[INFO] fetching crate cni 0.1.3...
[INFO] testing cni-0.1.3 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate cni 0.1.3 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate cni 0.1.3 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cni 0.1.3
[INFO] finished tweaking crates.io crate cni 0.1.3
[INFO] tweaked toml for crates.io crate cni 0.1.3 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7c59feaf428112c71b1762de374e6da034fc45e9660e18a977ad268da925f285
[INFO] running `Command { std: "docker" "start" "-a" "7c59feaf428112c71b1762de374e6da034fc45e9660e18a977ad268da925f285", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c59feaf428112c71b1762de374e6da034fc45e9660e18a977ad268da925f285", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c59feaf428112c71b1762de374e6da034fc45e9660e18a977ad268da925f285", kill_on_drop: false }`
[INFO] [stdout] 7c59feaf428112c71b1762de374e6da034fc45e9660e18a977ad268da925f285
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1b2dc773cefa853d7b70ebf70951ac1670ef3354fe8f7b0595abab6477530e96
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "1b2dc773cefa853d7b70ebf70951ac1670ef3354fe8f7b0595abab6477530e96", kill_on_drop: false }`
[INFO] [stderr]    Compiling erased-serde v0.3.18
[INFO] [stderr]    Compiling ctor v0.1.21
[INFO] [stderr]    Compiling ghost v0.1.2
[INFO] [stderr]    Compiling typetag-impl v0.1.8
[INFO] [stderr]    Compiling ipnetwork v0.17.0
[INFO] [stderr]    Compiling inventory v0.2.2
[INFO] [stderr]    Compiling typetag v0.1.8
[INFO] [stderr]    Compiling cni v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::libcni::types`
[INFO] [stdout]  --> src/libcni/api.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::libcni::types;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Command`
[INFO] [stdout]  --> src/libcni/exec.rs:5:15
[INFO] [stdout]   |
[INFO] [stdout] 5 |     process::{Command, Stdio},
[INFO] [stdout]   |               ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::libcni::types::DNS`
[INFO] [stdout]  --> src/libcni/result/result100.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::libcni::types::DNS;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `io::Read`
[INFO] [stdout]  --> src/libcni/exec.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     io::Read,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `plugin`
[INFO] [stdout]   --> src/libcni/exec.rs:51:28
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn find_in_path(&self, plugin: String, paths: Vec<String>) -> Result<String> {
[INFO] [stdout]    |                            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_plugin`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `paths`
[INFO] [stdout]   --> src/libcni/exec.rs:51:44
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn find_in_path(&self, plugin: String, paths: Vec<String>) -> Result<String> {
[INFO] [stdout]    |                                            ^^^^^ help: if this is intentional, prefix it with an underscore: `_paths`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]   --> src/libcni/exec.rs:55:22
[INFO] [stdout]    |
[INFO] [stdout] 55 |     fn decode(&self, data: &[u8]) -> Result<()> {
[INFO] [stdout]    |                      ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `w`
[INFO] [stdout]   --> src/libcni/plugin.rs:19:41
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn encode<W: std::io::Write>(&self, w: W) -> super::Result<()> {
[INFO] [stdout]    |                                         ^ help: if this is intentional, prefix it with an underscore: `_w`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `CODE_UNKNOWN`
[INFO] [stdout]  --> src/libcni/error.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | const CODE_UNKNOWN: usize = 0;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `CODE_INCOMPATIBLE_CNI_VERSION`
[INFO] [stdout]  --> src/libcni/error.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | const CODE_INCOMPATIBLE_CNI_VERSION: usize = 1;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `CODE_UNSUPPORTED_FIELD`
[INFO] [stdout]  --> src/libcni/error.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | const CODE_UNSUPPORTED_FIELD: usize = 2;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `CODE_UNKNOWN_CONTAINER`
[INFO] [stdout]  --> src/libcni/error.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | const CODE_UNKNOWN_CONTAINER: usize = 3;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `CODE_INVALID_ENVIRONMENT_VARIABLES`
[INFO] [stdout]   --> src/libcni/error.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | const CODE_INVALID_ENVIRONMENT_VARIABLES: usize = 4;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `CODE_IO_FILURE`
[INFO] [stdout]   --> src/libcni/error.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | const CODE_IO_FILURE: usize = 5;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `CODE_DECODING_FAILURE`
[INFO] [stdout]   --> src/libcni/error.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | const CODE_DECODING_FAILURE: usize = 6;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `CODE_INVALID_NETWORK_CONFIG`
[INFO] [stdout]   --> src/libcni/error.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | const CODE_INVALID_NETWORK_CONFIG: usize = 7;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `CODE_TRY_AGAIN_LATER`
[INFO] [stdout]   --> src/libcni/error.rs:14:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | const CODE_TRY_AGAIN_LATER: usize = 11;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `CODE_INTERNAL`
