[INFO] fetching crate wasmer-wasi-local-networking 3.1.1...
[INFO] checking wasmer-wasi-local-networking-3.1.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate wasmer-wasi-local-networking 3.1.1 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate wasmer-wasi-local-networking 3.1.1 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wasmer-wasi-local-networking 3.1.1
[INFO] finished tweaking crates.io crate wasmer-wasi-local-networking 3.1.1
[INFO] tweaked toml for crates.io crate wasmer-wasi-local-networking 3.1.1 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "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 18 packages
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "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 wasmer-vnet v3.1.1
[INFO] [stderr]   Downloaded wasmer-vfs v3.1.1
[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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 57fcc597d59b4e136ac88c795dff5301067d0d58090a9b55ead8b5922ca37674
[INFO] running `Command { std: "docker" "start" "-a" "57fcc597d59b4e136ac88c795dff5301067d0d58090a9b55ead8b5922ca37674", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "57fcc597d59b4e136ac88c795dff5301067d0d58090a9b55ead8b5922ca37674", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57fcc597d59b4e136ac88c795dff5301067d0d58090a9b55ead8b5922ca37674", kill_on_drop: false }`
[INFO] [stdout] 57fcc597d59b4e136ac88c795dff5301067d0d58090a9b55ead8b5922ca37674
[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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a01489828c688a4de4854b5a430dd6c31449d83c5fc39f9f9a0fc7a8621f2a9f
[INFO] running `Command { std: "docker" "start" "-a" "a01489828c688a4de4854b5a430dd6c31449d83c5fc39f9f9a0fc7a8621f2a9f", kill_on_drop: false }`
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking wasmer-vfs v3.1.1
[INFO] [stderr]     Checking wasmer-vnet v3.1.1
[INFO] [stderr]     Checking wasmer-wasi-local-networking v3.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `1` is never read
[INFO] [stdout]    --> src/lib.rs:414:48
[INFO] [stdout]     |
[INFO] [stdout] 414 | pub struct LocalUdpSocket(std::net::UdpSocket, SocketAddr);
[INFO] [stdout]     |            -------------- field in this struct ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `LocalUdpSocket` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 414 | pub struct LocalUdpSocket(std::net::UdpSocket, ());
[INFO] [stdout]     |                                                ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `1` is never read
[INFO] [stdout]    --> src/lib.rs:414:48
[INFO] [stdout]     |
[INFO] [stdout] 414 | pub struct LocalUdpSocket(std::net::UdpSocket, SocketAddr);
[INFO] [stdout]     |            -------------- field in this struct ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `LocalUdpSocket` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 414 | pub struct LocalUdpSocket(std::net::UdpSocket, ());
[INFO] [stdout]     |                                                ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `Command { std: "docker" "inspect" "a01489828c688a4de4854b5a430dd6c31449d83c5fc39f9f9a0fc7a8621f2a9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a01489828c688a4de4854b5a430dd6c31449d83c5fc39f9f9a0fc7a8621f2a9f", kill_on_drop: false }`
[INFO] [stdout] a01489828c688a4de4854b5a430dd6c31449d83c5fc39f9f9a0fc7a8621f2a9f
[INFO] checking wasmer-wasi-local-networking-3.1.1 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate wasmer-wasi-local-networking 3.1.1 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate wasmer-wasi-local-networking 3.1.1 on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wasmer-wasi-local-networking 3.1.1
[INFO] finished tweaking crates.io crate wasmer-wasi-local-networking 3.1.1
[INFO] tweaked toml for crates.io crate wasmer-wasi-local-networking 3.1.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 18 packages
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0d35e3f508fb30166dc032dfe473ac62e700120f2634fc0869c69446f865e399
[INFO] running `Command { std: "docker" "start" "-a" "0d35e3f508fb30166dc032dfe473ac62e700120f2634fc0869c69446f865e399", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0d35e3f508fb30166dc032dfe473ac62e700120f2634fc0869c69446f865e399", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d35e3f508fb30166dc032dfe473ac62e700120f2634fc0869c69446f865e399", kill_on_drop: false }`
[INFO] [stdout] 0d35e3f508fb30166dc032dfe473ac62e700120f2634fc0869c69446f865e399
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3ba33a3cbf80b2938e4d5dcccf3fe5947daf21f7f1c657c02f4b50e2f7967770
[INFO] running `Command { std: "docker" "start" "-a" "3ba33a3cbf80b2938e4d5dcccf3fe5947daf21f7f1c657c02f4b50e2f7967770", kill_on_drop: false }`
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking wasmer-vfs v3.1.1
[INFO] [stderr]     Checking wasmer-vnet v3.1.1
[INFO] [stderr]     Checking wasmer-wasi-local-networking v3.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `1` is never read
[INFO] [stdout]    --> src/lib.rs:414:48
[INFO] [stdout]     |
[INFO] [stdout] 414 | pub struct LocalUdpSocket(std::net::UdpSocket, SocketAddr);
[INFO] [stdout]     |            -------------- field in this struct ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `LocalUdpSocket` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 414 | pub struct LocalUdpSocket(std::net::UdpSocket, ());
[INFO] [stdout]     |                                                ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `1` is never read
[INFO] [stdout]    --> src/lib.rs:414:48
[INFO] [stdout]     |
[INFO] [stdout] 414 | pub struct LocalUdpSocket(std::net::UdpSocket, SocketAddr);
[INFO] [stdout]     |            -------------- field in this struct ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `LocalUdpSocket` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 414 | pub struct LocalUdpSocket(std::net::UdpSocket, ());
[INFO] [stdout]     |                                                ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `Command { std: "docker" "inspect" "3ba33a3cbf80b2938e4d5dcccf3fe5947daf21f7f1c657c02f4b50e2f7967770", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ba33a3cbf80b2938e4d5dcccf3fe5947daf21f7f1c657c02f4b50e2f7967770", kill_on_drop: false }`
[INFO] [stdout] 3ba33a3cbf80b2938e4d5dcccf3fe5947daf21f7f1c657c02f4b50e2f7967770