[INFO] cloning repository https://github.com/ViliLipo/mini-pascal-compiler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ViliLipo/mini-pascal-compiler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FViliLipo%2Fmini-pascal-compiler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FViliLipo%2Fmini-pascal-compiler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0df044ecf222c236197a3a3cae1459646d748eb5
[INFO] checking ViliLipo/mini-pascal-compiler/0df044ecf222c236197a3a3cae1459646d748eb5 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FViliLipo%2Fmini-pascal-compiler" "/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/ViliLipo/mini-pascal-compiler 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/ViliLipo/mini-pascal-compiler
[INFO] finished tweaking git repo https://github.com/ViliLipo/mini-pascal-compiler
[INFO] tweaked toml for git repo https://github.com/ViliLipo/mini-pascal-compiler written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ViliLipo/mini-pascal-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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 625b753d023d4d54e24e35b05e999064f528108a09b06a4fefce2322020efa79
[INFO] running `Command { std: "docker" "start" "-a" "625b753d023d4d54e24e35b05e999064f528108a09b06a4fefce2322020efa79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "625b753d023d4d54e24e35b05e999064f528108a09b06a4fefce2322020efa79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "625b753d023d4d54e24e35b05e999064f528108a09b06a4fefce2322020efa79", kill_on_drop: false }`
[INFO] [stdout] 625b753d023d4d54e24e35b05e999064f528108a09b06a4fefce2322020efa79
[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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ce2d3dfa8c3d90c505af91218840bb90065c475761600b527a4decb5dcd14775
[INFO] running `Command { std: "docker" "start" "-a" "ce2d3dfa8c3d90c505af91218840bb90065c475761600b527a4decb5dcd14775", kill_on_drop: false }`
[INFO] [stderr]     Checking mini-pascal-compiler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `value` is never read
[INFO] [stdout]   --> src/symboltable.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct Entry {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pub value: String,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `is_closed` is never read
[INFO] [stdout]   --> src/symboltable.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct Scope {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 29 |     pub is_closed: bool,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `visit_ast` is never used
[INFO] [stdout]  --> src/visitor.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub trait Visitor {
[INFO] [stdout]   |           ------- method in this trait
[INFO] [stdout] 7 |     fn visit_ast(&mut self, node: &AST);
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/codegenvisitor.rs:253:54
[INFO] [stdout]     |
[INFO] [stdout] 253 |         if let Ok(mut file) = File::open(runtime_file.clone()) {
[INFO] [stdout]     |                                                      ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `value` is never read
[INFO] [stdout]   --> src/symboltable.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct Entry {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pub value: String,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `is_closed` is never read
[INFO] [stdout]   --> src/symboltable.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct Scope {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 29 |     pub is_closed: bool,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `visit_ast` is never used
[INFO] [stdout]  --> src/visitor.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub trait Visitor {
[INFO] [stdout]   |           ------- method in this trait
[INFO] [stdout] 7 |     fn visit_ast(&mut self, node: &AST);
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/codegenvisitor.rs:253:54
[INFO] [stdout]     |
[INFO] [stdout] 253 |         if let Ok(mut file) = File::open(runtime_file.clone()) {
[INFO] [stdout]     |                                                      ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `Command { std: "docker" "inspect" "ce2d3dfa8c3d90c505af91218840bb90065c475761600b527a4decb5dcd14775", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce2d3dfa8c3d90c505af91218840bb90065c475761600b527a4decb5dcd14775", kill_on_drop: false }`
[INFO] [stdout] ce2d3dfa8c3d90c505af91218840bb90065c475761600b527a4decb5dcd14775