[INFO] cloning repository https://github.com/Lyr-7D1h/cluster_iot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Lyr-7D1h/cluster_iot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLyr-7D1h%2Fcluster_iot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLyr-7D1h%2Fcluster_iot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7c36583f20c124ddd32311df94b92a59191e430d
[INFO] checking Lyr-7D1h/cluster_iot against master#9a42c6509d399fd205917ebce474b31315c5d3e9 for pr-97427
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLyr-7D1h%2Fcluster_iot" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Lyr-7D1h/cluster_iot on toolchain 9a42c6509d399fd205917ebce474b31315c5d3e9
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9a42c6509d399fd205917ebce474b31315c5d3e9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-5/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-5/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/Lyr-7D1h/cluster_iot
[INFO] finished tweaking git repo https://github.com/Lyr-7D1h/cluster_iot
[INFO] tweaked toml for git repo https://github.com/Lyr-7D1h/cluster_iot written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/Lyr-7D1h/cluster_iot already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9a42c6509d399fd205917ebce474b31315c5d3e9" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ssh2 v0.9.3
[INFO] [stderr]   Downloaded openssl-src v111.17.0+1.1.1m
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+9a42c6509d399fd205917ebce474b31315c5d3e9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4f127910fa140a024f7f583794f05b057ad0897d5670af7abdb2891971761f07
[INFO] running `Command { std: "docker" "start" "-a" "4f127910fa140a024f7f583794f05b057ad0897d5670af7abdb2891971761f07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4f127910fa140a024f7f583794f05b057ad0897d5670af7abdb2891971761f07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f127910fa140a024f7f583794f05b057ad0897d5670af7abdb2891971761f07", kill_on_drop: false }`
[INFO] [stdout] 4f127910fa140a024f7f583794f05b057ad0897d5670af7abdb2891971761f07
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+9a42c6509d399fd205917ebce474b31315c5d3e9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] deb970f8ef4969e0434188cc779bd25ba6363b535dc0db8b750bc26f54cc28fe
[INFO] running `Command { std: "docker" "start" "-a" "deb970f8ef4969e0434188cc779bd25ba6363b535dc0db8b750bc26f54cc28fe", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling pkg-config v0.3.24
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[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling memchr v2.4.0
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[INFO] [stderr]    Compiling serde_derive v1.0.126
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[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
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[INFO] [stderr]     Checking prompter v0.1.0 (/opt/rustwide/workdir/libs/prompter)
[INFO] [stderr]     Checking path_resolver v0.1.0 (/opt/rustwide/workdir/libs/path_resolver)
[INFO] [stderr]     Checking instant v0.1.12
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[INFO] [stderr]    Compiling openssl-src v111.17.0+1.1.1m
[INFO] [stderr]     Checking clap v2.33.3
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[INFO] [stderr]     Checking clusterit v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `core::time`
[INFO] [stdout]  --> src/clusterit/connection/mod.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::time;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `PathBuf`, `Path`, `ReadDir`, `hash::Hash`, `join_paths`, `self`, `self`, `self`, `time::SystemTime`
[INFO] [stdout]  --> src/clusterit/connection/mod.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 |     env::{self, join_paths},
[INFO] [stdout]   |           ^^^^  ^^^^^^^^^^
[INFO] [stdout] 4 |     fs::{self, ReadDir},
[INFO] [stdout]   |          ^^^^  ^^^^^^^
[INFO] [stdout] 5 |     hash::Hash,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 6 |     net::TcpStream,
[INFO] [stdout] 7 |     path::{self, Path, PathBuf},
[INFO] [stdout]   |            ^^^^  ^^^^  ^^^^^^^
[INFO] [stdout] 8 |     time::SystemTime,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `input`
[INFO] [stdout]  --> src/clusterit/connection/authenticate.rs:2:28
[INFO] [stdout]   |
[INFO] [stdout] 2 | use prompter::{ask_secret, input};
[INFO] [stdout]   |                            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::time`
[INFO] [stdout]  --> src/clusterit/connection/mod.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::time;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `PathBuf`, `Path`, `ReadDir`, `hash::Hash`, `join_paths`, `self`, `self`, `self`, `time::SystemTime`
[INFO] [stdout]  --> src/clusterit/connection/mod.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 |     env::{self, join_paths},
[INFO] [stdout]   |           ^^^^  ^^^^^^^^^^
[INFO] [stdout] 4 |     fs::{self, ReadDir},
[INFO] [stdout]   |          ^^^^  ^^^^^^^
[INFO] [stdout] 5 |     hash::Hash,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 6 |     net::TcpStream,
