[INFO] cloning repository https://github.com/arthur-teixeira/tcp-ip-stack
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/arthur-teixeira/tcp-ip-stack" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farthur-teixeira%2Ftcp-ip-stack", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farthur-teixeira%2Ftcp-ip-stack'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 146dc0ea80a490f7351e12970d1ceb23c0bb5669
[INFO] testing arthur-teixeira/tcp-ip-stack against master#733b47ea4b1b86216f14ef56e49440c33933f230+rustflags=-Copt-level=3 for pr-138759
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farthur-teixeira%2Ftcp-ip-stack" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/arthur-teixeira/tcp-ip-stack
[INFO] finished tweaking git repo https://github.com/arthur-teixeira/tcp-ip-stack
[INFO] tweaked toml for git repo https://github.com/arthur-teixeira/tcp-ip-stack written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/arthur-teixeira/tcp-ip-stack on toolchain 733b47ea4b1b86216f14ef56e49440c33933f230
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/arthur-teixeira/tcp-ip-stack 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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 09cb4082feee43be3ea65528d76a587436766458d6b6e072394d90acd171a72a
[INFO] running `Command { std: "docker" "start" "-a" "09cb4082feee43be3ea65528d76a587436766458d6b6e072394d90acd171a72a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "09cb4082feee43be3ea65528d76a587436766458d6b6e072394d90acd171a72a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09cb4082feee43be3ea65528d76a587436766458d6b6e072394d90acd171a72a", kill_on_drop: false }`
[INFO] [stdout] 09cb4082feee43be3ea65528d76a587436766458d6b6e072394d90acd171a72a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e50c9b4e73da41ac75f1bc44098e0424bbd4c1bb6542653234bb6c45594d21af
[INFO] running `Command { std: "docker" "start" "-a" "e50c9b4e73da41ac75f1bc44098e0424bbd4c1bb6542653234bb6c45594d21af", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.2.0
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling log v0.4.21
[INFO] [stderr]    Compiling cc v1.0.95
[INFO] [stderr]    Compiling smallvec v1.13.2
[INFO] [stderr]    Compiling scoped-tls v0.1.2
[INFO] [stderr]    Compiling lock_api v0.3.4
[INFO] [stderr]    Compiling tokio-sync v0.1.8
[INFO] [stderr]    Compiling hashbrown v0.14.5
[INFO] [stderr]    Compiling bitfield v0.15.0
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling net2 v0.2.39
[INFO] [stderr]    Compiling ifstructs v0.1.1
[INFO] [stderr]    Compiling parking_lot_core v0.6.3
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling smallvec v0.6.14
[INFO] [stderr]    Compiling tokio-io v0.1.13
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling tokio-codec v0.1.2
[INFO] [stderr]    Compiling dashmap v5.5.3
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling tokio-executor v0.1.10
[INFO] [stderr]    Compiling crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling crossbeam-deque v0.7.4
[INFO] [stderr]    Compiling tokio-current-thread v0.1.7
[INFO] [stderr]    Compiling tokio-timer v0.2.13
[INFO] [stderr]    Compiling tokio-reactor v0.1.12
[INFO] [stderr]    Compiling mio-uds v0.6.8
[INFO] [stderr]    Compiling tokio-threadpool v0.1.18
[INFO] [stderr]    Compiling tokio-tcp v0.1.4
[INFO] [stderr]    Compiling tokio-uds v0.2.7
[INFO] [stderr]    Compiling tokio-udp v0.1.6
[INFO] [stderr]    Compiling tokio-fs v0.1.7
[INFO] [stderr]    Compiling tokio v0.1.22
[INFO] [stderr]    Compiling tokio-core v0.1.18
[INFO] [stderr]    Compiling tun-tap v0.1.4
[INFO] [stderr]    Compiling tcp-ip v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `wait`
[INFO] [stdout]  --> src/sock_types.rs:1:48
[INFO] [stdout]   |
[INFO] [stdout] 1 | use libc::{c_int, size_t, sockaddr, socklen_t, wait};
[INFO] [stdout]   |                                                ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `wait`
[INFO] [stdout]  --> src/sock_types.rs:1:48
[INFO] [stdout]   |
[INFO] [stdout] 1 | use libc::{c_int, size_t, sockaddr, socklen_t, wait};
[INFO] [stdout]   |                                                ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fs::copy`
[INFO] [stdout]  --> src/socket.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     fs::copy,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `addr`
[INFO] [stdout]    --> src/socket.rs:263:27
[INFO] [stdout]     |
[INFO] [stdout] 263 |     fn connect(&mut self, addr: *const sockaddr, addrlen: socklen_t) -> i32 {
[INFO] [stdout]     |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_addr`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `addrlen`
[INFO] [stdout]    --> src/socket.rs:263:50
[INFO] [stdout]     |