[INFO] [stdout]   --> src/libcni/error.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | const CODE_INTERNAL: usize = 999;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `stderr`
[INFO] [stdout]   --> src/libcni/exec.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     stderr: W,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `buf`
[INFO] [stdout]   --> src/libcni/exec.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 61 |     buf: &'a [u8],
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/libcni/exec.rs:65:8
[INFO] [stdout]    |
[INFO] [stdout] 65 |     fn new(buf: &'a [u8]) -> BufferedStdin {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `container_id`
[INFO] [stdout]  --> src/libcni/types.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     container_id: String,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `net_ns`
[INFO] [stdout]  --> src/libcni/types.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     net_ns: String,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `if_name`
[INFO] [stdout]  --> src/libcni/types.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     if_name: String,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `args`
[INFO] [stdout]  --> src/libcni/types.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     args: Vec<[String; 2]>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `capability_args`
[INFO] [stdout]  --> src/libcni/types.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     capability_args: HashMap<String, String>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `cache_dir`
[INFO] [stdout]   --> src/libcni/types.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     cache_dir: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `IMPLEMENTED_SPEC_VERSION`
[INFO] [stdout]  --> src/libcni/result/result100.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | const IMPLEMENTED_SPEC_VERSION: &'static str = "1.0.0";
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.85s
[INFO] [stdout] warning: 28 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1b2dc773cefa853d7b70ebf70951ac1670ef3354fe8f7b0595abab6477530e96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b2dc773cefa853d7b70ebf70951ac1670ef3354fe8f7b0595abab6477530e96", kill_on_drop: false }`
[INFO] [stdout] 1b2dc773cefa853d7b70ebf70951ac1670ef3354fe8f7b0595abab6477530e96
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 32f616ad2039d8e60c0b23e8c1737f265264581ca59b8bbb549b28b5c2eeaf4c
[INFO] running `Command { std: "docker" "start" "-a" "32f616ad2039d8e60c0b23e8c1737f265264581ca59b8bbb549b28b5c2eeaf4c", kill_on_drop: false }`
[INFO] [stderr]    Compiling cni v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::libcni::types`
[INFO] [stdout]  --> src/libcni/api.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::libcni::types;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Command`
[INFO] [stdout]  --> src/libcni/exec.rs:5:15
[INFO] [stdout]   |
[INFO] [stdout] 5 |     process::{Command, Stdio},
[INFO] [stdout]   |               ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::libcni::types::DNS`
[INFO] [stdout]  --> src/libcni/result/result100.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::libcni::types::DNS;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `io::Read`
[INFO] [stdout]  --> src/libcni/exec.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     io::Read,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `plugin`
[INFO] [stdout]   --> src/libcni/exec.rs:51:28
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn find_in_path(&self, plugin: String, paths: Vec<String>) -> Result<String> {
[INFO] [stdout]    |                            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_plugin`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `paths`
[INFO] [stdout]   --> src/libcni/exec.rs:51:44
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn find_in_path(&self, plugin: String, paths: Vec<String>) -> Result<String> {
[INFO] [stdout]    |                                            ^^^^^ help: if this is intentional, prefix it with an underscore: `_paths`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]   --> src/libcni/exec.rs:55:22
[INFO] [stdout]    |
[INFO] [stdout] 55 |     fn decode(&self, data: &[u8]) -> Result<()> {
[INFO] [stdout]    |                      ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `w`
[INFO] [stdout]   --> src/libcni/plugin.rs:19:41
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn encode<W: std::io::Write>(&self, w: W) -> super::Result<()> {
[INFO] [stdout]    |                                         ^ help: if this is intentional, prefix it with an underscore: `_w`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `CODE_UNKNOWN`
[INFO] [stdout]  --> src/libcni/error.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | const CODE_UNKNOWN: usize = 0;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `CODE_INCOMPATIBLE_CNI_VERSION`
[INFO] [stdout]  --> src/libcni/error.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | const CODE_INCOMPATIBLE_CNI_VERSION: usize = 1;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `CODE_UNSUPPORTED_FIELD`
[INFO] [stdout]  --> src/libcni/error.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | const CODE_UNSUPPORTED_FIELD: usize = 2;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `CODE_UNKNOWN_CONTAINER`
