[INFO] cloning repository https://github.com/DefectingCat/rs-playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DefectingCat/rs-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDefectingCat%2Frs-playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDefectingCat%2Frs-playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f1064a7360526288b73f5af94740c77f72ea82dc
[INFO] checking DefectingCat/rs-playground against master#04ff05c9c0cfbca33115c5f1b8bb20a66a54b799 for pr-147834
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDefectingCat%2Frs-playground" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/DefectingCat/rs-playground
[INFO] removed 0 missing examples
[INFO] finished tweaking git repo https://github.com/DefectingCat/rs-playground
[INFO] tweaked toml for git repo https://github.com/DefectingCat/rs-playground written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/DefectingCat/rs-playground on toolchain 04ff05c9c0cfbca33115c5f1b8bb20a66a54b799
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+04ff05c9c0cfbca33115c5f1b8bb20a66a54b799" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/DefectingCat/rs-playground 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" "+04ff05c9c0cfbca33115c5f1b8bb20a66a54b799" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde v1.0.208
[INFO] [stderr]   Downloaded half v2.4.0
[INFO] [stderr]   Downloaded serde_derive v1.0.208
[INFO] [stderr]   Downloaded serde_json v1.0.125
[INFO] [stderr]   Downloaded tokio-cron-scheduler v0.11.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+04ff05c9c0cfbca33115c5f1b8bb20a66a54b799" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e31fbbe90b053d173c0efb527d9e649116717e36548d15ade5698923ab617af3
[INFO] running `Command { std: "docker" "start" "-a" "e31fbbe90b053d173c0efb527d9e649116717e36548d15ade5698923ab617af3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e31fbbe90b053d173c0efb527d9e649116717e36548d15ade5698923ab617af3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e31fbbe90b053d173c0efb527d9e649116717e36548d15ade5698923ab617af3", kill_on_drop: false }`
[INFO] [stdout] e31fbbe90b053d173c0efb527d9e649116717e36548d15ade5698923ab617af3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+04ff05c9c0cfbca33115c5f1b8bb20a66a54b799" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3d294aba33389daac41b92e67fb527600c772f955245bba700b3caa739df2f62
[INFO] running `Command { std: "docker" "start" "-a" "3d294aba33389daac41b92e67fb527600c772f955245bba700b3caa739df2f62", kill_on_drop: false }`
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[INFO] [stdout] warning: fields `value` and `chilren` are never read
[INFO] [stdout]   --> wake-tree/src/main.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout]  7 | struct Node {
[INFO] [stdout]    |        ---- fields in this struct
[INFO] [stdout]  8 |     value: i32,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]  9 |     parent: RefCell<Weak<Node>>,
[INFO] [stdout] 10 |     chilren: RefCell<Vec<Rc<Node>>>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking unsafe-tree v0.1.0 (/opt/rustwide/workdir/unsafe-tree)
[INFO] [stdout] warning: fields `value` and `chilren` are never read
[INFO] [stdout]   --> wake-tree/src/main.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout]  7 | struct Node {
[INFO] [stdout]    |        ---- fields in this struct
[INFO] [stdout]  8 |     value: i32,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]  9 |     parent: RefCell<Weak<Node>>,
[INFO] [stdout] 10 |     chilren: RefCell<Vec<Rc<Node>>>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
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[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling openssl-macros v0.1.1
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[INFO] [stderr]    Compiling serde_derive v1.0.208
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[INFO] [stderr]     Checking tokio-stream v0.1.15
[INFO] [stderr]     Checking timed-future v0.1.0 (/opt/rustwide/workdir/timed-future)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> timed-future/src/lib.rs:19:13
[INFO] [stdout]    |
[INFO] [stdout] 19 |         let mut inner_poll = std::pin::pin!(self.future).as_mut().poll(cx);
[INFO] [stdout]    |             ----^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0596]: cannot borrow data in dereference of `Pin<&mut TimedFuture<Fut>>` as mutable
[INFO] [stdout]   --> timed-future/src/lib.rs:18:21
[INFO] [stdout]    |
[INFO] [stdout] 18 |         let start = self.start.get_or_insert(Instant::now());
[INFO] [stdout]    |                     ^^^^^^^^^^ cannot borrow as mutable
[INFO] [stdout]    |
[INFO] [stdout]    = help: trait `DerefMut` is required to modify through a dereference, but it is not implemented for `Pin<&mut TimedFuture<Fut>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0507]: cannot move out of dereference of `Pin<&mut TimedFuture<Fut>>`
[INFO] [stdout]   --> timed-future/src/lib.rs:19:45
[INFO] [stdout]    |
[INFO] [stdout] 19 |         let mut inner_poll = std::pin::pin!(self.future).as_mut().poll(cx);
[INFO] [stdout]    |                                             ^^^^^^^^^^^ move occurs because value has type `Fut`, which does not implement the `Copy` trait
[INFO] [stdout]    |
[INFO] [stdout] help: if `Fut` implemented `Clone`, you could clone the value
[INFO] [stdout]   --> timed-future/src/lib.rs:11:6
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl<Fut: Future> Future for TimedFuture<Fut> {
[INFO] [stdout]    |      ^^^ consider constraining this type parameter with `Clone`
[INFO] [stdout] ...
[INFO] [stdout] 19 |         let mut inner_poll = std::pin::pin!(self.future).as_mut().poll(cx);
[INFO] [stdout]    |                                             ----------- you could clone this value
[INFO] [stdout] help: consider borrowing here
[INFO] [stdout]    |
[INFO] [stdout] 19 |         let mut inner_poll = std::pin::pin!(&self.future).as_mut().poll(cx);
[INFO] [stdout]    |                                             +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `start`
[INFO] [stdout]   --> timed-future/src/lib.rs:18:13
[INFO] [stdout]    |
[INFO] [stdout] 18 |         let start = self.start.get_or_insert(Instant::now());
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_start`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `elapsed`
[INFO] [stdout]   --> timed-future/src/lib.rs:20:13
[INFO] [stdout]    |
[INFO] [stdout] 20 |         let elapsed = self.start.unwrap().elapsed();
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_elapsed`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0507, E0596.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0507`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `timed-future` (lib) due to 2 previous errors; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "3d294aba33389daac41b92e67fb527600c772f955245bba700b3caa739df2f62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d294aba33389daac41b92e67fb527600c772f955245bba700b3caa739df2f62", kill_on_drop: false }`
[INFO] [stdout] 3d294aba33389daac41b92e67fb527600c772f955245bba700b3caa739df2f62
