[INFO] cloning repository https://github.com/raakhul/opscan
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/raakhul/opscan" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fraakhul%2Fopscan", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fraakhul%2Fopscan'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 13396e9b159c53073af61f687a225993a6c1fb6f
[INFO] checking raakhul/opscan against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fraakhul%2Fopscan" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/raakhul/opscan
[INFO] finished tweaking git repo https://github.com/raakhul/opscan
[INFO] tweaked toml for git repo https://github.com/raakhul/opscan written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/raakhul/opscan on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/raakhul/opscan 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aeb211388ff4132764f5b1ffe0f61184fd003f2e7d59970b57bc92185dd4a675
[INFO] running `Command { std: "docker" "start" "-a" "aeb211388ff4132764f5b1ffe0f61184fd003f2e7d59970b57bc92185dd4a675", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aeb211388ff4132764f5b1ffe0f61184fd003f2e7d59970b57bc92185dd4a675", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aeb211388ff4132764f5b1ffe0f61184fd003f2e7d59970b57bc92185dd4a675", kill_on_drop: false }`
[INFO] [stdout] aeb211388ff4132764f5b1ffe0f61184fd003f2e7d59970b57bc92185dd4a675
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b5528c4ee38359aecfbc90f1344d2a76c7379ed119c6676d91c46c10edddeb6c
[INFO] running `Command { std: "docker" "start" "-a" "b5528c4ee38359aecfbc90f1344d2a76c7379ed119c6676d91c46c10edddeb6c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.102
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]     Checking pnet_base v0.28.0
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling pnet v0.28.0
[INFO] [stderr]     Checking cidr v0.2.0
[INFO] [stderr]     Checking pnet_macros_support v0.28.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]     Checking pnet_sys v0.28.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]     Checking rayon-core v1.9.1
[INFO] [stderr]     Checking rayon v1.5.1
[INFO] [stderr]     Checking ipnetwork v0.18.0
[INFO] [stderr]     Checking pnet_datalink v0.28.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling pnet_macros v0.28.0
[INFO] [stderr]    Compiling structopt-derive v0.4.16
[INFO] [stderr]     Checking pnet_packet v0.28.0
[INFO] [stderr]     Checking structopt v0.3.23
[INFO] [stderr]     Checking pnet_transport v0.28.0
[INFO] [stderr]     Checking opscan v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `arpdiscovery::ArpDiscovery`
[INFO] [stdout]  --> src/discovery/mod.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub use arpdiscovery::ArpDiscovery;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tcpscanner::TcpScanner`
[INFO] [stdout]  --> src/scanner/mod.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub use tcpscanner::TcpScanner;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `srcselector::SrcSelector`
[INFO] [stdout]  --> src/util/mod.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub use srcselector::SrcSelector;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ports::MOST_COMMON_PORTS`
[INFO] [stdout]  --> src/util/mod.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub use ports::MOST_COMMON_PORTS;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `arpdiscovery::ArpDiscovery`
[INFO] [stdout]  --> src/discovery/mod.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub use arpdiscovery::ArpDiscovery;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tcpscanner::TcpScanner`
[INFO] [stdout]  --> src/scanner/mod.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub use tcpscanner::TcpScanner;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `srcselector::SrcSelector`
[INFO] [stdout]  --> src/util/mod.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub use srcselector::SrcSelector;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ports::MOST_COMMON_PORTS`
[INFO] [stdout]  --> src/util/mod.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub use ports::MOST_COMMON_PORTS;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `interface`, `source_ip`, `source_mac`, `target_ip`, `target_mac`, and `arp_operation` are never read
[INFO] [stdout]   --> src/discovery/arpdiscovery.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct ArpDiscovery {
[INFO] [stdout]    |            ------------ fields in this struct
[INFO] [stdout] 17 |     pub interface: NetworkInterface,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 18 |     pub source_ip: Ipv4Addr,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 19 |     pub source_mac: MacAddr,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 20 |     pub target_ip: Ipv4Addr,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 21 |     pub target_mac: MacAddr,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 22 |     pub arp_operation: ArpOperation
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ArpDiscovery` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `source_ip` is never read
[INFO] [stdout]  --> src/util/srcselector.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct SrcSelector {
[INFO] [stdout]   |            ----------- field in this struct
[INFO] [stdout] 8 |     pub source_ip: Ipv4Addr
[INFO] [stdout]   |         ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `SrcSelector` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | /     #[structopt(short = "H", long = "host", help = "Host Discovery Types", global = true, default_value = "")]
[INFO] [stdout] 26 | |     host_discovery: String,
[INFO] [stdout]    | |__________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | /     #[structopt(short = "S", long = "scan", help = "Port Scanning Types", global = true, default_value = "")]
[INFO] [stdout] 29 | |     scan_type: String,
[INFO] [stdout]    | |_____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 | /     #[structopt(short = "I", long = "interface", help = "Network Interface", global = true, default_value = "")]
[INFO] [stdout] 35 | |     interface: String,
[INFO] [stdout]    | |_____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `interface`, `source_ip`, `source_mac`, `target_ip`, `target_mac`, and `arp_operation` are never read
[INFO] [stdout]   --> src/discovery/arpdiscovery.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct ArpDiscovery {
[INFO] [stdout]    |            ------------ fields in this struct
[INFO] [stdout] 17 |     pub interface: NetworkInterface,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 18 |     pub source_ip: Ipv4Addr,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 19 |     pub source_mac: MacAddr,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 20 |     pub target_ip: Ipv4Addr,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 21 |     pub target_mac: MacAddr,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 22 |     pub arp_operation: ArpOperation
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ArpDiscovery` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `source_ip` is never read
[INFO] [stdout]  --> src/util/srcselector.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct SrcSelector {
[INFO] [stdout]   |            ----------- field in this struct
[INFO] [stdout] 8 |     pub source_ip: Ipv4Addr
[INFO] [stdout]   |         ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `SrcSelector` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | /     #[structopt(short = "H", long = "host", help = "Host Discovery Types", global = true, default_value = "")]
[INFO] [stdout] 26 | |     host_discovery: String,
[INFO] [stdout]    | |__________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | /     #[structopt(short = "S", long = "scan", help = "Port Scanning Types", global = true, default_value = "")]
[INFO] [stdout] 29 | |     scan_type: String,
[INFO] [stdout]    | |_____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `opscan` (bin "opscan" test) due to 3 previous errors; 6 warnings emitted
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 | /     #[structopt(short = "I", long = "interface", help = "Network Interface", global = true, default_value = "")]
[INFO] [stdout] 35 | |     interface: String,
[INFO] [stdout]    | |_____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `opscan` (bin "opscan") due to 3 previous errors; 6 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "b5528c4ee38359aecfbc90f1344d2a76c7379ed119c6676d91c46c10edddeb6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5528c4ee38359aecfbc90f1344d2a76c7379ed119c6676d91c46c10edddeb6c", kill_on_drop: false }`
[INFO] [stdout] b5528c4ee38359aecfbc90f1344d2a76c7379ed119c6676d91c46c10edddeb6c