[INFO] fetching crate struct_derive 0.2.1...
[INFO] building struct_derive-0.2.1 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] extracting crate struct_derive 0.2.1 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate struct_derive 0.2.1
[INFO] finished tweaking crates.io crate struct_derive 0.2.1
[INFO] tweaked toml for crates.io crate struct_derive 0.2.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate struct_derive 0.2.1 on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 10 packages to latest compatible versions
[INFO] [stderr]       Adding darling v0.20.11 (available: v0.21.3)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a6b204f4b8ba547339992947fab280b54ad90b608d421d394a65eabf755b2856
[INFO] running `Command { std: "docker" "start" "-a" "a6b204f4b8ba547339992947fab280b54ad90b608d421d394a65eabf755b2856", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a6b204f4b8ba547339992947fab280b54ad90b608d421d394a65eabf755b2856", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6b204f4b8ba547339992947fab280b54ad90b608d421d394a65eabf755b2856", kill_on_drop: false }`
[INFO] [stdout] a6b204f4b8ba547339992947fab280b54ad90b608d421d394a65eabf755b2856
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 43df8f3dc25e995c2cea4795ba0db72d78da3586f6ee5069648a47c2171135e7
[INFO] running `Command { std: "docker" "start" "-a" "43df8f3dc25e995c2cea4795ba0db72d78da3586f6ee5069648a47c2171135e7", kill_on_drop: false }`
[INFO] [stderr]    Compiling struct_derive v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.93s
[INFO] running `Command { std: "docker" "inspect" "43df8f3dc25e995c2cea4795ba0db72d78da3586f6ee5069648a47c2171135e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43df8f3dc25e995c2cea4795ba0db72d78da3586f6ee5069648a47c2171135e7", kill_on_drop: false }`
[INFO] [stdout] 43df8f3dc25e995c2cea4795ba0db72d78da3586f6ee5069648a47c2171135e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f142687f5b19dc730870c00e64a5a69a469d20ae7e3f5c8b98dde2f563062a7
[INFO] running `Command { std: "docker" "start" "-a" "5f142687f5b19dc730870c00e64a5a69a469d20ae7e3f5c8b98dde2f563062a7", kill_on_drop: false }`
[INFO] [stderr]    Compiling struct_derive v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "5f142687f5b19dc730870c00e64a5a69a469d20ae7e3f5c8b98dde2f563062a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f142687f5b19dc730870c00e64a5a69a469d20ae7e3f5c8b98dde2f563062a7", kill_on_drop: false }`
[INFO] [stdout] 5f142687f5b19dc730870c00e64a5a69a469d20ae7e3f5c8b98dde2f563062a7