[INFO] cloning repository https://github.com/loalang/loalang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/loalang/loalang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Floalang%2Floalang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Floalang%2Floalang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 745edc192564b3f362ad1623fbb8853fcefa876e
[INFO] checking loalang/loalang against 4a9d5368df6450bbd2fc8dde4508c3e5d83bb19d for pr-159598
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Floalang%2Floalang" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/loalang/loalang
[INFO] finished tweaking git repo https://github.com/loalang/loalang
[INFO] tweaked toml for git repo https://github.com/loalang/loalang written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/loalang/loalang on toolchain 4a9d5368df6450bbd2fc8dde4508c3e5d83bb19d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4a9d5368df6450bbd2fc8dde4508c3e5d83bb19d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/loalang/loalang 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" "+4a9d5368df6450bbd2fc8dde4508c3e5d83bb19d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: Cargo.toml: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] [stderr] warning: `loalang` (manifest) generated 1 warning
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:00c5645b54fe3ce5dae1417175e3c7fb6a6646c021d554ecd63a097b8b9f3602" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 1f79a117225952d9a89c2a108070e3aae2a1d0a9b389afa9b0d580e82dbf5871
[INFO] running `Command { std: "docker" "start" "1f79a117225952d9a89c2a108070e3aae2a1d0a9b389afa9b0d580e82dbf5871", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1f79a117225952d9a89c2a108070e3aae2a1d0a9b389afa9b0d580e82dbf5871", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "1f79a117225952d9a89c2a108070e3aae2a1d0a9b389afa9b0d580e82dbf5871" "/opt/rustwide/cargo-home/bin/cargo" "+4a9d5368df6450bbd2fc8dde4508c3e5d83bb19d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1f79a117225952d9a89c2a108070e3aae2a1d0a9b389afa9b0d580e82dbf5871", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "1f79a117225952d9a89c2a108070e3aae2a1d0a9b389afa9b0d580e82dbf5871" "/opt/rustwide/cargo-home/bin/cargo" "+4a9d5368df6450bbd2fc8dde4508c3e5d83bb19d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: Cargo.toml: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] [stderr] warning: `loalang` (manifest) generated 1 warning
[INFO] [stderr]    Compiling autocfg v0.1.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.5
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]    Compiling num-bigint v0.2.2
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling unicode-segmentation v1.5.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]     Checking ngrammatic v0.3.1
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking strum v0.17.1
[INFO] [stderr]     Checking peekmore v0.4.0
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling bincode v1.2.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]    Compiling strum_macros v0.17.1
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]     Checking fraction v0.6.2
[INFO] [stderr]     Checking loalang v0.1.20 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0463]: can't find crate for `serde_yaml`
[INFO] [stdout]  --> src/lib/fixture_tests.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | extern crate serde_yaml;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `simple_logging`
[INFO] [stdout]  --> src/lib/fixture_tests.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | extern crate simple_logging;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::option::NoneError`
[INFO] [stdout]  --> src/lib/generation/generation_error.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::option::NoneError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^---------
[INFO] [stdout]   |                  |
[INFO] [stdout]   |                  no `NoneError` in `option`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0437]: type `Ok` is not a member of trait `std::ops::Try`
[INFO] [stdout]    --> src/lib/semantics/types.rs:816:5
[INFO] [stdout]     |
[INFO] [stdout] 816 |     type Ok = Type;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^ not a member of trait `std::ops::Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0437]: type `Error` is not a member of trait `std::ops::Try`
[INFO] [stdout]    --> src/lib/semantics/types.rs:817:5
[INFO] [stdout]     |
[INFO] [stdout] 817 |     type Error = std::option::NoneError;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ not a member of trait `std::ops::Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0407]: method `into_result` is not a member of trait `std::ops::Try`
[INFO] [stdout]    --> src/lib/semantics/types.rs:819:5
[INFO] [stdout]     |
[INFO] [stdout] 819 | /     fn into_result(self) -> Result<Self::Ok, Self::Error> {
[INFO] [stdout] 820 | |         Ok(self)
[INFO] [stdout] 821 | |     }
[INFO] [stdout]     | |_____^ not a member of trait `std::ops::Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0407]: method `from_error` is not a member of trait `std::ops::Try`
[INFO] [stdout]    --> src/lib/semantics/types.rs:823:5
[INFO] [stdout]     |
[INFO] [stdout] 823 | /     fn from_error(_v: Self::Error) -> Self {
[INFO] [stdout] 824 | |         Type::Unknown
[INFO] [stdout] 825 | |     }
[INFO] [stdout]     | |_____^ not a member of trait `std::ops::Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0407]: method `from_ok` is not a member of trait `std::ops::Try`
[INFO] [stdout]    --> src/lib/semantics/types.rs:827:5
[INFO] [stdout]     |
[INFO] [stdout] 827 | /     fn from_ok(v: Self::Ok) -> Self {
[INFO] [stdout] 828 | |         v
[INFO] [stdout] 829 | |     }
[INFO] [stdout]     | |_____^ not a member of trait `std::ops::Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0437]: type `Ok` is not a member of trait `std::ops::Try`
[INFO] [stdout]   --> src/lib/semantics/type_assignability.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 52 |     type Ok = TypeAssignability;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ not a member of trait `std::ops::Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0437]: type `Error` is not a member of trait `std::ops::Try`
[INFO] [stdout]   --> src/lib/semantics/type_assignability.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 53 |     type Error = std::option::NoneError;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ not a member of trait `std::ops::Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0407]: method `into_result` is not a member of trait `std::ops::Try`
[INFO] [stdout]   --> src/lib/semantics/type_assignability.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 55 | /     fn into_result(self) -> Result<Self::Ok, Self::Error> {
[INFO] [stdout] 56 | |         Ok(self)
[INFO] [stdout] 57 | |     }
[INFO] [stdout]    | |_____^ not a member of trait `std::ops::Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0407]: method `from_error` is not a member of trait `std::ops::Try`
[INFO] [stdout]   --> src/lib/semantics/type_assignability.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 59 | /     fn from_error(_v: Self::Error) -> Self {
[INFO] [stdout] ...  |
[INFO] [stdout] 65 | |         TypeAssignability::Valid
[INFO] [stdout] 66 | |     }
[INFO] [stdout]    | |_____^ not a member of trait `std::ops::Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0407]: method `from_ok` is not a member of trait `std::ops::Try`
[INFO] [stdout]   --> src/lib/semantics/type_assignability.rs:68:5
[INFO] [stdout]    |
[INFO] [stdout] 68 | /     fn from_ok(v: Self::Ok) -> Self {
[INFO] [stdout] 69 | |         v
[INFO] [stdout] 70 | |     }
[INFO] [stdout]    | |_____^ not a member of trait `std::ops::Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `loalang` (lib test) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0425]: cannot find type `NoneError` in module `std::option`
[INFO] [stdout]    --> src/lib/semantics/types.rs:817:31
[INFO] [stdout]     |
[INFO] [stdout] 817 |     type Error = std::option::NoneError;
[INFO] [stdout]     |                               ^^^^^^^^^ not found in `std::option`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `NoneError` in module `std::option`
[INFO] [stdout]   --> src/lib/semantics/type_assignability.rs:53:31
[INFO] [stdout]    |
[INFO] [stdout] 53 |     type Error = std::option::NoneError;
[INFO] [stdout]    |                               ^^^^^^^^^ not found in `std::option`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `cargo-clippy`
[INFO] [stdout]  --> src/lib/id.rs:5:61
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[derive(Eq, PartialEq, Copy, Clone, Hash, PartialOrd, Ord, Serialize, Deserialize)]
[INFO] [stdout]   |                                                             ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: expected values for `feature` are: `build-bin-loa`, `build-bin-vm`, `clap`, `colored`, `dirs`, `graphql_client`, `http`, `hyper`, `hyper-staticfile`, `ignore`, `jsonrpc-stdio-server`, `log-panics`, `lsp-server`, `lsp-types`, `reqwest`, `rpassword`, `rust-crypto`, `rustyline`, `serde_json`, `serde_yaml`, `simple-logging`, `tar`, `tee`, and `test-library`
[INFO] [stdout]   = note: using a cfg inside a derive macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stdout]   = help: try referring to `Serialize` crate for guidance on how handle this unexpected cfg
