[INFO] cloning repository https://github.com/ivlevdenis/rust_qt_qml
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ivlevdenis/rust_qt_qml" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fivlevdenis%2Frust_qt_qml", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fivlevdenis%2Frust_qt_qml'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3af1c958a1195e392d214a8da2e8367600c18dec
[INFO] checking ivlevdenis/rust_qt_qml against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fivlevdenis%2Frust_qt_qml" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ivlevdenis/rust_qt_qml on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ivlevdenis/rust_qt_qml
[INFO] finished tweaking git repo https://github.com/ivlevdenis/rust_qt_qml
[INFO] tweaked toml for git repo https://github.com/ivlevdenis/rust_qt_qml written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/ivlevdenis/rust_qt_qml already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/google/rustcxx.git`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6a5fae9a3a98da3d1075fd3c83fa3bca015dd050abb95318d7b3b8ce87527431
[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" "6a5fae9a3a98da3d1075fd3c83fa3bca015dd050abb95318d7b3b8ce87527431", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6a5fae9a3a98da3d1075fd3c83fa3bca015dd050abb95318d7b3b8ce87527431", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a5fae9a3a98da3d1075fd3c83fa3bca015dd050abb95318d7b3b8ce87527431", kill_on_drop: false }`
[INFO] [stdout] 6a5fae9a3a98da3d1075fd3c83fa3bca015dd050abb95318d7b3b8ce87527431
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "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" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0fa415116e973809db8baa6b925d7a7a2a88cb747545d10ac8343cf9e8e795cd
[INFO] running `Command { std: "docker" "start" "-a" "0fa415116e973809db8baa6b925d7a7a2a88cb747545d10ac8343cf9e8e795cd", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustcxx_common v0.1.0 (https://github.com/google/rustcxx.git#7a662d8c)
[INFO] [stdout] error[E0463]: can't find crate for `syntax`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/rustcxx-688d089645a4aea5/7a662d8/common/lib.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | 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 `rustcxx_common`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "0fa415116e973809db8baa6b925d7a7a2a88cb747545d10ac8343cf9e8e795cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0fa415116e973809db8baa6b925d7a7a2a88cb747545d10ac8343cf9e8e795cd", kill_on_drop: false }`
[INFO] [stdout] 0fa415116e973809db8baa6b925d7a7a2a88cb747545d10ac8343cf9e8e795cd