[INFO] fetching crate zelda 0.1.1...
[INFO] testing zelda-0.1.1 against 1.47.0 for beta-1.48-1
[INFO] extracting crate zelda 0.1.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate zelda 0.1.1 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 zelda 0.1.1
[INFO] finished tweaking crates.io crate zelda 0.1.1
[INFO] tweaked toml for crates.io crate zelda 0.1.1 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 898d5f0f778e1fad263181dc5fc8e1e1788fce4ad11e9817e36a48c902f8064b
[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" "898d5f0f778e1fad263181dc5fc8e1e1788fce4ad11e9817e36a48c902f8064b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "898d5f0f778e1fad263181dc5fc8e1e1788fce4ad11e9817e36a48c902f8064b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "898d5f0f778e1fad263181dc5fc8e1e1788fce4ad11e9817e36a48c902f8064b", kill_on_drop: false }`
[INFO] [stdout] 898d5f0f778e1fad263181dc5fc8e1e1788fce4ad11e9817e36a48c902f8064b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 8009a2930aa4f145ab864142aadf8393d1e16e3759aad15b86a0ffab6b1e2881
[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" "8009a2930aa4f145ab864142aadf8393d1e16e3759aad15b86a0ffab6b1e2881", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling owning_ref v0.3.3
[INFO] [stderr]    Compiling bincode v1.3.1
[INFO] [stderr]    Compiling parking_lot_core v0.2.14
[INFO] [stderr]    Compiling parking_lot v0.4.8
[INFO] [stderr]    Compiling chashmap v2.2.2
[INFO] [stderr]    Compiling zelda v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.28s
[INFO] running `Command { std: "docker" "inspect" "8009a2930aa4f145ab864142aadf8393d1e16e3759aad15b86a0ffab6b1e2881", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8009a2930aa4f145ab864142aadf8393d1e16e3759aad15b86a0ffab6b1e2881", kill_on_drop: false }`
[INFO] [stdout] 8009a2930aa4f145ab864142aadf8393d1e16e3759aad15b86a0ffab6b1e2881
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 3001fd7f18a5b07f520df891077f712ede5ecbe9ae021dc61222bcda39372404
[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" "3001fd7f18a5b07f520df891077f712ede5ecbe9ae021dc61222bcda39372404", kill_on_drop: false }`
[INFO] [stderr]    Compiling zelda v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.15s
[INFO] running `Command { std: "docker" "inspect" "3001fd7f18a5b07f520df891077f712ede5ecbe9ae021dc61222bcda39372404", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3001fd7f18a5b07f520df891077f712ede5ecbe9ae021dc61222bcda39372404", kill_on_drop: false }`
[INFO] [stdout] 3001fd7f18a5b07f520df891077f712ede5ecbe9ae021dc61222bcda39372404
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] [stdout] ad53f54fa151f0b8d4e84b2a3bd70fa8c669a601585d736c12cc94b419debf0e
[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" "ad53f54fa151f0b8d4e84b2a3bd70fa8c669a601585d736c12cc94b419debf0e", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/zelda-a08ff958e63025be
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] Server connected to client!
[INFO] [stdout] Client received content: Hello, Client!, estimated RTT: 0 ms, offset: 0 ms, has estimate: false
[INFO] [stdout] Client received content: Hello, Client!, estimated RTT: 1 ms, offset: 7 ms, has estimate: true
[INFO] [stdout] Client received content: Hello, Client!, estimated RTT: 1 ms, offset: 7 ms, has estimate: true
[INFO] [stdout] Client received content: Hello, Client!, estimated RTT: 1 ms, offset: 10 ms, has estimate: true
[INFO] [stdout] Client received content: Hello, Client!, estimated RTT: 1 ms, offset: 11 ms, has estimate: true
[INFO] [stdout] Client received content: Hello, Client!, estimated RTT: 1 ms, offset: 8 ms, has estimate: true
[INFO] [stdout] Client received content: Hello, Client!, estimated RTT: 1 ms, offset: 8 ms, has estimate: true
[INFO] [stdout] Client received content: Hello, Client!, estimated RTT: 1 ms, offset: 8 ms, has estimate: true
[INFO] [stdout] Client received content: Hello, Client!, estimated RTT: 1 ms, offset: 7 ms, has estimate: true
[INFO] [stdout] Client received content: Hello, Client!, estimated RTT: 1 ms, offset: 9 ms, has estimate: true
[INFO] [stdout] Client received content: Hello, Client!, estimated RTT: 1 ms, offset: 9 ms, has estimate: true
[INFO] [stdout] Client received content: Hello, Client!, estimated RTT: 1 ms, offset: 9 ms, has estimate: true
[INFO] [stdout] Client received content: Hello, Client!, estimated RTT: 1 ms, offset: 11 ms, has estimate: true
[INFO] [stdout] Client received content: Hello, Client!, estimated RTT: 1 ms, offset: 11 ms, has estimate: true
[INFO] [stdout] Client received content: Hello, Client!, estimated RTT: 1 ms, offset: 11 ms, has estimate: true
[INFO] [stdout] Client received content: Hello, Client!, estimated RTT: 1 ms, offset: 9 ms, has estimate: true
[INFO] [stdout] Client received content: Hello, Client!, estimated RTT: 1 ms, offset: 9 ms, has estimate: true
[INFO] [stdout] Client received content: Hello, Client!, estimated RTT: 0 ms, offset: 9 ms, has estimate: true
[INFO] [stdout] Client received content: Hello, Client!, estimated RTT: 1 ms, offset: 9 ms, has estimate: true
[INFO] [stdout] Client received content: Hello, Client!, estimated RTT: 1 ms, offset: 9 ms, has estimate: true
[INFO] [stdout] Client connected to server!
