[INFO] cloning repository https://github.com/hastur-dev/data-pipeline-attempt
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hastur-dev/data-pipeline-attempt" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhastur-dev%2Fdata-pipeline-attempt", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhastur-dev%2Fdata-pipeline-attempt'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fea4113fa89c4ec54baa218c0e02622d7c3cd217
[INFO] checking hastur-dev/data-pipeline-attempt against master#733108b6d4acaa93fe26ae281ea305aacd6aac4e for pr-148967
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhastur-dev%2Fdata-pipeline-attempt" "/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/hastur-dev/data-pipeline-attempt
[INFO] finished tweaking git repo https://github.com/hastur-dev/data-pipeline-attempt
[INFO] tweaked toml for git repo https://github.com/hastur-dev/data-pipeline-attempt written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/hastur-dev/data-pipeline-attempt on toolchain 733108b6d4acaa93fe26ae281ea305aacd6aac4e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733108b6d4acaa93fe26ae281ea305aacd6aac4e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/hastur-dev/data-pipeline-attempt 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" "+733108b6d4acaa93fe26ae281ea305aacd6aac4e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
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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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+733108b6d4acaa93fe26ae281ea305aacd6aac4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 98f72ceddb0f9f8c75b684f088bae5619c52e01206c493349ba6bb52e3b1dff4
[INFO] running `Command { std: "docker" "start" "-a" "98f72ceddb0f9f8c75b684f088bae5619c52e01206c493349ba6bb52e3b1dff4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "98f72ceddb0f9f8c75b684f088bae5619c52e01206c493349ba6bb52e3b1dff4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98f72ceddb0f9f8c75b684f088bae5619c52e01206c493349ba6bb52e3b1dff4", kill_on_drop: false }`
[INFO] [stdout] 98f72ceddb0f9f8c75b684f088bae5619c52e01206c493349ba6bb52e3b1dff4
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+733108b6d4acaa93fe26ae281ea305aacd6aac4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0c7cb8808586b9d5f919841fe4f99259c98b69c6f9a71823730bca2123f4afa1
[INFO] running `Command { std: "docker" "start" "-a" "0c7cb8808586b9d5f919841fe4f99259c98b69c6f9a71823730bca2123f4afa1", kill_on_drop: false }`
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[INFO] [stderr]     Checking unsafe-libyaml v0.2.11
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[INFO] [stderr]     Checking h2 v0.4.12
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[INFO] [stderr]    Compiling zstd-safe v7.2.4
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[INFO] [stderr]     Checking polars-mem-engine v0.50.0
[INFO] [stderr]     Checking data-pipeline v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Pid` and `Process`
[INFO] [stdout]   --> src/main.rs:26:23
[INFO] [stdout]    |
[INFO] [stdout] 26 | use sysinfo::{System, Process, Pid};
[INFO] [stdout]    |                       ^^^^^^^  ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arc` and `Mutex`
[INFO] [stdout]   --> src/main.rs:32:17
[INFO] [stdout]    |
[INFO] [stdout] 32 | use std::sync::{Arc, Mutex};
[INFO] [stdout]    |                 ^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]   --> src/main.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 | use std::thread;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Pid` and `Process`
[INFO] [stdout]   --> src/main.rs:26:23
[INFO] [stdout]    |
[INFO] [stdout] 26 | use sysinfo::{System, Process, Pid};
[INFO] [stdout]    |                       ^^^^^^^  ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arc` and `Mutex`
[INFO] [stdout]   --> src/main.rs:32:17
[INFO] [stdout]    |
[INFO] [stdout] 32 | use std::sync::{Arc, Mutex};
[INFO] [stdout]    |                 ^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]   --> src/main.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 | use std::thread;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]     --> src/main.rs:1087:18
[INFO] [stdout]      |
[INFO] [stdout] 1087 |             for (i, row) in temp_rows.iter().enumerate() {
[INFO] [stdout]      |                  ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]     --> src/main.rs:1087:18
[INFO] [stdout]      |
[INFO] [stdout] 1087 |             for (i, row) in temp_rows.iter().enumerate() {
