[INFO] cloning repository https://github.com/projectfinalaudio/ROMAN_NUMBER_GENERATOR
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/projectfinalaudio/ROMAN_NUMBER_GENERATOR" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprojectfinalaudio%2FROMAN_NUMBER_GENERATOR", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprojectfinalaudio%2FROMAN_NUMBER_GENERATOR'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7b17c8a29e5ded20496ac9c6cba8a408c3ff2350
[INFO] building projectfinalaudio/ROMAN_NUMBER_GENERATOR against master#44f415c1d617ebc7b931a243b7b321ef8a6ca47c for pr-142134-abi-ast-error
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprojectfinalaudio%2FROMAN_NUMBER_GENERATOR" "/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/projectfinalaudio/ROMAN_NUMBER_GENERATOR on toolchain 44f415c1d617ebc7b931a243b7b321ef8a6ca47c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/projectfinalaudio/ROMAN_NUMBER_GENERATOR
[INFO] finished tweaking git repo https://github.com/projectfinalaudio/ROMAN_NUMBER_GENERATOR
[INFO] tweaked toml for git repo https://github.com/projectfinalaudio/ROMAN_NUMBER_GENERATOR written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/projectfinalaudio/ROMAN_NUMBER_GENERATOR 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" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fe9d5d25770e25bb31d0dd46086013026ffe265e907ae499f49a86b230f1d212
[INFO] running `Command { std: "docker" "start" "-a" "fe9d5d25770e25bb31d0dd46086013026ffe265e907ae499f49a86b230f1d212", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fe9d5d25770e25bb31d0dd46086013026ffe265e907ae499f49a86b230f1d212", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe9d5d25770e25bb31d0dd46086013026ffe265e907ae499f49a86b230f1d212", kill_on_drop: false }`
[INFO] [stdout] fe9d5d25770e25bb31d0dd46086013026ffe265e907ae499f49a86b230f1d212
[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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 67e849a7f10930771633417095f757b8c6b3007c913f15d54b5fc04ee1f53fed
[INFO] running `Command { std: "docker" "start" "-a" "67e849a7f10930771633417095f757b8c6b3007c913f15d54b5fc04ee1f53fed", kill_on_drop: false }`
[INFO] [stderr]    Compiling app v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variants `IV`, `V`, `IX`, and `X` are never constructed
[INFO] [stdout]  --> src/modules/models.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub enum RomanNumbers {
[INFO] [stdout]   |          ------------ variants in this enum
[INFO] [stdout] 3 |     I = 1,
[INFO] [stdout] 4 |     IV = 4,
[INFO] [stdout]   |     ^^
[INFO] [stdout] 5 |     V = 5,
[INFO] [stdout]   |     ^
[INFO] [stdout] 6 |     IX = 9,
[INFO] [stdout]   |     ^^
[INFO] [stdout] 7 |     X = 10,
[INFO] [stdout]   |     ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `RomanNumbers` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `match_values` is never used
[INFO] [stdout]   --> src/modules/models.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl RomanNumbers {
[INFO] [stdout]    | ----------------- method in this implementation
[INFO] [stdout] 11 |     pub fn match_values(&self) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: couldn't create a temp dir: No space left on device (os error 28) at path "/opt/rustwide/target/debug/deps/rmetaY5dlbx"
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `app` (bin "app") due to 1 previous error; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "67e849a7f10930771633417095f757b8c6b3007c913f15d54b5fc04ee1f53fed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67e849a7f10930771633417095f757b8c6b3007c913f15d54b5fc04ee1f53fed", kill_on_drop: false }`
[INFO] [stdout] 67e849a7f10930771633417095f757b8c6b3007c913f15d54b5fc04ee1f53fed