[INFO] fetching crate libbpf-rs 0.7.0...
[INFO] checking libbpf-rs-0.7.0 against try#15a786332e2f0dd343b226ab6bb8ec028a350f73 for pr-81782
[INFO] extracting crate libbpf-rs 0.7.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate libbpf-rs 0.7.0 on toolchain 15a786332e2f0dd343b226ab6bb8ec028a350f73
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-4/source/.cargo/config
[INFO] started tweaking crates.io crate libbpf-rs 0.7.0
[INFO] finished tweaking crates.io crate libbpf-rs 0.7.0
[INFO] tweaked toml for crates.io crate libbpf-rs 0.7.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num_enum_derive v0.5.1
[INFO] [stderr]   Downloaded vsprintf v1.0.3
[INFO] [stderr]   Downloaded plain v0.2.3
[INFO] [stderr]   Downloaded num_enum v0.5.1
[INFO] [stderr]   Downloaded libbpf-sys v0.2.0-3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bccb120a7fc3ac24d1cc951c2c4d54070aecc54ca8cdcae2e1e7438bcfe8bac9
[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" "bccb120a7fc3ac24d1cc951c2c4d54070aecc54ca8cdcae2e1e7438bcfe8bac9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bccb120a7fc3ac24d1cc951c2c4d54070aecc54ca8cdcae2e1e7438bcfe8bac9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bccb120a7fc3ac24d1cc951c2c4d54070aecc54ca8cdcae2e1e7438bcfe8bac9", kill_on_drop: false }`
[INFO] [stdout] bccb120a7fc3ac24d1cc951c2c4d54070aecc54ca8cdcae2e1e7438bcfe8bac9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "check" "--frozen" "--all" "--all-targets" "--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] a404bcf8c03cf7f24cfacc039e10b4b7f016b0bd4d723670a7b125c8d41dca6e
[INFO] running `Command { std: "docker" "start" "-a" "a404bcf8c03cf7f24cfacc039e10b4b7f016b0bd4d723670a7b125c8d41dca6e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking plain v0.2.3
[INFO] [stderr]    Compiling libbpf-sys v0.2.0-3
[INFO] [stderr]    Compiling vsprintf v1.0.3
[INFO] [stderr]    Compiling num_enum_derive v0.5.1
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling strum_macros v0.18.0
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]     Checking num_enum v0.5.1
[INFO] [stderr]     Checking libbpf-rs v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.47s
[INFO] running `Command { std: "docker" "inspect" "a404bcf8c03cf7f24cfacc039e10b4b7f016b0bd4d723670a7b125c8d41dca6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a404bcf8c03cf7f24cfacc039e10b4b7f016b0bd4d723670a7b125c8d41dca6e", kill_on_drop: false }`
[INFO] [stdout] a404bcf8c03cf7f24cfacc039e10b4b7f016b0bd4d723670a7b125c8d41dca6e