[INFO] fetching crate merfolk 0.1.4...
[INFO] testing merfolk-0.1.4 against 1.91.0 for beta-1.92-2
[INFO] extracting crate merfolk 0.1.4 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate merfolk 0.1.4
[INFO] finished tweaking crates.io crate merfolk 0.1.4
[INFO] tweaked toml for crates.io crate merfolk 0.1.4 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate merfolk 0.1.4 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 80 packages to latest compatible versions
[INFO] [stderr]       Adding derive_builder v0.10.2 (available: v0.20.2)
[INFO] [stderr]       Adding hyper v0.14.32 (available: v1.7.0)
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[INFO] [stderr]       Adding spin v0.7.1 (available: v0.10.0)
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.17)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded darling v0.12.4
[INFO] [stderr]   Downloaded darling_core v0.12.4
[INFO] [stderr]   Downloaded derive_builder_core v0.10.2
[INFO] [stderr]   Downloaded derive_builder v0.10.2
[INFO] [stderr]   Downloaded derive_builder_macro v0.10.2
[INFO] [stderr]   Downloaded spin v0.7.1
[INFO] [stderr]   Downloaded darling_macro v0.12.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 82b06d8decd34619369a8577c00e4912b82cd25e3b8535557272381d1a2997e2
[INFO] running `Command { std: "docker" "start" "-a" "82b06d8decd34619369a8577c00e4912b82cd25e3b8535557272381d1a2997e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "82b06d8decd34619369a8577c00e4912b82cd25e3b8535557272381d1a2997e2", kill_on_drop: false }`
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[INFO] [stdout] 28f276e15e76347bb3747e707c0a80f7fe666a9ba695e9062ae4a831638cb536
[INFO] running `Command { std: "docker" "start" "-a" "28f276e15e76347bb3747e707c0a80f7fe666a9ba695e9062ae4a831638cb536", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling anyhow v1.0.100
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling spin v0.7.1
[INFO] [stderr]    Compiling syn v2.0.108
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling darling_core v0.12.4
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling darling_macro v0.12.4
[INFO] [stderr]    Compiling darling v0.12.4
[INFO] [stderr]    Compiling derive_builder_core v0.10.2
[INFO] [stderr]    Compiling derive_builder_macro v0.10.2
[INFO] [stderr]    Compiling derive_builder v0.10.2
[INFO] [stderr]    Compiling merfolk v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.87s
[INFO] running `Command { std: "docker" "inspect" "28f276e15e76347bb3747e707c0a80f7fe666a9ba695e9062ae4a831638cb536", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28f276e15e76347bb3747e707c0a80f7fe666a9ba695e9062ae4a831638cb536", kill_on_drop: false }`
[INFO] [stdout] 28f276e15e76347bb3747e707c0a80f7fe666a9ba695e9062ae4a831638cb536
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6e2ee82ec911fc0901077b016c41f27f542646df4b21ff284008c158e4cc785c
[INFO] running `Command { std: "docker" "start" "-a" "6e2ee82ec911fc0901077b016c41f27f542646df4b21ff284008c158e4cc785c", kill_on_drop: false }`
[INFO] [stderr]    Compiling darling_core v0.12.4
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling socket2 v0.6.1
[INFO] [stderr]    Compiling mio v1.1.0
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling futures-task v0.3.31
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling http-body v0.4.6
[INFO] [stderr]    Compiling socket2 v0.5.10
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling tokio v1.48.0
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling darling_macro v0.12.4
[INFO] [stderr]    Compiling darling v0.12.4
[INFO] [stderr]    Compiling derive_builder_core v0.10.2
[INFO] [stderr]    Compiling derive_builder_macro v0.10.2
[INFO] [stderr]    Compiling derive_builder v0.10.2
[INFO] [stderr]    Compiling merfolk v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling hyper v0.14.32
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 8.79s
[INFO] running `Command { std: "docker" "inspect" "6e2ee82ec911fc0901077b016c41f27f542646df4b21ff284008c158e4cc785c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e2ee82ec911fc0901077b016c41f27f542646df4b21ff284008c158e4cc785c", kill_on_drop: false }`
[INFO] [stdout] 6e2ee82ec911fc0901077b016c41f27f542646df4b21ff284008c158e4cc785c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 769c835a3823f0d287437b7591d7852a96499c74cc2aece527d51288aa0b23aa
[INFO] running `Command { std: "docker" "start" "-a" "769c835a3823f0d287437b7591d7852a96499c74cc2aece527d51288aa0b23aa", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/merfolk-7261d37900d37f19)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test::backend ... ok
[INFO] [stdout] test test::frontend ... ok
[INFO] [stdout] test test::init ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests merfolk
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test src/lib.rs - (line 32) ... FAILED
[INFO] [stdout] test src/lib.rs - Mer<B,F>::frontend (line 340) - compile ... FAILED
[INFO] [stdout] test src/lib.rs - Mer<B,F>::backend (line 364) - compile ... FAILED
[INFO] [stdout] test src/lib.rs - Mer<B,F>::middlewares (line 388) - compile ... FAILED
