[INFO] cloning repository https://github.com/u1roh/graph_in_rust_with_unsafe
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/u1roh/graph_in_rust_with_unsafe" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fu1roh%2Fgraph_in_rust_with_unsafe", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fu1roh%2Fgraph_in_rust_with_unsafe'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 05589b16939a5f01e51d2bdd5167cc70fc0fe4f2
[INFO] checking u1roh/graph_in_rust_with_unsafe against master#5518eaa946291f00471af8b254b2a1715f234882 for pr-120393
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fu1roh%2Fgraph_in_rust_with_unsafe" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/u1roh/graph_in_rust_with_unsafe on toolchain 5518eaa946291f00471af8b254b2a1715f234882
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/u1roh/graph_in_rust_with_unsafe
[INFO] finished tweaking git repo https://github.com/u1roh/graph_in_rust_with_unsafe
[INFO] tweaked toml for git repo https://github.com/u1roh/graph_in_rust_with_unsafe written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/u1roh/graph_in_rust_with_unsafe 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" "+5518eaa946291f00471af8b254b2a1715f234882" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/u1roh/mepoo.git`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking u1roh/graph_in_rust_with_unsafe against try#7622c0f807a4e13c4db886a1681bf343795692df+rustflags=-Dnon_local_definitions for pr-120393
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fu1roh%2Fgraph_in_rust_with_unsafe" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/u1roh/graph_in_rust_with_unsafe on toolchain 7622c0f807a4e13c4db886a1681bf343795692df
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7622c0f807a4e13c4db886a1681bf343795692df" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/u1roh/graph_in_rust_with_unsafe
[INFO] finished tweaking git repo https://github.com/u1roh/graph_in_rust_with_unsafe
[INFO] tweaked toml for git repo https://github.com/u1roh/graph_in_rust_with_unsafe written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/u1roh/graph_in_rust_with_unsafe 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" "+7622c0f807a4e13c4db886a1681bf343795692df" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+7622c0f807a4e13c4db886a1681bf343795692df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c3aadc931f6ec7d63346b14a4d54b2404c95e85c4aaf44e202e1e0fe3643a752
[INFO] running `Command { std: "docker" "start" "-a" "c3aadc931f6ec7d63346b14a4d54b2404c95e85c4aaf44e202e1e0fe3643a752", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c3aadc931f6ec7d63346b14a4d54b2404c95e85c4aaf44e202e1e0fe3643a752", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3aadc931f6ec7d63346b14a4d54b2404c95e85c4aaf44e202e1e0fe3643a752", kill_on_drop: false }`
[INFO] [stdout] c3aadc931f6ec7d63346b14a4d54b2404c95e85c4aaf44e202e1e0fe3643a752
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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 -Dnon_local_definitions" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+7622c0f807a4e13c4db886a1681bf343795692df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f3be4b048cd29c65e27f2b80551a41a08436fe8916e07935684936a1a9496150
[INFO] running `Command { std: "docker" "start" "-a" "f3be4b048cd29c65e27f2b80551a41a08436fe8916e07935684936a1a9496150", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking typed-arena v2.0.1
[INFO] [stderr]     Checking mepoo v0.1.0 (https://github.com/u1roh/mepoo.git#dd29e280)
[INFO] [stderr]     Checking c2-chacha v0.2.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking graph_in_rust_with_unsafe v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `list::*`
[INFO] [stdout]    --> src/test07_nodes_in_arena.rs:357:9
[INFO] [stdout]     |
[INFO] [stdout] 357 | pub use list::*;
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `sentinel`, `get_mut_unchecked`, `get_mut`, `tail`, `is_empty`, and `push_front` are never used
[INFO] [stdout]    --> src/test05_nodes_in_hashmap.rs:99:16
[INFO] [stdout]     |
[INFO] [stdout] 86  |     impl<T> List<T> {
[INFO] [stdout]     |     --------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 99  |         pub fn sentinel(&self) -> *const Node<T> {
[INFO] [stdout]     |                ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 115 |         pub unsafe fn get_mut_unchecked(&mut self, ptr: *const Node<T>) -> Option<&mut Node<T>> {
