[INFO] fetching crate tree-flat 0.1.3...
[INFO] testing tree-flat-0.1.3 against 1.100.0-beta.1 for beta-1.100-2
[INFO] extracting crate tree-flat 0.1.3 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate tree-flat 0.1.3
[INFO] finished tweaking crates.io crate tree-flat 0.1.3
[INFO] tweaked toml for crates.io crate tree-flat 0.1.3 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tree-flat 0.1.3 on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate tree-flat 0.1.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] e93f7eea6aa464934692ed441612a0fd253cbefa5056963f981dbe9c81349713
[INFO] running `Command { std: "docker" "start" "e93f7eea6aa464934692ed441612a0fd253cbefa5056963f981dbe9c81349713", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e93f7eea6aa464934692ed441612a0fd253cbefa5056963f981dbe9c81349713", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "e93f7eea6aa464934692ed441612a0fd253cbefa5056963f981dbe9c81349713" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e93f7eea6aa464934692ed441612a0fd253cbefa5056963f981dbe9c81349713", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "e93f7eea6aa464934692ed441612a0fd253cbefa5056963f981dbe9c81349713" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling tree-flat v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/node.rs:139:17
[INFO] [stdout]     |
[INFO] [stdout] 139 |     pub fn push(&mut self, data: T) -> TreeMut<T>
[INFO] [stdout]     |                 ^^^^^^^^^              ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 139 |     pub fn push(&mut self, data: T) -> TreeMut<'_, T>
[INFO] [stdout]     |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tree.rs:186:30
[INFO] [stdout]     |
[INFO] [stdout] 186 |     pub(crate) fn _make_node(&self, id: NodeId) -> Node<T> {
[INFO] [stdout]     |                              ^^^^^                 ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                              |
[INFO] [stdout]     |                              the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 186 |     pub(crate) fn _make_node(&self, id: NodeId) -> Node<'_, T> {
[INFO] [stdout]     |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tree.rs:194:34
[INFO] [stdout]     |
[INFO] [stdout] 194 |     pub(crate) fn _make_node_mut(&mut self, id: NodeId) -> NodeMut<T> {
[INFO] [stdout]     |                                  ^^^^^^^^^                 ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                                  |
[INFO] [stdout]     |                                  the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 194 |     pub(crate) fn _make_node_mut(&mut self, id: NodeId) -> NodeMut<'_, T> {
[INFO] [stdout]     |                                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tree.rs:201:34
[INFO] [stdout]     |
[INFO] [stdout] 201 |     pub(crate) fn _make_tree_mut(&mut self, id: NodeId, parent: NodeId) -> TreeMut<T> {
[INFO] [stdout]     |                                  ^^^^^^^^^ the lifetime is elided here     ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 201 |     pub(crate) fn _make_tree_mut(&mut self, id: NodeId, parent: NodeId) -> TreeMut<'_, T> {
[INFO] [stdout]     |                                                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tree.rs:285:26
[INFO] [stdout]     |
[INFO] [stdout] 285 |     pub fn tree_root_mut(&mut self) -> TreeMut<T> {
[INFO] [stdout]     |                          ^^^^^^^^^     ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 285 |     pub fn tree_root_mut(&mut self) -> TreeMut<'_, T> {
[INFO] [stdout]     |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tree.rs:290:26
[INFO] [stdout]     |
[INFO] [stdout] 290 |     pub fn tree_node_mut(&mut self, id: NodeId) -> Option<TreeMut<T>> {
[INFO] [stdout]     |                          ^^^^^^^^^                        ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 290 |     pub fn tree_node_mut(&mut self, id: NodeId) -> Option<TreeMut<'_, T>> {
[INFO] [stdout]     |                                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tree.rs:299:17
[INFO] [stdout]     |
[INFO] [stdout] 299 |     pub fn node(&self, id: NodeId) -> Option<Node<T>> {
[INFO] [stdout]     |                 ^^^^^                        ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 299 |     pub fn node(&self, id: NodeId) -> Option<Node<'_, T>> {
