[INFO] fetching crate pcapng-writer 0.1.0...
[INFO] checking pcapng-writer-0.1.0 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate pcapng-writer 0.1.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate pcapng-writer 0.1.0
[INFO] finished tweaking crates.io crate pcapng-writer 0.1.0
[INFO] tweaked toml for crates.io crate pcapng-writer 0.1.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate pcapng-writer 0.1.0 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 3 packages to latest compatible versions
[INFO] [stderr]       Adding nom v2.2.1 (available: v8.0.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3485d49a812a71383385d084e37e5d05adf6b519ddbe9ac526135edc301815e8
[INFO] running `Command { std: "docker" "start" "-a" "3485d49a812a71383385d084e37e5d05adf6b519ddbe9ac526135edc301815e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3485d49a812a71383385d084e37e5d05adf6b519ddbe9ac526135edc301815e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3485d49a812a71383385d084e37e5d05adf6b519ddbe9ac526135edc301815e8", kill_on_drop: false }`
[INFO] [stdout] 3485d49a812a71383385d084e37e5d05adf6b519ddbe9ac526135edc301815e8
[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" "-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c81bce98b06d8788e8d4c8ea97f22bff0d79d8a4e4057810c8f4ade4af6ff2d8
[INFO] running `Command { std: "docker" "start" "-a" "c81bce98b06d8788e8d4c8ea97f22bff0d79d8a4e4057810c8f4ade4af6ff2d8", kill_on_drop: false }`
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking nom v2.2.1
[INFO] [stderr]     Checking pcapng-writer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `padding` is never used
[INFO] [stdout]   --> src/blocks/mod.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 33 | trait Block {
[INFO] [stdout]    |       ----- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 38 |     fn padding(&self) -> Vec<u8> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/blocks/spb.rs:39:45
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn new(orig_len: u32, packet_data: &'a [u8]) -> SimplePacketBlock {
[INFO] [stdout]    |                                             ^^          ----------------- the lifetime gets resolved as `'a`
[INFO] [stdout]    |                                             |
[INFO] [stdout]    |                                             this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn new(orig_len: u32, packet_data: &'a [u8]) -> SimplePacketBlock<'a> {
[INFO] [stdout]    |                                                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking pcapng v1.0.0
[INFO] [stdout] warning: method `padding` is never used
[INFO] [stdout]   --> src/blocks/mod.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 33 | trait Block {
[INFO] [stdout]    |       ----- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 38 |     fn padding(&self) -> Vec<u8> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/blocks/spb.rs:39:45
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn new(orig_len: u32, packet_data: &'a [u8]) -> SimplePacketBlock {
[INFO] [stdout]    |                                             ^^          ----------------- the lifetime gets resolved as `'a`
[INFO] [stdout]    |                                             |
[INFO] [stdout]    |                                             this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn new(orig_len: u32, packet_data: &'a [u8]) -> SimplePacketBlock<'a> {
[INFO] [stdout]    |                                                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.12s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v2.2.1
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "c81bce98b06d8788e8d4c8ea97f22bff0d79d8a4e4057810c8f4ade4af6ff2d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c81bce98b06d8788e8d4c8ea97f22bff0d79d8a4e4057810c8f4ade4af6ff2d8", kill_on_drop: false }`
[INFO] [stdout] c81bce98b06d8788e8d4c8ea97f22bff0d79d8a4e4057810c8f4ade4af6ff2d8