[INFO] cloning repository https://github.com/greghaynes/rusty-dhcpd
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/greghaynes/rusty-dhcpd" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgreghaynes%2Frusty-dhcpd", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgreghaynes%2Frusty-dhcpd'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 96bb14b4c0be1fb14170ae050a85876201f87295
[INFO] testing greghaynes/rusty-dhcpd against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgreghaynes%2Frusty-dhcpd" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/greghaynes/rusty-dhcpd on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/greghaynes/rusty-dhcpd
[INFO] finished tweaking git repo https://github.com/greghaynes/rusty-dhcpd
[INFO] tweaked toml for git repo https://github.com/greghaynes/rusty-dhcpd written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/greghaynes/rusty-dhcpd already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", 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]  Downloading crates ...
[INFO] [stderr]   Downloaded enum-primitive-derive v0.1.2
[INFO] [stderr]   Downloaded dhcp4r v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 201ee60ba8f63c7821a32690aa3da84e51be9ec7a59206b1326a216112f9212a
[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" "201ee60ba8f63c7821a32690aa3da84e51be9ec7a59206b1326a216112f9212a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "201ee60ba8f63c7821a32690aa3da84e51be9ec7a59206b1326a216112f9212a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "201ee60ba8f63c7821a32690aa3da84e51be9ec7a59206b1326a216112f9212a", kill_on_drop: false }`
[INFO] [stdout] 201ee60ba8f63c7821a32690aa3da84e51be9ec7a59206b1326a216112f9212a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4970c6ddba012fa20c15d6393bcdad5a0a25c7c5f23b32c57e12e46b73f73d99
[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" "4970c6ddba012fa20c15d6393bcdad5a0a25c7c5f23b32c57e12e46b73f73d99", 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 memchr v2.3.3
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling lexical-core v0.7.4
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling enum-primitive-derive v0.1.2
[INFO] [stderr]    Compiling dhcp4r v0.2.0
[INFO] [stderr]    Compiling rusty-dhcpd v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `server`
[INFO] [stdout]  --> src/server.rs:6:34
[INFO] [stdout]   |
[INFO] [stdout] 6 |     fn handle_request(&mut self, server: &server::Server, in_packet: packet::Packet) {
[INFO] [stdout]   |                                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_server`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.25s
[INFO] running `Command { std: "docker" "inspect" "4970c6ddba012fa20c15d6393bcdad5a0a25c7c5f23b32c57e12e46b73f73d99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4970c6ddba012fa20c15d6393bcdad5a0a25c7c5f23b32c57e12e46b73f73d99", kill_on_drop: false }`
[INFO] [stdout] 4970c6ddba012fa20c15d6393bcdad5a0a25c7c5f23b32c57e12e46b73f73d99
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 78a8b92476c7c95eb1047a49eb3de1c50aaa6efb66b93c5529c57298e8b09cd0
[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" "78a8b92476c7c95eb1047a49eb3de1c50aaa6efb66b93c5529c57298e8b09cd0", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rusty-dhcpd v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `server`
[INFO] [stdout]  --> src/server.rs:6:34
[INFO] [stdout]   |
[INFO] [stdout] 6 |     fn handle_request(&mut self, server: &server::Server, in_packet: packet::Packet) {
[INFO] [stdout]   |                                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_server`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.48s
[INFO] running `Command { std: "docker" "inspect" "78a8b92476c7c95eb1047a49eb3de1c50aaa6efb66b93c5529c57298e8b09cd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78a8b92476c7c95eb1047a49eb3de1c50aaa6efb66b93c5529c57298e8b09cd0", kill_on_drop: false }`
[INFO] [stdout] 78a8b92476c7c95eb1047a49eb3de1c50aaa6efb66b93c5529c57298e8b09cd0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e5b415dc75ea1932c6f37a9e2f42cae7495c144e9af549e58a04aa1a4e9f6359
[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" "e5b415dc75ea1932c6f37a9e2f42cae7495c144e9af549e58a04aa1a4e9f6359", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused variable: `server`
[INFO] [stdout] running 0 tests
[INFO] [stderr]  --> src/server.rs:6:34
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 6 |     fn handle_request(&mut self, server: &server::Server, in_packet: packet::Packet) {
[INFO] [stdout] 
[INFO] [stderr]   |                                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_server`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rusty_dhcpd-65d32aaf8da94475
[INFO] running `Command { std: "docker" "inspect" "e5b415dc75ea1932c6f37a9e2f42cae7495c144e9af549e58a04aa1a4e9f6359", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5b415dc75ea1932c6f37a9e2f42cae7495c144e9af549e58a04aa1a4e9f6359", kill_on_drop: false }`
[INFO] [stdout] e5b415dc75ea1932c6f37a9e2f42cae7495c144e9af549e58a04aa1a4e9f6359