[INFO] fetching crate common-tree 0.2.0...
[INFO] testing common-tree-0.2.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate common-tree 0.2.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate common-tree 0.2.0 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate common-tree 0.2.0
[INFO] finished tweaking crates.io crate common-tree 0.2.0
[INFO] tweaked toml for crates.io crate common-tree 0.2.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate common-tree 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+1.60.0" "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] 9401ed6e1507ee4ae9dfe9c8c2f609a50a56e52b16f8b997906b92be777671ea
[INFO] running `Command { std: "docker" "start" "-a" "9401ed6e1507ee4ae9dfe9c8c2f609a50a56e52b16f8b997906b92be777671ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9401ed6e1507ee4ae9dfe9c8c2f609a50a56e52b16f8b997906b92be777671ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9401ed6e1507ee4ae9dfe9c8c2f609a50a56e52b16f8b997906b92be777671ea", kill_on_drop: false }`
[INFO] [stdout] 9401ed6e1507ee4ae9dfe9c8c2f609a50a56e52b16f8b997906b92be777671ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+1.60.0" "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] 4f65d21b7a63b7462717fbc97fdfb2bcb0c8de1d85bd54a1218160d850a1f521
[INFO] running `Command { std: "docker" "start" "-a" "4f65d21b7a63b7462717fbc97fdfb2bcb0c8de1d85bd54a1218160d850a1f521", kill_on_drop: false }`
[INFO] [stderr]    Compiling common-tree v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.27s
[INFO] running `Command { std: "docker" "inspect" "4f65d21b7a63b7462717fbc97fdfb2bcb0c8de1d85bd54a1218160d850a1f521", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f65d21b7a63b7462717fbc97fdfb2bcb0c8de1d85bd54a1218160d850a1f521", kill_on_drop: false }`
[INFO] [stdout] 4f65d21b7a63b7462717fbc97fdfb2bcb0c8de1d85bd54a1218160d850a1f521
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+1.60.0" "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] 2f489c253bccc27a9a8926c5ff7ff08d8eaf2292dc611cda0d6a05bf8cfe08a6
[INFO] running `Command { std: "docker" "start" "-a" "2f489c253bccc27a9a8926c5ff7ff08d8eaf2292dc611cda0d6a05bf8cfe08a6", kill_on_drop: false }`
[INFO] [stderr]    Compiling common-tree v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `level2_2`
[INFO] [stdout]    --> src/node.rs:200:13
[INFO] [stdout]     |
[INFO] [stdout] 200 |         let level2_2 = Node::new(level2_2_data.clone());
[INFO] [stdout]     |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_level2_2`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` 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 1.90s
[INFO] running `Command { std: "docker" "inspect" "2f489c253bccc27a9a8926c5ff7ff08d8eaf2292dc611cda0d6a05bf8cfe08a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f489c253bccc27a9a8926c5ff7ff08d8eaf2292dc611cda0d6a05bf8cfe08a6", kill_on_drop: false }`
[INFO] [stdout] 2f489c253bccc27a9a8926c5ff7ff08d8eaf2292dc611cda0d6a05bf8cfe08a6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+1.60.0" "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] 1971ec0cf380318d37ebe0f99abde090d97083044b5db531d8d64d718781935e
[INFO] running `Command { std: "docker" "start" "-a" "1971ec0cf380318d37ebe0f99abde090d97083044b5db531d8d64d718781935e", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `level2_2`
[INFO] [stderr]    --> src/node.rs:200:13
[INFO] [stderr]     |
[INFO] [stderr] 200 |         let level2_2 = Node::new(level2_2_data.clone());
[INFO] [stderr]     |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_level2_2`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `common-tree` (lib test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/common_tree-7a1ff652d321fc91)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test node::tests::child_path_works ... ok
[INFO] [stdout] test node::tests::child_works ... ok
[INFO] [stderr]    Doc-tests common-tree
[INFO] [stdout] test node::tests::traversal_works ... ok
[INFO] [stdout] test node::tests::data_works ... ok
[INFO] [stdout] test node::tests::last_child_level_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[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" "1971ec0cf380318d37ebe0f99abde090d97083044b5db531d8d64d718781935e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1971ec0cf380318d37ebe0f99abde090d97083044b5db531d8d64d718781935e", kill_on_drop: false }`
[INFO] [stdout] 1971ec0cf380318d37ebe0f99abde090d97083044b5db531d8d64d718781935e