[INFO] [stdout]     |                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tree.rs:308:17
[INFO] [stdout]     |
[INFO] [stdout] 308 |     pub fn root(&self) -> Node<T> {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 308 |     pub fn root(&self) -> Node<'_, T> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tree.rs:313:21
[INFO] [stdout]     |
[INFO] [stdout] 313 |     pub fn node_mut(&mut self, id: NodeId) -> Option<NodeMut<T>> {
[INFO] [stdout]     |                     ^^^^^^^^^                        ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 313 |     pub fn node_mut(&mut self, id: NodeId) -> Option<NodeMut<'_, T>> {
[INFO] [stdout]     |                                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tree.rs:331:22
[INFO] [stdout]     |
[INFO] [stdout] 331 |     pub fn into_iter(&self) -> IntoIter<T> {
[INFO] [stdout]     |                      ^^^^^     ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 331 |     pub fn into_iter(&self) -> IntoIter<'_, T> {
[INFO] [stdout]     |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `Command { std: "docker" "inspect" "e93f7eea6aa464934692ed441612a0fd253cbefa5056963f981dbe9c81349713", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "e93f7eea6aa464934692ed441612a0fd253cbefa5056963f981dbe9c81349713" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]    Compiling ryu v1.0.9
[INFO] [stderr]    Compiling half v1.8.2
[INFO] [stderr]    Compiling os_str_bytes v6.3.1
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling itoa v1.0.1
[INFO] [stderr]    Compiling plotters-backend v0.3.4
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling ciborium-io v0.2.0
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling cast v0.3.0
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling itertools v0.10.3
[INFO] [stderr]    Compiling textwrap v0.16.0
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling oorandom v11.1.3
[INFO] [stderr]    Compiling plotters-svg v0.3.3
[INFO] [stderr]    Compiling clap_lex v0.2.4
[INFO] [stderr]    Compiling ciborium-ll v0.2.0
[INFO] [stderr]    Compiling anes v0.1.6
[INFO] [stderr]    Compiling ego-tree v0.6.2
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/node.rs:139:17
[INFO] [stdout]     |
[INFO] [stdout] 139 |     pub fn push(&mut self, data: T) -> TreeMut<T>
[INFO] [stdout]     |                 ^^^^^^^^^              ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 139 |     pub fn push(&mut self, data: T) -> TreeMut<'_, T>
[INFO] [stdout]     |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tree.rs:186:30
[INFO] [stdout]     |
[INFO] [stdout] 186 |     pub(crate) fn _make_node(&self, id: NodeId) -> Node<T> {
[INFO] [stdout]     |                              ^^^^^                 ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                              |
[INFO] [stdout]     |                              the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 186 |     pub(crate) fn _make_node(&self, id: NodeId) -> Node<'_, T> {
[INFO] [stdout]     |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tree.rs:194:34
[INFO] [stdout]     |
[INFO] [stdout] 194 |     pub(crate) fn _make_node_mut(&mut self, id: NodeId) -> NodeMut<T> {
[INFO] [stdout]     |                                  ^^^^^^^^^                 ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                                  |
[INFO] [stdout]     |                                  the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 194 |     pub(crate) fn _make_node_mut(&mut self, id: NodeId) -> NodeMut<'_, T> {
[INFO] [stdout]     |                                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tree.rs:201:34
[INFO] [stdout]     |
[INFO] [stdout] 201 |     pub(crate) fn _make_tree_mut(&mut self, id: NodeId, parent: NodeId) -> TreeMut<T> {
[INFO] [stdout]     |                                  ^^^^^^^^^ the lifetime is elided here     ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 201 |     pub(crate) fn _make_tree_mut(&mut self, id: NodeId, parent: NodeId) -> TreeMut<'_, T> {
[INFO] [stdout]     |                                                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tree.rs:285:26
[INFO] [stdout]     |
[INFO] [stdout] 285 |     pub fn tree_root_mut(&mut self) -> TreeMut<T> {
