[INFO] fetching crate halcyon 0.0.1...
[INFO] checking halcyon-0.0.1 against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] extracting crate halcyon 0.0.1 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate halcyon 0.0.1 on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate halcyon 0.0.1
[INFO] finished tweaking crates.io crate halcyon 0.0.1
[INFO] tweaked toml for crates.io crate halcyon 0.0.1 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 19afcc925a6fc22181680266d5379bf7dd8e7497b8ec03b2f161639377081e94
[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" "19afcc925a6fc22181680266d5379bf7dd8e7497b8ec03b2f161639377081e94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "19afcc925a6fc22181680266d5379bf7dd8e7497b8ec03b2f161639377081e94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19afcc925a6fc22181680266d5379bf7dd8e7497b8ec03b2f161639377081e94", kill_on_drop: false }`
[INFO] [stdout] 19afcc925a6fc22181680266d5379bf7dd8e7497b8ec03b2f161639377081e94
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 537e2c2308b8866b0fab3ce34141441862f9fbf1954d3629662e1bc10873ceff
[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" "537e2c2308b8866b0fab3ce34141441862f9fbf1954d3629662e1bc10873ceff", kill_on_drop: false }`
[INFO] [stderr]     Checking halcyon v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/dom/mod.rs:10:60
[INFO] [stdout]    |
[INFO] [stdout] 10 |     fn query_selector(&self, selector: &str) -> Rc<RefCell<Element>>;
[INFO] [stdout]    |                                                            ^^^^^^^ help: use `dyn`: `dyn Element`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/dom/mod.rs:17:25
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn new() -> Box<DOM> {
[INFO] [stdout]    |                         ^^^ help: use `dyn`: `dyn DOM`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/dom/mod.rs:28:41
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub fn new(tag: &str) -> Rc<RefCell<Element>> {
[INFO] [stdout]    |                                         ^^^^^^^ help: use `dyn`: `dyn Element`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/dom/mod.rs:42:60
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn query_selector(&self, selector: &str) -> Rc<RefCell<Element>> {
[INFO] [stdout]    |                                                            ^^^^^^^ help: use `dyn`: `dyn Element`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::Halcyon`
[INFO] [stdout]  --> src/extensions/mod.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::Halcyon;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:11:14
[INFO] [stdout]    |
[INFO] [stdout] 11 |     api: Box<DOM>,
[INFO] [stdout]    |              ^^^ help: use `dyn`: `dyn DOM`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:13:25
[INFO] [stdout]    |
[INFO] [stdout] 13 |     extensions: Vec<Box<Extension>>,
[INFO] [stdout]    |                         ^^^^^^^^^ help: use `dyn`: `dyn Extension`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:17:25
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn new(api: Box<DOM>, extensions: Vec<Box<Extension>>) -> Halcyon {
[INFO] [stdout]    |                         ^^^ help: use `dyn`: `dyn DOM`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:17:51
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn new(api: Box<DOM>, extensions: Vec<Box<Extension>>) -> Halcyon {
[INFO] [stdout]    |                                                   ^^^^^^^^^ help: use `dyn`: `dyn Extension`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:57:35
[INFO] [stdout]    |
[INFO] [stdout] 57 |     fn from_element(e: Rc<RefCell<Element>>) -> VirtualNode {
[INFO] [stdout]    |                                   ^^^^^^^ help: use `dyn`: `dyn Element`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:76:32
[INFO] [stdout]    |
[INFO] [stdout] 76 |     element: Option<Rc<RefCell<Element>>>,
[INFO] [stdout]    |                                ^^^^^^^ help: use `dyn`: `dyn Element`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:82:32
[INFO] [stdout]    |
[INFO] [stdout] 82 |     element: Option<Rc<RefCell<Element>>>,
[INFO] [stdout]    |                                ^^^^^^^ help: use `dyn`: `dyn Element`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:111:35
[INFO] [stdout]     |
[INFO] [stdout] 111 |     fn render(element: Rc<RefCell<Element>>, container: VirtualNode) {
[INFO] [stdout]     |                                   ^^^^^^^ help: use `dyn`: `dyn Element`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `MemoryDOM`, `MemoryElement`
[INFO] [stdout]  --> src/lib.rs:1:27
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::dom::{Element, MemoryDOM, MemoryElement, DOM};
[INFO] [stdout]   |                           ^^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::extensions::attributes::Attributes`
[INFO] [stdout]  --> src/lib.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::extensions::attributes::Attributes;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/dom/mod.rs:10:60
[INFO] [stdout]    |
[INFO] [stdout] 10 |     fn query_selector(&self, selector: &str) -> Rc<RefCell<Element>>;
[INFO] [stdout]    |                                                            ^^^^^^^ help: use `dyn`: `dyn Element`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/dom/mod.rs:17:25
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn new() -> Box<DOM> {
[INFO] [stdout]    |                         ^^^ help: use `dyn`: `dyn DOM`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/dom/mod.rs:28:41
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub fn new(tag: &str) -> Rc<RefCell<Element>> {
[INFO] [stdout]    |                                         ^^^^^^^ help: use `dyn`: `dyn Element`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/dom/mod.rs:42:60
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn query_selector(&self, selector: &str) -> Rc<RefCell<Element>> {
[INFO] [stdout]    |                                                            ^^^^^^^ help: use `dyn`: `dyn Element`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::Halcyon`
[INFO] [stdout]  --> src/extensions/mod.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::Halcyon;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:11:14
