[INFO] cloning repository https://github.com/GabrielDertoni/compiladores
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/GabrielDertoni/compiladores" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGabrielDertoni%2Fcompiladores", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGabrielDertoni%2Fcompiladores'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7ce880ba40773f294bc68b3f35e086050c442ed0
[INFO] testing GabrielDertoni/compiladores against 1.75.0 for beta-1.76-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGabrielDertoni%2Fcompiladores" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/GabrielDertoni/compiladores on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/GabrielDertoni/compiladores
[INFO] finished tweaking git repo https://github.com/GabrielDertoni/compiladores
[INFO] tweaked toml for git repo https://github.com/GabrielDertoni/compiladores written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/GabrielDertoni/compiladores 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" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d3fe0e4b334028870384ae78acdafc7c9a99198d09520913b79a6160573bd319
[INFO] running `Command { std: "docker" "start" "-a" "d3fe0e4b334028870384ae78acdafc7c9a99198d09520913b79a6160573bd319", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d3fe0e4b334028870384ae78acdafc7c9a99198d09520913b79a6160573bd319", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3fe0e4b334028870384ae78acdafc7c9a99198d09520913b79a6160573bd319", kill_on_drop: false }`
[INFO] [stdout] d3fe0e4b334028870384ae78acdafc7c9a99198d09520913b79a6160573bd319
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b03b2c1f91ebc69cc60c930688fc2d880219fd03da2433e4c73401e4e59ce6b2
[INFO] running `Command { std: "docker" "start" "-a" "b03b2c1f91ebc69cc60c930688fc2d880219fd03da2433e4c73401e4e59ce6b2", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]    Compiling proc-macro2 v1.0.64
[INFO] [stderr]    Compiling quote v1.0.29
[INFO] [stderr]    Compiling unicode-ident v1.0.10
[INFO] [stderr]    Compiling beef v0.5.2
[INFO] [stderr]    Compiling regex-syntax v0.6.29
[INFO] [stderr]    Compiling ast v0.1.0 (/opt/rustwide/workdir/ast)
[INFO] [stderr]    Compiling type-check v0.1.0 (/opt/rustwide/workdir/type-check)
[INFO] [stdout] warning: unused import: `Instr::*`
[INFO] [stdout]     --> type-check/src/lib.rs:1004:9
[INFO] [stdout]      |
[INFO] [stdout] 1004 |     use Instr::*;
[INFO] [stdout]      |         ^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `instr`
[INFO] [stdout]     --> type-check/src/lib.rs:1006:9
[INFO] [stdout]      |
[INFO] [stdout] 1006 |     for instr in instrs {}
[INFO] [stdout]      |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_instr`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `w`
[INFO] [stdout]     --> type-check/src/lib.rs:1002:9
[INFO] [stdout]      |
[INFO] [stdout] 1002 |     mut w: W,
[INFO] [stdout]      |         ^ help: if this is intentional, prefix it with an underscore: `_w`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> type-check/src/lib.rs:1002:5
[INFO] [stdout]      |
[INFO] [stdout] 1002 |     mut w: W,
[INFO] [stdout]      |     ----^
[INFO] [stdout]      |     |
[INFO] [stdout]      |     help: remove this `mut`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `frame` and `code` are never read
[INFO] [stdout]    --> type-check/src/lib.rs:527:5
[INFO] [stdout]     |
[INFO] [stdout] 526 | pub struct Function {
[INFO] [stdout]     |            -------- fields in this struct
[INFO] [stdout] 527 |     frame: Frame,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 528 |     code: Vec<Instr>,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Function` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `globals` is never read
[INFO] [stdout]    --> type-check/src/lib.rs:585:5
[INFO] [stdout]     |
[INFO] [stdout] 584 | pub struct Codegen {
[INFO] [stdout]     |            ------- field in this struct
[INFO] [stdout] 585 |     globals: HashMap<ast::Ident, usize>,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling syn v2.0.25
[INFO] [stderr]    Compiling logos-codegen v0.13.0
