[INFO] fetching crate systemstat 0.1.6...
[INFO] checking systemstat-0.1.6 against master#4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 for pr-81174
[INFO] extracting crate systemstat 0.1.6 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate systemstat 0.1.6 on toolchain 4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate systemstat 0.1.6
[INFO] finished tweaking crates.io crate systemstat 0.1.6
[INFO] tweaked toml for crates.io crate systemstat 0.1.6 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate systemstat 0.1.6 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "metadata" "--no-deps" "--format-version=1", 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] 64df7cfd7e5474933d27164f90f871de703322528743eed48a505cd7f443e188
[INFO] running `Command { std: "docker" "start" "-a" "64df7cfd7e5474933d27164f90f871de703322528743eed48a505cd7f443e188", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "64df7cfd7e5474933d27164f90f871de703322528743eed48a505cd7f443e188", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64df7cfd7e5474933d27164f90f871de703322528743eed48a505cd7f443e188", kill_on_drop: false }`
[INFO] [stdout] 64df7cfd7e5474933d27164f90f871de703322528743eed48a505cd7f443e188
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b19ffbe7b5b1cad0871a165dd028cfa2e7469777659a23c6cef51e38c82b89f5
[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" "b19ffbe7b5b1cad0871a165dd028cfa2e7469777659a23c6cef51e38c82b89f5", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling radium v0.5.3
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]     Checking funty v1.0.1
[INFO] [stderr]     Checking tap v1.0.0
[INFO] [stderr]     Checking wyz v0.2.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking bytesize v1.0.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling nom v6.0.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking lexical-core v0.7.4
[INFO] [stderr]     Checking bitvec v0.19.4
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking systemstat v0.1.6 (/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: 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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.74s
[INFO] running `Command { std: "docker" "inspect" "b19ffbe7b5b1cad0871a165dd028cfa2e7469777659a23c6cef51e38c82b89f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b19ffbe7b5b1cad0871a165dd028cfa2e7469777659a23c6cef51e38c82b89f5", kill_on_drop: false }`
[INFO] [stdout] b19ffbe7b5b1cad0871a165dd028cfa2e7469777659a23c6cef51e38c82b89f5