[INFO] [stdout]  --> src/libcni/error.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | const CODE_UNKNOWN_CONTAINER: usize = 3;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `CODE_INVALID_ENVIRONMENT_VARIABLES`
[INFO] [stdout]   --> src/libcni/error.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | const CODE_INVALID_ENVIRONMENT_VARIABLES: usize = 4;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `CODE_IO_FILURE`
[INFO] [stdout]   --> src/libcni/error.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | const CODE_IO_FILURE: usize = 5;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `CODE_DECODING_FAILURE`
[INFO] [stdout]   --> src/libcni/error.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | const CODE_DECODING_FAILURE: usize = 6;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `CODE_INVALID_NETWORK_CONFIG`
[INFO] [stdout]   --> src/libcni/error.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | const CODE_INVALID_NETWORK_CONFIG: usize = 7;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `CODE_TRY_AGAIN_LATER`
[INFO] [stdout]   --> src/libcni/error.rs:14:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | const CODE_TRY_AGAIN_LATER: usize = 11;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `CODE_INTERNAL`
[INFO] [stdout]   --> src/libcni/error.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | const CODE_INTERNAL: usize = 999;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `stderr`
[INFO] [stdout]   --> src/libcni/exec.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     stderr: W,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `buf`
[INFO] [stdout]   --> src/libcni/exec.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 61 |     buf: &'a [u8],
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/libcni/exec.rs:65:8
[INFO] [stdout]    |
[INFO] [stdout] 65 |     fn new(buf: &'a [u8]) -> BufferedStdin {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `container_id`
[INFO] [stdout]  --> src/libcni/types.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     container_id: String,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `net_ns`
[INFO] [stdout]  --> src/libcni/types.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     net_ns: String,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `if_name`
[INFO] [stdout]  --> src/libcni/types.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     if_name: String,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `args`
[INFO] [stdout]  --> src/libcni/types.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     args: Vec<[String; 2]>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `capability_args`
[INFO] [stdout]  --> src/libcni/types.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     capability_args: HashMap<String, String>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `cache_dir`
[INFO] [stdout]   --> src/libcni/types.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     cache_dir: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `IMPLEMENTED_SPEC_VERSION`
[INFO] [stdout]  --> src/libcni/result/result100.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | const IMPLEMENTED_SPEC_VERSION: &'static str = "1.0.0";
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 28 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::libcni::types`
[INFO] [stdout]  --> src/libcni/api.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::libcni::types;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Command`
[INFO] [stdout]  --> src/libcni/exec.rs:5:15
[INFO] [stdout]   |
[INFO] [stdout] 5 |     process::{Command, Stdio},
[INFO] [stdout]   |               ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::libcni::types::DNS`
[INFO] [stdout]  --> src/libcni/result/result100.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::libcni::types::DNS;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `io::Read`
[INFO] [stdout]  --> src/libcni/exec.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     io::Read,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `plugin`
[INFO] [stdout]   --> src/libcni/exec.rs:51:28
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn find_in_path(&self, plugin: String, paths: Vec<String>) -> Result<String> {
[INFO] [stdout]    |                            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_plugin`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `paths`
[INFO] [stdout]   --> src/libcni/exec.rs:51:44
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn find_in_path(&self, plugin: String, paths: Vec<String>) -> Result<String> {
[INFO] [stdout]    |                                            ^^^^^ help: if this is intentional, prefix it with an underscore: `_paths`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]   --> src/libcni/exec.rs:55:22
[INFO] [stdout]    |
[INFO] [stdout] 55 |     fn decode(&self, data: &[u8]) -> Result<()> {
[INFO] [stdout]    |                      ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `w`
[INFO] [stdout]   --> src/libcni/plugin.rs:19:41
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn encode<W: std::io::Write>(&self, w: W) -> super::Result<()> {
[INFO] [stdout]    |                                         ^ help: if this is intentional, prefix it with an underscore: `_w`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `CODE_UNKNOWN`
[INFO] [stdout]  --> src/libcni/error.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | const CODE_UNKNOWN: usize = 0;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `CODE_INCOMPATIBLE_CNI_VERSION`