[INFO] [stderr]    Compiling logos-derive v0.13.0
[INFO] [stderr]    Compiling logos v0.13.0
[INFO] [stderr]    Compiling parser v0.1.0 (/opt/rustwide/workdir/parser)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.07s
[INFO] running `Command { std: "docker" "inspect" "b03b2c1f91ebc69cc60c930688fc2d880219fd03da2433e4c73401e4e59ce6b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b03b2c1f91ebc69cc60c930688fc2d880219fd03da2433e4c73401e4e59ce6b2", kill_on_drop: false }`
[INFO] [stdout] b03b2c1f91ebc69cc60c930688fc2d880219fd03da2433e4c73401e4e59ce6b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d8a699e1c40752f1276690f62c9ad818323456c8827597758a683ca354e1971f
[INFO] running `Command { std: "docker" "start" "-a" "d8a699e1c40752f1276690f62c9ad818323456c8827597758a683ca354e1971f", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]    Compiling ast v0.1.0 (/opt/rustwide/workdir/ast)
[INFO] [stdout] warning: unused import: `Instr::*`
[INFO] [stdout]     --> type-check/src/lib.rs:1004:9
[INFO] [stdout]      |
[INFO] [stdout] 1004 |     use Instr::*;
[INFO] [stdout]      |         ^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `instr`
[INFO] [stdout]     --> type-check/src/lib.rs:1006:9
[INFO] [stdout]      |
[INFO] [stdout] 1006 |     for instr in instrs {}
[INFO] [stdout]      |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_instr`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `w`
[INFO] [stdout]     --> type-check/src/lib.rs:1002:9
[INFO] [stdout]      |
[INFO] [stdout] 1002 |     mut w: W,
[INFO] [stdout]      |         ^ help: if this is intentional, prefix it with an underscore: `_w`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> type-check/src/lib.rs:1002:5
[INFO] [stdout]      |
[INFO] [stdout] 1002 |     mut w: W,
[INFO] [stdout]      |     ----^
[INFO] [stdout]      |     |
[INFO] [stdout]      |     help: remove this `mut`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `frame` and `code` are never read
[INFO] [stdout]    --> type-check/src/lib.rs:527:5
[INFO] [stdout]     |
[INFO] [stdout] 526 | pub struct Function {
[INFO] [stdout]     |            -------- fields in this struct
[INFO] [stdout] 527 |     frame: Frame,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 528 |     code: Vec<Instr>,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Function` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling type-check v0.1.0 (/opt/rustwide/workdir/type-check)
[INFO] [stdout] warning: field `globals` is never read
[INFO] [stdout]    --> type-check/src/lib.rs:585:5
[INFO] [stdout]     |
[INFO] [stdout] 584 | pub struct Codegen {
[INFO] [stdout]     |            ------- field in this struct
[INFO] [stdout] 585 |     globals: HashMap<ast::Ident, usize>,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling parser v0.1.0 (/opt/rustwide/workdir/parser)
[INFO] [stdout] warning: unused import: `Instr::*`
[INFO] [stdout]     --> type-check/src/lib.rs:1004:9
[INFO] [stdout]      |
[INFO] [stdout] 1004 |     use Instr::*;
[INFO] [stdout]      |         ^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `instr`
[INFO] [stdout]     --> type-check/src/lib.rs:1006:9
[INFO] [stdout]      |
[INFO] [stdout] 1006 |     for instr in instrs {}
[INFO] [stdout]      |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_instr`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `w`
[INFO] [stdout]     --> type-check/src/lib.rs:1002:9
[INFO] [stdout]      |
[INFO] [stdout] 1002 |     mut w: W,
[INFO] [stdout]      |         ^ help: if this is intentional, prefix it with an underscore: `_w`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> type-check/src/lib.rs:1002:5
[INFO] [stdout]      |
[INFO] [stdout] 1002 |     mut w: W,
[INFO] [stdout]      |     ----^
[INFO] [stdout]      |     |
[INFO] [stdout]      |     help: remove this `mut`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `frame` is never read
[INFO] [stdout]    --> type-check/src/lib.rs:527:5
[INFO] [stdout]     |
[INFO] [stdout] 526 | pub struct Function {
[INFO] [stdout]     |            -------- field in this struct
