[INFO] cloning repository https://github.com/FTB-Gamepedia/ftb-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/FTB-Gamepedia/ftb-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFTB-Gamepedia%2Fftb-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFTB-Gamepedia%2Fftb-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 13a561285ad16a610429e1ca17f0ceb9e4479d85
[INFO] checking FTB-Gamepedia/ftb-rs against try#4a23c45c7893f1416456144e3883cc48ea91722e for pr-82322
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFTB-Gamepedia%2Fftb-rs" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/FTB-Gamepedia/ftb-rs on toolchain 4a23c45c7893f1416456144e3883cc48ea91722e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a23c45c7893f1416456144e3883cc48ea91722e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/FTB-Gamepedia/ftb-rs
[INFO] finished tweaking git repo https://github.com/FTB-Gamepedia/ftb-rs
[INFO] tweaked toml for git repo https://github.com/FTB-Gamepedia/ftb-rs written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/FTB-Gamepedia/ftb-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a23c45c7893f1416456144e3883cc48ea91722e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/FTB-Gamepedia/mediawiki-rs`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num-iter v0.1.41
[INFO] [stderr]   Downloaded base-x v0.2.6
[INFO] [stderr]   Downloaded deflate v0.8.6
[INFO] [stderr]   Downloaded num-rational v0.3.0
[INFO] [stderr]   Downloaded png v0.16.7
[INFO] [stderr]   Downloaded futures-sink v0.3.6
[INFO] [stderr]   Downloaded futures-channel v0.3.6
[INFO] [stderr]   Downloaded standback v0.2.11
[INFO] [stderr]   Downloaded cookie v0.14.2
[INFO] [stderr]   Downloaded futures-util v0.3.6
[INFO] [stderr]   Downloaded bytemuck v1.4.1
[INFO] [stderr]   Downloaded image v0.23.10
[INFO] [stderr]   Downloaded futures-io v0.3.6
[INFO] [stderr]   Downloaded libc v0.2.79
[INFO] [stderr]   Downloaded syn v1.0.45
[INFO] [stderr]   Downloaded pin-project-lite v0.1.10
[INFO] [stderr]   Downloaded futures-core v0.3.6
[INFO] [stderr]   Downloaded time v0.2.22
[INFO] [stderr]   Downloaded futures-task v0.3.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+4a23c45c7893f1416456144e3883cc48ea91722e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d4c817b8fd593c67b570c4b2a044abaad2b8de1ccf452c29df6e0ac8ac7cd0c5
[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" "d4c817b8fd593c67b570c4b2a044abaad2b8de1ccf452c29df6e0ac8ac7cd0c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d4c817b8fd593c67b570c4b2a044abaad2b8de1ccf452c29df6e0ac8ac7cd0c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4c817b8fd593c67b570c4b2a044abaad2b8de1ccf452c29df6e0ac8ac7cd0c5", kill_on_drop: false }`
[INFO] [stdout] d4c817b8fd593c67b570c4b2a044abaad2b8de1ccf452c29df6e0ac8ac7cd0c5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+4a23c45c7893f1416456144e3883cc48ea91722e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 57f0daebe8f15a6f173ee363d11d176e7b5c5bccaa10025d2b97597c803988f1
[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" "57f0daebe8f15a6f173ee363d11d176e7b5c5bccaa10025d2b97597c803988f1", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling syn v1.0.45
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling cc v1.0.61
[INFO] [stderr]     Checking futures-core v0.3.6
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking pin-project-lite v0.1.10
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]     Checking futures-io v0.3.6
[INFO] [stderr]     Checking futures-sink v0.3.6
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking openssl-probe v0.1.2
[INFO] [stderr]     Checking tower-service v0.3.0
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]     Checking ipnet v2.3.0
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-rational v0.3.0
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling standback v0.2.11
[INFO] [stderr]    Compiling time v0.2.22
[INFO] [stderr]    Compiling cookie v0.14.2
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking futures-task v0.3.6
[INFO] [stderr]     Checking futures-channel v0.3.6
[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]     Checking http v0.2.1
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking encoding_rs v0.8.24
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]     Checking tracing v0.1.21
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking aho-corasick v0.7.14
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]    Compiling mime_guess v2.0.3
