[INFO] cloning repository https://github.com/brunoshiroma/benchtool-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/brunoshiroma/benchtool-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrunoshiroma%2Fbenchtool-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrunoshiroma%2Fbenchtool-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fad2eeb1c57b7410421083f12b42e4be68249da7
[INFO] testing brunoshiroma/benchtool-rust against beta-2020-10-09 for beta-1.48-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrunoshiroma%2Fbenchtool-rust" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/brunoshiroma/benchtool-rust on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/brunoshiroma/benchtool-rust
[INFO] finished tweaking git repo https://github.com/brunoshiroma/benchtool-rust
[INFO] tweaked toml for git repo https://github.com/brunoshiroma/benchtool-rust written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/brunoshiroma/benchtool-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2cf9f424198aace0c9a89cf73641a31846a4e7a7dcf4edf221a11b90969981c6
[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" "2cf9f424198aace0c9a89cf73641a31846a4e7a7dcf4edf221a11b90969981c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2cf9f424198aace0c9a89cf73641a31846a4e7a7dcf4edf221a11b90969981c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2cf9f424198aace0c9a89cf73641a31846a4e7a7dcf4edf221a11b90969981c6", kill_on_drop: false }`
[INFO] [stdout] 2cf9f424198aace0c9a89cf73641a31846a4e7a7dcf4edf221a11b90969981c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "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] fd7b5391ebe225b13b828e5bb3629864e3ca3e0c71d1e0b3b84622ae7b978c4c
[INFO] running `Command { std: "docker" "start" "-a" "fd7b5391ebe225b13b828e5bb3629864e3ca3e0c71d1e0b3b84622ae7b978c4c", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-bigint v0.3.0
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling benchtool-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value captured by `result` is never read
[INFO] [stdout]   --> src/benchtool/simple_fibonacci_recursive_bench.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |         result = calculate_fibonacci(Zero::zero(), One::one(), count, &mut 1);
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: did you mean to capture by reference instead?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value captured by `result` is never read
[INFO] [stdout]   --> src/benchtool/simple_fibonacci_recursive_bench.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |         result = calculate_fibonacci(Zero::zero(), One::one(), count, &mut 1);
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: did you mean to capture by reference instead?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.82s
[INFO] running `Command { std: "docker" "inspect" "fd7b5391ebe225b13b828e5bb3629864e3ca3e0c71d1e0b3b84622ae7b978c4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd7b5391ebe225b13b828e5bb3629864e3ca3e0c71d1e0b3b84622ae7b978c4c", kill_on_drop: false }`
[INFO] [stdout] fd7b5391ebe225b13b828e5bb3629864e3ca3e0c71d1e0b3b84622ae7b978c4c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3c09ce055fa1e4f95184816d592a05f967687cc0c6f48235c232bcece3460eb5
[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" "3c09ce055fa1e4f95184816d592a05f967687cc0c6f48235c232bcece3460eb5", kill_on_drop: false }`
[INFO] [stderr]    Compiling benchtool-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value captured by `result` is never read
[INFO] [stdout]   --> src/benchtool/simple_fibonacci_recursive_bench.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |         result = calculate_fibonacci(Zero::zero(), One::one(), count, &mut 1);
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: did you mean to capture by reference instead?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value captured by `result` is never read
[INFO] [stdout]   --> src/benchtool/simple_fibonacci_recursive_bench.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |         result = calculate_fibonacci(Zero::zero(), One::one(), count, &mut 1);
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: did you mean to capture by reference instead?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.47s
[INFO] running `Command { std: "docker" "inspect" "3c09ce055fa1e4f95184816d592a05f967687cc0c6f48235c232bcece3460eb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c09ce055fa1e4f95184816d592a05f967687cc0c6f48235c232bcece3460eb5", kill_on_drop: false }`
[INFO] [stdout] 3c09ce055fa1e4f95184816d592a05f967687cc0c6f48235c232bcece3460eb5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f32760fe0569419ffb014272776e1854aa738d01bc2989122632069494fc3609
[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" "f32760fe0569419ffb014272776e1854aa738d01bc2989122632069494fc3609", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: value captured by `result` is never read
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> src/benchtool/simple_fibonacci_recursive_bench.rs:18:9
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stderr] 18 |         result = calculate_fibonacci(Zero::zero(), One::one(), count, &mut 1);
[INFO] [stdout] 
[INFO] [stderr]    |         ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: did you mean to capture by reference instead?
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: value captured by `result` is never read
[INFO] [stderr]   --> src/benchtool/simple_fibonacci_recursive_bench.rs:18:9
[INFO] [stderr]    |
[INFO] [stderr] 18 |         result = calculate_fibonacci(Zero::zero(), One::one(), count, &mut 1);
[INFO] [stderr]    |         ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: did you mean to capture by reference instead?
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/benchtoolrust-42d7a0a4e6f20a74
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/benchtool_rust-7b670d861e92edfa
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f32760fe0569419ffb014272776e1854aa738d01bc2989122632069494fc3609", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f32760fe0569419ffb014272776e1854aa738d01bc2989122632069494fc3609", kill_on_drop: false }`
[INFO] [stdout] f32760fe0569419ffb014272776e1854aa738d01bc2989122632069494fc3609
