[INFO] cloning repository https://github.com/CCBTony/rust_datastruct [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CCBTony/rust_datastruct" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCCBTony%2Frust_datastruct", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCCBTony%2Frust_datastruct'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 25b0fc476ee391f5c4a90961f1ea540285622ffe [INFO] checking CCBTony/rust_datastruct against master#b286722878e18db29a7fbe672be7c4d3b02e8e4d for pr-127655 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCCBTony%2Frust_datastruct" "/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/CCBTony/rust_datastruct on toolchain b286722878e18db29a7fbe672be7c4d3b02e8e4d [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b286722878e18db29a7fbe672be7c4d3b02e8e4d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [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-7-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/CCBTony/rust_datastruct 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" "+b286722878e18db29a7fbe672be7c4d3b02e8e4d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 5 packages to latest compatible versions [INFO] [stderr] Adding getset v0.0.7 (latest: v0.1.2) [INFO] [stderr] Updating `https://mirrors.ustc.edu.cn/crates.io-index/` index [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 CCBTony/rust_datastruct against try#6a5749073f2ebf59d7740d30e50a932a85756ee7 for pr-127655 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCCBTony%2Frust_datastruct" "/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/CCBTony/rust_datastruct on toolchain 6a5749073f2ebf59d7740d30e50a932a85756ee7 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6a5749073f2ebf59d7740d30e50a932a85756ee7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [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-7-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/CCBTony/rust_datastruct 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" "+6a5749073f2ebf59d7740d30e50a932a85756ee7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Locking 5 packages to latest compatible versions [INFO] [stderr] Adding getset v0.0.7 (latest: v0.1.2) [INFO] [stderr] Updating `https://mirrors.ustc.edu.cn/crates.io-index/` index [INFO] [stderr] Adding proc-macro2 v0.4.30 (latest: v1.0.86) [INFO] [stderr] Adding quote v0.6.13 (latest: v1.0.36) [INFO] [stderr] Adding syn v0.15.44 (latest: v2.0.71) [INFO] [stderr] Adding unicode-xid v0.1.0 (latest: v0.2.4) [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded getset v0.0.7 [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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+6a5749073f2ebf59d7740d30e50a932a85756ee7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 3e0fa836f2621da4e26a86262d40430167d7d7a501d461e84101b950eb6ba5a6 [INFO] running `Command { std: "docker" "start" "-a" "3e0fa836f2621da4e26a86262d40430167d7d7a501d461e84101b950eb6ba5a6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "3e0fa836f2621da4e26a86262d40430167d7d7a501d461e84101b950eb6ba5a6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3e0fa836f2621da4e26a86262d40430167d7d7a501d461e84101b950eb6ba5a6", kill_on_drop: false }` [INFO] [stdout] 3e0fa836f2621da4e26a86262d40430167d7d7a501d461e84101b950eb6ba5a6 [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" "-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+6a5749073f2ebf59d7740d30e50a932a85756ee7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 89f34705b598287e51608839d21cf1fbd269848cf6f69252caf059a09ae97ecc [INFO] running `Command { std: "docker" "start" "-a" "89f34705b598287e51608839d21cf1fbd269848cf6f69252caf059a09ae97ecc", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling syn v0.15.44 [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] [stdout] warning: unused import: `tree::*` [INFO] [stdout] --> src/main.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use tree::*; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `super::search::*` [INFO] [stdout] --> src/tree.rs:655:13 [INFO] [stdout] | [INFO] [stdout] 655 | use super::search::*; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `tree::*` [INFO] [stdout] --> src/main.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use tree::*; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `cur_p` [INFO] [stdout] --> src/tree.rs:434:21 [INFO] [stdout] | [INFO] [stdout] 434 | let cur_p = cur.as_ptr(); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_cur_p` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/tree.rs:555:25 [INFO] [stdout] | [INFO] [stdout] 555 | let mut k1 = Rc::clone(&root); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/tree.rs:556:25 [INFO] [stdout] | [INFO] [stdout] 556 | let mut k2 = link_right(Rc::clone(&k1), None).unwrap(); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/tree.rs:557:25 [INFO] [stdout] | [INFO] [stdout] 557 | let mut y = link_left(Rc::clone(&k2), None); [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/tree.rs:567:25 [INFO] [stdout] | [INFO] [stdout] 567 | let mut k1 = Rc::clone(&root); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/tree.rs:568:25 [INFO] [stdout] | [INFO] [stdout] 568 | let mut k3 = link_left(Rc::clone(&k1), None).unwrap(); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/tree.rs:569:25 [INFO] [stdout] | [INFO] [stdout] 569 | let mut k2 = link_right(Rc::clone(&k3), None).unwrap(); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/tree.rs:570:25 [INFO] [stdout] | [INFO] [stdout] 570 | let mut b = link_left(Rc::clone(&k2), None); [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/tree.rs:571:25 [INFO] [stdout] | [INFO] [stdout] 571 | let mut c = link_right(Rc::clone(&k2), None); [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/tree.rs:583:25 [INFO] [stdout] | [INFO] [stdout] 583 | let mut k2 = Rc::clone(&root); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/tree.rs:584:25 [INFO] [stdout] | [INFO] [stdout] 584 | let mut k1 = link_left(Rc::clone(&k2), None).unwrap(); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/tree.rs:585:25 [INFO] [stdout] | [INFO] [stdout] 585 | let mut y = link_left(Rc::clone(&k1), None); [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/tree.rs:595:25 [INFO] [stdout] | [INFO] [stdout] 595 | let mut k3 = Rc::clone(&root); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/tree.rs:596:25 [INFO] [stdout] | [INFO] [stdout] 596 | let mut k1 = link_left(Rc::clone(&k3), None).unwrap(); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/tree.rs:597:25 [INFO] [stdout] | [INFO] [stdout] 597 | let mut k2 = link_right(Rc::clone(&k1), None).unwrap(); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/tree.rs:598:25 [INFO] [stdout] | [INFO] [stdout] 598 | let mut b = link_left(Rc::clone(&k2), None); [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/tree.rs:599:25 [INFO] [stdout] | [INFO] [stdout] 599 | let mut c = link_right(Rc::clone(&k2), None); [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `link_left` is never used [INFO] [stdout] --> src/tree.rs:161:12 [INFO] [stdout] | [INFO] [stdout] 161 | pub fn link_left( [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `link_right` is never used [INFO] [stdout] --> src/tree.rs:185:12 [INFO] [stdout] | [INFO] [stdout] 185 | pub fn link_right( [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `is_left_child` is never used [INFO] [stdout] --> src/tree.rs:211:12 [INFO] [stdout] | [INFO] [stdout] 211 | pub fn is_left_child( [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `take_from_top` is never used [INFO] [stdout] --> src/tree.rs:222:12 [INFO] [stdout] | [INFO] [stdout] 222 | pub fn take_from_top(node: &Rc>>) -> Option>>> { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `SearchTree` is never used [INFO] [stdout] --> src/tree.rs:241:15 [INFO] [stdout] | [INFO] [stdout] 241 | pub trait SearchTree { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `dumps` is never used [INFO] [stdout] --> src/tree.rs:316:12 [INFO] [stdout] | [INFO] [stdout] 316 | pub fn dumps(node: Rc>>, level: i32) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `TranType` is never used [INFO] [stdout] --> src/tree.rs:374:10 [INFO] [stdout] | [INFO] [stdout] 374 | enum TranType { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 25 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `super::search` [INFO] [stdout] --> src/tree.rs:623:13 [INFO] [stdout] | [INFO] [stdout] 623 | use super::search::*; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `cur_p` [INFO] [stdout] --> src/tree.rs:434:21 [INFO] [stdout] | [INFO] [stdout] 434 | let cur_p = cur.as_ptr(); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_cur_p` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/tree.rs:555:25 [INFO] [stdout] | [INFO] [stdout] 555 | let mut k1 = Rc::clone(&root); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/tree.rs:556:25 [INFO] [stdout] | [INFO] [stdout] 556 | let mut k2 = link_right(Rc::clone(&k1), None).unwrap(); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/tree.rs:557:25 [INFO] [stdout] | [INFO] [stdout] 557 | let mut y = link_left(Rc::clone(&k2), None); [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/tree.rs:567:25 [INFO] [stdout] | [INFO] [stdout] 567 | let mut k1 = Rc::clone(&root); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/tree.rs:568:25 [INFO] [stdout] | [INFO] [stdout] 568 | let mut k3 = link_left(Rc::clone(&k1), None).unwrap(); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/tree.rs:569:25 [INFO] [stdout] | [INFO] [stdout] 569 | let mut k2 = link_right(Rc::clone(&k3), None).unwrap(); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/tree.rs:570:25 [INFO] [stdout] | [INFO] [stdout] 570 | let mut b = link_left(Rc::clone(&k2), None); [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/tree.rs:571:25 [INFO] [stdout] | [INFO] [stdout] 571 | let mut c = link_right(Rc::clone(&k2), None); [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/tree.rs:583:25 [INFO] [stdout] | [INFO] [stdout] 583 | let mut k2 = Rc::clone(&root); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/tree.rs:584:25 [INFO] [stdout] | [INFO] [stdout] 584 | let mut k1 = link_left(Rc::clone(&k2), None).unwrap(); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/tree.rs:585:25 [INFO] [stdout] | [INFO] [stdout] 585 | let mut y = link_left(Rc::clone(&k1), None); [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/tree.rs:595:25 [INFO] [stdout] | [INFO] [stdout] 595 | let mut k3 = Rc::clone(&root); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/tree.rs:596:25 [INFO] [stdout] | [INFO] [stdout] 596 | let mut k1 = link_left(Rc::clone(&k3), None).unwrap(); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/tree.rs:597:25 [INFO] [stdout] | [INFO] [stdout] 597 | let mut k2 = link_right(Rc::clone(&k1), None).unwrap(); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/tree.rs:598:25 [INFO] [stdout] | [INFO] [stdout] 598 | let mut b = link_left(Rc::clone(&k2), None); [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/tree.rs:599:25 [INFO] [stdout] | [INFO] [stdout] 599 | let mut c = link_right(Rc::clone(&k2), None); [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `find_node`, `find`, `find_and_clone`, `update`, `height`, and `depth` are never used [INFO] [stdout] --> src/tree.rs:246:12 [INFO] [stdout] | [INFO] [stdout] 241 | pub trait SearchTree { [INFO] [stdout] | ---------- methods in this trait [INFO] [stdout] ... [INFO] [stdout] 246 | fn find_node(&self, key: &String) -> Option>>> { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 254 | fn find(&self, key: &String) -> Option>> { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 261 | fn find_and_clone(&self, key: &String) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 273 | fn update(&mut self, key: &String, value: V) -> Result<(), String> { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 284 | fn height(&self) -> i32 { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 292 | fn depth(&self) -> i32 { self.height() } [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 21 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.84s [INFO] running `Command { std: "docker" "inspect" "89f34705b598287e51608839d21cf1fbd269848cf6f69252caf059a09ae97ecc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "89f34705b598287e51608839d21cf1fbd269848cf6f69252caf059a09ae97ecc", kill_on_drop: false }` [INFO] [stdout] 89f34705b598287e51608839d21cf1fbd269848cf6f69252caf059a09ae97ecc