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.35
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking socket2 v0.3.15
[INFO] [stderr]     Checking png v0.16.7
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking regex v1.4.1
[INFO] [stderr]    Compiling openssl v0.10.30
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]     Checking http-body v0.3.1
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking image v0.23.10
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-tls v0.3.1
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]     Checking time-macros v0.1.1
[INFO] [stderr]     Checking pin-project v0.4.27
[INFO] [stderr]     Checking futures-util v0.3.6
[INFO] [stderr]     Checking h2 v0.2.6
[INFO] [stderr]     Checking serde v1.0.117
[INFO] [stderr]     Checking hyper v0.13.8
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]     Checking serde_json v1.0.59
[INFO] [stderr]     Checking hyper-tls v0.4.3
[INFO] [stderr]     Checking reqwest v0.10.8
[INFO] [stderr]     Checking mediawiki v0.0.1 (https://github.com/FTB-Gamepedia/mediawiki-rs#54b48419)
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a method that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/mediawiki-rs-ccdb6ca811e3accb/54b4841/src/lib.rs:108:21
[INFO] [stdout]     |
[INFO] [stdout] 99  | /     pub fn login(&self) -> Result<(), Error> {
[INFO] [stdout] 100 | |         let token = self.get_token::<Login>()?;
[INFO] [stdout] 101 | |         let mut request = self.request();
[INFO] [stdout] 102 | |         request
[INFO] [stdout] ...   |
[INFO] [stdout] 108 | |         let inner = json.get("login")?;
[INFO] [stdout]     | |                     ^^^^^^^^^^^^^^^^^^ cannot use the `?` operator in a method that returns `Result<(), Error>`
[INFO] [stdout] ...   |
[INFO] [stdout] 116 | |         }
[INFO] [stdout] 117 | |     }
[INFO] [stdout]     | |_____- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `FromResidual<std::option::Option<!>>` is not implemented for `Result<(), Error>`
[INFO] [stdout]     = note: required by `from_residual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a method that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/mediawiki-rs-ccdb6ca811e3accb/54b4841/src/lib.rs:109:22
[INFO] [stdout]     |
[INFO] [stdout] 99  | /     pub fn login(&self) -> Result<(), Error> {
[INFO] [stdout] 100 | |         let token = self.get_token::<Login>()?;
[INFO] [stdout] 101 | |         let mut request = self.request();
[INFO] [stdout] 102 | |         request
[INFO] [stdout] ...   |
[INFO] [stdout] 109 | |         let result = inner.get("result")?.as_str()?;
[INFO] [stdout]     | |                      ^^^^^^^^^^^^^^^^^^^^ cannot use the `?` operator in a method that returns `Result<(), Error>`
[INFO] [stdout] ...   |
[INFO] [stdout] 116 | |         }
[INFO] [stdout] 117 | |     }
[INFO] [stdout]     | |_____- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `FromResidual<std::option::Option<!>>` is not implemented for `Result<(), Error>`
[INFO] [stdout]     = note: required by `from_residual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a method that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/mediawiki-rs-ccdb6ca811e3accb/54b4841/src/lib.rs:109:22
[INFO] [stdout]     |
[INFO] [stdout] 99  | /     pub fn login(&self) -> Result<(), Error> {
[INFO] [stdout] 100 | |         let token = self.get_token::<Login>()?;
[INFO] [stdout] 101 | |         let mut request = self.request();
[INFO] [stdout] 102 | |         request
[INFO] [stdout] ...   |
[INFO] [stdout] 109 | |         let result = inner.get("result")?.as_str()?;
[INFO] [stdout]     | |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot use the `?` operator in a method that returns `Result<(), Error>`
[INFO] [stdout] ...   |
[INFO] [stdout] 116 | |         }
[INFO] [stdout] 117 | |     }
[INFO] [stdout]     | |_____- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `FromResidual<std::option::Option<!>>` is not implemented for `Result<(), Error>`
[INFO] [stdout]     = note: required by `from_residual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a method that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/mediawiki-rs-ccdb6ca811e3accb/54b4841/src/lib.rs:132:13
[INFO] [stdout]     |
[INFO] [stdout] 121 | /     pub fn get_token<T>(&self) -> Result<Token<T>, Error>
[INFO] [stdout] 122 | |     where
[INFO] [stdout] 123 | |         T: TokenType,
[INFO] [stdout] 124 | |     {
[INFO] [stdout] ...   |
[INFO] [stdout] 132 | |             json.get("query")?
