[INFO] fetching crate zust-vm 0.9.77...
[INFO] checking zust-vm-0.9.77 against try#21cad1f647cfd05a566220f933edd88a53e50bcf for pr-129249-1
[INFO] extracting crate zust-vm 0.9.77 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate zust-vm 0.9.77
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate zust-vm 0.9.77
[INFO] tweaked toml for crates.io crate zust-vm 0.9.77 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate zust-vm 0.9.77 on toolchain 21cad1f647cfd05a566220f933edd88a53e50bcf
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+21cad1f647cfd05a566220f933edd88a53e50bcf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate zust-vm 0.9.77 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" "+21cad1f647cfd05a566220f933edd88a53e50bcf" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:3e793bdf10248eb2ddbd6b0faebed8155c11b4589982e2893733958d93e8d540" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 8e02eab5c1c81bd954075ae0aa7a8b12eed9df9d5d0fd74bb5fdf65c8c02a366
[INFO] running `Command { std: "docker" "start" "8e02eab5c1c81bd954075ae0aa7a8b12eed9df9d5d0fd74bb5fdf65c8c02a366", 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" "8e02eab5c1c81bd954075ae0aa7a8b12eed9df9d5d0fd74bb5fdf65c8c02a366" "/opt/rustwide/cargo-home/bin/cargo" "+21cad1f647cfd05a566220f933edd88a53e50bcf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8e02eab5c1c81bd954075ae0aa7a8b12eed9df9d5d0fd74bb5fdf65c8c02a366", 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" "8e02eab5c1c81bd954075ae0aa7a8b12eed9df9d5d0fd74bb5fdf65c8c02a366" "/opt/rustwide/cargo-home/bin/cargo" "+21cad1f647cfd05a566220f933edd88a53e50bcf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stderr]     Checking zust-vm v0.9.77 (/opt/rustwide/workdir)
[INFO] [stdout] error: useless conversion to the same type: `LocalVar`
[INFO] [stdout]     --> src/rt.rs:1223:121
[INFO] [stdout]      |
[INFO] [stdout] 1223 | ...   if let Some(expr) = assign_expr { self.assign(ctx, &expr, result).map(|r| r.into()) } else { Ok(result.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: you can instead use the fully-qualified path `<LocalVar as Into<LocalVar>::into(val) to avoid triggering this lint
[INFO] [stdout]      = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `(cranelift::prelude::Value, dynamic::Type)`
[INFO] [stdout]     --> src/rt.rs:1516:53
[INFO] [stdout]      |
[INFO] [stdout] 1516 |                         let len = self.convert(ctx, len.into(), Type::I64)?;
[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: you can instead use the fully-qualified path `<(cranelift::prelude::Value, dynamic::Type) as Into<(cranelift::prelude::Value, dynamic::Type)>::into(val) to avoid triggering this lint
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `zust-vm` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: useless conversion to the same type: `LocalVar`
[INFO] [stdout]     --> src/rt.rs:1223:121
[INFO] [stdout]      |
[INFO] [stdout] 1223 | ...   if let Some(expr) = assign_expr { self.assign(ctx, &expr, result).map(|r| r.into()) } else { Ok(result.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: you can instead use the fully-qualified path `<LocalVar as Into<LocalVar>::into(val) to avoid triggering this lint
[INFO] [stdout]      = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `(cranelift::prelude::Value, dynamic::Type)`
[INFO] [stdout]     --> src/rt.rs:1516:53
[INFO] [stdout]      |
[INFO] [stdout] 1516 |                         let len = self.convert(ctx, len.into(), Type::I64)?;
[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: you can instead use the fully-qualified path `<(cranelift::prelude::Value, dynamic::Type) as Into<(cranelift::prelude::Value, dynamic::Type)>::into(val) to avoid triggering this lint
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `zust-vm` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "8e02eab5c1c81bd954075ae0aa7a8b12eed9df9d5d0fd74bb5fdf65c8c02a366", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e02eab5c1c81bd954075ae0aa7a8b12eed9df9d5d0fd74bb5fdf65c8c02a366", kill_on_drop: false }`
[INFO] [stdout] 8e02eab5c1c81bd954075ae0aa7a8b12eed9df9d5d0fd74bb5fdf65c8c02a366
