[INFO] updating cached repository https://github.com/ibaryshnikov/runtime-tcp-chat [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] f5ee8116139ee489647b4c524201dc49d8309ccd [INFO] testing ibaryshnikov/runtime-tcp-chat against try#41997647ba6a77908f6ef64401414feb00bccf16 for pr-71274 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fibaryshnikov%2Fruntime-tcp-chat" "/workspace/builds/worker-1/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/ibaryshnikov/runtime-tcp-chat on toolchain 41997647ba6a77908f6ef64401414feb00bccf16 [INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/ibaryshnikov/runtime-tcp-chat [INFO] finished tweaking git repo https://github.com/ibaryshnikov/runtime-tcp-chat [INFO] tweaked toml for git repo https://github.com/ibaryshnikov/runtime-tcp-chat written to /workspace/builds/worker-1/source/Cargo.toml [INFO] crate git repo https://github.com/ibaryshnikov/runtime-tcp-chat already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+41997647ba6a77908f6ef64401414feb00bccf16" "build" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 333720d04b464839d613135404d53f080db3371a946c646cc5c13af0e5bb41f6 [INFO] running `"docker" "start" "-a" "333720d04b464839d613135404d53f080db3371a946c646cc5c13af0e5bb41f6"` [INFO] [stderr] Compiling libc v0.2.55 [INFO] [stderr] Compiling syn v0.15.34 [INFO] [stderr] Compiling cfg-if v0.1.9 [INFO] [stderr] Compiling futures-core-preview v0.3.0-alpha.16 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling futures v0.1.27 [INFO] [stderr] Compiling stable_deref_trait v1.1.1 [INFO] [stderr] Compiling arrayvec v0.4.10 [INFO] [stderr] Compiling nodrop v0.1.13 [INFO] [stderr] Compiling async-datagram v2.2.0 [INFO] [stderr] Compiling async-ready v2.1.0 [INFO] [stderr] Compiling rand_core v0.3.1 [INFO] [stderr] Compiling crossbeam-utils v0.6.5 [INFO] [stderr] Compiling log v0.4.6 [INFO] [stderr] Compiling owning_ref v0.4.0 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling futures-channel-preview v0.3.0-alpha.16 [INFO] [stderr] Compiling futures-io-preview v0.3.0-alpha.16 [INFO] [stderr] Compiling rand_hc v0.1.0 [INFO] [stderr] Compiling rand_xorshift v0.1.1 [INFO] [stderr] Compiling rand_isaac v0.1.1 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling lock_api v0.1.5 [INFO] [stderr] Compiling crossbeam-channel v0.3.8 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Compiling futures-sink-preview v0.3.0-alpha.16 [INFO] [stderr] Compiling quote v0.6.12 [INFO] [stderr] Compiling parking_lot_core v0.4.0 [INFO] [stderr] Compiling crossbeam-epoch v0.7.1 [INFO] [stderr] Compiling rand_os v0.1.3 [INFO] [stderr] Compiling num_cpus v1.10.0 [INFO] [stderr] Compiling net2 v0.2.33 [INFO] [stderr] Compiling iovec v0.1.2 [INFO] [stderr] Compiling crossbeam-deque v0.6.3 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling mio v0.6.17 [INFO] [stderr] Compiling mio-uds v0.6.7 [INFO] [stderr] Compiling parking_lot v0.7.1 [INFO] [stderr] Compiling crossbeam v0.6.0 [INFO] [stderr] Compiling proc-macro-hack v0.5.7 [INFO] [stderr] Compiling runtime-attributes v0.3.0-alpha.4 [INFO] [stderr] Compiling futures-select-macro-preview v0.3.0-alpha.16 [INFO] [stderr] Compiling futures-util-preview v0.3.0-alpha.16 [INFO] [stderr] Compiling futures-executor-preview v0.3.0-alpha.16 [INFO] [stderr] Compiling futures-preview v0.3.0-alpha.16 [INFO] [stderr] Compiling romio v0.3.0-alpha.8 [INFO] [stderr] Compiling runtime-raw v0.3.0-alpha.3 [INFO] [stderr] Compiling juliex v0.3.0-alpha.6 [INFO] [stderr] Compiling runtime-native v0.3.0-alpha.3 [INFO] [stderr] Compiling runtime v0.3.0-alpha.4 [INFO] [stderr] Compiling runtime-tcp-chat v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unreachable expression [INFO] [stderr] --> src/main.rs:71:21 [INFO] [stderr] | [INFO] [stderr] 53 | / loop { [INFO] [stderr] 54 | | let mut buf = vec![0u8; 1024]; [INFO] [stderr] 55 | | reader.read(&mut buf).await.unwrap(); [INFO] [stderr] 56 | | println!