[INFO] fetching crate optional_struct_export 0.4.1...
[INFO] building optional_struct_export-0.4.1 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate optional_struct_export 0.4.1 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate optional_struct_export 0.4.1
[INFO] finished tweaking crates.io crate optional_struct_export 0.4.1
[INFO] tweaked toml for crates.io crate optional_struct_export 0.4.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate optional_struct_export 0.4.1 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 5 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded optional_struct_macro_impl v0.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9be0ade4833f1e8bf72cef657f3d150ca1a82f5d0bc9935b4ef5520a3b35da36
[INFO] running `Command { std: "docker" "start" "-a" "9be0ade4833f1e8bf72cef657f3d150ca1a82f5d0bc9935b4ef5520a3b35da36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9be0ade4833f1e8bf72cef657f3d150ca1a82f5d0bc9935b4ef5520a3b35da36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9be0ade4833f1e8bf72cef657f3d150ca1a82f5d0bc9935b4ef5520a3b35da36", kill_on_drop: false }`
[INFO] [stdout] 9be0ade4833f1e8bf72cef657f3d150ca1a82f5d0bc9935b4ef5520a3b35da36
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1ffb7199e6291a5c78060b69218ce9a0d8cc945fa29e17459a35acd7cf19c8cf
[INFO] running `Command { std: "docker" "start" "-a" "1ffb7199e6291a5c78060b69218ce9a0d8cc945fa29e17459a35acd7cf19c8cf", kill_on_drop: false }`
[INFO] [stderr]    Compiling optional_struct_macro_impl v0.4.1
[INFO] [stderr]    Compiling optional_struct_export v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `Command { std: "docker" "inspect" "1ffb7199e6291a5c78060b69218ce9a0d8cc945fa29e17459a35acd7cf19c8cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ffb7199e6291a5c78060b69218ce9a0d8cc945fa29e17459a35acd7cf19c8cf", kill_on_drop: false }`
[INFO] [stdout] 1ffb7199e6291a5c78060b69218ce9a0d8cc945fa29e17459a35acd7cf19c8cf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 59543caaefde0a7ce49e68f033257283fb608a2b0e35a6844fdaa1d6b69d0627
[INFO] running `Command { std: "docker" "start" "-a" "59543caaefde0a7ce49e68f033257283fb608a2b0e35a6844fdaa1d6b69d0627", kill_on_drop: false }`
[INFO] [stderr]    Compiling optional_struct_export v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.18s
[INFO] running `Command { std: "docker" "inspect" "59543caaefde0a7ce49e68f033257283fb608a2b0e35a6844fdaa1d6b69d0627", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59543caaefde0a7ce49e68f033257283fb608a2b0e35a6844fdaa1d6b69d0627", kill_on_drop: false }`
[INFO] [stdout] 59543caaefde0a7ce49e68f033257283fb608a2b0e35a6844fdaa1d6b69d0627