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 120 |         pub fn get_mut(&mut self, ptr: *const Node<T>) -> Option<NodeMut<T>> {
[INFO] [stdout]     |                ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 127 |         pub fn tail(&self) -> &Node<T> {
[INFO] [stdout]     |                ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 130 |         pub fn is_empty(&self) -> bool {
[INFO] [stdout]     |                ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 155 |         pub fn push_front(&mut self, value: T) {
[INFO] [stdout]     |                ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `get_mut_unchecked`, `get_mut`, `tail`, `is_empty`, and `push_front` are never used
[INFO] [stdout]    --> src/test06_nodes_in_mepoo.rs:64:23
[INFO] [stdout]     |
[INFO] [stdout] 43  |     impl<T> List<T> {
[INFO] [stdout]     |     --------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 64  |         pub unsafe fn get_mut_unchecked(&mut self, ptr: Ptr<Node<T>>) -> Option<&mut Node<T>> {
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 67  |         pub fn get_mut(&mut self, ptr: Ptr<Node<T>>) -> Option<NodeMut<T>> {
[INFO] [stdout]     |                ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 73  |         pub fn tail(&self) -> Ref<Node<T>> {
[INFO] [stdout]     |                ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 76  |         pub fn is_empty(&self) -> bool {
[INFO] [stdout]     |                ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 100 |         pub fn push_front(&mut self, value: T) {
[INFO] [stdout]     |                ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Node` is never constructed
[INFO] [stdout]  --> src/test07_nodes_in_arena.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 |     struct Node<'a, T> {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Graph` is never constructed
[INFO] [stdout]   --> src/test07_nodes_in_arena.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 |     struct Graph<'a, T> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Node` is never constructed
[INFO] [stdout]   --> src/test07_nodes_in_arena.rs:56:16
[INFO] [stdout]    |
[INFO] [stdout] 56 |     pub struct Node<T> {
[INFO] [stdout]    |                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Graph` is never constructed
[INFO] [stdout]   --> src/test07_nodes_in_arena.rs:61:16
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub struct Graph<T> {
[INFO] [stdout]    |                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NodeRefMut` is never constructed
[INFO] [stdout]   --> src/test07_nodes_in_arena.rs:66:16
[INFO] [stdout]    |
[INFO] [stdout] 66 |     pub struct NodeRefMut<'a, T>(&'a mut Node<T>);
[INFO] [stdout]    |                ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `value`, `value_mut`, and `other` are never used
[INFO] [stdout]   --> src/test07_nodes_in_arena.rs:68:16
[INFO] [stdout]    |
[INFO] [stdout] 67 |     impl<'a, T> NodeRefMut<'a, T> {
[INFO] [stdout]    |     ----------------------------- methods in this implementation
[INFO] [stdout] 68 |         pub fn value(&self) -> &T {
[INFO] [stdout]    |                ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 71 |         pub fn value_mut(&mut self) -> &mut T {
[INFO] [stdout]    |                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 74 |         pub fn other(&mut self) -> Self {
[INFO] [stdout]    |                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `construct_graph` is never used
[INFO] [stdout]   --> src/test07_nodes_in_arena.rs:79:12
[INFO] [stdout]    |
[INFO] [stdout] 79 |     pub fn construct_graph() -> Graph<usize> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `other` is never used
[INFO] [stdout]   --> src/test07_nodes_in_arena.rs:95:16
[INFO] [stdout]    |
[INFO] [stdout] 94 |     impl<T> Node<T> {
[INFO] [stdout]    |     --------------- method in this implementation
[INFO] [stdout] 95 |         pub fn other(&self) -> &Self {
[INFO] [stdout]    |                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `head` and `head_mut` are never used
[INFO] [stdout]    --> src/test07_nodes_in_arena.rs:101:16
[INFO] [stdout]     |
[INFO] [stdout] 100 |     impl<T> Graph<T> {
