[INFO] fetching crate cxx-symbols 0.4.3...
[INFO] testing cxx-symbols-0.4.3 against 1.55.0 for beta-1.56-1
[INFO] extracting crate cxx-symbols 0.4.3 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate cxx-symbols 0.4.3 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cxx-symbols 0.4.3
[INFO] finished tweaking crates.io crate cxx-symbols 0.4.3
[INFO] tweaked toml for crates.io crate cxx-symbols 0.4.3 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8b188a3c9fbe6f094b55f249c52870fd0a79a2cf26468aa47d086aa8ff85f19a
[INFO] running `Command { std: "docker" "start" "-a" "8b188a3c9fbe6f094b55f249c52870fd0a79a2cf26468aa47d086aa8ff85f19a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8b188a3c9fbe6f094b55f249c52870fd0a79a2cf26468aa47d086aa8ff85f19a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b188a3c9fbe6f094b55f249c52870fd0a79a2cf26468aa47d086aa8ff85f19a", kill_on_drop: false }`
[INFO] [stdout] 8b188a3c9fbe6f094b55f249c52870fd0a79a2cf26468aa47d086aa8ff85f19a
[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=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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3b1a762d34cc21e78dd486316ac27309c252c7714f50d1ac8f7b6a9e2a976306
[INFO] running `Command { std: "docker" "start" "-a" "3b1a762d34cc21e78dd486316ac27309c252c7714f50d1ac8f7b6a9e2a976306", kill_on_drop: false }`
[INFO] [stderr]    Compiling cxx-symbols v0.4.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.94s
[INFO] running `Command { std: "docker" "inspect" "3b1a762d34cc21e78dd486316ac27309c252c7714f50d1ac8f7b6a9e2a976306", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b1a762d34cc21e78dd486316ac27309c252c7714f50d1ac8f7b6a9e2a976306", kill_on_drop: false }`
[INFO] [stdout] 3b1a762d34cc21e78dd486316ac27309c252c7714f50d1ac8f7b6a9e2a976306
[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=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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0a30fcd2c52c8988d75bb314e64ef38478ccb2b6c34a4f4b2312aaf55920b77c
[INFO] running `Command { std: "docker" "start" "-a" "0a30fcd2c52c8988d75bb314e64ef38478ccb2b6c34a4f4b2312aaf55920b77c", kill_on_drop: false }`
[INFO] [stderr]    Compiling cxx-symbols v0.4.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `Command { std: "docker" "inspect" "0a30fcd2c52c8988d75bb314e64ef38478ccb2b6c34a4f4b2312aaf55920b77c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a30fcd2c52c8988d75bb314e64ef38478ccb2b6c34a4f4b2312aaf55920b77c", kill_on_drop: false }`
[INFO] [stdout] 0a30fcd2c52c8988d75bb314e64ef38478ccb2b6c34a4f4b2312aaf55920b77c
[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=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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ccf6044d0370e71e87fd1652a79aa325875878fc06837c85370baa40e832d457
[INFO] running `Command { std: "docker" "start" "-a" "ccf6044d0370e71e87fd1652a79aa325875878fc06837c85370baa40e832d457", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/symbols-a88f2c58286c7927)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests symbols
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ccf6044d0370e71e87fd1652a79aa325875878fc06837c85370baa40e832d457", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ccf6044d0370e71e87fd1652a79aa325875878fc06837c85370baa40e832d457", kill_on_drop: false }`
[INFO] [stdout] ccf6044d0370e71e87fd1652a79aa325875878fc06837c85370baa40e832d457