[INFO] cloning repository https://github.com/garetht/rust-exercise-gen
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/garetht/rust-exercise-gen" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgaretht%2Frust-exercise-gen", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgaretht%2Frust-exercise-gen'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5520ce157c51854af8860ffa76f193198234f821
[INFO] checking garetht/rust-exercise-gen/5520ce157c51854af8860ffa76f193198234f821 against master#c9af9c1dc85a55e309345030ff9cb7ea247953fa for pr-151146
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgaretht%2Frust-exercise-gen" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/garetht/rust-exercise-gen
[INFO] finished tweaking git repo https://github.com/garetht/rust-exercise-gen
[INFO] tweaked toml for git repo https://github.com/garetht/rust-exercise-gen written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/garetht/rust-exercise-gen on toolchain c9af9c1dc85a55e309345030ff9cb7ea247953fa
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c9af9c1dc85a55e309345030ff9cb7ea247953fa" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/garetht/rust-exercise-gen 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" "+c9af9c1dc85a55e309345030ff9cb7ea247953fa" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded protoc-bin-vendored v3.1.0
[INFO] [stderr]   Downloaded dummy v0.9.1
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[INFO] [stderr]   Downloaded protoc-bin-vendored-linux-ppcle_64 v3.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+c9af9c1dc85a55e309345030ff9cb7ea247953fa" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4df9fc55f0b4527666667c2ed980e13467bc46fc89f18319cc6dd78912015883
[INFO] running `Command { std: "docker" "start" "-a" "4df9fc55f0b4527666667c2ed980e13467bc46fc89f18319cc6dd78912015883", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4df9fc55f0b4527666667c2ed980e13467bc46fc89f18319cc6dd78912015883", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4df9fc55f0b4527666667c2ed980e13467bc46fc89f18319cc6dd78912015883", kill_on_drop: false }`
[INFO] [stdout] 4df9fc55f0b4527666667c2ed980e13467bc46fc89f18319cc6dd78912015883
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+c9af9c1dc85a55e309345030ff9cb7ea247953fa" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9a426db57f2c5ab7af702ed13154ef323af98b66ef2694e2256b5ebfdbae5b1f
[INFO] running `Command { std: "docker" "start" "-a" "9a426db57f2c5ab7af702ed13154ef323af98b66ef2694e2256b5ebfdbae5b1f", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustix v0.38.43
[INFO] [stderr]    Compiling protobuf v3.7.1
[INFO] [stderr]    Compiling bitflags v2.7.0
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling indexmap v2.7.0
[INFO] [stderr]    Compiling anyhow v1.0.95
[INFO] [stderr]    Compiling protoc-bin-vendored-linux-aarch_64 v3.1.0
[INFO] [stderr]    Compiling protoc-bin-vendored-macos-aarch_64 v3.1.0
[INFO] [stderr]    Compiling protoc-bin-vendored-linux-x86_32 v3.1.0
[INFO] [stderr]    Compiling protoc-bin-vendored-linux-x86_64 v3.1.0
[INFO] [stderr]    Compiling protoc-bin-vendored-win32 v3.1.0
[INFO] [stderr]    Compiling protoc-bin-vendored-linux-ppcle_64 v3.1.0
[INFO] [stderr]    Compiling protoc-bin-vendored-macos-x86_64 v3.1.0
[INFO] [stderr]    Compiling serde_json v1.0.135
[INFO] [stderr]    Compiling protoc-bin-vendored v3.1.0
[INFO] [stderr]     Checking deunicode v1.6.0
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]    Compiling syn v2.0.96
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling which v4.4.2
[INFO] [stderr]    Compiling tempfile v3.15.0
[INFO] [stderr]    Compiling darling_core v0.20.10
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
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[INFO] [stderr]    Compiling serde_derive v1.0.217
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]    Compiling thiserror v1.0.69
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[INFO] [stderr]    Compiling darling_macro v0.20.10
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]    Compiling darling v0.20.10
[INFO] [stderr]    Compiling dummy v0.9.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking serde v1.0.217
[INFO] [stderr]     Checking fake v3.1.0
[INFO] [stderr]    Compiling protobuf-parse v3.7.1
[INFO] [stderr]    Compiling protobuf-codegen v3.7.1
[INFO] [stderr]    Compiling rust-exercise-gen v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::io::Result`
[INFO] [stdout]  --> build.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::Result;
[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: `value`
[INFO] [stdout]   --> src/exercise_assembly.rs:45:36
[INFO] [stdout]    |
[INFO] [stdout] 45 |     programs_by_error.retain(|key, value| {
[INFO] [stdout]    |                                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Write` is never constructed
[INFO] [stdout]   --> src/program_state.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub enum ExecutionSkeleton {
[INFO] [stdout]    |          ----------------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 31 |     Write, // i.e. a push to an array, or assigning something?
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ExecutionSkeleton` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Position` is never used
[INFO] [stdout]   --> src/variable.rs:61:10
[INFO] [stdout]    |
[INFO] [stdout] 61 | pub enum Position {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `outline` and `seed` are never read
[INFO] [stdout]   --> src/exercise_assembly.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | struct OutputProgram {
[INFO] [stdout]    |        ------------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 25 |     outline: Vec<OutlineStatement>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     seed: u64,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `OutputProgram` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[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 |     generate_and_write_programs_to_file();
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let _ = generate_and_write_programs_to_file();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/exercise_assembly.rs:45:36
[INFO] [stdout]    |
[INFO] [stdout] 45 |     programs_by_error.retain(|key, value| {
[INFO] [stdout]    |                                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Write` is never constructed
[INFO] [stdout]   --> src/program_state.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub enum ExecutionSkeleton {
[INFO] [stdout]    |          ----------------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 31 |     Write, // i.e. a push to an array, or assigning something?
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ExecutionSkeleton` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Position` is never used
[INFO] [stdout]   --> src/variable.rs:61:10
[INFO] [stdout]    |
[INFO] [stdout] 61 | pub enum Position {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `outline` and `seed` are never read
[INFO] [stdout]   --> src/exercise_assembly.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | struct OutputProgram {
[INFO] [stdout]    |        ------------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 25 |     outline: Vec<OutlineStatement>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     seed: u64,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `OutputProgram` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[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 |     generate_and_write_programs_to_file();
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let _ = generate_and_write_programs_to_file();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.93s
[INFO] running `Command { std: "docker" "inspect" "9a426db57f2c5ab7af702ed13154ef323af98b66ef2694e2256b5ebfdbae5b1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a426db57f2c5ab7af702ed13154ef323af98b66ef2694e2256b5ebfdbae5b1f", kill_on_drop: false }`
[INFO] [stdout] 9a426db57f2c5ab7af702ed13154ef323af98b66ef2694e2256b5ebfdbae5b1f
