[INFO] updating cached repository https://github.com/sevenshi/async_examples
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 99c0f864073b318d50378b943551d6982d628043
[INFO] testing sevenshi/async_examples/99c0f864073b318d50378b943551d6982d628043 against try#bd7d74411512a3dd3b35d2f699c51dd2557c7e7e+cargoflags=-Zbuild-dir-new-layout for pr-149852-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsevenshi%2Fasync_examples" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/sevenshi/async_examples
[INFO] finished tweaking git repo https://github.com/sevenshi/async_examples
[INFO] tweaked toml for git repo https://github.com/sevenshi/async_examples written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/sevenshi/async_examples on toolchain bd7d74411512a3dd3b35d2f699c51dd2557c7e7e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/sevenshi/async_examples 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" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] testing sevenshi/async_examples/99c0f864073b318d50378b943551d6982d628043 against try#bd7d74411512a3dd3b35d2f699c51dd2557c7e7e+cargoflags=-Zbuild-dir-new-layout for pr-149852-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsevenshi%2Fasync_examples" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/sevenshi/async_examples
[INFO] finished tweaking git repo https://github.com/sevenshi/async_examples
[INFO] tweaked toml for git repo https://github.com/sevenshi/async_examples written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/sevenshi/async_examples on toolchain bd7d74411512a3dd3b35d2f699c51dd2557c7e7e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/sevenshi/async_examples 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" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3fd1be1e577cf446d9732dafd931270e3f1e20f286dcfdf2268254aab6df72ac
[INFO] running `Command { std: "docker" "start" "-a" "3fd1be1e577cf446d9732dafd931270e3f1e20f286dcfdf2268254aab6df72ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3fd1be1e577cf446d9732dafd931270e3f1e20f286dcfdf2268254aab6df72ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3fd1be1e577cf446d9732dafd931270e3f1e20f286dcfdf2268254aab6df72ac", kill_on_drop: false }`
[INFO] [stdout] 3fd1be1e577cf446d9732dafd931270e3f1e20f286dcfdf2268254aab6df72ac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "build" "--frozen" "--message-format=json" "-Zbuild-dir-new-layout", kill_on_drop: false }`
[INFO] [stdout] def8546629852ebb88e3a75d4bb2d3ba52a52749d56577c0842e7c47f23bff3e
[INFO] running `Command { std: "docker" "start" "-a" "def8546629852ebb88e3a75d4bb2d3ba52a52749d56577c0842e7c47f23bff3e", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]    Compiling unicode-ident v1.0.2
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling slab v0.4.7
[INFO] [stderr]    Compiling _02_02_future_trait v0.1.0 (/opt/rustwide/workdir/_02_02_future_trait)
[INFO] [stderr]    Compiling _01_02_why_async v0.1.0 (/opt/rustwide/workdir/_01_02_why_async)
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stdout] error: associated type in `impl` without body
[INFO] [stdout]   --> _02_02_future_trait/src/lib.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     type Vec<u8>;
[INFO] [stdout]    |     ^^^^^^^^^^^^-
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: provide a definition for the type: `= <type>;`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0261]: use of undeclared lifetime name `'a`
[INFO] [stdout]   --> _02_02_future_trait/src/lib.rs:34:34
[INFO] [stdout]    |
[INFO] [stdout] 34 | impl SimpleFuture for SocketRead<'a> {
[INFO] [stdout]    |                                  ^^ undeclared lifetime
[INFO] [stdout]    |
[INFO] [stdout] help: consider introducing lifetime `'a` here
[INFO] [stdout]    |
[INFO] [stdout] 34 | impl<'a> SimpleFuture for SocketRead<'a> {
[INFO] [stdout]    |     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0437]: type `Vec` is not a member of trait `SimpleFuture`
[INFO] [stdout]   --> _02_02_future_trait/src/lib.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     type Vec<u8>;
[INFO] [stdout]    |     ^^^^^^^^^^^^^ not a member of trait `SimpleFuture`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::sync::PoisonError`
[INFO] [stdout]  --> _02_02_future_trait/src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::sync::PoisonError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type parameter `u8` should have an upper camel case name
[INFO] [stdout]   --> _02_02_future_trait/src/lib.rs:35:14
[INFO] [stdout]    |
[INFO] [stdout] 35 |     type Vec<u8>;
[INFO] [stdout]    |              ^^ help: convert the identifier to upper camel case (notice the capitalization): `U8`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0782]: expected a type, found a trait
[INFO] [stdout]    --> _02_02_future_trait/src/lib.rs:128:24
[INFO] [stdout]     |
[INFO] [stdout] 128 |     impl<O> Future for RealFuture<O>  {
[INFO] [stdout]     |                        ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: you can add the `dyn` keyword if you want a trait object
[INFO] [stdout]     |
[INFO] [stdout] 128 |     impl<O> Future for dyn RealFuture<O>  {
[INFO] [stdout]     |                        +++
[INFO] [stdout] help: alternatively use a blanket implementation to implement `Future` for all types that also implement `RealFuture<O>`
[INFO] [stdout]     |
[INFO] [stdout] 128 -     impl<O> Future for RealFuture<O>  {
[INFO] [stdout] 128 +     impl<O, T: RealFuture<O>> Future for T  {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> _02_02_future_trait/src/lib.rs:99:36
[INFO] [stdout]     |
[INFO] [stdout]  95 | /         if let Some(first) = &mut self.first {
[INFO] [stdout]  96 | |             match first.poll(wake){
[INFO] [stdout] ...   |
[INFO] [stdout]  99 | |                 Poll::Ready(()) => self.first.take(),
[INFO] [stdout]     | |                                    ^^^^^^^^^^^^^^^^^ expected `()`, found `Option<FutureA>`
[INFO] [stdout] ...   |
[INFO] [stdout] 103 | |         }
[INFO] [stdout]     | |_________- `if` expressions without `else` arms expect their inner expression to be `()`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected unit type `()`
[INFO] [stdout]                     found enum `Option<FutureA>`
[INFO] [stdout] help: consider using a semicolon here
[INFO] [stdout]     |
[INFO] [stdout] 102 |             };
[INFO] [stdout]     |              +
[INFO] [stdout] help: consider using a semicolon here
[INFO] [stdout]     |
[INFO] [stdout] 103 |         };
[INFO] [stdout]     |          +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0261, E0308, E0437, E0782.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0261`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `_02_02_future_trait` (lib) due to 5 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "def8546629852ebb88e3a75d4bb2d3ba52a52749d56577c0842e7c47f23bff3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "def8546629852ebb88e3a75d4bb2d3ba52a52749d56577c0842e7c47f23bff3e", kill_on_drop: false }`
[INFO] [stdout] def8546629852ebb88e3a75d4bb2d3ba52a52749d56577c0842e7c47f23bff3e
