[INFO] cloning repository https://github.com/rdbo/toy-lang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rdbo/toy-lang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frdbo%2Ftoy-lang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frdbo%2Ftoy-lang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f47dfe1605391b3298599ffe411c0cde02b63da1
[INFO] checking rdbo/toy-lang against a5689b034ad287112f709693384a37f1377eb9cc for pr-129249-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frdbo%2Ftoy-lang" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/rdbo/toy-lang
[INFO] finished tweaking git repo https://github.com/rdbo/toy-lang
[INFO] tweaked toml for git repo https://github.com/rdbo/toy-lang written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/rdbo/toy-lang on toolchain a5689b034ad287112f709693384a37f1377eb9cc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/rdbo/toy-lang 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" "+a5689b034ad287112f709693384a37f1377eb9cc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] cdf85c7d6474c7d121d7a79ad615a745afb6fdee2f47883c8abe18ac57de338c
[INFO] running `Command { std: "docker" "start" "cdf85c7d6474c7d121d7a79ad615a745afb6fdee2f47883c8abe18ac57de338c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cdf85c7d6474c7d121d7a79ad615a745afb6fdee2f47883c8abe18ac57de338c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "cdf85c7d6474c7d121d7a79ad615a745afb6fdee2f47883c8abe18ac57de338c" "/opt/rustwide/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cdf85c7d6474c7d121d7a79ad615a745afb6fdee2f47883c8abe18ac57de338c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "cdf85c7d6474c7d121d7a79ad615a745afb6fdee2f47883c8abe18ac57de338c" "/opt/rustwide/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling cranelift-srcgen v0.129.1
[INFO] [stderr]    Compiling libm v0.2.16
[INFO] [stderr]    Compiling wasmtime-internal-core v42.0.1
[INFO] [stderr]    Compiling cranelift-isle v0.129.1
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.129.1
[INFO] [stderr]    Compiling object v0.37.3
[INFO] [stderr]    Compiling target-lexicon v0.13.5
[INFO] [stderr]    Compiling memchr v2.8.0
[INFO] [stderr]     Checking arbitrary v1.4.2
[INFO] [stderr]     Checking indexmap v2.13.0
[INFO] [stderr]    Compiling cc v1.2.57
[INFO] [stderr]     Checking bumpalo v3.20.2
[INFO] [stderr]     Checking smallvec v1.15.1
[INFO] [stderr]     Checking rustc-hash v2.1.1
[INFO] [stderr]     Checking log v0.4.29
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]    Compiling anyhow v1.0.102
[INFO] [stderr]    Compiling libc v0.2.183
[INFO] [stderr]    Compiling crc32fast v1.5.0
[INFO] [stderr]    Compiling cranelift-assembler-x64-meta v0.129.1
[INFO] [stderr]     Checking unicode-ident v1.0.24
[INFO] [stderr]     Checking regalloc2 v0.13.5
[INFO] [stderr]     Checking gimli v0.33.0
[INFO] [stderr]     Checking cranelift-control v0.129.1
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.129.1
[INFO] [stderr]    Compiling stacker v0.1.23
[INFO] [stderr]    Compiling cranelift-assembler-x64 v0.129.1
[INFO] [stderr]     Checking cranelift-bitset v0.129.1
[INFO] [stderr]     Checking cranelift-entity v0.129.1
[INFO] [stderr]     Checking cranelift-bforest v0.129.1
[INFO] [stderr]    Compiling cranelift-codegen v0.129.1
[INFO] [stderr]    Compiling ar_archive_writer v0.5.1
[INFO] [stderr]    Compiling psm v0.1.30
[INFO] [stderr]     Checking chumsky v0.12.0
[INFO] [stderr]     Checking cranelift-frontend v0.129.1
[INFO] [stderr]     Checking cranelift-module v0.129.1
[INFO] [stderr]     Checking cranelift-object v0.129.1
[INFO] [stderr]     Checking cranelift v0.129.1
[INFO] [stderr]     Checking toy-lang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `cell::RefCell`
[INFO] [stdout]  --> src/main.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::{cell::RefCell, collections::HashMap, sync::Arc};
[INFO] [stdout]   |           ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `cell::RefCell`
[INFO] [stdout]  --> src/main.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::{cell::RefCell, collections::HashMap, sync::Arc};
[INFO] [stdout]   |           ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `decl_type`
[INFO] [stdout]    --> src/main.rs:312:21
[INFO] [stdout]     |
[INFO] [stdout] 312 |                 let decl_type = other.into_ir(&self.module);
[INFO] [stdout]     |                     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_decl_type`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FunctionCall` is never constructed
[INFO] [stdout]   --> src/main.rs:81:8
[INFO] [stdout]    |
[INFO] [stdout] 81 | struct FunctionCall {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `i64`
[INFO] [stdout]    --> src/main.rs:363:69
[INFO] [stdout]     |
[INFO] [stdout] 363 |             Expr::I32(i) => builder.ins().iconst::<i64>(types::I32, (i as i64).into()),
[INFO] [stdout]     |                                                                     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]     = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 363 -             Expr::I32(i) => builder.ins().iconst::<i64>(types::I32, (i as i64).into()),
[INFO] [stdout] 363 +             Expr::I32(i) => builder.ins().iconst::<i64>(types::I32, (i as i64)),
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 363 -             Expr::I32(i) => builder.ins().iconst::<i64>(types::I32, (i as i64).into()),
[INFO] [stdout] 363 +             Expr::I32(i) => builder.ins().iconst::<i64>(types::I32, <i64 as Into<_>>::into((i as i64))),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `toy-lang` (bin "toy-lang" test) due to 1 previous error; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused variable: `decl_type`
[INFO] [stdout]    --> src/main.rs:312:21
[INFO] [stdout]     |
[INFO] [stdout] 312 |                 let decl_type = other.into_ir(&self.module);
[INFO] [stdout]     |                     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_decl_type`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FunctionCall` is never constructed
[INFO] [stdout]   --> src/main.rs:81:8
[INFO] [stdout]    |
[INFO] [stdout] 81 | struct FunctionCall {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `i64`
[INFO] [stdout]    --> src/main.rs:363:69
[INFO] [stdout]     |
[INFO] [stdout] 363 |             Expr::I32(i) => builder.ins().iconst::<i64>(types::I32, (i as i64).into()),
[INFO] [stdout]     |                                                                     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]     = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 363 -             Expr::I32(i) => builder.ins().iconst::<i64>(types::I32, (i as i64).into()),
[INFO] [stdout] 363 +             Expr::I32(i) => builder.ins().iconst::<i64>(types::I32, (i as i64)),
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 363 -             Expr::I32(i) => builder.ins().iconst::<i64>(types::I32, (i as i64).into()),
[INFO] [stdout] 363 +             Expr::I32(i) => builder.ins().iconst::<i64>(types::I32, <i64 as Into<_>>::into((i as i64))),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `toy-lang` (bin "toy-lang") due to 1 previous error; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "cdf85c7d6474c7d121d7a79ad615a745afb6fdee2f47883c8abe18ac57de338c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdf85c7d6474c7d121d7a79ad615a745afb6fdee2f47883c8abe18ac57de338c", kill_on_drop: false }`
[INFO] [stdout] cdf85c7d6474c7d121d7a79ad615a745afb6fdee2f47883c8abe18ac57de338c
