[INFO] cloning repository https://github.com/davelively14/udemy-rust-playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/davelively14/udemy-rust-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavelively14%2Fudemy-rust-playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavelively14%2Fudemy-rust-playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c5c4e6688d8cae040a94d34c6f5f792a1c5f8ef3
[INFO] testing davelively14/udemy-rust-playground against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavelively14%2Fudemy-rust-playground" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/davelively14/udemy-rust-playground on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/davelively14/udemy-rust-playground
[INFO] finished tweaking git repo https://github.com/davelively14/udemy-rust-playground
[INFO] tweaked toml for git repo https://github.com/davelively14/udemy-rust-playground written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/davelively14/udemy-rust-playground already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2022-04-10" "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] 29217ef45776a166a3789a5bbee6f9053ecbd1999b2c81edc1adcb4858db82e2
[INFO] running `Command { std: "docker" "start" "-a" "29217ef45776a166a3789a5bbee6f9053ecbd1999b2c81edc1adcb4858db82e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "29217ef45776a166a3789a5bbee6f9053ecbd1999b2c81edc1adcb4858db82e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29217ef45776a166a3789a5bbee6f9053ecbd1999b2c81edc1adcb4858db82e2", kill_on_drop: false }`
[INFO] [stdout] 29217ef45776a166a3789a5bbee6f9053ecbd1999b2c81edc1adcb4858db82e2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2022-04-10" "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] 8532ffadaccfa9283f1cd38bc698a6464ff7f7a4f8d05c6922114c860a7f1b56
[INFO] running `Command { std: "docker" "start" "-a" "8532ffadaccfa9283f1cd38bc698a6464ff7f7a4f8d05c6922114c860a7f1b56", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling nodrop v0.1.13
[INFO] [stderr]    Compiling rayon-core v1.5.0
[INFO] [stderr]    Compiling rand_core v0.4.0
[INFO] [stderr]    Compiling either v1.5.2
[INFO] [stderr]    Compiling memoffset v0.5.1
[INFO] [stderr]    Compiling crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling itertools v0.7.11
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling crossbeam-queue v0.1.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.7.2
[INFO] [stderr]    Compiling num_cpus v1.10.1
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling crossbeam-deque v0.6.3
[INFO] [stderr]    Compiling rayon v1.1.0
[INFO] [stderr]    Compiling playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/barycenter.rs:58:21
[INFO] [stdout]    |
[INFO] [stdout] 58 |     let tuples: Vec<(_)> = bodies.iter().tuples().collect();
[INFO] [stdout]    |                     ^ ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 58 -     let tuples: Vec<(_)> = bodies.iter().tuples().collect();
[INFO] [stdout] 58 +     let tuples: Vec<_> = bodies.iter().tuples().collect();
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.88s
[INFO] running `Command { std: "docker" "inspect" "8532ffadaccfa9283f1cd38bc698a6464ff7f7a4f8d05c6922114c860a7f1b56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8532ffadaccfa9283f1cd38bc698a6464ff7f7a4f8d05c6922114c860a7f1b56", kill_on_drop: false }`
[INFO] [stdout] 8532ffadaccfa9283f1cd38bc698a6464ff7f7a4f8d05c6922114c860a7f1b56
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2022-04-10" "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] 2b19629139d7de0c3be7883657b2715ec81998580faa31924788430fa77353fe
[INFO] running `Command { std: "docker" "start" "-a" "2b19629139d7de0c3be7883657b2715ec81998580faa31924788430fa77353fe", kill_on_drop: false }`
[INFO] [stderr]    Compiling playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/barycenter.rs:58:21
[INFO] [stdout]    |
[INFO] [stdout] 58 |     let tuples: Vec<(_)> = bodies.iter().tuples().collect();
[INFO] [stdout]    |                     ^ ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 58 -     let tuples: Vec<(_)> = bodies.iter().tuples().collect();
[INFO] [stdout] 58 +     let tuples: Vec<_> = bodies.iter().tuples().collect();
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.82s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/playground-7da3341d145e6fd9)
[INFO] running `Command { std: "docker" "inspect" "2b19629139d7de0c3be7883657b2715ec81998580faa31924788430fa77353fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b19629139d7de0c3be7883657b2715ec81998580faa31924788430fa77353fe", kill_on_drop: false }`
[INFO] [stdout] 2b19629139d7de0c3be7883657b2715ec81998580faa31924788430fa77353fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2022-04-10" "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] a8f542f804c1c737f938a297dbd242887dacecc3839c1f327cda71b485c4469f
[INFO] running `Command { std: "docker" "start" "-a" "a8f542f804c1c737f938a297dbd242887dacecc3839c1f327cda71b485c4469f", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/barycenter.rs:58:21
[INFO] [stderr]    |
[INFO] [stderr] 58 |     let tuples: Vec<(_)> = bodies.iter().tuples().collect();
[INFO] [stderr]    |                     ^ ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 58 -     let tuples: Vec<(_)> = bodies.iter().tuples().collect();
[INFO] [stderr] 58 +     let tuples: Vec<_> = bodies.iter().tuples().collect();
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: `playground` (bin "playground" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/playground-7da3341d145e6fd9)
[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" "a8f542f804c1c737f938a297dbd242887dacecc3839c1f327cda71b485c4469f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8f542f804c1c737f938a297dbd242887dacecc3839c1f327cda71b485c4469f", kill_on_drop: false }`
[INFO] [stdout] a8f542f804c1c737f938a297dbd242887dacecc3839c1f327cda71b485c4469f