[INFO] cloning repository https://github.com/kimkyungjae1112/PracticeRust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kimkyungjae1112/PracticeRust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkimkyungjae1112%2FPracticeRust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkimkyungjae1112%2FPracticeRust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 12633e17d23cc242e6e2cb574932a6ca28c55e99 [INFO] checking kimkyungjae1112/PracticeRust against try#47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268 for pr-149058 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkimkyungjae1112%2FPracticeRust" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/kimkyungjae1112/PracticeRust [INFO] finished tweaking git repo https://github.com/kimkyungjae1112/PracticeRust [INFO] tweaked toml for git repo https://github.com/kimkyungjae1112/PracticeRust written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/kimkyungjae1112/PracticeRust on toolchain 47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/kimkyungjae1112/PracticeRust 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" "+47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268" "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 [ERROR] error running command: no output for 300 seconds [INFO] checking kimkyungjae1112/PracticeRust against try#47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268 for pr-149058 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkimkyungjae1112%2FPracticeRust" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/kimkyungjae1112/PracticeRust [INFO] finished tweaking git repo https://github.com/kimkyungjae1112/PracticeRust [INFO] tweaked toml for git repo https://github.com/kimkyungjae1112/PracticeRust written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/kimkyungjae1112/PracticeRust on toolchain 47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/kimkyungjae1112/PracticeRust 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" "+47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268" "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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 15202786d87ddfdd79cc432ec288a4ed28355d660a438cd06b5f8b2c8e11c2de [INFO] running `Command { std: "docker" "start" "-a" "15202786d87ddfdd79cc432ec288a4ed28355d660a438cd06b5f8b2c8e11c2de", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "15202786d87ddfdd79cc432ec288a4ed28355d660a438cd06b5f8b2c8e11c2de", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "15202786d87ddfdd79cc432ec288a4ed28355d660a438cd06b5f8b2c8e11c2de", kill_on_drop: false }` [INFO] [stdout] 15202786d87ddfdd79cc432ec288a4ed28355d660a438cd06b5f8b2c8e11c2de [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 535ca8df389412a1da3f21c08115af5c273f9f02b557dbd705031f8496b80b59 [INFO] running `Command { std: "docker" "start" "-a" "535ca8df389412a1da3f21c08115af5c273f9f02b557dbd705031f8496b80b59", kill_on_drop: false }` [INFO] [stderr] Checking test_rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `guess` [INFO] [stdout] --> src/main.rs:32:9 [INFO] [stdout] | [INFO] [stdout] 32 | let guess: u32 = "42".parse().expect("Not a number!"); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_guess` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `int32` [INFO] [stdout] --> src/main.rs:34:9 [INFO] [stdout] | [INFO] [stdout] 34 | let int32: i32 = 12; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_int32` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `xf` [INFO] [stdout] --> src/main.rs:35:9 [INFO] [stdout] | [INFO] [stdout] 35 | let xf = 2.0; // f64 [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_xf` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `yf` [INFO] [stdout] --> src/main.rs:36:9 [INFO] [stdout] | [INFO] [stdout] 36 | let yf: f32 = 3.0; // f32 [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_yf` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `t` [INFO] [stdout] --> src/main.rs:60:9 [INFO] [stdout] | [INFO] [stdout] 60 | let t = true; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_t` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `f` [INFO] [stdout] --> src/main.rs:61:9 [INFO] [stdout] | [INFO] [stdout] 61 | let f: bool = false; // with explicit type annotation [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_f` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c` [INFO] [stdout] --> src/main.rs:63:9 [INFO] [stdout] | [INFO] [stdout] 63 | let c = 'z'; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_c` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `z` [INFO] [stdout] --> src/main.rs:64:9 [INFO] [stdout] | [INFO] [stdout] 64 | let z: char = 'ℤ'; // with explicit type annotation [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_z` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `heart_eyed_cat` [INFO] [stdout] --> src/main.rs:65:9 [INFO] [stdout] | [INFO] [stdout] 65 | let heart_eyed_cat = '😻'; [INFO] [stdout] | ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_heart_eyed_cat` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/main.rs:68:10 [INFO] [stdout] | [INFO] [stdout] 68 | let (x, y, z) = tup; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `z` [INFO] [stdout] --> src/main.rs:68:16 [INFO] [stdout] | [INFO] [stdout] 68 | let (x, y, z) = tup; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_z` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `five_hundred` [INFO] [stdout] --> src/main.rs:71:9 [INFO] [stdout] | [INFO] [stdout] 71 | let five_hundred = tup.0; [INFO] [stdout] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_five_hundred` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `six_point_four` [INFO] [stdout] --> src/main.rs:72:9 [INFO] [stdout] | [INFO] [stdout] 72 | let six_point_four = tup.1; [INFO] [stdout] | ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_six_point_four` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `one` [INFO] [stdout] --> src/main.rs:73:9 [INFO] [stdout] | [INFO] [stdout] 73 | let one = tup.2; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_one` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `first` [INFO] [stdout] --> src/main.rs:78:9 [INFO] [stdout] | [INFO] [stdout] 78 | let first = a[0]; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_first` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `second` [INFO] [stdout] --> src/main.rs:79:9 [INFO] [stdout] | [INFO] [stdout] 79 | let second = a[1]; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_second` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `aa` [INFO] [stdout] --> src/main.rs:82:9 [INFO] [stdout] | [INFO] [stdout] 82 | let aa = [3; 5]; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_aa` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `guess` [INFO] [stdout] --> src/main.rs:32:9 [INFO] [stdout] | [INFO] [stdout] 32 | let guess: u32 = "42".parse().expect("Not a number!"); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_guess` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `int32` [INFO] [stdout] --> src/main.rs:34:9 [INFO] [stdout] | [INFO] [stdout] 34 | let int32: i32 = 12; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_int32` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `xf` [INFO] [stdout] --> src/main.rs:35:9 [INFO] [stdout] | [INFO] [stdout] 35 | let xf = 2.0; // f64 [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_xf` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `yf` [INFO] [stdout] --> src/main.rs:36:9 [INFO] [stdout] | [INFO] [stdout] 36 | let yf: f32 = 3.0; // f32 [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_yf` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `t` [INFO] [stdout] --> src/main.rs:60:9 [INFO] [stdout] | [INFO] [stdout] 60 | let t = true; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_t` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `f` [INFO] [stdout] --> src/main.rs:61:9 [INFO] [stdout] | [INFO] [stdout] 61 | let f: bool = false; // with explicit type annotation [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_f` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c` [INFO] [stdout] --> src/main.rs:63:9 [INFO] [stdout] | [INFO] [stdout] 63 | let c = 'z'; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_c` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `z` [INFO] [stdout] --> src/main.rs:64:9 [INFO] [stdout] | [INFO] [stdout] 64 | let z: char = 'ℤ'; // with explicit type annotation [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_z` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `heart_eyed_cat` [INFO] [stdout] --> src/main.rs:65:9 [INFO] [stdout] | [INFO] [stdout] 65 | let heart_eyed_cat = '😻'; [INFO] [stdout] | ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_heart_eyed_cat` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/main.rs:68:10 [INFO] [stdout] | [INFO] [stdout] 68 | let (x, y, z) = tup; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `z` [INFO] [stdout] --> src/main.rs:68:16 [INFO] [stdout] | [INFO] [stdout] 68 | let (x, y, z) = tup; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_z` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `five_hundred` [INFO] [stdout] --> src/main.rs:71:9 [INFO] [stdout] | [INFO] [stdout] 71 | let five_hundred = tup.0; [INFO] [stdout] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_five_hundred` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `six_point_four` [INFO] [stdout] --> src/main.rs:72:9 [INFO] [stdout] | [INFO] [stdout] 72 | let six_point_four = tup.1; [INFO] [stdout] | ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_six_point_four` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `one` [INFO] [stdout] --> src/main.rs:73:9 [INFO] [stdout] | [INFO] [stdout] 73 | let one = tup.2; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_one` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `first` [INFO] [stdout] --> src/main.rs:78:9 [INFO] [stdout] | [INFO] [stdout] 78 | let first = a[0]; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_first` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `second` [INFO] [stdout] --> src/main.rs:79:9 [INFO] [stdout] | [INFO] [stdout] 79 | let second = a[1]; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_second` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `aa` [INFO] [stdout] --> src/main.rs:82:9 [INFO] [stdout] | [INFO] [stdout] 82 | let aa = [3; 5]; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_aa` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.21s [INFO] running `Command { std: "docker" "inspect" "535ca8df389412a1da3f21c08115af5c273f9f02b557dbd705031f8496b80b59", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "535ca8df389412a1da3f21c08115af5c273f9f02b557dbd705031f8496b80b59", kill_on_drop: false }` [INFO] [stdout] 535ca8df389412a1da3f21c08115af5c273f9f02b557dbd705031f8496b80b59