[INFO] [stdout]    |
[INFO] [stdout] 11 |     api: Box<DOM>,
[INFO] [stdout]    |              ^^^ help: use `dyn`: `dyn DOM`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:13:25
[INFO] [stdout]    |
[INFO] [stdout] 13 |     extensions: Vec<Box<Extension>>,
[INFO] [stdout]    |                         ^^^^^^^^^ help: use `dyn`: `dyn Extension`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:17:25
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn new(api: Box<DOM>, extensions: Vec<Box<Extension>>) -> Halcyon {
[INFO] [stdout]    |                         ^^^ help: use `dyn`: `dyn DOM`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:17:51
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn new(api: Box<DOM>, extensions: Vec<Box<Extension>>) -> Halcyon {
[INFO] [stdout]    |                                                   ^^^^^^^^^ help: use `dyn`: `dyn Extension`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:57:35
[INFO] [stdout]    |
[INFO] [stdout] 57 |     fn from_element(e: Rc<RefCell<Element>>) -> VirtualNode {
[INFO] [stdout]    |                                   ^^^^^^^ help: use `dyn`: `dyn Element`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:76:32
[INFO] [stdout]    |
[INFO] [stdout] 76 |     element: Option<Rc<RefCell<Element>>>,
[INFO] [stdout]    |                                ^^^^^^^ help: use `dyn`: `dyn Element`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:82:32
[INFO] [stdout]    |
[INFO] [stdout] 82 |     element: Option<Rc<RefCell<Element>>>,
[INFO] [stdout]    |                                ^^^^^^^ help: use `dyn`: `dyn Element`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vnode`
[INFO] [stdout]   --> src/extensions/mod.rs:20:20
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn init(&self, vnode: &VirtualNode) {}
[INFO] [stdout]    |                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_vnode`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `empty_vnode`
[INFO] [stdout]   --> src/extensions/mod.rs:21:22
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn create(&self, empty_vnode: &VirtualNode, new_vnode: &VirtualNode) {}
[INFO] [stdout]    |                      ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_empty_vnode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_vnode`
[INFO] [stdout]   --> src/extensions/mod.rs:21:49
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn create(&self, empty_vnode: &VirtualNode, new_vnode: &VirtualNode) {}
[INFO] [stdout]    |                                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_vnode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vnode`
[INFO] [stdout]   --> src/extensions/mod.rs:22:22
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn insert(&self, vnode: &VirtualNode) {}
[INFO] [stdout]    |                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_vnode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `old_vnode`
[INFO] [stdout]   --> src/extensions/mod.rs:23:25
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn pre_patch(&self, old_vnode: &VirtualNode, new_vnode: &VirtualNode) {}
[INFO] [stdout]    |                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_old_vnode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_vnode`
[INFO] [stdout]   --> src/extensions/mod.rs:23:50
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn pre_patch(&self, old_vnode: &VirtualNode, new_vnode: &VirtualNode) {}
[INFO] [stdout]    |                                                  ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_vnode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `old_vnode`
[INFO] [stdout]   --> src/extensions/mod.rs:24:22
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn update(&self, old_vnode: &VirtualNode, new_vnode: &VirtualNode) {}
[INFO] [stdout]    |                      ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_old_vnode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_vnode`
[INFO] [stdout]   --> src/extensions/mod.rs:24:47
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn update(&self, old_vnode: &VirtualNode, new_vnode: &VirtualNode) {}
[INFO] [stdout]    |                                               ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_vnode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `old_vnode`
[INFO] [stdout]   --> src/extensions/mod.rs:25:22
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn handle(&self, old_vnode: &VirtualNode, new_vnode: &VirtualNode) {}
[INFO] [stdout]    |                      ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_old_vnode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_vnode`
[INFO] [stdout]   --> src/extensions/mod.rs:25:47
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn handle(&self, old_vnode: &VirtualNode, new_vnode: &VirtualNode) {}
[INFO] [stdout]    |                                               ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_vnode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vnode`
[INFO] [stdout]   --> src/extensions/mod.rs:26:23
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn destroy(&self, vnode: &VirtualNode) {}
[INFO] [stdout]    |                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_vnode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vnode`
[INFO] [stdout]   --> src/extensions/mod.rs:27:22
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn remove(&self, vnode: &VirtualNode) {}
[INFO] [stdout]    |                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_vnode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `old_vnode`
[INFO] [stdout]   --> src/extensions/attributes.rs:28:22
[INFO] [stdout]    |
[INFO] [stdout] 28 | fn update_attributes(old_vnode: &VirtualNode, new_vnode: &VirtualNode) {}
[INFO] [stdout]    |                      ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_old_vnode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_vnode`
[INFO] [stdout]   --> src/extensions/attributes.rs:28:47
[INFO] [stdout]    |
[INFO] [stdout] 28 | fn update_attributes(old_vnode: &VirtualNode, new_vnode: &VirtualNode) {}
