[INFO] fetching crate virtual-node 0.2.7...
[INFO] testing virtual-node-0.2.7 against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] extracting crate virtual-node 0.2.7 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate virtual-node 0.2.7 on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-15/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded html-validation v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1682d8bc53e55b13b9d1ca8f27c77d34f40f61bf0d4e254bf54e51a51061634f
[INFO] running `Command { std: "docker" "start" "-a" "1682d8bc53e55b13b9d1ca8f27c77d34f40f61bf0d4e254bf54e51a51061634f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1682d8bc53e55b13b9d1ca8f27c77d34f40f61bf0d4e254bf54e51a51061634f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1682d8bc53e55b13b9d1ca8f27c77d34f40f61bf0d4e254bf54e51a51061634f", kill_on_drop: false }`
[INFO] [stdout] 1682d8bc53e55b13b9d1ca8f27c77d34f40f61bf0d4e254bf54e51a51061634f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 30ccfe69e63455bd5fa292a6722b9a5e06f75b43f85ca1e08a490fe0ed764d0b
[INFO] running `Command { std: "docker" "start" "-a" "30ccfe69e63455bd5fa292a6722b9a5e06f75b43f85ca1e08a490fe0ed764d0b", kill_on_drop: false }`
[INFO] [stderr]    Compiling html-validation v0.1.2
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.74
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.74
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.74
[INFO] [stderr]    Compiling wasm-bindgen v0.2.74
[INFO] [stderr]    Compiling js-sys v0.3.51
[INFO] [stderr]    Compiling web-sys v0.3.51
[INFO] [stderr]    Compiling virtual-node v0.2.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.86s
[INFO] running `Command { std: "docker" "inspect" "30ccfe69e63455bd5fa292a6722b9a5e06f75b43f85ca1e08a490fe0ed764d0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30ccfe69e63455bd5fa292a6722b9a5e06f75b43f85ca1e08a490fe0ed764d0b", kill_on_drop: false }`
[INFO] [stdout] 30ccfe69e63455bd5fa292a6722b9a5e06f75b43f85ca1e08a490fe0ed764d0b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c35baa8d97fa60e762e37e39741cd768e14ba7b160a53e0b5715e4226fe993ff
[INFO] running `Command { std: "docker" "start" "-a" "c35baa8d97fa60e762e37e39741cd768e14ba7b160a53e0b5715e4226fe993ff", kill_on_drop: false }`
[INFO] [stderr]    Compiling virtual-node v0.2.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:619:13
[INFO] [stdout]     |
[INFO] [stdout] 619 |         let mut text = VirtualNode::Text(VText::new("Hello world"));
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` 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 0.89s
[INFO] running `Command { std: "docker" "inspect" "c35baa8d97fa60e762e37e39741cd768e14ba7b160a53e0b5715e4226fe993ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c35baa8d97fa60e762e37e39741cd768e14ba7b160a53e0b5715e4226fe993ff", kill_on_drop: false }`
[INFO] [stdout] c35baa8d97fa60e762e37e39741cd768e14ba7b160a53e0b5715e4226fe993ff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7ea67b32874431e0b30ccabac9256c94d7ecc451ae8a0fbdedda159462f48dd7
[INFO] running `Command { std: "docker" "start" "-a" "7ea67b32874431e0b30ccabac9256c94d7ecc451ae8a0fbdedda159462f48dd7", kill_on_drop: false }`
[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 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/virtual_node-0f70bfa5fc9e5e4e)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::self_closing_tag_to_string ... ok
[INFO] [stdout] test tests::to_string ... ok
[INFO] [stdout] test virtual_node_test_utils::tests::label_equals ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[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; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7ea67b32874431e0b30ccabac9256c94d7ecc451ae8a0fbdedda159462f48dd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ea67b32874431e0b30ccabac9256c94d7ecc451ae8a0fbdedda159462f48dd7", kill_on_drop: false }`
[INFO] [stdout] 7ea67b32874431e0b30ccabac9256c94d7ecc451ae8a0fbdedda159462f48dd7