[INFO] [stdout] 527 |     frame: Frame,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Function` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `globals` is never read
[INFO] [stdout]    --> type-check/src/lib.rs:585:5
[INFO] [stdout]     |
[INFO] [stdout] 584 | pub struct Codegen {
[INFO] [stdout]     |            ------- field in this struct
[INFO] [stdout] 585 |     globals: HashMap<ast::Ident, usize>,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `Command { std: "docker" "inspect" "d8a699e1c40752f1276690f62c9ad818323456c8827597758a683ca354e1971f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8a699e1c40752f1276690f62c9ad818323456c8827597758a683ca354e1971f", kill_on_drop: false }`
[INFO] [stdout] d8a699e1c40752f1276690f62c9ad818323456c8827597758a683ca354e1971f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ed552d28d5560ddc674f664c67e89e4741cb03c375ab2116213e70a0e4abbb1b
[INFO] running `Command { std: "docker" "start" "-a" "ed552d28d5560ddc674f664c67e89e4741cb03c375ab2116213e70a0e4abbb1b", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr] warning: unused import: `Instr::*`
[INFO] [stderr]     --> type-check/src/lib.rs:1004:9
[INFO] [stderr]      |
[INFO] [stderr] 1004 |     use Instr::*;
[INFO] [stderr]      |         ^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `instr`
[INFO] [stderr]     --> type-check/src/lib.rs:1006:9
[INFO] [stderr]      |
[INFO] [stderr] 1006 |     for instr in instrs {}
[INFO] [stderr]      |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_instr`
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `w`
[INFO] [stderr]     --> type-check/src/lib.rs:1002:9
[INFO] [stderr]      |
[INFO] [stderr] 1002 |     mut w: W,
[INFO] [stderr]      |         ^ help: if this is intentional, prefix it with an underscore: `_w`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]     --> type-check/src/lib.rs:1002:5
[INFO] [stderr]      |
[INFO] [stderr] 1002 |     mut w: W,
[INFO] [stderr]      |     ----^
[INFO] [stderr]      |     |
[INFO] [stderr]      |     help: remove this `mut`
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `frame` and `code` are never read
[INFO] [stderr]    --> type-check/src/lib.rs:527:5
[INFO] [stderr]     |
[INFO] [stderr] 526 | pub struct Function {
[INFO] [stderr]     |            -------- fields in this struct
[INFO] [stderr] 527 |     frame: Frame,
[INFO] [stderr]     |     ^^^^^
[INFO] [stderr] 528 |     code: Vec<Instr>,
[INFO] [stderr]     |     ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `Function` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `globals` is never read
[INFO] [stderr]    --> type-check/src/lib.rs:585:5
[INFO] [stderr]     |
[INFO] [stderr] 584 | pub struct Codegen {
[INFO] [stderr]     |            ------- field in this struct
[INFO] [stderr] 585 |     globals: HashMap<ast::Ident, usize>,
[INFO] [stderr]     |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `frame` is never read
[INFO] [stderr]    --> type-check/src/lib.rs:527:5
[INFO] [stderr]     |
[INFO] [stderr] 526 | pub struct Function {
[INFO] [stderr]     |            -------- field in this struct
[INFO] [stderr] 527 |     frame: Frame,
[INFO] [stderr]     |     ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `Function` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `type-check` (lib) generated 6 warnings (run `cargo fix --lib -p type-check` to apply 4 suggestions)
[INFO] [stderr] warning: `type-check` (lib test) generated 6 warnings (5 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/ast-541fc374e6dbff09)
[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] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/parser-fa0efc628da7b58d)
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test test::call ... ok
[INFO] [stdout] test test::bit_ops ... ok
[INFO] [stdout] test test::boolean_ops ... ok
[INFO] [stdout] test test::compare_ops ... ok
[INFO] [stdout] test test::const_decl ... ok
[INFO] [stdout] test test::fn_decl ... ok
[INFO] [stdout] test test::idents ... ok
[INFO] [stdout] test test::if_match ... ok
[INFO] [stdout] test test::math_ops ... ok
[INFO] [stdout] test test::numbers ... ok
