[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 try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[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 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "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" "+722e1797249a965b6335aebd65d777f917e498f1" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9c62ccc3f7c57ce1675c9c09813250600d5c966fe871f52e59f00d1b747594bc
[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" "9c62ccc3f7c57ce1675c9c09813250600d5c966fe871f52e59f00d1b747594bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9c62ccc3f7c57ce1675c9c09813250600d5c966fe871f52e59f00d1b747594bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c62ccc3f7c57ce1675c9c09813250600d5c966fe871f52e59f00d1b747594bc", kill_on_drop: false }`
[INFO] [stdout] 9c62ccc3f7c57ce1675c9c09813250600d5c966fe871f52e59f00d1b747594bc
[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=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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 35d7d12550f0f9432a70deac69f056d60fb3954f9af7128aa291fd2d4d0bc6e8
[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" "35d7d12550f0f9432a70deac69f056d60fb3954f9af7128aa291fd2d4d0bc6e8", kill_on_drop: false }`
[INFO] [stderr]    Compiling borrowing v0.1.0 (/opt/rustwide/workdir/borrowing)
[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 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 2.09s
[INFO] running `Command { std: "docker" "inspect" "35d7d12550f0f9432a70deac69f056d60fb3954f9af7128aa291fd2d4d0bc6e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35d7d12550f0f9432a70deac69f056d60fb3954f9af7128aa291fd2d4d0bc6e8", kill_on_drop: false }`
[INFO] [stdout] 35d7d12550f0f9432a70deac69f056d60fb3954f9af7128aa291fd2d4d0bc6e8
[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=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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8a8e5981eaa846ab2ee3fb8861ef0d8163a49dba406d6f009d7353fdd6789349
[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" "8a8e5981eaa846ab2ee3fb8861ef0d8163a49dba406d6f009d7353fdd6789349", kill_on_drop: false }`
[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] [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 1.81s
[INFO] running `Command { std: "docker" "inspect" "8a8e5981eaa846ab2ee3fb8861ef0d8163a49dba406d6f009d7353fdd6789349", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a8e5981eaa846ab2ee3fb8861ef0d8163a49dba406d6f009d7353fdd6789349", kill_on_drop: false }`
[INFO] [stdout] 8a8e5981eaa846ab2ee3fb8861ef0d8163a49dba406d6f009d7353fdd6789349
[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=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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "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] 7856db5bd2370db7cdfea4a53a58dbf528afc5b01061d1365169b33f0d2a3ba2
[INFO] running `Command { std: "docker" "start" "-a" "7856db5bd2370db7cdfea4a53a58dbf528afc5b01061d1365169b33f0d2a3ba2", 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-777ae1b40042ade4)
[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] [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/data_types-7c50fd38176f500d)
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/hello_world-65b866529d0362ed)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/variables_and_functions-2b006c21e8b5ebe3)
[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" "7856db5bd2370db7cdfea4a53a58dbf528afc5b01061d1365169b33f0d2a3ba2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7856db5bd2370db7cdfea4a53a58dbf528afc5b01061d1365169b33f0d2a3ba2", kill_on_drop: false }`
[INFO] [stdout] 7856db5bd2370db7cdfea4a53a58dbf528afc5b01061d1365169b33f0d2a3ba2