[INFO] fetching crate merfolk_frontend_derive 0.1.0...
[INFO] building merfolk_frontend_derive-0.1.0 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate merfolk_frontend_derive 0.1.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate merfolk_frontend_derive 0.1.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate merfolk_frontend_derive 0.1.0
[INFO] tweaked toml for crates.io crate merfolk_frontend_derive 0.1.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate merfolk_frontend_derive 0.1.0 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 77 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 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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "inspect" "b9ba6e1e5ac8099cdd4c0aa2c75a19488cf21a8c35e5f74fb883550a1df026ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9ba6e1e5ac8099cdd4c0aa2c75a19488cf21a8c35e5f74fb883550a1df026ce", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e01f5c3db98462dabf1b13899ff849add43cf6982530f955b59c1f7de3b60926
[INFO] running `Command { std: "docker" "start" "-a" "e01f5c3db98462dabf1b13899ff849add43cf6982530f955b59c1f7de3b60926", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stderr]    Compiling spin v0.7.1
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling darling_core v0.12.4
[INFO] [stderr]    Compiling darling_macro v0.12.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling darling v0.12.4
[INFO] [stderr]    Compiling derive_builder_core v0.10.2
[INFO] [stderr]    Compiling merfolk_frontend_derive_macros v0.1.0
[INFO] [stderr]    Compiling derive_builder_macro v0.10.2
[INFO] [stderr]    Compiling derive_builder v0.10.2
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling merfolk v0.1.4
[INFO] [stderr]    Compiling merfolk_frontend_derive v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.91s
[INFO] running `Command { std: "docker" "inspect" "e01f5c3db98462dabf1b13899ff849add43cf6982530f955b59c1f7de3b60926", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e01f5c3db98462dabf1b13899ff849add43cf6982530f955b59c1f7de3b60926", kill_on_drop: false }`
[INFO] [stdout] e01f5c3db98462dabf1b13899ff849add43cf6982530f955b59c1f7de3b60926
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 121f54f4ae06191c0663ad781565694d0f46cd32b2605b0bdbc04ab64973645f
[INFO] running `Command { std: "docker" "start" "-a" "121f54f4ae06191c0663ad781565694d0f46cd32b2605b0bdbc04ab64973645f", kill_on_drop: false }`
[INFO] [stderr]    Compiling darling_core v0.12.4
[INFO] [stderr]    Compiling futures-task v0.3.31
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling tokio v1.47.1
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling hyper v0.14.32
[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 merfolk_frontend_derive_macros v0.1.0
[INFO] [stderr]    Compiling derive_builder_macro v0.10.2
[INFO] [stderr]    Compiling derive_builder v0.10.2
[INFO] [stderr]    Compiling merfolk v0.1.4
[INFO] [stderr]    Compiling merfolk_frontend_derive v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `merfolk_backend_in_process`
[INFO] [stdout]   --> test/tests.rs:34:14
[INFO] [stdout]    |
[INFO] [stdout] 34 |     .backend(merfolk_backend_in_process::InProcess::builder().to(to).build().unwrap())
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `merfolk_backend_in_process`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `merfolk_backend_in_process`, use `cargo add merfolk_backend_in_process` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `merfolk_backend_in_process`
[INFO] [stdout]   --> test/tests.rs:40:14
[INFO] [stdout]    |
[INFO] [stdout] 40 |     .backend(merfolk_backend_in_process::InProcess::builder().from(from).build().unwrap())
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `merfolk_backend_in_process`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `merfolk_backend_in_process`, use `cargo add merfolk_backend_in_process` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `merfolk_backend_in_process`
[INFO] [stdout]   --> test/tests.rs:75:14
[INFO] [stdout]    |
[INFO] [stdout] 75 |     .backend(merfolk_backend_in_process::InProcess::builder().to(to).build().unwrap())
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `merfolk_backend_in_process`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `merfolk_backend_in_process`, use `cargo add merfolk_backend_in_process` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `merfolk_backend_in_process`
[INFO] [stdout]   --> test/tests.rs:81:14
[INFO] [stdout]    |
[INFO] [stdout] 81 |     .backend(merfolk_backend_in_process::InProcess::builder().from(from).build().unwrap())
