[INFO] cloning repository https://github.com/spencerkohan/ddns-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/spencerkohan/ddns-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspencerkohan%2Fddns-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspencerkohan%2Fddns-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2fd7158751c7f087c367a09b8f790ccf8d0a9db4
[INFO] testing spencerkohan/ddns-rs against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspencerkohan%2Fddns-rs" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/spencerkohan/ddns-rs on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/spencerkohan/ddns-rs
[INFO] finished tweaking git repo https://github.com/spencerkohan/ddns-rs
[INFO] tweaked toml for git repo https://github.com/spencerkohan/ddns-rs written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/spencerkohan/ddns-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 37c3a581fe571a8ed4661706231216563c6bac5d1ebe8a917bd4a1d69b0d7be9
[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" "37c3a581fe571a8ed4661706231216563c6bac5d1ebe8a917bd4a1d69b0d7be9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "37c3a581fe571a8ed4661706231216563c6bac5d1ebe8a917bd4a1d69b0d7be9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37c3a581fe571a8ed4661706231216563c6bac5d1ebe8a917bd4a1d69b0d7be9", kill_on_drop: false }`
[INFO] [stdout] 37c3a581fe571a8ed4661706231216563c6bac5d1ebe8a917bd4a1d69b0d7be9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--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] 7ddff7618acf6bbdc63042584ab89f5295faccc2d44e63ed551bc8319e07cd74
[INFO] running `Command { std: "docker" "start" "-a" "7ddff7618acf6bbdc63042584ab89f5295faccc2d44e63ed551bc8319e07cd74", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]    Compiling futures-sink v0.3.5
[INFO] [stderr]    Compiling once_cell v1.4.0
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling futures-core v0.3.5
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling futures-io v0.3.5
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]    Compiling ascii v0.9.3
[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stderr]    Compiling chunked_transfer v1.2.0
[INFO] [stderr]    Compiling ring v0.14.6
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling futures-channel v0.3.5
[INFO] [stderr]    Compiling futures-task v0.3.5
[INFO] [stderr]    Compiling qstring v0.6.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling idna v0.1.5
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling cookie v0.11.3
[INFO] [stderr]    Compiling base64 v0.10.1
[INFO] [stderr]    Compiling url v1.7.2
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling webpki v0.19.1
[INFO] [stderr]    Compiling sct v0.5.0
[INFO] [stderr]    Compiling webpki-roots v0.16.0
[INFO] [stderr]    Compiling rustls v0.15.2
[INFO] [stderr]    Compiling ureq v0.9.1
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling structopt-derive v0.4.9
[INFO] [stderr]    Compiling structopt v0.3.16
[INFO] [stderr]    Compiling pin-project v0.4.23
[INFO] [stderr]    Compiling futures-util v0.3.5
[INFO] [stderr]    Compiling futures-executor v0.3.5
[INFO] [stderr]    Compiling futures v0.3.5
[INFO] [stderr]    Compiling ddns v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::path::PathBuf`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::path::PathBuf;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::path::PathBuf`
[INFO] [stdout]  --> src/dns.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::path::PathBuf;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/dns.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]  --> src/dns.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::fs;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `v4` should have an upper camel case name
[INFO] [stdout]   --> src/dns.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     v4, 
[INFO] [stdout]    |     ^^ help: convert the identifier to upper camel case (notice the capitalization): `V4`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `v6` should have an upper camel case name
[INFO] [stdout]   --> src/dns.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     v6  
[INFO] [stdout]    |     ^^ help: convert the identifier to upper camel case (notice the capitalization): `V6`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `IP_Set` should have an upper camel case name
[INFO] [stdout]   --> src/dns.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub struct IP_Set {
[INFO] [stdout]    |            ^^^^^^ help: convert the identifier to upper camel case: `IpSet`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `DNS_Record` should have an upper camel case name
[INFO] [stdout]   --> src/cloudflare.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | struct DNS_Record {
[INFO] [stdout]    |        ^^^^^^^^^^ help: convert the identifier to upper camel case: `DnsRecord`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `DNS_Record_Post` should have an upper camel case name
