[INFO] cloning repository https://github.com/aheart/hearth
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aheart/hearth" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faheart%2Fhearth", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faheart%2Fhearth'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0fb87be15331777bb6ba45b36791b156c25f044a
[INFO] testing aheart/hearth against master#1f7f8ea0721a3b1eb73e6c6d25cccb371434b320 for pr-154065
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faheart%2Fhearth" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/aheart/hearth
[INFO] finished tweaking git repo https://github.com/aheart/hearth
[INFO] tweaked toml for git repo https://github.com/aheart/hearth written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/aheart/hearth on toolchain 1f7f8ea0721a3b1eb73e6c6d25cccb371434b320
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/aheart/hearth already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded actix-web-actors v4.3.1+deprecated
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eefb530a858134e9af191b291f91c2ab936b34b8d2db09f9f12141da97caf804
[INFO] running `Command { std: "docker" "start" "-a" "eefb530a858134e9af191b291f91c2ab936b34b8d2db09f9f12141da97caf804", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eefb530a858134e9af191b291f91c2ab936b34b8d2db09f9f12141da97caf804", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eefb530a858134e9af191b291f91c2ab936b34b8d2db09f9f12141da97caf804", kill_on_drop: false }`
[INFO] [stdout] eefb530a858134e9af191b291f91c2ab936b34b8d2db09f9f12141da97caf804
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bdef347fe0aa9e7e8de611c0cb5fdd43b4c03240545e18595692b347e6ba5d01
[INFO] running `Command { std: "docker" "start" "-a" "bdef347fe0aa9e7e8de611c0cb5fdd43b4c03240545e18595692b347e6ba5d01", kill_on_drop: false }`
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[INFO] [stderr]    Compiling actix v0.13.5
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[INFO] [stderr]    Compiling icu_normalizer v1.5.0
[INFO] [stderr]    Compiling idna_adapter v1.2.0
[INFO] [stderr]    Compiling idna v1.0.3
[INFO] [stderr]    Compiling url v2.5.4
[INFO] [stderr]    Compiling actix-http v3.12.0
[INFO] [stderr]    Compiling actix-web v4.13.0
[INFO] [stderr]    Compiling actix-files v0.6.10
[INFO] [stderr]    Compiling actix-web-actors v4.3.1+deprecated
[INFO] [stderr]    Compiling hearth v0.0.9 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/ssh.rs:50:68
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub fn run(&mut self, command: &str) -> Result<String, Box<dyn (::std::error::Error)>> {
[INFO] [stdout]    |                                                                    ^                   ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 50 -     pub fn run(&mut self, command: &str) -> Result<String, Box<dyn (::std::error::Error)>> {
[INFO] [stdout] 50 +     pub fn run(&mut self, command: &str) -> Result<String, Box<dyn ::std::error::Error >> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/ssh.rs:67:65
[INFO] [stdout]    |
[INFO] [stdout] 67 |     fn exec(&mut self, command: &str) -> Result<String, Box<dyn (::std::error::Error)>> {
[INFO] [stdout]    |                                                                 ^                   ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 67 -     fn exec(&mut self, command: &str) -> Result<String, Box<dyn (::std::error::Error)>> {
[INFO] [stdout] 67 +     fn exec(&mut self, command: &str) -> Result<String, Box<dyn ::std::error::Error >> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/ssh.rs:77:46
[INFO] [stdout]    |
[INFO] [stdout] 77 |     fn init(&mut self) -> Result<(), Box<dyn (::std::error::Error)>> {
[INFO] [stdout]    |                                              ^                   ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 77 -     fn init(&mut self) -> Result<(), Box<dyn (::std::error::Error)>> {
[INFO] [stdout] 77 +     fn init(&mut self) -> Result<(), Box<dyn ::std::error::Error >> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/ssh.rs:91:58
[INFO] [stdout]    |
[INFO] [stdout] 91 |     fn try_connect(&mut self) -> Result<Session, Box<dyn (::std::error::Error)>> {
[INFO] [stdout]    |                                                          ^                   ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 91 -     fn try_connect(&mut self) -> Result<Session, Box<dyn (::std::error::Error)>> {
[INFO] [stdout] 91 +     fn try_connect(&mut self) -> Result<Session, Box<dyn ::std::error::Error >> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/ssh.rs:130:54