[INFO] [stdout] test test::pseudo_numbers ... ok
[INFO] [stdout] test test::type_def ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/type_check-e8b6174d8118d91a)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test::add1 ... ok
[INFO] [stdout] test test::fib ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- test::fib stdout ----
[INFO] [stdout] [type-check/src/lib.rs:846] &self.curr_frame = Frame {
[INFO] [stdout]     locals: [
[INFO] [stdout]         Ident(
[INFO] [stdout]             "n",
[INFO] [stdout]         ),
[INFO] [stdout]     ],
[INFO] [stdout] }
[INFO] [stdout] [type-check/src/lib.rs:849] &expr.ident = Ident(
[INFO] [stdout]     "n",
[INFO] [stdout] )
[INFO] [stdout] [type-check/src/lib.rs:846] &self.curr_frame = Frame {
[INFO] [stdout]     locals: [
[INFO] [stdout]         Ident(
[INFO] [stdout]             "n",
[INFO] [stdout]         ),
[INFO] [stdout]         Ident(
[INFO] [stdout]             "n1",
[INFO] [stdout]         ),
[INFO] [stdout]     ],
[INFO] [stdout] }
[INFO] [stdout] [type-check/src/lib.rs:849] &expr.ident = Ident(
[INFO] [stdout]     "n1",
[INFO] [stdout] )
[INFO] [stdout] [type-check/src/lib.rs:846] &self.curr_frame = Frame {
[INFO] [stdout]     locals: [
[INFO] [stdout]         Ident(
[INFO] [stdout]             "n",
[INFO] [stdout]         ),
[INFO] [stdout]         Ident(
[INFO] [stdout]             "n1",
[INFO] [stdout]         ),
[INFO] [stdout]     ],
[INFO] [stdout] }
[INFO] [stdout] [type-check/src/lib.rs:849] &expr.ident = Ident(
[INFO] [stdout]     "fib",
[INFO] [stdout] )
[INFO] [stdout] thread 'test::fib' panicked at type-check/src/lib.rs:850:14:
[INFO] [stdout] type checking should catch this
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x561e0f88994c - std::backtrace_rs::backtrace::libunwind::trace::ha637c64ce894333a
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5
[INFO] [stdout]    1:     0x561e0f88994c - std::backtrace_rs::backtrace::trace_unsynchronized::h47f62dea28e0c88d
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x561e0f88994c - std::sys_common::backtrace::_print_fmt::h9eef0abe20ede486
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stdout]    3:     0x561e0f88994c - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hed7f999df88cc644
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stdout]    4:     0x561e0f8b38a0 - core::fmt::rt::Argument::fmt::h1539a9308b8d058d
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/fmt/rt.rs:142:9
[INFO] [stdout]    5:     0x561e0f8b38a0 - core::fmt::write::h3a39390d8560d9c9
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/fmt/mod.rs:1120:17
[INFO] [stdout]    6:     0x561e0f8872ff - std::io::Write::write_fmt::h040b369f3a0f9cbc
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/io/mod.rs:1762:15
[INFO] [stdout]    7:     0x561e0f889734 - std::sys_common::backtrace::_print::h894006fb5c6f3d45
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stdout]    8:     0x561e0f889734 - std::sys_common::backtrace::print::h23a2d212c6fff936
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stdout]    9:     0x561e0f88b3f7 - std::panicking::default_hook::{{closure}}::h8a1d2ee00185001a
[INFO] [stdout]   10:     0x561e0f88b0e3 - std::panicking::default_hook::h6038f2eba384e475
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:289:9
[INFO] [stdout]   11:     0x561e0f859b67 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h0ad024c9bdc6d768
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/alloc/src/boxed.rs:2021:9
[INFO] [stdout]   12:     0x561e0f859b67 - test::test_main::{{closure}}::h7500b54257359db6
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:138:21
[INFO] [stdout]   13:     0x561e0f88ba08 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h1f8f335eaa9cfaee
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/alloc/src/boxed.rs:2021:9
[INFO] [stdout]   14:     0x561e0f88ba08 - std::panicking::rust_panic_with_hook::h2b5517d590cab22e
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:783:13
[INFO] [stdout]   15:     0x561e0f88b75e - std::panicking::begin_panic_handler::{{closure}}::h233112c06e0ef43e
