[INFO] fetching crate libtraceroute 0.1.0...
[INFO] checking libtraceroute-0.1.0 against beta for pr-78714
[INFO] extracting crate libtraceroute 0.1.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate libtraceroute 0.1.0 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libtraceroute 0.1.0
[INFO] finished tweaking crates.io crate libtraceroute 0.1.0
[INFO] tweaked toml for crates.io crate libtraceroute 0.1.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate libtraceroute 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 308c01be83838efc1a536b0bbfd881ca1a5d87d7f5e6ec1b0fd601c0486228a0
[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" "308c01be83838efc1a536b0bbfd881ca1a5d87d7f5e6ec1b0fd601c0486228a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "308c01be83838efc1a536b0bbfd881ca1a5d87d7f5e6ec1b0fd601c0486228a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "308c01be83838efc1a536b0bbfd881ca1a5d87d7f5e6ec1b0fd601c0486228a0", kill_on_drop: false }`
[INFO] [stdout] 308c01be83838efc1a536b0bbfd881ca1a5d87d7f5e6ec1b0fd601c0486228a0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b2b539a3c7fcf5c165726de4258f613f86975ea31a362ffb491b67bd2e85b8af
[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" "b2b539a3c7fcf5c165726de4258f613f86975ea31a362ffb491b67bd2e85b8af", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.0.3
[INFO] [stderr]    Compiling bitflags v0.5.0
[INFO] [stderr]    Compiling regex-syntax v0.6.18
[INFO] [stderr]    Compiling syn v1.0.34
[INFO] [stderr]     Checking pnet_base v0.26.0
[INFO] [stderr]     Checking event-listener v2.2.0
[INFO] [stderr]     Checking fastrand v1.3.3
[INFO] [stderr]     Checking parking v1.0.5
[INFO] [stderr]    Compiling pnet v0.26.0
[INFO] [stderr]    Compiling syntex_pos v0.42.0
[INFO] [stderr]     Checking concurrent-queue v1.1.1
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]    Compiling aho-corasick v0.7.13
[INFO] [stderr]     Checking pnet_sys v0.26.0
[INFO] [stderr]     Checking ipnetwork v0.16.0
[INFO] [stderr]     Checking pnet_macros_support v0.26.0
[INFO] [stderr]     Checking async-channel v1.1.1
[INFO] [stderr]     Checking futures-lite v0.1.5
[INFO] [stderr]     Checking pnet_datalink v0.26.0
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling syntex_errors v0.42.0
[INFO] [stderr]     Checking blocking v0.4.7
[INFO] [stderr]    Compiling syntex_syntax v0.42.0
[INFO] [stderr]    Compiling regex v1.3.9
[INFO] [stderr]    Compiling pin-project-internal v0.4.22
[INFO] [stderr]     Checking pin-project v0.4.22
[INFO] [stderr]    Compiling syntex v0.42.2
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]    Compiling pnet_macros v0.26.0
[INFO] [stderr]     Checking smol v0.1.18
[INFO] [stderr]    Compiling pnet_packet v0.26.0
[INFO] [stderr]     Checking async-std v1.6.2
[INFO] [stderr]     Checking pnet_transport v0.26.0
[INFO] [stderr]     Checking libtraceroute v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 53.52s
[INFO] running `Command { std: "docker" "inspect" "b2b539a3c7fcf5c165726de4258f613f86975ea31a362ffb491b67bd2e85b8af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2b539a3c7fcf5c165726de4258f613f86975ea31a362ffb491b67bd2e85b8af", kill_on_drop: false }`
[INFO] [stdout] b2b539a3c7fcf5c165726de4258f613f86975ea31a362ffb491b67bd2e85b8af