[INFO] [stdout]     |
[INFO] [stdout] 130 |     fn channel(&mut self) -> Result<Channel, Box<dyn (::std::error::Error)>> {
[INFO] [stdout]     |                                                      ^                   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 130 -     fn channel(&mut self) -> Result<Channel, Box<dyn (::std::error::Error)>> {
[INFO] [stdout] 130 +     fn channel(&mut self) -> Result<Channel, Box<dyn ::std::error::Error >> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `empty_metrics` is never used
[INFO] [stdout]   --> src/metrics/mod.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub trait MetricPlugin: Send + 'static {
[INFO] [stdout]    |           ------------ method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 33 |     fn empty_metrics(&self) -> Metrics;
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> src/metrics/disk.rs:58:5
[INFO] [stdout]    |
[INFO] [stdout] 57 | pub struct DiskStats {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] 58 |     reads_completed_successfully: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 59 |     reads_merged: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 60 |     sectors_read: u64,
[INFO] [stdout] 61 |     time_spend_reading: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 62 |     writes_completed: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 63 |     writes_merged: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 64 |     sectors_written: u64,
[INFO] [stdout] 65 |     time_spent_writing: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 66 |     ios_currently_in_progress: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 67 |     time_spent_doing_ios: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 68 |     weighted_time_spent_doing_ios: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DiskStats` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Everyone` is never constructed
[INFO] [stdout]   --> src/ws/server.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub enum Receiver {
[INFO] [stdout]    |          -------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 33 |     Everyone,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Receiver` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 10s
[INFO] running `Command { std: "docker" "inspect" "bdef347fe0aa9e7e8de611c0cb5fdd43b4c03240545e18595692b347e6ba5d01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bdef347fe0aa9e7e8de611c0cb5fdd43b4c03240545e18595692b347e6ba5d01", kill_on_drop: false }`
[INFO] [stdout] bdef347fe0aa9e7e8de611c0cb5fdd43b4c03240545e18595692b347e6ba5d01
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 96f0d64bc79d3af888e7df84037618aed306406001514c64223bd98eba832af2
[INFO] running `Command { std: "docker" "start" "-a" "96f0d64bc79d3af888e7df84037618aed306406001514c64223bd98eba832af2", kill_on_drop: false }`
[INFO] [stderr]    Compiling hearth v0.0.9 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/ssh.rs:50:68
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub fn run(&mut self, command: &str) -> Result<String, Box<dyn (::std::error::Error)>> {
[INFO] [stdout]    |                                                                    ^                   ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 50 -     pub fn run(&mut self, command: &str) -> Result<String, Box<dyn (::std::error::Error)>> {
[INFO] [stdout] 50 +     pub fn run(&mut self, command: &str) -> Result<String, Box<dyn ::std::error::Error >> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/ssh.rs:67:65
[INFO] [stdout]    |
[INFO] [stdout] 67 |     fn exec(&mut self, command: &str) -> Result<String, Box<dyn (::std::error::Error)>> {
[INFO] [stdout]    |                                                                 ^                   ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 67 -     fn exec(&mut self, command: &str) -> Result<String, Box<dyn (::std::error::Error)>> {
[INFO] [stdout] 67 +     fn exec(&mut self, command: &str) -> Result<String, Box<dyn ::std::error::Error >> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/ssh.rs:77:46
[INFO] [stdout]    |
[INFO] [stdout] 77 |     fn init(&mut self) -> Result<(), Box<dyn (::std::error::Error)>> {
[INFO] [stdout]    |                                              ^                   ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 77 -     fn init(&mut self) -> Result<(), Box<dyn (::std::error::Error)>> {
