[INFO] fetching crate syn 1.0.44...
[INFO] testing syn-1.0.44 against 1.47.0 for beta-1.48-1
[INFO] extracting crate syn 1.0.44 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate syn 1.0.44 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate syn 1.0.44
[INFO] finished tweaking crates.io crate syn 1.0.44
[INFO] tweaked toml for crates.io crate syn 1.0.44 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded syn-test-suite v0.0.0+test
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5b4eb25a3d658c8da1b99248bac024fd7eebd8ea8fab7355dce762a4d79a0325
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "5b4eb25a3d658c8da1b99248bac024fd7eebd8ea8fab7355dce762a4d79a0325", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b4eb25a3d658c8da1b99248bac024fd7eebd8ea8fab7355dce762a4d79a0325", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b4eb25a3d658c8da1b99248bac024fd7eebd8ea8fab7355dce762a4d79a0325", kill_on_drop: false }`
[INFO] [stdout] 5b4eb25a3d658c8da1b99248bac024fd7eebd8ea8fab7355dce762a4d79a0325
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 107e75192e23716c214a23dba47d97f1a6f7ef2fa4515cc899ce47be28fbc6f3
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "107e75192e23716c214a23dba47d97f1a6f7ef2fa4515cc899ce47be28fbc6f3", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.44 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.62s
[INFO] running `Command { std: "docker" "inspect" "107e75192e23716c214a23dba47d97f1a6f7ef2fa4515cc899ce47be28fbc6f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "107e75192e23716c214a23dba47d97f1a6f7ef2fa4515cc899ce47be28fbc6f3", kill_on_drop: false }`
[INFO] [stdout] 107e75192e23716c214a23dba47d97f1a6f7ef2fa4515cc899ce47be28fbc6f3
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 10cdbe3a7522002e33fc95042d09a0d1b4dc34d423fb63a90754981fe66dfac0
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "10cdbe3a7522002e33fc95042d09a0d1b4dc34d423fb63a90754981fe66dfac0", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.44
[INFO] [stderr]    Compiling syn-test-suite v0.0.0+test
[INFO] [stderr]    Compiling futures-channel v0.3.6
[INFO] [stderr] error: could not compile `syn-test-suite`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: expected item, found `@`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-test-suite-0.0.0+test/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: build failed
[INFO] running `Command { std: "docker" "inspect" "10cdbe3a7522002e33fc95042d09a0d1b4dc34d423fb63a90754981fe66dfac0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10cdbe3a7522002e33fc95042d09a0d1b4dc34d423fb63a90754981fe66dfac0", kill_on_drop: false }`
[INFO] [stdout] 10cdbe3a7522002e33fc95042d09a0d1b4dc34d423fb63a90754981fe66dfac0
