[INFO] fetching crate viz-router 0.5.0...
[INFO] checking viz-router-0.5.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate viz-router 0.5.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate viz-router 0.5.0 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 viz-router 0.5.0
[INFO] finished tweaking crates.io crate viz-router 0.5.0
[INFO] tweaked toml for crates.io crate viz-router 0.5.0 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 138 packages
[INFO] [stderr]       Adding base64 v0.21.7 (latest: v0.22.0)
[INFO] [stderr]       Adding generic-array v0.14.7 (latest: v1.0.0)
[INFO] [stderr]       Adding object v0.32.2 (latest: v0.34.0)
[INFO] [stderr]       Adding sessions-core v0.5.1 (latest: v0.6.0)
[INFO] [stderr]       Adding viz-core v0.5.2 (latest: v0.8.4)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding windows-sys v0.48.0 (latest: v0.52.0)
[INFO] [stderr]       Adding windows-targets v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_aarch64_gnullvm v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_aarch64_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_i686_gnu v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_i686_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_gnu v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_gnullvm v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_msvc v0.48.5 (latest: v0.52.4)
[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 sessions-core v0.5.1
[INFO] [stderr]   Downloaded form-data v0.5.4
[INFO] [stderr]   Downloaded headers-core v0.3.0
[INFO] [stderr]   Downloaded headers v0.4.0
[INFO] [stderr]   Downloaded rfc7239 v0.1.1
[INFO] [stderr]   Downloaded path-tree v0.7.6
[INFO] [stderr]   Downloaded tungstenite v0.21.0
[INFO] [stderr]   Downloaded tokio-tungstenite v0.21.0
[INFO] [stderr]   Downloaded viz-core v0.5.2
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f6fbb5a396e9bd065bf54b2d7ed6e2be87a798523b654b19d625a84a4b226bad
[INFO] running `Command { std: "docker" "start" "-a" "f6fbb5a396e9bd065bf54b2d7ed6e2be87a798523b654b19d625a84a4b226bad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f6fbb5a396e9bd065bf54b2d7ed6e2be87a798523b654b19d625a84a4b226bad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6fbb5a396e9bd065bf54b2d7ed6e2be87a798523b654b19d625a84a4b226bad", kill_on_drop: false }`
[INFO] [stdout] f6fbb5a396e9bd065bf54b2d7ed6e2be87a798523b654b19d625a84a4b226bad
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2d7dd1da4c54a6c9bbd9544beab3fa85fd24eda990a3aefaf70f1840fb25619f
[INFO] running `Command { std: "docker" "start" "-a" "2d7dd1da4c54a6c9bbd9544beab3fa85fd24eda990a3aefaf70f1840fb25619f", kill_on_drop: false }`
[INFO] [stderr]     Checking http v1.1.0
[INFO] [stderr]     Checking subtle v2.5.0
[INFO] [stderr]     Checking generic-array v0.14.7
[INFO] [stderr]    Compiling uncased v0.9.10
[INFO] [stderr]    Compiling time-core v0.1.2
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]    Compiling num-conv v0.1.0
[INFO] [stderr]    Compiling cookie v0.18.1
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]     Checking data-encoding v2.5.0
[INFO] [stderr]    Compiling async-trait v0.1.79
[INFO] [stderr]     Checking base64 v0.22.0
[INFO] [stderr]     Checking dyn-clone v1.0.17
[INFO] [stderr]    Compiling time-macros v0.2.17
[INFO] [stderr]     Checking path-tree v0.7.6
[INFO] [stderr]     Checking rfc7239 v0.1.1
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking inout v0.1.3
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking universal-hash v0.5.1
[INFO] [stderr]     Checking aead v0.5.2
[INFO] [stderr]     Checking cipher v0.4.4
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking polyval v0.6.2
[INFO] [stderr]     Checking sha1 v0.10.6
[INFO] [stderr]     Checking aes v0.8.4
[INFO] [stderr]     Checking ctr v0.9.2
[INFO] [stderr]     Checking http-body v1.0.0
[INFO] [stderr]     Checking headers-core v0.3.0
[INFO] [stderr]     Checking ghash v0.5.1
[INFO] [stderr]     Checking http-body-util v0.1.1
[INFO] [stderr]     Checking tungstenite v0.21.0
[INFO] [stderr]     Checking headers v0.4.0
[INFO] [stderr]     Checking sessions-core v0.5.1
[INFO] [stderr]     Checking tokio v1.37.0
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking aes-gcm v0.10.3
[INFO] [stderr]     Checking time v0.3.34
[INFO] [stderr]     Checking form-data v0.5.4
[INFO] [stderr]     Checking tokio-util v0.7.10
[INFO] [stderr]     Checking tokio-tungstenite v0.21.0
[INFO] [stderr]     Checking h2 v0.4.4
[INFO] [stderr]     Checking hyper v1.2.0
[INFO] [stderr]     Checking hyper-util v0.1.3
[INFO] [stderr]     Checking viz-core v0.5.2
[INFO] [stderr]     Checking viz-router v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.45s
[INFO] running `Command { std: "docker" "inspect" "2d7dd1da4c54a6c9bbd9544beab3fa85fd24eda990a3aefaf70f1840fb25619f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d7dd1da4c54a6c9bbd9544beab3fa85fd24eda990a3aefaf70f1840fb25619f", kill_on_drop: false }`
[INFO] [stdout] 2d7dd1da4c54a6c9bbd9544beab3fa85fd24eda990a3aefaf70f1840fb25619f