[INFO] fetching crate cxx 1.0.7...
[INFO] checking cxx-1.0.7 against try#b2f80f6008cdafc35b4472bd46afa16cc6b0cd63 for pr-79470
[INFO] extracting crate cxx 1.0.7 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate cxx 1.0.7 on toolchain b2f80f6008cdafc35b4472bd46afa16cc6b0cd63
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cxx 1.0.7
[INFO] finished tweaking crates.io crate cxx 1.0.7
[INFO] tweaked toml for crates.io crate cxx 1.0.7 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cxxbridge-flags v1.0.7
[INFO] [stderr]   Downloaded cxx-test-suite v0.0.0
[INFO] [stderr]   Downloaded cxx-build v1.0.7
[INFO] [stderr]   Downloaded cxxbridge-macro v1.0.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7ce4e09fb82bb052a405cd37a77d2c13e00fe1f159913d1e657b4f6ee73634c2
[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" "7ce4e09fb82bb052a405cd37a77d2c13e00fe1f159913d1e657b4f6ee73634c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7ce4e09fb82bb052a405cd37a77d2c13e00fe1f159913d1e657b4f6ee73634c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ce4e09fb82bb052a405cd37a77d2c13e00fe1f159913d1e657b4f6ee73634c2", kill_on_drop: false }`
[INFO] [stdout] 7ce4e09fb82bb052a405cd37a77d2c13e00fe1f159913d1e657b4f6ee73634c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bed4dac86e3225e0a93ad1dcbab6e867b689bf9bdd3fbe6babfe153ee6fdd3b3
[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" "bed4dac86e3225e0a93ad1dcbab6e867b689bf9bdd3fbe6babfe153ee6fdd3b3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]    Compiling scratch v1.0.0
[INFO] [stderr]    Compiling cxxbridge-flags v1.0.7
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking cc v1.0.66
[INFO] [stderr]    Compiling rustversion v1.0.4
[INFO] [stderr]    Compiling trybuild v1.0.35
[INFO] [stderr]     Checking dissimilar v1.0.2
[INFO] [stderr]     Checking cxx-test-suite v0.0.0
[INFO] [stderr]    Compiling link-cplusplus v1.0.4
[INFO] [stdout] error: expected item, found `@`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/cxx-test-suite-0.0.0/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | @
[INFO] [stdout]   | ^ expected item
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cxx-test-suite`
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[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] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "bed4dac86e3225e0a93ad1dcbab6e867b689bf9bdd3fbe6babfe153ee6fdd3b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bed4dac86e3225e0a93ad1dcbab6e867b689bf9bdd3fbe6babfe153ee6fdd3b3", kill_on_drop: false }`
[INFO] [stdout] bed4dac86e3225e0a93ad1dcbab6e867b689bf9bdd3fbe6babfe153ee6fdd3b3