[INFO] fetching crate merfolk_backend_serialport 0.1.0...
[INFO] testing merfolk_backend_serialport-0.1.0 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-8
[INFO] extracting crate merfolk_backend_serialport 0.1.0 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate merfolk_backend_serialport 0.1.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate merfolk_backend_serialport 0.1.0
[INFO] tweaked toml for crates.io crate merfolk_backend_serialport 0.1.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate merfolk_backend_serialport 0.1.0 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 62 packages to latest compatible versions
[INFO] [stderr]       Adding core-foundation v0.10.0 (available: v0.10.1)
[INFO] [stderr]       Adding derive_builder v0.10.2 (available: v0.20.2)
[INFO] [stderr]       Adding quote v1.0.40 (available: v1.0.42)
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[INFO] [stderr]       Adding ron v0.6.6 (available: v0.12.0)
[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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mach2 v0.4.3
[INFO] [stderr]   Downloaded ron v0.6.6
[INFO] [stderr]   Downloaded darling_macro v0.12.4
[INFO] [stderr]   Downloaded unescaper v0.1.6
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[INFO] [stderr]   Downloaded derive_builder_core v0.10.2
[INFO] [stderr]   Downloaded spin v0.7.1
[INFO] [stderr]   Downloaded darling_core v0.12.4
[INFO] [stderr]   Downloaded darling v0.12.4
[INFO] [stderr]   Downloaded serialport v4.8.1
[INFO] [stderr]   Downloaded derive_builder v0.10.2
[INFO] [stderr]   Downloaded merfolk v0.1.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 10b6981078e302cc3f59525a8468ca5f9ec29b58aa515b7b0740de3dc803e44c
[INFO] running `Command { std: "docker" "start" "-a" "10b6981078e302cc3f59525a8468ca5f9ec29b58aa515b7b0740de3dc803e44c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "10b6981078e302cc3f59525a8468ca5f9ec29b58aa515b7b0740de3dc803e44c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10b6981078e302cc3f59525a8468ca5f9ec29b58aa515b7b0740de3dc803e44c", kill_on_drop: false }`
[INFO] [stdout] 10b6981078e302cc3f59525a8468ca5f9ec29b58aa515b7b0740de3dc803e44c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5ff26a7433ea1b62ca3374e4ba27807e4fe118d9a26743399396ec4864e9289f
[INFO] running `Command { std: "docker" "start" "-a" "5ff26a7433ea1b62ca3374e4ba27807e4fe118d9a26743399396ec4864e9289f", kill_on_drop: false }`
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[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling ident_case v1.0.1
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[INFO] [stderr]    Compiling bitflags v2.10.0
[INFO] [stderr]    Compiling spin v0.7.1
[INFO] [stderr]    Compiling base64 v0.13.1
[INFO] [stderr]    Compiling tokio v1.48.0
[INFO] [stderr]    Compiling nix v0.26.4
[INFO] [stderr]    Compiling syn v2.0.110
[INFO] [stderr]    Compiling libudev v0.3.0
[INFO] [stderr]    Compiling thiserror-impl v2.0.17
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling darling_core v0.12.4
[INFO] [stderr]    Compiling thiserror v2.0.17
[INFO] [stderr]    Compiling unescaper v0.1.6
[INFO] [stderr]    Compiling serialport v4.8.1
[INFO] [stderr]    Compiling darling_macro v0.12.4
[INFO] [stderr]    Compiling darling v0.12.4
[INFO] [stderr]    Compiling derive_builder_core v0.10.2
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[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling merfolk v0.1.4
[INFO] [stderr]    Compiling ron v0.6.6
[INFO] [stderr]    Compiling merfolk_backend_serialport v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.07s
[INFO] running `Command { std: "docker" "inspect" "5ff26a7433ea1b62ca3374e4ba27807e4fe118d9a26743399396ec4864e9289f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ff26a7433ea1b62ca3374e4ba27807e4fe118d9a26743399396ec4864e9289f", kill_on_drop: false }`
[INFO] [stdout] 5ff26a7433ea1b62ca3374e4ba27807e4fe118d9a26743399396ec4864e9289f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d7ba459c64c908c35f52aab67664a119867a47b245aa4d6322c4ba0c115b0d20
[INFO] running `Command { std: "docker" "start" "-a" "d7ba459c64c908c35f52aab67664a119867a47b245aa4d6322c4ba0c115b0d20", kill_on_drop: false }`
