[INFO] fetching crate firerust 1.0.1...
[INFO] testing firerust-1.0.1 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate firerust 1.0.1 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate firerust 1.0.1
[INFO] finished tweaking crates.io crate firerust 1.0.1
[INFO] tweaked toml for crates.io crate firerust 1.0.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate firerust 1.0.1 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate firerust 1.0.1 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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f2bb2864b28601b9dbebc0d20ec1a589aabb36e77da8210bb0401281cad9b4d5
[INFO] running `Command { std: "docker" "start" "-a" "f2bb2864b28601b9dbebc0d20ec1a589aabb36e77da8210bb0401281cad9b4d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f2bb2864b28601b9dbebc0d20ec1a589aabb36e77da8210bb0401281cad9b4d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2bb2864b28601b9dbebc0d20ec1a589aabb36e77da8210bb0401281cad9b4d5", kill_on_drop: false }`
[INFO] [stdout] f2bb2864b28601b9dbebc0d20ec1a589aabb36e77da8210bb0401281cad9b4d5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 64596afa38c094b2a871402088fdf29e5f35a65f20fb18bc1f191ab84793ee36
[INFO] running `Command { std: "docker" "start" "-a" "64596afa38c094b2a871402088fdf29e5f35a65f20fb18bc1f191ab84793ee36", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling libc v0.2.123
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling matches v0.1.9
[INFO] [stderr]    Compiling openssl v0.10.38
[INFO] [stderr]    Compiling log v0.4.16
[INFO] [stderr]    Compiling percent-encoding v2.1.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.7
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]    Compiling native-tls v0.2.10
[INFO] [stderr]    Compiling tinyvec v1.5.1
[INFO] [stderr]    Compiling once_cell v1.10.0
[INFO] [stderr]    Compiling ryu v1.0.9
[INFO] [stderr]    Compiling form_urlencoded v1.0.1
[INFO] [stderr]    Compiling itoa v1.0.1
[INFO] [stderr]    Compiling openssl-sys v0.9.72
[INFO] [stderr]    Compiling unicode-normalization v0.1.19
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling idna v0.2.3
[INFO] [stderr]    Compiling url v2.2.2
[INFO] [stderr]    Compiling firerust v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.18s
[INFO] running `Command { std: "docker" "inspect" "64596afa38c094b2a871402088fdf29e5f35a65f20fb18bc1f191ab84793ee36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64596afa38c094b2a871402088fdf29e5f35a65f20fb18bc1f191ab84793ee36", kill_on_drop: false }`
[INFO] [stdout] 64596afa38c094b2a871402088fdf29e5f35a65f20fb18bc1f191ab84793ee36
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2a0c6f04b4419b1de4251195f52848a7dfc37a0681fbf50b5371f37f4399db24
[INFO] running `Command { std: "docker" "start" "-a" "2a0c6f04b4419b1de4251195f52848a7dfc37a0681fbf50b5371f37f4399db24", kill_on_drop: false }`
[INFO] [stderr]    Compiling firerust v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `Command { std: "docker" "inspect" "2a0c6f04b4419b1de4251195f52848a7dfc37a0681fbf50b5371f37f4399db24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a0c6f04b4419b1de4251195f52848a7dfc37a0681fbf50b5371f37f4399db24", kill_on_drop: false }`
[INFO] [stdout] 2a0c6f04b4419b1de4251195f52848a7dfc37a0681fbf50b5371f37f4399db24
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 412d5dd28c7d6a498eb6f404b2da3b3576e2553446f78b71ee94e5ac9e3032d3
[INFO] running `Command { std: "docker" "start" "-a" "412d5dd28c7d6a498eb6f404b2da3b3576e2553446f78b71ee94e5ac9e3032d3", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/firerust-2b9972602a06a88b)
[INFO] [stderr]    Doc-tests firerust
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test src/connector.rs - connector::Connector::request (line 83) ... FAILED
[INFO] [stdout] test src/lib.rs - RealtimeReference::delete (line 259) ... FAILED
[INFO] [stdout] test src/lib.rs - RealtimeReference::child (line 141) ... FAILED
[INFO] [stdout] test src/connector.rs - connector::Connector::reconnect (line 53) ... FAILED
[INFO] [stdout] test src/lib.rs - RealtimeReference::update (line 233) ... FAILED
[INFO] [stdout] test src/lib.rs - RealtimeReference::set (line 181) ... FAILED
