[INFO] cloning repository https://github.com/Jonas002/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/Jonas002/rust-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJonas002%2Frust-playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJonas002%2Frust-playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ea402316ca6d277df0bf6108894dbeab3bd5ac95
[INFO] testing Jonas002/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%2FJonas002%2Frust-playground" "/workspace/builds/worker-41/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-41/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Jonas002/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/Jonas002/rust-playground
[INFO] finished tweaking git repo https://github.com/Jonas002/rust-playground
[INFO] tweaked toml for git repo https://github.com/Jonas002/rust-playground written to /workspace/builds/worker-41/source/Cargo.toml
[INFO] crate git repo https://github.com/Jonas002/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5763e767c7abc101440a78efd80c328bb9ee9749f1525d5e77ba423825988875
[INFO] running `Command { std: "docker" "start" "-a" "5763e767c7abc101440a78efd80c328bb9ee9749f1525d5e77ba423825988875", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5763e767c7abc101440a78efd80c328bb9ee9749f1525d5e77ba423825988875", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5763e767c7abc101440a78efd80c328bb9ee9749f1525d5e77ba423825988875", kill_on_drop: false }`
[INFO] [stdout] 5763e767c7abc101440a78efd80c328bb9ee9749f1525d5e77ba423825988875
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 415af9f5f6b02bd306bfff631af77a99108cfe782ed6b6a563160a47c4250db9
[INFO] running `Command { std: "docker" "start" "-a" "415af9f5f6b02bd306bfff631af77a99108cfe782ed6b6a563160a47c4250db9", kill_on_drop: false }`
[INFO] [stderr]    Compiling playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/types.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let y = 2.5; // default f64
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vslice`
[INFO] [stdout]    --> src/types.rs:105:9
[INFO] [stdout]     |
[INFO] [stdout] 105 |     let vslice: &[i32] = &vnumbers[1..2];
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_vslice`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.29s
[INFO] running `Command { std: "docker" "inspect" "415af9f5f6b02bd306bfff631af77a99108cfe782ed6b6a563160a47c4250db9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "415af9f5f6b02bd306bfff631af77a99108cfe782ed6b6a563160a47c4250db9", kill_on_drop: false }`
[INFO] [stdout] 415af9f5f6b02bd306bfff631af77a99108cfe782ed6b6a563160a47c4250db9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ef880ec7c590cc5673ae8ce0f51ff93b971f933b4e2817c01988116a9ae4916f
[INFO] running `Command { std: "docker" "start" "-a" "ef880ec7c590cc5673ae8ce0f51ff93b971f933b4e2817c01988116a9ae4916f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/types.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let y = 2.5; // default f64
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vslice`
[INFO] [stdout]    --> src/types.rs:105:9
[INFO] [stdout]     |
[INFO] [stdout] 105 |     let vslice: &[i32] = &vnumbers[1..2];
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_vslice`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.15s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/playground-28c719ff76e14141)
[INFO] running `Command { std: "docker" "inspect" "ef880ec7c590cc5673ae8ce0f51ff93b971f933b4e2817c01988116a9ae4916f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef880ec7c590cc5673ae8ce0f51ff93b971f933b4e2817c01988116a9ae4916f", kill_on_drop: false }`
[INFO] [stdout] ef880ec7c590cc5673ae8ce0f51ff93b971f933b4e2817c01988116a9ae4916f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b75f15f8b52f6782e5e11837a725a6b60fa57b1fede00065e3f977875d78e506
[INFO] running `Command { std: "docker" "start" "-a" "b75f15f8b52f6782e5e11837a725a6b60fa57b1fede00065e3f977875d78e506", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]   --> src/types.rs:39:9
[INFO] [stderr]    |
[INFO] [stderr] 39 |     let y = 2.5; // default f64
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vslice`
[INFO] [stderr]    --> src/types.rs:105:9
[INFO] [stderr]     |
[INFO] [stderr] 105 |     let vslice: &[i32] = &vnumbers[1..2];
[INFO] [stderr]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_vslice`
[INFO] [stderr] 
[INFO] [stderr] warning: `playground` (bin "playground" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.92s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/playground-28c719ff76e14141)
[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" "b75f15f8b52f6782e5e11837a725a6b60fa57b1fede00065e3f977875d78e506", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b75f15f8b52f6782e5e11837a725a6b60fa57b1fede00065e3f977875d78e506", kill_on_drop: false }`
[INFO] [stdout] b75f15f8b52f6782e5e11837a725a6b60fa57b1fede00065e3f977875d78e506