[INFO] cloning repository https://github.com/obadogg/rust_lox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/obadogg/rust_lox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fobadogg%2Frust_lox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fobadogg%2Frust_lox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a43300581b792513a878712b217bb99181319344
[INFO] testing obadogg/rust_lox against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fobadogg%2Frust_lox" "/workspace/builds/worker-24/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-24/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/obadogg/rust_lox on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/obadogg/rust_lox
[INFO] finished tweaking git repo https://github.com/obadogg/rust_lox
[INFO] tweaked toml for git repo https://github.com/obadogg/rust_lox written to /workspace/builds/worker-24/source/Cargo.toml
[INFO] crate git repo https://github.com/obadogg/rust_lox already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "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-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9f40e06feb565f3e4069b325a18cf32478d708e329c3c463970bf5864d4ceb0d
[INFO] running `Command { std: "docker" "start" "-a" "9f40e06feb565f3e4069b325a18cf32478d708e329c3c463970bf5864d4ceb0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9f40e06feb565f3e4069b325a18cf32478d708e329c3c463970bf5864d4ceb0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f40e06feb565f3e4069b325a18cf32478d708e329c3c463970bf5864d4ceb0d", kill_on_drop: false }`
[INFO] [stdout] 9f40e06feb565f3e4069b325a18cf32478d708e329c3c463970bf5864d4ceb0d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 63de6840f82d7fc7f4f672a1fc0557ed6e9e3e339b23e66501da2091473b1877
[INFO] running `Command { std: "docker" "start" "-a" "63de6840f82d7fc7f4f672a1fc0557ed6e9e3e339b23e66501da2091473b1877", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_lox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::parser::statement`
[INFO] [stdout]  --> src/semantic/scope_analyst.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::parser::statement;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::super::utils::*`
[INFO] [stdout]  --> src/semantic/scope_analyst.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use super::super::utils::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `cell::RefCell`
[INFO] [stdout]  --> src/main.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::{cell::RefCell, rc::Rc};
[INFO] [stdout]   |           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/semantic/scope_analyst.rs:73:13
[INFO] [stdout]    |
[INFO] [stdout] 73 |             _ => {}
[INFO] [stdout]    |             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/semantic/scope_analyst.rs:97:13
[INFO] [stdout]    |
[INFO] [stdout] 97 |             _ => {}
[INFO] [stdout]    |             ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fun_type`
[INFO] [stdout]    --> src/parser/parser.rs:111:28
[INFO] [stdout]     |
[INFO] [stdout] 111 |     fn fun_decl(&mut self, fun_type: FunType) -> Result<FunctionStatement, ()> {
[INFO] [stdout]     |                            ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_fun_type`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `SubClass`
[INFO] [stdout]   --> src/semantic/scope_analyst.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     SubClass,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `a`
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub a: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.68s
[INFO] running `Command { std: "docker" "inspect" "63de6840f82d7fc7f4f672a1fc0557ed6e9e3e339b23e66501da2091473b1877", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63de6840f82d7fc7f4f672a1fc0557ed6e9e3e339b23e66501da2091473b1877", kill_on_drop: false }`
[INFO] [stdout] 63de6840f82d7fc7f4f672a1fc0557ed6e9e3e339b23e66501da2091473b1877
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ee29d1c2b472061d85ef634994380d04130bc99d1ec2732ac2bb49f2969b4a31
[INFO] running `Command { std: "docker" "start" "-a" "ee29d1c2b472061d85ef634994380d04130bc99d1ec2732ac2bb49f2969b4a31", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust_lox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::parser::statement`
[INFO] [stdout]  --> src/semantic/scope_analyst.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::parser::statement;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::super::utils::*`
[INFO] [stdout]  --> src/semantic/scope_analyst.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use super::super::utils::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `cell::RefCell`
[INFO] [stdout]  --> src/main.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::{cell::RefCell, rc::Rc};
[INFO] [stdout]   |           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/semantic/scope_analyst.rs:73:13
[INFO] [stdout]    |
[INFO] [stdout] 73 |             _ => {}
[INFO] [stdout]    |             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/semantic/scope_analyst.rs:97:13
[INFO] [stdout]    |
[INFO] [stdout] 97 |             _ => {}
[INFO] [stdout]    |             ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fun_type`
[INFO] [stdout]    --> src/parser/parser.rs:111:28
[INFO] [stdout]     |
[INFO] [stdout] 111 |     fn fun_decl(&mut self, fun_type: FunType) -> Result<FunctionStatement, ()> {
[INFO] [stdout]     |                            ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_fun_type`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `SubClass`
[INFO] [stdout]   --> src/semantic/scope_analyst.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     SubClass,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `a`
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub a: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 10.59s
[INFO] running `Command { std: "docker" "inspect" "ee29d1c2b472061d85ef634994380d04130bc99d1ec2732ac2bb49f2969b4a31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee29d1c2b472061d85ef634994380d04130bc99d1ec2732ac2bb49f2969b4a31", kill_on_drop: false }`
[INFO] [stdout] ee29d1c2b472061d85ef634994380d04130bc99d1ec2732ac2bb49f2969b4a31
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a84249765443964963b4a125ac9f0b8d50c80b027f3541291d379719465b5f21
[INFO] running `Command { std: "docker" "start" "-a" "a84249765443964963b4a125ac9f0b8d50c80b027f3541291d379719465b5f21", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `crate::parser::statement`
[INFO] [stderr]  --> src/semantic/scope_analyst.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use crate::parser::statement;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::super::utils::*`
[INFO] [stderr]  --> src/semantic/scope_analyst.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use super::super::utils::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `cell::RefCell`
[INFO] [stderr]  --> src/main.rs:6:11
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::{cell::RefCell, rc::Rc};
[INFO] [stderr]   |           ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/semantic/scope_analyst.rs:73:13
[INFO] [stderr]    |
[INFO] [stderr] 73 |             _ => {}
[INFO] [stderr]    |             ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/semantic/scope_analyst.rs:97:13
[INFO] [stderr]    |
[INFO] [stderr] 97 |             _ => {}
[INFO] [stderr]    |             ^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `fun_type`
[INFO] [stderr]    --> src/parser/parser.rs:111:28
[INFO] [stderr]     |
[INFO] [stderr] 111 |     fn fun_decl(&mut self, fun_type: FunType) -> Result<FunctionStatement, ()> {
[INFO] [stderr]     |                            ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_fun_type`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SubClass`
[INFO] [stderr]   --> src/semantic/scope_analyst.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     SubClass,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `a`
[INFO] [stderr]   --> src/main.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     pub a: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rust_lox` (bin "rust_lox" test) generated 9 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_lox-f991015ae87b6714)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a84249765443964963b4a125ac9f0b8d50c80b027f3541291d379719465b5f21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a84249765443964963b4a125ac9f0b8d50c80b027f3541291d379719465b5f21", kill_on_drop: false }`
[INFO] [stdout] a84249765443964963b4a125ac9f0b8d50c80b027f3541291d379719465b5f21