[INFO] fetching crate crucio 0.1.0...
[INFO] checking crucio-0.1.0 against master#4d1bd0db7f489b22c6d8aa2385937a95412c015b for pr-114682
[INFO] extracting crate crucio 0.1.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate crucio 0.1.0 on toolchain 4d1bd0db7f489b22c6d8aa2385937a95412c015b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate crucio 0.1.0
[INFO] finished tweaking crates.io crate crucio 0.1.0
[INFO] tweaked toml for crates.io crate crucio 0.1.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] [stdout] error[E0425]: cannot find function `empty` in module `future`
[INFO] [stdout]   --> src/modes/never.rs:25:22
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let () = future::empty().await;
[INFO] [stdout]    |                      ^^^^^ not found in `future`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 1  + use core::iter::empty;
[INFO] [stdout]    |
[INFO] [stdout] 1  + use futures::core_reexport::iter::empty;
[INFO] [stdout]    |
[INFO] [stdout] 1  + use futures::stream::empty;
[INFO] [stdout]    |
[INFO] [stdout] 1  + use std::io::empty;
[INFO] [stdout]    |
[INFO] [stdout]      and 3 other candidates
[INFO] [stdout] help: if you import `empty`, refer to it directly
[INFO] [stdout]    |
[INFO] [stdout] 25 -     let () = future::empty().await;
[INFO] [stdout] 25 +     let () = empty().await;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `empty` in module `future`
[INFO] [stdout]   --> src/modes/never_body.rs:28:30
[INFO] [stdout]    |
[INFO] [stdout] 28 |             let () = future::empty().await;
[INFO] [stdout]    |                              ^^^^^ not found in `future`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 1  + use core::iter::empty;
[INFO] [stdout]    |
[INFO] [stdout] 1  + use crate::modes::never_body::stream::empty;
[INFO] [stdout]    |
[INFO] [stdout] 1  + use futures::core_reexport::iter::empty;
[INFO] [stdout]    |
[INFO] [stdout] 1  + use futures::stream::empty;
[INFO] [stdout]    |
[INFO] [stdout]      and 4 other candidates
[INFO] [stdout] help: if you import `empty`, refer to it directly
[INFO] [stdout]    |
[INFO] [stdout] 28 -             let () = future::empty().await;
[INFO] [stdout] 28 +             let () = empty().await;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `empty` in module `future`
[INFO] [stdout]   --> src/modes/never.rs:25:22
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let () = future::empty().await;
[INFO] [stdout]    |                      ^^^^^ not found in `future`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 1  + use core::iter::empty;
[INFO] [stdout]    |
[INFO] [stdout] 1  + use futures::core_reexport::iter::empty;
[INFO] [stdout]    |
[INFO] [stdout] 1  + use futures::stream::empty;
[INFO] [stdout]    |
[INFO] [stdout] 1  + use std::io::empty;
[INFO] [stdout]    |
[INFO] [stdout]      and 3 other candidates
[INFO] [stdout] help: if you import `empty`, refer to it directly
[INFO] [stdout]    |
[INFO] [stdout] 25 -     let () = future::empty().await;
[INFO] [stdout] 25 +     let () = empty().await;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `empty` in module `future`
[INFO] [stdout]   --> src/modes/never_body.rs:28:30
[INFO] [stdout]    |
[INFO] [stdout] 28 |             let () = future::empty().await;
[INFO] [stdout]    |                              ^^^^^ not found in `future`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 1  + use core::iter::empty;
[INFO] [stdout]    |
[INFO] [stdout] 1  + use crate::modes::never_body::stream::empty;
[INFO] [stdout]    |
[INFO] [stdout] 1  + use futures::core_reexport::iter::empty;
[INFO] [stdout]    |
[INFO] [stdout] 1  + use futures::stream::empty;
[INFO] [stdout]    |
[INFO] [stdout]      and 4 other candidates
[INFO] [stdout] help: if you import `empty`, refer to it directly
[INFO] [stdout]    |
[INFO] [stdout] 28 -             let () = future::empty().await;
[INFO] [stdout] 28 +             let () = empty().await;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: async closures are unstable
[INFO] [stdout]   --> src/modes/never_body.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |         async move |()| -> Option<(Result<Vec<u8>, Error>, ())> {
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #62290 <https://github.com/rust-lang/rust/issues/62290> for more information
[INFO] [stdout]    = help: add `#![feature(async_closure)]` to the crate attributes to enable
[INFO] [stdout]    = help: to use an async block, remove the `||`: `async {`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: async closures are unstable
