[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 master#507271bc119683008ec719ecee48814e8ac86c65 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-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/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-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/L1cHH/Own_Arc on toolchain 507271bc119683008ec719ecee48814e8ac86c65
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+507271bc119683008ec719ecee48814e8ac86c65" "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" "+507271bc119683008ec719ecee48814e8ac86c65" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "+507271bc119683008ec719ecee48814e8ac86c65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 563dd855e99bd58416ea82690e20aeb96758082437b0baec4395a329b60e3e79
[INFO] running `Command { std: "docker" "start" "-a" "563dd855e99bd58416ea82690e20aeb96758082437b0baec4395a329b60e3e79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "563dd855e99bd58416ea82690e20aeb96758082437b0baec4395a329b60e3e79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "563dd855e99bd58416ea82690e20aeb96758082437b0baec4395a329b60e3e79", kill_on_drop: false }`
[INFO] [stdout] 563dd855e99bd58416ea82690e20aeb96758082437b0baec4395a329b60e3e79
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "+507271bc119683008ec719ecee48814e8ac86c65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 898267037d970dc5266a6000278c00ee1d41706ea0a3775be84872bc2ace0245
[INFO] running `Command { std: "docker" "start" "-a" "898267037d970dc5266a6000278c00ee1d41706ea0a3775be84872bc2ace0245", kill_on_drop: false }`
[INFO] [stderr]     Checking Own_arc v0.1.0 (/opt/rustwide/workdir)
[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]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "898267037d970dc5266a6000278c00ee1d41706ea0a3775be84872bc2ace0245", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "898267037d970dc5266a6000278c00ee1d41706ea0a3775be84872bc2ace0245", kill_on_drop: false }`
[INFO] [stdout] 898267037d970dc5266a6000278c00ee1d41706ea0a3775be84872bc2ace0245