[INFO] [stdout] test src/helpers/smart_lock.rs - helpers::smart_lock (line 7) ... ok
[INFO] [stdout] test src/lib.rs - (line 76) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 103) - compile ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 32) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `merfolk_backend_http`
[INFO] [stdout]  --> src/lib.rs:36:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use merfolk_backend_http::Http;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `merfolk_backend_http`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `merfolk_backend_http`, use `cargo add merfolk_backend_http` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `merfolk_frontend_register`
[INFO] [stdout]  --> src/lib.rs:37:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use merfolk_frontend_register::Register;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `merfolk_frontend_register`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `merfolk_frontend_register`, use `cargo add merfolk_frontend_register` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - Mer<B,F>::frontend (line 340) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `merfolk_backend_http`
[INFO] [stdout]  --> src/lib.rs:345:14
[INFO] [stdout]   |
[INFO] [stdout] 7 |     .backend(merfolk_backend_http::Http::builder().build().unwrap())
[INFO] [stdout]   |              ^^^^^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `merfolk_backend_http`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `merfolk_backend_http`, use `cargo add merfolk_backend_http` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `merfolk_frontend_register`
[INFO] [stdout]  --> src/lib.rs:346:15
[INFO] [stdout]   |
[INFO] [stdout] 8 |     .frontend(merfolk_frontend_register::Register::builder().build().unwrap())
[INFO] [stdout]   |               ^^^^^^^^^^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `merfolk_frontend_register`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `merfolk_frontend_register`, use `cargo add merfolk_frontend_register` to add it to your `Cargo.toml`
[INFO] [stdout] help: there is an enum variant `merfolk::Error::Register`; try using the variant's enum
[INFO] [stdout]   |
[INFO] [stdout] 8 -     .frontend(merfolk_frontend_register::Register::builder().build().unwrap())
[INFO] [stdout] 8 +     .frontend(merfolk::Error::builder().build().unwrap())
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - Mer<B,F>::backend (line 364) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `merfolk_backend_http`
[INFO] [stdout]  --> src/lib.rs:369:14
[INFO] [stdout]   |
[INFO] [stdout] 7 |     .backend(merfolk_backend_http::Http::builder().build().unwrap())
[INFO] [stdout]   |              ^^^^^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `merfolk_backend_http`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `merfolk_backend_http`, use `cargo add merfolk_backend_http` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `merfolk_frontend_register`
[INFO] [stdout]  --> src/lib.rs:370:15
[INFO] [stdout]   |
[INFO] [stdout] 8 |     .frontend(merfolk_frontend_register::Register::builder().build().unwrap())
[INFO] [stdout]   |               ^^^^^^^^^^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `merfolk_frontend_register`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `merfolk_frontend_register`, use `cargo add merfolk_frontend_register` to add it to your `Cargo.toml`
[INFO] [stdout] help: there is an enum variant `merfolk::Error::Register`; try using the variant's enum
[INFO] [stdout]   |
[INFO] [stdout] 8 -     .frontend(merfolk_frontend_register::Register::builder().build().unwrap())
[INFO] [stdout] 8 +     .frontend(merfolk::Error::builder().build().unwrap())
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - Mer<B,F>::middlewares (line 388) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `merfolk_backend_http`
[INFO] [stdout]  --> src/lib.rs:391:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use merfolk_backend_http::Http;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `merfolk_backend_http`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `merfolk_backend_http`, use `cargo add merfolk_backend_http` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `merfolk_middleware_authentication`
[INFO] [stdout]  --> src/lib.rs:392:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use merfolk_middleware_authentication::Authentication;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `merfolk_middleware_authentication`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `merfolk_middleware_authentication`, use `cargo add merfolk_middleware_authentication` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `merfolk_backend_http`
[INFO] [stdout]  --> src/lib.rs:395:14
[INFO] [stdout]   |
[INFO] [stdout] 9 |     .backend(merfolk_backend_http::Http::builder().build().unwrap())
[INFO] [stdout]   |              ^^^^^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `merfolk_backend_http`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `merfolk_backend_http`, use `cargo add merfolk_backend_http` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `merfolk_frontend_register`
