[INFO] fetching crate sonos_discovery 0.0.2... [INFO] checking sonos_discovery-0.0.2 against master#4fa76a4a7742bb9c1febe33019f5a9e7e4839a65 for pr-83744 [INFO] extracting crate sonos_discovery 0.0.2 into /workspace/builds/worker-14/source [INFO] validating manifest of crates.io crate sonos_discovery 0.0.2 on toolchain 4fa76a4a7742bb9c1febe33019f5a9e7e4839a65 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate sonos_discovery 0.0.2 [INFO] finished tweaking crates.io crate sonos_discovery 0.0.2 [INFO] tweaked toml for crates.io crate sonos_discovery 0.0.2 written to /workspace/builds/worker-14/source/Cargo.toml [INFO] crate crates.io crate sonos_discovery 0.0.2 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 898eba40460ce34e0bcbaba813aa9afd5165cec6528a822ce01317bd074e146d [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "898eba40460ce34e0bcbaba813aa9afd5165cec6528a822ce01317bd074e146d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "898eba40460ce34e0bcbaba813aa9afd5165cec6528a822ce01317bd074e146d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "898eba40460ce34e0bcbaba813aa9afd5165cec6528a822ce01317bd074e146d", kill_on_drop: false }` [INFO] [stdout] 898eba40460ce34e0bcbaba813aa9afd5165cec6528a822ce01317bd074e146d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 6e88ebbf9fe1cbe9bc3e22daae4cdc2e71eaea30b0ed2394dbbdf0a03e90a228 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "6e88ebbf9fe1cbe9bc3e22daae4cdc2e71eaea30b0ed2394dbbdf0a03e90a228", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v0.1.7 [INFO] [stderr] Compiling num-traits v0.2.9 [INFO] [stderr] Compiling num-integer v0.1.41 [INFO] [stderr] Compiling num-bigint v0.2.3 [INFO] [stderr] Compiling num-complex v0.2.3 [INFO] [stderr] Compiling num-rational v0.2.2 [INFO] [stderr] Compiling num-iter v0.1.39 [INFO] [stderr] Checking num v0.2.0 [INFO] [stderr] Checking socket v0.0.7 [INFO] [stderr] Checking sonos_discovery v0.0.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused return value of `Result::::is_ok` that must be used [INFO] [stdout] --> src/lib.rs:122:25 [INFO] [stdout] | [INFO] [stdout] 122 | sender.send((_addr, _data)).is_ok(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: if you intended to assert that this is ok, consider `.unwrap()` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `Result::::is_ok` that must be used [INFO] [stdout] --> src/lib.rs:122:25 [INFO] [stdout] | [INFO] [stdout] 122 | sender.send((_addr, _data)).is_ok(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: if you intended to assert that this is ok, consider `.unwrap()` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 10.16s [INFO] running `Command { std: "docker" "inspect" "6e88ebbf9fe1cbe9bc3e22daae4cdc2e71eaea30b0ed2394dbbdf0a03e90a228", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6e88ebbf9fe1cbe9bc3e22daae4cdc2e71eaea30b0ed2394dbbdf0a03e90a228", kill_on_drop: false }` [INFO] [stdout] 6e88ebbf9fe1cbe9bc3e22daae4cdc2e71eaea30b0ed2394dbbdf0a03e90a228