[INFO] cloning repository https://github.com/Fabio-Furtado/data_structures_rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Fabio-Furtado/data_structures_rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFabio-Furtado%2Fdata_structures_rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFabio-Furtado%2Fdata_structures_rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e048428e3bc10ab52f75753382827b4c34905945
[INFO] checking Fabio-Furtado/data_structures_rs against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFabio-Furtado%2Fdata_structures_rs" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Fabio-Furtado/data_structures_rs on toolchain 8de4b308b608cded0ebccf658a0fc719bce87d4e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Fabio-Furtado/data_structures_rs
[INFO] finished tweaking git repo https://github.com/Fabio-Furtado/data_structures_rs
[INFO] tweaked toml for git repo https://github.com/Fabio-Furtado/data_structures_rs written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/Fabio-Furtado/data_structures_rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 38e2ae0f3933b32cb9763581895506efd28364a3bd5c8d44eb52374a98f4462f
[INFO] running `Command { std: "docker" "start" "-a" "38e2ae0f3933b32cb9763581895506efd28364a3bd5c8d44eb52374a98f4462f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "38e2ae0f3933b32cb9763581895506efd28364a3bd5c8d44eb52374a98f4462f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38e2ae0f3933b32cb9763581895506efd28364a3bd5c8d44eb52374a98f4462f", kill_on_drop: false }`
[INFO] [stdout] 38e2ae0f3933b32cb9763581895506efd28364a3bd5c8d44eb52374a98f4462f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "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" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1768b8c6be927d81935f47faa9461d6226d149ab94ab2f0056f1e05276fd38e7
[INFO] running `Command { std: "docker" "start" "-a" "1768b8c6be927d81935f47faa9461d6226d149ab94ab2f0056f1e05276fd38e7", kill_on_drop: false }`
[INFO] [stderr]     Checking rs_data v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `next`
[INFO] [stdout]  --> src/s_linked_list.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     next: Option<Box<Node<T>>>
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/s_linked_list.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 |     fn new(data: T, mut next: Option<Node<T>>) -> Self {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `SLinkedList`
[INFO] [stdout]   --> src/s_linked_list.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub struct SLinkedList<T> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/s_linked_list.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `len`
[INFO] [stdout]   --> src/s_linked_list.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub fn len(&self) -> usize {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_empty`
[INFO] [stdout]   --> src/s_linked_list.rs:41:12
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub fn is_empty(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `peek`
[INFO] [stdout]   --> src/s_linked_list.rs:45:12
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn peek(&self) -> Option<&T> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `push`
[INFO] [stdout]   --> src/s_linked_list.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub fn push(&mut self, data: T) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `pop`
[INFO] [stdout]   --> src/s_linked_list.rs:57:12
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn pop(&mut self) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `insert`
[INFO] [stdout]   --> src/s_linked_list.rs:66:12
[INFO] [stdout]    |
[INFO] [stdout] 66 |     pub fn insert(&mut self, index: usize, data: T) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `replace`
[INFO] [stdout]   --> src/s_linked_list.rs:79:12
[INFO] [stdout]    |
[INFO] [stdout] 79 |     pub fn replace(&mut self, index: usize, data: T) {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get`
[INFO] [stdout]   --> src/s_linked_list.rs:85:12
[INFO] [stdout]    |
[INFO] [stdout] 85 |     pub fn get(&self, index: usize) -> Option<&T> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `nth_node_mut`
[INFO] [stdout]   --> src/s_linked_list.rs:89:8
[INFO] [stdout]    |
[INFO] [stdout] 89 |     fn nth_node_mut(&mut self, index: usize) -> Option<&mut Node<T>> {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `nth_node`
[INFO] [stdout]    --> src/s_linked_list.rs:107:8
[INFO] [stdout]     |
[INFO] [stdout] 107 |     fn nth_node(&self, index: usize) -> Option<&Node<T>> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.02s
[INFO] running `Command { std: "docker" "inspect" "1768b8c6be927d81935f47faa9461d6226d149ab94ab2f0056f1e05276fd38e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1768b8c6be927d81935f47faa9461d6226d149ab94ab2f0056f1e05276fd38e7", kill_on_drop: false }`
[INFO] [stdout] 1768b8c6be927d81935f47faa9461d6226d149ab94ab2f0056f1e05276fd38e7