[INFO] [stdout]   --> src/lib.rs:396:15
[INFO] [stdout]    |
[INFO] [stdout] 10 |     .frontend(merfolk_frontend_register::Register::builder().build().unwrap())
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `merfolk_frontend_register`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `merfolk_frontend_register`, use `cargo add merfolk_frontend_register` to add it to your `Cargo.toml`
[INFO] [stdout] help: there is an enum variant `merfolk::Error::Register`; try using the variant's enum
[INFO] [stdout]    |
[INFO] [stdout] 10 -     .frontend(merfolk_frontend_register::Register::builder().build().unwrap())
[INFO] [stdout] 10 +     .frontend(merfolk::Error::builder().build().unwrap())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - (line 76) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `merfolk_backend_http`
[INFO] [stdout]  --> src/lib.rs:81:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use merfolk_backend_http::Http;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `merfolk_backend_http`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `merfolk_backend_http`, use `cargo add merfolk_backend_http` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `merfolk_frontend_register`
[INFO] [stdout]  --> src/lib.rs:82:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use merfolk_frontend_register::Register;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `merfolk_frontend_register`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `merfolk_frontend_register`, use `cargo add merfolk_frontend_register` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - (line 103) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `merfolk_backend_http`
[INFO] [stdout]  --> src/lib.rs:107:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use merfolk_backend_http::Http;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `merfolk_backend_http`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `merfolk_backend_http`, use `cargo add merfolk_backend_http` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `merfolk_frontend_register`
[INFO] [stdout]  --> src/lib.rs:108:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use merfolk_frontend_register::Register;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `merfolk_frontend_register`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `merfolk_frontend_register`, use `cargo add merfolk_frontend_register` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `merfolk_frontend_derive`
[INFO] [stdout]  --> src/lib.rs:109:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use merfolk_frontend_derive::frontend;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `merfolk_frontend_derive`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `merfolk_frontend_derive`, use `cargo add merfolk_frontend_derive` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `merfolk_frontend_duplex`
[INFO] [stdout]  --> src/lib.rs:110:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use merfolk_frontend_duplex::Duplex;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `merfolk_frontend_duplex`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `merfolk_frontend_duplex`, use `cargo add merfolk_frontend_duplex` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `merfolk_middleware_router`
[INFO] [stdout]   --> src/lib.rs:111:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use merfolk_middleware_router::Router;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `merfolk_middleware_router`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `merfolk_middleware_router`, use `cargo add merfolk_middleware_router` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `builder` found for struct `main::Receiver` in the current scope
[INFO] [stdout]   --> src/lib.rs:135:35
[INFO] [stdout]    |
[INFO] [stdout] 14 | struct Receiver {}
[INFO] [stdout]    | --------------- function or associated item `builder` not found for this struct
[INFO] [stdout] ...
[INFO] [stdout] 34 | let receiver_frontend = Receiver::builder().build().unwrap();
[INFO] [stdout]    |                                   ^^^^^^^ function or associated item not found in `main::Receiver`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0599.
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 103)
[INFO] [stdout]     src/lib.rs - (line 32)
[INFO] [stdout]     src/lib.rs - (line 76)
[INFO] [stdout]     src/lib.rs - Mer<B,F>::backend (line 364)
[INFO] [stdout]     src/lib.rs - Mer<B,F>::frontend (line 340)
[INFO] [stdout]     src/lib.rs - Mer<B,F>::middlewares (line 388)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 1 passed; 6 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.44s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "769c835a3823f0d287437b7591d7852a96499c74cc2aece527d51288aa0b23aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "769c835a3823f0d287437b7591d7852a96499c74cc2aece527d51288aa0b23aa", kill_on_drop: false }`
[INFO] [stdout] 769c835a3823f0d287437b7591d7852a96499c74cc2aece527d51288aa0b23aa