[INFO] fetching crate virtual-node 0.2.7...
[INFO] testing virtual-node-0.2.7 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate virtual-node 0.2.7 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate virtual-node 0.2.7 on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate virtual-node 0.2.7
[INFO] finished tweaking crates.io crate virtual-node 0.2.7
[INFO] tweaked toml for crates.io crate virtual-node 0.2.7 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9e4b53d2094210f6e5228bfc3967ea2f67e2a67b9d43cfe2064e5fa6018c3f5f
[INFO] running `"docker" "start" "-a" "9e4b53d2094210f6e5228bfc3967ea2f67e2a67b9d43cfe2064e5fa6018c3f5f"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling html-validation v0.1.2
[INFO] [stderr]    Compiling js-sys v0.3.40
[INFO] [stderr]    Compiling web-sys v0.3.40
[INFO] [stderr]    Compiling virtual-node v0.2.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.81s
[INFO] running `"docker" "inspect" "9e4b53d2094210f6e5228bfc3967ea2f67e2a67b9d43cfe2064e5fa6018c3f5f"`
[INFO] running `"docker" "rm" "-f" "9e4b53d2094210f6e5228bfc3967ea2f67e2a67b9d43cfe2064e5fa6018c3f5f"`
[INFO] [stdout] 9e4b53d2094210f6e5228bfc3967ea2f67e2a67b9d43cfe2064e5fa6018c3f5f
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 07e7967562cb0c5dae0d1d2cacc38c3756ab1aac6b3ca8e6f25fc2615ffbfac4
[INFO] running `"docker" "start" "-a" "07e7967562cb0c5dae0d1d2cacc38c3756ab1aac6b3ca8e6f25fc2615ffbfac4"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling virtual-node v0.2.7 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:619:13
[INFO] [stderr]     |
[INFO] [stderr] 619 |         let mut text = VirtualNode::Text(VText::new("Hello world"));
[INFO] [stderr]     |             ----^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.37s
[INFO] running `"docker" "inspect" "07e7967562cb0c5dae0d1d2cacc38c3756ab1aac6b3ca8e6f25fc2615ffbfac4"`
[INFO] running `"docker" "rm" "-f" "07e7967562cb0c5dae0d1d2cacc38c3756ab1aac6b3ca8e6f25fc2615ffbfac4"`
[INFO] [stdout] 07e7967562cb0c5dae0d1d2cacc38c3756ab1aac6b3ca8e6f25fc2615ffbfac4
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 83b888fc878ede4762ed084306a831ba8af18a2d9acfa6422a0294476dc64665
[INFO] running `"docker" "start" "-a" "83b888fc878ede4762ed084306a831ba8af18a2d9acfa6422a0294476dc64665"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:619:13
[INFO] [stderr]     |
[INFO] [stderr] 619 |         let mut text = VirtualNode::Text(VText::new("Hello world"));
[INFO] [stderr]     |             ----^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/virtual_node-edf461288f4b6284
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::self_closing_tag_to_string ... ok
[INFO] [stdout] test virtual_node_test_utils::tests::label_equals ... ok
[INFO] [stdout] test tests::to_string ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests virtual-node
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - VirtualNode::element (line 85) ... ignored
[INFO] [stdout] test src/lib.rs - VirtualNode::text (line 101) ... ignored
[INFO] [stdout] test src/virtual_node_test_utils.rs - virtual_node_test_utils::VirtualNode::filter_label (line 11) ... ignored
[INFO] [stdout] test src/virtual_node_test_utils.rs - virtual_node_test_utils::VirtualNode::filter_label_equals (line 60) ... ignored
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 4 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "83b888fc878ede4762ed084306a831ba8af18a2d9acfa6422a0294476dc64665"`
[INFO] running `"docker" "rm" "-f" "83b888fc878ede4762ed084306a831ba8af18a2d9acfa6422a0294476dc64665"`
[INFO] [stdout] 83b888fc878ede4762ed084306a831ba8af18a2d9acfa6422a0294476dc64665