[INFO] cloning repository https://github.com/johnshiver/rust-monkey
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/johnshiver/rust-monkey" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohnshiver%2Frust-monkey", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohnshiver%2Frust-monkey'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9bd494685956eacf4004a96b0bc8424d0d86aeaf
[INFO] checking johnshiver/rust-monkey against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohnshiver%2Frust-monkey" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/johnshiver/rust-monkey on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/johnshiver/rust-monkey
[INFO] finished tweaking git repo https://github.com/johnshiver/rust-monkey
[INFO] tweaked toml for git repo https://github.com/johnshiver/rust-monkey written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/johnshiver/rust-monkey already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "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-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] cf933344d0a3fd221d6277e796ba53d97f11f98323d54845eafe24d2a099f22e
[INFO] running `Command { std: "docker" "start" "-a" "cf933344d0a3fd221d6277e796ba53d97f11f98323d54845eafe24d2a099f22e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cf933344d0a3fd221d6277e796ba53d97f11f98323d54845eafe24d2a099f22e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf933344d0a3fd221d6277e796ba53d97f11f98323d54845eafe24d2a099f22e", kill_on_drop: false }`
[INFO] [stdout] cf933344d0a3fd221d6277e796ba53d97f11f98323d54845eafe24d2a099f22e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 221147f302df1f2b2f4bc2284a88607f21570bfc08732976395de0ce3cbb93ce
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "221147f302df1f2b2f4bc2284a88607f21570bfc08732976395de0ce3cbb93ce", kill_on_drop: false }`
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking monkey v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `RC`
[INFO] [stdout]    --> src/eval.rs:122:66
[INFO] [stdout]     |
[INFO] [stdout] 122 |             let func = match eval_expression(&call_exp.function, RC::clone(&env)) {
[INFO] [stdout]     |                                                                  ^^ use of undeclared type `RC`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `RC`
[INFO] [stdout]    --> src/eval.rs:122:66
[INFO] [stdout]     |
[INFO] [stdout] 122 |             let func = match eval_expression(&call_exp.function, RC::clone(&env)) {
[INFO] [stdout]     |                                                                  ^^ use of undeclared type `RC`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `IfExpression`
[INFO] [stdout]  --> src/eval.rs:2:50
[INFO] [stdout]   |
[INFO] [stdout] 2 |     BlockStatement, Expression, IdentExpression, IfExpression, Node, Program, Statement,
[INFO] [stdout]   |                                                  ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::process::id`
[INFO] [stdout]  --> src/eval.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::process::id;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::ast::Node`
[INFO] [stdout]    --> src/eval.rs:263:9
[INFO] [stdout]     |
[INFO] [stdout] 263 |     use crate::ast::Node;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Assign`, `If`, `Rparen`
[INFO] [stdout]  --> src/parser.rs:8:27
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::token::Token::{Assign, Eof, If, Rparen};
[INFO] [stdout]   |                           ^^^^^^       ^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Ident`
[INFO] [stdout]   --> src/parser.rs:11:30
[INFO] [stdout]    |
[INFO] [stdout] 11 | use crate::ast::Expression::{Ident, IfStatement};
[INFO] [stdout]    |                              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::ast::Node`
[INFO] [stdout]  --> src/repl.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::ast::Node;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::token::Token::Eof`
[INFO] [stdout]  --> src/repl.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::token::Token::Eof;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ptr::write_bytes`
[INFO] [stdout]  --> src/token.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::ptr::write_bytes;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `IfExpression`
[INFO] [stdout]  --> src/eval.rs:2:50
[INFO] [stdout]   |
[INFO] [stdout] 2 |     BlockStatement, Expression, IdentExpression, IfExpression, Node, Program, Statement,
[INFO] [stdout]   |                                                  ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::process::id`
[INFO] [stdout]  --> src/eval.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::process::id;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Assign`, `If`, `Rparen`
[INFO] [stdout]  --> src/parser.rs:8:27
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::token::Token::{Assign, Eof, If, Rparen};
[INFO] [stdout]   |                           ^^^^^^       ^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Ident`
[INFO] [stdout]   --> src/parser.rs:11:30
[INFO] [stdout]    |
[INFO] [stdout] 11 | use crate::ast::Expression::{Ident, IfStatement};
[INFO] [stdout]    |                              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::ast::Node`
[INFO] [stdout]  --> src/repl.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::ast::Node;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::token::Token::Eof`
[INFO] [stdout]  --> src/repl.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::token::Token::Eof;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ptr::write_bytes`
[INFO] [stdout]  --> src/token.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::ptr::write_bytes;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/eval.rs:127:17
[INFO] [stdout]     |
[INFO] [stdout] 126 |             match func {
[INFO] [stdout]     |                   ---- this expression has type `Rc<Object>`
[INFO] [stdout] 127 |                 Object::Function(func) => {
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^ expected struct `Rc`, found enum `Object`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected struct `Rc<Object>`
[INFO] [stdout]                  found enum `Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/eval.rs:127:43
[INFO] [stdout]     |
[INFO] [stdout] 127 |                   Object::Function(func) => {
[INFO] [stdout]     |  ___________________________________________^
[INFO] [stdout] 128 | |                     // eval arguments
[INFO] [stdout] 129 | |                     //
[INFO] [stdout] 130 | |                 }
[INFO] [stdout]     | |_________________^ expected enum `Result`, found `()`
[INFO] [stdout]     |
[INFO] [stdout]     = note:   expected enum `Result<Rc<Object>, EvalError>`
[INFO] [stdout]             found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/eval.rs:127:17
[INFO] [stdout]     |
[INFO] [stdout] 126 |             match func {
[INFO] [stdout]     |                   ---- this expression has type `Rc<Object>`
[INFO] [stdout] 127 |                 Object::Function(func) => {
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^ expected struct `Rc`, found enum `Object`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected struct `Rc<Object>`
[INFO] [stdout]                  found enum `Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/eval.rs:127:43
[INFO] [stdout]     |
[INFO] [stdout] 127 |                   Object::Function(func) => {
[INFO] [stdout]     |  ___________________________________________^
[INFO] [stdout] 128 | |                     // eval arguments
[INFO] [stdout] 129 | |                     //
[INFO] [stdout] 130 | |                 }
[INFO] [stdout]     | |_________________^ expected enum `Result`, found `()`
[INFO] [stdout]     |
[INFO] [stdout]     = note:   expected enum `Result<Rc<Object>, EvalError>`
[INFO] [stdout]             found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `monkey` due to 4 previous errors; 7 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 3 previous errors; 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "221147f302df1f2b2f4bc2284a88607f21570bfc08732976395de0ce3cbb93ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "221147f302df1f2b2f4bc2284a88607f21570bfc08732976395de0ce3cbb93ce", kill_on_drop: false }`
[INFO] [stdout] 221147f302df1f2b2f4bc2284a88607f21570bfc08732976395de0ce3cbb93ce