[INFO] cloning repository https://github.com/Nadai2010/StarknetEs-Starklings-Cairo-1
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Nadai2010/StarknetEs-Starklings-Cairo-1" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNadai2010%2FStarknetEs-Starklings-Cairo-1", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNadai2010%2FStarknetEs-Starklings-Cairo-1'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ff3c85be46d277c5684e37d302122fe1b7227962
[INFO] checking Nadai2010/StarknetEs-Starklings-Cairo-1 against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNadai2010%2FStarknetEs-Starklings-Cairo-1" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Nadai2010/StarknetEs-Starklings-Cairo-1
[INFO] finished tweaking git repo https://github.com/Nadai2010/StarknetEs-Starklings-Cairo-1
[INFO] tweaked toml for git repo https://github.com/Nadai2010/StarknetEs-Starklings-Cairo-1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Nadai2010/StarknetEs-Starklings-Cairo-1 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Nadai2010/StarknetEs-Starklings-Cairo-1 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Updating git repository `https://github.com/starkware-libs/cairo`
[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 59b15fa976807e3795c3e59d7857c685a810912a6f619e72677b8ba48eef7a56
[INFO] running `Command { std: "docker" "start" "-a" "59b15fa976807e3795c3e59d7857c685a810912a6f619e72677b8ba48eef7a56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "59b15fa976807e3795c3e59d7857c685a810912a6f619e72677b8ba48eef7a56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59b15fa976807e3795c3e59d7857c685a810912a6f619e72677b8ba48eef7a56", kill_on_drop: false }`
[INFO] [stdout] 59b15fa976807e3795c3e59d7857c685a810912a6f619e72677b8ba48eef7a56
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 03566873908bb264ec98e817b5cd78e42227c5eeaaa79553eecd5b88f704a2b5
[INFO] running `Command { std: "docker" "start" "-a" "03566873908bb264ec98e817b5cd78e42227c5eeaaa79553eecd5b88f704a2b5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.53
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[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:275:44
[INFO] [stdout]     |
[INFO] [stdout] 275 |             exercises.iter_mut().for_each(|mut ex| {
[INFO] [stdout]     |                                            ----^^
[INFO] [stdout]     |                                            |
[INFO] [stdout]     |                                            help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `temp_file` is never used
[INFO] [stdout]   --> src/exercise.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn temp_file() -> String {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ExerciseOutput` is never constructed
[INFO] [stdout]   --> src/exercise.rs:78:12
[INFO] [stdout]    |
[INFO] [stdout] 78 | pub struct ExerciseOutput {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FileHandle` is never constructed
[INFO] [stdout]   --> src/exercise.rs:85:8
[INFO] [stdout]    |
[INFO] [stdout] 85 | struct FileHandle;
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `clean` is never used
[INFO] [stdout]    --> src/exercise.rs:171:4
[INFO] [stdout]     |
[INFO] [stdout] 171 | fn clean() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/starklings_runner.rs:34:4
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn main() -> anyhow::Result<()> {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/starklings_tester.rs:66:4
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn main() -> anyhow::Result<()> {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:275:44
[INFO] [stdout]     |
[INFO] [stdout] 275 |             exercises.iter_mut().for_each(|mut ex| {
[INFO] [stdout]     |                                            ----^^
[INFO] [stdout]     |                                            |
[INFO] [stdout]     |                                            help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `temp_file` is never used
[INFO] [stdout]   --> src/exercise.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn temp_file() -> String {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ExerciseOutput` is never constructed
[INFO] [stdout]   --> src/exercise.rs:78:12
[INFO] [stdout]    |
[INFO] [stdout] 78 | pub struct ExerciseOutput {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FileHandle` is never constructed
[INFO] [stdout]   --> src/exercise.rs:85:8
[INFO] [stdout]    |
[INFO] [stdout] 85 | struct FileHandle;
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `clean` is never used
[INFO] [stdout]    --> src/exercise.rs:171:4
[INFO] [stdout]     |
[INFO] [stdout] 171 | fn clean() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/starklings_runner.rs:34:4
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn main() -> anyhow::Result<()> {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/starklings_tester.rs:66:4
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn main() -> anyhow::Result<()> {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2m 39s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: lalrpop v0.19.8
[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" "03566873908bb264ec98e817b5cd78e42227c5eeaaa79553eecd5b88f704a2b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03566873908bb264ec98e817b5cd78e42227c5eeaaa79553eecd5b88f704a2b5", kill_on_drop: false }`
[INFO] [stdout] 03566873908bb264ec98e817b5cd78e42227c5eeaaa79553eecd5b88f704a2b5