[INFO] [stdout]   --> src/cloudflare.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | struct DNS_Record_Post {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `DnsRecordPost`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `DNS_Record_Patch` should have an upper camel case name
[INFO] [stdout]   --> src/cloudflare.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 40 | struct DNS_Record_Patch {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `DnsRecordPatch`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/cloudflare.rs:86:5
[INFO] [stdout]     |
[INFO] [stdout] 86  |       /// Create record if none found
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 87  | /     if !found {
[INFO] [stdout] 88  | |
[INFO] [stdout] 89  | |         println!("no existing {} record found, creating a new one", ipv.dns_record_type());
[INFO] [stdout] 90  | |         
[INFO] [stdout] ...   |
[INFO] [stdout] 104 | |         println!("response data: {:?}", response.into_string());
[INFO] [stdout] 105 | |     }
[INFO] [stdout]     | |_____- rustdoc does not generate documentation for expressions
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]  --> src/systemd.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fs::File;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:182:17
[INFO] [stdout]     |
[INFO] [stdout] 182 |                 systemd::create_service(user);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:185:17
[INFO] [stdout]     |
[INFO] [stdout] 185 |                 systemd::remove_service();
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 49s
[INFO] running `Command { std: "docker" "inspect" "7ddff7618acf6bbdc63042584ab89f5295faccc2d44e63ed551bc8319e07cd74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ddff7618acf6bbdc63042584ab89f5295faccc2d44e63ed551bc8319e07cd74", kill_on_drop: false }`
[INFO] [stdout] 7ddff7618acf6bbdc63042584ab89f5295faccc2d44e63ed551bc8319e07cd74
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0e7c81032b19a5fb8e83ed4356792ffb841c2e3751483d71b99daaf6a70209b2
[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" "0e7c81032b19a5fb8e83ed4356792ffb841c2e3751483d71b99daaf6a70209b2", kill_on_drop: false }`
[INFO] [stderr]    Compiling ddns v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::path::PathBuf`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::path::PathBuf;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::path::PathBuf`
[INFO] [stdout]  --> src/dns.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::path::PathBuf;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/dns.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]  --> src/dns.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::fs;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `v4` should have an upper camel case name
[INFO] [stdout]   --> src/dns.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     v4, 
[INFO] [stdout]    |     ^^ help: convert the identifier to upper camel case (notice the capitalization): `V4`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `v6` should have an upper camel case name
[INFO] [stdout]   --> src/dns.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     v6  
[INFO] [stdout]    |     ^^ help: convert the identifier to upper camel case (notice the capitalization): `V6`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `IP_Set` should have an upper camel case name
[INFO] [stdout]   --> src/dns.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub struct IP_Set {
[INFO] [stdout]    |            ^^^^^^ help: convert the identifier to upper camel case: `IpSet`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `DNS_Record` should have an upper camel case name
[INFO] [stdout]   --> src/cloudflare.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | struct DNS_Record {
[INFO] [stdout]    |        ^^^^^^^^^^ help: convert the identifier to upper camel case: `DnsRecord`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `DNS_Record_Post` should have an upper camel case name
[INFO] [stdout]   --> src/cloudflare.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | struct DNS_Record_Post {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `DnsRecordPost`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `DNS_Record_Patch` should have an upper camel case name
[INFO] [stdout]   --> src/cloudflare.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 40 | struct DNS_Record_Patch {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `DnsRecordPatch`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/cloudflare.rs:86:5
[INFO] [stdout]     |
[INFO] [stdout] 86  |       /// Create record if none found
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 87  | /     if !found {
[INFO] [stdout] 88  | |
[INFO] [stdout] 89  | |         println!("no existing {} record found, creating a new one", ipv.dns_record_type());
[INFO] [stdout] 90  | |         
[INFO] [stdout] ...   |
[INFO] [stdout] 104 | |         println!("response data: {:?}", response.into_string());
[INFO] [stdout] 105 | |     }
[INFO] [stdout]     | |_____- rustdoc does not generate documentation for expressions