[INFO] [stdout] test src/lib.rs - RealtimeReference::set_unique (line 207) ... FAILED
[INFO] [stdout] test src/lib.rs - RealtimeReference::on_snapshot (line 281) ... FAILED
[INFO] [stdout] test src/lib.rs - FirebaseClient::reference (line 110) ... FAILED
[INFO] [stdout] test src/lib.rs - connector (line 46) ... FAILED
[INFO] [stdout] test src/lib.rs - FirebaseClient::auth (line 97) ... FAILED
[INFO] [stdout] test src/lib.rs - FirebaseClient::new (line 60) ... FAILED
[INFO] [stdout] test src/lib.rs - RealtimeReference::get (line 155) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 12) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/connector.rs - connector::Connector::request (line 83) stdout ----
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/connector.rs:87:67
[INFO] [stdout]    |
[INFO] [stdout] 84 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_connector_rs_83_0() {
[INFO] [stdout]    |                                      ---------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 87 | let connector = Connector::new("docs-example.firebaseio.com", 443)?;
[INFO] [stdout]    |                                                                   ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]    |
[INFO] [stdout] 84 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_connector_rs_83_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 85 | use firerust::connector::{ Connector, Method };
[INFO] [stdout] ...
[INFO] [stdout] 88 | connector.request(Method::Get, "/", None, None)?;
[INFO] [stdout] 89 +     Ok(())
[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 `FromResidual`)
[INFO] [stdout]   --> src/connector.rs:88:48
[INFO] [stdout]    |
[INFO] [stdout] 84 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_connector_rs_83_0() {
[INFO] [stdout]    |                                      ---------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 88 | connector.request(Method::Get, "/", None, None)?;
[INFO] [stdout]    |                                                ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]    |
[INFO] [stdout] 84 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_connector_rs_83_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 85 | use firerust::connector::{ Connector, Method };
[INFO] [stdout] ...
[INFO] [stdout] 88 | connector.request(Method::Get, "/", None, None)?;
[INFO] [stdout] 89 +     Ok(())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 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] ---- src/lib.rs - RealtimeReference::delete (line 259) stdout ----
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> src/lib.rs:263:74
[INFO] [stdout]     |
[INFO] [stdout] 260 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_259_0() {
[INFO] [stdout]     |                                      ----------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 263 | let client = FirebaseClient::new("https://docs-examples.firebaseio.com/")?;
[INFO] [stdout]     |                                                                          ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]     |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]     |
[INFO] [stdout] 260 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_259_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 261 | use firerust::FirebaseClient;
[INFO] [stdout] ...
[INFO] [stdout] 264 | client.reference("/").delete()?;
[INFO] [stdout] 265 +     Ok(())
[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 `FromResidual`)
[INFO] [stdout]    --> src/lib.rs:264:31
[INFO] [stdout]     |
[INFO] [stdout] 260 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_259_0() {
[INFO] [stdout]     |                                      ----------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 264 | client.reference("/").delete()?;
[INFO] [stdout]     |                               ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]     |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]     |
[INFO] [stdout] 260 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_259_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 261 | use firerust::FirebaseClient;
[INFO] [stdout] ...