[INFO] [stdout]     | |             ^^^^^^^^^^^^^^^^^^ cannot use the `?` operator in a method that returns `Result<Token<T>, Error>`
[INFO] [stdout] ...   |
[INFO] [stdout] 136 | |         ))
[INFO] [stdout] 137 | |     }
[INFO] [stdout]     | |_____- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `FromResidual<std::option::Option<!>>` is not implemented for `Result<Token<T>, Error>`
[INFO] [stdout]     = note: required by `from_residual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a method that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/mediawiki-rs-ccdb6ca811e3accb/54b4841/src/lib.rs:132:13
[INFO] [stdout]     |
[INFO] [stdout] 121 |  /     pub fn get_token<T>(&self) -> Result<Token<T>, Error>
[INFO] [stdout] 122 |  |     where
[INFO] [stdout] 123 |  |         T: TokenType,
[INFO] [stdout] 124 |  |     {
[INFO] [stdout] ...    |
[INFO] [stdout] 132 | /|             json.get("query")?
[INFO] [stdout] 133 | ||                 .get("tokens")?
[INFO] [stdout]     | ||_______________________________^ cannot use the `?` operator in a method that returns `Result<Token<T>, Error>`
[INFO] [stdout] ...    |
[INFO] [stdout] 136 |  |         ))
[INFO] [stdout] 137 |  |     }
[INFO] [stdout]     |  |_____- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `FromResidual<std::option::Option<!>>` is not implemented for `Result<Token<T>, Error>`
[INFO] [stdout]     = note: required by `from_residual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a method that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/mediawiki-rs-ccdb6ca811e3accb/54b4841/src/lib.rs:132:13
[INFO] [stdout]     |
[INFO] [stdout] 121 |  /     pub fn get_token<T>(&self) -> Result<Token<T>, Error>
[INFO] [stdout] 122 |  |     where
[INFO] [stdout] 123 |  |         T: TokenType,
[INFO] [stdout] 124 |  |     {
[INFO] [stdout] ...    |
[INFO] [stdout] 132 | /|             json.get("query")?
[INFO] [stdout] 133 | ||                 .get("tokens")?
[INFO] [stdout] 134 | ||                 .get(T::out_type())?
[INFO] [stdout]     | ||____________________________________^ cannot use the `?` operator in a method that returns `Result<Token<T>, Error>`
[INFO] [stdout] 135 |  |                 .as_str()?,
[INFO] [stdout] 136 |  |         ))
[INFO] [stdout] 137 |  |     }
[INFO] [stdout]     |  |_____- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `FromResidual<std::option::Option<!>>` is not implemented for `Result<Token<T>, Error>`
[INFO] [stdout]     = note: required by `from_residual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a method that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/mediawiki-rs-ccdb6ca811e3accb/54b4841/src/lib.rs:132:13
[INFO] [stdout]     |
[INFO] [stdout] 121 |  /     pub fn get_token<T>(&self) -> Result<Token<T>, Error>
[INFO] [stdout] 122 |  |     where
[INFO] [stdout] 123 |  |         T: TokenType,
[INFO] [stdout] 124 |  |     {
[INFO] [stdout] ...    |
[INFO] [stdout] 132 | /|             json.get("query")?
