[INFO] fetching crate struct_field 0.1.4...
[INFO] testing struct_field-0.1.4 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate struct_field 0.1.4 into /workspace/builds/worker-105/source
[INFO] validating manifest of crates.io crate struct_field 0.1.4 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 struct_field 0.1.4
[INFO] finished tweaking crates.io crate struct_field 0.1.4
[INFO] tweaked toml for crates.io crate struct_field 0.1.4 written to /workspace/builds/worker-105/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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] 2c6e05ded1c774a7c4bf57c89d985d35386168e50a86a456c4b9507760ab9855
[INFO] running `Command { std: "docker" "start" "-a" "2c6e05ded1c774a7c4bf57c89d985d35386168e50a86a456c4b9507760ab9855", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c6e05ded1c774a7c4bf57c89d985d35386168e50a86a456c4b9507760ab9855", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c6e05ded1c774a7c4bf57c89d985d35386168e50a86a456c4b9507760ab9855", kill_on_drop: false }`
[INFO] [stdout] 2c6e05ded1c774a7c4bf57c89d985d35386168e50a86a456c4b9507760ab9855
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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] 5e817ded8fed91067abf1f2cabd66ef4c596eb207a7fa9fc1c5d790e933e242f
[INFO] running `Command { std: "docker" "start" "-a" "5e817ded8fed91067abf1f2cabd66ef4c596eb207a7fa9fc1c5d790e933e242f", kill_on_drop: false }`
[INFO] [stderr]    Compiling struct_field v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.29s
[INFO] running `Command { std: "docker" "inspect" "5e817ded8fed91067abf1f2cabd66ef4c596eb207a7fa9fc1c5d790e933e242f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e817ded8fed91067abf1f2cabd66ef4c596eb207a7fa9fc1c5d790e933e242f", kill_on_drop: false }`
[INFO] [stdout] 5e817ded8fed91067abf1f2cabd66ef4c596eb207a7fa9fc1c5d790e933e242f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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] 8fceb2815a1163a899db5985cb39a8aa9780da3f0913d2a189ed2f9815e055d5
[INFO] running `Command { std: "docker" "start" "-a" "8fceb2815a1163a899db5985cb39a8aa9780da3f0913d2a189ed2f9815e055d5", kill_on_drop: false }`
[INFO] [stderr]    Compiling struct_field_names v0.2.1
[INFO] [stderr]    Compiling struct_field v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.48s
[INFO] running `Command { std: "docker" "inspect" "8fceb2815a1163a899db5985cb39a8aa9780da3f0913d2a189ed2f9815e055d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fceb2815a1163a899db5985cb39a8aa9780da3f0913d2a189ed2f9815e055d5", kill_on_drop: false }`
[INFO] [stdout] 8fceb2815a1163a899db5985cb39a8aa9780da3f0913d2a189ed2f9815e055d5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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] 2a3fcd7f09317f4ac1e605d632e7054e35b34b42c02daa19da33ec5c38de03ea
[INFO] running `Command { std: "docker" "start" "-a" "2a3fcd7f09317f4ac1e605d632e7054e35b34b42c02daa19da33ec5c38de03ea", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/struct_field-e9f694ef10c29944)
[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]      Running tests/tests.rs (/opt/rustwide/target/debug/deps/tests-e83f269cee47122d)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test not_a_test_skip_attribute ... ok
[INFO] [stdout] test test_field ... ok
[INFO] [stderr]    Doc-tests struct_field
[INFO] [stdout] test test_with_generic_struct ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 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" "2a3fcd7f09317f4ac1e605d632e7054e35b34b42c02daa19da33ec5c38de03ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a3fcd7f09317f4ac1e605d632e7054e35b34b42c02daa19da33ec5c38de03ea", kill_on_drop: false }`
[INFO] [stdout] 2a3fcd7f09317f4ac1e605d632e7054e35b34b42c02daa19da33ec5c38de03ea