[INFO] fetching crate struct_as_array 0.2.0...
[INFO] checking struct_as_array-0.2.0 against master#38352b01ae4af9300be03b805d6db68c45e51068 for pr-129864
[INFO] extracting crate struct_as_array 0.2.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate struct_as_array 0.2.0 on toolchain 38352b01ae4af9300be03b805d6db68c45e51068
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate struct_as_array 0.2.0
[INFO] finished tweaking crates.io crate struct_as_array 0.2.0
[INFO] tweaked toml for crates.io crate struct_as_array 0.2.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 3 packages to latest compatible versions
[INFO] [stderr]       Adding quote v0.2.3 (available: v1.0.37)
[INFO] [stderr]       Adding syn v0.8.7 (available: v2.0.77)
[INFO] [stderr]       Adding unicode-xid v0.0.3 (available: v0.2.6)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded syn v0.8.7
[INFO] [stderr]   Downloaded quote v0.2.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0c354b1ea19b87932bca0cf56e99e02069669f724f599b0ec0cc5ff6beddee3c
[INFO] running `Command { std: "docker" "start" "-a" "0c354b1ea19b87932bca0cf56e99e02069669f724f599b0ec0cc5ff6beddee3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0c354b1ea19b87932bca0cf56e99e02069669f724f599b0ec0cc5ff6beddee3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c354b1ea19b87932bca0cf56e99e02069669f724f599b0ec0cc5ff6beddee3c", kill_on_drop: false }`
[INFO] [stdout] 0c354b1ea19b87932bca0cf56e99e02069669f724f599b0ec0cc5ff6beddee3c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 34cd32b2448d197e489c8fa085854080adcd998b248536b4cbe713566b1bb95c
[INFO] running `Command { std: "docker" "start" "-a" "34cd32b2448d197e489c8fa085854080adcd998b248536b4cbe713566b1bb95c", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode-xid v0.0.3
[INFO] [stderr]     Checking quote v0.2.3
[INFO] [stderr]     Checking syn v0.8.7
[INFO] [stderr]     Checking struct_as_array v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.45s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: syn v0.8.7
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3`
[INFO] running `Command { std: "docker" "inspect" "34cd32b2448d197e489c8fa085854080adcd998b248536b4cbe713566b1bb95c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34cd32b2448d197e489c8fa085854080adcd998b248536b4cbe713566b1bb95c", kill_on_drop: false }`
[INFO] [stdout] 34cd32b2448d197e489c8fa085854080adcd998b248536b4cbe713566b1bb95c