[INFO] cloning repository https://github.com/yasyx/hello-algo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yasyx/hello-algo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyasyx%2Fhello-algo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyasyx%2Fhello-algo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b986f1b178bac731f33201136560c3cc9fb57b79
[INFO] building yasyx/hello-algo against try#334963c956d25708feab489a3816ae63f639355d for pr-135216
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyasyx%2Fhello-algo" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yasyx/hello-algo on toolchain 334963c956d25708feab489a3816ae63f639355d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+334963c956d25708feab489a3816ae63f639355d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/yasyx/hello-algo
[INFO] finished tweaking git repo https://github.com/yasyx/hello-algo
[INFO] tweaked toml for git repo https://github.com/yasyx/hello-algo written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/yasyx/hello-algo 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" "+334963c956d25708feab489a3816ae63f639355d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+334963c956d25708feab489a3816ae63f639355d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] def6374a3c70845c78e10846c8c1150b7b0b0016d382fd504143729f9cd96228
[INFO] running `Command { std: "docker" "start" "-a" "def6374a3c70845c78e10846c8c1150b7b0b0016d382fd504143729f9cd96228", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "def6374a3c70845c78e10846c8c1150b7b0b0016d382fd504143729f9cd96228", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "def6374a3c70845c78e10846c8c1150b7b0b0016d382fd504143729f9cd96228", kill_on_drop: false }`
[INFO] [stdout] def6374a3c70845c78e10846c8c1150b7b0b0016d382fd504143729f9cd96228
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+334963c956d25708feab489a3816ae63f639355d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4091047e81a6eab9e2590c26b740dd8989ff035c73c871ebb515e118865e4bfa
[INFO] running `Command { std: "docker" "start" "-a" "4091047e81a6eab9e2590c26b740dd8989ff035c73c871ebb515e118865e4bfa", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.87
[INFO] [stderr]    Compiling unicode-ident v1.0.13
[INFO] [stderr]    Compiling serde v1.0.210
[INFO] [stderr]    Compiling serde_json v1.0.128
[INFO] [stderr]    Compiling itoa v1.0.11
[INFO] [stderr]    Compiling ryu v1.0.18
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.79
[INFO] [stderr]    Compiling serde_derive v1.0.210
[INFO] [stderr]    Compiling hello-algo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `parent` is never used
[INFO] [stdout]   --> src/binary_tree.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl ArrayBinaryTree {
[INFO] [stdout]    | -------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 39 |     fn parent(&self, i: i32) -> i32 {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AvlTreeNode` is never constructed
[INFO] [stdout]  --> src/avl_tree.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct AvlTreeNode {
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `AvlTreeNode` has a derived impl for the trait `Default`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `OptionTreeNodeRc` is never used
[INFO] [stdout]   --> src/avl_tree.rs:12:6
[INFO] [stdout]    |
[INFO] [stdout] 12 | type OptionTreeNodeRc = Option<Rc<RefCell<AvlTreeNode>>>;
[INFO] [stdout]    |      ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated functions are never used
[INFO] [stdout]   --> src/avl_tree.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl AvlTreeNode {
[INFO] [stdout]    | ---------------- associated functions in this implementation
[INFO] [stdout] 16 |     fn new(val: i32) -> Rc<RefCell<Self>> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     fn height(node: OptionTreeNodeRc) -> i32 {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 34 |     fn update_height(node: OptionTreeNodeRc) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 42 |     fn balance_factor(node: OptionTreeNodeRc) -> i32 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |     fn right_rotate(node: OptionTreeNodeRc) -> OptionTreeNodeRc {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 66 |     fn left_rotate(node: OptionTreeNodeRc) -> OptionTreeNodeRc {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 83 |     fn rotate(node: OptionTreeNodeRc) -> OptionTreeNodeRc {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.71s
[INFO] running `Command { std: "docker" "inspect" "4091047e81a6eab9e2590c26b740dd8989ff035c73c871ebb515e118865e4bfa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4091047e81a6eab9e2590c26b740dd8989ff035c73c871ebb515e118865e4bfa", kill_on_drop: false }`
[INFO] [stdout] 4091047e81a6eab9e2590c26b740dd8989ff035c73c871ebb515e118865e4bfa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+334963c956d25708feab489a3816ae63f639355d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 71fc47adede38b24597940fb507a98f0e1280dc40deac9ace81dfa26a9914ba2
[INFO] running `Command { std: "docker" "start" "-a" "71fc47adede38b24597940fb507a98f0e1280dc40deac9ace81dfa26a9914ba2", kill_on_drop: false }`
[INFO] [stderr]    Compiling hello-algo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `parent` is never used
[INFO] [stdout]   --> src/binary_tree.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl ArrayBinaryTree {
[INFO] [stdout]    | -------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 39 |     fn parent(&self, i: i32) -> i32 {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AvlTreeNode` is never constructed
[INFO] [stdout]  --> src/avl_tree.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct AvlTreeNode {
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `AvlTreeNode` has a derived impl for the trait `Default`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `OptionTreeNodeRc` is never used
[INFO] [stdout]   --> src/avl_tree.rs:12:6
[INFO] [stdout]    |
[INFO] [stdout] 12 | type OptionTreeNodeRc = Option<Rc<RefCell<AvlTreeNode>>>;
[INFO] [stdout]    |      ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated functions are never used
[INFO] [stdout]   --> src/avl_tree.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl AvlTreeNode {
[INFO] [stdout]    | ---------------- associated functions in this implementation
[INFO] [stdout] 16 |     fn new(val: i32) -> Rc<RefCell<Self>> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     fn height(node: OptionTreeNodeRc) -> i32 {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 34 |     fn update_height(node: OptionTreeNodeRc) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 42 |     fn balance_factor(node: OptionTreeNodeRc) -> i32 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |     fn right_rotate(node: OptionTreeNodeRc) -> OptionTreeNodeRc {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 66 |     fn left_rotate(node: OptionTreeNodeRc) -> OptionTreeNodeRc {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 83 |     fn rotate(node: OptionTreeNodeRc) -> OptionTreeNodeRc {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "71fc47adede38b24597940fb507a98f0e1280dc40deac9ace81dfa26a9914ba2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71fc47adede38b24597940fb507a98f0e1280dc40deac9ace81dfa26a9914ba2", kill_on_drop: false }`
[INFO] [stdout] 71fc47adede38b24597940fb507a98f0e1280dc40deac9ace81dfa26a9914ba2