[INFO] [stdout]     |                          ^^^^^^^^^     ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 285 |     pub fn tree_root_mut(&mut self) -> TreeMut<'_, T> {
[INFO] [stdout]     |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tree.rs:290:26
[INFO] [stdout]     |
[INFO] [stdout] 290 |     pub fn tree_node_mut(&mut self, id: NodeId) -> Option<TreeMut<T>> {
[INFO] [stdout]     |                          ^^^^^^^^^                        ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 290 |     pub fn tree_node_mut(&mut self, id: NodeId) -> Option<TreeMut<'_, T>> {
[INFO] [stdout]     |                                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tree.rs:299:17
[INFO] [stdout]     |
[INFO] [stdout] 299 |     pub fn node(&self, id: NodeId) -> Option<Node<T>> {
[INFO] [stdout]     |                 ^^^^^                        ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 299 |     pub fn node(&self, id: NodeId) -> Option<Node<'_, T>> {
[INFO] [stdout]     |                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tree.rs:308:17
[INFO] [stdout]     |
[INFO] [stdout] 308 |     pub fn root(&self) -> Node<T> {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 308 |     pub fn root(&self) -> Node<'_, T> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tree.rs:313:21
[INFO] [stdout]     |
[INFO] [stdout] 313 |     pub fn node_mut(&mut self, id: NodeId) -> Option<NodeMut<T>> {
[INFO] [stdout]     |                     ^^^^^^^^^                        ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 313 |     pub fn node_mut(&mut self, id: NodeId) -> Option<NodeMut<'_, T>> {
[INFO] [stdout]     |                                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tree.rs:331:22
[INFO] [stdout]     |
[INFO] [stdout] 331 |     pub fn into_iter(&self) -> IntoIter<T> {
[INFO] [stdout]     |                      ^^^^^     ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 331 |     pub fn into_iter(&self) -> IntoIter<'_, T> {
[INFO] [stdout]     |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v3.2.23
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling plotters v0.3.4
[INFO] [stderr]    Compiling criterion-plot v0.5.0
[INFO] [stderr]    Compiling ciborium v0.2.0
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling criterion v0.4.0
[INFO] [stderr]    Compiling tree-flat v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/node.rs:139:17
[INFO] [stdout]     |
[INFO] [stdout] 139 |     pub fn push(&mut self, data: T) -> TreeMut<T>
[INFO] [stdout]     |                 ^^^^^^^^^              ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 139 |     pub fn push(&mut self, data: T) -> TreeMut<'_, T>
[INFO] [stdout]     |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tree.rs:186:30
[INFO] [stdout]     |
[INFO] [stdout] 186 |     pub(crate) fn _make_node(&self, id: NodeId) -> Node<T> {
[INFO] [stdout]     |                              ^^^^^                 ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                              |
[INFO] [stdout]     |                              the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 186 |     pub(crate) fn _make_node(&self, id: NodeId) -> Node<'_, T> {
[INFO] [stdout]     |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tree.rs:194:34
[INFO] [stdout]     |
[INFO] [stdout] 194 |     pub(crate) fn _make_node_mut(&mut self, id: NodeId) -> NodeMut<T> {
[INFO] [stdout]     |                                  ^^^^^^^^^                 ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                                  |
[INFO] [stdout]     |                                  the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 194 |     pub(crate) fn _make_node_mut(&mut self, id: NodeId) -> NodeMut<'_, T> {
[INFO] [stdout]     |                                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tree.rs:201:34
[INFO] [stdout]     |
[INFO] [stdout] 201 |     pub(crate) fn _make_tree_mut(&mut self, id: NodeId, parent: NodeId) -> TreeMut<T> {
[INFO] [stdout]     |                                  ^^^^^^^^^ the lifetime is elided here     ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 201 |     pub(crate) fn _make_tree_mut(&mut self, id: NodeId, parent: NodeId) -> TreeMut<'_, T> {
[INFO] [stdout]     |                                                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tree.rs:285:26
[INFO] [stdout]     |