[INFO] [stdout] 263 |     fn connect(&mut self, addr: *const sockaddr, addrlen: socklen_t) -> i32 {
[INFO] [stdout]     |                                                  ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_addrlen`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]    --> src/socket.rs:267:25
[INFO] [stdout]     |
[INFO] [stdout] 267 |     fn write(&mut self, buf: &Vec<u8>) -> i32 {
[INFO] [stdout]     |                         ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sockfd`
[INFO] [stdout]    --> src/socket.rs:603:5
[INFO] [stdout]     |
[INFO] [stdout] 603 |     sockfd: i32,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_sockfd`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `addr`
[INFO] [stdout]    --> src/socket.rs:604:5
[INFO] [stdout]     |
[INFO] [stdout] 604 |     addr: *const sockaddr,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_addr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `addrlen`
[INFO] [stdout]    --> src/socket.rs:605:5
[INFO] [stdout]     |
[INFO] [stdout] 605 |     addrlen: socklen_t,
[INFO] [stdout]     |     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_addrlen`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `manager`
[INFO] [stdout]    --> src/socket.rs:606:5
[INFO] [stdout]     |
[INFO] [stdout] 606 |     manager: Option<&Mutex<SocketManager>>,
[INFO] [stdout]     |     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_manager`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_udp_socket` is never used
[INFO] [stdout]   --> src/main.rs:36:4
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn create_udp_socket() -> Result<i32> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_tcp_socket` is never used
[INFO] [stdout]   --> src/main.rs:65:4
[INFO] [stdout]    |
[INFO] [stdout] 65 | fn create_tcp_socket() -> Result<i32> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `tcp_loop` is never used
[INFO] [stdout]   --> src/main.rs:94:4
[INFO] [stdout]    |
[INFO] [stdout] 94 | fn tcp_loop() -> Result<()> {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `write_u32` is never used
[INFO] [stdout]   --> src/buf_writer.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 6  | impl BufWriter {
[INFO] [stdout]    | -------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 24 |     pub fn write_u32(&mut self, val: u32) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `addr` and `mtu` are never read
[INFO] [stdout]   --> src/route.rs:7:9
[INFO] [stdout]    |
[INFO] [stdout] 6  | pub struct Netdev {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 7  |     pub addr: Ipv4Addr,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 10 |     pub mtu: u32,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Netdev` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `metrics` is never read
[INFO] [stdout]   --> src/route.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct Route {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 18 |     pub metrics: u32,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 24.20s
[INFO] running `Command { std: "docker" "inspect" "e50c9b4e73da41ac75f1bc44098e0424bbd4c1bb6542653234bb6c45594d21af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e50c9b4e73da41ac75f1bc44098e0424bbd4c1bb6542653234bb6c45594d21af", kill_on_drop: false }`
[INFO] [stdout] e50c9b4e73da41ac75f1bc44098e0424bbd4c1bb6542653234bb6c45594d21af
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 84f34abbd16138ad567da9d0598c997bef71b19423613a2efd46c2c58092702f
[INFO] running `Command { std: "docker" "start" "-a" "84f34abbd16138ad567da9d0598c997bef71b19423613a2efd46c2c58092702f", kill_on_drop: false }`
[INFO] [stderr]    Compiling tcp-ip v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `wait`
[INFO] [stdout]  --> src/sock_types.rs:1:48
[INFO] [stdout]   |
[INFO] [stdout] 1 | use libc::{c_int, size_t, sockaddr, socklen_t, wait};
[INFO] [stdout]   |                                                ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `wait`
[INFO] [stdout]  --> src/sock_types.rs:1:48
[INFO] [stdout]   |
[INFO] [stdout] 1 | use libc::{c_int, size_t, sockaddr, socklen_t, wait};
[INFO] [stdout]   |                                                ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fs::copy`
[INFO] [stdout]  --> src/socket.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     fs::copy,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `addr`
[INFO] [stdout]    --> src/socket.rs:263:27
[INFO] [stdout]     |
[INFO] [stdout] 263 |     fn connect(&mut self, addr: *const sockaddr, addrlen: socklen_t) -> i32 {
[INFO] [stdout]     |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_addr`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `addrlen`
[INFO] [stdout]    --> src/socket.rs:263:50
