[INFO] cloning repository https://github.com/jackmead515/rust_ds
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jackmead515/rust_ds" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjackmead515%2Frust_ds", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjackmead515%2Frust_ds'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b63e17a509d2ff27ef0955430e4a67abdd8f1aac
[INFO] checking jackmead515/rust_ds against beta-2021-10-15 for beta-1.56-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjackmead515%2Frust_ds" "/workspace/builds/worker-101/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-101/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jackmead515/rust_ds on toolchain beta-2021-10-15
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jackmead515/rust_ds
[INFO] finished tweaking git repo https://github.com/jackmead515/rust_ds
[INFO] tweaked toml for git repo https://github.com/jackmead515/rust_ds written to /workspace/builds/worker-101/source/Cargo.toml
[INFO] crate git repo https://github.com/jackmead515/rust_ds already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "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-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 693d59d7ff713c7206c3a11a4032f39c8da0306a833d9b631f81eda4266454a6
[INFO] running `Command { std: "docker" "start" "-a" "693d59d7ff713c7206c3a11a4032f39c8da0306a833d9b631f81eda4266454a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "693d59d7ff713c7206c3a11a4032f39c8da0306a833d9b631f81eda4266454a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "693d59d7ff713c7206c3a11a4032f39c8da0306a833d9b631f81eda4266454a6", kill_on_drop: false }`
[INFO] [stdout] 693d59d7ff713c7206c3a11a4032f39c8da0306a833d9b631f81eda4266454a6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8fb4c59497d877068b986838fc1a275aee59b03d28461329b2501fc6ea38e326
[INFO] running `Command { std: "docker" "start" "-a" "8fb4c59497d877068b986838fc1a275aee59b03d28461329b2501fc6ea38e326", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking rust_ds v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `HEADER_L`, `HEADER_R`, `SUB_HEAD`, `TOPIC`
[INFO] [stdout]  --> src/ds/bst.rs:1:22
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::markers::{HEADER_L, HEADER_R, SUB_HEAD, TOPIC};
[INFO] [stdout]   |                      ^^^^^^^^  ^^^^^^^^  ^^^^^^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `HEADER_L`, `HEADER_R`, `SUB_HEAD`, `TOPIC`
[INFO] [stdout]  --> src/ds/bst.rs:1:22
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::markers::{HEADER_L, HEADER_R, SUB_HEAD, TOPIC};
[INFO] [stdout]   |                      ^^^^^^^^  ^^^^^^^^  ^^^^^^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arr`
[INFO] [stdout]   --> src/ds/array.rs:19:11
[INFO] [stdout]    |
[INFO] [stdout] 19 |   let mut arr: [u8; 5] = [1, 2, 3, 4, 5];
[INFO] [stdout]    |           ^^^ help: if this is intentional, prefix it with an underscore: `_arr`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vec`
[INFO] [stdout]   --> src/ds/array.rs:22:11
[INFO] [stdout]    |
[INFO] [stdout] 22 |   let mut vec = Vec::<u8>::new();
[INFO] [stdout]    |           ^^^ help: if this is intentional, prefix it with an underscore: `_vec`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/ds/queue.rs:85:7
[INFO] [stdout]    |
[INFO] [stdout] 85 |   for i in 0..10 {
[INFO] [stdout]    |       ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ds/array.rs:19:7
[INFO] [stdout]    |
[INFO] [stdout] 19 |   let mut arr: [u8; 5] = [1, 2, 3, 4, 5];
[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/ds/array.rs:22:7
[INFO] [stdout]    |
[INFO] [stdout] 22 |   let mut vec = Vec::<u8>::new();
[INFO] [stdout]    |       ----^^^
[INFO] [stdout]    |       |
[INFO] [stdout]    |       help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arr`
[INFO] [stdout]   --> src/ds/array.rs:19:11
[INFO] [stdout]    |
[INFO] [stdout] 19 |   let mut arr: [u8; 5] = [1, 2, 3, 4, 5];
[INFO] [stdout]    |           ^^^ help: if this is intentional, prefix it with an underscore: `_arr`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vec`
[INFO] [stdout]   --> src/ds/array.rs:22:11
[INFO] [stdout]    |
[INFO] [stdout] 22 |   let mut vec = Vec::<u8>::new();
[INFO] [stdout]    |           ^^^ help: if this is intentional, prefix it with an underscore: `_vec`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/ds/queue.rs:85:7
[INFO] [stdout]    |
[INFO] [stdout] 85 |   for i in 0..10 {
[INFO] [stdout]    |       ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ds/array.rs:19:7
