[INFO] fetching crate merfolk_frontend_duplex 0.1.0...
[INFO] building merfolk_frontend_duplex-0.1.0 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] extracting crate merfolk_frontend_duplex 0.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate merfolk_frontend_duplex 0.1.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate merfolk_frontend_duplex 0.1.0
[INFO] tweaked toml for crates.io crate merfolk_frontend_duplex 0.1.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate merfolk_frontend_duplex 0.1.0 on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 76 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded derive_builder_macro v0.10.2
[INFO] [stderr]   Downloaded spin v0.7.1
[INFO] [stderr]   Downloaded merfolk v0.1.4
[INFO] [stderr]   Downloaded darling_macro v0.12.4
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[INFO] [stderr]   Downloaded derive_builder v0.10.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 370cab81abd7120db920f9391e05510f6161e5275815f0bd74fd80c55aa83bba
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d63b00492bb1aae365c7e969a3260de02649261f1dbc5a9ed6539ae612e6562b
[INFO] running `Command { std: "docker" "start" "-a" "d63b00492bb1aae365c7e969a3260de02649261f1dbc5a9ed6539ae612e6562b", kill_on_drop: false }`
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling spin v0.7.1
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling darling_core v0.12.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[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
[INFO] [stderr]    Compiling merfolk_frontend_duplex v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.44s
[INFO] running `Command { std: "docker" "inspect" "d63b00492bb1aae365c7e969a3260de02649261f1dbc5a9ed6539ae612e6562b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d63b00492bb1aae365c7e969a3260de02649261f1dbc5a9ed6539ae612e6562b", kill_on_drop: false }`
[INFO] [stdout] d63b00492bb1aae365c7e969a3260de02649261f1dbc5a9ed6539ae612e6562b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7884b54190a139a04f00690638336a3a16fa137fafd3901d9041d5a53006ebf2
[INFO] running `Command { std: "docker" "start" "-a" "7884b54190a139a04f00690638336a3a16fa137fafd3901d9041d5a53006ebf2", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling tokio v1.47.1
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling darling_core v0.12.4
[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 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_duplex 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:18:31
[INFO] [stdout]    |
[INFO] [stdout] 18 |   let register_first_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: there is an enum variant `crate::Error::Register` and 1 other; try using the variant's enum
[INFO] [stdout]    |
[INFO] [stdout] 18 -   let register_first_caller = merfolk_frontend_register::Register::builder().build().unwrap();
[INFO] [stdout] 18 +   let register_first_caller = crate::Error::builder().build().unwrap();
[INFO] [stdout]    |
[INFO] [stdout] 18 -   let register_first_caller = merfolk_frontend_register::Register::builder().build().unwrap();
[INFO] [stdout] 18 +   let register_first_caller = merfolk::Error::builder().build().unwrap();
[INFO] [stdout]    |
[INFO] [stdout] help: there is a crate or module with a similar name
[INFO] [stdout]    |
[INFO] [stdout] 18 -   let register_first_caller = merfolk_frontend_register::Register::builder().build().unwrap();
[INFO] [stdout] 18 +   let register_first_caller = merfolk_frontend_duplex::Register::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:19:33
[INFO] [stdout]    |
[INFO] [stdout] 19 |   let register_first_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: there is an enum variant `crate::Error::Register` and 1 other; try using the variant's enum
[INFO] [stdout]    |
[INFO] [stdout] 19 -   let register_first_receiver = merfolk_frontend_register::Register::builder().build().unwrap();
[INFO] [stdout] 19 +   let register_first_receiver = crate::Error::builder().build().unwrap();
[INFO] [stdout]    |
[INFO] [stdout] 19 -   let register_first_receiver = merfolk_frontend_register::Register::builder().build().unwrap();
[INFO] [stdout] 19 +   let register_first_receiver = merfolk::Error::builder().build().unwrap();
[INFO] [stdout]    |