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]   = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout]   = note: this warning originates in the derive macro `Serialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `cargo-clippy`
[INFO] [stdout]  --> src/lib/id.rs:5:72
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[derive(Eq, PartialEq, Copy, Clone, Hash, PartialOrd, Ord, Serialize, Deserialize)]
[INFO] [stdout]   |                                                                        ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: expected values for `feature` are: `build-bin-loa`, `build-bin-vm`, `clap`, `colored`, `dirs`, `graphql_client`, `http`, `hyper`, `hyper-staticfile`, `ignore`, `jsonrpc-stdio-server`, `log-panics`, `lsp-server`, `lsp-types`, `reqwest`, `rpassword`, `rust-crypto`, `rustyline`, `serde_json`, `serde_yaml`, `simple-logging`, `tar`, `tee`, and `test-library`
[INFO] [stdout]   = note: using a cfg inside a derive macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stdout]   = help: try referring to `Deserialize` crate for guidance on how handle this unexpected cfg
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]   = note: this warning originates in the derive macro `Deserialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: feature `try_trait` has been renamed to `try_trait_v2`
[INFO] [stdout]  --> src/lib/mod.rs:1:26
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(box_patterns, try_trait)]
[INFO] [stdout]   |                          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature `try_trait_v2`
[INFO] [stdout]    --> src/lib/semantics/types.rs:815:6
[INFO] [stdout]     |
[INFO] [stdout] 815 | impl std::ops::Try for Type {
[INFO] [stdout]     |      ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #84277 <https://github.com/rust-lang/rust/issues/84277> for more information
[INFO] [stdout]     = help: add `#![feature(try_trait_v2)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-07-17; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature `try_trait_v2`
[INFO] [stdout]   --> src/lib/semantics/type_assignability.rs:51:6
[INFO] [stdout]    |
[INFO] [stdout] 51 | impl std::ops::Try for TypeAssignability {
[INFO] [stdout]    |      ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #84277 <https://github.com/rust-lang/rust/issues/84277> for more information
[INFO] [stdout]    = help: add `#![feature(try_trait_v2)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2026-07-17; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0046]: not all trait items implemented, missing: `Output`, `Residual`, `from_output`, `branch`
[INFO] [stdout]    --> src/lib/semantics/types.rs:815:1
[INFO] [stdout]     |
[INFO] [stdout] 815 | impl std::ops::Try for Type {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ missing `Output`, `Residual`, `from_output`, `branch` in implementation
[INFO] [stdout]     |
[INFO] [stdout]     = help: implement the missing item: `type Output = /* Type */;`
[INFO] [stdout]     = help: implement the missing item: `type Residual = /* Type */;`
[INFO] [stdout]     = help: implement the missing item: `fn from_output(_: <Self as Try>::Output) -> Self { todo!() }`
[INFO] [stdout]     = help: implement the missing item: `fn branch(self) -> ControlFlow<<Self as Try>::Residual, <Self as Try>::Output> { todo!() }`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0046]: not all trait items implemented, missing: `Output`, `Residual`, `from_output`, `branch`
[INFO] [stdout]   --> src/lib/semantics/type_assignability.rs:51:1
[INFO] [stdout]    |
[INFO] [stdout] 51 | impl std::ops::Try for TypeAssignability {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ missing `Output`, `Residual`, `from_output`, `branch` in implementation
[INFO] [stdout]    |
[INFO] [stdout]    = help: implement the missing item: `type Output = /* Type */;`
[INFO] [stdout]    = help: implement the missing item: `type Residual = /* Type */;`
[INFO] [stdout]    = help: implement the missing item: `fn from_output(_: <Self as Try>::Output) -> Self { todo!() }`
[INFO] [stdout]    = help: implement the missing item: `fn branch(self) -> ControlFlow<<Self as Try>::Residual, <Self as Try>::Output> { todo!() }`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0220]: associated type `Ok` not found for `Self`
[INFO] [stdout]    --> src/lib/semantics/types.rs:819:42
[INFO] [stdout]     |
[INFO] [stdout] 819 |     fn into_result(self) -> Result<Self::Ok, Self::Error> {
[INFO] [stdout]     |                                          ^^ associated type `Ok` not found
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0220]: associated type `Error` not found for `Self`
[INFO] [stdout]    --> src/lib/semantics/types.rs:819:52
[INFO] [stdout]     |
[INFO] [stdout] 819 |     fn into_result(self) -> Result<Self::Ok, Self::Error> {
[INFO] [stdout]     |                                                    ^^^^^ associated type `Error` not found
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0220]: associated type `Error` not found for `Self`
[INFO] [stdout]    --> src/lib/semantics/types.rs:823:29
[INFO] [stdout]     |
[INFO] [stdout] 823 |     fn from_error(_v: Self::Error) -> Self {
[INFO] [stdout]     |                             ^^^^^ associated type `Error` not found
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0220]: associated type `Ok` not found for `Self`
[INFO] [stdout]    --> src/lib/semantics/types.rs:827:25
[INFO] [stdout]     |
[INFO] [stdout] 827 |     fn from_ok(v: Self::Ok) -> Self {
[INFO] [stdout]     |                         ^^ associated type `Ok` not found
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0220]: associated type `Ok` not found for `Self`
[INFO] [stdout]   --> src/lib/semantics/type_assignability.rs:55:42
[INFO] [stdout]    |
[INFO] [stdout] 55 |     fn into_result(self) -> Result<Self::Ok, Self::Error> {
[INFO] [stdout]    |                                          ^^ associated type `Ok` not found
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0220]: associated type `Error` not found for `Self`
[INFO] [stdout]   --> src/lib/semantics/type_assignability.rs:55:52
[INFO] [stdout]    |
[INFO] [stdout] 55 |     fn into_result(self) -> Result<Self::Ok, Self::Error> {
[INFO] [stdout]    |                                                    ^^^^^ associated type `Error` not found
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0220]: associated type `Error` not found for `Self`
[INFO] [stdout]   --> src/lib/semantics/type_assignability.rs:59:29
[INFO] [stdout]    |
[INFO] [stdout] 59 |     fn from_error(_v: Self::Error) -> Self {
[INFO] [stdout]    |                             ^^^^^ associated type `Error` not found
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0220]: associated type `Ok` not found for `Self`
[INFO] [stdout]   --> src/lib/semantics/type_assignability.rs:68:25
[INFO] [stdout]    |
[INFO] [stdout] 68 |     fn from_ok(v: Self::Ok) -> Self {
[INFO] [stdout]    |                         ^^ associated type `Ok` not found
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a closure that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/lib/semantics/types.rs:48:78
[INFO] [stdout]    |
[INFO] [stdout] 44 |             .gate(&expression.id, || match expression.kind {
[INFO] [stdout]    |                                   -- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 48 |                         .find_declaration(expression, DeclarationKind::Value)?,
[INFO] [stdout]    |                                                                              ^ cannot use the `?` operator in a closure that returns `types::Type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a closure that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/lib/semantics/types.rs:52:78
[INFO] [stdout]    |
[INFO] [stdout] 44 |             .gate(&expression.id, || match expression.kind {
[INFO] [stdout]    |                                   -- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 52 |                     let expression = self.navigator.find_child(expression, e)?;
[INFO] [stdout]    |                                                                              ^ cannot use the `?` operator in a closure that returns `types::Type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a closure that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/lib/semantics/types.rs:57:78
[INFO] [stdout]    |
[INFO] [stdout] 44 |             .gate(&expression.id, || match expression.kind {
[INFO] [stdout]    |                                   -- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 57 |                     let expression = self.navigator.find_child(expression, e)?;
[INFO] [stdout]    |                                                                              ^ cannot use the `?` operator in a closure that returns `types::Type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a closure that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/lib/semantics/types.rs:65:82
[INFO] [stdout]    |
[INFO] [stdout] 44 |             .gate(&expression.id, || match expression.kind {
[INFO] [stdout]    |                                   -- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 65 |                             .find_declaration(expression, DeclarationKind::Value)?,