[INFO] [stdout] 133 | ||                 .get("tokens")?
[INFO] [stdout] 134 | ||                 .get(T::out_type())?
[INFO] [stdout] 135 | ||                 .as_str()?,
[INFO] [stdout]     | ||__________________________^ cannot use the `?` operator in a method that returns `Result<Token<T>, Error>`
[INFO] [stdout] 136 |  |         ))
[INFO] [stdout] 137 |  |     }
[INFO] [stdout]     |  |_____- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `FromResidual<std::option::Option<!>>` is not implemented for `Result<Token<T>, Error>`
[INFO] [stdout]     = note: required by `from_residual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a method that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/mediawiki-rs-ccdb6ca811e3accb/54b4841/src/lib.rs:163:22
[INFO] [stdout]     |
[INFO] [stdout] 156 | /     pub fn download_file(&self, name: &str) -> Result<Option<Vec<u8>>, Error> {
[INFO] [stdout] 157 | |         let mut request = self.request();
[INFO] [stdout] 158 | |         request.arg("action", "query");
[INFO] [stdout] 159 | |         request.arg("prop", "imageinfo");
[INFO] [stdout] ...   |
[INFO] [stdout] 163 | |         let images = json.get("query")?.get("pages")?;
[INFO] [stdout]     | |                      ^^^^^^^^^^^^^^^^^^ cannot use the `?` operator in a method that returns `Result<std::option::Option<Vec<u8>>, Error>`
[INFO] [stdout] ...   |
[INFO] [stdout] 181 | |         Ok(Some(buf))
[INFO] [stdout] 182 | |     }
[INFO] [stdout]     | |_____- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `FromResidual<std::option::Option<!>>` is not implemented for `Result<std::option::Option<Vec<u8>>, Error>`
[INFO] [stdout]     = note: required by `from_residual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a method that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/mediawiki-rs-ccdb6ca811e3accb/54b4841/src/lib.rs:163:22
[INFO] [stdout]     |
[INFO] [stdout] 156 | /     pub fn download_file(&self, name: &str) -> Result<Option<Vec<u8>>, Error> {
[INFO] [stdout] 157 | |         let mut request = self.request();
[INFO] [stdout] 158 | |         request.arg("action", "query");
[INFO] [stdout] 159 | |         request.arg("prop", "imageinfo");
[INFO] [stdout] ...   |
[INFO] [stdout] 163 | |         let images = json.get("query")?.get("pages")?;
[INFO] [stdout]     | |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot use the `?` operator in a method that returns `Result<std::option::Option<Vec<u8>>, Error>`
[INFO] [stdout] ...   |
[INFO] [stdout] 181 | |         Ok(Some(buf))
[INFO] [stdout] 182 | |     }
[INFO] [stdout]     | |_____- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `FromResidual<std::option::Option<!>>` is not implemented for `Result<std::option::Option<Vec<u8>>, Error>`
[INFO] [stdout]     = note: required by `from_residual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a method that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/mediawiki-rs-ccdb6ca811e3accb/54b4841/src/lib.rs:164:21
[INFO] [stdout]     |
[INFO] [stdout] 156 | /     pub fn download_file(&self, name: &str) -> Result<Option<Vec<u8>>, Error> {
[INFO] [stdout] 157 | |         let mut request = self.request();
[INFO] [stdout] 158 | |         request.arg("action", "query");
[INFO] [stdout] 159 | |         request.arg("prop", "imageinfo");
[INFO] [stdout] ...   |
[INFO] [stdout] 164 | |         let image = images.as_object()?.values().next()?;
[INFO] [stdout]     | |                     ^^^^^^^^^^^^^^^^^^^ cannot use the `?` operator in a method that returns `Result<std::option::Option<Vec<u8>>, Error>`
[INFO] [stdout] ...   |
[INFO] [stdout] 181 | |         Ok(Some(buf))
[INFO] [stdout] 182 | |     }