[INFO] [stdout]  --> src/libcni/error.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | const CODE_INCOMPATIBLE_CNI_VERSION: usize = 1;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `CODE_UNSUPPORTED_FIELD`
[INFO] [stdout]  --> src/libcni/error.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | const CODE_UNSUPPORTED_FIELD: usize = 2;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `CODE_UNKNOWN_CONTAINER`
[INFO] [stdout]  --> src/libcni/error.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | const CODE_UNKNOWN_CONTAINER: usize = 3;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `CODE_INVALID_ENVIRONMENT_VARIABLES`
[INFO] [stdout]   --> src/libcni/error.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | const CODE_INVALID_ENVIRONMENT_VARIABLES: usize = 4;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `CODE_IO_FILURE`
[INFO] [stdout]   --> src/libcni/error.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | const CODE_IO_FILURE: usize = 5;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `CODE_DECODING_FAILURE`
[INFO] [stdout]   --> src/libcni/error.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | const CODE_DECODING_FAILURE: usize = 6;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `CODE_INVALID_NETWORK_CONFIG`
[INFO] [stdout]   --> src/libcni/error.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | const CODE_INVALID_NETWORK_CONFIG: usize = 7;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `CODE_TRY_AGAIN_LATER`
[INFO] [stdout]   --> src/libcni/error.rs:14:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | const CODE_TRY_AGAIN_LATER: usize = 11;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `CODE_INTERNAL`
[INFO] [stdout]   --> src/libcni/error.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | const CODE_INTERNAL: usize = 999;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `stderr`
[INFO] [stdout]   --> src/libcni/exec.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     stderr: W,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `buf`
[INFO] [stdout]   --> src/libcni/exec.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 61 |     buf: &'a [u8],
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/libcni/exec.rs:65:8
[INFO] [stdout]    |
[INFO] [stdout] 65 |     fn new(buf: &'a [u8]) -> BufferedStdin {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `container_id`
[INFO] [stdout]  --> src/libcni/types.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     container_id: String,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `net_ns`
[INFO] [stdout]  --> src/libcni/types.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     net_ns: String,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `if_name`
[INFO] [stdout]  --> src/libcni/types.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     if_name: String,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `args`
[INFO] [stdout]  --> src/libcni/types.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     args: Vec<[String; 2]>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `capability_args`
[INFO] [stdout]  --> src/libcni/types.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     capability_args: HashMap<String, String>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `cache_dir`
[INFO] [stdout]   --> src/libcni/types.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     cache_dir: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `IMPLEMENTED_SPEC_VERSION`
[INFO] [stdout]  --> src/libcni/result/result100.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | const IMPLEMENTED_SPEC_VERSION: &'static str = "1.0.0";
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 28 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.77s
[INFO] running `Command { std: "docker" "inspect" "32f616ad2039d8e60c0b23e8c1737f265264581ca59b8bbb549b28b5c2eeaf4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32f616ad2039d8e60c0b23e8c1737f265264581ca59b8bbb549b28b5c2eeaf4c", kill_on_drop: false }`
[INFO] [stdout] 32f616ad2039d8e60c0b23e8c1737f265264581ca59b8bbb549b28b5c2eeaf4c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0166bfc321bfdeedbff52f770b80b8e41b03e8f14248724fb45aabd10b5ae25b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0166bfc321bfdeedbff52f770b80b8e41b03e8f14248724fb45aabd10b5ae25b", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused import: `crate::libcni::types`
[INFO] [stdout] running 1 test
[INFO] [stderr]  --> src/libcni/api.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use crate::libcni::types;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Command`
[INFO] [stderr]  --> src/libcni/exec.rs:5:15
[INFO] [stderr]   |
[INFO] [stderr] 5 |     process::{Command, Stdio},
[INFO] [stderr]   |               ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::libcni::types::DNS`
[INFO] [stderr]  --> src/libcni/result/result100.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use crate::libcni::types::DNS;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `io::Read`
[INFO] [stderr]  --> src/libcni/exec.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     io::Read,
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `plugin`
[INFO] [stderr]   --> src/libcni/exec.rs:51:28
[INFO] [stderr]    |
[INFO] [stderr] 51 |     fn find_in_path(&self, plugin: String, paths: Vec<String>) -> Result<String> {
[INFO] [stderr]    |                            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_plugin`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `paths`
