[INFO] cloning repository https://github.com/goyman/prometheus-zfs-exporter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/goyman/prometheus-zfs-exporter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgoyman%2Fprometheus-zfs-exporter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgoyman%2Fprometheus-zfs-exporter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 36c78c33eb4d626cb2ae0bbfdbf7b908549db53a
[INFO] checking goyman/prometheus-zfs-exporter against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgoyman%2Fprometheus-zfs-exporter" "/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/goyman/prometheus-zfs-exporter
[INFO] finished tweaking git repo https://github.com/goyman/prometheus-zfs-exporter
[INFO] tweaked toml for git repo https://github.com/goyman/prometheus-zfs-exporter written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/goyman/prometheus-zfs-exporter on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/goyman/prometheus-zfs-exporter 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded async-global-executor v2.0.4
[INFO] [stderr]   Downloaded tiny_http v0.10.0
[INFO] [stderr]   Downloaded prometheus_exporter v0.8.4
[INFO] [stderr]   Downloaded libc v0.2.123
[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" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 19507b7431c664f80fc7b831d4cf85fe0a74f67f0fa915687b54dff9c3dd9172
[INFO] running `Command { std: "docker" "start" "-a" "19507b7431c664f80fc7b831d4cf85fe0a74f67f0fa915687b54dff9c3dd9172", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "19507b7431c664f80fc7b831d4cf85fe0a74f67f0fa915687b54dff9c3dd9172", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19507b7431c664f80fc7b831d4cf85fe0a74f67f0fa915687b54dff9c3dd9172", kill_on_drop: false }`
[INFO] [stdout] 19507b7431c664f80fc7b831d4cf85fe0a74f67f0fa915687b54dff9c3dd9172
[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" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 43e9b02070bc3181f77b210ce850c083b7aa31c7295d5983e9d476c99bd21ae9
[INFO] running `Command { std: "docker" "start" "-a" "43e9b02070bc3181f77b210ce850c083b7aa31c7295d5983e9d476c99bd21ae9", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling libc v0.2.123
[INFO] [stderr]    Compiling log v0.4.16
[INFO] [stderr]     Checking pin-project-lite v0.2.8
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.8
[INFO] [stderr]     Checking concurrent-queue v1.2.2
[INFO] [stderr]     Checking futures-io v0.3.21
[INFO] [stderr]     Checking event-listener v2.5.2
[INFO] [stderr]     Checking once_cell v1.10.0
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]     Checking async-task v4.2.0
[INFO] [stderr]    Compiling prometheus v0.13.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.8
[INFO] [stderr]     Checking num_threads v0.1.5
[INFO] [stderr]     Checking itoa v1.0.1
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking futures-lite v1.12.0
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling anyhow v1.0.56
[INFO] [stderr]     Checking async-mutex v1.4.0
[INFO] [stderr]     Checking ascii v1.0.0
[INFO] [stderr]     Checking async-channel v1.6.1
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking chunked_transfer v1.4.0
[INFO] [stderr]     Checking async-lock v2.5.0
[INFO] [stderr]     Checking blocking v1.2.0
[INFO] [stderr]     Checking async-executor v1.4.1
[INFO] [stderr]     Checking parking_lot_core v0.8.5
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking time v0.3.9
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking regex v1.5.5
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling ctor v0.1.22
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling async-attributes v1.1.2
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking polling v2.2.0
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]     Checking tiny_http v0.10.0
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]     Checking async-io v1.6.0
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking prometheus_exporter v0.8.4
[INFO] [stderr]     Checking async-global-executor v2.0.4
[INFO] [stderr]     Checking async-std v1.11.0
[INFO] [stderr]     Checking toml v0.5.9
[INFO] [stderr]     Checking prometheus-zfs-exporter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/main.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | /     loop {
[INFO] [stdout] 30 | |         scraper.update()?;
[INFO] [stdout] 31 | |         let _guard = exporter.wait_duration(duration);
[INFO] [stdout] 32 | |     }
[INFO] [stdout]    | |_____- any code following this expression is unreachable
[INFO] [stdout] 33 |
[INFO] [stdout] 34 |       Ok(())
[INFO] [stdout]    |       ^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/main.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | /     loop {
[INFO] [stdout] 30 | |         scraper.update()?;
[INFO] [stdout] 31 | |         let _guard = exporter.wait_duration(duration);
[INFO] [stdout] 32 | |     }
[INFO] [stdout]    | |_____- any code following this expression is unreachable
[INFO] [stdout] 33 |
[INFO] [stdout] 34 |       Ok(())
[INFO] [stdout]    |       ^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]   --> src/scraper.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct Snapshot {
[INFO] [stdout]    |        -------- field in this struct
[INFO] [stdout] 16 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]   --> src/scraper.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | struct Dataset {
[INFO] [stdout]    |        ------- field in this struct
[INFO] [stdout] 21 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]   --> src/scraper.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | struct Pool {
[INFO] [stdout]    |        ---- field in this struct
[INFO] [stdout] 26 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type
[INFO] [stdout]    --> src/scraper.rs:230:65
[INFO] [stdout]     |
[INFO] [stdout] 230 |                           .ok_or(anyhow!("Cannot snapshot name"))?
[INFO] [stdout]     |  _________________________________________________________________^
[INFO] [stdout] 231 | |                         .clone();
[INFO] [stdout]     | |________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]   --> src/scraper.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct Snapshot {
[INFO] [stdout]    |        -------- field in this struct
[INFO] [stdout] 16 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]   --> src/scraper.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | struct Dataset {
[INFO] [stdout]    |        ------- field in this struct
[INFO] [stdout] 21 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]   --> src/scraper.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | struct Pool {
[INFO] [stdout]    |        ---- field in this struct
[INFO] [stdout] 26 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type
[INFO] [stdout]    --> src/scraper.rs:230:65
[INFO] [stdout]     |
[INFO] [stdout] 230 |                           .ok_or(anyhow!("Cannot snapshot name"))?
[INFO] [stdout]     |  _________________________________________________________________^
[INFO] [stdout] 231 | |                         .clone();
[INFO] [stdout]     | |________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.15s
[INFO] running `Command { std: "docker" "inspect" "43e9b02070bc3181f77b210ce850c083b7aa31c7295d5983e9d476c99bd21ae9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43e9b02070bc3181f77b210ce850c083b7aa31c7295d5983e9d476c99bd21ae9", kill_on_drop: false }`
[INFO] [stdout] 43e9b02070bc3181f77b210ce850c083b7aa31c7295d5983e9d476c99bd21ae9