[INFO] [stdout] 77 +     fn init(&mut self) -> Result<(), Box<dyn ::std::error::Error >> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/ssh.rs:91:58
[INFO] [stdout]    |
[INFO] [stdout] 91 |     fn try_connect(&mut self) -> Result<Session, Box<dyn (::std::error::Error)>> {
[INFO] [stdout]    |                                                          ^                   ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 91 -     fn try_connect(&mut self) -> Result<Session, Box<dyn (::std::error::Error)>> {
[INFO] [stdout] 91 +     fn try_connect(&mut self) -> Result<Session, Box<dyn ::std::error::Error >> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/ssh.rs:130:54
[INFO] [stdout]     |
[INFO] [stdout] 130 |     fn channel(&mut self) -> Result<Channel, Box<dyn (::std::error::Error)>> {
[INFO] [stdout]     |                                                      ^                   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 130 -     fn channel(&mut self) -> Result<Channel, Box<dyn (::std::error::Error)>> {
[INFO] [stdout] 130 +     fn channel(&mut self) -> Result<Channel, Box<dyn ::std::error::Error >> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `empty_metrics` is never used
[INFO] [stdout]   --> src/metrics/mod.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub trait MetricPlugin: Send + 'static {
[INFO] [stdout]    |           ------------ method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 33 |     fn empty_metrics(&self) -> Metrics;
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> src/metrics/disk.rs:58:5
[INFO] [stdout]    |
[INFO] [stdout] 57 | pub struct DiskStats {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] 58 |     reads_completed_successfully: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 59 |     reads_merged: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 60 |     sectors_read: u64,
[INFO] [stdout] 61 |     time_spend_reading: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 62 |     writes_completed: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 63 |     writes_merged: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 64 |     sectors_written: u64,
[INFO] [stdout] 65 |     time_spent_writing: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 66 |     ios_currently_in_progress: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 67 |     time_spent_doing_ios: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 68 |     weighted_time_spent_doing_ios: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DiskStats` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Everyone` is never constructed
[INFO] [stdout]   --> src/ws/server.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub enum Receiver {
[INFO] [stdout]    |          -------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 33 |     Everyone,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Receiver` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 5.76s
[INFO] running `Command { std: "docker" "inspect" "96f0d64bc79d3af888e7df84037618aed306406001514c64223bd98eba832af2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96f0d64bc79d3af888e7df84037618aed306406001514c64223bd98eba832af2", kill_on_drop: false }`
[INFO] [stdout] 96f0d64bc79d3af888e7df84037618aed306406001514c64223bd98eba832af2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e5066f6c3a86805262c773c238acec345a7a86fd9219c3073553b5c3876f9073
[INFO] running `Command { std: "docker" "start" "-a" "e5066f6c3a86805262c773c238acec345a7a86fd9219c3073553b5c3876f9073", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/ssh.rs:50:68
[INFO] [stderr]    |
[INFO] [stderr] 50 |     pub fn run(&mut self, command: &str) -> Result<String, Box<dyn (::std::error::Error)>> {
[INFO] [stderr]    |                                                                    ^                   ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 50 -     pub fn run(&mut self, command: &str) -> Result<String, Box<dyn (::std::error::Error)>> {
[INFO] [stderr] 50 +     pub fn run(&mut self, command: &str) -> Result<String, Box<dyn ::std::error::Error >> {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/ssh.rs:67:65
[INFO] [stderr]    |
[INFO] [stderr] 67 |     fn exec(&mut self, command: &str) -> Result<String, Box<dyn (::std::error::Error)>> {
[INFO] [stderr]    |                                                                 ^                   ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 67 -     fn exec(&mut self, command: &str) -> Result<String, Box<dyn (::std::error::Error)>> {