[INFO] [stdout]    |
[INFO] [stdout] 19 |   let mut arr: [u8; 5] = [1, 2, 3, 4, 5];
[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/ds/array.rs:22:7
[INFO] [stdout]    |
[INFO] [stdout] 22 |   let mut vec = Vec::<u8>::new();
[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/ds/bst.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |     let mut current = &self.root;
[INFO] [stdout]    |         ----^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0507]: cannot move out of `self.root` which is behind a mutable reference
[INFO] [stdout]   --> src/ds/bst.rs:37:46
[INFO] [stdout]    |
[INFO] [stdout] 37 |     let mut parent: *mut Box<Node<T>> = &mut self.root.unwrap();
[INFO] [stdout]    |                                              ^^^^^^^^^ move occurs because `self.root` has type `Option<Box<Node<T>>>`, which does not implement the `Copy` trait
[INFO] [stdout]    |
[INFO] [stdout] help: consider borrowing the `Option`'s content
[INFO] [stdout]    |
[INFO] [stdout] 37 |     let mut parent: *mut Box<Node<T>> = &mut self.root.as_ref().unwrap();
[INFO] [stdout]    |                                                       +++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0507]: cannot move out of `*current` which is behind a shared reference
[INFO] [stdout]   --> src/ds/bst.rs:41:21
[INFO] [stdout]    |
[INFO] [stdout] 41 |       parent = &mut current.unwrap();
[INFO] [stdout]    |                     ^^^^^^^ move occurs because `*current` has type `Option<Box<Node<T>>>`, which does not implement the `Copy` trait
[INFO] [stdout]    |
[INFO] [stdout] help: consider borrowing the `Option`'s content
[INFO] [stdout]    |
[INFO] [stdout] 41 |       parent = &mut current.as_ref().unwrap();
[INFO] [stdout]    |                            +++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0506]: cannot assign to `self.root` because it is borrowed
[INFO] [stdout]   --> src/ds/bst.rs:45:11
[INFO] [stdout]    |
[INFO] [stdout] 38 |     let mut current = &self.root;
[INFO] [stdout]    |                       ---------- borrow of `self.root` occurs here
[INFO] [stdout] 39 | 
[INFO] [stdout] 40 |     while current.is_some() {
[INFO] [stdout]    |           ------- borrow later used here
[INFO] [stdout] ...
[INFO] [stdout] 45 |           self.root = Some(self.root.as_ref().unwrap().left.as_ref().unwrap().clone());
[INFO] [stdout]    |           ^^^^^^^^^ assignment to borrowed `self.root` occurs here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0506]: cannot assign to `self.root` because it is borrowed
[INFO] [stdout]   --> src/ds/bst.rs:48:11
[INFO] [stdout]    |
[INFO] [stdout] 38 |     let mut current = &self.root;
[INFO] [stdout]    |                       ---------- borrow of `self.root` occurs here
[INFO] [stdout] 39 | 
[INFO] [stdout] 40 |     while current.is_some() {
[INFO] [stdout]    |           ------- borrow later used here
[INFO] [stdout] ...
[INFO] [stdout] 48 |           self.root = Some(self.root.as_ref().unwrap().right.as_ref().unwrap().clone());
[INFO] [stdout]    |           ^^^^^^^^^ assignment to borrowed `self.root` occurs here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0507]: cannot move out of a shared reference
[INFO] [stdout]   --> src/ds/bst.rs:61:14
[INFO] [stdout]    |
[INFO] [stdout] 61 |             *parent.as_ref().unwrap().left.unwrap() = Node {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ move occurs because value has type `Option<Box<Node<T>>>`, which does not implement the `Copy` trait
[INFO] [stdout]    |
[INFO] [stdout] help: consider borrowing the `Option`'s content
[INFO] [stdout]    |
[INFO] [stdout] 61 |             *parent.as_ref().unwrap().left.as_ref().unwrap() = Node {
[INFO] [stdout]    |                                           +++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ds/bst.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |     let mut current = &self.root;
[INFO] [stdout]    |         ----^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0507]: cannot move out of `self.root` which is behind a mutable reference
[INFO] [stdout]   --> src/ds/bst.rs:37:46
[INFO] [stdout]    |
[INFO] [stdout] 37 |     let mut parent: *mut Box<Node<T>> = &mut self.root.unwrap();
[INFO] [stdout]    |                                              ^^^^^^^^^ move occurs because `self.root` has type `Option<Box<Node<T>>>`, which does not implement the `Copy` trait
[INFO] [stdout]    |
[INFO] [stdout] help: consider borrowing the `Option`'s content
[INFO] [stdout]    |
