[INFO] cloning repository https://github.com/So2aric/Rua
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/So2aric/Rua" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSo2aric%2FRua", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSo2aric%2FRua'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a2ec511f6283ec802496036c74f747b36d92b608
[INFO] checking So2aric/Rua/a2ec511f6283ec802496036c74f747b36d92b608 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSo2aric%2FRua" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/So2aric/Rua on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/So2aric/Rua
[INFO] finished tweaking git repo https://github.com/So2aric/Rua
[INFO] tweaked toml for git repo https://github.com/So2aric/Rua written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/So2aric/Rua 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ff56d6e99fcc021b913c46fea9ddc56b8690983e0c31129dca17d821ec78e55c
[INFO] running `Command { std: "docker" "start" "-a" "ff56d6e99fcc021b913c46fea9ddc56b8690983e0c31129dca17d821ec78e55c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ff56d6e99fcc021b913c46fea9ddc56b8690983e0c31129dca17d821ec78e55c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff56d6e99fcc021b913c46fea9ddc56b8690983e0c31129dca17d821ec78e55c", kill_on_drop: false }`
[INFO] [stdout] ff56d6e99fcc021b913c46fea9ddc56b8690983e0c31129dca17d821ec78e55c
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f5c1d3a518cdc9bb772bfd657d853106a93aa2836b82e77677a3c55d4f605e7c
[INFO] running `Command { std: "docker" "start" "-a" "f5c1d3a518cdc9bb772bfd657d853106a93aa2836b82e77677a3c55d4f605e7c", kill_on_drop: false }`
[INFO] [stderr]     Checking rua v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `ident`
[INFO] [stdout]   --> src/lang/compiler.rs:97:35
[INFO] [stdout]    |
[INFO] [stdout] 97 |     fn visit_func_decl(&mut self, ident: &Ident, args: &IdentList, body: &StmtList) {
[INFO] [stdout]    |                                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_ident`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `str_map_ptr` is never read
[INFO] [stdout]   --> src/lang/compiler.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 5  | pub struct Compiler {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 10 |     str_map_ptr: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `parent`, `body`, and `env` are never read
[INFO] [stdout]   --> src/lang/vm.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct Frame {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 15 |     parent: Box<Frame>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 16 |     body: Bytecodes,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 17 |     env: HashMap<String, Value>
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `call_stack` is never read
[INFO] [stdout]   --> src/lang/vm.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct VirtualMachine {
[INFO] [stdout]    |            -------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 27 |     call_stack: Vec<Frame>
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ident`
[INFO] [stdout]   --> src/lang/compiler.rs:97:35
[INFO] [stdout]    |
[INFO] [stdout] 97 |     fn visit_func_decl(&mut self, ident: &Ident, args: &IdentList, body: &StmtList) {
[INFO] [stdout]    |                                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_ident`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `str_map_ptr` is never read
[INFO] [stdout]   --> src/lang/compiler.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 5  | pub struct Compiler {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 10 |     str_map_ptr: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `parent`, `body`, and `env` are never read
[INFO] [stdout]   --> src/lang/vm.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct Frame {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 15 |     parent: Box<Frame>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 16 |     body: Bytecodes,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 17 |     env: HashMap<String, Value>
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `call_stack` is never read
[INFO] [stdout]   --> src/lang/vm.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct VirtualMachine {
[INFO] [stdout]    |            -------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 27 |     call_stack: Vec<Frame>
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `Command { std: "docker" "inspect" "f5c1d3a518cdc9bb772bfd657d853106a93aa2836b82e77677a3c55d4f605e7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5c1d3a518cdc9bb772bfd657d853106a93aa2836b82e77677a3c55d4f605e7c", kill_on_drop: false }`
[INFO] [stdout] f5c1d3a518cdc9bb772bfd657d853106a93aa2836b82e77677a3c55d4f605e7c