[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 master#bd0bacc694d7d8175804bb6f690cb846bfa4a9ee for pr-71665 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsabahtalateh%2Fhello_async" "/workspace/builds/worker-6/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/sabahtalateh/hello_async on toolchain bd0bacc694d7d8175804bb6f690cb846bfa4a9ee [INFO] running `"/workspace/cargo-home/bin/cargo" "+bd0bacc694d7d8175804bb6f690cb846bfa4a9ee" "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-6/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" "+bd0bacc694d7d8175804bb6f690cb846bfa4a9ee" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+bd0bacc694d7d8175804bb6f690cb846bfa4a9ee" "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] a2fc058d764d4bb9e6a10137ebba564e846f3c6a114e2e590afb026f5a5609eb [INFO] running `"docker" "start" "-a" "a2fc058d764d4bb9e6a10137ebba564e846f3c6a114e2e590afb026f5a5609eb"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Checking c2-chacha v0.2.2 [INFO] [stderr] Checking log v0.4.8 [INFO] [stderr] Checking net2 v0.2.33 [INFO] [stderr] Checking getrandom v0.1.8 [INFO] [stderr] Checking bytes v0.4.12 [INFO] [stderr] Checking parking_lot_core v0.4.0 [INFO] [stderr] Checking tokio-threadpool v0.1.15 [INFO] [stderr] Checking rand_core v0.5.0 [INFO] [stderr] Checking mio v0.6.19 [INFO] [stderr] Checking parking_lot v0.7.1 [INFO] [stderr] Checking rand_chacha v0.2.1 [INFO] [stderr] Checking tokio-io v0.1.12 [INFO] [stderr] Checking rand v0.7.0 [INFO] [stderr] Checking mio-uds v0.6.7 [INFO] [stderr] Checking tokio-reactor v0.1.9 [INFO] [stderr] Checking tokio-codec v0.1.1 [INFO] [stderr] Checking tokio-fs v0.1.6 [INFO] [stderr] Checking tokio-uds v0.2.5 [INFO] [stderr] Checking tokio-tcp v0.1.3 [INFO] [stderr] Checking tokio-udp v0.1.3 [INFO] [stderr] Checking tokio v0.1.22 [INFO] [stderr] Checking tokio-core v0.1.17 [INFO] [stderr] Checking hello_async v0.1.0 (/opt/rustwide/workdir) [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: function is never used: `read_exact` [INFO] [stderr] --> src/bin/tokio_async_read.rs:26:4 [INFO] [stderr] | [INFO] [stderr] 26 | fn read_exact(reader: R, buffer: T) -> ReadExact [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] warning: function is never used: `read_exact` [INFO] [stderr] --> src/bin/tokio_async_read.rs:26:4 [INFO] [stderr] | [INFO] [stderr] 26 | fn read_exact(reader: R, buffer: T) -> ReadExact [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] warning: unused variable: `f` [INFO] [stderr] --> src/bin/tokio_functional.rs:72:61 [INFO] [stderr] | [INFO] [stderr] 72 | fn with_future>(f: F) {} [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_f` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/bin/tokio_functional.rs:16:9 [INFO] [stderr] | [INFO] [stderr] 16 | / get_data().and_then(|data| { [INFO] [stderr] 17 | | dst.push(data); [INFO] [stderr] 18 | | Ok(()) [INFO] [stderr] 19 | | }); [INFO] [stderr] | |___________^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: 2 warnings emitted [INFO] [stderr] [INFO] [stderr] error: build failed [INFO] running `"docker" "inspect" "a2fc058d764d4bb9e6a10137ebba564e846f3c6a114e2e590afb026f5a5609eb"` [INFO] running `"docker" "rm" "-f" "a2fc058d764d4bb9e6a10137ebba564e846f3c6a114e2e590afb026f5a5609eb"` [INFO] [stdout] a2fc058d764d4bb9e6a10137ebba564e846f3c6a114e2e590afb026f5a5609eb