[INFO] cloning repository https://github.com/L1cHH/Own_Arc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/L1cHH/Own_Arc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FL1cHH%2FOwn_Arc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FL1cHH%2FOwn_Arc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 23013db8ecbdaec36905797aa89d061f4ea0f13c
[INFO] checking L1cHH/Own_Arc against try#0611f7de057c584b8771102fde7aed6c70c71d3b for pr-146440
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FL1cHH%2FOwn_Arc" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/L1cHH/Own_Arc
[INFO] finished tweaking git repo https://github.com/L1cHH/Own_Arc
[INFO] tweaked toml for git repo https://github.com/L1cHH/Own_Arc written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/L1cHH/Own_Arc on toolchain 0611f7de057c584b8771102fde7aed6c70c71d3b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/L1cHH/Own_Arc 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" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fdea97a919c9a6660472df5b489850ab044787c97c3cb1cf4754a60743528d22
[INFO] running `Command { std: "docker" "start" "-a" "fdea97a919c9a6660472df5b489850ab044787c97c3cb1cf4754a60743528d22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fdea97a919c9a6660472df5b489850ab044787c97c3cb1cf4754a60743528d22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fdea97a919c9a6660472df5b489850ab044787c97c3cb1cf4754a60743528d22", kill_on_drop: false }`
[INFO] [stdout] fdea97a919c9a6660472df5b489850ab044787c97c3cb1cf4754a60743528d22
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a2beef50d4a619cca7b16ed593d2d1f67e43ad85b8a9811b35db9725a6ab40c7
[INFO] running `Command { std: "docker" "start" "-a" "a2beef50d4a619cca7b16ed593d2d1f67e43ad85b8a9811b35db9725a6ab40c7", kill_on_drop: false }`
[INFO] [stderr]     Checking Own_arc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: struct `Arc` is never constructed
[INFO] [stdout]   --> src/main.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub struct Arc<T> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]    = note: `#[deny(unused_unconstructable_pub_struct)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `Arc` is never constructed
[INFO] [stdout]   --> src/main.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub struct Arc<T> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]    = note: `#[deny(unused_unconstructable_pub_struct)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `Weak` is never constructed
[INFO] [stdout]    --> src/main.rs:128:12
[INFO] [stdout]     |
[INFO] [stdout] 128 | pub struct Weak<T> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `Weak` is never constructed
[INFO] [stdout]    --> src/main.rs:128:12
[INFO] [stdout]     |
[INFO] [stdout] 128 | pub struct Weak<T> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `new`, `get_mut`, and `downgrade` are never used
[INFO] [stdout]    --> src/main.rs:72:8
[INFO] [stdout]     |
[INFO] [stdout]  71 | impl <T>Arc<T> {
[INFO] [stdout]     | -------------- associated functions in this implementation
[INFO] [stdout]  72 |     fn new(data: T) -> Arc<T> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout]  86 |     fn get_mut(arc: &mut Self) -> Option<&mut T> {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 104 |     fn downgrade(arc: &Self) -> Weak<T> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `new`, `get_mut`, and `downgrade` are never used
[INFO] [stdout]    --> src/main.rs:72:8
[INFO] [stdout]     |
[INFO] [stdout]  71 | impl <T>Arc<T> {
[INFO] [stdout]     | -------------- associated functions in this implementation
[INFO] [stdout]  72 |     fn new(data: T) -> Arc<T> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout]  86 |     fn get_mut(arc: &mut Self) -> Option<&mut T> {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 104 |     fn downgrade(arc: &Self) -> Weak<T> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `Own_arc` (bin "Own_arc" test) due to 2 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `Own_arc` (bin "Own_arc") due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "a2beef50d4a619cca7b16ed593d2d1f67e43ad85b8a9811b35db9725a6ab40c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2beef50d4a619cca7b16ed593d2d1f67e43ad85b8a9811b35db9725a6ab40c7", kill_on_drop: false }`
[INFO] [stdout] a2beef50d4a619cca7b16ed593d2d1f67e43ad85b8a9811b35db9725a6ab40c7