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]  --> src/systemd.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fs::File;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:182:17
[INFO] [stdout]     |
[INFO] [stdout] 182 |                 systemd::create_service(user);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:185:17
[INFO] [stdout]     |
[INFO] [stdout] 185 |                 systemd::remove_service();
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.57s
[INFO] running `Command { std: "docker" "inspect" "0e7c81032b19a5fb8e83ed4356792ffb841c2e3751483d71b99daaf6a70209b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e7c81032b19a5fb8e83ed4356792ffb841c2e3751483d71b99daaf6a70209b2", kill_on_drop: false }`
[INFO] [stdout] 0e7c81032b19a5fb8e83ed4356792ffb841c2e3751483d71b99daaf6a70209b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2c18f19d8bf8d822657b7c18cfb89a9bd2a49255381252ff355dbb23804e9755
[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" "2c18f19d8bf8d822657b7c18cfb89a9bd2a49255381252ff355dbb23804e9755", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::path::PathBuf`
[INFO] [stderr]  --> src/main.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::path::PathBuf;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::path::PathBuf`
[INFO] [stderr]  --> src/dns.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::path::PathBuf;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::error::Error`
[INFO] [stderr]  --> src/dns.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::error::Error;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fs`
[INFO] [stderr]  --> src/dns.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::fs;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant `v4` should have an upper camel case name
[INFO] [stderr]   --> src/dns.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     v4, 
[INFO] [stderr]    |     ^^ help: convert the identifier to upper camel case (notice the capitalization): `V4`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant `v6` should have an upper camel case name
[INFO] [stderr]   --> src/dns.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     v6  
[INFO] [stderr]    |     ^^ help: convert the identifier to upper camel case (notice the capitalization): `V6`
[INFO] [stderr] 
[INFO] [stderr] warning: type `IP_Set` should have an upper camel case name
[INFO] [stderr]   --> src/dns.rs:37:12
[INFO] [stderr]    |
[INFO] [stderr] 37 | pub struct IP_Set {
[INFO] [stderr]    |            ^^^^^^ help: convert the identifier to upper camel case: `IpSet`
[INFO] [stderr] 
[INFO] [stderr] warning: type `DNS_Record` should have an upper camel case name
[INFO] [stderr]   --> src/cloudflare.rs:20:8
[INFO] [stderr]    |
[INFO] [stderr] 20 | struct DNS_Record {
[INFO] [stderr]    |        ^^^^^^^^^^ help: convert the identifier to upper camel case: `DnsRecord`
[INFO] [stderr] 
[INFO] [stderr] warning: type `DNS_Record_Post` should have an upper camel case name
[INFO] [stderr]   --> src/cloudflare.rs:31:8
[INFO] [stderr]    |
[INFO] [stderr] 31 | struct DNS_Record_Post {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `DnsRecordPost`
[INFO] [stderr] 
[INFO] [stderr] warning: type `DNS_Record_Patch` should have an upper camel case name
[INFO] [stderr]   --> src/cloudflare.rs:40:8
[INFO] [stderr]    |
[INFO] [stderr] 40 | struct DNS_Record_Patch {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `DnsRecordPatch`
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/cloudflare.rs:86:5
[INFO] [stderr]     |
[INFO] [stderr] 86  |       /// Create record if none found
[INFO] [stderr]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 87  | /     if !found {
[INFO] [stderr] 88  | |
[INFO] [stderr] 89  | |         println!("no existing {} record found, creating a new one", ipv.dns_record_type());
[INFO] [stderr] 90  | |         
[INFO] [stderr] ...   |
[INFO] [stderr] 104 | |         println!("response data: {:?}", response.into_string());
[INFO] [stderr] 105 | |     }
[INFO] [stderr]     | |_____- rustdoc does not generate documentation for expressions
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fs::File`
[INFO] [stderr]  --> src/systemd.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::fs::File;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/main.rs:182:17
[INFO] [stderr]     |
[INFO] [stderr] 182 |                 systemd::create_service(user);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/main.rs:185:17
[INFO] [stderr]     |
[INFO] [stderr] 185 |                 systemd::remove_service();
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 14 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ddns-8c712147f399570b)
[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" "2c18f19d8bf8d822657b7c18cfb89a9bd2a49255381252ff355dbb23804e9755", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c18f19d8bf8d822657b7c18cfb89a9bd2a49255381252ff355dbb23804e9755", kill_on_drop: false }`
[INFO] [stdout] 2c18f19d8bf8d822657b7c18cfb89a9bd2a49255381252ff355dbb23804e9755