INFO] [stdout]   --> src/bytecode/mod.rs:97:16
[INFO] [stdout]    |
[INFO] [stdout] 96 | pub struct Bytecode {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 97 |     pub(crate) instructions: Vec<u8>,
[INFO] [stdout]    |                ^^^^^^^^^^^^
[INFO] [stdout] 98 |     pub(crate) constants: Vec<Object>,
[INFO] [stdout]    |                ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Bytecode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `scope` are never read
[INFO] [stdout]   --> src/emitter/mod.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct Symbol {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 16 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 17 |     scope: Scope,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Symbol` 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: feature `box_patterns` is declared but not used
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(box_patterns)]
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_features)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "7e84286f54aaaf4464f1dfb6b6019a6a122ef194e1b9ceaca1c1ce6e93690cb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e84286f54aaaf4464f1dfb6b6019a6a122ef194e1b9ceaca1c1ce6e93690cb8", kill_on_drop: false }`
[INFO] [stdout] 7e84286f54aaaf4464f1dfb6b6019a6a122ef194e1b9ceaca1c1ce6e93690cb8