[INFO] [stdout]    |                                                                                  ^ cannot use the `?` operator in a closure that returns `types::Type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a closure that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/lib/semantics/types.rs:70:97
[INFO] [stdout]    |
[INFO] [stdout] 44 |             .gate(&expression.id, || match expression.kind {
[INFO] [stdout]    |                                   -- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 70 |                     self.get_type_of_declaration(&self.navigator.find_stdlib_class("Loa/String")?)
[INFO] [stdout]    |                                                                                                 ^ cannot use the `?` operator in a closure that returns `types::Type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a closure that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/lib/semantics/types.rs:74:96
[INFO] [stdout]    |
[INFO] [stdout] 44 |             .gate(&expression.id, || match expression.kind {
[INFO] [stdout]    |                                   -- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 74 |                     .get_type_of_declaration(&self.navigator.find_stdlib_class("Loa/Character")?),
[INFO] [stdout]    |                                                                                                ^ cannot use the `?` operator in a closure that returns `types::Type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a closure that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/lib/semantics/types.rs:82:74
[INFO] [stdout]    |
[INFO] [stdout] 44 |             .gate(&expression.id, || match expression.kind {
[INFO] [stdout]    |                                   -- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 82 |                     let expression = self.navigator.find_node(expression)?;
[INFO] [stdout]    |                                                                          ^ cannot use the `?` operator in a closure that returns `types::Type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a closure that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/lib/semantics/types.rs:90:72
[INFO] [stdout]    |
[INFO] [stdout] 44 |             .gate(&expression.id, || match expression.kind {
[INFO] [stdout]    |                                   -- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 90 |                     let receiver = self.navigator.find_node(expression)?;
[INFO] [stdout]    |                                                                        ^ cannot use the `?` operator in a closure that returns `types::Type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a closure that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/lib/semantics/types.rs:91:68
[INFO] [stdout]    |
[INFO] [stdout] 44 |             .gate(&expression.id, || match expression.kind {
[INFO] [stdout]    |                                   -- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 91 |                     let message = self.navigator.find_node(message)?;
[INFO] [stdout]    |                                                                    ^ cannot use the `?` operator in a closure that returns `types::Type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a closure that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/lib/semantics/types.rs:93:77
[INFO] [stdout]    |
[INFO] [stdout] 44 |             .gate(&expression.id, || match expression.kind {
[INFO] [stdout]    |                                   -- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 93 |                     let selector = self.navigator.message_selector(&message)?;
[INFO] [stdout]    |                                                                             ^ cannot use the `?` operator in a closure that returns `types::Type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a closure that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> src/lib/semantics/types.rs:122:74
[INFO] [stdout]     |
[INFO] [stdout] 121 |                     .map(|pid| {
[INFO] [stdout]     |                          ----- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] 122 |                         let param = self.navigator.find_child(list, *pid)?;
[INFO] [stdout]     |                                                                          ^ cannot use the `?` operator in a closure that returns `types::Type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a closure that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> src/lib/semantics/types.rs:146:97
[INFO] [stdout]     |
[INFO] [stdout] 143 |             .gate(&declaration.id, || match declaration.kind {
[INFO] [stdout]     |                                    -- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 146 |                 } => self.get_type_of_type_expression(&self.navigator.find_node(type_expression)?),
[INFO] [stdout]     |                                                                                                 ^ cannot use the `?` operator in a closure that returns `types::Type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a closure that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> src/lib/semantics/types.rs:151:74
[INFO] [stdout]     |
[INFO] [stdout] 143 |             .gate(&declaration.id, || match declaration.kind {
[INFO] [stdout]     |                                    -- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 151 |                     let (name, _) = self.navigator.symbol_of(declaration)?;
[INFO] [stdout]     |                                                                          ^ cannot use the `?` operator in a closure that returns `types::Type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a closure that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> src/lib/semantics/types.rs:162:74
[INFO] [stdout]     |
[INFO] [stdout] 143 |             .gate(&declaration.id, || match declaration.kind {
[INFO] [stdout]     |                                    -- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 162 |                     let (name, _) = self.navigator.symbol_of(declaration)?;
[INFO] [stdout]     |                                                                          ^ cannot use the `?` operator in a closure that returns `types::Type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a closure that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> src/lib/semantics/types.rs:171:92
[INFO] [stdout]     |
[INFO] [stdout] 143 |             .gate(&declaration.id, || match declaration.kind {
[INFO] [stdout]     |                                    -- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 171 |                         let expression = self.navigator.find_child(declaration, expression)?;
[INFO] [stdout]     |                                                                                            ^ cannot use the `?` operator in a closure that returns `types::Type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a closure that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> src/lib/semantics/types.rs:175:84
[INFO] [stdout]     |
[INFO] [stdout] 143 |             .gate(&declaration.id, || match declaration.kind {
[INFO] [stdout]     |                                    -- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 175 |                             self.navigator.find_child(declaration, type_expression)?;
[INFO] [stdout]     |                                                                                    ^ cannot use the `?` operator in a closure that returns `types::Type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a closure that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> src/lib/semantics/types.rs:214:86
[INFO] [stdout]     |
[INFO] [stdout] 185 |             .gate(&type_expression.id, || match type_expression.kind {
[INFO] [stdout]     |                                        -- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 214 |                             .find_declaration(type_expression, DeclarationKind::Type)?,
[INFO] [stdout]     |                                                                                      ^ cannot use the `?` operator in a closure that returns `types::Type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a closure that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> src/lib/semantics/types.rs:223:86
[INFO] [stdout]     |
[INFO] [stdout] 185 |             .gate(&type_expression.id, || match type_expression.kind {
[INFO] [stdout]     |                                        -- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 223 |                             .find_declaration(type_expression, DeclarationKind::Type)?,
[INFO] [stdout]     |                                                                                      ^ cannot use the `?` operator in a closure that returns `types::Type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a closure that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> src/lib/semantics/types.rs:237:86
[INFO] [stdout]     |
[INFO] [stdout] 235 |             .gate(&method_body.id, || match method_body.kind {
[INFO] [stdout]     |                                    -- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] 236 |                 MethodBody { expression, .. } => {
[INFO] [stdout] 237 |                     self.get_type_of_expression(&self.navigator.find_node(expression)?)