[INFO] [stdout] 264 | client.reference("/").delete()?;
[INFO] [stdout] 265 +     Ok(())
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 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] ---- src/lib.rs - RealtimeReference::child (line 141) stdout ----
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> src/lib.rs:145:74
[INFO] [stdout]     |
[INFO] [stdout] 142 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_141_0() {
[INFO] [stdout]     |                                      ----------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 145 | let client = FirebaseClient::new("https://docs-examples.firebaseio.com/")?;
[INFO] [stdout]     |                                                                          ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]     |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]     |
[INFO] [stdout] 142 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_141_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 143 | use firerust::FirebaseClient;
[INFO] [stdout] ...
[INFO] [stdout] 147 | let child_reference = reference.child("child");
[INFO] [stdout] 148 +     Ok(())
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/connector.rs - connector::Connector::reconnect (line 53) stdout ----
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/connector.rs:57:67
[INFO] [stdout]    |
[INFO] [stdout] 54 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_connector_rs_53_0() {
[INFO] [stdout]    |                                      ---------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 57 | let connector = Connector::new("docs-example.firebaseio.com", 443)?;
[INFO] [stdout]    |                                                                   ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]    |
[INFO] [stdout] 54 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_connector_rs_53_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 55 | use firerust::connector::Connector;
[INFO] [stdout] ...
[INFO] [stdout] 58 | connector.reconnect()?;
[INFO] [stdout] 59 +     Ok(())
[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 `FromResidual`)
[INFO] [stdout]   --> src/connector.rs:58:22
[INFO] [stdout]    |
[INFO] [stdout] 54 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_connector_rs_53_0() {
[INFO] [stdout]    |                                      ---------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 58 | connector.reconnect()?;
[INFO] [stdout]    |                      ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]    |
[INFO] [stdout] 54 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_connector_rs_53_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 55 | use firerust::connector::Connector;
[INFO] [stdout] ...
[INFO] [stdout] 58 | connector.reconnect()?;
[INFO] [stdout] 59 +     Ok(())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 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] ---- src/lib.rs - RealtimeReference::update (line 233) stdout ----
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> src/lib.rs:237:74
[INFO] [stdout]     |
[INFO] [stdout] 234 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_233_0() {
[INFO] [stdout]     |                                      ----------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 237 | let client = FirebaseClient::new("https://docs-examples.firebaseio.com/")?;
[INFO] [stdout]     |                                                                          ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]     |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]     |
[INFO] [stdout] 234 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_233_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 235 | use firerust::FirebaseClient;
[INFO] [stdout] ...
[INFO] [stdout] 240 | }))?;
[INFO] [stdout] 241 +     Ok(())
[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 `FromResidual`)
[INFO] [stdout]    --> src/lib.rs:240:4
[INFO] [stdout]     |
[INFO] [stdout] 234 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_233_0() {
[INFO] [stdout]     |                                      ----------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 240 | }))?;
[INFO] [stdout]     |    ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]     |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]     |
[INFO] [stdout] 234 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_233_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 235 | use firerust::FirebaseClient;
[INFO] [stdout] ...
[INFO] [stdout] 240 | }))?;
[INFO] [stdout] 241 +     Ok(())
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 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] ---- src/lib.rs - RealtimeReference::set (line 181) stdout ----
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> src/lib.rs:185:74
[INFO] [stdout]     |
[INFO] [stdout] 182 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_181_0() {
[INFO] [stdout]     |                                      ----------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 185 | let client = FirebaseClient::new("https://docs-examples.firebaseio.com/")?;
[INFO] [stdout]     |                                                                          ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]     |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]     |
[INFO] [stdout] 182 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_181_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 183 | use firerust::FirebaseClient;
[INFO] [stdout] ...
[INFO] [stdout] 188 | }))?;
[INFO] [stdout] 189 +     Ok(())
[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 `FromResidual`)
[INFO] [stdout]    --> src/lib.rs:188:4
[INFO] [stdout]     |
[INFO] [stdout] 182 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_181_0() {
[INFO] [stdout]     |                                      ----------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 188 | }))?;
[INFO] [stdout]     |    ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]     |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]     |
[INFO] [stdout] 182 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_181_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 183 | use firerust::FirebaseClient;
[INFO] [stdout] ...
