[INFO] cloning repository https://github.com/GraftonJames/monkey_compiler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/GraftonJames/monkey_compiler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGraftonJames%2Fmonkey_compiler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGraftonJames%2Fmonkey_compiler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5bec5667b03743df224e8296311c489ef49b4dcd
[INFO] checking GraftonJames/monkey_compiler against master#642c19bfc3a5c1de985bf5d0cc8207ac9d22708a for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGraftonJames%2Fmonkey_compiler" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/GraftonJames/monkey_compiler
[INFO] finished tweaking git repo https://github.com/GraftonJames/monkey_compiler
[INFO] tweaked toml for git repo https://github.com/GraftonJames/monkey_compiler written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/GraftonJames/monkey_compiler on toolchain 642c19bfc3a5c1de985bf5d0cc8207ac9d22708a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/GraftonJames/monkey_compiler 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" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 49916ced1649947043acf717773d22f9317d74eb5eb3d332a3e2df69cbe2da4b
[INFO] running `Command { std: "docker" "start" "-a" "49916ced1649947043acf717773d22f9317d74eb5eb3d332a3e2df69cbe2da4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "49916ced1649947043acf717773d22f9317d74eb5eb3d332a3e2df69cbe2da4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49916ced1649947043acf717773d22f9317d74eb5eb3d332a3e2df69cbe2da4b", kill_on_drop: false }`
[INFO] [stdout] 49916ced1649947043acf717773d22f9317d74eb5eb3d332a3e2df69cbe2da4b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f7d6d4ea5a0fc24e1d04ea42a63821064ec0e4f73350522bb87e02240d88e15
[INFO] running `Command { std: "docker" "start" "-a" "5f7d6d4ea5a0fc24e1d04ea42a63821064ec0e4f73350522bb87e02240d88e15", kill_on_drop: false }`
[INFO] [stderr]     Checking monkey-compiler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/ast/mod.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/object/mod.rs:110:23
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub func: Rc<Box<dyn (Fn(Vec<Box<dyn Obj>>) -> Result<Box<dyn Obj>, EvalError>)>>,
[INFO] [stdout]     |                          ^                                                        ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 110 -     pub func: Rc<Box<dyn (Fn(Vec<Box<dyn Obj>>) -> Result<Box<dyn Obj>, EvalError>)>>,
[INFO] [stdout] 110 +     pub func: Rc<Box<dyn Fn(Vec<Box<dyn Obj>>) -> Result<Box<dyn Obj>, EvalError> >>,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `eval::EvalError`
[INFO] [stdout]  --> src/parser/mod.rs:3:2
[INFO] [stdout]   |
[INFO] [stdout] 3 |     eval::EvalError,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/ast/mod.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/object/mod.rs:110:23
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub func: Rc<Box<dyn (Fn(Vec<Box<dyn Obj>>) -> Result<Box<dyn Obj>, EvalError>)>>,
[INFO] [stdout]     |                          ^                                                        ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 110 -     pub func: Rc<Box<dyn (Fn(Vec<Box<dyn Obj>>) -> Result<Box<dyn Obj>, EvalError>)>>,
[INFO] [stdout] 110 +     pub func: Rc<Box<dyn Fn(Vec<Box<dyn Obj>>) -> Result<Box<dyn Obj>, EvalError> >>,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `eval::EvalError`
[INFO] [stdout]  --> src/parser/mod.rs:3:2
[INFO] [stdout]   |
[INFO] [stdout] 3 |     eval::EvalError,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> src/eval/mod.rs:68:22
[INFO] [stdout]    |
[INFO] [stdout] 68 |             .map(|HashPair(k, v)| try_hash(k))
[INFO] [stdout]    |                               ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]    --> src/ast/mod.rs:297:6
[INFO] [stdout]     |
[INFO] [stdout] 296 | pub struct BooleanLiteral {
[INFO] [stdout]     |            -------------- field in this struct
[INFO] [stdout] 297 |     pub token: Token,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `BooleanLiteral` has a derived impl for the trait `Clone`, 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: method `parse_program` is never used
[INFO] [stdout]    --> src/parser/mod.rs:117:9
[INFO] [stdout]     |
[INFO] [stdout]  77 | impl<I: Iterator<Item = char>> Parser<I> {
[INFO] [stdout]     | ---------------------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 117 |     pub fn parse_program(self) -> Program {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> src/eval/mod.rs:68:22
[INFO] [stdout]    |
[INFO] [stdout] 68 |             .map(|HashPair(k, v)| try_hash(k))
[INFO] [stdout]    |                               ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]    --> src/ast/mod.rs:297:6
[INFO] [stdout]     |
[INFO] [stdout] 296 | pub struct BooleanLiteral {
[INFO] [stdout]     |            -------------- field in this struct
[INFO] [stdout] 297 |     pub token: Token,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `BooleanLiteral` has a derived impl for the trait `Clone`, 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: method `parse_program` is never used
[INFO] [stdout]    --> src/parser/mod.rs:117:9
[INFO] [stdout]     |
[INFO] [stdout]  77 | impl<I: Iterator<Item = char>> Parser<I> {
[INFO] [stdout]     | ---------------------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 117 |     pub fn parse_program(self) -> Program {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `Command { std: "docker" "inspect" "5f7d6d4ea5a0fc24e1d04ea42a63821064ec0e4f73350522bb87e02240d88e15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f7d6d4ea5a0fc24e1d04ea42a63821064ec0e4f73350522bb87e02240d88e15", kill_on_drop: false }`
[INFO] [stdout] 5f7d6d4ea5a0fc24e1d04ea42a63821064ec0e4f73350522bb87e02240d88e15