[INFO] cloning repository https://github.com/rahff/roman_number_converter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rahff/roman_number_converter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frahff%2Froman_number_converter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frahff%2Froman_number_converter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 656734670c0c2b7de5b70072a9ed169d50256d91
[INFO] testing rahff/roman_number_converter against try#ed7f3d77595b4831fdf085f2529aa13b5b51ff7d for pr-134530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frahff%2Froman_number_converter" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rahff/roman_number_converter on toolchain ed7f3d77595b4831fdf085f2529aa13b5b51ff7d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rahff/roman_number_converter
[INFO] finished tweaking git repo https://github.com/rahff/roman_number_converter
[INFO] tweaked toml for git repo https://github.com/rahff/roman_number_converter written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/rahff/roman_number_converter 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" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0e39afd3375119eeac5f1fa92d1bdb08415539cfaa4ea1f32cf2b18f6bca302d
[INFO] running `Command { std: "docker" "start" "-a" "0e39afd3375119eeac5f1fa92d1bdb08415539cfaa4ea1f32cf2b18f6bca302d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0e39afd3375119eeac5f1fa92d1bdb08415539cfaa4ea1f32cf2b18f6bca302d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e39afd3375119eeac5f1fa92d1bdb08415539cfaa4ea1f32cf2b18f6bca302d", kill_on_drop: false }`
[INFO] [stdout] 0e39afd3375119eeac5f1fa92d1bdb08415539cfaa4ea1f32cf2b18f6bca302d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 388a8458d127a4833a44d3ae309daa88b9f8d51a481e7a7e065538f089492a80
[INFO] running `Command { std: "docker" "start" "-a" "388a8458d127a4833a44d3ae309daa88b9f8d51a481e7a7e065538f089492a80", kill_on_drop: false }`
[INFO] [stderr]    Compiling matches v0.1.10
[INFO] [stderr]    Compiling roman_converter_algorithm v0.1.0 (/opt/rustwide/workdir/roman_converter_algorithm)
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> roman_converter_algorithm/src/lib.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |     for i in 0..subtracted_values  {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling Roman_Number_Coverter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `roman_converter_algorithm::ConverterUseCase`
[INFO] [stdout]  --> src/program.rs:1:33
[INFO] [stdout]   |
[INFO] [stdout] 1 | use roman_converter_algorithm::{ConverterUseCase, RomanConverter};
[INFO] [stdout]   |                                 ^^^^^^^^^^^^^^^^ no `ConverterUseCase` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `roman_converter_algorithm::ConverterUseCase`
[INFO] [stdout]  --> src/screen.rs:3:37
[INFO] [stdout]   |
[INFO] [stdout] 3 |     use roman_converter_algorithm::{ConverterUseCase, RomanConverter};
[INFO] [stdout]   |                                     ^^^^^^^^^^^^^^^^ no `ConverterUseCase` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0603]: function `roman_to_integer` is private
[INFO] [stdout]   --> src/main.rs:4:51
[INFO] [stdout]    |
[INFO] [stdout] 4  | use roman_converter_algorithm::{apply_conversion, roman_to_integer};
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^^^^ private function
[INFO] [stdout]    |
[INFO] [stdout] note: the function `roman_to_integer` is defined here
[INFO] [stdout]   --> /opt/rustwide/workdir/roman_converter_algorithm/src/lib.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn roman_to_integer(roman: RomanExpression) -> u32 {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `RomanConverter`
[INFO] [stdout]  --> src/screen.rs:3:55
[INFO] [stdout]   |
[INFO] [stdout] 3 |     use roman_converter_algorithm::{ConverterUseCase, RomanConverter};
[INFO] [stdout]   |                                                       ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0603.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `Roman_Number_Coverter` (bin "Roman_Number_Coverter") due to 3 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "388a8458d127a4833a44d3ae309daa88b9f8d51a481e7a7e065538f089492a80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "388a8458d127a4833a44d3ae309daa88b9f8d51a481e7a7e065538f089492a80", kill_on_drop: false }`
[INFO] [stdout] 388a8458d127a4833a44d3ae309daa88b9f8d51a481e7a7e065538f089492a80