[INFO] fetching crate graal-bindgen-macros 0.1.0...
[INFO] testing graal-bindgen-macros-0.1.0 against 1.90.0 for beta-1.91-3
[INFO] extracting crate graal-bindgen-macros 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate graal-bindgen-macros 0.1.0
[INFO] finished tweaking crates.io crate graal-bindgen-macros 0.1.0
[INFO] tweaked toml for crates.io crate graal-bindgen-macros 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate graal-bindgen-macros 0.1.0 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "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" "+1.90.0" "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]      Locking 4 packages to latest compatible versions
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.106)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cf9be23093e2e3d7b8491d16c9178a2df0c7eb6e6f7821e4a543fda7742d0d4f
[INFO] running `Command { std: "docker" "start" "-a" "cf9be23093e2e3d7b8491d16c9178a2df0c7eb6e6f7821e4a543fda7742d0d4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cf9be23093e2e3d7b8491d16c9178a2df0c7eb6e6f7821e4a543fda7742d0d4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf9be23093e2e3d7b8491d16c9178a2df0c7eb6e6f7821e4a543fda7742d0d4f", kill_on_drop: false }`
[INFO] [stdout] cf9be23093e2e3d7b8491d16c9178a2df0c7eb6e6f7821e4a543fda7742d0d4f
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 05260f79fd1f59de8a125062f718ef5b548b74cf711a6209ebd30e7372f7361b
[INFO] running `Command { std: "docker" "start" "-a" "05260f79fd1f59de8a125062f718ef5b548b74cf711a6209ebd30e7372f7361b", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling graal-bindgen-macros v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0603]: module `group` is private
[INFO] [stdout]    --> src/lib.rs:31:29
[INFO] [stdout]     |
[INFO] [stdout]  31 |         let is_array = syn::group::parse_brackets(input).is_ok();
[INFO] [stdout]     |                             ^^^^^  -------------- function `parse_brackets` is not publicly re-exported
[INFO] [stdout]     |                             |
[INFO] [stdout]     |                             private module
[INFO] [stdout]     |
[INFO] [stdout] note: the module `group` is defined here
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-1.0.109/src/lib.rs:308:1
[INFO] [stdout]     |
[INFO] [stdout] 308 | mod group;
[INFO] [stdout]     | ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0603`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `graal-bindgen-macros` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "05260f79fd1f59de8a125062f718ef5b548b74cf711a6209ebd30e7372f7361b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05260f79fd1f59de8a125062f718ef5b548b74cf711a6209ebd30e7372f7361b", kill_on_drop: false }`
[INFO] [stdout] 05260f79fd1f59de8a125062f718ef5b548b74cf711a6209ebd30e7372f7361b