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:657:13
[INFO] [stdout]   16:     0x561e0f889e16 - std::sys_common::backtrace::__rust_end_short_backtrace::h6e893f24d7ebbff8
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:170:18
[INFO] [stdout]   17:     0x561e0f88b4c2 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:645:5
[INFO] [stdout]   18:     0x561e0f7e0cf5 - core::panicking::panic_fmt::hbf0e066aabfa482c
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/panicking.rs:72:14
[INFO] [stdout]   19:     0x561e0f7e0cb3 - core::panicking::panic_display::h68e6012a1c287ca5
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/panicking.rs:178:5
[INFO] [stdout]   20:     0x561e0f7e0cb3 - core::panicking::panic_str::h1ca8e3b0d2d70f80
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/panicking.rs:152:5
[INFO] [stdout]   21:     0x561e0f7e0cb3 - core::option::expect_failed::h1ae4bac6b7606972
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/option.rs:1985:5
[INFO] [stdout]   22:     0x561e0f8182e7 - core::option::Option<T>::expect::haff23f8151f564c0
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/option.rs:894:21
[INFO] [stdout]   23:     0x561e0f7f92c3 - type_check::Codegen::codegen_ref_expr::h96a7a1149dd72f2e
[INFO] [stdout]                                at /opt/rustwide/workdir/type-check/src/lib.rs:847:19
[INFO] [stdout]   24:     0x561e0f7f64f7 - type_check::Codegen::codegen_expr::h025796a9605a363b
[INFO] [stdout]                                at /opt/rustwide/workdir/type-check/src/lib.rs:640:41
[INFO] [stdout]   25:     0x561e0f7f8aae - type_check::Codegen::codegen_call_expr::h1851778aa0ba9b74
[INFO] [stdout]                                at /opt/rustwide/workdir/type-check/src/lib.rs:822:9
[INFO] [stdout]   26:     0x561e0f7f64ab - type_check::Codegen::codegen_expr::h025796a9605a363b
[INFO] [stdout]                                at /opt/rustwide/workdir/type-check/src/lib.rs:638:42
[INFO] [stdout]   27:     0x561e0f7f95bf - type_check::Codegen::codegen_bin_expr::h163e3a42866acae3
[INFO] [stdout]                                at /opt/rustwide/workdir/type-check/src/lib.rs:868:9
[INFO] [stdout]   28:     0x561e0f7f6543 - type_check::Codegen::codegen_expr::h025796a9605a363b
[INFO] [stdout]                                at /opt/rustwide/workdir/type-check/src/lib.rs:642:41
[INFO] [stdout]   29:     0x561e0f7f7d7f - type_check::Codegen::codegen_match_expr::hbf3c0e2fb1c44988
[INFO] [stdout]                                at /opt/rustwide/workdir/type-check/src/lib.rs:779:25
[INFO] [stdout]   30:     0x561e0f7f6485 - type_check::Codegen::codegen_expr::h025796a9605a363b
[INFO] [stdout]                                at /opt/rustwide/workdir/type-check/src/lib.rs:637:43
[INFO] [stdout]   31:     0x561e0f7f6d47 - type_check::Codegen::codegen_stmt::he499760e53dc4a08
[INFO] [stdout]                                at /opt/rustwide/workdir/type-check/src/lib.rs:694:17
[INFO] [stdout]   32:     0x561e0f7f6b7a - type_check::Codegen::codegen_block_expr::hb0f6eaefa90cfedc
[INFO] [stdout]                                at /opt/rustwide/workdir/type-check/src/lib.rs:677:13
[INFO] [stdout]   33:     0x561e0f7f6712 - type_check::Codegen::codegen_fn_expr::heea6c914b8c80ef4
[INFO] [stdout]                                at /opt/rustwide/workdir/type-check/src/lib.rs:660:9
[INFO] [stdout]   34:     0x561e0f7f6413 - type_check::Codegen::codegen_expr::h025796a9605a363b
[INFO] [stdout]                                at /opt/rustwide/workdir/type-check/src/lib.rs:634:40
[INFO] [stdout]   35:     0x561e0f7f6cf5 - type_check::Codegen::codegen_stmt::he499760e53dc4a08
[INFO] [stdout]                                at /opt/rustwide/workdir/type-check/src/lib.rs:689:17
[INFO] [stdout]   36:     0x561e0f80df9a - type_check::test::fib::h1f7fbac51f870c39
[INFO] [stdout]                                at /opt/rustwide/workdir/type-check/src/lib.rs:1403:19
[INFO] [stdout]   37:     0x561e0f80bb27 - type_check::test::fib::{{closure}}::hdbcab2513a67b08b
[INFO] [stdout]                                at /opt/rustwide/workdir/type-check/src/lib.rs:1263:17
