[INFO] cloning repository https://github.com/AJTJ/rust_problems [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AJTJ/rust_problems" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAJTJ%2Frust_problems", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAJTJ%2Frust_problems'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 73d6adaabb628c17d152e69cb1422d57ef76b9db [INFO] testing AJTJ/rust_problems against beta-2022-04-10 for beta-1.61-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAJTJ%2Frust_problems" "/workspace/builds/worker-13/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/AJTJ/rust_problems on toolchain beta-2022-04-10 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/AJTJ/rust_problems [INFO] finished tweaking git repo https://github.com/AJTJ/rust_problems [INFO] tweaked toml for git repo https://github.com/AJTJ/rust_problems written to /workspace/builds/worker-13/source/Cargo.toml [INFO] crate git repo https://github.com/AJTJ/rust_problems already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "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] 8ef126b79ec23e2271c4b07fe0f5d441ac625b8126de477dd27c8c2dd7e74402 [INFO] running `Command { std: "docker" "start" "-a" "8ef126b79ec23e2271c4b07fe0f5d441ac625b8126de477dd27c8c2dd7e74402", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8ef126b79ec23e2271c4b07fe0f5d441ac625b8126de477dd27c8c2dd7e74402", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8ef126b79ec23e2271c4b07fe0f5d441ac625b8126de477dd27c8c2dd7e74402", kill_on_drop: false }` [INFO] [stdout] 8ef126b79ec23e2271c4b07fe0f5d441ac625b8126de477dd27c8c2dd7e74402 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c632a17cc4f34199569bf3e2ef59c9b39143c3c280699c50ac2ecb27f5d1cd63 [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" "c632a17cc4f34199569bf3e2ef59c9b39143c3c280699c50ac2ecb27f5d1cd63", kill_on_drop: false }` [INFO] [stderr] Compiling rust_problems v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `second_value` [INFO] [stdout] --> src/main.rs:6:17 [INFO] [stdout] | [INFO] [stdout] 6 | let mut second_value: Option = None; [INFO] [stdout] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_second_value` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/main.rs:8:14 [INFO] [stdout] | [INFO] [stdout] 8 | for (i, x) in nums.iter().enumerate() { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/main.rs:12:18 [INFO] [stdout] | [INFO] [stdout] 12 | for (i, y) in nums.iter().enumerate() { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:3:13 [INFO] [stdout] | [INFO] [stdout] 3 | let mut first_index: Option = None; [INFO] [stdout] | ----^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:6:13 [INFO] [stdout] | [INFO] [stdout] 6 | let mut second_value: Option = None; [INFO] [stdout] | ----^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.65s [INFO] running `Command { std: "docker" "inspect" "c632a17cc4f34199569bf3e2ef59c9b39143c3c280699c50ac2ecb27f5d1cd63", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c632a17cc4f34199569bf3e2ef59c9b39143c3c280699c50ac2ecb27f5d1cd63", kill_on_drop: false }` [INFO] [stdout] c632a17cc4f34199569bf3e2ef59c9b39143c3c280699c50ac2ecb27f5d1cd63 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", 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] 57927c61c53561258d350ee1d63c561f581a7970e7135c08b378a68c7fa99717 [INFO] running `Command { std: "docker" "start" "-a" "57927c61c53561258d350ee1d63c561f581a7970e7135c08b378a68c7fa99717", kill_on_drop: false }` [INFO] [stderr] Compiling rust_problems v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `second_value` [INFO] [stdout] --> src/main.rs:6:17 [INFO] [stdout] | [INFO] [stdout] 6 | let mut second_value: Option = None; [INFO] [stdout] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_second_value` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/main.rs:8:14 [INFO] [stdout] | [INFO] [stdout] 8 | for (i, x) in nums.iter().enumerate() { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/main.rs:12:18 [INFO] [stdout] | [INFO] [stdout] 12 | for (i, y) in nums.iter().enumerate() { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:3:13 [INFO] [stdout] | [INFO] [stdout] 3 | let mut first_index: Option = None; [INFO] [stdout] | ----^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:6:13 [INFO] [stdout] | [INFO] [stdout] 6 | let mut second_value: Option = None; [INFO] [stdout] | ----^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.00s [INFO] [stderr] Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_problems-46a5637a8af61b2d) [INFO] running `Command { std: "docker" "inspect" "57927c61c53561258d350ee1d63c561f581a7970e7135c08b378a68c7fa99717", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "57927c61c53561258d350ee1d63c561f581a7970e7135c08b378a68c7fa99717", kill_on_drop: false }` [INFO] [stdout] 57927c61c53561258d350ee1d63c561f581a7970e7135c08b378a68c7fa99717 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", 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] 98d716f1754dd9102ba62767fc0895fe03f03ffaedd73470ea7b3b092eb4ea57 [INFO] running `Command { std: "docker" "start" "-a" "98d716f1754dd9102ba62767fc0895fe03f03ffaedd73470ea7b3b092eb4ea57", kill_on_drop: false }` [INFO] [stderr] warning: unused variable: `second_value` [INFO] [stderr] --> src/main.rs:6:17 [INFO] [stderr] | [INFO] [stderr] 6 | let mut second_value: Option = None; [INFO] [stderr] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_second_value` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/main.rs:8:14 [INFO] [stderr] | [INFO] [stderr] 8 | for (i, x) in nums.iter().enumerate() { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/main.rs:12:18 [INFO] [stderr] | [INFO] [stderr] 12 | for (i, y) in nums.iter().enumerate() { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:3:13 [INFO] [stderr] | [INFO] [stderr] 3 | let mut first_index: Option = None; [INFO] [stderr] | ----^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:6:13 [INFO] [stderr] | [INFO] [stderr] 6 | let mut second_value: Option = None; [INFO] [stderr] | ----^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: `rust_problems` (bin "rust_problems" test) generated 5 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_problems-46a5637a8af61b2d) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "98d716f1754dd9102ba62767fc0895fe03f03ffaedd73470ea7b3b092eb4ea57", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "98d716f1754dd9102ba62767fc0895fe03f03ffaedd73470ea7b3b092eb4ea57", kill_on_drop: false }` [INFO] [stdout] 98d716f1754dd9102ba62767fc0895fe03f03ffaedd73470ea7b3b092eb4ea57