[INFO] [stderr]   --> src/libcni/exec.rs:51:44
[INFO] [stderr]    |
[INFO] [stderr] 51 |     fn find_in_path(&self, plugin: String, paths: Vec<String>) -> Result<String> {
[INFO] [stderr]    |                                            ^^^^^ help: if this is intentional, prefix it with an underscore: `_paths`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `data`
[INFO] [stderr]   --> src/libcni/exec.rs:55:22
[INFO] [stderr]    |
[INFO] [stderr] 55 |     fn decode(&self, data: &[u8]) -> Result<()> {
[INFO] [stderr]    |                      ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `w`
[INFO] [stderr]   --> src/libcni/plugin.rs:19:41
[INFO] [stderr]    |
[INFO] [stderr] 19 |     fn encode<W: std::io::Write>(&self, w: W) -> super::Result<()> {
[INFO] [stderr]    |                                         ^ help: if this is intentional, prefix it with an underscore: `_w`
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `CODE_UNKNOWN`
[INFO] [stderr]  --> src/libcni/error.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | const CODE_UNKNOWN: usize = 0;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `CODE_INCOMPATIBLE_CNI_VERSION`
[INFO] [stderr]  --> src/libcni/error.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | const CODE_INCOMPATIBLE_CNI_VERSION: usize = 1;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `CODE_UNSUPPORTED_FIELD`
[INFO] [stderr]  --> src/libcni/error.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | const CODE_UNSUPPORTED_FIELD: usize = 2;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `CODE_UNKNOWN_CONTAINER`
[INFO] [stderr]  --> src/libcni/error.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | const CODE_UNKNOWN_CONTAINER: usize = 3;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `CODE_INVALID_ENVIRONMENT_VARIABLES`
[INFO] [stderr]   --> src/libcni/error.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | const CODE_INVALID_ENVIRONMENT_VARIABLES: usize = 4;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `CODE_IO_FILURE`
[INFO] [stderr]   --> src/libcni/error.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | const CODE_IO_FILURE: usize = 5;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `CODE_DECODING_FAILURE`
[INFO] [stderr]   --> src/libcni/error.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | const CODE_DECODING_FAILURE: usize = 6;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `CODE_INVALID_NETWORK_CONFIG`
[INFO] [stderr]   --> src/libcni/error.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | const CODE_INVALID_NETWORK_CONFIG: usize = 7;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `CODE_TRY_AGAIN_LATER`
[INFO] [stderr]   --> src/libcni/error.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | const CODE_TRY_AGAIN_LATER: usize = 11;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `CODE_INTERNAL`
[INFO] [stderr]   --> src/libcni/error.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | const CODE_INTERNAL: usize = 999;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `stderr`
[INFO] [stderr]   --> src/libcni/exec.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     stderr: W,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `buf`
[INFO] [stderr]   --> src/libcni/exec.rs:61:5
[INFO] [stderr]    |
[INFO] [stderr] 61 |     buf: &'a [u8],
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/libcni/exec.rs:65:8
[INFO] [stderr]    |
[INFO] [stderr] 65 |     fn new(buf: &'a [u8]) -> BufferedStdin {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `container_id`
[INFO] [stderr]  --> src/libcni/types.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     container_id: String,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `net_ns`
[INFO] [stderr]  --> src/libcni/types.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     net_ns: String,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `if_name`
[INFO] [stderr]  --> src/libcni/types.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     if_name: String,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `args`
[INFO] [stderr]  --> src/libcni/types.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     args: Vec<[String; 2]>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `capability_args`
[INFO] [stderr]  --> src/libcni/types.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     capability_args: HashMap<String, String>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `cache_dir`
[INFO] [stderr]   --> src/libcni/types.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     cache_dir: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `IMPLEMENTED_SPEC_VERSION`
[INFO] [stderr]  --> src/libcni/result/result100.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | const IMPLEMENTED_SPEC_VERSION: &'static str = "1.0.0";
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `cni` (lib) generated 28 warnings
[INFO] [stderr] warning: `cni` (lib test) generated 28 warnings (28 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/cni-d8c1f718fb8418d7)
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stderr]    Doc-tests cni
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[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] running `Command { std: "docker" "inspect" "0166bfc321bfdeedbff52f770b80b8e41b03e8f14248724fb45aabd10b5ae25b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0166bfc321bfdeedbff52f770b80b8e41b03e8f14248724fb45aabd10b5ae25b", kill_on_drop: false }`
[INFO] [stdout] 0166bfc321bfdeedbff52f770b80b8e41b03e8f14248724fb45aabd10b5ae25b