[INFO] crate sonos_discovery 0.0.2 is already in cache [INFO] checking sonos_discovery-0.0.2 against try#85cc1486e1f000dce4bb8e1b3cfab2b654b102a8 for pr-73323 [INFO] extracting crate sonos_discovery 0.0.2 into /workspace/builds/worker-10/source [INFO] validating manifest of crates.io crate sonos_discovery 0.0.2 on toolchain 85cc1486e1f000dce4bb8e1b3cfab2b654b102a8 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+85cc1486e1f000dce4bb8e1b3cfab2b654b102a8" "read-manifest" "--manifest-path" "Cargo.toml", 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-10/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" "+85cc1486e1f000dce4bb8e1b3cfab2b654b102a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+85cc1486e1f000dce4bb8e1b3cfab2b654b102a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 97848175ac6b4b7123fec9517829361b6ec843e6131022abe1c2e90b87172f44 [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" "97848175ac6b4b7123fec9517829361b6ec843e6131022abe1c2e90b87172f44", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "97848175ac6b4b7123fec9517829361b6ec843e6131022abe1c2e90b87172f44", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "97848175ac6b4b7123fec9517829361b6ec843e6131022abe1c2e90b87172f44", kill_on_drop: false }` [INFO] [stdout] 97848175ac6b4b7123fec9517829361b6ec843e6131022abe1c2e90b87172f44 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+85cc1486e1f000dce4bb8e1b3cfab2b654b102a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a4c4e577999b618e2cf1249a41e10254b8b88d2b2448f3a5bd6bad78d89b5b6b [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" "a4c4e577999b618e2cf1249a41e10254b8b88d2b2448f3a5bd6bad78d89b5b6b", 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-iter v0.1.39 [INFO] [stderr] Compiling num-rational v0.2.2 [INFO] [stderr] Compiling num-complex v0.2.3 [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 `std::result::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 `std::result::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 13.66s [INFO] running `Command { std: "docker" "inspect" "a4c4e577999b618e2cf1249a41e10254b8b88d2b2448f3a5bd6bad78d89b5b6b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a4c4e577999b618e2cf1249a41e10254b8b88d2b2448f3a5bd6bad78d89b5b6b", kill_on_drop: false }` [INFO] [stdout] a4c4e577999b618e2cf1249a41e10254b8b88d2b2448f3a5bd6bad78d89b5b6b