[INFO] fetching crate matchbox_protocol 0.12.0...
[INFO] testing matchbox_protocol-0.12.0 against 1.90.0 for beta-1.91-3
[INFO] extracting crate matchbox_protocol 0.12.0 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate matchbox_protocol 0.12.0
[INFO] finished tweaking crates.io crate matchbox_protocol 0.12.0
[INFO] tweaked toml for crates.io crate matchbox_protocol 0.12.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate matchbox_protocol 0.12.0 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate matchbox_protocol 0.12.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fce0ddf0feb432554eb2919cca28b7d9c0768124116c29db58faa2ab6a2a9c49
[INFO] running `Command { std: "docker" "start" "-a" "fce0ddf0feb432554eb2919cca28b7d9c0768124116c29db58faa2ab6a2a9c49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fce0ddf0feb432554eb2919cca28b7d9c0768124116c29db58faa2ab6a2a9c49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fce0ddf0feb432554eb2919cca28b7d9c0768124116c29db58faa2ab6a2a9c49", kill_on_drop: false }`
[INFO] [stdout] fce0ddf0feb432554eb2919cca28b7d9c0768124116c29db58faa2ab6a2a9c49
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ffc1d7757900909c32decfd21b465a7513366def600d3b8617b7003e0cb37931
[INFO] running `Command { std: "docker" "start" "-a" "ffc1d7757900909c32decfd21b465a7513366def600d3b8617b7003e0cb37931", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling derive_more-impl v2.0.1
[INFO] [stderr]    Compiling derive_more v2.0.1
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling uuid v1.16.0
[INFO] [stderr]    Compiling matchbox_protocol v0.12.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.22s
[INFO] running `Command { std: "docker" "inspect" "ffc1d7757900909c32decfd21b465a7513366def600d3b8617b7003e0cb37931", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ffc1d7757900909c32decfd21b465a7513366def600d3b8617b7003e0cb37931", kill_on_drop: false }`
[INFO] [stdout] ffc1d7757900909c32decfd21b465a7513366def600d3b8617b7003e0cb37931
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5be2accb2d275cdfb2e9416ebe0ca11dec350eca3116c31437c54e27a8eef165
[INFO] running `Command { std: "docker" "start" "-a" "5be2accb2d275cdfb2e9416ebe0ca11dec350eca3116c31437c54e27a8eef165", kill_on_drop: false }`
[INFO] [stderr]    Compiling matchbox_protocol v0.12.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "5be2accb2d275cdfb2e9416ebe0ca11dec350eca3116c31437c54e27a8eef165", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5be2accb2d275cdfb2e9416ebe0ca11dec350eca3116c31437c54e27a8eef165", kill_on_drop: false }`
[INFO] [stdout] 5be2accb2d275cdfb2e9416ebe0ca11dec350eca3116c31437c54e27a8eef165
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 75e9861ee1814735d08dccdaab2fd78fffe9865b225171381e76d8c2f7185ddd
[INFO] running `Command { std: "docker" "start" "-a" "75e9861ee1814735d08dccdaab2fd78fffe9865b225171381e76d8c2f7185ddd", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/matchbox_protocol-a465ca6849a221b9)
[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 matchbox_protocol
[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" "75e9861ee1814735d08dccdaab2fd78fffe9865b225171381e76d8c2f7185ddd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75e9861ee1814735d08dccdaab2fd78fffe9865b225171381e76d8c2f7185ddd", kill_on_drop: false }`
[INFO] [stdout] 75e9861ee1814735d08dccdaab2fd78fffe9865b225171381e76d8c2f7185ddd