[INFO] [stdout] 285 |     pub fn tree_root_mut(&mut self) -> TreeMut<T> {
[INFO] [stdout]     |                          ^^^^^^^^^     ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 285 |     pub fn tree_root_mut(&mut self) -> TreeMut<'_, T> {
[INFO] [stdout]     |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tree.rs:290:26
[INFO] [stdout]     |
[INFO] [stdout] 290 |     pub fn tree_node_mut(&mut self, id: NodeId) -> Option<TreeMut<T>> {
[INFO] [stdout]     |                          ^^^^^^^^^                        ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 290 |     pub fn tree_node_mut(&mut self, id: NodeId) -> Option<TreeMut<'_, T>> {
[INFO] [stdout]     |                                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tree.rs:299:17
[INFO] [stdout]     |
[INFO] [stdout] 299 |     pub fn node(&self, id: NodeId) -> Option<Node<T>> {
[INFO] [stdout]     |                 ^^^^^                        ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 299 |     pub fn node(&self, id: NodeId) -> Option<Node<'_, T>> {
[INFO] [stdout]     |                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tree.rs:308:17
[INFO] [stdout]     |
[INFO] [stdout] 308 |     pub fn root(&self) -> Node<T> {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 308 |     pub fn root(&self) -> Node<'_, T> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tree.rs:313:21
[INFO] [stdout]     |
[INFO] [stdout] 313 |     pub fn node_mut(&mut self, id: NodeId) -> Option<NodeMut<T>> {
[INFO] [stdout]     |                     ^^^^^^^^^                        ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 313 |     pub fn node_mut(&mut self, id: NodeId) -> Option<NodeMut<'_, T>> {
[INFO] [stdout]     |                                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tree.rs:331:22
[INFO] [stdout]     |
[INFO] [stdout] 331 |     pub fn into_iter(&self) -> IntoIter<T> {
[INFO] [stdout]     |                      ^^^^^     ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 331 |     pub fn into_iter(&self) -> IntoIter<'_, T> {
[INFO] [stdout]     |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 25.21s
[INFO] running `Command { std: "docker" "inspect" "e93f7eea6aa464934692ed441612a0fd253cbefa5056963f981dbe9c81349713", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "e93f7eea6aa464934692ed441612a0fd253cbefa5056963f981dbe9c81349713" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/node.rs:139:17
[INFO] [stderr]     |
[INFO] [stderr] 139 |     pub fn push(&mut self, data: T) -> TreeMut<T>
[INFO] [stderr]     |                 ^^^^^^^^^              ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 139 |     pub fn push(&mut self, data: T) -> TreeMut<'_, T>
[INFO] [stderr]     |                                                +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/tree.rs:186:30
[INFO] [stderr]     |
[INFO] [stderr] 186 |     pub(crate) fn _make_node(&self, id: NodeId) -> Node<T> {
[INFO] [stderr]     |                              ^^^^^                 ^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                              |
[INFO] [stderr]     |                              the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 186 |     pub(crate) fn _make_node(&self, id: NodeId) -> Node<'_, T> {
[INFO] [stderr]     |                                                         +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/tree.rs:194:34
[INFO] [stderr]     |
[INFO] [stderr] 194 |     pub(crate) fn _make_node_mut(&mut self, id: NodeId) -> NodeMut<T> {
[INFO] [stderr]     |                                  ^^^^^^^^^                 ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                                  |
[INFO] [stderr]     |                                  the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 194 |     pub(crate) fn _make_node_mut(&mut self, id: NodeId) -> NodeMut<'_, T> {
[INFO] [stderr]     |                                                                    +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/tree.rs:201:34
[INFO] [stderr]     |
[INFO] [stderr] 201 |     pub(crate) fn _make_tree_mut(&mut self, id: NodeId, parent: NodeId) -> TreeMut<T> {
[INFO] [stderr]     |                                  ^^^^^^^^^ the lifetime is elided here     ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 201 |     pub(crate) fn _make_tree_mut(&mut self, id: NodeId, parent: NodeId) -> TreeMut<'_, T> {
