[INFO] cloning repository https://github.com/princewillahumaraeze/udp-ping
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/princewillahumaraeze/udp-ping" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprincewillahumaraeze%2Fudp-ping", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprincewillahumaraeze%2Fudp-ping'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f16e5494181f47a382b5531e46fd5dc6715b6444
[INFO] checking princewillahumaraeze/udp-ping against master#9748d87dc70a9a6725c5dbd76ce29d04752b4f90 for pr-144156
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprincewillahumaraeze%2Fudp-ping" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/princewillahumaraeze/udp-ping
[INFO] finished tweaking git repo https://github.com/princewillahumaraeze/udp-ping
[INFO] tweaked toml for git repo https://github.com/princewillahumaraeze/udp-ping written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/princewillahumaraeze/udp-ping on toolchain 9748d87dc70a9a6725c5dbd76ce29d04752b4f90
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9748d87dc70a9a6725c5dbd76ce29d04752b4f90" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/princewillahumaraeze/udp-ping already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9748d87dc70a9a6725c5dbd76ce29d04752b4f90" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+9748d87dc70a9a6725c5dbd76ce29d04752b4f90" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6ee6540adab4d7939982ce69369432fee83aec2cf440a547614db08f99af9b6c
[INFO] running `Command { std: "docker" "start" "-a" "6ee6540adab4d7939982ce69369432fee83aec2cf440a547614db08f99af9b6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6ee6540adab4d7939982ce69369432fee83aec2cf440a547614db08f99af9b6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ee6540adab4d7939982ce69369432fee83aec2cf440a547614db08f99af9b6c", kill_on_drop: false }`
[INFO] [stdout] 6ee6540adab4d7939982ce69369432fee83aec2cf440a547614db08f99af9b6c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+9748d87dc70a9a6725c5dbd76ce29d04752b4f90" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a300299dc57121cfa1ff30a09063ea7c957e66b23eb710f9b76f592101fc2927
[INFO] running `Command { std: "docker" "start" "-a" "a300299dc57121cfa1ff30a09063ea7c957e66b23eb710f9b76f592101fc2927", kill_on_drop: false }`
[INFO] [stderr]     Checking udp-ping v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `target_addr_str` is never read
[INFO] [stdout]   --> src/main.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let mut target_addr_str: Option<String> = None;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `target_addr_str` is never read
[INFO] [stdout]   --> src/main.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let mut target_addr_str: Option<String> = None;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] running `Command { std: "docker" "inspect" "a300299dc57121cfa1ff30a09063ea7c957e66b23eb710f9b76f592101fc2927", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a300299dc57121cfa1ff30a09063ea7c957e66b23eb710f9b76f592101fc2927", kill_on_drop: false }`
[INFO] [stdout] a300299dc57121cfa1ff30a09063ea7c957e66b23eb710f9b76f592101fc2927