[INFO] cloning repository https://github.com/ruanLN/simulated_annealing_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ruanLN/simulated_annealing_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FruanLN%2Fsimulated_annealing_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FruanLN%2Fsimulated_annealing_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 88afc7c05a730b560cf5923b8f0302733b9451f0
[INFO] testing ruanLN/simulated_annealing_rust against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FruanLN%2Fsimulated_annealing_rust" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ruanLN/simulated_annealing_rust on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ruanLN/simulated_annealing_rust
[INFO] finished tweaking git repo https://github.com/ruanLN/simulated_annealing_rust
[INFO] tweaked toml for git repo https://github.com/ruanLN/simulated_annealing_rust written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/ruanLN/simulated_annealing_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+1.55.0" "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] 6ee487f39b77eddf74c9fd9e938cd38ba50cfebc349a92b02f8ec5c5e34b04e2
[INFO] running `Command { std: "docker" "start" "-a" "6ee487f39b77eddf74c9fd9e938cd38ba50cfebc349a92b02f8ec5c5e34b04e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6ee487f39b77eddf74c9fd9e938cd38ba50cfebc349a92b02f8ec5c5e34b04e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ee487f39b77eddf74c9fd9e938cd38ba50cfebc349a92b02f8ec5c5e34b04e2", kill_on_drop: false }`
[INFO] [stdout] 6ee487f39b77eddf74c9fd9e938cd38ba50cfebc349a92b02f8ec5c5e34b04e2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cc8b9b4635d30dd0fc4ea37b8d4b2cbba1a2721d691e99041656e3b2b712b43d
[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" "cc8b9b4635d30dd0fc4ea37b8d4b2cbba1a2721d691e99041656e3b2b712b43d", kill_on_drop: false }`
[INFO] [stderr]    Compiling simulated_annealing_bpp_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:72:65
[INFO] [stdout]    |
[INFO] [stdout] 72 |         Err(why) => panic!("couldn't open {}: {}", display,    why.description()),
[INFO] [stdout]    |                                                                    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.32s
[INFO] running `Command { std: "docker" "inspect" "cc8b9b4635d30dd0fc4ea37b8d4b2cbba1a2721d691e99041656e3b2b712b43d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc8b9b4635d30dd0fc4ea37b8d4b2cbba1a2721d691e99041656e3b2b712b43d", kill_on_drop: false }`
[INFO] [stdout] cc8b9b4635d30dd0fc4ea37b8d4b2cbba1a2721d691e99041656e3b2b712b43d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e7b053bdcd907d066116de9cb3b68128654a3d0716cdc320d35c69c8602ed7c1
[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" "e7b053bdcd907d066116de9cb3b68128654a3d0716cdc320d35c69c8602ed7c1", kill_on_drop: false }`
[INFO] [stderr]    Compiling simulated_annealing_bpp_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:72:65
[INFO] [stdout]    |
[INFO] [stdout] 72 |         Err(why) => panic!("couldn't open {}: {}", display,    why.description()),
[INFO] [stdout]    |                                                                    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `Command { std: "docker" "inspect" "e7b053bdcd907d066116de9cb3b68128654a3d0716cdc320d35c69c8602ed7c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7b053bdcd907d066116de9cb3b68128654a3d0716cdc320d35c69c8602ed7c1", kill_on_drop: false }`
[INFO] [stdout] e7b053bdcd907d066116de9cb3b68128654a3d0716cdc320d35c69c8602ed7c1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+1.55.0" "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] 20f63d04c9da5bc1bf53ef61175ed8bff4a2c2bff6961d0c8e5832236c6c150b
[INFO] running `Command { std: "docker" "start" "-a" "20f63d04c9da5bc1bf53ef61175ed8bff4a2c2bff6961d0c8e5832236c6c150b", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> src/main.rs:72:65
[INFO] [stderr]    |
[INFO] [stderr] 72 |         Err(why) => panic!("couldn't open {}: {}", display,    why.description()),
[INFO] [stderr]    |                                                                    ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `simulated_annealing_bpp_rust` (bin "simulated_annealing_bpp_rust" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/simulated_annealing_bpp_rust-faa6de8204e44ee9)
[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" "20f63d04c9da5bc1bf53ef61175ed8bff4a2c2bff6961d0c8e5832236c6c150b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20f63d04c9da5bc1bf53ef61175ed8bff4a2c2bff6961d0c8e5832236c6c150b", kill_on_drop: false }`
[INFO] [stdout] 20f63d04c9da5bc1bf53ef61175ed8bff4a2c2bff6961d0c8e5832236c6c150b