[INFO] cloning repository https://github.com/SliverCicada/toy-of-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SliverCicada/toy-of-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSliverCicada%2Ftoy-of-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSliverCicada%2Ftoy-of-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3d34aa23740d3012fd64d29821597bff02c70026
[INFO] testing SliverCicada/toy-of-rust against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSliverCicada%2Ftoy-of-rust" "/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/SliverCicada/toy-of-rust on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/SliverCicada/toy-of-rust
[INFO] finished tweaking git repo https://github.com/SliverCicada/toy-of-rust
[INFO] tweaked toml for git repo https://github.com/SliverCicada/toy-of-rust written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/SliverCicada/toy-of-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "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] bfe3756fe340feec5bab51ea8cdaed5e9ef5ac5f22dadd4bbe0f36e6431e80af
[INFO] running `Command { std: "docker" "start" "-a" "bfe3756fe340feec5bab51ea8cdaed5e9ef5ac5f22dadd4bbe0f36e6431e80af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bfe3756fe340feec5bab51ea8cdaed5e9ef5ac5f22dadd4bbe0f36e6431e80af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfe3756fe340feec5bab51ea8cdaed5e9ef5ac5f22dadd4bbe0f36e6431e80af", kill_on_drop: false }`
[INFO] [stdout] bfe3756fe340feec5bab51ea8cdaed5e9ef5ac5f22dadd4bbe0f36e6431e80af
[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=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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 10194466d5e532183f004ac07c9a25aa886ff11cd9d8198957851bfea91fda75
[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" "10194466d5e532183f004ac07c9a25aa886ff11cd9d8198957851bfea91fda75", kill_on_drop: false }`
[INFO] [stderr]    Compiling toy v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `str1`
[INFO] [stdout]    --> src/main.rs:347:9
[INFO] [stdout]     |
[INFO] [stdout] 347 |     let str1 = "产不及中人，而欲齐驱金谷，世颇多捷径，而独株守於陵，如此则贫富舛矣".to_string();
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_str1`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `str2`
[INFO] [stdout]    --> src/main.rs:348:9
[INFO] [stdout]     |
[INFO] [stdout] 348 |     let str2 = "博弈摴蒱，则不知胜负，啜茶尝水，则能辨渑淄，如此则智愚杂矣".to_string();
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_str2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.03s
[INFO] running `Command { std: "docker" "inspect" "10194466d5e532183f004ac07c9a25aa886ff11cd9d8198957851bfea91fda75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10194466d5e532183f004ac07c9a25aa886ff11cd9d8198957851bfea91fda75", kill_on_drop: false }`
[INFO] [stdout] 10194466d5e532183f004ac07c9a25aa886ff11cd9d8198957851bfea91fda75
[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=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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "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] 95d81bb09df9728459bef4661bb31f3fdde69a56efdd919632ab0043ec46f687
[INFO] running `Command { std: "docker" "start" "-a" "95d81bb09df9728459bef4661bb31f3fdde69a56efdd919632ab0043ec46f687", kill_on_drop: false }`
[INFO] [stderr]    Compiling toy v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `str1`
[INFO] [stdout]    --> src/main.rs:347:9
[INFO] [stdout]     |
[INFO] [stdout] 347 |     let str1 = "产不及中人，而欲齐驱金谷，世颇多捷径，而独株守於陵，如此则贫富舛矣".to_string();
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_str1`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `str2`
[INFO] [stdout]    --> src/main.rs:348:9
[INFO] [stdout]     |
[INFO] [stdout] 348 |     let str2 = "博弈摴蒱，则不知胜负，啜茶尝水，则能辨渑淄，如此则智愚杂矣".to_string();
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_str2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.97s
[INFO] running `Command { std: "docker" "inspect" "95d81bb09df9728459bef4661bb31f3fdde69a56efdd919632ab0043ec46f687", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95d81bb09df9728459bef4661bb31f3fdde69a56efdd919632ab0043ec46f687", kill_on_drop: false }`
[INFO] [stdout] 95d81bb09df9728459bef4661bb31f3fdde69a56efdd919632ab0043ec46f687
[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=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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e03238815171f7b959505d790e9d69ec54fd0d0d31ba0539aea811f92972cad1
[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" "e03238815171f7b959505d790e9d69ec54fd0d0d31ba0539aea811f92972cad1", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `str1`
[INFO] [stderr]    --> src/main.rs:347:9
[INFO] [stderr]     |
[INFO] [stderr] 347 |     let str1 = "产不及中人，而欲齐驱金谷，世颇多捷径，而独株守於陵，如此则贫富舛矣".to_string();
[INFO] [stderr]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_str1`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `str2`
[INFO] [stderr]    --> src/main.rs:348:9
[INFO] [stderr]     |
[INFO] [stderr] 348 |     let str2 = "博弈摴蒱，则不知胜负，啜茶尝水，则能辨渑淄，如此则智愚杂矣".to_string();
[INFO] [stderr]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_str2`
[INFO] [stderr] 
[INFO] [stderr] warning: `toy` (bin "toy" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/toy-51e9e32d9118da55)
[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" "e03238815171f7b959505d790e9d69ec54fd0d0d31ba0539aea811f92972cad1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e03238815171f7b959505d790e9d69ec54fd0d0d31ba0539aea811f92972cad1", kill_on_drop: false }`
[INFO] [stdout] e03238815171f7b959505d790e9d69ec54fd0d0d31ba0539aea811f92972cad1