[INFO] cloning repository https://github.com/spectrex02/rusdhcp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/spectrex02/rusdhcp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspectrex02%2Frusdhcp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspectrex02%2Frusdhcp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7b3d74acf445e7f0dbe34d4b9f98053c5194dcf6
[INFO] checking spectrex02/rusdhcp against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspectrex02%2Frusdhcp" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/spectrex02/rusdhcp 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 git repo https://github.com/spectrex02/rusdhcp
[INFO] finished tweaking git repo https://github.com/spectrex02/rusdhcp
[INFO] tweaked toml for git repo https://github.com/spectrex02/rusdhcp written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/spectrex02/rusdhcp 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 6a5fdc0b462181722481efcbe4155fe9e96065014b0c68d27112d893d5caf44e
[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" "6a5fdc0b462181722481efcbe4155fe9e96065014b0c68d27112d893d5caf44e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6a5fdc0b462181722481efcbe4155fe9e96065014b0c68d27112d893d5caf44e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a5fdc0b462181722481efcbe4155fe9e96065014b0c68d27112d893d5caf44e", kill_on_drop: false }`
[INFO] [stdout] 6a5fdc0b462181722481efcbe4155fe9e96065014b0c68d27112d893d5caf44e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] fe955f806d56b7f2e65d5b4cea64ef202087953da6136edcadd1a6dccea35785
[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" "fe955f806d56b7f2e65d5b4cea64ef202087953da6136edcadd1a6dccea35785", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling unicode-xid v0.0.3
[INFO] [stderr]    Compiling regex v1.0.6
[INFO] [stderr]    Compiling regex-syntax v0.6.17
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[INFO] [stderr]     Checking pnet_base v0.22.0
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling failure_derive v0.1.7
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]    Compiling pnet v0.25.0
[INFO] [stderr]     Checking ipnetwork v0.9.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.34
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling syntex_pos v0.42.0
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]     Checking yaml-rust v0.4.3
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking ipnetwork v0.15.1
[INFO] [stderr]     Checking pnet_sys v0.25.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking pnet_macros_support v0.25.0
[INFO] [stderr]     Checking pnet_datalink v0.25.0
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling syntex_errors v0.42.0
[INFO] [stderr]    Compiling syntex_syntax v0.42.0
[INFO] [stderr]     Checking backtrace v0.3.45
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]     Checking failure v0.1.7
[INFO] [stderr]    Compiling syntex v0.42.2
[INFO] [stderr]    Compiling pnet_macros v0.25.0
[INFO] [stderr]    Compiling pnet_packet v0.25.0
[INFO] [stderr]     Checking pnet_transport v0.25.0
[INFO] [stderr]     Checking rusdhcp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Config`, `DHCPServer`
[INFO] [stdout]   --> src/main.rs:14:14
[INFO] [stdout]    |
[INFO] [stdout] 14 | use server::{DHCPServer, Config};
[INFO] [stdout]    |              ^^^^^^^^^^  ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Config`, `DHCPServer`
[INFO] [stdout]   --> src/main.rs:14:14
[INFO] [stdout]    |
[INFO] [stdout] 14 | use server::{DHCPServer, Config};
[INFO] [stdout]    |              ^^^^^^^^^^  ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `socket`
[INFO] [stdout]    --> src/server.rs:219:43
[INFO] [stdout]     |
[INFO] [stdout] 219 |     fn dhcp_request_handle_release(&self, socket: &UdpSocket, packet: &DHCPPacket) -> Result<(), failure::Error> {
[INFO] [stdout]     |                                           ^^^^^^ help: if this is intentional, prefix it with an underscore: `_socket`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `socket`
[INFO] [stdout]    --> src/server.rs:219:43
[INFO] [stdout]     |
[INFO] [stdout] 219 |     fn dhcp_request_handle_release(&self, socket: &UdpSocket, packet: &DHCPPacket) -> Result<(), failure::Error> {
[INFO] [stdout]     |                                           ^^^^^^ help: if this is intentional, prefix it with an underscore: `_socket`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `addr`
[INFO] [stdout]    --> src/server.rs:401:79
[INFO] [stdout]     |
[INFO] [stdout] 401 |         let mut subnet_iterator: Vec<super::Ipv4Addr> = subnet.iter().filter(|addr| true ).collect();
[INFO] [stdout]     |                                                                               ^^^^ help: if this is intentional, prefix it with an underscore: `_addr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `subnet_iterator`
[INFO] [stdout]    --> src/server.rs:401:13
[INFO] [stdout]     |
[INFO] [stdout] 401 |         let mut subnet_iterator: Vec<super::Ipv4Addr> = subnet.iter().filter(|addr| true ).collect();
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_subnet_iterator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `search_from_xid`
[INFO] [stdout]   --> src/storage.rs:70:12
[INFO] [stdout]    |
[INFO] [stdout] 70 |     pub fn search_from_xid(&self, xid: u32) -> Result<Ipv4Addr, failure::Error> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/server.rs:401:13
[INFO] [stdout]     |
[INFO] [stdout] 401 |         let mut subnet_iterator: Vec<super::Ipv4Addr> = subnet.iter().filter(|addr| true ).collect();
[INFO] [stdout]     |             ----^^^^^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 27s
[INFO] running `Command { std: "docker" "inspect" "fe955f806d56b7f2e65d5b4cea64ef202087953da6136edcadd1a6dccea35785", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe955f806d56b7f2e65d5b4cea64ef202087953da6136edcadd1a6dccea35785", kill_on_drop: false }`
[INFO] [stdout] fe955f806d56b7f2e65d5b4cea64ef202087953da6136edcadd1a6dccea35785