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[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/faassen/aleven" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffaassen%2Faleven", kill_on_drop: false }`
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[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fe45cad08e5c3c36e47d2ecda1d94485bc71a8c2
[INFO] checking faassen/aleven against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffaassen%2Faleven" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/faassen/aleven on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/faassen/aleven
[INFO] finished tweaking git repo https://github.com/faassen/aleven
[INFO] tweaked toml for git repo https://github.com/faassen/aleven written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/faassen/aleven 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] warning: unused import: `std::ops::Rem`
[INFO] [stdout]  --> src/lang.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::Rem;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `PassManagerBuilder` and `PassManager`
[INFO] [stdout]   --> src/llvm.rs:14:23
[INFO] [stdout]    |
[INFO] [stdout] 14 | use inkwell::passes::{PassManager, PassManagerBuilder};
[INFO] [stdout]    |                       ^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `TargetTriple` and `Target`
[INFO] [stdout]   --> src/llvm.rs:15:24
[INFO] [stdout]    |
[INFO] [stdout] 15 | use inkwell::targets::{Target, TargetMachine, TargetTriple};
[INFO] [stdout]    |                        ^^^^^^                 ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Rem`
[INFO] [stdout]  --> src/lang.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::Rem;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `PassManagerBuilder` and `PassManager`
[INFO] [stdout]   --> src/llvm.rs:14:23
[INFO] [stdout]    |
[INFO] [stdout] 14 | use inkwell::passes::{PassManager, PassManagerBuilder};
[INFO] [stdout]    |                       ^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `TargetTriple` and `Target`
[INFO] [stdout]   --> src/llvm.rs:15:24
[INFO] [stdout]    |
[INFO] [stdout] 15 | use inkwell::targets::{Target, TargetMachine, TargetTriple};
[INFO] [stdout]    |                        ^^^^^^                 ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/llvm.rs:984:8
[INFO] [stdout]     |
[INFO] [stdout] 984 | pub fn main() -> Result<(), Box<dyn Error>> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `save_asm` is never used
[INFO] [stdout]  --> src/llvmasm.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn save_asm(module: &Module) {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/llvm.rs:984:8
[INFO] [stdout]     |
[INFO] [stdout] 984 | pub fn main() -> Result<(), Box<dyn Error>> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `save_asm` is never used
[INFO] [stdout]  --> src/llvmasm.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn save_asm(module: &Module) {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Rem`
[INFO] [stdout]  --> src/lang.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::Rem;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `PassManagerBuilder` and `PassManager`
[INFO] [stdout]   --> src/llvm.rs:14:23
[INFO] [stdout]    |
[INFO] [stdout] 14 | use inkwell::passes::{PassManager, PassManagerBuilder};
[INFO] [stdout]    |                       ^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `TargetTriple` and `Target`
[INFO] [stdout]   --> src/llvm.rs:15:24
[INFO] [stdout]    |
[INFO] [stdout] 15 | use inkwell::targets::{Target, TargetMachine, TargetTriple};
[INFO] [stdout]    |                        ^^^^^^                 ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Rem`
[INFO] [stdout]  --> src/lang.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::Rem;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `PassManagerBuilder` and `PassManager`
[INFO] [stdout]   --> src/llvm.rs:14:23
[INFO] [stdout]    |
[INFO] [stdout] 14 | use inkwell::passes::{PassManager, PassManagerBuilder};
[INFO] [stdout]    |                       ^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `TargetTriple` and `Target`
[INFO] [stdout]   --> src/llvm.rs:15:24
[INFO] [stdout]    |
[INFO] [stdout] 15 | use inkwell::targets::{Target, TargetMachine, TargetTriple};
[INFO] [stdout]    |                        ^^^^^^                 ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     llvm::main();
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let _ = llvm::main();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     llvm::main();
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let _ = llvm::main();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.72s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v6.1.2
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "7c19ea41222bd7e369c51ba752813655fe26d390ed084fbc5da7100265776d56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c19ea41222bd7e369c51ba752813655fe26d390ed084fbc5da7100265776d56", kill_on_drop: false }`
[INFO] [stdout] 7c19ea41222bd7e369c51ba752813655fe26d390ed084fbc5da7100265776d56