[INFO] fetching crate optfield 0.4.0...
[INFO] building optfield-0.4.0 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate optfield 0.4.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate optfield 0.4.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate optfield 0.4.0
[INFO] tweaked toml for crates.io crate optfield 0.4.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate optfield 0.4.0 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]      Locking 8 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] 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] a054cbc947cf78aef2c8fbb58491c367d70d2e0c66d475fc6d51e8bf850d6478
[INFO] running `Command { std: "docker" "start" "-a" "a054cbc947cf78aef2c8fbb58491c367d70d2e0c66d475fc6d51e8bf850d6478", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a054cbc947cf78aef2c8fbb58491c367d70d2e0c66d475fc6d51e8bf850d6478", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a054cbc947cf78aef2c8fbb58491c367d70d2e0c66d475fc6d51e8bf850d6478", kill_on_drop: false }`
[INFO] [stdout] a054cbc947cf78aef2c8fbb58491c367d70d2e0c66d475fc6d51e8bf850d6478
[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] 0a89c593b4a3ac9417037ec5cab5fa6aa8ce7e1983ca43804a6000f7c9db03b2
[INFO] running `Command { std: "docker" "start" "-a" "0a89c593b4a3ac9417037ec5cab5fa6aa8ce7e1983ca43804a6000f7c9db03b2", kill_on_drop: false }`
[INFO] [stderr]    Compiling optfield v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `Command { std: "docker" "inspect" "0a89c593b4a3ac9417037ec5cab5fa6aa8ce7e1983ca43804a6000f7c9db03b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a89c593b4a3ac9417037ec5cab5fa6aa8ce7e1983ca43804a6000f7c9db03b2", kill_on_drop: false }`
[INFO] [stdout] 0a89c593b4a3ac9417037ec5cab5fa6aa8ce7e1983ca43804a6000f7c9db03b2
[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] 78e027c50f556c663151151045a85afcc94c18fdf74687e11abfc3d4076c9b31
[INFO] running `Command { std: "docker" "start" "-a" "78e027c50f556c663151151045a85afcc94c18fdf74687e11abfc3d4076c9b31", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling optfield v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 12.72s
[INFO] running `Command { std: "docker" "inspect" "78e027c50f556c663151151045a85afcc94c18fdf74687e11abfc3d4076c9b31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78e027c50f556c663151151045a85afcc94c18fdf74687e11abfc3d4076c9b31", kill_on_drop: false }`
[INFO] [stdout] 78e027c50f556c663151151045a85afcc94c18fdf74687e11abfc3d4076c9b31