[INFO] updating cached repository https://github.com/CCBTony/rust_datastruct [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] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 25b0fc476ee391f5c4a90961f1ea540285622ffe [INFO] checking CCBTony/rust_datastruct against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCCBTony%2Frust_datastruct" "/workspace/builds/worker-5/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/CCBTony/rust_datastruct on toolchain 45d050cde277b22a755847338f2acc2c7b834141 [INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/CCBTony/rust_datastruct [INFO] finished tweaking git repo https://github.com/CCBTony/rust_datastruct [INFO] tweaked toml for git repo https://github.com/CCBTony/rust_datastruct written to /workspace/builds/worker-5/source/Cargo.toml [INFO] crate git repo https://github.com/CCBTony/rust_datastruct already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Updating crates.io index [INFO] [stderr] error: the lock file /workspace/builds/worker-5/source/Cargo.lock needs to be updated but --locked was passed to prevent this [INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag. [INFO] the lockfile is outdated, regenerating it [INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+45d050cde277b22a755847338f2acc2c7b834141" "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] 02ae5f7a7471c6b1cb24a56cd205885a8bb230b6486c2207eec94e87f8e31e83 [INFO] running `"docker" "start" "-a" "02ae5f7a7471c6b1cb24a56cd205885a8bb230b6486c2207eec94e87f8e31e83"` [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Compiling getset v0.0.7 [INFO] [stderr] Checking rust_study v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused import: `tree::*` [INFO] [stderr] --> src/main.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use tree::*; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `super::search::*` [INFO] [stderr] --> src/tree.rs:655:13 [INFO] [stderr] | [INFO] [stderr] 655 | use super::search::*; [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `tree::*` [INFO] [stderr] --> src/main.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use tree::*; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `cur_p` [INFO] [stderr] --> src/tree.rs:434:21 [INFO] [stderr] | [INFO] [stderr] 434 | let cur_p = cur.as_ptr(); [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_cur_p` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/tree.rs:555:25 [INFO] [stderr] | [INFO] [stderr] 555 | let mut k1 = Rc::clone(&root); [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: variable does not need to be mutable [INFO] [stderr] --> src/tree.rs:556:25 [INFO] [stderr] | [INFO] [stderr] 556 | let mut k2 = link_right(Rc::clone(&k1), None).unwrap(); [INFO] [stderr] | ----^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/tree.rs:557:25 [INFO] [stderr] | [INFO] [stderr] 557 | let mut y = link_left(Rc::clone(&k2), None); [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/tree.rs:567:25 [INFO] [stderr] | [INFO] [stderr] 567 | let mut k1 = Rc::clone(&root); [INFO] [stderr] | ----^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/tree.rs:568:25 [INFO] [stderr] | [INFO] [stderr] 568 | let mut k3 = link_left(Rc::clone(&k1), None).unwrap(); [INFO] [stderr] | ----^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/tree.rs:569:25 [INFO] [stderr] | [INFO] [stderr] 569 | let mut k2 = link_right(Rc::clone(&k3), None).unwrap(); [INFO] [stderr] | ----^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/tree.rs:570:25 [INFO] [stderr] | [INFO] [stderr] 570 | let mut b = link_left(Rc::clone(&k2), None); [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/tree.rs:571:25 [INFO] [stderr] | [INFO] [stderr] 571 | let mut c = link_right(Rc::clone(&k2), None); [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/tree.rs:583:25 [INFO] [stderr] | [INFO] [stderr] 583 | let mut k2 = Rc::clone(&root); [INFO] [stderr] | ----^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/tree.rs:584:25 [INFO] [stderr] | [INFO] [stderr] 584 | let mut k1 = link_left(Rc::clone(&k2), None).unwrap(); [INFO] [stderr] | ----^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/tree.rs:585:25 [INFO] [stderr] | [INFO] [stderr] 585 | let mut y = link_left(Rc::clone(&k1), None); [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/tree.rs:595:25 [INFO] [stderr] | [INFO] [stderr] 595 | let mut k3 = Rc::clone(&root); [INFO] [stderr] | ----^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/tree.rs:596:25 [INFO] [stderr] | [INFO] [stderr] 596 | let mut k1 = link_left(Rc::clone(&k3), None).unwrap(); [INFO] [stderr] | ----^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/tree.rs:597:25 [INFO] [stderr] | [INFO] [stderr] 597 | let mut k2 = link_right(Rc::clone(&k1), None).unwrap(); [INFO] [stderr] | ----^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/tree.rs:598:25 [INFO] [stderr] | [INFO] [stderr] 598 | let mut b = link_left(Rc::clone(&k2), None); [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/tree.rs:599:25 [INFO] [stderr] | [INFO] [stderr] 599 | let mut c = link_right(Rc::clone(&k2), None); [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new` [INFO] [stderr] --> src/tree.rs:46:9 [INFO] [stderr] | [INFO] [stderr] 46 | pub fn new(key: String, value: V) -> Self { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `depth` [INFO] [stderr] --> src/tree.rs:56:9 [INFO] [stderr] | [INFO] [stderr] 56 | pub fn depth(&self) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `dumps` [INFO] [stderr] --> src/tree.rs:316:12 [INFO] [stderr] | [INFO] [stderr] 316 | pub fn dumps(node: Rc>>, level: i32) { [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new` [INFO] [stderr] --> src/tree.rs:473:9 [INFO] [stderr] | [INFO] [stderr] 473 | pub fn new() -> Self { Self { root: None } } [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `min_val` [INFO] [stderr] --> src/tree.rs:475:9 [INFO] [stderr] | [INFO] [stderr] 475 | pub fn min_val(&self) -> Option>> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `min_val_clone` [INFO] [stderr] --> src/tree.rs:493:9 [INFO] [stderr] | [INFO] [stderr] 493 | pub fn min_val_clone(&self) -> Option { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `max_val` [INFO] [stderr] --> src/tree.rs:500:9 [INFO] [stderr] | [INFO] [stderr] 500 | pub fn max_val(&self) -> Option>> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `max_val_clone` [INFO] [stderr] --> src/tree.rs:518:9 [INFO] [stderr] | [INFO] [stderr] 518 | pub fn max_val_clone(&self) -> Option { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `height` [INFO] [stderr] --> src/tree.rs:525:9 [INFO] [stderr] | [INFO] [stderr] 525 | pub fn height(&self) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 27 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: unused import: `super::search` [INFO] [stderr] --> src/tree.rs:623:13 [INFO] [stderr] | [INFO] [stderr] 623 | use super::search::*; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `cur_p` [INFO] [stderr] --> src/tree.rs:434:21 [INFO] [stderr] | [INFO] [stderr] 434 | let cur_p = cur.as_ptr(); [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_cur_p` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/tree.rs:555:25 [INFO] [stderr] | [INFO] [stderr] 555 | let mut k1 = Rc::clone(&root); [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: variable does not need to be mutable [INFO] [stderr] --> src/tree.rs:556:25 [INFO] [stderr] | [INFO] [stderr] 556 | let mut k2 = link_right(Rc::clone(&k1), None).unwrap(); [INFO] [stderr] | ----^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/tree.rs:557:25 [INFO] [stderr] | [INFO] [stderr] 557 | let mut y = link_left(Rc::clone(&k2), None); [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/tree.rs:567:25 [INFO] [stderr] | [INFO] [stderr] 567 | let mut k1 = Rc::clone(&root); [INFO] [stderr] | ----^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/tree.rs:568:25 [INFO] [stderr] | [INFO] [stderr] 568 | let mut k3 = link_left(Rc::clone(&k1), None).unwrap(); [INFO] [stderr] | ----^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/tree.rs:569:25 [INFO] [stderr] | [INFO] [stderr] 569 | let mut k2 = link_right(Rc::clone(&k3), None).unwrap(); [INFO] [stderr] | ----^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/tree.rs:570:25 [INFO] [stderr] | [INFO] [stderr] 570 | let mut b = link_left(Rc::clone(&k2), None); [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/tree.rs:571:25 [INFO] [stderr] | [INFO] [stderr] 571 | let mut c = link_right(Rc::clone(&k2), None); [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/tree.rs:583:25 [INFO] [stderr] | [INFO] [stderr] 583 | let mut k2 = Rc::clone(&root); [INFO] [stderr] | ----^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/tree.rs:584:25 [INFO] [stderr] | [INFO] [stderr] 584 | let mut k1 = link_left(Rc::clone(&k2), None).unwrap(); [INFO] [stderr] | ----^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/tree.rs:585:25 [INFO] [stderr] | [INFO] [stderr] 585 | let mut y = link_left(Rc::clone(&k1), None); [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/tree.rs:595:25 [INFO] [stderr] | [INFO] [stderr] 595 | let mut k3 = Rc::clone(&root); [INFO] [stderr] | ----^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/tree.rs:596:25 [INFO] [stderr] | [INFO] [stderr] 596 | let mut k1 = link_left(Rc::clone(&k3), None).unwrap(); [INFO] [stderr] | ----^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/tree.rs:597:25 [INFO] [stderr] | [INFO] [stderr] 597 | let mut k2 = link_right(Rc::clone(&k1), None).unwrap(); [INFO] [stderr] | ----^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/tree.rs:598:25 [INFO] [stderr] | [INFO] [stderr] 598 | let mut b = link_left(Rc::clone(&k2), None); [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/tree.rs:599:25 [INFO] [stderr] | [INFO] [stderr] 599 | let mut c = link_right(Rc::clone(&k2), None); [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: 20 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 13.72s [INFO] running `"docker" "inspect" "02ae5f7a7471c6b1cb24a56cd205885a8bb230b6486c2207eec94e87f8e31e83"` [INFO] running `"docker" "rm" "-f" "02ae5f7a7471c6b1cb24a56cd205885a8bb230b6486c2207eec94e87f8e31e83"` [INFO] [stdout] 02ae5f7a7471c6b1cb24a56cd205885a8bb230b6486c2207eec94e87f8e31e83