[INFO] cloning repository https://github.com/hafifamudi/rust-guessing-game
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hafifamudi/rust-guessing-game" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhafifamudi%2Frust-guessing-game", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhafifamudi%2Frust-guessing-game'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3409d23c3f104fb8380e2b8c09e04e94b8724b2f
[INFO] checking hafifamudi/rust-guessing-game against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhafifamudi%2Frust-guessing-game" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hafifamudi/rust-guessing-game on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hafifamudi/rust-guessing-game
[INFO] finished tweaking git repo https://github.com/hafifamudi/rust-guessing-game
[INFO] tweaked toml for git repo https://github.com/hafifamudi/rust-guessing-game written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/hafifamudi/rust-guessing-game already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libc v0.2.88
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] aad612c40fba502df9d89bb275692b19f968f247869fd32e8fbb3e374139d92d
[INFO] running `Command { std: "docker" "start" "-a" "aad612c40fba502df9d89bb275692b19f968f247869fd32e8fbb3e374139d92d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aad612c40fba502df9d89bb275692b19f968f247869fd32e8fbb3e374139d92d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aad612c40fba502df9d89bb275692b19f968f247869fd32e8fbb3e374139d92d", kill_on_drop: false }`
[INFO] [stdout] aad612c40fba502df9d89bb275692b19f968f247869fd32e8fbb3e374139d92d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f3801c87ac948c56d052be8a44b6a7e7d5f46965942c7b752719c2167e0cc4d3
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f3801c87ac948c56d052be8a44b6a7e7d5f46965942c7b752719c2167e0cc4d3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.88
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking getrandom v0.2.2
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking hello_world v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/main.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 | /         /** 
[INFO] [stdout] 21 | |          *casting guess to int32 and using match 
[INFO] [stdout] 22 | |           expressing to repeat the program when error and
[INFO] [stdout] 23 | |           take the value if success to parse
[INFO] [stdout] 24 | |         */
[INFO] [stdout]    | |__________^
[INFO] [stdout] 25 | /         let guess: u32 = match guess.trim().parse() {
[INFO] [stdout] 26 | |             Ok(num) => num,
[INFO] [stdout] 27 | |             Err(_)  => continue,
[INFO] [stdout] 28 | |         };
[INFO] [stdout]    | |__________- rustdoc does not generate documentation for statements
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/main.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 | /         /** 
[INFO] [stdout] 21 | |          *casting guess to int32 and using match 
[INFO] [stdout] 22 | |           expressing to repeat the program when error and
[INFO] [stdout] 23 | |           take the value if success to parse
[INFO] [stdout] 24 | |         */
[INFO] [stdout]    | |__________^
[INFO] [stdout] 25 | /         let guess: u32 = match guess.trim().parse() {
[INFO] [stdout] 26 | |             Ok(num) => num,
[INFO] [stdout] 27 | |             Err(_)  => continue,
[INFO] [stdout] 28 | |         };
[INFO] [stdout]    | |__________- rustdoc does not generate documentation for statements
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.10s
[INFO] running `Command { std: "docker" "inspect" "f3801c87ac948c56d052be8a44b6a7e7d5f46965942c7b752719c2167e0cc4d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3801c87ac948c56d052be8a44b6a7e7d5f46965942c7b752719c2167e0cc4d3", kill_on_drop: false }`
[INFO] [stdout] f3801c87ac948c56d052be8a44b6a7e7d5f46965942c7b752719c2167e0cc4d3