[INFO] cloning repository https://github.com/27factorial/rust_code_club
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/27factorial/rust_code_club" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F27factorial%2Frust_code_club", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F27factorial%2Frust_code_club'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 34bb236905e579a3f8491d10944f67b5b8ad816e
[INFO] checking 27factorial/rust_code_club against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F27factorial%2Frust_code_club" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/27factorial/rust_code_club on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/27factorial/rust_code_club
[INFO] finished tweaking git repo https://github.com/27factorial/rust_code_club
[INFO] tweaked toml for git repo https://github.com/27factorial/rust_code_club written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/27factorial/rust_code_club already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e659ee572c4976a9cec282cf9a83b4bb79c0e97ca48026fa8e98bc6b8f32d905
[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" "e659ee572c4976a9cec282cf9a83b4bb79c0e97ca48026fa8e98bc6b8f32d905", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e659ee572c4976a9cec282cf9a83b4bb79c0e97ca48026fa8e98bc6b8f32d905", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e659ee572c4976a9cec282cf9a83b4bb79c0e97ca48026fa8e98bc6b8f32d905", kill_on_drop: false }`
[INFO] [stdout] e659ee572c4976a9cec282cf9a83b4bb79c0e97ca48026fa8e98bc6b8f32d905
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1d56a6ed6f7510385f6dec91ee84d3f987232144fe27f6d8acdb8596fa6a07e8
[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" "1d56a6ed6f7510385f6dec91ee84d3f987232144fe27f6d8acdb8596fa6a07e8", kill_on_drop: false }`
[INFO] [stderr]     Checking hello_world v0.1.0 (/opt/rustwide/workdir/hello_world)
[INFO] [stderr]     Checking data_types v0.1.0 (/opt/rustwide/workdir/data_types)
[INFO] [stderr]     Checking variables_and_functions v0.1.0 (/opt/rustwide/workdir/variables_and_functions)
[INFO] [stderr]     Checking borrowing v0.1.0 (/opt/rustwide/workdir/borrowing)
[INFO] [stdout] warning: unused variable: `var`
[INFO] [stdout]  --> data_types/src/main.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let var: i32 = 42;
[INFO] [stdout]   |         ^^^ help: if this is intentional, prefix it with an underscore: `_var`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `esstzet`
[INFO] [stdout]  --> data_types/src/main.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let esstzet: char = 'ß';
[INFO] [stdout]   |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_esstzet`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `first_item`
[INFO] [stdout]   --> data_types/src/main.rs:64:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |     let first_item: i32 = array[0];
[INFO] [stdout]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_first_item`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `var`
[INFO] [stdout]  --> data_types/src/main.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let var: i32 = 42;
[INFO] [stdout]   |         ^^^ help: if this is intentional, prefix it with an underscore: `_var`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `esstzet`
[INFO] [stdout]  --> data_types/src/main.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let esstzet: char = 'ß';
[INFO] [stdout]   |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_esstzet`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `first_item`
[INFO] [stdout]   --> data_types/src/main.rs:64:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |     let first_item: i32 = array[0];
[INFO] [stdout]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_first_item`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `Command { std: "docker" "inspect" "1d56a6ed6f7510385f6dec91ee84d3f987232144fe27f6d8acdb8596fa6a07e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d56a6ed6f7510385f6dec91ee84d3f987232144fe27f6d8acdb8596fa6a07e8", kill_on_drop: false }`
[INFO] [stdout] 1d56a6ed6f7510385f6dec91ee84d3f987232144fe27f6d8acdb8596fa6a07e8