[INFO] fetching crate syn-test-suite 0.0.0+test...
[INFO] testing syn-test-suite-0.0.0+test against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate syn-test-suite 0.0.0+test into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate syn-test-suite 0.0.0+test on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate syn-test-suite 0.0.0+test
[INFO] finished tweaking crates.io crate syn-test-suite 0.0.0+test
[INFO] tweaked toml for crates.io crate syn-test-suite 0.0.0+test written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7e4858ea3665f5e18a386b39767df19cadf8728ebae11394e68cb4b897d09281
[INFO] running `Command { std: "docker" "start" "-a" "7e4858ea3665f5e18a386b39767df19cadf8728ebae11394e68cb4b897d09281", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7e4858ea3665f5e18a386b39767df19cadf8728ebae11394e68cb4b897d09281", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e4858ea3665f5e18a386b39767df19cadf8728ebae11394e68cb4b897d09281", kill_on_drop: false }`
[INFO] [stdout] 7e4858ea3665f5e18a386b39767df19cadf8728ebae11394e68cb4b897d09281
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bc74a7016f3c77bd0983f4b48da6c757fcd3fc2fef7135dac2df6ac711563383
[INFO] running `Command { std: "docker" "start" "-a" "bc74a7016f3c77bd0983f4b48da6c757fcd3fc2fef7135dac2df6ac711563383", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn-test-suite v0.0.0+test (/opt/rustwide/workdir)
[INFO] [stdout] error: expected item, found `@`
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | @
[INFO] [stdout]   | ^ expected item
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `syn-test-suite` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "bc74a7016f3c77bd0983f4b48da6c757fcd3fc2fef7135dac2df6ac711563383", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc74a7016f3c77bd0983f4b48da6c757fcd3fc2fef7135dac2df6ac711563383", kill_on_drop: false }`
[INFO] [stdout] bc74a7016f3c77bd0983f4b48da6c757fcd3fc2fef7135dac2df6ac711563383