[INFO] fetching crate webplatform_concat_bytes 0.0.1...
[INFO] testing webplatform_concat_bytes-0.0.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate webplatform_concat_bytes 0.0.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate webplatform_concat_bytes 0.0.1 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate webplatform_concat_bytes 0.0.1
[INFO] finished tweaking crates.io crate webplatform_concat_bytes 0.0.1
[INFO] tweaked toml for crates.io crate webplatform_concat_bytes 0.0.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 617b8ca5c4b82fa86d66f63363e32a9f42ab35947e8a467bf99d005005c769a3
[INFO] running `Command { std: "docker" "start" "-a" "617b8ca5c4b82fa86d66f63363e32a9f42ab35947e8a467bf99d005005c769a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "617b8ca5c4b82fa86d66f63363e32a9f42ab35947e8a467bf99d005005c769a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "617b8ca5c4b82fa86d66f63363e32a9f42ab35947e8a467bf99d005005c769a3", kill_on_drop: false }`
[INFO] [stdout] 617b8ca5c4b82fa86d66f63363e32a9f42ab35947e8a467bf99d005005c769a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 79bbf9b01bb2af0cfbc13c0a17f47fcd54a7ec3c7e39cb3fe0d7d567220b6cb6
[INFO] running `Command { std: "docker" "start" "-a" "79bbf9b01bb2af0cfbc13c0a17f47fcd54a7ec3c7e39cb3fe0d7d567220b6cb6", kill_on_drop: false }`
[INFO] [stderr]    Compiling webplatform_concat_bytes v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0463]: can't find crate for `syntax`
[INFO] [stdout]  --> src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | extern crate syntax;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `webplatform_concat_bytes` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "79bbf9b01bb2af0cfbc13c0a17f47fcd54a7ec3c7e39cb3fe0d7d567220b6cb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79bbf9b01bb2af0cfbc13c0a17f47fcd54a7ec3c7e39cb3fe0d7d567220b6cb6", kill_on_drop: false }`
[INFO] [stdout] 79bbf9b01bb2af0cfbc13c0a17f47fcd54a7ec3c7e39cb3fe0d7d567220b6cb6