[INFO] fetching crate funver 1.0.0-experimental-serde.1.0...
[INFO] testing funver-1.0.0-experimental-serde.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate funver 1.0.0-experimental-serde.1.0 into /workspace/builds/worker-24/source
[INFO] validating manifest of crates.io crate funver 1.0.0-experimental-serde.1.0 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 funver 1.0.0-experimental-serde.1.0
[INFO] finished tweaking crates.io crate funver 1.0.0-experimental-serde.1.0
[INFO] tweaked toml for crates.io crate funver 1.0.0-experimental-serde.1.0 written to /workspace/builds/worker-24/source/Cargo.toml
[INFO] crate crates.io crate funver 1.0.0-experimental-serde.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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] e3f36f74c43f65af07b0b90e6eeb881401f2176a45ea2026116d25a98835c845
[INFO] running `Command { std: "docker" "start" "-a" "e3f36f74c43f65af07b0b90e6eeb881401f2176a45ea2026116d25a98835c845", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e3f36f74c43f65af07b0b90e6eeb881401f2176a45ea2026116d25a98835c845", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3f36f74c43f65af07b0b90e6eeb881401f2176a45ea2026116d25a98835c845", kill_on_drop: false }`
[INFO] [stdout] e3f36f74c43f65af07b0b90e6eeb881401f2176a45ea2026116d25a98835c845
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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] 7d6367a31417947ca367fb90fad9661aa0e043329d3f2df62305f60ab4607531
[INFO] running `Command { std: "docker" "start" "-a" "7d6367a31417947ca367fb90fad9661aa0e043329d3f2df62305f60ab4607531", kill_on_drop: false }`
[INFO] [stderr]    Compiling funver v1.0.0-experimental-serde.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `Command { std: "docker" "inspect" "7d6367a31417947ca367fb90fad9661aa0e043329d3f2df62305f60ab4607531", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d6367a31417947ca367fb90fad9661aa0e043329d3f2df62305f60ab4607531", kill_on_drop: false }`
[INFO] [stdout] 7d6367a31417947ca367fb90fad9661aa0e043329d3f2df62305f60ab4607531
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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] cc034dfa4c64628490b5d96277f8df6a35940b1ff28821188e5718ee60742e51
[INFO] running `Command { std: "docker" "start" "-a" "cc034dfa4c64628490b5d96277f8df6a35940b1ff28821188e5718ee60742e51", kill_on_drop: false }`
[INFO] [stderr]    Compiling funver v1.0.0-experimental-serde.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "cc034dfa4c64628490b5d96277f8df6a35940b1ff28821188e5718ee60742e51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc034dfa4c64628490b5d96277f8df6a35940b1ff28821188e5718ee60742e51", kill_on_drop: false }`
[INFO] [stdout] cc034dfa4c64628490b5d96277f8df6a35940b1ff28821188e5718ee60742e51
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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] 50b248e05ecaaf42155dc7e3901e36ffe2ca35db03bbcc65461a975bcca6eef2
[INFO] running `Command { std: "docker" "start" "-a" "50b248e05ecaaf42155dc7e3901e36ffe2ca35db03bbcc65461a975bcca6eef2", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/funver-7a7782eaf979df92)
[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" "50b248e05ecaaf42155dc7e3901e36ffe2ca35db03bbcc65461a975bcca6eef2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50b248e05ecaaf42155dc7e3901e36ffe2ca35db03bbcc65461a975bcca6eef2", kill_on_drop: false }`
[INFO] [stdout] 50b248e05ecaaf42155dc7e3901e36ffe2ca35db03bbcc65461a975bcca6eef2