[INFO] updating cached repository https://github.com/sabahtalateh/hello_async
[INFO] running `"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"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] cedd7306a8da53fcd0028f9ab8c98329d5003219
[INFO] checking sabahtalateh/hello_async against try#e6563ac70cbfd3196492061900e9e9793e065e4d for pr-69410
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsabahtalateh%2Fhello_async" "/workspace/builds/worker-3/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sabahtalateh/hello_async on toolchain e6563ac70cbfd3196492061900e9e9793e065e4d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e6563ac70cbfd3196492061900e9e9793e065e4d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/sabahtalateh/hello_async
[INFO] finished tweaking git repo https://github.com/sabahtalateh/hello_async
[INFO] tweaked toml for git repo https://github.com/sabahtalateh/hello_async written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/sabahtalateh/hello_async already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e6563ac70cbfd3196492061900e9e9793e065e4d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e6563ac70cbfd3196492061900e9e9793e065e4d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] eedb54da1a086c044b1215b2d8100b6d581a181abc66a32bd79c20f9df7e85a0
[INFO] running `"docker" "start" "-a" "eedb54da1a086c044b1215b2d8100b6d581a181abc66a32bd79c20f9df7e85a0"`
[INFO] [stderr]     Checking getrandom v0.1.8
[INFO] [stderr]     Checking tokio-core v0.1.17
[INFO] [stderr]     Checking rand_core v0.5.0
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.0
[INFO] [stderr]     Checking hello_async v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `future`
[INFO] [stderr]   --> src/bin/tokio_ping_pong_2.rs:46:15
[INFO] [stderr]    |
[INFO] [stderr] 46 | use futures::{future, Future, Sink, Stream};
[INFO] [stderr]    |               ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0023]: this pattern has 3 fields, but the corresponding tuple variant has 1 field
[INFO] [stderr]    --> src/bin/tokio_echo.rs:33:21
[INFO] [stderr]     |
[INFO] [stderr] 33  |                     Ok(amount, _, _) => println!("wrote {} bytes", amount),
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^ expected 1 field, found 3
[INFO] [stderr]     |
[INFO] [stderr] help: missing parenthesis
[INFO] [stderr]     |
[INFO] [stderr] 33  |                     Ok((amount, _, _)) => println!("wrote {} bytes", amount),
[INFO] [stderr]     |                        ^            ^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0023`.
[INFO] [stderr] error: could not compile `hello_async`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: unused variable: `yielded`
[INFO] [stderr]   --> src/bin/tokio_stream_fib.rs:87:13
[INFO] [stderr]    |
[INFO] [stderr] 87 |         let yielded = curr;
[INFO] [stderr]    |             ^^^^^^^ help: consider prefixing with an underscore: `_yielded`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "eedb54da1a086c044b1215b2d8100b6d581a181abc66a32bd79c20f9df7e85a0"`
[INFO] running `"docker" "rm" "-f" "eedb54da1a086c044b1215b2d8100b6d581a181abc66a32bd79c20f9df7e85a0"`
[INFO] [stdout] eedb54da1a086c044b1215b2d8100b6d581a181abc66a32bd79c20f9df7e85a0