[INFO] cloning repository https://github.com/JangGeunSong/rusttoy
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JangGeunSong/rusttoy" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJangGeunSong%2Frusttoy", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJangGeunSong%2Frusttoy'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 98a3f24ad8d5f710f8c8fa7f535b44440ba30934
[INFO] testing JangGeunSong/rusttoy against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJangGeunSong%2Frusttoy" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JangGeunSong/rusttoy on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/JangGeunSong/rusttoy
[INFO] finished tweaking git repo https://github.com/JangGeunSong/rusttoy
[INFO] tweaked toml for git repo https://github.com/JangGeunSong/rusttoy written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/JangGeunSong/rusttoy already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2fa4872e548983f6cdb6e90642e9bbd0688a412d52b224f652e404e1038360e4
[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" "2fa4872e548983f6cdb6e90642e9bbd0688a412d52b224f652e404e1038360e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2fa4872e548983f6cdb6e90642e9bbd0688a412d52b224f652e404e1038360e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fa4872e548983f6cdb6e90642e9bbd0688a412d52b224f652e404e1038360e4", kill_on_drop: false }`
[INFO] [stdout] 2fa4872e548983f6cdb6e90642e9bbd0688a412d52b224f652e404e1038360e4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] 2f279e39f29f0cf21997d633989c56efa906a91c9f4340a52669e906c2b30ec1
[INFO] running `Command { std: "docker" "start" "-a" "2f279e39f29f0cf21997d633989c56efa906a91c9f4340a52669e906c2b30ec1", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustToy v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `arr2`
[INFO] [stdout]  --> src/pointer_ref.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let arr2 = arr1;
[INFO] [stdout]   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_arr2`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `rustToy` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `rust_toy`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `Command { std: "docker" "inspect" "2f279e39f29f0cf21997d633989c56efa906a91c9f4340a52669e906c2b30ec1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f279e39f29f0cf21997d633989c56efa906a91c9f4340a52669e906c2b30ec1", kill_on_drop: false }`
[INFO] [stdout] 2f279e39f29f0cf21997d633989c56efa906a91c9f4340a52669e906c2b30ec1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 43c39c980ec10c1bdd2f48a1b85299e6b1cc8487e8986b45b29a84c611e4fc8a
[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" "43c39c980ec10c1bdd2f48a1b85299e6b1cc8487e8986b45b29a84c611e4fc8a", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustToy v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `arr2`
[INFO] [stdout]  --> src/pointer_ref.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let arr2 = arr1;
[INFO] [stdout]   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_arr2`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `rustToy` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `rust_toy`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.89s
[INFO] running `Command { std: "docker" "inspect" "43c39c980ec10c1bdd2f48a1b85299e6b1cc8487e8986b45b29a84c611e4fc8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43c39c980ec10c1bdd2f48a1b85299e6b1cc8487e8986b45b29a84c611e4fc8a", kill_on_drop: false }`
[INFO] [stdout] 43c39c980ec10c1bdd2f48a1b85299e6b1cc8487e8986b45b29a84c611e4fc8a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b184d89109ba0914d0fdad2e22cc3f7fea4b51cfeebf139d160b7b2dd3be3f3e
[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" "b184d89109ba0914d0fdad2e22cc3f7fea4b51cfeebf139d160b7b2dd3be3f3e", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `arr2`
[INFO] [stderr]  --> src/pointer_ref.rs:6:9
[INFO] [stderr]   |
[INFO] [stderr] 6 |     let arr2 = arr1;
[INFO] [stderr]   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_arr2`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: crate `rustToy` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `rust_toy`
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rustToy-a29978b3a0e5d257
[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" "b184d89109ba0914d0fdad2e22cc3f7fea4b51cfeebf139d160b7b2dd3be3f3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b184d89109ba0914d0fdad2e22cc3f7fea4b51cfeebf139d160b7b2dd3be3f3e", kill_on_drop: false }`
[INFO] [stdout] b184d89109ba0914d0fdad2e22cc3f7fea4b51cfeebf139d160b7b2dd3be3f3e