[INFO] fetching crate port_check 0.1.5...
[INFO] checking port_check-0.1.5 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate port_check 0.1.5 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate port_check 0.1.5 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 crates.io crate port_check 0.1.5
[INFO] finished tweaking crates.io crate port_check 0.1.5
[INFO] tweaked toml for crates.io crate port_check 0.1.5 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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] 4ce4d1831adf2445941ec4faf7acf340a8ee4050b39f7cd3c5b435f50746c875
[INFO] running `Command { std: "docker" "start" "-a" "4ce4d1831adf2445941ec4faf7acf340a8ee4050b39f7cd3c5b435f50746c875", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4ce4d1831adf2445941ec4faf7acf340a8ee4050b39f7cd3c5b435f50746c875", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ce4d1831adf2445941ec4faf7acf340a8ee4050b39f7cd3c5b435f50746c875", kill_on_drop: false }`
[INFO] [stdout] 4ce4d1831adf2445941ec4faf7acf340a8ee4050b39f7cd3c5b435f50746c875
[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] 2ff97df4b956720d4a89b103be02799d90394bf4edfb521c9a6f865303f67877
[INFO] running `Command { std: "docker" "start" "-a" "2ff97df4b956720d4a89b103be02799d90394bf4edfb521c9a6f865303f67877", kill_on_drop: false }`
[INFO] [stderr]     Checking port_check v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Ipv4Addr` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:53:20
[INFO] [stdout]    |
[INFO] [stdout] 52 |     use super::*;
[INFO] [stdout]    |         -------- the item `Ipv4Addr` is already imported here
[INFO] [stdout] 53 |     use std::net::{Ipv4Addr, SocketAddrV4, TcpListener};
[INFO] [stdout]    |                    ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `SocketAddrV4` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:53:30
[INFO] [stdout]    |
[INFO] [stdout] 52 |     use super::*;
[INFO] [stdout]    |         -------- the item `SocketAddrV4` is already imported here
[INFO] [stdout] 53 |     use std::net::{Ipv4Addr, SocketAddrV4, TcpListener};
[INFO] [stdout]    |                              ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TcpListener` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:53:44
[INFO] [stdout]    |
[INFO] [stdout] 52 |     use super::*;
[INFO] [stdout]    |         -------- the item `TcpListener` is already imported here
[INFO] [stdout] 53 |     use std::net::{Ipv4Addr, SocketAddrV4, TcpListener};
[INFO] [stdout]    |                                            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Duration` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:55:23
[INFO] [stdout]    |
[INFO] [stdout] 52 |     use super::*;
[INFO] [stdout]    |         -------- the item `Duration` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 55 |     use std::{thread, time::Duration};
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] running `Command { std: "docker" "inspect" "2ff97df4b956720d4a89b103be02799d90394bf4edfb521c9a6f865303f67877", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ff97df4b956720d4a89b103be02799d90394bf4edfb521c9a6f865303f67877", kill_on_drop: false }`
[INFO] [stdout] 2ff97df4b956720d4a89b103be02799d90394bf4edfb521c9a6f865303f67877
[INFO] checking port_check-0.1.5 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate port_check 0.1.5 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate port_check 0.1.5 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 crates.io crate port_check 0.1.5
[INFO] finished tweaking crates.io crate port_check 0.1.5
[INFO] tweaked toml for crates.io crate port_check 0.1.5 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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] 3a7b70336fb6af9ae2166df0616c35aafb6a45386ca1f359305e8798f63c220b
[INFO] running `Command { std: "docker" "start" "-a" "3a7b70336fb6af9ae2166df0616c35aafb6a45386ca1f359305e8798f63c220b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3a7b70336fb6af9ae2166df0616c35aafb6a45386ca1f359305e8798f63c220b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a7b70336fb6af9ae2166df0616c35aafb6a45386ca1f359305e8798f63c220b", kill_on_drop: false }`
