[INFO] cloning repository https://github.com/xiaoguaixu/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/xiaoguaixu/rust-monkey" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxiaoguaixu%2Frust-monkey", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxiaoguaixu%2Frust-monkey'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d9e2c975fd7c22cad9cca9a563770cc6ccbd254c
[INFO] checking xiaoguaixu/rust-monkey against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxiaoguaixu%2Frust-monkey" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/xiaoguaixu/rust-monkey on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/xiaoguaixu/rust-monkey
[INFO] finished tweaking git repo https://github.com/xiaoguaixu/rust-monkey
[INFO] tweaked toml for git repo https://github.com/xiaoguaixu/rust-monkey written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/xiaoguaixu/rust-monkey 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8d882cc6cef8841379faaf8d7af378817463096cfb4ded52f2a1882e7ae5e99b
[INFO] running `Command { std: "docker" "start" "-a" "8d882cc6cef8841379faaf8d7af378817463096cfb4ded52f2a1882e7ae5e99b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8d882cc6cef8841379faaf8d7af378817463096cfb4ded52f2a1882e7ae5e99b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d882cc6cef8841379faaf8d7af378817463096cfb4ded52f2a1882e7ae5e99b", kill_on_drop: false }`
[INFO] [stdout] 8d882cc6cef8841379faaf8d7af378817463096cfb4ded52f2a1882e7ae5e99b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7bef456b3f30309c19af1128c0b4289d930ace132edaf56c60ae4c28dbfa5497
[INFO] running `Command { std: "docker" "start" "-a" "7bef456b3f30309c19af1128c0b4289d930ace132edaf56c60ae4c28dbfa5497", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]    Compiling siphasher v0.3.11
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]     Checking once_cell v1.18.0
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]     Checking phf_shared v0.11.2
[INFO] [stderr]    Compiling phf_generator v0.11.2
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.38
[INFO] [stderr]    Compiling phf_macros v0.11.2
[INFO] [stderr]     Checking phf v0.11.2
[INFO] [stderr]     Checking rust-monkey v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `as_any_mut` is never used
[INFO] [stdout]   --> src/object/base.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub trait Downcast {
[INFO] [stdout]    |           -------- method in this trait
[INFO] [stdout] 31 |     fn as_any(&self) -> &dyn Any;
[INFO] [stdout] 32 |     fn as_any_mut(&mut self) -> &mut dyn Any;
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `as_any_mut` is never used
[INFO] [stdout]  --> src/ast/base.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub trait Node {
[INFO] [stdout]   |           ---- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 9 |     fn as_any_mut(&mut self) -> &mut dyn Any;
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `statement_node` is never used
[INFO] [stdout]   --> src/ast/base.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub trait Statement: Node {
[INFO] [stdout]    |           --------- method in this trait
[INFO] [stdout] 13 |     fn statement_node(&self);
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `expression_node` is never used
[INFO] [stdout]   --> src/ast/base.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub trait Expression: Node {
[INFO] [stdout]    |           ---------- method in this trait
[INFO] [stdout] 18 |     fn expression_node(&self);
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Upcast` is never used
[INFO] [stdout]   --> src/ast/base.rs:22:11
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub trait Upcast {
[INFO] [stdout]    |           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `as_any_mut` is never used
[INFO] [stdout]   --> src/object/base.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub trait Downcast {
[INFO] [stdout]    |           -------- method in this trait
[INFO] [stdout] 31 |     fn as_any(&self) -> &dyn Any;
[INFO] [stdout] 32 |     fn as_any_mut(&mut self) -> &mut dyn Any;
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `as_any_mut` is never used
[INFO] [stdout]  --> src/ast/base.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub trait Node {
[INFO] [stdout]   |           ---- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 9 |     fn as_any_mut(&mut self) -> &mut dyn Any;
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `statement_node` is never used
[INFO] [stdout]   --> src/ast/base.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub trait Statement: Node {
[INFO] [stdout]    |           --------- method in this trait
[INFO] [stdout] 13 |     fn statement_node(&self);
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `expression_node` is never used
[INFO] [stdout]   --> src/ast/base.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub trait Expression: Node {
[INFO] [stdout]    |           ---------- method in this trait
[INFO] [stdout] 18 |     fn expression_node(&self);
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Upcast` is never used
[INFO] [stdout]   --> src/ast/base.rs:22:11
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub trait Upcast {
[INFO] [stdout]    |           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.02s
[INFO] running `Command { std: "docker" "inspect" "7bef456b3f30309c19af1128c0b4289d930ace132edaf56c60ae4c28dbfa5497", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bef456b3f30309c19af1128c0b4289d930ace132edaf56c60ae4c28dbfa5497", kill_on_drop: false }`
[INFO] [stdout] 7bef456b3f30309c19af1128c0b4289d930ace132edaf56c60ae4c28dbfa5497