[INFO] fetching crate seripack 0.1.0...
[INFO] checking seripack-0.1.0 against try#0611f7de057c584b8771102fde7aed6c70c71d3b for pr-146440
[INFO] extracting crate seripack 0.1.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate seripack 0.1.0
[INFO] finished tweaking crates.io crate seripack 0.1.0
[INFO] tweaked toml for crates.io crate seripack 0.1.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate seripack 0.1.0 on toolchain 0611f7de057c584b8771102fde7aed6c70c71d3b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "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" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 33 packages to latest compatible versions
[INFO] [stderr]       Adding blosc v0.1.3 (available: v0.3.1)
[INFO] [stderr]       Adding downcast-rs v1.2.1 (available: v2.0.2)
[INFO] [stderr]       Adding pyo3 v0.17.3 (available: v0.28.3)
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.117)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 79381e85e6cd81d661a4a04fe1a415671157e9b30ee7def584c3e3331c8b9cb8
[INFO] running `Command { std: "docker" "start" "-a" "79381e85e6cd81d661a4a04fe1a415671157e9b30ee7def584c3e3331c8b9cb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "79381e85e6cd81d661a4a04fe1a415671157e9b30ee7def584c3e3331c8b9cb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79381e85e6cd81d661a4a04fe1a415671157e9b30ee7def584c3e3331c8b9cb8", kill_on_drop: false }`
[INFO] [stdout] 79381e85e6cd81d661a4a04fe1a415671157e9b30ee7def584c3e3331c8b9cb8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2200065e34eca4b81bb10283024eed27117178d8b35a77793829dc82613aa7f2
[INFO] running `Command { std: "docker" "start" "-a" "2200065e34eca4b81bb10283024eed27117178d8b35a77793829dc82613aa7f2", kill_on_drop: false }`
[INFO] [stderr]    Compiling target-lexicon v0.12.16
[INFO] [stderr]    Compiling blosc-sys v1.21.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]     Checking unindent v0.1.11
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling indoc v1.0.9
[INFO] [stderr]     Checking downcast-rs v1.2.1
[INFO] [stderr]    Compiling pyo3-macros-backend v0.17.3
[INFO] [stderr]    Compiling seripack_macros v0.1.0
[INFO] [stderr]    Compiling enum_dispatch v0.3.13
[INFO] [stderr]     Checking blosc v0.1.3
[INFO] [stderr]    Compiling pyo3-build-config v0.17.3
[INFO] [stderr]    Compiling pyo3-ffi v0.17.3
[INFO] [stderr]    Compiling pyo3 v0.17.3
[INFO] [stderr]    Compiling pyo3-macros v0.17.3
[INFO] [stderr]     Checking seripack v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: struct `Router` is never constructed
[INFO] [stdout]   --> src/router.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct Router {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]    = note: `#[deny(unused_unconstructable_pub_struct)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `Router` is never constructed
[INFO] [stdout]   --> src/router.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct Router {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]    = note: `#[deny(unused_unconstructable_pub_struct)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `seripack` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `seripack` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "2200065e34eca4b81bb10283024eed27117178d8b35a77793829dc82613aa7f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2200065e34eca4b81bb10283024eed27117178d8b35a77793829dc82613aa7f2", kill_on_drop: false }`
[INFO] [stdout] 2200065e34eca4b81bb10283024eed27117178d8b35a77793829dc82613aa7f2
