[INFO] fetching crate optional-fields-serde-macro 0.1.0...
[INFO] testing optional-fields-serde-macro-0.1.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate optional-fields-serde-macro 0.1.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate optional-fields-serde-macro 0.1.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate optional-fields-serde-macro 0.1.0
[INFO] finished tweaking crates.io crate optional-fields-serde-macro 0.1.0
[INFO] tweaked toml for crates.io crate optional-fields-serde-macro 0.1.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 22e34484783396608e4dd8aefc12585a1453d5074a9a1e50b1551e7a79c048be
[INFO] running `Command { std: "docker" "start" "-a" "22e34484783396608e4dd8aefc12585a1453d5074a9a1e50b1551e7a79c048be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "22e34484783396608e4dd8aefc12585a1453d5074a9a1e50b1551e7a79c048be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22e34484783396608e4dd8aefc12585a1453d5074a9a1e50b1551e7a79c048be", kill_on_drop: false }`
[INFO] [stdout] 22e34484783396608e4dd8aefc12585a1453d5074a9a1e50b1551e7a79c048be
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7fc4f4b5f4468039464c974fde83a5479238711e88898f50e5409b0a67046ad9
[INFO] running `Command { std: "docker" "start" "-a" "7fc4f4b5f4468039464c974fde83a5479238711e88898f50e5409b0a67046ad9", kill_on_drop: false }`
[INFO] [stderr]    Compiling optional-fields-serde-macro v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.30s
[INFO] running `Command { std: "docker" "inspect" "7fc4f4b5f4468039464c974fde83a5479238711e88898f50e5409b0a67046ad9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fc4f4b5f4468039464c974fde83a5479238711e88898f50e5409b0a67046ad9", kill_on_drop: false }`
[INFO] [stdout] 7fc4f4b5f4468039464c974fde83a5479238711e88898f50e5409b0a67046ad9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ee137009d2d254e7f7a4d1a022480d5b07b6223f4f90852b54dbf85dfe1cd0ce
[INFO] running `Command { std: "docker" "start" "-a" "ee137009d2d254e7f7a4d1a022480d5b07b6223f4f90852b54dbf85dfe1cd0ce", kill_on_drop: false }`
[INFO] [stderr]    Compiling optional-fields-serde-macro v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `Command { std: "docker" "inspect" "ee137009d2d254e7f7a4d1a022480d5b07b6223f4f90852b54dbf85dfe1cd0ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee137009d2d254e7f7a4d1a022480d5b07b6223f4f90852b54dbf85dfe1cd0ce", kill_on_drop: false }`
[INFO] [stdout] ee137009d2d254e7f7a4d1a022480d5b07b6223f4f90852b54dbf85dfe1cd0ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1a26dd727d3e3b81e06d3a174e3e564485993bbbaa79eb1ed784f09c8c4f5627
[INFO] running `Command { std: "docker" "start" "-a" "1a26dd727d3e3b81e06d3a174e3e564485993bbbaa79eb1ed784f09c8c4f5627", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/optional_fields_serde_macro-48fd55a0911a9ef6)
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests optional-fields-serde-macro
[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] [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" "1a26dd727d3e3b81e06d3a174e3e564485993bbbaa79eb1ed784f09c8c4f5627", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a26dd727d3e3b81e06d3a174e3e564485993bbbaa79eb1ed784f09c8c4f5627", kill_on_drop: false }`
[INFO] [stdout] 1a26dd727d3e3b81e06d3a174e3e564485993bbbaa79eb1ed784f09c8c4f5627