[INFO] [stdout] 3a7b70336fb6af9ae2166df0616c35aafb6a45386ca1f359305e8798f63c220b
[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] d33d13c608aeed9bfec6a3713d4f1c00bae358de8747cff420baa621975d9b7a
[INFO] running `Command { std: "docker" "start" "-a" "d33d13c608aeed9bfec6a3713d4f1c00bae358de8747cff420baa621975d9b7a", kill_on_drop: false }`
[INFO] [stderr]     Checking port_check v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Ipv4Addr` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:53:20
[INFO] [stdout]    |
[INFO] [stdout] 52 |     use super::*;
[INFO] [stdout]    |         -------- the item `Ipv4Addr` is already imported here
[INFO] [stdout] 53 |     use std::net::{Ipv4Addr, SocketAddrV4, TcpListener};
[INFO] [stdout]    |                    ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `SocketAddrV4` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:53:30
[INFO] [stdout]    |
[INFO] [stdout] 52 |     use super::*;
[INFO] [stdout]    |         -------- the item `SocketAddrV4` is already imported here
[INFO] [stdout] 53 |     use std::net::{Ipv4Addr, SocketAddrV4, TcpListener};
[INFO] [stdout]    |                              ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TcpListener` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:53:44
[INFO] [stdout]    |
[INFO] [stdout] 52 |     use super::*;
[INFO] [stdout]    |         -------- the item `TcpListener` is already imported here
[INFO] [stdout] 53 |     use std::net::{Ipv4Addr, SocketAddrV4, TcpListener};
[INFO] [stdout]    |                                            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Duration` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:55:23
[INFO] [stdout]    |
[INFO] [stdout] 52 |     use super::*;
[INFO] [stdout]    |         -------- the item `Duration` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 55 |     use std::{thread, time::Duration};
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]   --> src/lib.rs:92:23
[INFO] [stdout]    |
[INFO] [stdout] 92 |         thread::spawn(move || loop {
[INFO] [stdout]    |                       ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: cannot satisfy `_: Send`
[INFO] [stdout] note: required by a bound in `spawn`
[INFO] [stdout]   --> /rustc/3a4bc97f6385a3aa300a4fd689b44350e54fd676/library/std/src/thread/mod.rs:672:1
[INFO] [stdout] help: try giving this closure an explicit return type
[INFO] [stdout]    |
[INFO] [stdout] 92 ~         thread::spawn(move || -> /* Type */ { loop {
[INFO] [stdout] 93 |             match listener.accept() {
[INFO] [stdout]  ...
[INFO] [stdout] 100|             }
[INFO] [stdout] 101~         } });
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]    --> src/lib.rs:143:23
[INFO] [stdout]     |
[INFO] [stdout] 143 |         thread::spawn(move || loop {
[INFO] [stdout]     |                       ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `_: Send`
[INFO] [stdout] note: required by a bound in `spawn`
[INFO] [stdout]    --> /rustc/3a4bc97f6385a3aa300a4fd689b44350e54fd676/library/std/src/thread/mod.rs:672:1
[INFO] [stdout] help: try giving this closure an explicit return type
[INFO] [stdout]     |
[INFO] [stdout] 143 ~         thread::spawn(move || -> /* Type */ { loop {
[INFO] [stdout] 144 |             match listener.accept() {
[INFO] [stdout]   ...
[INFO] [stdout] 151 |             }
[INFO] [stdout] 152 ~         } });
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0283`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `port_check` (lib test) due to 3 previous errors; 4 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "d33d13c608aeed9bfec6a3713d4f1c00bae358de8747cff420baa621975d9b7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d33d13c608aeed9bfec6a3713d4f1c00bae358de8747cff420baa621975d9b7a", kill_on_drop: false }`
[INFO] [stdout] d33d13c608aeed9bfec6a3713d4f1c00bae358de8747cff420baa621975d9b7a