[INFO] cloning repository https://github.com/Kmdell/monkey-interpreter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Kmdell/monkey-interpreter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKmdell%2Fmonkey-interpreter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKmdell%2Fmonkey-interpreter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 91fc827c24a40944d27298e66eca10897e59f0dc
[INFO] checking Kmdell/monkey-interpreter/91fc827c24a40944d27298e66eca10897e59f0dc against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKmdell%2Fmonkey-interpreter" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Kmdell/monkey-interpreter on toolchain 7014e13d5becc920d4bea3cd87942c8a13d359bf
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Kmdell/monkey-interpreter
[INFO] finished tweaking git repo https://github.com/Kmdell/monkey-interpreter
[INFO] tweaked toml for git repo https://github.com/Kmdell/monkey-interpreter written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Kmdell/monkey-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" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 73547224456a6ca88383c49f481625c5af1003a0a77549facac079e6f41474ae
[INFO] running `Command { std: "docker" "start" "-a" "73547224456a6ca88383c49f481625c5af1003a0a77549facac079e6f41474ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "73547224456a6ca88383c49f481625c5af1003a0a77549facac079e6f41474ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73547224456a6ca88383c49f481625c5af1003a0a77549facac079e6f41474ae", kill_on_drop: false }`
[INFO] [stdout] 73547224456a6ca88383c49f481625c5af1003a0a77549facac079e6f41474ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 -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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2e896965f785fc69efce4754b477ace7d561033970f6e14f86efec4f6de69fe6
[INFO] running `Command { std: "docker" "start" "-a" "2e896965f785fc69efce4754b477ace7d561033970f6e14f86efec4f6de69fe6", kill_on_drop: false }`
[INFO] [stderr]     Checking whoami v1.4.1
[INFO] [stderr]     Checking monkey-interpreter-v1 v0.1.0 (/opt/rustwide/workdir/monkey_interpreter_v1)
[INFO] [stderr]     Checking monkey-interpreter-v2 v0.1.0 (/opt/rustwide/workdir/monkey_interpreter_v2)
[INFO] [stdout] warning: unused import: `collections::HashMap`
[INFO] [stdout]  --> monkey_interpreter_v2/src/evaluator/test_evaluator.rs:1:26
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{cell::RefCell, collections::HashMap, rc::Rc};
[INFO] [stdout]   |                          ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rc::Rc`
[INFO] [stdout]  --> monkey_interpreter_v2/src/parser/parser_test.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     rc::Rc,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `into_hash` is never used
[INFO] [stdout]   --> monkey_interpreter_v1/src/ast.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 4  | pub trait Node {
[INFO] [stdout]    |           ---- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 55 |     fn into_hash(&self) -> Result<&HashLiteral, String> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `statement_node` is never used
[INFO] [stdout]   --> monkey_interpreter_v1/src/ast.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 61 | pub trait Statement: Node {
[INFO] [stdout]    |           --------- method in this trait
[INFO] [stdout] 62 |     fn statement_node(&self) {}
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `expression_node` is never used
[INFO] [stdout]   --> monkey_interpreter_v1/src/ast.rs:66:8
[INFO] [stdout]    |
[INFO] [stdout] 65 | pub trait Expression: Node {
[INFO] [stdout]    |           ---------- method in this trait
[INFO] [stdout] 66 |     fn expression_node(&self) {}
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this value of type `std::vec::IntoIter<(Object, i64)>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> monkey_interpreter_v2/src/evaluator/test_evaluator.rs:409:33
[INFO] [stdout]     |
[INFO] [stdout] 391 |     let eval = test_eval(input);
[INFO] [stdout]     |         ---- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 409 |     for (exp_key, exp_value) in expected {
[INFO] [stdout]     |                                 ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout]     = note: requested on the command line with `-D tail-expr-drop-order`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this value of type `Node` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> monkey_interpreter_v2/src/evaluator/test_evaluator.rs:446:22
[INFO] [stdout]     |
[INFO] [stdout] 441 |     let mut p = Parser::new(l);
[INFO] [stdout]     |         ----- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] 442 |     let env = Rc::new(RefCell::new(Environment::new()));
[INFO] [stdout]     |         --- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 445 |     let builtins = new_builtins();
[INFO] [stdout]     |         -------- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] 446 |     evaluator::eval(&Node::Program(Box::new(prog)), &env, &builtins)
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `monkey-interpreter-v2` (bin "monkey-interpreter-v2" test) due to 3 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: method `into_hash` is never used
[INFO] [stdout]   --> monkey_interpreter_v1/src/ast.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 4  | pub trait Node {
[INFO] [stdout]    |           ---- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 55 |     fn into_hash(&self) -> Result<&HashLiteral, String> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `statement_node` is never used
[INFO] [stdout]   --> monkey_interpreter_v1/src/ast.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 61 | pub trait Statement: Node {
[INFO] [stdout]    |           --------- method in this trait
[INFO] [stdout] 62 |     fn statement_node(&self) {}
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `expression_node` is never used
[INFO] [stdout]   --> monkey_interpreter_v1/src/ast.rs:66:8
[INFO] [stdout]    |
[INFO] [stdout] 65 | pub trait Expression: Node {
[INFO] [stdout]    |           ---------- method in this trait
[INFO] [stdout] 66 |     fn expression_node(&self) {}
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2e896965f785fc69efce4754b477ace7d561033970f6e14f86efec4f6de69fe6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e896965f785fc69efce4754b477ace7d561033970f6e14f86efec4f6de69fe6", kill_on_drop: false }`
[INFO] [stdout] 2e896965f785fc69efce4754b477ace7d561033970f6e14f86efec4f6de69fe6