[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] testing 27factorial/rust_code_club against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F27factorial%2Frust_code_club" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/27factorial/rust_code_club on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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-8/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" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+1.60.0" "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] 304aa08316be53114bdf5c9e94d77269377de69121c6826247a64d0a9b9ba6e9
[INFO] running `Command { std: "docker" "start" "-a" "304aa08316be53114bdf5c9e94d77269377de69121c6826247a64d0a9b9ba6e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "304aa08316be53114bdf5c9e94d77269377de69121c6826247a64d0a9b9ba6e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "304aa08316be53114bdf5c9e94d77269377de69121c6826247a64d0a9b9ba6e9", kill_on_drop: false }`
[INFO] [stdout] 304aa08316be53114bdf5c9e94d77269377de69121c6826247a64d0a9b9ba6e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+1.60.0" "build" "--frozen" "--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] 546b810781fb81e9ba7f6b2b67cb1b08c3bc89f145239ff477e2e5f1990d5051
[INFO] running `Command { std: "docker" "start" "-a" "546b810781fb81e9ba7f6b2b67cb1b08c3bc89f145239ff477e2e5f1990d5051", kill_on_drop: false }`
[INFO] [stderr]    Compiling data_types v0.1.0 (/opt/rustwide/workdir/data_types)
[INFO] [stderr]    Compiling variables_and_functions v0.1.0 (/opt/rustwide/workdir/variables_and_functions)
[INFO] [stderr]    Compiling borrowing v0.1.0 (/opt/rustwide/workdir/borrowing)
[INFO] [stderr]    Compiling hello_world v0.1.0 (/opt/rustwide/workdir/hello_world)
[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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.02s
[INFO] running `Command { std: "docker" "inspect" "546b810781fb81e9ba7f6b2b67cb1b08c3bc89f145239ff477e2e5f1990d5051", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "546b810781fb81e9ba7f6b2b67cb1b08c3bc89f145239ff477e2e5f1990d5051", kill_on_drop: false }`
[INFO] [stdout] 546b810781fb81e9ba7f6b2b67cb1b08c3bc89f145239ff477e2e5f1990d5051
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+1.60.0" "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] b20da0f2ee85f0ac9615f84caba2ef72eecd516b427d740358f32fcae939fdab
[INFO] running `Command { std: "docker" "start" "-a" "b20da0f2ee85f0ac9615f84caba2ef72eecd516b427d740358f32fcae939fdab", kill_on_drop: false }`
[INFO] [stderr]    Compiling hello_world v0.1.0 (/opt/rustwide/workdir/hello_world)
[INFO] [stderr]    Compiling borrowing v0.1.0 (/opt/rustwide/workdir/borrowing)
[INFO] [stderr]    Compiling variables_and_functions v0.1.0 (/opt/rustwide/workdir/variables_and_functions)
[INFO] [stderr]    Compiling data_types v0.1.0 (/opt/rustwide/workdir/data_types)
[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] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.17s
[INFO] running `Command { std: "docker" "inspect" "b20da0f2ee85f0ac9615f84caba2ef72eecd516b427d740358f32fcae939fdab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b20da0f2ee85f0ac9615f84caba2ef72eecd516b427d740358f32fcae939fdab", kill_on_drop: false }`
[INFO] [stdout] b20da0f2ee85f0ac9615f84caba2ef72eecd516b427d740358f32fcae939fdab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+1.60.0" "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] ff8810003addfada9998f32400855b48706582508259d2c9e0e255afc3f3c0f3
[INFO] running `Command { std: "docker" "start" "-a" "ff8810003addfada9998f32400855b48706582508259d2c9e0e255afc3f3c0f3", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `var`
[INFO] [stderr]  --> data_types/src/main.rs:5:9
[INFO] [stderr]   |
[INFO] [stderr] 5 |     let var: i32 = 42;
[INFO] [stderr]   |         ^^^ help: if this is intentional, prefix it with an underscore: `_var`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `esstzet`
[INFO] [stderr]  --> data_types/src/main.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 |     let esstzet: char = 'ß';
[INFO] [stderr]   |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_esstzet`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `first_item`
[INFO] [stderr]   --> data_types/src/main.rs:64:9
[INFO] [stderr]    |
[INFO] [stderr] 64 |     let first_item: i32 = array[0];
[INFO] [stderr]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_first_item`
[INFO] [stderr] 
[INFO] [stderr] warning: `data_types` (bin "data_types" test) generated 3 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/borrowing-cca65b1886f69b44)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/data_types-39b15526dad2074c)
[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] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/hello_world-900c7f6ebaaef861)
[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] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/variables_and_functions-c46548d74fbc9603)
[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] [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" "ff8810003addfada9998f32400855b48706582508259d2c9e0e255afc3f3c0f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff8810003addfada9998f32400855b48706582508259d2c9e0e255afc3f3c0f3", kill_on_drop: false }`
[INFO] [stdout] ff8810003addfada9998f32400855b48706582508259d2c9e0e255afc3f3c0f3