[INFO] fetching crate systemstat 0.1.7...
[INFO] testing systemstat-0.1.7 against 1.52.1 for beta-1.52-2
[INFO] extracting crate systemstat 0.1.7 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate systemstat 0.1.7 on toolchain 1.52.1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.52.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate systemstat 0.1.7
[INFO] finished tweaking crates.io crate systemstat 0.1.7
[INFO] tweaked toml for crates.io crate systemstat 0.1.7 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate systemstat 0.1.7 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.52.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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" "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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+1.52.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d8d98d46570615f7f1286b3c55bd8ecd2b475862f7d15a8a528ef08a150e6423
[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" "d8d98d46570615f7f1286b3c55bd8ecd2b475862f7d15a8a528ef08a150e6423", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d8d98d46570615f7f1286b3c55bd8ecd2b475862f7d15a8a528ef08a150e6423", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8d98d46570615f7f1286b3c55bd8ecd2b475862f7d15a8a528ef08a150e6423", kill_on_drop: false }`
[INFO] [stdout] d8d98d46570615f7f1286b3c55bd8ecd2b475862f7d15a8a528ef08a150e6423
[INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+1.52.1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b8eff840860ec98a220a9b6a92868123f8f081bc1e80391faf97b961f2c9c610
[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" "b8eff840860ec98a220a9b6a92868123f8f081bc1e80391faf97b961f2c9c610", kill_on_drop: false }`
[INFO] [stderr]    Compiling bytesize v1.0.1
[INFO] [stderr]    Compiling nom v6.0.0
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling systemstat v0.1.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/platform/unix.rs:25:28
[INFO] [stdout]    |
[INFO] [stdout] 25 |         let ifa = unsafe { (*ifap) };
[INFO] [stdout]    |                            ^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.74s
[INFO] running `Command { std: "docker" "inspect" "b8eff840860ec98a220a9b6a92868123f8f081bc1e80391faf97b961f2c9c610", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8eff840860ec98a220a9b6a92868123f8f081bc1e80391faf97b961f2c9c610", kill_on_drop: false }`
[INFO] [stdout] b8eff840860ec98a220a9b6a92868123f8f081bc1e80391faf97b961f2c9c610
[INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+1.52.1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b4bbfc01239280a4e97cb214276759c3b911d54b647a0e0e59b650c2357b36c8
[INFO] running `Command { std: "docker" "start" "-a" "b4bbfc01239280a4e97cb214276759c3b911d54b647a0e0e59b650c2357b36c8", kill_on_drop: false }`
[INFO] [stderr]    Compiling systemstat v0.1.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/platform/unix.rs:25:28
[INFO] [stdout]    |
[INFO] [stdout] 25 |         let ifa = unsafe { (*ifap) };
[INFO] [stdout]    |                            ^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/platform/unix.rs:25:28
[INFO] [stdout]    |
[INFO] [stdout] 25 |         let ifa = unsafe { (*ifap) };
[INFO] [stdout]    |                            ^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.27s
[INFO] running `Command { std: "docker" "inspect" "b4bbfc01239280a4e97cb214276759c3b911d54b647a0e0e59b650c2357b36c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4bbfc01239280a4e97cb214276759c3b911d54b647a0e0e59b650c2357b36c8", kill_on_drop: false }`
[INFO] [stdout] b4bbfc01239280a4e97cb214276759c3b911d54b647a0e0e59b650c2357b36c8
[INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+1.52.1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] eec8f552b58e6ede16fb1043a02ce9b2b6c00a1e27be29d42128905d8cbd36b7
[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" "eec8f552b58e6ede16fb1043a02ce9b2b6c00a1e27be29d42128905d8cbd36b7", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]   --> src/platform/unix.rs:25:28
[INFO] [stderr]    |
[INFO] [stderr] 25 |         let ifa = unsafe { (*ifap) };
[INFO] [stderr]    |                            ^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]   --> src/platform/unix.rs:25:28
[INFO] [stderr]    |
[INFO] [stderr] 25 |         let ifa = unsafe { (*ifap) };
[INFO] [stderr]    |                            ^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/systemstat-026fea2adb39ea3d)
[INFO] [stdout] running 16 tests
[INFO] [stdout] test platform::tests::test_cpu_measurement_is_send ... ok
[INFO] [stdout] test platform::linux::test_proc_diskstats ... ok
[INFO] [stdout] test platform::linux::test_proc_mounts ... ok
[INFO] [stdout] test platform::linux::test_proc_net_sockstat ... ok
[INFO] [stdout] test platform::tests::test_load_average ... ok
[INFO] [stdout] test platform::linux::test_proc_net_sockstat6 ... ok
[INFO] [stdout] test platform::tests::test_battery_life ... ok
[INFO] [stdout] test platform::tests::test_mount_at ... ok
[INFO] [stdout] test platform::tests::test_on_ac_power ... ok
[INFO] [stdout] test platform::tests::test_networks ... ok
[INFO] [stdout] test platform::linux::test_proc_stat_cpu_times ... ok
[INFO] [stdout] test platform::linux::test_proc_meminfo ... ok
[INFO] [stdout] test platform::tests::test_mounts ... ok
[INFO] [stdout] test platform::tests::test_memory ... ok
[INFO] [stdout] test platform::tests::test_cpu_load ... ok
[INFO] [stderr]    Doc-tests systemstat
[INFO] [stdout] test platform::tests::test_cpu_load_aggregate ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.34s
[INFO] [stdout] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]   --> /opt/rustwide/workdir/src/platform/unix.rs:25:28
[INFO] [stderr]    |
[INFO] [stderr] 25 |         let ifa = unsafe { (*ifap) };
[INFO] [stderr]    |                            ^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "eec8f552b58e6ede16fb1043a02ce9b2b6c00a1e27be29d42128905d8cbd36b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eec8f552b58e6ede16fb1043a02ce9b2b6c00a1e27be29d42128905d8cbd36b7", kill_on_drop: false }`
[INFO] [stdout] eec8f552b58e6ede16fb1043a02ce9b2b6c00a1e27be29d42128905d8cbd36b7