[INFO] [stdout] Server received content: Hello, Server!, estimated RTT: 0 ms, offset: 0 ms, has estimate: false
[INFO] [stdout] Server received content: Hello, Server!, estimated RTT: 5 ms, offset: 7 ms, has estimate: true
[INFO] [stdout] Server received content: Hello, Server!, estimated RTT: 4 ms, offset: 15 ms, has estimate: true
[INFO] [stdout] Server received content: Hello, Server!, estimated RTT: 4 ms, offset: 11 ms, has estimate: true
[INFO] [stdout] Server received content: Hello, Server!, estimated RTT: 4 ms, offset: 5 ms, has estimate: true
[INFO] [stdout] Server received content: Hello, Server!, estimated RTT: 3 ms, offset: 11 ms, has estimate: true
[INFO] [stdout] Server received content: Hello, Server!, estimated RTT: 3 ms, offset: 11 ms, has estimate: true
[INFO] [stdout] Server received content: Hello, Server!, estimated RTT: 3 ms, offset: 11 ms, has estimate: true
[INFO] [stdout] Server received content: Hello, Server!, estimated RTT: 2 ms, offset: 12 ms, has estimate: true
[INFO] [stdout] Server received content: Hello, Server!, estimated RTT: 2 ms, offset: 10 ms, has estimate: true
[INFO] [stdout] Server received content: Hello, Server!, estimated RTT: 2 ms, offset: 10 ms, has estimate: true
[INFO] [stdout] Server received content: Hello, Server!, estimated RTT: 2 ms, offset: 10 ms, has estimate: true
[INFO] [stdout] Server received content: Hello, Server!, estimated RTT: 2 ms, offset: 5 ms, has estimate: true
[INFO] [stdout] Server received content: Hello, Server!, estimated RTT: 2 ms, offset: 8 ms, has estimate: true
[INFO] [stdout] Server received content: Hello, Server!, estimated RTT: 2 ms, offset: 8 ms, has estimate: true
[INFO] [stdout] Server received content: Hello, Server!, estimated RTT: 2 ms, offset: 10 ms, has estimate: true
[INFO] [stdout] Server received content: Hello, Server!, estimated RTT: 2 ms, offset: 10 ms, has estimate: true
[INFO] [stdout] Server received content: Hello, Server!, estimated RTT: 1 ms, offset: 10 ms, has estimate: true
[INFO] [stdout] Server received content: Hello, Server!, estimated RTT: 1 ms, offset: 10 ms, has estimate: true
[INFO] [stdout] Server received content: Hello, Server!, estimated RTT: 2 ms, offset: 4 ms, has estimate: true
[INFO] [stdout] Client disconnnected from server!
[INFO] [stdout] Server disconnnected from client!
[INFO] [stdout] test tests::sending_and_receiving ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests zelda
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 5) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 5) stdout ----
[INFO] [stdout] error: expected one of `.`, `;`, `?`, `}`, or an operator, found `=>`
[INFO] [stdout]   --> src/lib.rs:23:28
[INFO] [stdout]    |
[INFO] [stdout] 21 |     Event::Connected(addr) => {
[INFO] [stdout]    |                            ^^ expected one of `.`, `;`, `?`, `}`, or an operator
[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/lib.rs:12:15
[INFO] [stdout]    |
[INFO] [stdout] 3  | / fn main() {
[INFO] [stdout] 4  | | use std::net::SocketAddr;
[INFO] [stdout] 5  | | use crossbeam::channel::{Sender, Receiver};
[INFO] [stdout] 6  | | use zelda::{Socket, Config, Packet, Event};
[INFO] [stdout] ...  |
[INFO] [stdout] 10 | | let socket1 = Socket::bind(socket_address, Config::default())?;
[INFO] [stdout]    | |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout] ...  |
[INFO] [stdout] 31 | | }
[INFO] [stdout] 32 | | }
[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/lib.rs:13:15
[INFO] [stdout]    |
[INFO] [stdout] 3  | / fn main() {
[INFO] [stdout] 4  | | use std::net::SocketAddr;
[INFO] [stdout] 5  | | use crossbeam::channel::{Sender, Receiver};
[INFO] [stdout] 6  | | use zelda::{Socket, Config, Packet, Event};
[INFO] [stdout] ...  |
[INFO] [stdout] 11 | | let socket2 = Socket::bind_any(Config::default())?;
[INFO] [stdout]    | |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout] ...  |
[INFO] [stdout] 31 | | }
[INFO] [stdout] 32 | | }
[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 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 5)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 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" "ad53f54fa151f0b8d4e84b2a3bd70fa8c669a601585d736c12cc94b419debf0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad53f54fa151f0b8d4e84b2a3bd70fa8c669a601585d736c12cc94b419debf0e", kill_on_drop: false }`
[INFO] [stdout] ad53f54fa151f0b8d4e84b2a3bd70fa8c669a601585d736c12cc94b419debf0e
