[INFO] cloning repository https://github.com/Jeyenore26/PortSniffer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Jeyenore26/PortSniffer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJeyenore26%2FPortSniffer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJeyenore26%2FPortSniffer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d28b6a0393cc2d842d054e2a8d4f7128149b1643
[INFO] checking Jeyenore26/PortSniffer against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJeyenore26%2FPortSniffer" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Jeyenore26/PortSniffer on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Jeyenore26/PortSniffer
[INFO] finished tweaking git repo https://github.com/Jeyenore26/PortSniffer
[INFO] tweaked toml for git repo https://github.com/Jeyenore26/PortSniffer written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Jeyenore26/PortSniffer 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1a0c599ff5125931816a077bfd21c6a8ac5de64ff1263ad749d1a3507f24f99a
[INFO] running `Command { std: "docker" "start" "-a" "1a0c599ff5125931816a077bfd21c6a8ac5de64ff1263ad749d1a3507f24f99a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1a0c599ff5125931816a077bfd21c6a8ac5de64ff1263ad749d1a3507f24f99a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a0c599ff5125931816a077bfd21c6a8ac5de64ff1263ad749d1a3507f24f99a", kill_on_drop: false }`
[INFO] [stdout] 1a0c599ff5125931816a077bfd21c6a8ac5de64ff1263ad749d1a3507f24f99a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1fa8fa03a3341231d5d89e7d1066e93766ec837c0d56ba12e42304e6523c8b12
[INFO] running `Command { std: "docker" "start" "-a" "1fa8fa03a3341231d5d89e7d1066e93766ec837c0d56ba12e42304e6523c8b12", kill_on_drop: false }`
[INFO] [stderr]     Checking port_Sniffer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:60:17
[INFO] [stdout]    |
[INFO] [stdout] 60 |                 tx.send(port);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 60 |                 let _ = tx.send(port);
[INFO] [stdout]    |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:60:17
[INFO] [stdout]    |
[INFO] [stdout] 60 |                 tx.send(port);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 60 |                 let _ = tx.send(port);
[INFO] [stdout]    |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] running `Command { std: "docker" "inspect" "1fa8fa03a3341231d5d89e7d1066e93766ec837c0d56ba12e42304e6523c8b12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fa8fa03a3341231d5d89e7d1066e93766ec837c0d56ba12e42304e6523c8b12", kill_on_drop: false }`
[INFO] [stdout] 1fa8fa03a3341231d5d89e7d1066e93766ec837c0d56ba12e42304e6523c8b12
[INFO] checking Jeyenore26/PortSniffer against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJeyenore26%2FPortSniffer" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Jeyenore26/PortSniffer on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Jeyenore26/PortSniffer
[INFO] finished tweaking git repo https://github.com/Jeyenore26/PortSniffer
[INFO] tweaked toml for git repo https://github.com/Jeyenore26/PortSniffer written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Jeyenore26/PortSniffer 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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8d4781fc6cfe0407349b9112169f8335d7d7ebd21a2e101da5c7119c69c6c527
[INFO] running `Command { std: "docker" "start" "-a" "8d4781fc6cfe0407349b9112169f8335d7d7ebd21a2e101da5c7119c69c6c527", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8d4781fc6cfe0407349b9112169f8335d7d7ebd21a2e101da5c7119c69c6c527", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d4781fc6cfe0407349b9112169f8335d7d7ebd21a2e101da5c7119c69c6c527", kill_on_drop: false }`
[INFO] [stdout] 8d4781fc6cfe0407349b9112169f8335d7d7ebd21a2e101da5c7119c69c6c527
[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" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2bca44f6e75f7f5e18c1651dd3970bf10b83f0806788cbb5f43ff1fa1c4966b8
[INFO] running `Command { std: "docker" "start" "-a" "2bca44f6e75f7f5e18c1651dd3970bf10b83f0806788cbb5f43ff1fa1c4966b8", kill_on_drop: false }`
[INFO] [stderr]     Checking port_Sniffer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `_ -> _`
[INFO] [stdout]   --> src/main.rs:33:20
[INFO] [stdout]    |
[INFO] [stdout] 33 |               } else if _flag.contains("-j") {
[INFO] [stdout]    |  ____________________^
[INFO] [stdout] 34 | |                 let ip_addr = match IpAddr::from_str(&args[3]) {
[INFO] [stdout] 35 | |                     Ok(s) => s,
[INFO] [stdout] 36 | |                     Err(_) => return Err("not a valid IPADDR ; Must be IPV4 or IPV6"),
[INFO] [stdout] ...  |
[INFO] [stdout] 48 | |                 return Err("Invalid syntax");
[INFO] [stdout] 49 | |             }
[INFO] [stdout]    | |_____________^ cannot satisfy `_ -> _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `_ -> _`
[INFO] [stdout]   --> src/main.rs:33:20
[INFO] [stdout]    |
[INFO] [stdout] 33 |               } else if _flag.contains("-j") {
[INFO] [stdout]    |  ____________________^
[INFO] [stdout] 34 | |                 let ip_addr = match IpAddr::from_str(&args[3]) {
[INFO] [stdout] 35 | |                     Ok(s) => s,
[INFO] [stdout] 36 | |                     Err(_) => return Err("not a valid IPADDR ; Must be IPV4 or IPV6"),
[INFO] [stdout] ...  |
[INFO] [stdout] 48 | |                 return Err("Invalid syntax");
[INFO] [stdout] 49 | |             }
[INFO] [stdout]    | |_____________^ cannot satisfy `_ -> _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0284`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0284`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `port_Sniffer` (bin "port_Sniffer") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `port_Sniffer` (bin "port_Sniffer" test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "2bca44f6e75f7f5e18c1651dd3970bf10b83f0806788cbb5f43ff1fa1c4966b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bca44f6e75f7f5e18c1651dd3970bf10b83f0806788cbb5f43ff1fa1c4966b8", kill_on_drop: false }`
[INFO] [stdout] 2bca44f6e75f7f5e18c1651dd3970bf10b83f0806788cbb5f43ff1fa1c4966b8