[INFO] [stderr]     |                                                                                    +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/tree.rs:285:26
[INFO] [stderr]     |
[INFO] [stderr] 285 |     pub fn tree_root_mut(&mut self) -> TreeMut<T> {
[INFO] [stderr]     |                          ^^^^^^^^^     ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                          |
[INFO] [stderr]     |                          the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 285 |     pub fn tree_root_mut(&mut self) -> TreeMut<'_, T> {
[INFO] [stderr]     |                                                +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/tree.rs:290:26
[INFO] [stderr]     |
[INFO] [stderr] 290 |     pub fn tree_node_mut(&mut self, id: NodeId) -> Option<TreeMut<T>> {
[INFO] [stderr]     |                          ^^^^^^^^^                        ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                          |
[INFO] [stderr]     |                          the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 290 |     pub fn tree_node_mut(&mut self, id: NodeId) -> Option<TreeMut<'_, T>> {
[INFO] [stderr]     |                                                                   +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/tree.rs:299:17
[INFO] [stderr]     |
[INFO] [stderr] 299 |     pub fn node(&self, id: NodeId) -> Option<Node<T>> {
[INFO] [stderr]     |                 ^^^^^                        ^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 299 |     pub fn node(&self, id: NodeId) -> Option<Node<'_, T>> {
[INFO] [stderr]     |                                                   +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/tree.rs:308:17
[INFO] [stderr]     |
[INFO] [stderr] 308 |     pub fn root(&self) -> Node<T> {
[INFO] [stderr]     |                 ^^^^^     ^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 308 |     pub fn root(&self) -> Node<'_, T> {
[INFO] [stderr]     |                                +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/tree.rs:313:21
[INFO] [stderr]     |
[INFO] [stderr] 313 |     pub fn node_mut(&mut self, id: NodeId) -> Option<NodeMut<T>> {
[INFO] [stderr]     |                     ^^^^^^^^^                        ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 313 |     pub fn node_mut(&mut self, id: NodeId) -> Option<NodeMut<'_, T>> {
[INFO] [stderr]     |                                                              +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/tree.rs:331:22
[INFO] [stderr]     |
[INFO] [stderr] 331 |     pub fn into_iter(&self) -> IntoIter<T> {
[INFO] [stderr]     |                      ^^^^^     ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                      |
[INFO] [stderr]     |                      the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 331 |     pub fn into_iter(&self) -> IntoIter<'_, T> {
[INFO] [stderr]     |                                         +++
[INFO] [stderr] 
[INFO] [stderr] warning: `tree-flat` (lib) generated 10 warnings (run `cargo fix --lib -p tree-flat` to apply 10 suggestions)
[INFO] [stderr] warning: `tree-flat` (lib test) generated 10 warnings (10 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/build/tree-flat/23b1883a4e4bd8b8/out/tree_flat-23b1883a4e4bd8b8)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test tests::create ... ok
[INFO] [stdout] test tests::iter ... ok
[INFO] [stdout] test tests::parents ... ok
[INFO] [stdout] test tests::create_manual ... ok
[INFO] [stdout] test tests::childs ... ok
[INFO] [stdout] test tests::create_push_direct ... ok
[INFO] [stdout] test tests::siblings ... ok
[INFO] [stdout] test tests::create_hierarchy ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.12s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tree_flat
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 45) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.24s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e93f7eea6aa464934692ed441612a0fd253cbefa5056963f981dbe9c81349713", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e93f7eea6aa464934692ed441612a0fd253cbefa5056963f981dbe9c81349713", kill_on_drop: false }`
[INFO] [stdout] e93f7eea6aa464934692ed441612a0fd253cbefa5056963f981dbe9c81349713
