[INFO] cloning repository https://github.com/mmetzger2385/rust-tutorial [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mmetzger2385/rust-tutorial" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmmetzger2385%2Frust-tutorial", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmmetzger2385%2Frust-tutorial'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] fe337b8125c5afd72c4ea3b5d6b100664ecdc5ee [INFO] checking mmetzger2385/rust-tutorial against try#575650af7d7ca88602df28e39d27bf3e456c306e for pr-80579 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmmetzger2385%2Frust-tutorial" "/workspace/builds/worker-0/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/mmetzger2385/rust-tutorial on toolchain 575650af7d7ca88602df28e39d27bf3e456c306e [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/mmetzger2385/rust-tutorial [INFO] finished tweaking git repo https://github.com/mmetzger2385/rust-tutorial [INFO] tweaked toml for git repo https://github.com/mmetzger2385/rust-tutorial written to /workspace/builds/worker-0/source/Cargo.toml [INFO] crate git repo https://github.com/mmetzger2385/rust-tutorial already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 7f3eb1249c83be25ccd5cf3b9bcbc8a4a22675de5423ec3cd3c2515939ce2afa [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" "7f3eb1249c83be25ccd5cf3b9bcbc8a4a22675de5423ec3cd3c2515939ce2afa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7f3eb1249c83be25ccd5cf3b9bcbc8a4a22675de5423ec3cd3c2515939ce2afa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7f3eb1249c83be25ccd5cf3b9bcbc8a4a22675de5423ec3cd3c2515939ce2afa", kill_on_drop: false }` [INFO] [stdout] 7f3eb1249c83be25ccd5cf3b9bcbc8a4a22675de5423ec3cd3c2515939ce2afa [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1eaab260b09b9a7012c7d98b783948d8973b13cf5b1ba45df081c9a1547a3e20 [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" "1eaab260b09b9a7012c7d98b783948d8973b13cf5b1ba45df081c9a1547a3e20", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling getrandom v0.1.15 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking tutorial v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `low` [INFO] [stdout] --> src/main.rs:24:10 [INFO] [stdout] | [INFO] [stdout] 24 | let (low, medium, high) = guess_count; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_low` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `medium` [INFO] [stdout] --> src/main.rs:24:15 [INFO] [stdout] | [INFO] [stdout] 24 | let (low, medium, high) = guess_count; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_medium` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `high` [INFO] [stdout] --> src/main.rs:24:23 [INFO] [stdout] | [INFO] [stdout] 24 | let (low, medium, high) = guess_count; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_high` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `low_guess` [INFO] [stdout] --> src/main.rs:27:9 [INFO] [stdout] | [INFO] [stdout] 27 | let low_guess = guess_count.0; [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_low_guess` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `medium_guess` [INFO] [stdout] --> src/main.rs:28:9 [INFO] [stdout] | [INFO] [stdout] 28 | let medium_guess = guess_count.1; [INFO] [stdout] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_medium_guess` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `high_guess` [INFO] [stdout] --> src/main.rs:29:9 [INFO] [stdout] | [INFO] [stdout] 29 | let high_guess = guess_count.2; [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_high_guess` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `low` [INFO] [stdout] --> src/main.rs:95:10 [INFO] [stdout] | [INFO] [stdout] 95 | let (low, medium, high) = guess_count; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_low` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `medium` [INFO] [stdout] --> src/main.rs:95:15 [INFO] [stdout] | [INFO] [stdout] 95 | let (low, medium, high) = guess_count; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_medium` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `high` [INFO] [stdout] --> src/main.rs:95:23 [INFO] [stdout] | [INFO] [stdout] 95 | let (low, medium, high) = guess_count; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_high` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `low_guess` [INFO] [stdout] --> src/main.rs:98:9 [INFO] [stdout] | [INFO] [stdout] 98 | let low_guess = guess_count.0; [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_low_guess` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `medium_guess` [INFO] [stdout] --> src/main.rs:99:9 [INFO] [stdout] | [INFO] [stdout] 99 | let medium_guess = guess_count.1; [INFO] [stdout] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_medium_guess` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `high_guess` [INFO] [stdout] --> src/main.rs:100:9 [INFO] [stdout] | [INFO] [stdout] 100 | let high_guess = guess_count.2; [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_high_guess` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `count` [INFO] [stdout] --> src/main.rs:84:22 [INFO] [stdout] | [INFO] [stdout] 84 | fn interpret_results(count: i32){ [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_count` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `low` [INFO] [stdout] --> src/main.rs:24:10 [INFO] [stdout] | [INFO] [stdout] 24 | let (low, medium, high) = guess_count; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_low` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `medium` [INFO] [stdout] --> src/main.rs:24:15 [INFO] [stdout] | [INFO] [stdout] 24 | let (low, medium, high) = guess_count; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_medium` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `high` [INFO] [stdout] --> src/main.rs:24:23 [INFO] [stdout] | [INFO] [stdout] 24 | let (low, medium, high) = guess_count; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_high` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `low_guess` [INFO] [stdout] --> src/main.rs:27:9 [INFO] [stdout] | [INFO] [stdout] 27 | let low_guess = guess_count.0; [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_low_guess` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `medium_guess` [INFO] [stdout] --> src/main.rs:28:9 [INFO] [stdout] | [INFO] [stdout] 28 | let medium_guess = guess_count.1; [INFO] [stdout] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_medium_guess` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `high_guess` [INFO] [stdout] --> src/main.rs:29:9 [INFO] [stdout] | [INFO] [stdout] 29 | let high_guess = guess_count.2; [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_high_guess` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `low` [INFO] [stdout] --> src/main.rs:95:10 [INFO] [stdout] | [INFO] [stdout] 95 | let (low, medium, high) = guess_count; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_low` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `medium` [INFO] [stdout] --> src/main.rs:95:15 [INFO] [stdout] | [INFO] [stdout] 95 | let (low, medium, high) = guess_count; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_medium` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `high` [INFO] [stdout] --> src/main.rs:95:23 [INFO] [stdout] | [INFO] [stdout] 95 | let (low, medium, high) = guess_count; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_high` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `low_guess` [INFO] [stdout] --> src/main.rs:98:9 [INFO] [stdout] | [INFO] [stdout] 98 | let low_guess = guess_count.0; [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_low_guess` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `medium_guess` [INFO] [stdout] --> src/main.rs:99:9 [INFO] [stdout] | [INFO] [stdout] 99 | let medium_guess = guess_count.1; [INFO] [stdout] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_medium_guess` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `high_guess` [INFO] [stdout] --> src/main.rs:100:9 [INFO] [stdout] | [INFO] [stdout] 100 | let high_guess = guess_count.2; [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_high_guess` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `count` [INFO] [stdout] --> src/main.rs:84:22 [INFO] [stdout] | [INFO] [stdout] 84 | fn interpret_results(count: i32){ [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_count` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 13 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 5.96s [INFO] [stdout] warning: 13 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "1eaab260b09b9a7012c7d98b783948d8973b13cf5b1ba45df081c9a1547a3e20", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1eaab260b09b9a7012c7d98b783948d8973b13cf5b1ba45df081c9a1547a3e20", kill_on_drop: false }` [INFO] [stdout] 1eaab260b09b9a7012c7d98b783948d8973b13cf5b1ba45df081c9a1547a3e20