[INFO] updating cached repository https://github.com/u1roh/graph_in_rust_with_unsafe [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] [stderr] From https://github.com/u1roh/graph_in_rust_with_unsafe [INFO] [stderr] 5ba3345..578f9fd master -> master [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 578f9fd5743ff9c3dfd1d2460ebcf84434cc4d46 [INFO] checking u1roh/graph_in_rust_with_unsafe against master#6250d56355d72264ece721e8d0dc95b16a6824b1 for pr-68350 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fu1roh%2Fgraph_in_rust_with_unsafe" "/workspace/builds/worker-6/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/u1roh/graph_in_rust_with_unsafe on toolchain 6250d56355d72264ece721e8d0dc95b16a6824b1 [INFO] running `"/workspace/cargo-home/bin/cargo" "+6250d56355d72264ece721e8d0dc95b16a6824b1" "read-manifest" "--manifest-path" "Cargo.toml"` [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-6/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 `"/workspace/cargo-home/bin/cargo" "+6250d56355d72264ece721e8d0dc95b16a6824b1" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+6250d56355d72264ece721e8d0dc95b16a6824b1" "check" "--frozen" "--all" "--all-targets"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] b5d263107517e980780b826acb238d71cbd37db18caac0d9d33386236c52bf9a [INFO] running `"docker" "start" "-a" "b5d263107517e980780b826acb238d71cbd37db18caac0d9d33386236c52bf9a"` [INFO] [stderr] Checking mepoo v0.1.0 (https://github.com/u1roh/mepoo.git#e70d34c2) [INFO] [stderr] Checking graph_in_rust_with_unsafe v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused import: `mepoo::Ref` [INFO] [stderr] --> src/test06_nodes_in_mepoo.rs:131:5 [INFO] [stderr] | [INFO] [stderr] 131 | use mepoo::Ref; [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `mepoo::Ref` [INFO] [stderr] --> src/test06_nodes_in_mepoo.rs:131:5 [INFO] [stderr] | [INFO] [stderr] 131 | use mepoo::Ref; [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function cannot return without recursing [INFO] [stderr] --> src/test06_nodes_in_mepoo.rs:36:9 [INFO] [stderr] | [INFO] [stderr] 36 | fn deref(&self) -> &Self::Target { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing [INFO] [stderr] 37 | self.deref() [INFO] [stderr] | ------------ recursive call site [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unconditional_recursion)]` on by default [INFO] [stderr] = help: a `loop` may express intention better if this is on purpose [INFO] [stderr] [INFO] [stderr] warning: function cannot return without recursing [INFO] [stderr] --> src/test06_nodes_in_mepoo.rs:41:9 [INFO] [stderr] | [INFO] [stderr] 41 | fn deref_mut(&mut self) -> &mut Self::Target { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing [INFO] [stderr] 42 | self.deref_mut() [INFO] [stderr] | ---------------- recursive call site [INFO] [stderr] | [INFO] [stderr] = help: a `loop` may express intention better if this is on purpose [INFO] [stderr] [INFO] [stderr] warning: method is never used: `is_sentinel` [INFO] [stderr] --> src/test05_nodes_in_hashmap.rs:54:9 [INFO] [stderr] | [INFO] [stderr] 54 | pub fn is_sentinel(&self) -> bool { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `sentinel` [INFO] [stderr] --> src/test05_nodes_in_hashmap.rs:107:9 [INFO] [stderr] | [INFO] [stderr] 107 | pub fn sentinel(&self) -> *const Node { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `get_mut_unchecked` [INFO] [stderr] --> src/test05_nodes_in_hashmap.rs:123:9 [INFO] [stderr] | [INFO] [stderr] 123 | pub unsafe fn get_mut_unchecked(&mut self, ptr: *const Node) -> Option<&mut Node> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `get_mut` [INFO] [stderr] --> src/test05_nodes_in_hashmap.rs:128:9 [INFO] [stderr] | [INFO] [stderr] 128 | pub fn get_mut(&mut self, ptr: *const Node) -> Option> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `tail` [INFO] [stderr] --> src/test05_nodes_in_hashmap.rs:135:9 [INFO] [stderr] | [INFO] [stderr] 135 | pub fn tail(&self) -> &Node { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `is_empty` [INFO] [stderr] --> src/test05_nodes_in_hashmap.rs:138:9 [INFO] [stderr] | [INFO] [stderr] 138 | pub fn is_empty(&self) -> bool { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `push_front` [INFO] [stderr] --> src/test05_nodes_in_hashmap.rs:164:9 [INFO] [stderr] | [INFO] [stderr] 164 | pub fn push_front(&mut self, value: T) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `is_sentinel` [INFO] [stderr] --> src/test06_nodes_in_mepoo.rs:11:9 [INFO] [stderr] | [INFO] [stderr] 11 | pub fn is_sentinel(&self) -> bool { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `get_mut_unchecked` [INFO] [stderr] --> src/test06_nodes_in_mepoo.rs:71:9 [INFO] [stderr] | [INFO] [stderr] 71 | pub unsafe fn get_mut_unchecked(&mut self, ptr: Ptr>) -> Option<&mut Node> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `get_mut` [INFO] [stderr] --> src/test06_nodes_in_mepoo.rs:74:9 [INFO] [stderr] | [INFO] [stderr] 74 | pub fn get_mut(&mut self, ptr: Ptr>) -> Option> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `tail` [INFO] [stderr] --> src/test06_nodes_in_mepoo.rs:80:9 [INFO] [stderr] | [INFO] [stderr] 80 | pub fn tail(&self) -> Ref> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `is_empty` [INFO] [stderr] --> src/test06_nodes_in_mepoo.rs:83:9 [INFO] [stderr] | [INFO] [stderr] 83 | pub fn is_empty(&self) -> bool { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `push_front` [INFO] [stderr] --> src/test06_nodes_in_mepoo.rs:107:9 [INFO] [stderr] | [INFO] [stderr] 107 | pub fn push_front(&mut self, value: T) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/test03_two_nodes_graph.rs:17:13 [INFO] [stderr] | [INFO] [stderr] 17 | let mut node2 = Box::new(Node { [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function cannot return without recursing [INFO] [stderr] --> src/test06_nodes_in_mepoo.rs:36:9 [INFO] [stderr] | [INFO] [stderr] 36 | fn deref(&self) -> &Self::Target { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing [INFO] [stderr] 37 | self.deref() [INFO] [stderr] | ------------ recursive call site [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unconditional_recursion)]` on by default [INFO] [stderr] = help: a `loop` may express intention better if this is on purpose [INFO] [stderr] [INFO] [stderr] warning: function cannot return without recursing [INFO] [stderr] --> src/test06_nodes_in_mepoo.rs:41:9 [INFO] [stderr] | [INFO] [stderr] 41 | fn deref_mut(&mut self) -> &mut Self::Target { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing [INFO] [stderr] 42 | self.deref_mut() [INFO] [stderr] | ---------------- recursive call site [INFO] [stderr] | [INFO] [stderr] = help: a `loop` may express intention better if this is on purpose [INFO] [stderr] [INFO] [stderr] warning: method is never used: `sentinel` [INFO] [stderr] --> src/test05_nodes_in_hashmap.rs:107:9 [INFO] [stderr] | [INFO] [stderr] 107 | pub fn sentinel(&self) -> *const Node { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.90s [INFO] running `"docker" "inspect" "b5d263107517e980780b826acb238d71cbd37db18caac0d9d33386236c52bf9a"` [INFO] running `"docker" "rm" "-f" "b5d263107517e980780b826acb238d71cbd37db18caac0d9d33386236c52bf9a"` [INFO] [stdout] b5d263107517e980780b826acb238d71cbd37db18caac0d9d33386236c52bf9a