[INFO] fetching crate hwaddr 0.1.7...
[INFO] checking hwaddr-0.1.7 against master#4fa76a4a7742bb9c1febe33019f5a9e7e4839a65 for pr-83744
[INFO] extracting crate hwaddr 0.1.7 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate hwaddr 0.1.7 on toolchain 4fa76a4a7742bb9c1febe33019f5a9e7e4839a65
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hwaddr 0.1.7
[INFO] finished tweaking crates.io crate hwaddr 0.1.7
[INFO] tweaked toml for crates.io crate hwaddr 0.1.7 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate hwaddr 0.1.7 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "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] dbc1937647c6c01b98a895500fbcf8367c4ac0490341f547f5b5ca2cbd12ff0b
[INFO] running `Command { std: "docker" "start" "-a" "dbc1937647c6c01b98a895500fbcf8367c4ac0490341f547f5b5ca2cbd12ff0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dbc1937647c6c01b98a895500fbcf8367c4ac0490341f547f5b5ca2cbd12ff0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbc1937647c6c01b98a895500fbcf8367c4ac0490341f547f5b5ca2cbd12ff0b", kill_on_drop: false }`
[INFO] [stdout] dbc1937647c6c01b98a895500fbcf8367c4ac0490341f547f5b5ca2cbd12ff0b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f15426df8d0a143b43505c160a257888c467b7dec82d547b42bbd35d38849bab
[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" "f15426df8d0a143b43505c160a257888c467b7dec82d547b42bbd35d38849bab", kill_on_drop: false }`
[INFO] [stderr]    Compiling hwaddr v0.1.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.27s
[INFO] running `Command { std: "docker" "inspect" "f15426df8d0a143b43505c160a257888c467b7dec82d547b42bbd35d38849bab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f15426df8d0a143b43505c160a257888c467b7dec82d547b42bbd35d38849bab", kill_on_drop: false }`
[INFO] [stdout] f15426df8d0a143b43505c160a257888c467b7dec82d547b42bbd35d38849bab