[INFO] fetching crate syn-test-suite 0.0.0+test...
[INFO] building syn-test-suite-0.0.0+test against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] extracting crate syn-test-suite 0.0.0+test into /workspace/builds/worker-4-tc1/source
[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-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate syn-test-suite 0.0.0+test 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] 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] 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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e24dd0a9d8b1070567bbc954678ebd59c7ddbf279186894f995cf55b6c3c027b
[INFO] running `Command { std: "docker" "start" "-a" "e24dd0a9d8b1070567bbc954678ebd59c7ddbf279186894f995cf55b6c3c027b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e24dd0a9d8b1070567bbc954678ebd59c7ddbf279186894f995cf55b6c3c027b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e24dd0a9d8b1070567bbc954678ebd59c7ddbf279186894f995cf55b6c3c027b", kill_on_drop: false }`
[INFO] [stdout] e24dd0a9d8b1070567bbc954678ebd59c7ddbf279186894f995cf55b6c3c027b
[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=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] 8f1bde757298aa723d0d436184cd47a045c8de369ee24950a00ce8de8cd7cb2d
[INFO] running `Command { std: "docker" "start" "-a" "8f1bde757298aa723d0d436184cd47a045c8de369ee24950a00ce8de8cd7cb2d", 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]   = note: for a full list of items that can appear in modules, see <https://doc.rust-lang.org/reference/items.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `syn-test-suite` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "8f1bde757298aa723d0d436184cd47a045c8de369ee24950a00ce8de8cd7cb2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f1bde757298aa723d0d436184cd47a045c8de369ee24950a00ce8de8cd7cb2d", kill_on_drop: false }`
[INFO] [stdout] 8f1bde757298aa723d0d436184cd47a045c8de369ee24950a00ce8de8cd7cb2d