[INFO] [stdout]     |                                                                                      ^ cannot use the `?` operator in a closure that returns `types::Type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a closure that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> src/lib/semantics/types.rs:248:97
[INFO] [stdout]     |
[INFO] [stdout] 245 |             .gate(&return_type.id, || match return_type.kind {
[INFO] [stdout]     |                                    -- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 248 |                 } => self.get_type_of_type_expression(&self.navigator.find_node(type_expression)?),
[INFO] [stdout]     |                                                                                                 ^ cannot use the `?` operator in a closure that returns `types::Type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a closure that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> src/lib/semantics/types.rs:258:97
[INFO] [stdout]     |
[INFO] [stdout] 255 |             .gate(&parameter_pattern.id, || match parameter_pattern.kind {
[INFO] [stdout]     |                                          -- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 258 |                 } => self.get_type_of_type_expression(&self.navigator.find_node(type_expression)?),
[INFO] [stdout]     |                                                                                                 ^ cannot use the `?` operator in a closure that returns `types::Type`
[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]    --> src/lib/semantics/types.rs:568:81
[INFO] [stdout]     |
[INFO] [stdout] 560 |     pub fn get_type_of_variable(&self, variable: &Node) -> Type {
[INFO] [stdout]     |     ----------------------------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 568 |                 let expression = self.navigator.find_child(variable, expression)?;
[INFO] [stdout]     |                                                                                 ^ cannot use the `?` operator in a method that returns `types::Type`
[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]    --> src/lib/semantics/types.rs:571:91
[INFO] [stdout]     |
[INFO] [stdout] 560 |     pub fn get_type_of_variable(&self, variable: &Node) -> Type {
[INFO] [stdout]     |     ----------------------------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 571 |                 let type_expression = self.navigator.find_child(variable, type_expression)?;
[INFO] [stdout]     |                                                                                           ^ cannot use the `?` operator in a method that returns `types::Type`
[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/semantics/type_assignability.rs:342:70
[INFO] [stdout]     |
[INFO] [stdout] 233 | / pub fn check_assignment(
[INFO] [stdout] 234 | |     assignee: Type,
[INFO] [stdout] 235 | |     assigned: Type,
[INFO] [stdout] 236 | |     navigator: &Navigator,
[INFO] [stdout] 237 | |     types: &Types,
[INFO] [stdout] 238 | |     invariant: bool,
[INFO] [stdout] 239 | | ) -> TypeAssignability {
[INFO] [stdout]     | |______________________- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 342 |               let assignee_class = navigator.find_node(*assignee_class)?;
[INFO] [stdout]     |                                                                        ^ cannot use the `?` operator in a function that returns `type_assignability::TypeAssignability`
[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/semantics/type_assignability.rs:343:70
[INFO] [stdout]     |
[INFO] [stdout] 233 | / pub fn check_assignment(
[INFO] [stdout] 234 | |     assignee: Type,
[INFO] [stdout] 235 | |     assigned: Type,
[INFO] [stdout] 236 | |     navigator: &Navigator,
[INFO] [stdout] 237 | |     types: &Types,
[INFO] [stdout] 238 | |     invariant: bool,
[INFO] [stdout] 239 | | ) -> TypeAssignability {
[INFO] [stdout]     | |______________________- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 343 |               let assigned_class = navigator.find_node(*assigned_class)?;
[INFO] [stdout]     |                                                                        ^ cannot use the `?` operator in a function that returns `type_assignability::TypeAssignability`
[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/semantics/type_assignability.rs:371:79
[INFO] [stdout]     |
[INFO] [stdout] 233 | / pub fn check_assignment(
[INFO] [stdout] 234 | |     assignee: Type,
[INFO] [stdout] 235 | |     assigned: Type,
[INFO] [stdout] 236 | |     navigator: &Navigator,
[INFO] [stdout] 237 | |     types: &Types,
[INFO] [stdout] 238 | |     invariant: bool,
[INFO] [stdout] 239 | | ) -> TypeAssignability {
[INFO] [stdout]     | |______________________- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 371 |                       navigator.find_child(&assignee_class, type_parameter_list)?;
[INFO] [stdout]     |                                                                                 ^ cannot use the `?` operator in a function that returns `type_assignability::TypeAssignability`
[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/semantics/type_assignability.rs:392:95
[INFO] [stdout]     |
[INFO] [stdout] 233 | / pub fn check_assignment(
[INFO] [stdout] 234 | |     assignee: Type,
[INFO] [stdout] 235 | |     assigned: Type,
[INFO] [stdout] 236 | |     navigator: &Navigator,
[INFO] [stdout] 237 | |     types: &Types,
[INFO] [stdout] 238 | |     invariant: bool,
[INFO] [stdout] 239 | | ) -> TypeAssignability {
[INFO] [stdout]     | |______________________- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 392 |                           let parameter = navigator.find_child(&type_parameter_list, *parameter)?;
[INFO] [stdout]     |                                                                                                 ^ cannot use the `?` operator in a function that returns `type_assignability::TypeAssignability`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/lib/generation/generator.rs:166:56
[INFO] [stdout]     |
[INFO] [stdout] 160 | /     fn generate_source<D: REPLDirectives>(
[INFO] [stdout] 161 | |         &mut self,
[INFO] [stdout] 162 | |         directives: D,
[INFO] [stdout] 163 | |         assembly: &mut Assembly,
[INFO] [stdout] 164 | |         uri: &URI,
[INFO] [stdout] 165 | |     ) -> GenerationResult<()> {
[INFO] [stdout]     | |_____________________________- this function returns a `Result`
[INFO] [stdout] 166 |           let root = self.analysis.navigator.root_of(uri)?;
[INFO] [stdout]     |                                                          ^ use `.ok_or(...)?` to provide an error compatible with `Result<(), generation_error::GenerationError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/lib/generation/generator.rs:215:71
[INFO] [stdout]     |
[INFO] [stdout] 208 | /     fn declare_global_let_binding(
[INFO] [stdout] 209 | |         &mut self,
[INFO] [stdout] 210 | |         assembly: &mut Assembly,
[INFO] [stdout] 211 | |         binding: &Node,
[INFO] [stdout] 212 | |     ) -> GenerationResult<()> {
[INFO] [stdout]     | |_____________________________- this function returns a `Result`
[INFO] [stdout] ...