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `merfolk_backend_in_process`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `merfolk_backend_in_process`, use `cargo add merfolk_backend_in_process` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `merfolk_backend_http`
[INFO] [stdout]    --> test/tests.rs:113:14
[INFO] [stdout]     |
[INFO] [stdout] 113 |     .backend(merfolk_backend_http::Http::builder().speak("http://localhost:8083".parse::<hyper::Uri>().unwrap()).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] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `merfolk_backend_http`
[INFO] [stdout]    --> test/tests.rs:120:7
[INFO] [stdout]     |
[INFO] [stdout] 120 |       merfolk_backend_http::Http::builder()
[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] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> test/tests.rs:46:39
[INFO] [stdout]    |
[INFO] [stdout] 46 |   assert_eq!(merfolk_caller.frontend(|f| { f.add(a, b).unwrap() }).unwrap(), a + b);
[INFO] [stdout]    |                                       ^      --- type must be known at this point
[INFO] [stdout]    |
[INFO] [stdout] help: consider giving this closure parameter an explicit type
[INFO] [stdout]    |
[INFO] [stdout] 46 |   assert_eq!(merfolk_caller.frontend(|f: /* Type */| { f.add(a, b).unwrap() }).unwrap(), a + b);
[INFO] [stdout]    |                                        ++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> test/tests.rs:86:28
[INFO] [stdout]    |
[INFO] [stdout] 86 |   merfolk_caller.frontend(|f| f.def().unwrap()).unwrap();
[INFO] [stdout]    |                            ^    --- type must be known at this point
[INFO] [stdout]    |
[INFO] [stdout] help: consider giving this closure parameter an explicit type
[INFO] [stdout]    |
[INFO] [stdout] 86 |   merfolk_caller.frontend(|f: /* Type */| f.def().unwrap()).unwrap();
[INFO] [stdout]    |                             ++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> test/tests.rs:130:39
[INFO] [stdout]     |
[INFO] [stdout] 130 |   assert_eq!(merfolk_caller.frontend(|f| { f.add(a, b).unwrap() }).unwrap(), a + b);
[INFO] [stdout]     |                                       ^      --- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout] help: consider giving this closure parameter an explicit type
[INFO] [stdout]     |
[INFO] [stdout] 130 |   assert_eq!(merfolk_caller.frontend(|f: /* Type */| { f.add(a, b).unwrap() }).unwrap(), a + b);
[INFO] [stdout]     |                                        ++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `merfolk_backend_in_process`
[INFO] [stdout]   --> test/tests.rs:29:31
[INFO] [stdout]    |
[INFO] [stdout] 29 |     tokio::sync::mpsc::Sender<merfolk_backend_in_process::InProcessChannel>,
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `merfolk_backend_in_process`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `merfolk_backend_in_process`, use `cargo add merfolk_backend_in_process` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `merfolk_backend_in_process`
[INFO] [stdout]   --> test/tests.rs:30:33
[INFO] [stdout]    |
[INFO] [stdout] 30 |     tokio::sync::mpsc::Receiver<merfolk_backend_in_process::InProcessChannel>,
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `merfolk_backend_in_process`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `merfolk_backend_in_process`, use `cargo add merfolk_backend_in_process` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `merfolk_backend_in_process`
[INFO] [stdout]   --> test/tests.rs:70:31
[INFO] [stdout]    |
[INFO] [stdout] 70 |     tokio::sync::mpsc::Sender<merfolk_backend_in_process::InProcessChannel>,
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `merfolk_backend_in_process`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `merfolk_backend_in_process`, use `cargo add merfolk_backend_in_process` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `merfolk_backend_in_process`
[INFO] [stdout]   --> test/tests.rs:71:33
[INFO] [stdout]    |
[INFO] [stdout] 71 |     tokio::sync::mpsc::Receiver<merfolk_backend_in_process::InProcessChannel>,
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `merfolk_backend_in_process`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `merfolk_backend_in_process`, use `cargo add merfolk_backend_in_process` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0282, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `merfolk_frontend_derive` (test "test") due to 13 previous errors
[INFO] running `Command { std: "docker" "inspect" "121f54f4ae06191c0663ad781565694d0f46cd32b2605b0bdbc04ab64973645f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "121f54f4ae06191c0663ad781565694d0f46cd32b2605b0bdbc04ab64973645f", kill_on_drop: false }`
[INFO] [stdout] 121f54f4ae06191c0663ad781565694d0f46cd32b2605b0bdbc04ab64973645f