[INFO] [stdout]     |
[INFO] [stdout] 263 |     fn connect(&mut self, addr: *const sockaddr, addrlen: socklen_t) -> i32 {
[INFO] [stdout]     |                                                  ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_addrlen`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]    --> src/socket.rs:267:25
[INFO] [stdout]     |
[INFO] [stdout] 267 |     fn write(&mut self, buf: &Vec<u8>) -> i32 {
[INFO] [stdout]     |                         ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sockfd`
[INFO] [stdout]    --> src/socket.rs:603:5
[INFO] [stdout]     |
[INFO] [stdout] 603 |     sockfd: i32,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_sockfd`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `addr`
[INFO] [stdout]    --> src/socket.rs:604:5
[INFO] [stdout]     |
[INFO] [stdout] 604 |     addr: *const sockaddr,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_addr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `addrlen`
[INFO] [stdout]    --> src/socket.rs:605:5
[INFO] [stdout]     |
[INFO] [stdout] 605 |     addrlen: socklen_t,
[INFO] [stdout]     |     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_addrlen`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `manager`
[INFO] [stdout]    --> src/socket.rs:606:5
[INFO] [stdout]     |
[INFO] [stdout] 606 |     manager: Option<&Mutex<SocketManager>>,
[INFO] [stdout]     |     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_manager`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_udp_socket` is never used
[INFO] [stdout]   --> src/main.rs:36:4
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn create_udp_socket() -> Result<i32> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_tcp_socket` is never used
[INFO] [stdout]   --> src/main.rs:65:4
[INFO] [stdout]    |
[INFO] [stdout] 65 | fn create_tcp_socket() -> Result<i32> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `tcp_loop` is never used
[INFO] [stdout]   --> src/main.rs:94:4
[INFO] [stdout]    |
[INFO] [stdout] 94 | fn tcp_loop() -> Result<()> {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `write_u32` is never used
[INFO] [stdout]   --> src/buf_writer.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 6  | impl BufWriter {
[INFO] [stdout]    | -------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 24 |     pub fn write_u32(&mut self, val: u32) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `addr` and `mtu` are never read
[INFO] [stdout]   --> src/route.rs:7:9
[INFO] [stdout]    |
[INFO] [stdout] 6  | pub struct Netdev {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 7  |     pub addr: Ipv4Addr,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 10 |     pub mtu: u32,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Netdev` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `metrics` is never read
[INFO] [stdout]   --> src/route.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct Route {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 18 |     pub metrics: u32,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.80s
[INFO] running `Command { std: "docker" "inspect" "84f34abbd16138ad567da9d0598c997bef71b19423613a2efd46c2c58092702f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84f34abbd16138ad567da9d0598c997bef71b19423613a2efd46c2c58092702f", kill_on_drop: false }`
[INFO] [stdout] 84f34abbd16138ad567da9d0598c997bef71b19423613a2efd46c2c58092702f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4f746d5736e6d0e41262c9fc6845d1aa81372efac31975799b845500138b92f2
[INFO] running `Command { std: "docker" "start" "-a" "4f746d5736e6d0e41262c9fc6845d1aa81372efac31975799b845500138b92f2", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `wait`
[INFO] [stderr]  --> src/sock_types.rs:1:48
[INFO] [stderr]   |
[INFO] [stderr] 1 | use libc::{c_int, size_t, sockaddr, socklen_t, wait};
[INFO] [stderr]   |                                                ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `fs::copy`
[INFO] [stderr]  --> src/socket.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     fs::copy,
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `addr`
[INFO] [stderr]    --> src/socket.rs:263:27
[INFO] [stderr]     |
[INFO] [stderr] 263 |     fn connect(&mut self, addr: *const sockaddr, addrlen: socklen_t) -> i32 {
[INFO] [stderr]     |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_addr`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `addrlen`
[INFO] [stderr]    --> src/socket.rs:263:50
[INFO] [stderr]     |
[INFO] [stderr] 263 |     fn connect(&mut self, addr: *const sockaddr, addrlen: socklen_t) -> i32 {
[INFO] [stderr]     |                                                  ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_addrlen`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `buf`