[INFO] [stdout]     | |_____- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `FromResidual<std::option::Option<!>>` is not implemented for `Result<std::option::Option<Vec<u8>>, Error>`
[INFO] [stdout]     = note: required by `from_residual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a method that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/mediawiki-rs-ccdb6ca811e3accb/54b4841/src/lib.rs:164:21
[INFO] [stdout]     |
[INFO] [stdout] 156 | /     pub fn download_file(&self, name: &str) -> Result<Option<Vec<u8>>, Error> {
[INFO] [stdout] 157 | |         let mut request = self.request();
[INFO] [stdout] 158 | |         request.arg("action", "query");
[INFO] [stdout] 159 | |         request.arg("prop", "imageinfo");
[INFO] [stdout] ...   |
[INFO] [stdout] 164 | |         let image = images.as_object()?.values().next()?;
[INFO] [stdout]     | |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot use the `?` operator in a method that returns `Result<std::option::Option<Vec<u8>>, Error>`
[INFO] [stdout] ...   |
[INFO] [stdout] 181 | |         Ok(Some(buf))
[INFO] [stdout] 182 | |     }
[INFO] [stdout]     | |_____- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `FromResidual<std::option::Option<!>>` is not implemented for `Result<std::option::Option<Vec<u8>>, Error>`
[INFO] [stdout]     = note: required by `from_residual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a method that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/mediawiki-rs-ccdb6ca811e3accb/54b4841/src/lib.rs:168:19
[INFO] [stdout]     |
[INFO] [stdout] 156 | /     pub fn download_file(&self, name: &str) -> Result<Option<Vec<u8>>, Error> {
[INFO] [stdout] 157 | |         let mut request = self.request();
[INFO] [stdout] 158 | |         request.arg("action", "query");
[INFO] [stdout] 159 | |         request.arg("prop", "imageinfo");
[INFO] [stdout] ...   |
[INFO] [stdout] 168 | |         let url = image.get("imageinfo")?.get(0)?.get("url")?.as_str()?;
[INFO] [stdout]     | |                   ^^^^^^^^^^^^^^^^^^^^^^^ cannot use the `?` operator in a method that returns `Result<std::option::Option<Vec<u8>>, Error>`
[INFO] [stdout] ...   |
[INFO] [stdout] 181 | |         Ok(Some(buf))
[INFO] [stdout] 182 | |     }
[INFO] [stdout]     | |_____- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `FromResidual<std::option::Option<!>>` is not implemented for `Result<std::option::Option<Vec<u8>>, Error>`
[INFO] [stdout]     = note: required by `from_residual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a method that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/mediawiki-rs-ccdb6ca811e3accb/54b4841/src/lib.rs:168:19
[INFO] [stdout]     |
[INFO] [stdout] 156 | /     pub fn download_file(&self, name: &str) -> Result<Option<Vec<u8>>, Error> {
[INFO] [stdout] 157 | |         let mut request = self.request();
[INFO] [stdout] 158 | |         request.arg("action", "query");
[INFO] [stdout] 159 | |         request.arg("prop", "imageinfo");
[INFO] [stdout] ...   |
[INFO] [stdout] 168 | |         let url = image.get("imageinfo")?.get(0)?.get("url")?.as_str()?;
[INFO] [stdout]     | |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot use the `?` operator in a method that returns `Result<std::option::Option<Vec<u8>>, Error>`
[INFO] [stdout] ...   |
[INFO] [stdout] 181 | |         Ok(Some(buf))
[INFO] [stdout] 182 | |     }
[INFO] [stdout]     | |_____- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `FromResidual<std::option::Option<!>>` is not implemented for `Result<std::option::Option<Vec<u8>>, Error>`
[INFO] [stdout]     = note: required by `from_residual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a method that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/mediawiki-rs-ccdb6ca811e3accb/54b4841/src/lib.rs:168:19
