[INFO] fetching crate pi_tree 0.1.0...
[INFO] building pi_tree-0.1.0 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate pi_tree 0.1.0 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate pi_tree 0.1.0
[INFO] finished tweaking crates.io crate pi_tree 0.1.0
[INFO] tweaked toml for crates.io crate pi_tree 0.1.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate pi_tree 0.1.0 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 19 packages to latest compatible versions
[INFO] [stderr]       Adding pi_slotmap v0.1.17 (available: v0.2.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pi_null v0.1.12
[INFO] [stderr]   Downloaded pi_share v0.4.16
[INFO] [stderr]   Downloaded pi_key_alloter v0.5.2
[INFO] [stderr]   Downloaded pi_slotmap v0.1.17
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8c9d2a9ab67314b6f0261311a233b2b50afe598bd06915a8dde22cf4de2815f9
[INFO] running `Command { std: "docker" "start" "-a" "8c9d2a9ab67314b6f0261311a233b2b50afe598bd06915a8dde22cf4de2815f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8c9d2a9ab67314b6f0261311a233b2b50afe598bd06915a8dde22cf4de2815f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c9d2a9ab67314b6f0261311a233b2b50afe598bd06915a8dde22cf4de2815f9", kill_on_drop: false }`
[INFO] [stdout] 8c9d2a9ab67314b6f0261311a233b2b50afe598bd06915a8dde22cf4de2815f9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f0e6134d894a5e91e694dcddce3ad0642e1dbc4b30b070d245c0cc82a3321f1c
[INFO] running `Command { std: "docker" "start" "-a" "f0e6134d894a5e91e694dcddce3ad0642e1dbc4b30b070d245c0cc82a3321f1c", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling pi_share v0.4.16
[INFO] [stderr]    Compiling pi_null v0.1.12
[INFO] [stderr]    Compiling pi_slotmap v0.1.17
[INFO] [stderr]    Compiling crossbeam-channel v0.5.15
[INFO] [stderr]    Compiling crossbeam-queue v0.3.12
[INFO] [stderr]    Compiling crossbeam-deque v0.8.6
[INFO] [stderr]    Compiling crossbeam v0.8.4
[INFO] [stderr]    Compiling pi_key_alloter v0.5.2
[INFO] [stderr]    Compiling pi_tree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:183:21
[INFO] [stdout]     |
[INFO] [stdout] 183 |     pub fn iter_mut(&mut self, node_children_head: Option<K>) -> ChildrenMutIterator<K, 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]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 183 |     pub fn iter_mut(&mut self, node_children_head: Option<K>) -> ChildrenMutIterator<'_, K, T> {
[INFO] [stdout]     |                                                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:190:17
[INFO] [stdout]     |
[INFO] [stdout] 190 |     pub fn iter(&self, node_children_head: Option<K>) -> ChildrenIterator<K, 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] 190 |     pub fn iter(&self, node_children_head: Option<K>) -> ChildrenIterator<'_, K, T> {
[INFO] [stdout]     |                                                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:197:27
[INFO] [stdout]     |
[INFO] [stdout] 197 |     pub fn recursive_iter(&self, node_children_head: Option<K>) -> RecursiveIterator<K, 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] 197 |     pub fn recursive_iter(&self, node_children_head: Option<K>) -> RecursiveIterator<'_, K, T> {
[INFO] [stdout]     |                                                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.04s
[INFO] running `Command { std: "docker" "inspect" "f0e6134d894a5e91e694dcddce3ad0642e1dbc4b30b070d245c0cc82a3321f1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0e6134d894a5e91e694dcddce3ad0642e1dbc4b30b070d245c0cc82a3321f1c", kill_on_drop: false }`
[INFO] [stdout] f0e6134d894a5e91e694dcddce3ad0642e1dbc4b30b070d245c0cc82a3321f1c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fb7b37c3172090b4dd3be869cc4fab64d9c0f5ef74a6cf88f41be02b25f004f7
[INFO] running `Command { std: "docker" "start" "-a" "fb7b37c3172090b4dd3be869cc4fab64d9c0f5ef74a6cf88f41be02b25f004f7", kill_on_drop: false }`
[INFO] [stderr]    Compiling pi_tree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:183:21
[INFO] [stdout]     |
[INFO] [stdout] 183 |     pub fn iter_mut(&mut self, node_children_head: Option<K>) -> ChildrenMutIterator<K, 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]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 183 |     pub fn iter_mut(&mut self, node_children_head: Option<K>) -> ChildrenMutIterator<'_, K, T> {
[INFO] [stdout]     |                                                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:190:17
[INFO] [stdout]     |
[INFO] [stdout] 190 |     pub fn iter(&self, node_children_head: Option<K>) -> ChildrenIterator<K, 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] 190 |     pub fn iter(&self, node_children_head: Option<K>) -> ChildrenIterator<'_, K, T> {
[INFO] [stdout]     |                                                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:197:27
[INFO] [stdout]     |
[INFO] [stdout] 197 |     pub fn recursive_iter(&self, node_children_head: Option<K>) -> RecursiveIterator<K, 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] 197 |     pub fn recursive_iter(&self, node_children_head: Option<K>) -> RecursiveIterator<'_, K, T> {
[INFO] [stdout]     |                                                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:183:21
[INFO] [stdout]     |
[INFO] [stdout] 183 |     pub fn iter_mut(&mut self, node_children_head: Option<K>) -> ChildrenMutIterator<K, 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]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 183 |     pub fn iter_mut(&mut self, node_children_head: Option<K>) -> ChildrenMutIterator<'_, K, T> {
[INFO] [stdout]     |                                                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:190:17
[INFO] [stdout]     |
[INFO] [stdout] 190 |     pub fn iter(&self, node_children_head: Option<K>) -> ChildrenIterator<K, 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] 190 |     pub fn iter(&self, node_children_head: Option<K>) -> ChildrenIterator<'_, K, T> {
[INFO] [stdout]     |                                                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:197:27
[INFO] [stdout]     |
[INFO] [stdout] 197 |     pub fn recursive_iter(&self, node_children_head: Option<K>) -> RecursiveIterator<K, 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] 197 |     pub fn recursive_iter(&self, node_children_head: Option<K>) -> RecursiveIterator<'_, K, T> {
[INFO] [stdout]     |                                                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `Command { std: "docker" "inspect" "fb7b37c3172090b4dd3be869cc4fab64d9c0f5ef74a6cf88f41be02b25f004f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb7b37c3172090b4dd3be869cc4fab64d9c0f5ef74a6cf88f41be02b25f004f7", kill_on_drop: false }`
[INFO] [stdout] fb7b37c3172090b4dd3be869cc4fab64d9c0f5ef74a6cf88f41be02b25f004f7
