[INFO] cloning repository https://github.com/lukkarm1/rust_pcap
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lukkarm1/rust_pcap" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flukkarm1%2Frust_pcap", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flukkarm1%2Frust_pcap'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 444fa4a258e11badf88f12eaaf46e07945ba248d
[INFO] checking lukkarm1/rust_pcap against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flukkarm1%2Frust_pcap" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/lukkarm1/rust_pcap
[INFO] finished tweaking git repo https://github.com/lukkarm1/rust_pcap
[INFO] tweaked toml for git repo https://github.com/lukkarm1/rust_pcap written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/lukkarm1/rust_pcap on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/lukkarm1/rust_pcap 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f80f163fa9e46bacdb797fa7477187b465fec2798d4ebfbb448f053cd10dd6db
[INFO] running `Command { std: "docker" "start" "-a" "f80f163fa9e46bacdb797fa7477187b465fec2798d4ebfbb448f053cd10dd6db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f80f163fa9e46bacdb797fa7477187b465fec2798d4ebfbb448f053cd10dd6db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f80f163fa9e46bacdb797fa7477187b465fec2798d4ebfbb448f053cd10dd6db", kill_on_drop: false }`
[INFO] [stdout] f80f163fa9e46bacdb797fa7477187b465fec2798d4ebfbb448f053cd10dd6db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 28e5fabd5c8e3d49c993347736eb1f6410171d029a25ad60043cd52ffc3afc50
[INFO] running `Command { std: "docker" "start" "-a" "28e5fabd5c8e3d49c993347736eb1f6410171d029a25ad60043cd52ffc3afc50", kill_on_drop: false }`
[INFO] [stderr]     Checking rust_pcap v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `header` and `data` are never read
[INFO] [stdout]   --> src/lib.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub struct Packet {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 49 |     header: PacketHeader,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 50 |     data: PacketData,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Packet` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `data` is never read
[INFO] [stdout]   --> src/lib.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 62 | struct PacketData {
[INFO] [stdout]    |        ---------- field in this struct
[INFO] [stdout] 63 |     data: Vec<u8>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `PacketData` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `header` and `data` are never read
[INFO] [stdout]   --> src/lib.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub struct Packet {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 49 |     header: PacketHeader,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 50 |     data: PacketData,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Packet` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `data` is never read
[INFO] [stdout]   --> src/lib.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 62 | struct PacketData {
[INFO] [stdout]    |        ---------- field in this struct
[INFO] [stdout] 63 |     data: Vec<u8>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `PacketData` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "28e5fabd5c8e3d49c993347736eb1f6410171d029a25ad60043cd52ffc3afc50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28e5fabd5c8e3d49c993347736eb1f6410171d029a25ad60043cd52ffc3afc50", kill_on_drop: false }`
[INFO] [stdout] 28e5fabd5c8e3d49c993347736eb1f6410171d029a25ad60043cd52ffc3afc50