[INFO] fetching crate packet_dog 0.2.4...
[INFO] checking packet_dog-0.2.4 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate packet_dog 0.2.4 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate packet_dog 0.2.4 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 packet_dog 0.2.4
[INFO] finished tweaking crates.io crate packet_dog 0.2.4
[INFO] tweaked toml for crates.io crate packet_dog 0.2.4 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate packet_dog 0.2.4 already has a lockfile, it will not be regenerated
[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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded futures-core v0.3.16
[INFO] [stderr]   Downloaded pcap v0.7.0
[INFO] [stderr]   Downloaded pktparse v0.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] e4012f207af360a63fb16427119570d16a85bbf0ba89dfc1f4ae35c98d2fcef7
[INFO] running `Command { std: "docker" "start" "-a" "e4012f207af360a63fb16427119570d16a85bbf0ba89dfc1f4ae35c98d2fcef7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e4012f207af360a63fb16427119570d16a85bbf0ba89dfc1f4ae35c98d2fcef7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4012f207af360a63fb16427119570d16a85bbf0ba89dfc1f4ae35c98d2fcef7", kill_on_drop: false }`
[INFO] [stdout] e4012f207af360a63fb16427119570d16a85bbf0ba89dfc1f4ae35c98d2fcef7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 30b969a8034ea1d9057838c1ea0e13420cf0c9534a3dc0b03a3fad4c23228ee4
[INFO] running `Command { std: "docker" "start" "-a" "30b969a8034ea1d9057838c1ea0e13420cf0c9534a3dc0b03a3fad4c23228ee4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling futures-core v0.3.16
[INFO] [stderr]    Compiling pcap v0.7.0
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking pktparse v0.4.1
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking packet_dog v0.2.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `pktparse` is imported redundantly
[INFO] [stdout]  --> src/handler.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use pktparse;
[INFO] [stdout]   |     ^^^^^^^^ the item `pktparse` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `pktparse` is imported redundantly
[INFO] [stdout]  --> src/packets/parser.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | use pktparse::{self, ethernet, ipv4::IPv4Header, ipv6::IPv6Header, arp::ArpPacket};
[INFO] [stdout]   |                ^^^^ the item `pktparse` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `pktparse` is imported redundantly
[INFO] [stdout]  --> src/handler.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use pktparse;
[INFO] [stdout]   |     ^^^^^^^^ the item `pktparse` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `pktparse` is imported redundantly
[INFO] [stdout]  --> src/packets/parser.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | use pktparse::{self, ethernet, ipv4::IPv4Header, ipv6::IPv6Header, arp::ArpPacket};
[INFO] [stdout]   |                ^^^^ the item `pktparse` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `data` is never read
[INFO] [stdout]   --> src/handler.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub struct Handler {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] 34 |     pub data: JsonData,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `data` is never read
[INFO] [stdout]   --> src/handler.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub struct Handler {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] 34 |     pub data: JsonData,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.64s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v4.2.3
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 5`
[INFO] running `Command { std: "docker" "inspect" "30b969a8034ea1d9057838c1ea0e13420cf0c9534a3dc0b03a3fad4c23228ee4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30b969a8034ea1d9057838c1ea0e13420cf0c9534a3dc0b03a3fad4c23228ee4", kill_on_drop: false }`
[INFO] [stdout] 30b969a8034ea1d9057838c1ea0e13420cf0c9534a3dc0b03a3fad4c23228ee4