[INFO] [stdout]   --> src/modes/random.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |         async move |mut rng| -> Option<(Result<Vec<u8>, Error>, StdRng)> {
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #62290 <https://github.com/rust-lang/rust/issues/62290> for more information
[INFO] [stdout]    = help: add `#![feature(async_closure)]` to the crate attributes to enable
[INFO] [stdout]    = help: to use an async block, remove the `||`: `async {`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: async closures are unstable
[INFO] [stdout]   --> src/modes/random_text.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |         async move |mut rng| -> Option<(Result<String, Error>, StdRng)> {
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #62290 <https://github.com/rust-lang/rust/issues/62290> for more information
[INFO] [stdout]    = help: add `#![feature(async_closure)]` to the crate attributes to enable
[INFO] [stdout]    = help: to use an async block, remove the `||`: `async {`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: async closures are unstable
[INFO] [stdout]   --> src/modes/slow_body.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |         async move |mut data| -> Option<(Result<Vec<u8>, Error>, VecDeque<u8>)> {
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #62290 <https://github.com/rust-lang/rust/issues/62290> for more information
[INFO] [stdout]    = help: add `#![feature(async_closure)]` to the crate attributes to enable
[INFO] [stdout]    = help: to use an async block, remove the `||`: `async {`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `async_await` has been stable since 1.39.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(async_await)]
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: async closures are unstable
[INFO] [stdout]   --> src/modes/never_body.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |         async move |()| -> Option<(Result<Vec<u8>, Error>, ())> {
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #62290 <https://github.com/rust-lang/rust/issues/62290> for more information
[INFO] [stdout]    = help: add `#![feature(async_closure)]` to the crate attributes to enable
[INFO] [stdout]    = help: to use an async block, remove the `||`: `async {`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: async closures are unstable
[INFO] [stdout]   --> src/modes/random.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |         async move |mut rng| -> Option<(Result<Vec<u8>, Error>, StdRng)> {
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #62290 <https://github.com/rust-lang/rust/issues/62290> for more information
[INFO] [stdout]    = help: add `#![feature(async_closure)]` to the crate attributes to enable
[INFO] [stdout]    = help: to use an async block, remove the `||`: `async {`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: async closures are unstable
[INFO] [stdout]   --> src/modes/random_text.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |         async move |mut rng| -> Option<(Result<String, Error>, StdRng)> {
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #62290 <https://github.com/rust-lang/rust/issues/62290> for more information
[INFO] [stdout]    = help: add `#![feature(async_closure)]` to the crate attributes to enable
[INFO] [stdout]    = help: to use an async block, remove the `||`: `async {`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: async closures are unstable
[INFO] [stdout]   --> src/modes/slow_body.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |         async move |mut data| -> Option<(Result<Vec<u8>, Error>, VecDeque<u8>)> {
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #62290 <https://github.com/rust-lang/rust/issues/62290> for more information
[INFO] [stdout]    = help: add `#![feature(async_closure)]` to the crate attributes to enable
[INFO] [stdout]    = help: to use an async block, remove the `||`: `async {`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `async_await` has been stable since 1.39.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(async_await)]
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `crucio` (bin "crucio" test) due to 7 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 6 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `crucio` (bin "crucio") due to 7 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "3e4c0b6798ab8935f68541a2150683e8b565f449f76147bfffee41eb55ea576e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e4c0b6798ab8935f68541a2150683e8b565f449f76147bfffee41eb55ea576e", kill_on_drop: false }`
[INFO] [stdout] 3e4c0b6798ab8935f68541a2150683e8b565f449f76147bfffee41eb55ea576e