[INFO] [stdout]      |                  ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `path` is never read
[INFO] [stdout]   --> src/main.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 37 | struct FileInMemory {
[INFO] [stdout]    |        ------------ field in this struct
[INFO] [stdout] 38 |     path: PathBuf,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FileInMemory` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `timestamp`, `disk_read_bytes`, and `disk_write_bytes` are never read
[INFO] [stdout]    --> src/main.rs:269:5
[INFO] [stdout]     |
[INFO] [stdout] 268 | struct PerformanceMetrics {
[INFO] [stdout]     |        ------------------ fields in this struct
[INFO] [stdout] 269 |     timestamp: Instant,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 274 |     disk_read_bytes: u64,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 275 |     disk_write_bytes: u64,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `PerformanceMetrics` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `last_disk_stats` is never read
[INFO] [stdout]    --> src/main.rs:286:5
[INFO] [stdout]     |
[INFO] [stdout] 280 | struct PerformanceMonitor {
[INFO] [stdout]     |        ------------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 286 |     last_disk_stats: Option<(u64, u64)>, // (read, write) bytes
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `extract_image_row` is never used
[INFO] [stdout]     --> src/main.rs:1272:4
[INFO] [stdout]      |
[INFO] [stdout] 1272 | fn extract_image_row(p: &Path) -> Result<ImageRow> {
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calculate_file_hash` is never used
[INFO] [stdout]     --> src/main.rs:1438:4
[INFO] [stdout]      |
[INFO] [stdout] 1438 | fn calculate_file_hash(path: &Path) -> Result<String> {
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `common_patterns` is never read
[INFO] [stdout]     --> src/main.rs:1697:5
[INFO] [stdout]      |
[INFO] [stdout] 1692 | struct SyntheticProfile {
[INFO] [stdout]      |        ---------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 1697 |     common_patterns: Vec<String>,
[INFO] [stdout]      |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `path` is never read
[INFO] [stdout]   --> src/main.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 37 | struct FileInMemory {
[INFO] [stdout]    |        ------------ field in this struct
[INFO] [stdout] 38 |     path: PathBuf,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FileInMemory` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `timestamp`, `disk_read_bytes`, and `disk_write_bytes` are never read
[INFO] [stdout]    --> src/main.rs:269:5
[INFO] [stdout]     |
[INFO] [stdout] 268 | struct PerformanceMetrics {
[INFO] [stdout]     |        ------------------ fields in this struct
[INFO] [stdout] 269 |     timestamp: Instant,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 274 |     disk_read_bytes: u64,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 275 |     disk_write_bytes: u64,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `PerformanceMetrics` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `last_disk_stats` is never read
[INFO] [stdout]    --> src/main.rs:286:5
[INFO] [stdout]     |
[INFO] [stdout] 280 | struct PerformanceMonitor {
[INFO] [stdout]     |        ------------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 286 |     last_disk_stats: Option<(u64, u64)>, // (read, write) bytes
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `extract_image_row` is never used
[INFO] [stdout]     --> src/main.rs:1272:4
[INFO] [stdout]      |
[INFO] [stdout] 1272 | fn extract_image_row(p: &Path) -> Result<ImageRow> {
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calculate_file_hash` is never used
[INFO] [stdout]     --> src/main.rs:1438:4
[INFO] [stdout]      |
[INFO] [stdout] 1438 | fn calculate_file_hash(path: &Path) -> Result<String> {
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `common_patterns` is never read
[INFO] [stdout]     --> src/main.rs:1697:5
[INFO] [stdout]      |
[INFO] [stdout] 1692 | struct SyntheticProfile {
[INFO] [stdout]      |        ---------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 1697 |     common_patterns: Vec<String>,
[INFO] [stdout]      |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2m 22s
[INFO] running `Command { std: "docker" "inspect" "0c7cb8808586b9d5f919841fe4f99259c98b69c6f9a71823730bca2123f4afa1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c7cb8808586b9d5f919841fe4f99259c98b69c6f9a71823730bca2123f4afa1", kill_on_drop: false }`
[INFO] [stdout] 0c7cb8808586b9d5f919841fe4f99259c98b69c6f9a71823730bca2123f4afa1