[INFO] [stdout] 188 | }))?;
[INFO] [stdout] 189 +     Ok(())
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 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] ---- src/lib.rs - RealtimeReference::set_unique (line 207) stdout ----
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> src/lib.rs:211:74
[INFO] [stdout]     |
[INFO] [stdout] 208 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_207_0() {
[INFO] [stdout]     |                                      ----------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 211 | let client = FirebaseClient::new("https://docs-examples.firebaseio.com/")?;
[INFO] [stdout]     |                                                                          ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]     |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]     |
[INFO] [stdout] 208 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_207_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 209 | use firerust::FirebaseClient;
[INFO] [stdout] ...
[INFO] [stdout] 214 | }))?;
[INFO] [stdout] 215 +     Ok(())
[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 `FromResidual`)
[INFO] [stdout]    --> src/lib.rs:214:4
[INFO] [stdout]     |
[INFO] [stdout] 208 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_207_0() {
[INFO] [stdout]     |                                      ----------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 214 | }))?;
[INFO] [stdout]     |    ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]     |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]     |
[INFO] [stdout] 208 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_207_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 209 | use firerust::FirebaseClient;
[INFO] [stdout] ...
[INFO] [stdout] 214 | }))?;
[INFO] [stdout] 215 +     Ok(())
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 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] ---- src/lib.rs - RealtimeReference::on_snapshot (line 281) stdout ----
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> src/lib.rs:286:74
[INFO] [stdout]     |
[INFO] [stdout] 282 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_281_0() {
[INFO] [stdout]     |                                      ----------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 286 | let client = FirebaseClient::new("https://docs-examples.firebaseio.com/")?;
[INFO] [stdout]     |                                                                          ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]     |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]     |
[INFO] [stdout] 282 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_281_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 283 | use firerust::FirebaseClient;
[INFO] [stdout] ...
[INFO] [stdout] 290 | });
[INFO] [stdout] 291 +     Ok(())
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - FirebaseClient::reference (line 110) stdout ----
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> src/lib.rs:114:74
[INFO] [stdout]     |
[INFO] [stdout] 111 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_110_0() {
[INFO] [stdout]     |                                      ----------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 114 | let client = FirebaseClient::new("https://docs-examples.firebaseio.com/")?;
[INFO] [stdout]     |                                                                          ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]     |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]     |
[INFO] [stdout] 111 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_110_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 112 | use firerust::FirebaseClient;
[INFO] [stdout] ...
[INFO] [stdout] 115 | let reference = client.reference("/");
[INFO] [stdout] 116 +     Ok(())
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - connector (line 46) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Method`
[INFO] [stdout]   --> src/lib.rs:51:34
[INFO] [stdout]    |
[INFO] [stdout] 51 | let response = connector.request(Method::Get, "/", None, None)?;
[INFO] [stdout]    |                                  ^^^^^^ use of undeclared type `Method`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this enum
[INFO] [stdout]    |
[INFO] [stdout] 45 + use firerust::connector::Method;
[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 `FromResidual`)
[INFO] [stdout]   --> src/lib.rs:50:67
[INFO] [stdout]    |
[INFO] [stdout] 47 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_46_0() {
[INFO] [stdout]    |                                      ---------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 50 | let connector = Connector::new("docs-example.firebaseio.com", 443)?;
[INFO] [stdout]    |                                                                   ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]    |
[INFO] [stdout] 47 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_46_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 48 | use firerust::connector::Connector;
[INFO] [stdout] ...
[INFO] [stdout] 53 | drop(connector);
[INFO] [stdout] 54 +     Ok(())
[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 `FromResidual`)
[INFO] [stdout]   --> src/lib.rs:51:63
[INFO] [stdout]    |
[INFO] [stdout] 47 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_46_0() {
[INFO] [stdout]    |                                      ---------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 51 | let response = connector.request(Method::Get, "/", None, None)?;
[INFO] [stdout]    |                                                               ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]    |
[INFO] [stdout] 47 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_46_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 48 | use firerust::connector::Connector;
[INFO] [stdout] ...