[INFO] [stdout] 37 |     let mut parent: *mut Box<Node<T>> = &mut self.root.as_ref().unwrap();
[INFO] [stdout]    |                                                       +++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0507]: cannot move out of `*current` which is behind a shared reference
[INFO] [stdout]   --> src/ds/bst.rs:41:21
[INFO] [stdout]    |
[INFO] [stdout] 41 |       parent = &mut current.unwrap();
[INFO] [stdout]    |                     ^^^^^^^ move occurs because `*current` has type `Option<Box<Node<T>>>`, which does not implement the `Copy` trait
[INFO] [stdout]    |
[INFO] [stdout] help: consider borrowing the `Option`'s content
[INFO] [stdout]    |
[INFO] [stdout] 41 |       parent = &mut current.as_ref().unwrap();
[INFO] [stdout]    |                            +++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0506]: cannot assign to `self.root` because it is borrowed
[INFO] [stdout]   --> src/ds/bst.rs:45:11
[INFO] [stdout]    |
[INFO] [stdout] 38 |     let mut current = &self.root;
[INFO] [stdout]    |                       ---------- borrow of `self.root` occurs here
[INFO] [stdout] 39 | 
[INFO] [stdout] 40 |     while current.is_some() {
[INFO] [stdout]    |           ------- borrow later used here
[INFO] [stdout] ...
[INFO] [stdout] 45 |           self.root = Some(self.root.as_ref().unwrap().left.as_ref().unwrap().clone());
[INFO] [stdout]    |           ^^^^^^^^^ assignment to borrowed `self.root` occurs here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0506]: cannot assign to `self.root` because it is borrowed
[INFO] [stdout]   --> src/ds/bst.rs:48:11
[INFO] [stdout]    |
[INFO] [stdout] 38 |     let mut current = &self.root;
[INFO] [stdout]    |                       ---------- borrow of `self.root` occurs here
[INFO] [stdout] 39 | 
[INFO] [stdout] 40 |     while current.is_some() {
[INFO] [stdout]    |           ------- borrow later used here
[INFO] [stdout] ...
[INFO] [stdout] 48 |           self.root = Some(self.root.as_ref().unwrap().right.as_ref().unwrap().clone());
[INFO] [stdout]    |           ^^^^^^^^^ assignment to borrowed `self.root` occurs here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0507]: cannot move out of a shared reference
[INFO] [stdout]   --> src/ds/bst.rs:61:14
[INFO] [stdout]    |
[INFO] [stdout] 61 |             *parent.as_ref().unwrap().left.unwrap() = Node {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ move occurs because value has type `Option<Box<Node<T>>>`, which does not implement the `Copy` trait
[INFO] [stdout]    |
[INFO] [stdout] help: consider borrowing the `Option`'s content
[INFO] [stdout]    |
[INFO] [stdout] 61 |             *parent.as_ref().unwrap().left.as_ref().unwrap() = Node {
[INFO] [stdout]    |                                           +++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0133]: call to unsafe function is unsafe and requires unsafe function or block
[INFO] [stdout]   --> src/ds/bst.rs:55:22
[INFO] [stdout]    |
[INFO] [stdout] 55 |       match data.cmp(parent.as_ref().unwrap().data.as_ref().unwrap()) {
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^ call to unsafe function
[INFO] [stdout]    |
[INFO] [stdout]    = note: consult the function's documentation for information on how to avoid undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors; 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0133, E0506, E0507.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0133`.
[INFO] [stdout] 
[INFO] [stdout] error[E0133]: call to unsafe function is unsafe and requires unsafe function or block
[INFO] [stdout]   --> src/ds/bst.rs:55:22
[INFO] [stdout]    |
[INFO] [stdout] 55 |       match data.cmp(parent.as_ref().unwrap().data.as_ref().unwrap()) {
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^ call to unsafe function
[INFO] [stdout]    |
[INFO] [stdout]    = note: consult the function's documentation for information on how to avoid undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors; 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0133, E0506, E0507.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_ds` due to 7 previous errors; 7 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about an error, try `rustc --explain E0133`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "8fb4c59497d877068b986838fc1a275aee59b03d28461329b2501fc6ea38e326", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fb4c59497d877068b986838fc1a275aee59b03d28461329b2501fc6ea38e326", kill_on_drop: false }`
[INFO] [stdout] 8fb4c59497d877068b986838fc1a275aee59b03d28461329b2501fc6ea38e326
