[INFO] fetching crate vopono 0.1.0...
[INFO] checking vopono-0.1.0 against master#74e80468347471779be6060d8d7d6d04e98e467f for pr-72788
[INFO] extracting crate vopono 0.1.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate vopono 0.1.0 on toolchain 74e80468347471779be6060d8d7d6d04e98e467f
[INFO] running `"/workspace/cargo-home/bin/cargo" "+74e80468347471779be6060d8d7d6d04e98e467f" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate vopono 0.1.0
[INFO] finished tweaking crates.io crate vopono 0.1.0
[INFO] tweaked toml for crates.io crate vopono 0.1.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate vopono 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+74e80468347471779be6060d8d7d6d04e98e467f" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+74e80468347471779be6060d8d7d6d04e98e467f" "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] 6394a7b584e59e27518343af8a36632fafdb401c269f59048993cb4e8e233dfd
[INFO] running `"docker" "start" "-a" "6394a7b584e59e27518343af8a36632fafdb401c269f59048993cb4e8e233dfd"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]    Compiling proc-macro2 v1.0.13
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.23
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling serde v1.0.110
[INFO] [stderr]    Compiling ryu v1.0.4
[INFO] [stderr]    Compiling anyhow v1.0.31
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.37
[INFO] [stderr]     Checking bitflags v1.2.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking terminal_size v0.1.12
[INFO] [stderr]     Checking termios v0.3.2
[INFO] [stderr]     Checking dirs-sys-next v0.1.0
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking nix v0.17.0
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking directories-next v1.0.0
[INFO] [stderr]     Checking users v0.10.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking backtrace v0.3.41
[INFO] [stderr]    Compiling quote v1.0.6
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking which v3.1.1
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking regex v1.3.7
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking console v0.11.3
[INFO] [stderr]     Checking dialoguer v0.6.2
[INFO] [stderr]     Checking pretty_env_logger v0.4.0
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.110
[INFO] [stderr]    Compiling structopt-derive v0.4.7
[INFO] [stderr]     Checking structopt v0.3.14
[INFO] [stderr]     Checking bstr v0.2.13
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]     Checking vopono v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `cmd`
[INFO] [stderr]   --> src/main.rs:44:36
[INFO] [stderr]    |
[INFO] [stderr] 44 |         args::Command::SetDefaults(cmd) => todo!(),
[INFO] [stderr]    |                                    ^^^ help: if this is intentional, prefix it with an underscore: `_cmd`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `exec_no_block_silent`
[INFO] [stderr]   --> src/netns.rs:43:12
[INFO] [stderr]    |
[INFO] [stderr] 43 |     pub fn exec_no_block_silent(&self, command: &[&str]) -> anyhow::Result<std::process::Child> {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Protocol`
[INFO] [stderr]   --> src/vpn.rs:29:10
[INFO] [stderr]    |
[INFO] [stderr] 29 | pub enum Protocol {
[INFO] [stderr]    |          ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Firewall`
[INFO] [stderr]   --> src/vpn.rs:34:10
[INFO] [stderr]    |
[INFO] [stderr] 34 | pub enum Firewall {
[INFO] [stderr]    |          ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `check_if_running`
[INFO] [stderr]    --> src/main.rs:112:12
[INFO] [stderr]     |
[INFO] [stderr] 112 |     pub fn check_if_running(&mut self) -> anyhow::Result<bool> {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cmd`
[INFO] [stderr]   --> src/main.rs:44:36
[INFO] [stderr]    |
[INFO] [stderr] 44 |         args::Command::SetDefaults(cmd) => todo!(),
[INFO] [stderr]    |                                    ^^^ help: if this is intentional, prefix it with an underscore: `_cmd`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `exec_no_block_silent`
[INFO] [stderr]   --> src/netns.rs:43:12
[INFO] [stderr]    |
[INFO] [stderr] 43 |     pub fn exec_no_block_silent(&self, command: &[&str]) -> anyhow::Result<std::process::Child> {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Protocol`
[INFO] [stderr]   --> src/vpn.rs:29:10
[INFO] [stderr]    |
[INFO] [stderr] 29 | pub enum Protocol {
[INFO] [stderr]    |          ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Firewall`
[INFO] [stderr]   --> src/vpn.rs:34:10
[INFO] [stderr]    |
[INFO] [stderr] 34 | pub enum Firewall {
[INFO] [stderr]    |          ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `check_if_running`
[INFO] [stderr]    --> src/main.rs:112:12
[INFO] [stderr]     |
[INFO] [stderr] 112 |     pub fn check_if_running(&mut self) -> anyhow::Result<bool> {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 15s
[INFO] running `"docker" "inspect" "6394a7b584e59e27518343af8a36632fafdb401c269f59048993cb4e8e233dfd"`
[INFO] running `"docker" "rm" "-f" "6394a7b584e59e27518343af8a36632fafdb401c269f59048993cb4e8e233dfd"`
[INFO] [stdout] 6394a7b584e59e27518343af8a36632fafdb401c269f59048993cb4e8e233dfd