[INFO] [stderr] 67 +     fn exec(&mut self, command: &str) -> Result<String, Box<dyn ::std::error::Error >> {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/ssh.rs:77:46
[INFO] [stderr]    |
[INFO] [stderr] 77 |     fn init(&mut self) -> Result<(), Box<dyn (::std::error::Error)>> {
[INFO] [stderr]    |                                              ^                   ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 77 -     fn init(&mut self) -> Result<(), Box<dyn (::std::error::Error)>> {
[INFO] [stderr] 77 +     fn init(&mut self) -> Result<(), Box<dyn ::std::error::Error >> {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/ssh.rs:91:58
[INFO] [stderr]    |
[INFO] [stderr] 91 |     fn try_connect(&mut self) -> Result<Session, Box<dyn (::std::error::Error)>> {
[INFO] [stderr]    |                                                          ^                   ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 91 -     fn try_connect(&mut self) -> Result<Session, Box<dyn (::std::error::Error)>> {
[INFO] [stderr] 91 +     fn try_connect(&mut self) -> Result<Session, Box<dyn ::std::error::Error >> {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/ssh.rs:130:54
[INFO] [stderr]     |
[INFO] [stderr] 130 |     fn channel(&mut self) -> Result<Channel, Box<dyn (::std::error::Error)>> {
[INFO] [stderr]     |                                                      ^                   ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 130 -     fn channel(&mut self) -> Result<Channel, Box<dyn (::std::error::Error)>> {
[INFO] [stderr] 130 +     fn channel(&mut self) -> Result<Channel, Box<dyn ::std::error::Error >> {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: method `empty_metrics` is never used
[INFO] [stderr]   --> src/metrics/mod.rs:33:8
[INFO] [stderr]    |
[INFO] [stderr] 25 | pub trait MetricPlugin: Send + 'static {
[INFO] [stderr]    |           ------------ method in this trait
[INFO] [stderr] ...
[INFO] [stderr] 33 |     fn empty_metrics(&self) -> Metrics;
[INFO] [stderr]    |        ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: multiple fields are never read
[INFO] [stderr]   --> src/metrics/disk.rs:58:5
[INFO] [stderr]    |
[INFO] [stderr] 57 | pub struct DiskStats {
[INFO] [stderr]    |            --------- fields in this struct
[INFO] [stderr] 58 |     reads_completed_successfully: u64,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 59 |     reads_merged: u64,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 60 |     sectors_read: u64,
[INFO] [stderr] 61 |     time_spend_reading: u64,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 62 |     writes_completed: u64,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 63 |     writes_merged: u64,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 64 |     sectors_written: u64,
[INFO] [stderr] 65 |     time_spent_writing: u64,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 66 |     ios_currently_in_progress: u64,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 67 |     time_spent_doing_ios: u64,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 68 |     weighted_time_spent_doing_ios: u64,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `DiskStats` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Everyone` is never constructed
[INFO] [stderr]   --> src/ws/server.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 30 | pub enum Receiver {
[INFO] [stderr]    |          -------- variant in this enum
[INFO] [stderr] ...
[INFO] [stderr] 33 |     Everyone,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Receiver` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: `hearth` (bin "hearth" test) generated 8 warnings (run `cargo fix --bin "hearth" -p hearth --tests` to apply 5 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.29s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/hearth-4311e8a37e715bc2)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test metrics::disk::test::test_process_data ... ok
[INFO] [stdout] test metrics::la::test::test_process_data ... ok
[INFO] [stdout] test metrics::space::test::test_process_data ... ok
[INFO] [stdout] test metrics::ram::test::test_process_data ... ok
[INFO] [stdout] test metrics::cpu::test::test_process_data ... ok
[INFO] [stdout] test metrics::network::test::test_process_data ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e5066f6c3a86805262c773c238acec345a7a86fd9219c3073553b5c3876f9073", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5066f6c3a86805262c773c238acec345a7a86fd9219c3073553b5c3876f9073", kill_on_drop: false }`
[INFO] [stdout] e5066f6c3a86805262c773c238acec345a7a86fd9219c3073553b5c3876f9073