[INFO] [stdout]     |
[INFO] [stdout] 156 | /     pub fn download_file(&self, name: &str) -> Result<Option<Vec<u8>>, Error> {
[INFO] [stdout] 157 | |         let mut request = self.request();
[INFO] [stdout] 158 | |         request.arg("action", "query");
[INFO] [stdout] 159 | |         request.arg("prop", "imageinfo");
[INFO] [stdout] ...   |
[INFO] [stdout] 168 | |         let url = image.get("imageinfo")?.get(0)?.get("url")?.as_str()?;
[INFO] [stdout]     | |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot use the `?` operator in a method that returns `Result<std::option::Option<Vec<u8>>, Error>`
[INFO] [stdout] ...   |
[INFO] [stdout] 181 | |         Ok(Some(buf))
[INFO] [stdout] 182 | |     }
[INFO] [stdout]     | |_____- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `FromResidual<std::option::Option<!>>` is not implemented for `Result<std::option::Option<Vec<u8>>, Error>`
[INFO] [stdout]     = note: required by `from_residual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a method that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/mediawiki-rs-ccdb6ca811e3accb/54b4841/src/lib.rs:168:19
[INFO] [stdout]     |
[INFO] [stdout] 156 | /     pub fn download_file(&self, name: &str) -> Result<Option<Vec<u8>>, Error> {
[INFO] [stdout] 157 | |         let mut request = self.request();
[INFO] [stdout] 158 | |         request.arg("action", "query");
[INFO] [stdout] 159 | |         request.arg("prop", "imageinfo");
[INFO] [stdout] ...   |
[INFO] [stdout] 168 | |         let url = image.get("imageinfo")?.get(0)?.get("url")?.as_str()?;
[INFO] [stdout]     | |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot use the `?` operator in a method that returns `Result<std::option::Option<Vec<u8>>, Error>`
[INFO] [stdout] ...   |
[INFO] [stdout] 181 | |         Ok(Some(buf))
[INFO] [stdout] 182 | |     }
[INFO] [stdout]     | |_____- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `FromResidual<std::option::Option<!>>` is not implemented for `Result<std::option::Option<Vec<u8>>, Error>`
[INFO] [stdout]     = note: required by `from_residual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a method that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/mediawiki-rs-ccdb6ca811e3accb/54b4841/src/lib.rs:341:19
[INFO] [stdout]     |
[INFO] [stdout] 339 | /     fn fill(&mut self) -> Result<bool, Error> {
[INFO] [stdout] 340 | |         let json = self.req.get()?;
[INFO] [stdout] 341 | |         let buf = json.get("query")?.get(&self.list)?;
[INFO] [stdout]     | |                   ^^^^^^^^^^^^^^^^^^ cannot use the `?` operator in a method that returns `Result<bool, Error>`
[INFO] [stdout] 342 | |         self.buf.clone_from(buf.as_array()?);
[INFO] [stdout] ...   |
[INFO] [stdout] 351 | |         }
[INFO] [stdout] 352 | |     }
[INFO] [stdout]     | |_____- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `FromResidual<std::option::Option<!>>` is not implemented for `Result<bool, Error>`
[INFO] [stdout]     = note: required by `from_residual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a method that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/mediawiki-rs-ccdb6ca811e3accb/54b4841/src/lib.rs:341:19
[INFO] [stdout]     |
[INFO] [stdout] 339 | /     fn fill(&mut self) -> Result<bool, Error> {
[INFO] [stdout] 340 | |         let json = self.req.get()?;
[INFO] [stdout] 341 | |         let buf = json.get("query")?.get(&self.list)?;
[INFO] [stdout]     | |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot use the `?` operator in a method that returns `Result<bool, Error>`
[INFO] [stdout] 342 | |         self.buf.clone_from(buf.as_array()?);
[INFO] [stdout] ...   |
[INFO] [stdout] 351 | |         }