[INFO] [stderr]    Compiling merfolk_backend_serialport v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `merfolk_frontend_register`
[INFO] [stdout]    --> test/tests.rs:153:25
[INFO] [stdout]     |
[INFO] [stdout] 153 |   let register_caller = 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 `crate::Error::Register` and 1 other; try using the variant's enum
[INFO] [stdout]     |
[INFO] [stdout] 153 -   let register_caller = merfolk_frontend_register::Register::builder().build().unwrap();
[INFO] [stdout] 153 +   let register_caller = crate::Error::builder().build().unwrap();
[INFO] [stdout]     |
[INFO] [stdout] 153 -   let register_caller = merfolk_frontend_register::Register::builder().build().unwrap();
[INFO] [stdout] 153 +   let register_caller = merfolk::Error::builder().build().unwrap();
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `merfolk_frontend_register`
[INFO] [stdout]    --> test/tests.rs:154:27
[INFO] [stdout]     |
[INFO] [stdout] 154 |   let register_receiver = 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 `crate::Error::Register` and 1 other; try using the variant's enum
[INFO] [stdout]     |
[INFO] [stdout] 154 -   let register_receiver = merfolk_frontend_register::Register::builder().build().unwrap();
[INFO] [stdout] 154 +   let register_receiver = crate::Error::builder().build().unwrap();
[INFO] [stdout]     |
[INFO] [stdout] 154 -   let register_receiver = merfolk_frontend_register::Register::builder().build().unwrap();
[INFO] [stdout] 154 +   let register_receiver = merfolk::Error::builder().build().unwrap();
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `armv7`
[INFO] [stdout]  --> test/tests.rs:1:21
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[cfg(all(unix, not(target_arch = "armv7")))]
[INFO] [stdout]   |                     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: expected values for `target_arch` are: `aarch64`, `amdgpu`, `arm`, `arm64ec`, `avr`, `bpf`, `csky`, `hexagon`, `loongarch32`, `loongarch64`, `m68k`, `mips`, `mips32r6`, `mips64`, `mips64r6`, `msp430`, `nvptx64`, `powerpc`, `powerpc64`, `riscv32`, `riscv64`, `s390x`, `sparc`, `sparc64`, `wasm32`, `wasm64`, `x86`, `x86_64`, and `xtensa`
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `armv7`
[INFO] [stdout]  --> test/tests.rs:4:21
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[cfg(all(unix, not(target_arch = "armv7")))]
[INFO] [stdout]   |                     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: expected values for `target_arch` are: `aarch64`, `amdgpu`, `arm`, `arm64ec`, `avr`, `bpf`, `csky`, `hexagon`, `loongarch32`, `loongarch64`, `m68k`, `mips`, `mips32r6`, `mips64`, `mips64r6`, `msp430`, `nvptx64`, `powerpc`, `powerpc64`, `riscv32`, `riscv64`, `s390x`, `sparc`, `sparc64`, `wasm32`, `wasm64`, `x86`, `x86_64`, and `xtensa`
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `armv7`
[INFO] [stdout]    --> test/tests.rs:151:21
[INFO] [stdout]     |
[INFO] [stdout] 151 | #[cfg(all(unix, not(target_arch = "armv7")))]
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `target_arch` are: `aarch64`, `amdgpu`, `arm`, `arm64ec`, `avr`, `bpf`, `csky`, `hexagon`, `loongarch32`, `loongarch64`, `m68k`, `mips`, `mips32r6`, `mips64`, `mips64r6`, `msp430`, `nvptx64`, `powerpc`, `powerpc64`, `riscv32`, `riscv64`, `s390x`, `sparc`, `sparc64`, `wasm32`, `wasm64`, `x86`, `x86_64`, and `xtensa`
[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] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> test/tests.rs:183:46
[INFO] [stdout]     |
[INFO] [stdout] 183 |   let result: i32 = merfolk_caller.frontend(|f| f.call("add", &(a, b)).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] 183 |   let result: i32 = merfolk_caller.frontend(|f: /* Type */| f.call("add", &(a, b)).unwrap()).unwrap();
[INFO] [stdout]     |                                               ++++++++++++
[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_backend_serialport` (test "test") due to 3 previous errors; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "d7ba459c64c908c35f52aab67664a119867a47b245aa4d6322c4ba0c115b0d20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7ba459c64c908c35f52aab67664a119867a47b245aa4d6322c4ba0c115b0d20", kill_on_drop: false }`
[INFO] [stdout] d7ba459c64c908c35f52aab67664a119867a47b245aa4d6322c4ba0c115b0d20
