[INFO] updating cached repository https://github.com/garritfra/wireguard-manager
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e1c2a9d20e0626068a3cbec5ba6b25a5067199a3
[INFO] checking garritfra/wireguard-manager against try#d93021f5faa26e4f9d2719e79f9974e06aa40e17 for pr-71873
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgarritfra%2Fwireguard-manager" "/workspace/builds/worker-12/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/garritfra/wireguard-manager on toolchain d93021f5faa26e4f9d2719e79f9974e06aa40e17
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d93021f5faa26e4f9d2719e79f9974e06aa40e17" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/garritfra/wireguard-manager
[INFO] finished tweaking git repo https://github.com/garritfra/wireguard-manager
[INFO] tweaked toml for git repo https://github.com/garritfra/wireguard-manager written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/garritfra/wireguard-manager already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d93021f5faa26e4f9d2719e79f9974e06aa40e17" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+d93021f5faa26e4f9d2719e79f9974e06aa40e17" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] cdafb6e03c735e50c4c3d331f52aaa3f95d01ce5e04225c8823c9dcc8e346158
[INFO] running `"docker" "start" "-a" "cdafb6e03c735e50c4c3d331f52aaa3f95d01ce5e04225c8823c9dcc8e346158"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking dtoa v0.4.5
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.12
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling quote v1.0.4
[INFO] [stderr]    Compiling syn v1.0.18
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]     Checking serde v1.0.106
[INFO] [stderr]     Checking serde_yaml v0.8.11
[INFO] [stderr]     Checking wireguard-manager v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/interface.rs:15:12
[INFO] [stderr]    |
[INFO] [stderr] 15 |     pub fn new(
[INFO] [stderr]    |            ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse`
[INFO] [stderr]  --> src/parser/parser.rs:7:8
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub fn parse(path: &Path) -> Result<Interface, String> {
[INFO] [stderr]   |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new_named`
[INFO] [stderr]   --> src/peer.rs:11:12
[INFO] [stderr]    |
[INFO] [stderr] 11 |     pub fn new_named(name: &'a str, public_key: [u8; 32], allowed_ips: &'a str) -> Self {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/peer.rs:19:12
[INFO] [stderr]    |
[INFO] [stderr] 19 |     pub fn new(public_key: [u8; 32], allowed_ips: &'a str) -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/interface.rs:15:12
[INFO] [stderr]    |
[INFO] [stderr] 15 |     pub fn new(
[INFO] [stderr]    |            ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse`
[INFO] [stderr]  --> src/parser/parser.rs:7:8
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub fn parse(path: &Path) -> Result<Interface, String> {
[INFO] [stderr]   |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new_named`
[INFO] [stderr]   --> src/peer.rs:11:12
[INFO] [stderr]    |
[INFO] [stderr] 11 |     pub fn new_named(name: &'a str, public_key: [u8; 32], allowed_ips: &'a str) -> Self {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/peer.rs:19:12
[INFO] [stderr]    |
[INFO] [stderr] 19 |     pub fn new(public_key: [u8; 32], allowed_ips: &'a str) -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.41s
[INFO] running `"docker" "inspect" "cdafb6e03c735e50c4c3d331f52aaa3f95d01ce5e04225c8823c9dcc8e346158"`
[INFO] running `"docker" "rm" "-f" "cdafb6e03c735e50c4c3d331f52aaa3f95d01ce5e04225c8823c9dcc8e346158"`
[INFO] [stdout] cdafb6e03c735e50c4c3d331f52aaa3f95d01ce5e04225c8823c9dcc8e346158