[INFO] [stdout] 215 |                   let label = self.analysis.navigator.symbol_of(binding)?.0;
[INFO] [stdout]     |                                                                         ^ use `.ok_or(...)?` to provide an error compatible with `Result<(), generation_error::GenerationError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/lib/generation/generator.rs:217:89
[INFO] [stdout]     |
[INFO] [stdout] 208 | /     fn declare_global_let_binding(
[INFO] [stdout] 209 | |         &mut self,
[INFO] [stdout] 210 | |         assembly: &mut Assembly,
[INFO] [stdout] 211 | |         binding: &Node,
[INFO] [stdout] 212 | |     ) -> GenerationResult<()> {
[INFO] [stdout]     | |_____________________________- this function returns a `Result`
[INFO] [stdout] ...
[INFO] [stdout] 217 |                   let expression = self.analysis.navigator.find_child(binding, expression)?;
[INFO] [stdout]     |                                                                                           ^ use `.ok_or(...)?` to provide an error compatible with `Result<(), generation_error::GenerationError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/lib/generation/generator.rs:235:89
[INFO] [stdout]     |
[INFO] [stdout] 227 | /     fn declare_let_binding(
[INFO] [stdout] 228 | |         &mut self,
[INFO] [stdout] 229 | |         assembly: &mut Assembly,
[INFO] [stdout] 230 | |         section: &mut Section,
[INFO] [stdout] 231 | |         binding: &Node,
[INFO] [stdout] 232 | |     ) -> GenerationResult<()> {
[INFO] [stdout]     | |_____________________________- this function returns a `Result`
[INFO] [stdout] ...
[INFO] [stdout] 235 |                   let expression = self.analysis.navigator.find_child(binding, expression)?;
[INFO] [stdout]     |                                                                                           ^ use `.ok_or(...)?` to provide an error compatible with `Result<(), generation_error::GenerationError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/lib/generation/generator.rs:298:52
[INFO] [stdout]     |
[INFO] [stdout] 244 | /     fn declare_class_object(
[INFO] [stdout] 245 | |         &mut self,
[INFO] [stdout] 246 | |         name: &str,
[INFO] [stdout] 247 | |         assembly: &mut Assembly,
[INFO] [stdout] 248 | |         class: &Node,
[INFO] [stdout] 249 | |     ) -> GenerationResult<()> {
[INFO] [stdout]     | |_____________________________- this function returns a `Result`
[INFO] [stdout] ...
[INFO] [stdout] 298 |                       let variable = variables.get(v)?;
[INFO] [stdout]     |                                                      ^ use `.ok_or(...)?` to provide an error compatible with `Result<(), generation_error::GenerationError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/lib/generation/generator.rs:299:96
[INFO] [stdout]     |
[INFO] [stdout] 244 | /     fn declare_class_object(
[INFO] [stdout] 245 | |         &mut self,
[INFO] [stdout] 246 | |         name: &str,
[INFO] [stdout] 247 | |         assembly: &mut Assembly,
[INFO] [stdout] 248 | |         class: &Node,
[INFO] [stdout] 249 | |     ) -> GenerationResult<()> {
[INFO] [stdout]     | |_____________________________- this function returns a `Result`
[INFO] [stdout] ...
[INFO] [stdout] 299 |                       let owning_class = self.analysis.navigator.closest_class_upwards(&variable)?;
[INFO] [stdout]     |                                                                                                  ^ use `.ok_or(...)?` to provide an error compatible with `Result<(), generation_error::GenerationError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/lib/generation/generator.rs:301:81
[INFO] [stdout]     |
[INFO] [stdout] 244 | /     fn declare_class_object(
[INFO] [stdout] 245 | |         &mut self,
[INFO] [stdout] 246 | |         name: &str,
[INFO] [stdout] 247 | |         assembly: &mut Assembly,
[INFO] [stdout] 248 | |         class: &Node,
[INFO] [stdout] 249 | |     ) -> GenerationResult<()> {
[INFO] [stdout]     | |_____________________________- this function returns a `Result`
[INFO] [stdout] ...
[INFO] [stdout] 301 |                           self.analysis.navigator.qualified_name_of(&owning_class)?;
[INFO] [stdout]     |                                                                                   ^ use `.ok_or(...)?` to provide an error compatible with `Result<(), generation_error::GenerationError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/lib/generation/generator.rs:321:84
[INFO] [stdout]     |
[INFO] [stdout] 244 | /     fn declare_class_object(
[INFO] [stdout] 245 | |         &mut self,
[INFO] [stdout] 246 | |         name: &str,
[INFO] [stdout] 247 | |         assembly: &mut Assembly,
[INFO] [stdout] 248 | |         class: &Node,
[INFO] [stdout] 249 | |     ) -> GenerationResult<()> {
[INFO] [stdout]     | |_____________________________- this function returns a `Result`
[INFO] [stdout] ...
[INFO] [stdout] 321 |                   let arity = self.analysis.navigator.initializer_arity(&initializer)?;
[INFO] [stdout]     |                                                                                      ^ use `.ok_or(...)?` to provide an error compatible with `Result<(), generation_error::GenerationError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/lib/generation/generator.rs:343:74
[INFO] [stdout]     |
[INFO] [stdout] 342 |     fn declare_class(&mut self, assembly: &mut Assembly, class: &Node) -> GenerationResult<()> {
[INFO] [stdout]     |     ------------------------------------------------------------------------------------------ this function returns a `Result`
[INFO] [stdout] 343 |         let (qn, _, _) = self.analysis.navigator.qualified_name_of(class)?;
[INFO] [stdout]     |                                                                          ^ use `.ok_or(...)?` to provide an error compatible with `Result<(), generation_error::GenerationError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/lib/generation/generator.rs:355:82
[INFO] [stdout]     |
[INFO] [stdout] 342 |     fn declare_class(&mut self, assembly: &mut Assembly, class: &Node) -> GenerationResult<()> {
[INFO] [stdout]     |     ------------------------------------------------------------------------------------------ this function returns a `Result`
[INFO] [stdout] ...
[INFO] [stdout] 355 |             let (variable_name, _) = self.analysis.navigator.symbol_of(&variable)?;
[INFO] [stdout]     |                                                                                  ^ use `.ok_or(...)?` to provide an error compatible with `Result<(), generation_error::GenerationError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/lib/generation/generator.rs:393:66
[INFO] [stdout]     |
[INFO] [stdout] 342 |     fn declare_class(&mut self, assembly: &mut Assembly, class: &Node) -> GenerationResult<()> {
[INFO] [stdout]     |     ------------------------------------------------------------------------------------------ this function returns a `Result`
[INFO] [stdout] ...