[INFO] [stderr]    --> src/socket.rs:267:25
[INFO] [stderr]     |
[INFO] [stderr] 267 |     fn write(&mut self, buf: &Vec<u8>) -> i32 {
[INFO] [stderr]     |                         ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sockfd`
[INFO] [stderr]    --> src/socket.rs:603:5
[INFO] [stderr]     |
[INFO] [stderr] 603 |     sockfd: i32,
[INFO] [stderr]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_sockfd`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `addr`
[INFO] [stderr]    --> src/socket.rs:604:5
[INFO] [stderr]     |
[INFO] [stderr] 604 |     addr: *const sockaddr,
[INFO] [stderr]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_addr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `addrlen`
[INFO] [stderr]    --> src/socket.rs:605:5
[INFO] [stderr]     |
[INFO] [stderr] 605 |     addrlen: socklen_t,
[INFO] [stderr]     |     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_addrlen`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `manager`
[INFO] [stderr]    --> src/socket.rs:606:5
[INFO] [stderr]     |
[INFO] [stderr] 606 |     manager: Option<&Mutex<SocketManager>>,
[INFO] [stderr]     |     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_manager`
[INFO] [stderr] 
[INFO] [stderr] warning: function `create_udp_socket` is never used
[INFO] [stderr]   --> src/main.rs:36:4
[INFO] [stderr]    |
[INFO] [stderr] 36 | fn create_udp_socket() -> Result<i32> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `create_tcp_socket` is never used
[INFO] [stderr]   --> src/main.rs:65:4
[INFO] [stderr]    |
[INFO] [stderr] 65 | fn create_tcp_socket() -> Result<i32> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `tcp_loop` is never used
[INFO] [stderr]   --> src/main.rs:94:4
[INFO] [stderr]    |
[INFO] [stderr] 94 | fn tcp_loop() -> Result<()> {
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `write_u32` is never used
[INFO] [stderr]   --> src/buf_writer.rs:24:12
[INFO] [stderr]    |
[INFO] [stderr] 6  | impl BufWriter {
[INFO] [stderr]    | -------------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 24 |     pub fn write_u32(&mut self, val: u32) {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: fields `addr` and `mtu` are never read
[INFO] [stderr]   --> src/route.rs:7:9
[INFO] [stderr]    |
[INFO] [stderr] 6  | pub struct Netdev {
[INFO] [stderr]    |            ------ fields in this struct
[INFO] [stderr] 7  |     pub addr: Ipv4Addr,
[INFO] [stderr]    |         ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 10 |     pub mtu: u32,
[INFO] [stderr]    |         ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Netdev` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: field `metrics` is never read
[INFO] [stderr]   --> src/route.rs:18:9
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub struct Route {
[INFO] [stderr]    |            ----- field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 18 |     pub metrics: u32,
[INFO] [stderr]    |         ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `tcp-ip` (lib test) generated 1 warning (run `cargo fix --lib -p tcp-ip --tests` to apply 1 suggestion)
[INFO] [stderr] warning: `tcp-ip` (bin "tcp-ip" test) generated 15 warnings (1 duplicate) (run `cargo fix --bin "tcp-ip" --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running unittests src/lib_socket.rs (/opt/rustwide/target/debug/deps/sockets-ff5be99969c8b367)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/tcp_ip-e5d5e73ba730e459)
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test socket::socket_test::test_bind_null_addr ... ok
[INFO] [stdout] test socket::socket_test::test_bind_socket ... ok
[INFO] [stdout] test socket::socket_test::test_tcp_listen ... ok
[INFO] [stdout] test socket::socket_test::test_tcp_socket ... ok
[INFO] [stdout] test socket::socket_test::test_udp_socket ... ok
[INFO] [stdout] test socket::socket_test::test_unbound_listen ... ok
[INFO] [stdout] test socket::socket_test::test_bind_invalid_sockaddr ... ok
[INFO] [stdout] test tcp::tcp_test::test_new_connection_with_rst ... ok
[INFO] [stdout] test arp::arp_test::test_arp_recv ... ok
[INFO] [stdout] test tcp::tcp_test::test_new_connection ... ok
[INFO] [stdout] test tcp::tcp_test::test_new_connection_without_syn ... ok
[INFO] [stdout] test socket::socket_test::test_bind_duplicate_port ... ok
[INFO] [stdout] test socket::socket_test::test_udp_listen ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4f746d5736e6d0e41262c9fc6845d1aa81372efac31975799b845500138b92f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f746d5736e6d0e41262c9fc6845d1aa81372efac31975799b845500138b92f2", kill_on_drop: false }`
[INFO] [stdout] 4f746d5736e6d0e41262c9fc6845d1aa81372efac31975799b845500138b92f2
