[INFO] fetching crate perf-event 0.4.4...
[INFO] checking perf-event-0.4.4 against master#5e3f1b148db5bfa27fee52464ae1f5d34c49d77b for pr-75502
[INFO] extracting crate perf-event 0.4.4 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate perf-event 0.4.4 on toolchain 5e3f1b148db5bfa27fee52464ae1f5d34c49d77b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate perf-event 0.4.4
[INFO] finished tweaking crates.io crate perf-event 0.4.4
[INFO] tweaked toml for crates.io crate perf-event 0.4.4 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate perf-event 0.4.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ba564274e183a6749ba08b8e51aa3dd9a0f2787d51fb64b4c43cd47fead7b251
[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" "ba564274e183a6749ba08b8e51aa3dd9a0f2787d51fb64b4c43cd47fead7b251", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ba564274e183a6749ba08b8e51aa3dd9a0f2787d51fb64b4c43cd47fead7b251", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba564274e183a6749ba08b8e51aa3dd9a0f2787d51fb64b4c43cd47fead7b251", kill_on_drop: false }`
[INFO] [stdout] ba564274e183a6749ba08b8e51aa3dd9a0f2787d51fb64b4c43cd47fead7b251
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5fa2fbf78ed3c8ec26e6e9a3b2dfc504bcfeef24c51b92bf9d0a4cbb56559420
[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" "5fa2fbf78ed3c8ec26e6e9a3b2dfc504bcfeef24c51b92bf9d0a4cbb56559420", kill_on_drop: false }`
[INFO] [stderr]     Checking perf-event-open-sys v0.3.0
[INFO] [stderr]     Checking perf-event v0.4.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.96s
[INFO] running `Command { std: "docker" "inspect" "5fa2fbf78ed3c8ec26e6e9a3b2dfc504bcfeef24c51b92bf9d0a4cbb56559420", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5fa2fbf78ed3c8ec26e6e9a3b2dfc504bcfeef24c51b92bf9d0a4cbb56559420", kill_on_drop: false }`
[INFO] [stdout] 5fa2fbf78ed3c8ec26e6e9a3b2dfc504bcfeef24c51b92bf9d0a4cbb56559420