[INFO] fetching crate rust_hdl_lib_hls 0.44.0...
[INFO] checking rust_hdl_lib_hls-0.44.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate rust_hdl_lib_hls 0.44.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate rust_hdl_lib_hls 0.44.0 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rust_hdl_lib_hls 0.44.0
[INFO] finished tweaking crates.io crate rust_hdl_lib_hls 0.44.0
[INFO] tweaked toml for crates.io crate rust_hdl_lib_hls 0.44.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 45 packages
[INFO] [stderr]       Adding base64 v0.13.1 (latest: v0.22.0)
[INFO] [stderr]       Adding evalexpr v6.6.0 (latest: v11.3.0)
[INFO] [stderr]       Adding fixedbitset v0.4.2 (latest: v0.5.6)
[INFO] [stderr]       Adding svg v0.10.0 (latest: v0.16.0)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding vcd v0.6.1 (latest: v0.7.0)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded evalexpr v6.6.0
[INFO] [stderr]   Downloaded rust_hdl_lib_core v0.44.1
[INFO] [stderr]   Downloaded vcd v0.6.1
[INFO] [stderr]   Downloaded rust_hdl_lib_widgets v0.44.0
[INFO] [stderr]   Downloaded rust_hdl_lib_macros v0.44.1
[INFO] [stderr]   Downloaded embed-doc-image v0.1.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1dc2945ff94fd7497e01c44f038fbe805976d666d37d170ce53a6b3f7de06b67
[INFO] running `Command { std: "docker" "start" "-a" "1dc2945ff94fd7497e01c44f038fbe805976d666d37d170ce53a6b3f7de06b67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1dc2945ff94fd7497e01c44f038fbe805976d666d37d170ce53a6b3f7de06b67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1dc2945ff94fd7497e01c44f038fbe805976d666d37d170ce53a6b3f7de06b67", kill_on_drop: false }`
[INFO] [stdout] 1dc2945ff94fd7497e01c44f038fbe805976d666d37d170ce53a6b3f7de06b67
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] da1a3a4ac17d5f98da50128656a553cc81139d0d0cca7b4369054b7a60eacf9e
[INFO] running `Command { std: "docker" "start" "-a" "da1a3a4ac17d5f98da50128656a553cc81139d0d0cca7b4369054b7a60eacf9e", kill_on_drop: false }`
[INFO] [stderr]    Compiling substring v1.4.5
[INFO] [stderr]    Compiling regex-automata v0.4.6
[INFO] [stderr]     Checking fixedbitset v0.4.2
[INFO] [stderr]     Checking evalexpr v6.6.0
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]    Compiling seq-macro v0.3.5
[INFO] [stderr]     Checking array-init v2.1.0
[INFO] [stderr]     Checking svg v0.10.0
[INFO] [stderr]     Checking vcd v0.6.1
[INFO] [stderr]    Compiling embed-doc-image v0.1.4
[INFO] [stderr]     Checking petgraph v0.6.4
[INFO] [stderr]     Checking num-bigint v0.4.4
[INFO] [stderr]    Compiling regex v1.10.4
[INFO] [stderr]    Compiling rust_hdl_lib_macros v0.44.1
[INFO] [stderr]     Checking rust_hdl_lib_core v0.44.1
[INFO] [stderr]     Checking rust_hdl_lib_widgets v0.44.0
[INFO] [stderr]     Checking rust_hdl_lib_hls v0.44.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.58s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: svg v0.10.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 4`
[INFO] running `Command { std: "docker" "inspect" "da1a3a4ac17d5f98da50128656a553cc81139d0d0cca7b4369054b7a60eacf9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da1a3a4ac17d5f98da50128656a553cc81139d0d0cca7b4369054b7a60eacf9e", kill_on_drop: false }`
[INFO] [stdout] da1a3a4ac17d5f98da50128656a553cc81139d0d0cca7b4369054b7a60eacf9e