[INFO] cloning repository https://github.com/ghost820/icmp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ghost820/icmp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fghost820%2Ficmp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fghost820%2Ficmp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f3871ce4619b9d8bf056c988b53f2bdf43e4a23b
[INFO] checking ghost820/icmp against master#19f42cb9bb65555e7d95dab7d17573ae6c5d634c for pr-139087
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fghost820%2Ficmp" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ghost820/icmp on toolchain 19f42cb9bb65555e7d95dab7d17573ae6c5d634c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+19f42cb9bb65555e7d95dab7d17573ae6c5d634c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ghost820/icmp
[INFO] finished tweaking git repo https://github.com/ghost820/icmp
[INFO] tweaked toml for git repo https://github.com/ghost820/icmp written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ghost820/icmp 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" "+19f42cb9bb65555e7d95dab7d17573ae6c5d634c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+19f42cb9bb65555e7d95dab7d17573ae6c5d634c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4cf95f265bc80eb38b5f24ef1cd1363c284a3dedbe18776bd46f17b12d83d262
[INFO] running `Command { std: "docker" "start" "-a" "4cf95f265bc80eb38b5f24ef1cd1363c284a3dedbe18776bd46f17b12d83d262", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4cf95f265bc80eb38b5f24ef1cd1363c284a3dedbe18776bd46f17b12d83d262", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cf95f265bc80eb38b5f24ef1cd1363c284a3dedbe18776bd46f17b12d83d262", kill_on_drop: false }`
[INFO] [stdout] 4cf95f265bc80eb38b5f24ef1cd1363c284a3dedbe18776bd46f17b12d83d262
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+19f42cb9bb65555e7d95dab7d17573ae6c5d634c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 26e34f0535eb910edc0cd9ab474bf0108e194377b82b2c8e5201fdd20cdfac18
[INFO] running `Command { std: "docker" "start" "-a" "26e34f0535eb910edc0cd9ab474bf0108e194377b82b2c8e5201fdd20cdfac18", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling unicode-ident v1.0.13
[INFO] [stderr]    Compiling libc v0.2.159
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]     Checking no-std-net v0.6.0
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling serde v1.0.210
[INFO] [stderr]    Compiling pnet v0.35.0
[INFO] [stderr]     Checking pnet_base v0.35.0
[INFO] [stderr]     Checking pnet_macros_support v0.35.0
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.79
[INFO] [stderr]     Checking pnet_sys v0.35.0
[INFO] [stderr]     Checking socket2 v0.5.7
[INFO] [stderr]    Compiling regex-automata v0.4.8
[INFO] [stderr]     Checking ipnetwork v0.20.0
[INFO] [stderr]     Checking pnet_datalink v0.35.0
[INFO] [stderr]    Compiling regex v1.11.0
[INFO] [stderr]    Compiling pnet_macros v0.35.0
[INFO] [stderr]     Checking pnet_packet v0.35.0
[INFO] [stderr]     Checking pnet_transport v0.35.0
[INFO] [stderr]     Checking icmp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `src_addr`
[INFO] [stdout]   --> src/main.rs:14:20
[INFO] [stdout]    |
[INFO] [stdout] 14 |             Ok((n, src_addr)) => {
[INFO] [stdout]    |                    ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_src_addr`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `echo_request`
[INFO] [stdout]   --> src/main.rs:24:45
[INFO] [stdout]    |
[INFO] [stdout] 24 | ...                   if let Some(echo_request) =
[INFO] [stdout]    |                                   ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_echo_request`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `echo_reply`
[INFO] [stdout]   --> src/main.rs:31:45
[INFO] [stdout]    |
[INFO] [stdout] 31 | ...                   if let Some(echo_reply) =
[INFO] [stdout]    |                                   ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_echo_reply`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `src_addr`
[INFO] [stdout]   --> src/main.rs:14:20
[INFO] [stdout]    |
[INFO] [stdout] 14 |             Ok((n, src_addr)) => {
[INFO] [stdout]    |                    ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_src_addr`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `echo_request`
[INFO] [stdout]   --> src/main.rs:24:45
[INFO] [stdout]    |
[INFO] [stdout] 24 | ...                   if let Some(echo_request) =
[INFO] [stdout]    |                                   ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_echo_request`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `echo_reply`
[INFO] [stdout]   --> src/main.rs:31:45
[INFO] [stdout]    |
[INFO] [stdout] 31 | ...                   if let Some(echo_reply) =
[INFO] [stdout]    |                                   ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_echo_reply`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.47s
[INFO] running `Command { std: "docker" "inspect" "26e34f0535eb910edc0cd9ab474bf0108e194377b82b2c8e5201fdd20cdfac18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26e34f0535eb910edc0cd9ab474bf0108e194377b82b2c8e5201fdd20cdfac18", kill_on_drop: false }`
[INFO] [stdout] 26e34f0535eb910edc0cd9ab474bf0108e194377b82b2c8e5201fdd20cdfac18