[INFO] [stdout]     |     ---------------- methods in this implementation
[INFO] [stdout] 101 |         pub fn head(&self) -> &Node<T> {
[INFO] [stdout]     |                ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 105 |         pub fn head_mut(&mut self) -> NodeRefMut<T> {
[INFO] [stdout]     |                ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_mut` is never used
[INFO] [stdout]    --> src/test07_nodes_in_arena.rs:232:16
[INFO] [stdout]     |
[INFO] [stdout] 215 |     impl<T> Pool<T> {
[INFO] [stdout]     |     --------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 232 |         pub fn get_mut(&mut self, p: Ptr<T>) -> &mut T {
[INFO] [stdout]     |                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `sentinel`, `tail`, `is_empty`, and `push_front` are never used
[INFO] [stdout]    --> src/test07_nodes_in_arena.rs:295:16
[INFO] [stdout]     |
[INFO] [stdout] 281 |     impl<T> List<T> {
[INFO] [stdout]     |     --------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 295 |         pub fn sentinel(&self) -> Ptr<Node<T>> {
[INFO] [stdout]     |                ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 301 |         pub fn tail(&self) -> Ref<Node<T>> {
[INFO] [stdout]     |                ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 304 |         pub fn is_empty(&self) -> bool {
[INFO] [stdout]     |                ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 338 |         pub fn push_front(&mut self, value: T) {
[INFO] [stdout]     |                ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `value` is never read
[INFO] [stdout]  --> src/test03_two_nodes_graph.rs:7:13
[INFO] [stdout]   |
[INFO] [stdout] 6 |     struct Node<'a, T> {
[INFO] [stdout]   |            ---- field in this struct
[INFO] [stdout] 7 |         pub value: T,
[INFO] [stdout]   |             ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `value` is never used
[INFO] [stdout]    --> src/test03_two_nodes_graph.rs:102:16
[INFO] [stdout]     |
[INFO] [stdout] 101 |     impl<'a, T> NodeRefMut<'a, T> {
[INFO] [stdout]     |     ----------------------------- method in this implementation
[INFO] [stdout] 102 |         pub fn value(&self) -> &T {
[INFO] [stdout]     |                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `value` is never read
[INFO] [stdout]  --> src/test07_nodes_in_arena.rs:6:13
[INFO] [stdout]   |
[INFO] [stdout] 5 |     struct Node<'a, T> {
[INFO] [stdout]   |            ---- field in this struct
[INFO] [stdout] 6 |         pub value: T,
[INFO] [stdout]   |             ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Graph` is never constructed
[INFO] [stdout]   --> src/test07_nodes_in_arena.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 |     struct Graph<'a, T> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `nodes` is never read
[INFO] [stdout]   --> src/test07_nodes_in_arena.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub struct Graph<T> {
[INFO] [stdout]    |                ----- field in this struct
[INFO] [stdout] 62 |         nodes: Arena<Node<T>>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `value` and `other` are never used
[INFO] [stdout]   --> src/test07_nodes_in_arena.rs:68:16
[INFO] [stdout]    |
[INFO] [stdout] 67 |     impl<'a, T> NodeRefMut<'a, T> {
[INFO] [stdout]    |     ----------------------------- methods in this implementation
[INFO] [stdout] 68 |         pub fn value(&self) -> &T {
[INFO] [stdout]    |                ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 74 |         pub fn other(&mut self) -> Self {
[INFO] [stdout]    |                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_mut` is never used
[INFO] [stdout]    --> src/test07_nodes_in_arena.rs:232:16
[INFO] [stdout]     |
[INFO] [stdout] 215 |     impl<T> Pool<T> {
[INFO] [stdout]     |     --------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 232 |         pub fn get_mut(&mut self, p: Ptr<T>) -> &mut T {
[INFO] [stdout]     |                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.10s
[INFO] running `Command { std: "docker" "inspect" "f3be4b048cd29c65e27f2b80551a41a08436fe8916e07935684936a1a9496150", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3be4b048cd29c65e27f2b80551a41a08436fe8916e07935684936a1a9496150", kill_on_drop: false }`
[INFO] [stdout] f3be4b048cd29c65e27f2b80551a41a08436fe8916e07935684936a1a9496150