[INFO] [stdout]    |                                               ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_vnode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let mut c = self.current_vnode.borrow();
[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: unused variable: `vnode`
[INFO] [stdout]   --> src/extensions/mod.rs:20:20
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn init(&self, vnode: &VirtualNode) {}
[INFO] [stdout]    |                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_vnode`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `empty_vnode`
[INFO] [stdout]   --> src/extensions/mod.rs:21:22
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn create(&self, empty_vnode: &VirtualNode, new_vnode: &VirtualNode) {}
[INFO] [stdout]    |                      ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_empty_vnode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_vnode`
[INFO] [stdout]   --> src/extensions/mod.rs:21:49
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn create(&self, empty_vnode: &VirtualNode, new_vnode: &VirtualNode) {}
[INFO] [stdout]    |                                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_vnode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vnode`
[INFO] [stdout]   --> src/extensions/mod.rs:22:22
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn insert(&self, vnode: &VirtualNode) {}
[INFO] [stdout]    |                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_vnode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `old_vnode`
[INFO] [stdout]   --> src/extensions/mod.rs:23:25
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn pre_patch(&self, old_vnode: &VirtualNode, new_vnode: &VirtualNode) {}
[INFO] [stdout]    |                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_old_vnode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_vnode`
[INFO] [stdout]   --> src/extensions/mod.rs:23:50
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn pre_patch(&self, old_vnode: &VirtualNode, new_vnode: &VirtualNode) {}
[INFO] [stdout]    |                                                  ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_vnode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `old_vnode`
[INFO] [stdout]   --> src/extensions/mod.rs:24:22
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn update(&self, old_vnode: &VirtualNode, new_vnode: &VirtualNode) {}
[INFO] [stdout]    |                      ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_old_vnode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_vnode`
[INFO] [stdout]   --> src/extensions/mod.rs:24:47
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn update(&self, old_vnode: &VirtualNode, new_vnode: &VirtualNode) {}
[INFO] [stdout]    |                                               ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_vnode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `old_vnode`
[INFO] [stdout]   --> src/extensions/mod.rs:25:22
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn handle(&self, old_vnode: &VirtualNode, new_vnode: &VirtualNode) {}
[INFO] [stdout]    |                      ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_old_vnode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_vnode`
[INFO] [stdout]   --> src/extensions/mod.rs:25:47
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn handle(&self, old_vnode: &VirtualNode, new_vnode: &VirtualNode) {}
[INFO] [stdout]    |                                               ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_vnode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vnode`
[INFO] [stdout]   --> src/extensions/mod.rs:26:23
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn destroy(&self, vnode: &VirtualNode) {}
[INFO] [stdout]    |                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_vnode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vnode`
[INFO] [stdout]   --> src/extensions/mod.rs:27:22
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn remove(&self, vnode: &VirtualNode) {}
[INFO] [stdout]    |                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_vnode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `old_vnode`
[INFO] [stdout]   --> src/extensions/attributes.rs:28:22
[INFO] [stdout]    |
[INFO] [stdout] 28 | fn update_attributes(old_vnode: &VirtualNode, new_vnode: &VirtualNode) {}
[INFO] [stdout]    |                      ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_old_vnode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_vnode`
[INFO] [stdout]   --> src/extensions/attributes.rs:28:47
[INFO] [stdout]    |
[INFO] [stdout] 28 | fn update_attributes(old_vnode: &VirtualNode, new_vnode: &VirtualNode) {}
[INFO] [stdout]    |                                               ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_vnode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 28 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let mut c = self.current_vnode.borrow();
[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: associated function is never used: `new`
[INFO] [stdout]   --> src/dom/mod.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn new() -> Box<DOM> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/dom/mod.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub fn new(tag: &str) -> Rc<RefCell<Element>> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/extensions/attributes.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn new() -> Attributes {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_element`
[INFO] [stdout]   --> src/lib.rs:57:8
[INFO] [stdout]    |
[INFO] [stdout] 57 |     fn from_element(e: Rc<RefCell<Element>>) -> VirtualNode {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 33 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `Command { std: "docker" "inspect" "537e2c2308b8866b0fab3ce34141441862f9fbf1954d3629662e1bc10873ceff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "537e2c2308b8866b0fab3ce34141441862f9fbf1954d3629662e1bc10873ceff", kill_on_drop: false }`
[INFO] [stdout] 537e2c2308b8866b0fab3ce34141441862f9fbf1954d3629662e1bc10873ceff