[INFO] fetching crate hole-punch-connect 0.1.0...
[INFO] testing hole-punch-connect-0.1.0 against 1.47.0 for beta-1.48-1
[INFO] extracting crate hole-punch-connect 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate hole-punch-connect 0.1.0 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hole-punch-connect 0.1.0
[INFO] finished tweaking crates.io crate hole-punch-connect 0.1.0
[INFO] tweaked toml for crates.io crate hole-punch-connect 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate hole-punch-connect 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c709107ae90536029678315071fc0ac826fa13a470545aaff3bc34a20d6f844d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c709107ae90536029678315071fc0ac826fa13a470545aaff3bc34a20d6f844d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c709107ae90536029678315071fc0ac826fa13a470545aaff3bc34a20d6f844d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c709107ae90536029678315071fc0ac826fa13a470545aaff3bc34a20d6f844d", kill_on_drop: false }`
[INFO] [stdout] c709107ae90536029678315071fc0ac826fa13a470545aaff3bc34a20d6f844d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dde602d19300b17671f83fec50b504ac56d104252a64576bae85b97aaf350dd5
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "dde602d19300b17671f83fec50b504ac56d104252a64576bae85b97aaf350dd5", kill_on_drop: false }`
[INFO] [stderr]    Compiling hole-punch-connect v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.47s
[INFO] running `Command { std: "docker" "inspect" "dde602d19300b17671f83fec50b504ac56d104252a64576bae85b97aaf350dd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dde602d19300b17671f83fec50b504ac56d104252a64576bae85b97aaf350dd5", kill_on_drop: false }`
[INFO] [stdout] dde602d19300b17671f83fec50b504ac56d104252a64576bae85b97aaf350dd5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0ceff2b86fda8c926fe0c9d6e823b75d594678d9731a8bf0e6c08d2cd3be8336
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0ceff2b86fda8c926fe0c9d6e823b75d594678d9731a8bf0e6c08d2cd3be8336", kill_on_drop: false }`
[INFO] [stderr]    Compiling hole-punch-connect v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `Command { std: "docker" "inspect" "0ceff2b86fda8c926fe0c9d6e823b75d594678d9731a8bf0e6c08d2cd3be8336", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ceff2b86fda8c926fe0c9d6e823b75d594678d9731a8bf0e6c08d2cd3be8336", kill_on_drop: false }`
[INFO] [stdout] 0ceff2b86fda8c926fe0c9d6e823b75d594678d9731a8bf0e6c08d2cd3be8336
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6ab76d5d035b0ab7e24ad8a15253cd40e7530f9d78bc311ef55792c0c704ab6b
[INFO] running `Command { std: "docker" "start" "-a" "6ab76d5d035b0ab7e24ad8a15253cd40e7530f9d78bc311ef55792c0c704ab6b", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/hole_punch_connect-4ff5006b6f6d5ae6
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/hole_punch_connect-e03ab05f15d1b1f0
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests hole-punch-connect
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/client.rs - client::HolePunchConnect::hole_punch_connect (line 69) ... FAILED
[INFO] [stdout] test src/client.rs - client::HolePunchConnect::new_hole_punched (line 17) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/client.rs - client::HolePunchConnect::hole_punch_connect (line 69) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `UdpSocket`
[INFO] [stdout]  --> src/client.rs:70:14
[INFO] [stdout]   |
[INFO] [stdout] 4 | let socket = UdpSocket::bind("0.0.0.0:0")?;
[INFO] [stdout]   |              ^^^^^^^^^ not found in this scope
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::net::UdpSocket;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `std::ops::Try`)
[INFO] [stdout]   --> src/client.rs:70:14
[INFO] [stdout]    |
[INFO] [stdout] 3  | / fn main() {
[INFO] [stdout] 4  | | let socket = UdpSocket::bind("0.0.0.0:0")?;
[INFO] [stdout]    | |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout] 5  | | socket.hole_punch_connect("domain.name:420")?;
[INFO] [stdout] 6  | | socket.send(b"Hello there")?;
[INFO] [stdout] ...  |
[INFO] [stdout] 9  | | socket.send(b"General Kenobi")?;
[INFO] [stdout] 10 | | }
[INFO] [stdout]    | |_- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `std::ops::Try` is not implemented for `()`