[INFO] [stdout] 393 |                     .qualified_name_of_method(&overridden_method)?;
[INFO] [stdout]     |                                                                  ^ use `.ok_or(...)?` to provide an error compatible with `Result<(), generation_error::GenerationError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/lib/generation/generator.rs:406:73
[INFO] [stdout]     |
[INFO] [stdout] 342 |     fn declare_class(&mut self, assembly: &mut Assembly, class: &Node) -> GenerationResult<()> {
[INFO] [stdout]     |     ------------------------------------------------------------------------------------------ this function returns a `Result`
[INFO] [stdout] ...
[INFO] [stdout] 406 |             let method = self.analysis.navigator.find_node(behaviour.id)?;
[INFO] [stdout]     |                                                                         ^ use `.ok_or(...)?` to provide an error compatible with `Result<(), generation_error::GenerationError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/lib/generation/generator.rs:407:86
[INFO] [stdout]     |
[INFO] [stdout] 342 |     fn declare_class(&mut self, assembly: &mut Assembly, class: &Node) -> GenerationResult<()> {
[INFO] [stdout]     |     ------------------------------------------------------------------------------------------ this function returns a `Result`
[INFO] [stdout] ...
[INFO] [stdout] 407 |             let owning_class = self.analysis.navigator.closest_class_upwards(&method)?;
[INFO] [stdout]     |                                                                                      ^ use `.ok_or(...)?` to provide an error compatible with `Result<(), generation_error::GenerationError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/lib/generation/generator.rs:411:77
[INFO] [stdout]     |
[INFO] [stdout] 342 |     fn declare_class(&mut self, assembly: &mut Assembly, class: &Node) -> GenerationResult<()> {
[INFO] [stdout]     |     ------------------------------------------------------------------------------------------ this function returns a `Result`
[INFO] [stdout] ...
[INFO] [stdout] 411 |                     self.analysis.navigator.qualified_name_of(&owning_class)?;
[INFO] [stdout]     |                                                                             ^ use `.ok_or(...)?` to provide an error compatible with `Result<(), generation_error::GenerationError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/lib/generation/generator.rs:413:85
[INFO] [stdout]     |
[INFO] [stdout] 342 |     fn declare_class(&mut self, assembly: &mut Assembly, class: &Node) -> GenerationResult<()> {
[INFO] [stdout]     |     ------------------------------------------------------------------------------------------ this function returns a `Result`
[INFO] [stdout] ...
[INFO] [stdout] 413 |                 let behaviour_node = self.analysis.navigator.find_node(behaviour.id)?;
[INFO] [stdout]     |                                                                                     ^ use `.ok_or(...)?` to provide an error compatible with `Result<(), generation_error::GenerationError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/lib/generation/generator.rs:478:71
[INFO] [stdout]     |
[INFO] [stdout] 472 | /     fn declare_method(
[INFO] [stdout] 473 | |         &mut self,
[INFO] [stdout] 474 | |         assembly: &mut Assembly,
[INFO] [stdout] 475 | |         class_name: &str,
[INFO] [stdout] 476 | |         method: &Node,
[INFO] [stdout] 477 | |     ) -> GenerationResult<(String, Label)> {
[INFO] [stdout]     | |__________________________________________- this function returns a `Result`
[INFO] [stdout] 478 |           let selector = self.analysis.navigator.method_selector(method)?;
[INFO] [stdout]     |                                                                         ^ use `.ok_or(...)?` to provide an error compatible with `Result<(std::string::String, std::string::String), generation_error::GenerationError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/lib/generation/generator.rs:496:61
[INFO] [stdout]     |
[INFO] [stdout] 472 | /     fn declare_method(
[INFO] [stdout] 473 | |         &mut self,
[INFO] [stdout] 474 | |         assembly: &mut Assembly,
[INFO] [stdout] 475 | |         class_name: &str,
[INFO] [stdout] 476 | |         method: &Node,
[INFO] [stdout] 477 | |     ) -> GenerationResult<(String, Label)> {
[INFO] [stdout]     | |__________________________________________- this function returns a `Result`
[INFO] [stdout] ...
[INFO] [stdout] 496 |                   self.analysis.navigator.method_arity(method)? as u16,
[INFO] [stdout]     |                                                               ^ use `.ok_or(...)?` to provide an error compatible with `Result<(std::string::String, std::string::String), generation_error::GenerationError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/lib/generation/generator.rs:527:88
[INFO] [stdout]     |
[INFO] [stdout] 520 | /     fn generate_reference_to(
[INFO] [stdout] 521 | |         &mut self,
[INFO] [stdout] 522 | |         section: &mut Section,
[INFO] [stdout] 523 | |         declaration: &Node,
[INFO] [stdout] 524 | |     ) -> GenerationResult<()> {
[INFO] [stdout]     | |_____________________________- this function returns a `Result`
[INFO] [stdout] ...
[INFO] [stdout] 527 |                   let (qn, _, _) = self.analysis.navigator.qualified_name_of(declaration)?;
[INFO] [stdout]     |                                                                                          ^ use `.ok_or(...)?` to provide an error compatible with `Result<(), generation_error::GenerationError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/lib/generation/generator.rs:541:67
[INFO] [stdout]     |
[INFO] [stdout] 520 | /     fn generate_reference_to(
[INFO] [stdout] 521 | |         &mut self,
[INFO] [stdout] 522 | |         section: &mut Section,
[INFO] [stdout] 523 | |         declaration: &Node,
[INFO] [stdout] 524 | |     ) -> GenerationResult<()> {
[INFO] [stdout]     | |_____________________________- this function returns a `Result`
[INFO] [stdout] ...
[INFO] [stdout] 541 |                       self.analysis.navigator.symbol_of(declaration)?.0,
[INFO] [stdout]     |                                                                     ^ use `.ok_or(...)?` to provide an error compatible with `Result<(), generation_error::GenerationError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/lib/generation/generator.rs:598:74
[INFO] [stdout]     |
[INFO] [stdout] 584 | /     fn generate_expression(
[INFO] [stdout] 585 | |         &mut self,
[INFO] [stdout] 586 | |         assembly: &mut Assembly,
[INFO] [stdout] 587 | |         section: &mut Section,
[INFO] [stdout] 588 | |         expression: &Node,
[INFO] [stdout] 589 | |     ) -> GenerationResult<()> {
[INFO] [stdout]     | |_____________________________- this function returns a `Result`
[INFO] [stdout] ...
