[INFO] cloning repository https://github.com/defcronyke/rust-struct-optional-field
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/defcronyke/rust-struct-optional-field" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdefcronyke%2Frust-struct-optional-field", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdefcronyke%2Frust-struct-optional-field'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8e1a9be00ad9c6bb799070db1c948f7463a849d7
[INFO] testing defcronyke/rust-struct-optional-field against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdefcronyke%2Frust-struct-optional-field" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/defcronyke/rust-struct-optional-field on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/defcronyke/rust-struct-optional-field
[INFO] finished tweaking git repo https://github.com/defcronyke/rust-struct-optional-field
[INFO] tweaked toml for git repo https://github.com/defcronyke/rust-struct-optional-field written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/defcronyke/rust-struct-optional-field already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b0ac0a6b3de22f0387c9af6a2c1b6ff296d5cb1e0ae434ec0aacbe2ecf817a9d
[INFO] running `Command { std: "docker" "start" "-a" "b0ac0a6b3de22f0387c9af6a2c1b6ff296d5cb1e0ae434ec0aacbe2ecf817a9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b0ac0a6b3de22f0387c9af6a2c1b6ff296d5cb1e0ae434ec0aacbe2ecf817a9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0ac0a6b3de22f0387c9af6a2c1b6ff296d5cb1e0ae434ec0aacbe2ecf817a9d", kill_on_drop: false }`
[INFO] [stdout] b0ac0a6b3de22f0387c9af6a2c1b6ff296d5cb1e0ae434ec0aacbe2ecf817a9d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a8bc1ed90436d21c6e125624196017664d0030b97f307d416a3ddc8ff74b2f39
[INFO] running `Command { std: "docker" "start" "-a" "a8bc1ed90436d21c6e125624196017664d0030b97f307d416a3ddc8ff74b2f39", kill_on_drop: false }`
[INFO] [stderr]    Compiling struct-test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.11s
[INFO] running `Command { std: "docker" "inspect" "a8bc1ed90436d21c6e125624196017664d0030b97f307d416a3ddc8ff74b2f39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8bc1ed90436d21c6e125624196017664d0030b97f307d416a3ddc8ff74b2f39", kill_on_drop: false }`
[INFO] [stdout] a8bc1ed90436d21c6e125624196017664d0030b97f307d416a3ddc8ff74b2f39
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 67933b6033a3b577e0e4aa6e0aaf53f4ec53e33c83be26a3da9f7b2808d96376
[INFO] running `Command { std: "docker" "start" "-a" "67933b6033a3b577e0e4aa6e0aaf53f4ec53e33c83be26a3da9f7b2808d96376", kill_on_drop: false }`
[INFO] [stderr]    Compiling struct-test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "67933b6033a3b577e0e4aa6e0aaf53f4ec53e33c83be26a3da9f7b2808d96376", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67933b6033a3b577e0e4aa6e0aaf53f4ec53e33c83be26a3da9f7b2808d96376", kill_on_drop: false }`
[INFO] [stdout] 67933b6033a3b577e0e4aa6e0aaf53f4ec53e33c83be26a3da9f7b2808d96376
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 349d3e7d819746af0a91c17e0ba9be2f120323da8b46e9f5fdd3e3af0159d179
[INFO] running `Command { std: "docker" "start" "-a" "349d3e7d819746af0a91c17e0ba9be2f120323da8b46e9f5fdd3e3af0159d179", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/struct_test-10d2721a940e1a4e)
[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" "349d3e7d819746af0a91c17e0ba9be2f120323da8b46e9f5fdd3e3af0159d179", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "349d3e7d819746af0a91c17e0ba9be2f120323da8b46e9f5fdd3e3af0159d179", kill_on_drop: false }`
[INFO] [stdout] 349d3e7d819746af0a91c17e0ba9be2f120323da8b46e9f5fdd3e3af0159d179