[INFO] fetching crate ark-api-macros 0.13.0...
[INFO] checking ark-api-macros-0.13.0 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate ark-api-macros 0.13.0 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate ark-api-macros 0.13.0
[INFO] finished tweaking crates.io crate ark-api-macros 0.13.0
[INFO] tweaked toml for crates.io crate ark-api-macros 0.13.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate ark-api-macros 0.13.0 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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]      Locking 4 packages to latest compatible versions
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.104)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 94a11ed3ed401967dd3c59f251b14d778c7b8039fb5a8cd72a55a36cf8ef647f
[INFO] running `Command { std: "docker" "start" "-a" "94a11ed3ed401967dd3c59f251b14d778c7b8039fb5a8cd72a55a36cf8ef647f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "94a11ed3ed401967dd3c59f251b14d778c7b8039fb5a8cd72a55a36cf8ef647f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94a11ed3ed401967dd3c59f251b14d778c7b8039fb5a8cd72a55a36cf8ef647f", kill_on_drop: false }`
[INFO] [stdout] 94a11ed3ed401967dd3c59f251b14d778c7b8039fb5a8cd72a55a36cf8ef647f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 712c40214f913bf7137a360f9fb02880e3da8cebc47bf412d8f5ceb1e8dfea72
[INFO] running `Command { std: "docker" "start" "-a" "712c40214f913bf7137a360f9fb02880e3da8cebc47bf412d8f5ceb1e8dfea72", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking quote v1.0.40
[INFO] [stderr]     Checking ark-api-macros v0.13.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Args` is never constructed
[INFO] [stdout]   --> src/host_exports.rs:93:12
[INFO] [stdout]    |
[INFO] [stdout] 93 | pub struct Args;
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Nothing` is never constructed
[INFO] [stdout]    --> src/host_exports.rs:105:12
[INFO] [stdout]     |
[INFO] [stdout] 105 | pub struct Nothing;
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/test.rs:127:17
[INFO] [stdout]     |
[INFO] [stdout] 127 |     WithMessage(LitStr),
[INFO] [stdout]     |     ----------- ^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 127 -     WithMessage(LitStr),
[INFO] [stdout] 127 +     WithMessage(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Args` is never constructed
[INFO] [stdout]   --> src/host_exports.rs:93:12
[INFO] [stdout]    |
[INFO] [stdout] 93 | pub struct Args;
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Nothing` is never constructed
[INFO] [stdout]    --> src/host_exports.rs:105:12
[INFO] [stdout]     |
[INFO] [stdout] 105 | pub struct Nothing;
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/test.rs:127:17
[INFO] [stdout]     |
[INFO] [stdout] 127 |     WithMessage(LitStr),
[INFO] [stdout]     |     ----------- ^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 127 -     WithMessage(LitStr),
[INFO] [stdout] 127 +     WithMessage(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Args` is never constructed
[INFO] [stdout]   --> src/host_exports.rs:93:12
[INFO] [stdout]    |
[INFO] [stdout] 93 | pub struct Args;
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Nothing` is never constructed
[INFO] [stdout]    --> src/host_exports.rs:105:12
[INFO] [stdout]     |
[INFO] [stdout] 105 | pub struct Nothing;
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/test.rs:127:17
[INFO] [stdout]     |
[INFO] [stdout] 127 |     WithMessage(LitStr),
[INFO] [stdout]     |     ----------- ^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 127 -     WithMessage(LitStr),
[INFO] [stdout] 127 +     WithMessage(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `ark_public_api_test`
[INFO] [stdout]  --> tests/public-api.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | ark_public_api_test::public_api_test!("wasm32-unknown-unknown");
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `ark_public_api_test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ark-api-macros` (test "public-api") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "712c40214f913bf7137a360f9fb02880e3da8cebc47bf412d8f5ceb1e8dfea72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "712c40214f913bf7137a360f9fb02880e3da8cebc47bf412d8f5ceb1e8dfea72", kill_on_drop: false }`
[INFO] [stdout] 712c40214f913bf7137a360f9fb02880e3da8cebc47bf412d8f5ceb1e8dfea72