[INFO] [stdout] 598 |                   let e = self.analysis.navigator.find_child(expression, e)?;
[INFO] [stdout]     |                                                                            ^ use `.ok_or(...)?` to provide an error compatible with `Result<(), generation_error::GenerationError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/lib/generation/generator.rs:604:74
[INFO] [stdout]     |
[INFO] [stdout] 584 | /     fn generate_expression(
[INFO] [stdout] 585 | |         &mut self,
[INFO] [stdout] 586 | |         assembly: &mut Assembly,
[INFO] [stdout] 587 | |         section: &mut Section,
[INFO] [stdout] 588 | |         expression: &Node,
[INFO] [stdout] 589 | |     ) -> GenerationResult<()> {
[INFO] [stdout]     | |_____________________________- this function returns a `Result`
[INFO] [stdout] ...
[INFO] [stdout] 604 |                   let e = self.analysis.navigator.find_child(expression, e)?;
[INFO] [stdout]     |                                                                            ^ use `.ok_or(...)?` to provide an error compatible with `Result<(), generation_error::GenerationError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/lib/generation/generator.rs:608:74
[INFO] [stdout]     |
[INFO] [stdout] 584 | /     fn generate_expression(
[INFO] [stdout] 585 | |         &mut self,
[INFO] [stdout] 586 | |         assembly: &mut Assembly,
[INFO] [stdout] 587 | |         section: &mut Section,
[INFO] [stdout] 588 | |         expression: &Node,
[INFO] [stdout] 589 | |     ) -> GenerationResult<()> {
[INFO] [stdout]     | |_____________________________- this function returns a `Result`
[INFO] [stdout] ...
[INFO] [stdout] 608 |                   let e = self.analysis.navigator.find_child(expression, e)?;
[INFO] [stdout]     |                                                                            ^ use `.ok_or(...)?` to provide an error compatible with `Result<(), generation_error::GenerationError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/lib/generation/generator.rs:635:57
[INFO] [stdout]     |
[INFO] [stdout] 584 | /     fn generate_expression(
[INFO] [stdout] 585 | |         &mut self,
[INFO] [stdout] 586 | |         assembly: &mut Assembly,
[INFO] [stdout] 587 | |         section: &mut Section,
[INFO] [stdout] 588 | |         expression: &Node,
[INFO] [stdout] 589 | |     ) -> GenerationResult<()> {
[INFO] [stdout]     | |_____________________________- this function returns a `Result`
[INFO] [stdout] ...
[INFO] [stdout] 635 |                       .find_child(expression, let_binding)?;
[INFO] [stdout]     |                                                           ^ use `.ok_or(...)?` to provide an error compatible with `Result<(), generation_error::GenerationError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/lib/generation/generator.rs:636:83
[INFO] [stdout]     |
[INFO] [stdout] 584 | /     fn generate_expression(
[INFO] [stdout] 585 | |         &mut self,
[INFO] [stdout] 586 | |         assembly: &mut Assembly,
[INFO] [stdout] 587 | |         section: &mut Section,
[INFO] [stdout] 588 | |         expression: &Node,
[INFO] [stdout] 589 | |     ) -> GenerationResult<()> {
[INFO] [stdout]     | |_____________________________- this function returns a `Result`
[INFO] [stdout] ...
[INFO] [stdout] 636 |                   let expression = self.analysis.navigator.find_child(expression, e)?;
[INFO] [stdout]     |                                                                                     ^ use `.ok_or(...)?` to provide an error compatible with `Result<(), generation_error::GenerationError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/lib/generation/generator.rs:649:74
[INFO] [stdout]     |
[INFO] [stdout] 584 | /     fn generate_expression(
[INFO] [stdout] 585 | |         &mut self,
[INFO] [stdout] 586 | |         assembly: &mut Assembly,
[INFO] [stdout] 587 | |         section: &mut Section,
[INFO] [stdout] 588 | |         expression: &Node,
[INFO] [stdout] 589 | |     ) -> GenerationResult<()> {
[INFO] [stdout]     | |_____________________________- this function returns a `Result`
[INFO] [stdout] ...
[INFO] [stdout] 649 |                       .find_declaration(expression, DeclarationKind::Value)?;
[INFO] [stdout]     |                                                                            ^ use `.ok_or(...)?` to provide an error compatible with `Result<(), generation_error::GenerationError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/lib/generation/generator.rs:660:65
[INFO] [stdout]     |
[INFO] [stdout] 584 | /     fn generate_expression(
[INFO] [stdout] 585 | |         &mut self,
[INFO] [stdout] 586 | |         assembly: &mut Assembly,
[INFO] [stdout] 587 | |         section: &mut Section,
[INFO] [stdout] 588 | |         expression: &Node,
[INFO] [stdout] 589 | |     ) -> GenerationResult<()> {
[INFO] [stdout]     | |_____________________________- this function returns a `Result`
[INFO] [stdout] ...
[INFO] [stdout] 660 |                       .get_behaviour_from_message_send(expression)?;
[INFO] [stdout]     |                                                                   ^ use `.ok_or(...)?` to provide an error compatible with `Result<(), generation_error::GenerationError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/lib/generation/generator.rs:663:86
[INFO] [stdout]     |
[INFO] [stdout] 584 | /     fn generate_expression(
[INFO] [stdout] 585 | |         &mut self,
[INFO] [stdout] 586 | |         assembly: &mut Assembly,
[INFO] [stdout] 587 | |         section: &mut Section,
[INFO] [stdout] 588 | |         expression: &Node,
[INFO] [stdout] 589 | |     ) -> GenerationResult<()> {
[INFO] [stdout]     | |_____________________________- this function returns a `Result`
[INFO] [stdout] ...
[INFO] [stdout] 663 |                   let message = self.analysis.navigator.find_child(expression, message)?;
[INFO] [stdout]     |                                                                                        ^ use `.ok_or(...)?` to provide an error compatible with `Result<(), generation_error::GenerationError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/lib/generation/generator.rs:670:83
[INFO] [stdout]     |
[INFO] [stdout] 584 | /     fn generate_expression(
[INFO] [stdout] 585 | |         &mut self,
[INFO] [stdout] 586 | |         assembly: &mut Assembly,
[INFO] [stdout] 587 | |         section: &mut Section,
[INFO] [stdout] 588 | |         expression: &Node,
[INFO] [stdout] 589 | |     ) -> GenerationResult<()> {
[INFO] [stdout]     | |_____________________________- this function returns a `Result`
[INFO] [stdout] ...
[INFO] [stdout] 670 |                   let expression = self.analysis.navigator.find_child(expression, r)?;
[INFO] [stdout]     |                                                                                     ^ use `.ok_or(...)?` to provide an error compatible with `Result<(), generation_error::GenerationError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/lib/generation/generator.rs:673:79
[INFO] [stdout]     |
[INFO] [stdout] 584 | /     fn generate_expression(
[INFO] [stdout] 585 | |         &mut self,
[INFO] [stdout] 586 | |         assembly: &mut Assembly,
[INFO] [stdout] 587 | |         section: &mut Section,
[INFO] [stdout] 588 | |         expression: &Node,
[INFO] [stdout] 589 | |     ) -> GenerationResult<()> {
[INFO] [stdout]     | |_____________________________- this function returns a `Result`
[INFO] [stdout] ...
