[INFO] fetching crate rustspec 0.1.16...
[INFO] documenting rustspec-0.1.16 against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] extracting crate rustspec 0.1.16 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate rustspec 0.1.16 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rustspec 0.1.16
[INFO] finished tweaking crates.io crate rustspec 0.1.16
[INFO] tweaked toml for crates.io crate rustspec 0.1.16 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rustspec_assertions v0.1.9
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0ee505ff4aaaf5190ffacffdae2dff7f978b727de7ea1c59034318dc1aee0e9e
[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" "0ee505ff4aaaf5190ffacffdae2dff7f978b727de7ea1c59034318dc1aee0e9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0ee505ff4aaaf5190ffacffdae2dff7f978b727de7ea1c59034318dc1aee0e9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ee505ff4aaaf5190ffacffdae2dff7f978b727de7ea1c59034318dc1aee0e9e", kill_on_drop: false }`
[INFO] [stdout] 0ee505ff4aaaf5190ffacffdae2dff7f978b727de7ea1c59034318dc1aee0e9e
[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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8bb1b91aaa2f15ba1e8987e3f6f8438741ec9a8f650148e7d4ba847b806fb8ca
[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" "8bb1b91aaa2f15ba1e8987e3f6f8438741ec9a8f650148e7d4ba847b806fb8ca", kill_on_drop: false }`
[INFO] [stderr]     Checking rustspec_assertions v0.1.9
[INFO] [stdout] error[E0463]: can't find crate for `syntax`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustspec_assertions-0.1.9/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 `rustspec_assertions` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "8bb1b91aaa2f15ba1e8987e3f6f8438741ec9a8f650148e7d4ba847b806fb8ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8bb1b91aaa2f15ba1e8987e3f6f8438741ec9a8f650148e7d4ba847b806fb8ca", kill_on_drop: false }`
[INFO] [stdout] 8bb1b91aaa2f15ba1e8987e3f6f8438741ec9a8f650148e7d4ba847b806fb8ca