[INFO] [stdout] 53 | drop(connector);
[INFO] [stdout] 54 +     Ok(())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 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/lib.rs - FirebaseClient::auth (line 97) stdout ----
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> src/lib.rs:101:74
[INFO] [stdout]     |
[INFO] [stdout]  98 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_97_0() {
[INFO] [stdout]     |                                      ---------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 101 | let client = FirebaseClient::new("https://docs-examples.firebaseio.com/")?;
[INFO] [stdout]     |                                                                          ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]     |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]     |
[INFO] [stdout]  98 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_97_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]  99 | use firerust::FirebaseClient;
[INFO] [stdout] ...
[INFO] [stdout] 102 | client.auth("ID_TOKEN");
[INFO] [stdout] 103 +     Ok(())
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - FirebaseClient::new (line 60) stdout ----
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/lib.rs:64:74
[INFO] [stdout]    |
[INFO] [stdout] 61 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_60_0() {
[INFO] [stdout]    |                                      ---------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 64 | let client = FirebaseClient::new("https://docs-examples.firebaseio.com/")?;
[INFO] [stdout]    |                                                                          ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]    |
[INFO] [stdout] 61 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_60_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 62 | use firerust::FirebaseClient;
[INFO] [stdout] 63 |  
[INFO] [stdout] 64 | let client = FirebaseClient::new("https://docs-examples.firebaseio.com/")?;
[INFO] [stdout] 65 +     Ok(())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - RealtimeReference::get (line 155) stdout ----
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> src/lib.rs:160:74
[INFO] [stdout]     |
[INFO] [stdout] 156 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_155_0() {
[INFO] [stdout]     |                                      ----------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 160 | let client = FirebaseClient::new("https://docs-examples.firebaseio.com/")?;
[INFO] [stdout]     |                                                                          ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]     |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]     |
[INFO] [stdout] 156 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_155_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 157 | use firerust::FirebaseClient;
[INFO] [stdout] ...
[INFO] [stdout] 161 | assert_eq!(client.reference("/").get::<Value>().is_ok(), true);
[INFO] [stdout] 162 +     Ok(())
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - (line 12) stdout ----
[INFO] [stdout] Test executable failed (exit status: 1).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] Error: GatewayTimeout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/connector.rs - connector::Connector::reconnect (line 53)
[INFO] [stdout]     src/connector.rs - connector::Connector::request (line 83)
[INFO] [stdout]     src/lib.rs - (line 12)
[INFO] [stdout]     src/lib.rs - FirebaseClient::auth (line 97)
[INFO] [stdout]     src/lib.rs - FirebaseClient::new (line 60)
[INFO] [stdout]     src/lib.rs - FirebaseClient::reference (line 110)
[INFO] [stdout]     src/lib.rs - RealtimeReference::child (line 141)
[INFO] [stdout]     src/lib.rs - RealtimeReference::delete (line 259)
[INFO] [stdout]     src/lib.rs - RealtimeReference::get (line 155)
[INFO] [stdout]     src/lib.rs - RealtimeReference::on_snapshot (line 281)
[INFO] [stdout]     src/lib.rs - RealtimeReference::set (line 181)
[INFO] [stdout]     src/lib.rs - RealtimeReference::set_unique (line 207)
[INFO] [stdout]     src/lib.rs - RealtimeReference::update (line 233)
[INFO] [stdout]     src/lib.rs - connector (line 46)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 14 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.54s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "412d5dd28c7d6a498eb6f404b2da3b3576e2553446f78b71ee94e5ac9e3032d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "412d5dd28c7d6a498eb6f404b2da3b3576e2553446f78b71ee94e5ac9e3032d3", kill_on_drop: false }`
[INFO] [stdout] 412d5dd28c7d6a498eb6f404b2da3b3576e2553446f78b71ee94e5ac9e3032d3