( [INFO] [stderr] ... | [INFO] [stderr] 69 | | join_all(futures).await; [INFO] [stderr] 70 | | } [INFO] [stderr] | |_____________________- any code following this expression is unreachable [INFO] [stderr] 71 | Ok(()) [INFO] [stderr] | ^^^^^^ unreachable expression [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unreachable_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: the feature `async_await` has been stable since 1.39.0 and no longer requires an attribute to enable [INFO] [stderr] --> src/main.rs:3:12 [INFO] [stderr] | [INFO] [stderr] 3 | #![feature(async_await)] [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(stable_features)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 2 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 59.69s [INFO] running `"docker" "inspect" "333720d04b464839d613135404d53f080db3371a946c646cc5c13af0e5bb41f6"` [INFO] running `"docker" "rm" "-f" "333720d04b464839d613135404d53f080db3371a946c646cc5c13af0e5bb41f6"` [INFO] [stdout] 333720d04b464839d613135404d53f080db3371a946c646cc5c13af0e5bb41f6 [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen" "--no-run"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] f208816911bbcb4dfce3160e27da04f1a5f0a27c7c44d49d70df67e4b385155d [INFO] running `"docker" "start" "-a" "f208816911bbcb4dfce3160e27da04f1a5f0a27c7c44d49d70df67e4b385155d"` [INFO] [stderr] Compiling runtime-tcp-chat v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unreachable expression [INFO] [stderr] --> src/main.rs:71:21 [INFO] [stderr] | [INFO] [stderr] 53 | / loop { [INFO] [stderr] 54 | | let mut buf = vec![0u8; 1024]; [INFO] [stderr] 55 | | reader.read(&mut buf).await.unwrap(); [INFO] [stderr] 56 | | println!( [INFO] [stderr] ... | [INFO] [stderr] 69 | | join_all(futures).await; [INFO] [stderr] 70 | | } [INFO] [stderr] | |_____________________- any code following this expression is unreachable [INFO] [stderr] 71 | Ok(()) [INFO] [stderr] | ^^^^^^ unreachable expression [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unreachable_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: the feature `async_await` has been stable since 1.39.0 and no longer requires an attribute to enable [INFO] [stderr] --> src/main.rs:3:12 [INFO] [stderr] | [INFO] [stderr] 3 | #![feature(async_await)] [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(stable_features)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 2 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.61s [INFO] running `"docker" "inspect" "f208816911bbcb4dfce3160e27da04f1a5f0a27c7c44d49d70df67e4b385155d"` [INFO] running `"docker" "rm" "-f" "f208816911bbcb4dfce3160e27da04f1a5f0a27c7c44d49d70df67e4b385155d"` [INFO] [stdout] f208816911bbcb4dfce3160e27da04f1a5f0a27c7c44d49d70df67e4b385155d [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen"` [INFO] [stdout] 8e545965b253c83c52381e610bd5ce26c4fb4dbdd4f6fb9bc427cf534409bd3d [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `"docker" "start" "-a" "8e545965b253c83c52381e610bd5ce26c4fb4dbdd4f6fb9bc427cf534409bd3d"` [INFO] [stderr] warning: unreachable expression [INFO] [stderr] --> src/main.rs:71:21 [INFO] [stderr] | [INFO] [stderr] 53 | / loop { [INFO] [stderr] 54 | | let mut buf = vec![0u8; 1024]; [INFO] [stderr] 55 | | reader.read(&mut buf).await.unwrap(); [INFO] [stderr] 56 | | println!( [INFO] [stderr] ... | [INFO] [stderr] 69 | | join_all(futures).await; [INFO] [stderr] 70 | | } [INFO] [stderr] | |_____________________- any code following this expression is unreachable [INFO] [stderr] 71 | Ok(()) [INFO] [stderr] | ^^^^^^ unreachable expression [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unreachable_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: the feature `async_await` has been stable since 1.39.0 and no longer requires an attribute to enable [INFO] [stderr] --> src/main.rs:3:12 [INFO] [stderr] | [INFO] [stderr] 3 | #![feature(async_await)] [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(stable_features)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 2 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.15s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/runtime_tcp_chat-9272e19d22109511 [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `"docker" "inspect" "8e545965b253c83c52381e610bd5ce26c4fb4dbdd4f6fb9bc427cf534409bd3d"` [INFO] running `"docker" "rm" "-f" "8e545965b253c83c52381e610bd5ce26c4fb4dbdd4f6fb9bc427cf534409bd3d"` [INFO] [stdout] 8e545965b253c83c52381e610bd5ce26c4fb4dbdd4f6fb9bc427cf534409bd3d