[INFO] [stdout] 673 |                   let qualified_name = self.qualified_behaviour_name(&behaviour)?;
[INFO] [stdout]     |                                                                                 ^ use `.ok_or(...)?` to provide an error compatible with `Result<(), generation_error::GenerationError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/lib/generation/generator.rs:752:94
[INFO] [stdout]     |
[INFO] [stdout] 743 | /     fn generate_repl_line<D: REPLDirectives>(
[INFO] [stdout] 744 | |         &mut self,
[INFO] [stdout] 745 | |         directives: D,
[INFO] [stdout] 746 | |         assembly: &mut Assembly,
[INFO] [stdout] 747 | |         repl_line: &Node,
[INFO] [stdout] 748 | |     ) -> GenerationResult<()> {
[INFO] [stdout]     | |_____________________________- this function returns a `Result`
[INFO] [stdout] ...
[INFO] [stdout] 752 |                       let statement = self.analysis.navigator.find_child(repl_line, *statement)?;
[INFO] [stdout]     |                                                                                                ^ use `.ok_or(...)?` to provide an error compatible with `Result<(), generation_error::GenerationError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/lib/generation/generator.rs:772:61
[INFO] [stdout]     |
[INFO] [stdout] 761 | /     fn generate_repl_statement<D: REPLDirectives>(
[INFO] [stdout] 762 | |         &mut self,
[INFO] [stdout] 763 | |         directives: &D,
[INFO] [stdout] 764 | |         assembly: &mut Assembly,
[INFO] [stdout] 765 | |         repl_statement: &Node,
[INFO] [stdout] 766 | |     ) -> GenerationResult<()> {
[INFO] [stdout]     | |_____________________________- this function returns a `Result`
[INFO] [stdout] ...
[INFO] [stdout] 772 |                       .find_child(&repl_statement, expression)?;
[INFO] [stdout]     |                                                               ^ use `.ok_or(...)?` to provide an error compatible with `Result<(), generation_error::GenerationError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/lib/generation/generator.rs:781:88
[INFO] [stdout]     |
[INFO] [stdout] 761 | /     fn generate_repl_statement<D: REPLDirectives>(
[INFO] [stdout] 762 | |         &mut self,
[INFO] [stdout] 763 | |         directives: &D,
[INFO] [stdout] 764 | |         assembly: &mut Assembly,
[INFO] [stdout] 765 | |         repl_statement: &Node,
[INFO] [stdout] 766 | |     ) -> GenerationResult<()> {
[INFO] [stdout]     | |_____________________________- this function returns a `Result`
[INFO] [stdout] ...
[INFO] [stdout] 781 |                   let symbol = self.analysis.navigator.find_child(repl_statement, symbol)?;
[INFO] [stdout]     |                                                                                          ^ use `.ok_or(...)?` to provide an error compatible with `Result<(), generation_error::GenerationError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/lib/generation/generator.rs:788:72
[INFO] [stdout]     |
[INFO] [stdout] 761 | /     fn generate_repl_statement<D: REPLDirectives>(
[INFO] [stdout] 762 | |         &mut self,
[INFO] [stdout] 763 | |         directives: &D,
[INFO] [stdout] 764 | |         assembly: &mut Assembly,
[INFO] [stdout] 765 | |         repl_statement: &Node,
[INFO] [stdout] 766 | |     ) -> GenerationResult<()> {
[INFO] [stdout]     | |_____________________________- this function returns a `Result`
[INFO] [stdout] ...
[INFO] [stdout] 788 |                                   .find_child(repl_statement, expression)?;
[INFO] [stdout]     |                                                                          ^ use `.ok_or(...)?` to provide an error compatible with `Result<(), generation_error::GenerationError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/lib/generation/generator.rs:796:72
[INFO] [stdout]     |
[INFO] [stdout] 761 | /     fn generate_repl_statement<D: REPLDirectives>(
[INFO] [stdout] 762 | |         &mut self,
[INFO] [stdout] 763 | |         directives: &D,
[INFO] [stdout] 764 | |         assembly: &mut Assembly,
[INFO] [stdout] 765 | |         repl_statement: &Node,
[INFO] [stdout] 766 | |     ) -> GenerationResult<()> {
[INFO] [stdout]     | |_____________________________- this function returns a `Result`
[INFO] [stdout] ...
[INFO] [stdout] 796 |                                   .find_child(repl_statement, expression)?;
[INFO] [stdout]     |                                                                          ^ use `.ok_or(...)?` to provide an error compatible with `Result<(), generation_error::GenerationError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/lib/generation/generator.rs:822:65
[INFO] [stdout]     |
[INFO] [stdout] 810 |     fn generate_number(&mut self, section: &mut Section, literal: &Node) -> GenerationResult<()> {
[INFO] [stdout]     |     -------------------------------------------------------------------------------------------- this function returns a `Result`
[INFO] [stdout] ...
[INFO] [stdout] 822 |             let class = self.analysis.navigator.find_node(class)?;
[INFO] [stdout]     |                                                                 ^ use `.ok_or(...)?` to provide an error compatible with `Result<(), generation_error::GenerationError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/lib/generation/generator.rs:823:79
[INFO] [stdout]     |
[INFO] [stdout] 810 |     fn generate_number(&mut self, section: &mut Section, literal: &Node) -> GenerationResult<()> {
[INFO] [stdout]     |     -------------------------------------------------------------------------------------------- this function returns a `Result`
[INFO] [stdout] ...
[INFO] [stdout] 823 |             let (qn, _, _) = self.analysis.navigator.qualified_name_of(&class)?;
[INFO] [stdout]     |                                                                               ^ use `.ok_or(...)?` to provide an error compatible with `Result<(), generation_error::GenerationError>`
[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]    --> src/lib/server/server.rs:136:56
[INFO] [stdout]     |
[INFO] [stdout] 135 |     pub fn type_at(&self, location: Location) -> semantics::Type {
[INFO] [stdout]     |     ------------------------------------------------------------ this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] 136 |         let cell = self.module_cells.get(&location.uri)?;
[INFO] [stdout]     |                                                        ^ cannot use the `?` operator in a method that returns `types::Type`
[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]    --> src/lib/server/server.rs:137:47
[INFO] [stdout]     |
[INFO] [stdout] 135 |     pub fn type_at(&self, location: Location) -> semantics::Type {
[INFO] [stdout]     |     ------------------------------------------------------------ this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] 136 |         let cell = self.module_cells.get(&location.uri)?;
[INFO] [stdout] 137 |         let node = cell.tree.node_at(location)?;
[INFO] [stdout]     |                                               ^ cannot use the `?` operator in a method that returns `types::Type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0046, E0220, E0277, E0407, E0425, E0432, E0437, E0635, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0046`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `loalang` (lib) due to 91 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "1f79a117225952d9a89c2a108070e3aae2a1d0a9b389afa9b0d580e82dbf5871", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f79a117225952d9a89c2a108070e3aae2a1d0a9b389afa9b0d580e82dbf5871", kill_on_drop: false }`
[INFO] [stdout] 1f79a117225952d9a89c2a108070e3aae2a1d0a9b389afa9b0d580e82dbf5871
