[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] testing Fabio-Furtado/data_structures_rs against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFabio-Furtado%2Fdata_structures_rs" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Fabio-Furtado/data_structures_rs on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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-13/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" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0612fe0cf3436fe5c4db6380fe64bb5eddfb6b162b678f7e3455ac0d428c608d
[INFO] running `Command { std: "docker" "start" "-a" "0612fe0cf3436fe5c4db6380fe64bb5eddfb6b162b678f7e3455ac0d428c608d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0612fe0cf3436fe5c4db6380fe64bb5eddfb6b162b678f7e3455ac0d428c608d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0612fe0cf3436fe5c4db6380fe64bb5eddfb6b162b678f7e3455ac0d428c608d", kill_on_drop: false }`
[INFO] [stdout] 0612fe0cf3436fe5c4db6380fe64bb5eddfb6b162b678f7e3455ac0d428c608d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c8a557c753dd6ca157c8200c6f636cc56791889043b380f512f4d89ba04fceae
[INFO] running `Command { std: "docker" "start" "-a" "c8a557c753dd6ca157c8200c6f636cc56791889043b380f512f4d89ba04fceae", kill_on_drop: false }`
[INFO] [stderr]    Compiling rs_data v0.1.0 (/opt/rustwide/workdir)
[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]   = note: `#[warn(dead_code)]` on by default
[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: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "c8a557c753dd6ca157c8200c6f636cc56791889043b380f512f4d89ba04fceae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8a557c753dd6ca157c8200c6f636cc56791889043b380f512f4d89ba04fceae", kill_on_drop: false }`
[INFO] [stdout] c8a557c753dd6ca157c8200c6f636cc56791889043b380f512f4d89ba04fceae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b0c3999022b7e5f43dc8bc257f77b66e12e0c144de2979eebfe4e8444b1a89a4
[INFO] running `Command { std: "docker" "start" "-a" "b0c3999022b7e5f43dc8bc257f77b66e12e0c144de2979eebfe4e8444b1a89a4", kill_on_drop: false }`
[INFO] [stderr]    Compiling rs_data v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.11s
[INFO] running `Command { std: "docker" "inspect" "b0c3999022b7e5f43dc8bc257f77b66e12e0c144de2979eebfe4e8444b1a89a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0c3999022b7e5f43dc8bc257f77b66e12e0c144de2979eebfe4e8444b1a89a4", kill_on_drop: false }`
[INFO] [stdout] b0c3999022b7e5f43dc8bc257f77b66e12e0c144de2979eebfe4e8444b1a89a4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a4145ecc46b13bcfc155026d26d891985af7e7b1afc4e9549d6972efbd70d768
[INFO] running `Command { std: "docker" "start" "-a" "a4145ecc46b13bcfc155026d26d891985af7e7b1afc4e9549d6972efbd70d768", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rs_data-b25f08aa085c68df)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test s_linked_list::tests::insert ... ok
[INFO] [stdout] test s_linked_list::tests::nth_node_test ... ok
[INFO] [stdout] test s_linked_list::tests::new ... ok
[INFO] [stdout] test s_linked_list::tests::push_and_pop ... ok
[INFO] [stdout] test s_linked_list::tests::replace ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a4145ecc46b13bcfc155026d26d891985af7e7b1afc4e9549d6972efbd70d768", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4145ecc46b13bcfc155026d26d891985af7e7b1afc4e9549d6972efbd70d768", kill_on_drop: false }`
[INFO] [stdout] a4145ecc46b13bcfc155026d26d891985af7e7b1afc4e9549d6972efbd70d768