[INFO] [stdout] 352 | |     }
[INFO] [stdout]     | |_____- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `FromResidual<std::option::Option<!>>` is not implemented for `Result<bool, Error>`
[INFO] [stdout]     = note: required by `from_residual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a method that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/mediawiki-rs-ccdb6ca811e3accb/54b4841/src/lib.rs:342:29
[INFO] [stdout]     |
[INFO] [stdout] 339 | /     fn fill(&mut self) -> Result<bool, Error> {
[INFO] [stdout] 340 | |         let json = self.req.get()?;
[INFO] [stdout] 341 | |         let buf = json.get("query")?.get(&self.list)?;
[INFO] [stdout] 342 | |         self.buf.clone_from(buf.as_array()?);
[INFO] [stdout]     | |                             ^^^^^^^^^^^^^^^ cannot use the `?` operator in a method that returns `Result<bool, Error>`
[INFO] [stdout] ...   |
[INFO] [stdout] 351 | |         }
[INFO] [stdout] 352 | |     }
[INFO] [stdout]     | |_____- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `FromResidual<std::option::Option<!>>` is not implemented for `Result<bool, Error>`
[INFO] [stdout]     = note: required by `from_residual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a method that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/mediawiki-rs-ccdb6ca811e3accb/54b4841/src/lib.rs:345:31
[INFO] [stdout]     |
[INFO] [stdout] 339 | /     fn fill(&mut self) -> Result<bool, Error> {
[INFO] [stdout] 340 | |         let json = self.req.get()?;
[INFO] [stdout] 341 | |         let buf = json.get("query")?.get(&self.list)?;
[INFO] [stdout] 342 | |         self.buf.clone_from(buf.as_array()?);
[INFO] [stdout] ...   |
[INFO] [stdout] 345 | |             for (key, val) in cont.as_object()? {
[INFO] [stdout]     | |                               ^^^^^^^^^^^^^^^^^ cannot use the `?` operator in a method that returns `Result<bool, Error>`
[INFO] [stdout] ...   |
[INFO] [stdout] 351 | |         }
[INFO] [stdout] 352 | |     }
[INFO] [stdout]     | |_____- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `FromResidual<std::option::Option<!>>` is not implemented for `Result<bool, Error>`
[INFO] [stdout]     = note: required by `from_residual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a method that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/mediawiki-rs-ccdb6ca811e3accb/54b4841/src/lib.rs:346:38
[INFO] [stdout]     |
[INFO] [stdout] 339 | /     fn fill(&mut self) -> Result<bool, Error> {
[INFO] [stdout] 340 | |         let json = self.req.get()?;
[INFO] [stdout] 341 | |         let buf = json.get("query")?.get(&self.list)?;
[INFO] [stdout] 342 | |         self.buf.clone_from(buf.as_array()?);
[INFO] [stdout] ...   |
[INFO] [stdout] 346 | |                 self.req.arg(&**key, val.as_str()?);
[INFO] [stdout]     | |                                      ^^^^^^^^^^^^^ cannot use the `?` operator in a method that returns `Result<bool, Error>`
[INFO] [stdout] ...   |
[INFO] [stdout] 351 | |         }
[INFO] [stdout] 352 | |     }
[INFO] [stdout]     | |_____- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `FromResidual<std::option::Option<!>>` is not implemented for `Result<bool, Error>`
[INFO] [stdout]     = note: required by `from_residual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 20 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mediawiki`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "57f0daebe8f15a6f173ee363d11d176e7b5c5bccaa10025d2b97597c803988f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57f0daebe8f15a6f173ee363d11d176e7b5c5bccaa10025d2b97597c803988f1", kill_on_drop: false }`
[INFO] [stdout] 57f0daebe8f15a6f173ee363d11d176e7b5c5bccaa10025d2b97597c803988f1