[INFO] fetching crate erbium 0.2.0...
[INFO] checking erbium-0.2.0 against beta for pr-78714
[INFO] extracting crate erbium 0.2.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate erbium 0.2.0 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 erbium 0.2.0
[INFO] finished tweaking crates.io crate erbium 0.2.0
[INFO] tweaked toml for crates.io crate erbium 0.2.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate erbium 0.2.0 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-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 534cee5cf3e81a99ca5502dba4f521d7cf7c99066fbe74e04f62d13c18cb7f02
[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" "534cee5cf3e81a99ca5502dba4f521d7cf7c99066fbe74e04f62d13c18cb7f02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "534cee5cf3e81a99ca5502dba4f521d7cf7c99066fbe74e04f62d13c18cb7f02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "534cee5cf3e81a99ca5502dba4f521d7cf7c99066fbe74e04f62d13c18cb7f02", kill_on_drop: false }`
[INFO] [stdout] 534cee5cf3e81a99ca5502dba4f521d7cf7c99066fbe74e04f62d13c18cb7f02
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] ce325b4738d5b23dbaaf835bd1596faab0b505b7037128c56d22283e4e8270f5
[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" "ce325b4738d5b23dbaaf835bd1596faab0b505b7037128c56d22283e4e8270f5", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-io v0.3.7
[INFO] [stderr]    Compiling paste v1.0.2
[INFO] [stderr]     Checking fallible-iterator v0.2.0
[INFO] [stderr]     Checking fallible-streaming-iterator v0.1.9
[INFO] [stderr]     Checking futures-task v0.3.7
[INFO] [stderr]    Compiling libsqlite3-sys v0.18.0
[INFO] [stderr]     Checking async-channel v1.5.1
[INFO] [stderr]     Checking signal-hook-registry v1.2.2
[INFO] [stderr]     Checking nb-connect v1.0.2
[INFO] [stderr]     Checking hostname v0.3.1
[INFO] [stderr]     Checking polling v2.0.2
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling futures-macro v0.3.7
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking netlink-packet-utils v0.2.0
[INFO] [stderr]     Checking futures-lite v1.11.2
[INFO] [stderr]     Checking rusqlite v0.23.1
[INFO] [stderr]     Checking netlink-packet-utils v0.3.0
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking netlink-packet-core v0.2.1
[INFO] [stderr]     Checking netlink-packet-route v0.3.1
[INFO] [stderr]     Checking async-io v1.1.10
[INFO] [stderr]     Checking async-executor v1.3.0
[INFO] [stderr]     Checking blocking v1.0.2
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking futures-util v0.3.7
[INFO] [stderr]     Checking async-global-executor v1.4.3
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking async-std v1.7.0
[INFO] [stderr]     Checking futures-executor v0.3.7
[INFO] [stderr]     Checking futures v0.3.7
[INFO] [stderr]     Checking netlink-sys v0.3.0
[INFO] [stderr]     Checking erbium v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `broadcast_failed_renew`
[INFO] [stdout]    --> src/dhcp/test.rs:246:4
[INFO] [stdout]     |
[INFO] [stdout] 246 | fn broadcast_failed_renew() {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `dhcpinform_dont_check_existing_lease`
[INFO] [stdout]    --> src/dhcp/test.rs:260:4
[INFO] [stdout]     |
[INFO] [stdout] 260 | fn dhcpinform_dont_check_existing_lease() {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 40.74s
[INFO] running `Command { std: "docker" "inspect" "ce325b4738d5b23dbaaf835bd1596faab0b505b7037128c56d22283e4e8270f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce325b4738d5b23dbaaf835bd1596faab0b505b7037128c56d22283e4e8270f5", kill_on_drop: false }`
[INFO] [stdout] ce325b4738d5b23dbaaf835bd1596faab0b505b7037128c56d22283e4e8270f5