[INFO] fetching crate struct_as_array 0.2.0...
[INFO] building struct_as_array-0.2.0 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] extracting crate struct_as_array 0.2.0 into /workspace/builds/worker-5-tc1/source
[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-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate struct_as_array 0.2.0 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]     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: v1.0.40)
[INFO] [stderr]       Adding syn v0.8.7 (available: v2.0.106)
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded unicode-xid v0.0.3
[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-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] a2d0d6f6d6c7c1dfed8fdc8ce54cdeb7902dc72d5a27b482fe2d57133a71fa5d
[INFO] running `Command { std: "docker" "start" "-a" "a2d0d6f6d6c7c1dfed8fdc8ce54cdeb7902dc72d5a27b482fe2d57133a71fa5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a2d0d6f6d6c7c1dfed8fdc8ce54cdeb7902dc72d5a27b482fe2d57133a71fa5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2d0d6f6d6c7c1dfed8fdc8ce54cdeb7902dc72d5a27b482fe2d57133a71fa5d", kill_on_drop: false }`
[INFO] [stdout] a2d0d6f6d6c7c1dfed8fdc8ce54cdeb7902dc72d5a27b482fe2d57133a71fa5d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] c3889a6ff6c4054c5c8f9c08c40e6f08c9aa1f1dd7efea71d48b2287f8d7578d
[INFO] running `Command { std: "docker" "start" "-a" "c3889a6ff6c4054c5c8f9c08c40e6f08c9aa1f1dd7efea71d48b2287f8d7578d", kill_on_drop: false }`
[INFO] [stderr]    Compiling quote v0.2.3
[INFO] [stderr]    Compiling unicode-xid v0.0.3
[INFO] [stderr]    Compiling syn v0.8.7
[INFO] [stderr]    Compiling struct_as_array v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.44s
[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 2`
[INFO] running `Command { std: "docker" "inspect" "c3889a6ff6c4054c5c8f9c08c40e6f08c9aa1f1dd7efea71d48b2287f8d7578d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3889a6ff6c4054c5c8f9c08c40e6f08c9aa1f1dd7efea71d48b2287f8d7578d", kill_on_drop: false }`
[INFO] [stdout] c3889a6ff6c4054c5c8f9c08c40e6f08c9aa1f1dd7efea71d48b2287f8d7578d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 0fac63aa9dba23d84f54c92f403688164e38c7e68c4684050e28fc2e9b44b48f
[INFO] running `Command { std: "docker" "start" "-a" "0fac63aa9dba23d84f54c92f403688164e38c7e68c4684050e28fc2e9b44b48f", kill_on_drop: false }`
[INFO] [stderr]    Compiling struct_as_array v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.36s
[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 2`
[INFO] running `Command { std: "docker" "inspect" "0fac63aa9dba23d84f54c92f403688164e38c7e68c4684050e28fc2e9b44b48f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0fac63aa9dba23d84f54c92f403688164e38c7e68c4684050e28fc2e9b44b48f", kill_on_drop: false }`
[INFO] [stdout] 0fac63aa9dba23d84f54c92f403688164e38c7e68c4684050e28fc2e9b44b48f