[INFO] fetching crate tokio-cron-scheduler 0.6.0...
[INFO] testing tokio-cron-scheduler-0.6.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate tokio-cron-scheduler 0.6.0 into /workspace/builds/worker-22/source
[INFO] validating manifest of crates.io crate tokio-cron-scheduler 0.6.0 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tokio-cron-scheduler 0.6.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate tokio-cron-scheduler 0.6.0
[INFO] tweaked toml for crates.io crate tokio-cron-scheduler 0.6.0 written to /workspace/builds/worker-22/source/Cargo.toml
[INFO] crate crates.io crate tokio-cron-scheduler 0.6.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tracing-core v0.1.24
[INFO] [stderr]   Downloaded async-task v4.1.0
[INFO] [stderr]   Downloaded prost v0.10.0
[INFO] [stderr]   Downloaded prost-types v0.10.0
[INFO] [stderr]   Downloaded blocking v1.1.0
[INFO] [stderr]   Downloaded ed25519 v1.3.0
[INFO] [stderr]   Downloaded nuid v0.3.2
[INFO] [stderr]   Downloaded signature v1.5.0
[INFO] [stderr]   Downloaded zeroize v1.5.2
[INFO] [stderr]   Downloaded ed25519-dalek v1.0.1
[INFO] [stderr]   Downloaded base64-url v1.4.10
[INFO] [stderr]   Downloaded subtle-encoding v0.5.1
[INFO] [stderr]   Downloaded cron v0.10.0
[INFO] [stderr]   Downloaded curve25519-dalek v3.2.0
[INFO] [stderr]   Downloaded nkeys v0.1.0
[INFO] [stderr]   Downloaded tracing-subscriber v0.3.10
[INFO] [stderr]   Downloaded signatory v0.21.0
[INFO] [stderr]   Downloaded prost-build v0.10.0
[INFO] [stderr]   Downloaded which v4.2.4
[INFO] [stderr]   Downloaded time v0.3.7
[INFO] [stderr]   Downloaded prost-derive v0.10.0
[INFO] [stderr]   Downloaded serde_nanos v0.1.2
[INFO] [stderr]   Downloaded num_threads v0.1.4
[INFO] [stderr]   Downloaded nats v0.18.1
[INFO] [stderr]   Downloaded tokio-openssl v0.6.3
[INFO] [stderr]   Downloaded postgres-openssl v0.5.0
[INFO] [stderr]   Downloaded zeroize_derive v1.3.1
[INFO] [stderr]   Downloaded postgres-native-tls v0.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0614b0ce0bc9dc9b66e99732d23bf6f83711c82274323b1c0c9ba65ca99b9ab8
[INFO] running `Command { std: "docker" "start" "-a" "0614b0ce0bc9dc9b66e99732d23bf6f83711c82274323b1c0c9ba65ca99b9ab8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0614b0ce0bc9dc9b66e99732d23bf6f83711c82274323b1c0c9ba65ca99b9ab8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0614b0ce0bc9dc9b66e99732d23bf6f83711c82274323b1c0c9ba65ca99b9ab8", kill_on_drop: false }`
[INFO] [stdout] 0614b0ce0bc9dc9b66e99732d23bf6f83711c82274323b1c0c9ba65ca99b9ab8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a977666fe7867d5757e230e6dc03faff8c91fff8f80680b17343d3fd03268952
[INFO] running `Command { std: "docker" "start" "-a" "a977666fe7867d5757e230e6dc03faff8c91fff8f80680b17343d3fd03268952", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling anyhow v1.0.53
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling bytes v1.1.0
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling fastrand v1.7.0
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling fixedbitset v0.4.1
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]    Compiling multimap v0.8.3
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling pin-project-lite v0.2.7
[INFO] [stderr]    Compiling once_cell v1.9.0
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling tracing-core v0.1.24
[INFO] [stderr]    Compiling itertools v0.10.3
[INFO] [stderr]    Compiling cmake v0.1.48
[INFO] [stderr]    Compiling nom v7.1.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling which v4.2.4
[INFO] [stderr]    Compiling tempfile v3.3.0
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling prost-build v0.10.0
[INFO] [stderr]    Compiling petgraph v0.6.0
[INFO] [stderr]    Compiling regex v1.5.5
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling cron v0.10.0
[INFO] [stderr]    Compiling prost-derive v0.10.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.20
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]    Compiling tokio v1.17.0
[INFO] [stderr]    Compiling tracing v0.1.32
[INFO] [stderr]    Compiling prost v0.10.0
[INFO] [stderr]    Compiling prost-types v0.10.0
[INFO] [stderr]    Compiling tokio-cron-scheduler v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `tokio-cron-scheduler v0.6.0 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/tokio-cron-scheduler-6217c08a798133e5/build-script-build` (exit status: 1)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   Manifest /opt/rustwide/workdir
[INFO] [stderr]   Out /opt/rustwide/target/debug/build/tokio-cron-scheduler-4aa0bbe21db1e3e6/out
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr]   Error: Custom { kind: Other, error: "protoc failed: Unknown flag: --experimental_allow_proto3_optional\n" }
[INFO] running `Command { std: "docker" "inspect" "a977666fe7867d5757e230e6dc03faff8c91fff8f80680b17343d3fd03268952", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a977666fe7867d5757e230e6dc03faff8c91fff8f80680b17343d3fd03268952", kill_on_drop: false }`
[INFO] [stdout] a977666fe7867d5757e230e6dc03faff8c91fff8f80680b17343d3fd03268952