[INFO] [stdout]   38:     0x561e0f811756 - core::ops::function::FnOnce::call_once::h78e01060ca7263cd
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   39:     0x561e0f85f1bf - core::ops::function::FnOnce::call_once::h2b5d431d5046312d
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   40:     0x561e0f85f1bf - test::__rust_begin_short_backtrace::h7714669af176e207
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:628:18
[INFO] [stdout]   41:     0x561e0f85e1d5 - test::run_test_in_process::{{closure}}::h85218797dcbcec12
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:651:60
[INFO] [stdout]   42:     0x561e0f85e1d5 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h76c106ea31c14d7b
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   43:     0x561e0f85e1d5 - std::panicking::try::do_call::h3bd5d0f6620ee946
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:552:40
[INFO] [stdout]   44:     0x561e0f85e1d5 - std::panicking::try::h232e535e4744fe31
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:516:19
[INFO] [stdout]   45:     0x561e0f85e1d5 - std::panic::catch_unwind::h3ce3bd6ca8dbac68
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panic.rs:142:14
[INFO] [stdout]   46:     0x561e0f85e1d5 - test::run_test_in_process::hc97b257c9621286a
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:651:27
[INFO] [stdout]   47:     0x561e0f85e1d5 - test::run_test::{{closure}}::h2aa798823a438d38
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:574:43
[INFO] [stdout]   48:     0x561e0f826496 - test::run_test::{{closure}}::h87d231c78fb59832
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:602:41
[INFO] [stdout]   49:     0x561e0f826496 - std::sys_common::backtrace::__rust_begin_short_backtrace::he6df152596625789
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:154:18
[INFO] [stdout]   50:     0x561e0f82b547 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::ha94be15d1e0acf36
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/thread/mod.rs:529:17
[INFO] [stdout]   51:     0x561e0f82b547 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h9dc6bd6372f16606
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   52:     0x561e0f82b547 - std::panicking::try::do_call::h9057517f80303cd4
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:552:40
[INFO] [stdout]   53:     0x561e0f82b547 - std::panicking::try::he3a30b11ee45340c
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:516:19
[INFO] [stdout]   54:     0x561e0f82b547 - std::panic::catch_unwind::h410458cfd3528b8b
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panic.rs:142:14
[INFO] [stdout]   55:     0x561e0f82b547 - std::thread::Builder::spawn_unchecked_::{{closure}}::h72ac3bdb567b737b
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/thread/mod.rs:528:30
[INFO] [stdout]   56:     0x561e0f82b547 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h38f34da3654a8344
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   57:     0x561e0f890495 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hc7eafaff61e32df9
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/alloc/src/boxed.rs:2007:9
[INFO] [stdout]   58:     0x561e0f890495 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h6ba4a5de48dd2304
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/alloc/src/boxed.rs:2007:9
[INFO] [stdout]   59:     0x561e0f890495 - std::sys::unix::thread::Thread::new::thread_start::he469335aef763e45
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys/unix/thread.rs:108:17
[INFO] [stdout]   60:     0x7fb30e37aac3 - <unknown>
[INFO] [stdout]   61:     0x7fb30e40bbf4 - __clone
[INFO] [stdout]   62:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     test::fib
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 1 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `-p type-check --lib`
[INFO] running `Command { std: "docker" "inspect" "ed552d28d5560ddc674f664c67e89e4741cb03c375ab2116213e70a0e4abbb1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed552d28d5560ddc674f664c67e89e4741cb03c375ab2116213e70a0e4abbb1b", kill_on_drop: false }`
[INFO] [stdout] ed552d28d5560ddc674f664c67e89e4741cb03c375ab2116213e70a0e4abbb1b