[INFO] [stdout]    = note: required by `std::ops::Try::from_error`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `std::ops::Try`)
[INFO] [stdout]   --> src/client.rs:71:1
[INFO] [stdout]    |
[INFO] [stdout] 3  | / fn main() {
[INFO] [stdout] 4  | | let socket = UdpSocket::bind("0.0.0.0:0")?;
[INFO] [stdout] 5  | | socket.hole_punch_connect("domain.name:420")?;
[INFO] [stdout]    | | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    | | |
[INFO] [stdout]    | | cannot use the `?` operator in a function that returns `()`
[INFO] [stdout] 6  | | socket.send(b"Hello there")?;
[INFO] [stdout] ...  |
[INFO] [stdout] 9  | | socket.send(b"General Kenobi")?;
[INFO] [stdout] 10 | | }
[INFO] [stdout]    | |_- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `std::ops::Try` is not implemented for `()`
[INFO] [stdout]    = note: required by `std::ops::Try::from_error`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `std::ops::Try`)
[INFO] [stdout]   --> src/client.rs:72:1
[INFO] [stdout]    |
[INFO] [stdout] 3  | / fn main() {
[INFO] [stdout] 4  | | let socket = UdpSocket::bind("0.0.0.0:0")?;
[INFO] [stdout] 5  | | socket.hole_punch_connect("domain.name:420")?;
[INFO] [stdout] 6  | | socket.send(b"Hello there")?;
[INFO] [stdout]    | | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    | | |
[INFO] [stdout]    | | cannot use the `?` operator in a function that returns `()`
[INFO] [stdout] ...  |
[INFO] [stdout] 9  | | socket.send(b"General Kenobi")?;
[INFO] [stdout] 10 | | }
[INFO] [stdout]    | |_- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `std::ops::Try` is not implemented for `()`
[INFO] [stdout]    = note: required by `std::ops::Try::from_error`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `std::ops::Try`)
[INFO] [stdout]   --> src/client.rs:74:1
[INFO] [stdout]    |
[INFO] [stdout] 3  | / fn main() {
[INFO] [stdout] 4  | | let socket = UdpSocket::bind("0.0.0.0:0")?;
[INFO] [stdout] 5  | | socket.hole_punch_connect("domain.name:420")?;
[INFO] [stdout] 6  | | socket.send(b"Hello there")?;
[INFO] [stdout] 7  | |
[INFO] [stdout] 8  | | socket.hole_punch_connect("other.domain:6392")?;
[INFO] [stdout]    | | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout] 9  | | socket.send(b"General Kenobi")?;
[INFO] [stdout] 10 | | }
[INFO] [stdout]    | |_- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `std::ops::Try` is not implemented for `()`
[INFO] [stdout]    = note: required by `std::ops::Try::from_error`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `std::ops::Try`)
[INFO] [stdout]   --> src/client.rs:75:1
[INFO] [stdout]    |
[INFO] [stdout] 3  | / fn main() {
[INFO] [stdout] 4  | | let socket = UdpSocket::bind("0.0.0.0:0")?;
[INFO] [stdout] 5  | | socket.hole_punch_connect("domain.name:420")?;
[INFO] [stdout] 6  | | socket.send(b"Hello there")?;
[INFO] [stdout] ...  |
[INFO] [stdout] 9  | | socket.send(b"General Kenobi")?;
[INFO] [stdout]    | | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    | | |
[INFO] [stdout]    | | cannot use the `?` operator in a function that returns `()`
[INFO] [stdout] 10 | | }
[INFO] [stdout]    | |_- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `std::ops::Try` is not implemented for `()`
[INFO] [stdout]    = note: required by `std::ops::Try::from_error`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0433.
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/client.rs - client::HolePunchConnect::new_hole_punched (line 17) stdout ----
[INFO] [stdout] Test executable failed (exit code 1).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] Error: Custom { kind: Other, error: "failed to lookup address information: Temporary failure in name resolution" }
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/client.rs - client::HolePunchConnect::hole_punch_connect (line 69)
[INFO] [stdout]     src/client.rs - client::HolePunchConnect::new_hole_punched (line 17)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "6ab76d5d035b0ab7e24ad8a15253cd40e7530f9d78bc311ef55792c0c704ab6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ab76d5d035b0ab7e24ad8a15253cd40e7530f9d78bc311ef55792c0c704ab6b", kill_on_drop: false }`
[INFO] [stdout] 6ab76d5d035b0ab7e24ad8a15253cd40e7530f9d78bc311ef55792c0c704ab6b
