[INFO] cloning repository https://github.com/Simhyeon/dsa_backup
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Simhyeon/dsa_backup" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSimhyeon%2Fdsa_backup"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSimhyeon%2Fdsa_backup'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0dbf5e9151c71f5e082181de98b31b35786e9fa6
[INFO] testing Simhyeon/dsa_backup against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSimhyeon%2Fdsa_backup" "/workspace/builds/worker-8/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Simhyeon/dsa_backup on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Simhyeon/dsa_backup
[INFO] finished tweaking git repo https://github.com/Simhyeon/dsa_backup
[INFO] tweaked toml for git repo https://github.com/Simhyeon/dsa_backup written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/Simhyeon/dsa_backup already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7c646eac411f191c4a4d2f8bc9f008c6f6fa69de832d8766f5da1f57a93a78d6
[INFO] running `"docker" "start" "-a" "7c646eac411f191c4a4d2f8bc9f008c6f6fa69de832d8766f5da1f57a93a78d6"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `node`
[INFO] [stderr]  --> src/main.rs:8:9
[INFO] [stderr]   |
[INFO] [stderr] 8 |     let node = Node::new(10);
[INFO] [stderr]   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_node`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `target`
[INFO] [stderr]   --> src/linked_list.rs:31:16
[INFO] [stderr]    |
[INFO] [stderr] 31 |     pub fn new(target: T) -> LinkedList<T> {
[INFO] [stderr]    |                ^^^^^^ help: if this is intentional, prefix it with an underscore: `_target`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     lkd_list.get_node(0);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `"docker" "inspect" "7c646eac411f191c4a4d2f8bc9f008c6f6fa69de832d8766f5da1f57a93a78d6"`
[INFO] running `"docker" "rm" "-f" "7c646eac411f191c4a4d2f8bc9f008c6f6fa69de832d8766f5da1f57a93a78d6"`
[INFO] [stdout] 7c646eac411f191c4a4d2f8bc9f008c6f6fa69de832d8766f5da1f57a93a78d6
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 96ce749ec85b597d3270e59c750f2129579684cd5bced339767b65662548f0f3
[INFO] running `"docker" "start" "-a" "96ce749ec85b597d3270e59c750f2129579684cd5bced339767b65662548f0f3"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `node`
[INFO] [stderr]  --> src/main.rs:8:9
[INFO] [stderr]   |
[INFO] [stderr] 8 |     let node = Node::new(10);
[INFO] [stderr]   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_node`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `target`
[INFO] [stderr]   --> src/linked_list.rs:31:16
[INFO] [stderr]    |
[INFO] [stderr] 31 |     pub fn new(target: T) -> LinkedList<T> {
[INFO] [stderr]    |                ^^^^^^ help: if this is intentional, prefix it with an underscore: `_target`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     lkd_list.get_node(0);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `"docker" "inspect" "96ce749ec85b597d3270e59c750f2129579684cd5bced339767b65662548f0f3"`
[INFO] running `"docker" "rm" "-f" "96ce749ec85b597d3270e59c750f2129579684cd5bced339767b65662548f0f3"`
[INFO] [stdout] 96ce749ec85b597d3270e59c750f2129579684cd5bced339767b65662548f0f3
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8f7654aae4aa80d1e8eee2a47cd43fab30cd0d4503592f5480d4b892d1200a94
[INFO] running `"docker" "start" "-a" "8f7654aae4aa80d1e8eee2a47cd43fab30cd0d4503592f5480d4b892d1200a94"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused variable: `node`
[INFO] [stderr]  --> src/main.rs:8:9
[INFO] [stderr]   |
[INFO] [stderr] 8 |     let node = Node::new(10);
[INFO] [stderr]   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_node`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `target`
[INFO] [stderr]   --> src/linked_list.rs:31:16
[INFO] [stderr]    |
[INFO] [stderr] 31 |     pub fn new(target: T) -> LinkedList<T> {
[INFO] [stderr]    |                ^^^^^^ help: if this is intentional, prefix it with an underscore: `_target`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     lkd_list.get_node(0);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rust-d6f8835964023005
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "8f7654aae4aa80d1e8eee2a47cd43fab30cd0d4503592f5480d4b892d1200a94"`
[INFO] running `"docker" "rm" "-f" "8f7654aae4aa80d1e8eee2a47cd43fab30cd0d4503592f5480d4b892d1200a94"`
[INFO] [stdout] 8f7654aae4aa80d1e8eee2a47cd43fab30cd0d4503592f5480d4b892d1200a94