[INFO] fetching crate cxx 1.0.50...
[INFO] testing cxx-1.0.50 against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] extracting crate cxx 1.0.50 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate cxx 1.0.50 on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cxx 1.0.50
[INFO] finished tweaking crates.io crate cxx 1.0.50
[INFO] tweaked toml for crates.io crate cxx 1.0.50 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3135abcb9c9d09d30edcb83a27cea1d9192fad577a31e604daefabf19d6443a7
[INFO] running `Command { std: "docker" "start" "-a" "3135abcb9c9d09d30edcb83a27cea1d9192fad577a31e604daefabf19d6443a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3135abcb9c9d09d30edcb83a27cea1d9192fad577a31e604daefabf19d6443a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3135abcb9c9d09d30edcb83a27cea1d9192fad577a31e604daefabf19d6443a7", kill_on_drop: false }`
[INFO] [stdout] 3135abcb9c9d09d30edcb83a27cea1d9192fad577a31e604daefabf19d6443a7
[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=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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d996c13132181e989f3d9fc0651897c9f4241acb240d20614153b4a8d3b5d65e
[INFO] running `Command { std: "docker" "start" "-a" "d996c13132181e989f3d9fc0651897c9f4241acb240d20614153b4a8d3b5d65e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling cxxbridge-flags v1.0.50
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling link-cplusplus v1.0.5
[INFO] [stderr]    Compiling cxx v1.0.50 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling cxxbridge-macro v1.0.50
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.81s
[INFO] running `Command { std: "docker" "inspect" "d996c13132181e989f3d9fc0651897c9f4241acb240d20614153b4a8d3b5d65e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d996c13132181e989f3d9fc0651897c9f4241acb240d20614153b4a8d3b5d65e", kill_on_drop: false }`
[INFO] [stdout] d996c13132181e989f3d9fc0651897c9f4241acb240d20614153b4a8d3b5d65e
[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=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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 19635f2cef374294bcac3547f3af9a652bf3901cd02f1eaf5c7b9971d0344f57
[INFO] running `Command { std: "docker" "start" "-a" "19635f2cef374294bcac3547f3af9a652bf3901cd02f1eaf5c7b9971d0344f57", kill_on_drop: false }`
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling scratch v1.0.0
[INFO] [stderr]    Compiling trybuild v1.0.43
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling rustversion v1.0.5
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling dissimilar v1.0.2
[INFO] [stderr]    Compiling cxx-test-suite v0.0.0
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]    Compiling cxx-gen v0.7.50
[INFO] [stderr] error: could not compile `cxx-test-suite` due to 2 previous errors
[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] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "19635f2cef374294bcac3547f3af9a652bf3901cd02f1eaf5c7b9971d0344f57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19635f2cef374294bcac3547f3af9a652bf3901cd02f1eaf5c7b9971d0344f57", kill_on_drop: false }`
[INFO] [stdout] 19635f2cef374294bcac3547f3af9a652bf3901cd02f1eaf5c7b9971d0344f57