[INFO] [stdout] 7 |     path::{self, Path, PathBuf},
[INFO] [stdout]   |            ^^^^  ^^^^  ^^^^^^^
[INFO] [stdout] 8 |     time::SystemTime,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `input`
[INFO] [stdout]  --> src/clusterit/connection/authenticate.rs:2:28
[INFO] [stdout]   |
[INFO] [stdout] 2 | use prompter::{ask_secret, input};
[INFO] [stdout]   |                            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `connection`
[INFO] [stdout]   --> src/clusterit/mod.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let connection = Connection::connect_to_destination(&self.config.destination, None, None)?;
[INFO] [stdout]    |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_connection`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `debpkgs`
[INFO] [stdout]   --> src/clusterit/executer.rs:12:26
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn install(self, debpkgs: Vec<String>) -> Result<(), ()> {
[INFO] [stdout]    |                          ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_debpkgs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `connection`
[INFO] [stdout]   --> src/clusterit/mod.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let connection = Connection::connect_to_destination(&self.config.destination, None, None)?;
[INFO] [stdout]    |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_connection`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `debpkgs`
[INFO] [stdout]   --> src/clusterit/executer.rs:12:26
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn install(self, debpkgs: Vec<String>) -> Result<(), ()> {
[INFO] [stdout]    |                          ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_debpkgs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/clusterit/connection/mod.rs:90:18
[INFO] [stdout]    |
[INFO] [stdout] 90 |     pub fn write(mut self) {
[INFO] [stdout]    |                  ----^^^^
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/clusterit/connection/mod.rs:90:18
[INFO] [stdout]    |
[INFO] [stdout] 90 |     pub fn write(mut self) {
[INFO] [stdout]    |                  ----^^^^
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/clusterit/connection/mod.rs:94:17
[INFO] [stdout]    |
[INFO] [stdout] 94 |     pub fn read(mut self) {
[INFO] [stdout]    |                 ----^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/clusterit/connection/mod.rs:94:17
[INFO] [stdout]    |
[INFO] [stdout] 94 |     pub fn read(mut self) {
[INFO] [stdout]    |                 ----^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `session`
[INFO] [stdout]   --> src/clusterit/connection/mod.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     session: Session,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `session`
[INFO] [stdout]   --> src/clusterit/connection/mod.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     session: Session,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write`
[INFO] [stdout]   --> src/clusterit/connection/mod.rs:90:12
[INFO] [stdout]    |
[INFO] [stdout] 90 |     pub fn write(mut self) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write`
[INFO] [stdout]   --> src/clusterit/connection/mod.rs:90:12
[INFO] [stdout]    |
[INFO] [stdout] 90 |     pub fn write(mut self) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read`
[INFO] [stdout]   --> src/clusterit/connection/mod.rs:94:12
[INFO] [stdout]    |
[INFO] [stdout] 94 |     pub fn read(mut self) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read`
[INFO] [stdout]   --> src/clusterit/connection/mod.rs:94:12
[INFO] [stdout]    |
[INFO] [stdout] 94 |     pub fn read(mut self) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Executer`
[INFO] [stdout]  --> src/clusterit/executer.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Executer {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Executer`
[INFO] [stdout]  --> src/clusterit/executer.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Executer {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/clusterit/executer.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub fn new(connection: Connection) -> Executer {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/clusterit/executer.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub fn new(connection: Connection) -> Executer {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `install`
[INFO] [stdout]   --> src/clusterit/executer.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn install(self, debpkgs: Vec<String>) -> Result<(), ()> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `install`
[INFO] [stdout]   --> src/clusterit/executer.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn install(self, debpkgs: Vec<String>) -> Result<(), ()> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4m 16s
[INFO] running `Command { std: "docker" "inspect" "deb970f8ef4969e0434188cc779bd25ba6363b535dc0db8b750bc26f54cc28fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "deb970f8ef4969e0434188cc779bd25ba6363b535dc0db8b750bc26f54cc28fe", kill_on_drop: false }`
[INFO] [stdout] deb970f8ef4969e0434188cc779bd25ba6363b535dc0db8b750bc26f54cc28fe