[INFO] fetching crate perf-event 0.4.6...
[INFO] checking perf-event-0.4.6 against try#b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b for pr-82781
[INFO] extracting crate perf-event 0.4.6 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate perf-event 0.4.6 on toolchain b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate perf-event 0.4.6
[INFO] finished tweaking crates.io crate perf-event 0.4.6
[INFO] tweaked toml for crates.io crate perf-event 0.4.6 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate perf-event 0.4.6 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6ce82d52ba5832a545f918559f7434fba6be5f77e194f48fbda5c0af2aa9961e
[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" "6ce82d52ba5832a545f918559f7434fba6be5f77e194f48fbda5c0af2aa9961e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6ce82d52ba5832a545f918559f7434fba6be5f77e194f48fbda5c0af2aa9961e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ce82d52ba5832a545f918559f7434fba6be5f77e194f48fbda5c0af2aa9961e", kill_on_drop: false }`
[INFO] [stdout] 6ce82d52ba5832a545f918559f7434fba6be5f77e194f48fbda5c0af2aa9961e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aed9c1dcda0d8a4d9e51f8c56d53bb2a990b08057d72442c8aa53d1db2eb49bf
[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" "aed9c1dcda0d8a4d9e51f8c56d53bb2a990b08057d72442c8aa53d1db2eb49bf", kill_on_drop: false }`
[INFO] [stderr]     Checking perf-event-open-sys v1.0.0
[INFO] [stderr]     Checking perf-event v0.4.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.41s
[INFO] running `Command { std: "docker" "inspect" "aed9c1dcda0d8a4d9e51f8c56d53bb2a990b08057d72442c8aa53d1db2eb49bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aed9c1dcda0d8a4d9e51f8c56d53bb2a990b08057d72442c8aa53d1db2eb49bf", kill_on_drop: false }`
[INFO] [stdout] aed9c1dcda0d8a4d9e51f8c56d53bb2a990b08057d72442c8aa53d1db2eb49bf