[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 beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdefcronyke%2Frust-struct-optional-field" "/workspace/builds/worker-17/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-17/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/defcronyke/rust-struct-optional-field on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-17/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" "+beta-2022-04-10" "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-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7461d40c07a9f03cfa7c2b0771b201e678ae1145f8e3aa384489f8d9ed4ac596
[INFO] running `Command { std: "docker" "start" "-a" "7461d40c07a9f03cfa7c2b0771b201e678ae1145f8e3aa384489f8d9ed4ac596", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7461d40c07a9f03cfa7c2b0771b201e678ae1145f8e3aa384489f8d9ed4ac596", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7461d40c07a9f03cfa7c2b0771b201e678ae1145f8e3aa384489f8d9ed4ac596", kill_on_drop: false }`
[INFO] [stdout] 7461d40c07a9f03cfa7c2b0771b201e678ae1145f8e3aa384489f8d9ed4ac596
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e365e84a198febec3463524900bf2abb4efc03eb89c0485fcc1454b10fa36f07
[INFO] running `Command { std: "docker" "start" "-a" "e365e84a198febec3463524900bf2abb4efc03eb89c0485fcc1454b10fa36f07", kill_on_drop: false }`
[INFO] [stderr]    Compiling struct-test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.10s
[INFO] running `Command { std: "docker" "inspect" "e365e84a198febec3463524900bf2abb4efc03eb89c0485fcc1454b10fa36f07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e365e84a198febec3463524900bf2abb4efc03eb89c0485fcc1454b10fa36f07", kill_on_drop: false }`
[INFO] [stdout] e365e84a198febec3463524900bf2abb4efc03eb89c0485fcc1454b10fa36f07
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 61c7a772cebcd1c887dfb6c0591fdbc701bed39f0f9cd4fab95328fb48dcd5a1
[INFO] running `Command { std: "docker" "start" "-a" "61c7a772cebcd1c887dfb6c0591fdbc701bed39f0f9cd4fab95328fb48dcd5a1", kill_on_drop: false }`
[INFO] [stderr]    Compiling struct-test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.29s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/struct_test-baf9638ac3b8cdc4)
[INFO] running `Command { std: "docker" "inspect" "61c7a772cebcd1c887dfb6c0591fdbc701bed39f0f9cd4fab95328fb48dcd5a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61c7a772cebcd1c887dfb6c0591fdbc701bed39f0f9cd4fab95328fb48dcd5a1", kill_on_drop: false }`
[INFO] [stdout] 61c7a772cebcd1c887dfb6c0591fdbc701bed39f0f9cd4fab95328fb48dcd5a1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 79542c7d5266a698c74e16d3d1803ce67a1e2afd8adf5f459ea97edabcfccfd4
[INFO] running `Command { std: "docker" "start" "-a" "79542c7d5266a698c74e16d3d1803ce67a1e2afd8adf5f459ea97edabcfccfd4", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/struct_test-baf9638ac3b8cdc4)
[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" "79542c7d5266a698c74e16d3d1803ce67a1e2afd8adf5f459ea97edabcfccfd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79542c7d5266a698c74e16d3d1803ce67a1e2afd8adf5f459ea97edabcfccfd4", kill_on_drop: false }`
[INFO] [stdout] 79542c7d5266a698c74e16d3d1803ce67a1e2afd8adf5f459ea97edabcfccfd4