[INFO] [stdout] help: there is a crate or module with a similar name
[INFO] [stdout]    |
[INFO] [stdout] 19 -   let register_first_receiver = merfolk_frontend_register::Register::builder().build().unwrap();
[INFO] [stdout] 19 +   let register_first_receiver = merfolk_frontend_duplex::Register::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:24:32
[INFO] [stdout]    |
[INFO] [stdout] 24 |   let register_second_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: there is an enum variant `crate::Error::Register` and 1 other; try using the variant's enum
[INFO] [stdout]    |
[INFO] [stdout] 24 -   let register_second_caller = merfolk_frontend_register::Register::builder().build().unwrap();
[INFO] [stdout] 24 +   let register_second_caller = crate::Error::builder().build().unwrap();
[INFO] [stdout]    |
[INFO] [stdout] 24 -   let register_second_caller = merfolk_frontend_register::Register::builder().build().unwrap();
[INFO] [stdout] 24 +   let register_second_caller = merfolk::Error::builder().build().unwrap();
[INFO] [stdout]    |
[INFO] [stdout] help: there is a crate or module with a similar name
[INFO] [stdout]    |
[INFO] [stdout] 24 -   let register_second_caller = merfolk_frontend_register::Register::builder().build().unwrap();
[INFO] [stdout] 24 +   let register_second_caller = merfolk_frontend_duplex::Register::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:25:34
[INFO] [stdout]    |
[INFO] [stdout] 25 |   let register_second_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: there is an enum variant `crate::Error::Register` and 1 other; try using the variant's enum
[INFO] [stdout]    |
[INFO] [stdout] 25 -   let register_second_receiver = merfolk_frontend_register::Register::builder().build().unwrap();
[INFO] [stdout] 25 +   let register_second_receiver = crate::Error::builder().build().unwrap();
[INFO] [stdout]    |
[INFO] [stdout] 25 -   let register_second_receiver = merfolk_frontend_register::Register::builder().build().unwrap();
[INFO] [stdout] 25 +   let register_second_receiver = merfolk::Error::builder().build().unwrap();
[INFO] [stdout]    |
[INFO] [stdout] help: there is a crate or module with a similar name
[INFO] [stdout]    |
[INFO] [stdout] 25 -   let register_second_receiver = merfolk_frontend_register::Register::builder().build().unwrap();
[INFO] [stdout] 25 +   let register_second_receiver = merfolk_frontend_duplex::Register::builder().build().unwrap();
[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:34:14
[INFO] [stdout]    |
[INFO] [stdout] 34 |     .backend(merfolk_backend_in_process::InProcess::builder().to(to_first).from(from_second).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().to(to_second).from(from_first).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:30:39
[INFO] [stdout]    |
[INFO] [stdout] 30 | ...m_first): (Sender<merfolk_backend_in_process::InProcessChannel>, Receiver<merfolk_backend_in_process::InProcessChannel>) = mpsc::chann...
[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] [stderr] error: could not compile `merfolk_frontend_duplex` (test "test") due to 10 previous errors
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `merfolk_backend_in_process`
[INFO] [stdout]   --> test/tests.rs:30:95
[INFO] [stdout]    |
[INFO] [stdout] 30 | ...hannel>, Receiver<merfolk_backend_in_process::InProcessChannel>) = mpsc::channel(1);
[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] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `merfolk_backend_in_process`
[INFO] [stdout]   --> test/tests.rs:31:41
[INFO] [stdout]    |
[INFO] [stdout] 31 | ..._second): (Sender<merfolk_backend_in_process::InProcessChannel>, Receiver<merfolk_backend_in_process::InProcessChannel>) = mpsc::chann...
[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:31:97
[INFO] [stdout]    |
[INFO] [stdout] 31 | ...hannel>, Receiver<merfolk_backend_in_process::InProcessChannel>) = mpsc::channel(1);
[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] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7884b54190a139a04f00690638336a3a16fa137fafd3901d9041d5a53006ebf2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7884b54190a139a04f00690638336a3a16fa137fafd3901d9041d5a53006ebf2", kill_on_drop: false }`
[INFO] [stdout] 7884b54190a139a04f00690638336a3a16fa137fafd3901d9041d5a53006ebf2