[INFO] fetching crate ruvector-memopt 0.5.0...
[INFO] checking ruvector-memopt-0.5.0 against master#bbe853615821442ef11d6cd42a30a73432b38d89 for pr-154205
[INFO] extracting crate ruvector-memopt 0.5.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate ruvector-memopt 0.5.0
[INFO] finished tweaking crates.io crate ruvector-memopt 0.5.0
[INFO] tweaked toml for crates.io crate ruvector-memopt 0.5.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate ruvector-memopt 0.5.0 on toolchain bbe853615821442ef11d6cd42a30a73432b38d89
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bbe853615821442ef11d6cd42a30a73432b38d89" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ruvector-memopt 0.5.0 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" "+bbe853615821442ef11d6cd42a30a73432b38d89" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+bbe853615821442ef11d6cd42a30a73432b38d89" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "118dcdda01f505843b472eb00f973a9d335c05632b19d4884bae8b1b6b726220", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "118dcdda01f505843b472eb00f973a9d335c05632b19d4884bae8b1b6b726220", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "118dcdda01f505843b472eb00f973a9d335c05632b19d4884bae8b1b6b726220", kill_on_drop: false }`
[INFO] [stdout] 118dcdda01f505843b472eb00f973a9d335c05632b19d4884bae8b1b6b726220
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+bbe853615821442ef11d6cd42a30a73432b38d89" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "a34516ce6d490190439eb827b440149d04780a2b66288203cf23882f132ce19e", kill_on_drop: false }`
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[INFO] [stdout] warning: unused import: `ProcessesToUpdate`
[INFO] [stdout]  --> src/algorithms/mincut.rs:7:23
[INFO] [stdout]   |
[INFO] [stdout] 7 | use sysinfo::{System, ProcessesToUpdate};
[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: `AppCategory`, `AppInfo`, and `AppProcess`
[INFO] [stdout]   --> src/apps/browser.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 13 | use super::{AppCategory, AppInfo, AppProcess, OptimizationAction, OptimizationResult};
[INFO] [stdout]    |             ^^^^^^^^^^^  ^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Pid`
[INFO] [stdout]   --> src/apps/browser.rs:16:42
[INFO] [stdout]    |
[INFO] [stdout] 16 | use sysinfo::{System, ProcessesToUpdate, Pid};
[INFO] [stdout]    |                                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AppInfo` and `OptimizationResult`
[INFO] [stdout]   --> src/apps/electron.rs:17:26
[INFO] [stdout]    |
[INFO] [stdout] 17 | use super::{AppCategory, AppInfo, OptimizationAction, OptimizationResult};
[INFO] [stdout]    |                          ^^^^^^^                      ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Pid`
[INFO] [stdout]   --> src/apps/electron.rs:20:42
[INFO] [stdout]    |
[INFO] [stdout] 20 | use sysinfo::{System, ProcessesToUpdate, Pid};
[INFO] [stdout]    |                                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Pid`
[INFO] [stdout]   --> src/apps/leaks.rs:11:42
[INFO] [stdout]    |
[INFO] [stdout] 11 | use sysinfo::{System, ProcessesToUpdate, Pid};
[INFO] [stdout]    |                                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `leaks::LeakDetector`
[INFO] [stdout]   --> src/apps/suggestions.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     leaks::LeakDetector,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ProcessesToUpdate`
[INFO] [stdout]   --> src/apps/suggestions.rs:17:23
[INFO] [stdout]    |
[INFO] [stdout] 17 | use sysinfo::{System, ProcessesToUpdate};
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ProcessesToUpdate`
[INFO] [stdout]  --> src/algorithms/mincut.rs:7:23
[INFO] [stdout]   |
[INFO] [stdout] 7 | use sysinfo::{System, ProcessesToUpdate};
[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: `AppCategory`, `AppInfo`, and `AppProcess`
[INFO] [stdout]   --> src/apps/browser.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 13 | use super::{AppCategory, AppInfo, AppProcess, OptimizationAction, OptimizationResult};
[INFO] [stdout]    |             ^^^^^^^^^^^  ^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Pid`
[INFO] [stdout]   --> src/apps/browser.rs:16:42
[INFO] [stdout]    |
[INFO] [stdout] 16 | use sysinfo::{System, ProcessesToUpdate, Pid};
[INFO] [stdout]    |                                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AppInfo` and `OptimizationResult`
[INFO] [stdout]   --> src/apps/electron.rs:17:26
[INFO] [stdout]    |
[INFO] [stdout] 17 | use super::{AppCategory, AppInfo, OptimizationAction, OptimizationResult};
[INFO] [stdout]    |                          ^^^^^^^                      ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Pid`
[INFO] [stdout]   --> src/apps/electron.rs:20:42
[INFO] [stdout]    |
[INFO] [stdout] 20 | use sysinfo::{System, ProcessesToUpdate, Pid};
[INFO] [stdout]    |                                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Pid`
[INFO] [stdout]   --> src/apps/leaks.rs:11:42
[INFO] [stdout]    |
[INFO] [stdout] 11 | use sysinfo::{System, ProcessesToUpdate, Pid};
[INFO] [stdout]    |                                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `leaks::LeakDetector`
[INFO] [stdout]   --> src/apps/suggestions.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     leaks::LeakDetector,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ProcessesToUpdate`
[INFO] [stdout]   --> src/apps/suggestions.rs:17:23
[INFO] [stdout]    |
[INFO] [stdout] 17 | use sysinfo::{System, ProcessesToUpdate};
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `class`
[INFO] [stdout]    --> src/algorithms/spectral.rs:298:13
[INFO] [stdout]     |
[INFO] [stdout] 298 |         let class = analyzer.classify();
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_class`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/accel/cpu.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |         unsafe {
[INFO] [stdout]    |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/accel/cpu.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |         unsafe {
[INFO] [stdout]    |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `m` and `ef_construction` are never read
[INFO] [stdout]   --> src/neural/hnsw_patterns.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout]  6 | pub struct PatternIndex {
[INFO] [stdout]    |            ------------ fields in this struct
[INFO] [stdout] ...
[INFO] [stdout]  9 |     m: usize,
[INFO] [stdout]    |     ^
[INFO] [stdout] 10 |     ef_construction: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Candidate` is never constructed
[INFO] [stdout]   --> src/neural/hnsw_patterns.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | struct Candidate {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `expected_hashes` is never read
[INFO] [stdout]  --> src/security/integrity.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct IntegrityChecker {
[INFO] [stdout]   |            ---------------- field in this struct
[INFO] [stdout] 8 |     expected_hashes: HashMap<String, String>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Edge` is never constructed
[INFO] [stdout]   --> src/algorithms/mincut.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct Edge {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `pressure_threshold` is never read
[INFO] [stdout]    --> src/algorithms/sketch.rs:165:5
[INFO] [stdout]     |
[INFO] [stdout] 157 | pub struct PressureTracker {
[INFO] [stdout]     |            --------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 165 |     pressure_threshold: u32,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `m` and `ef_construction` are never read
[INFO] [stdout]   --> src/neural/hnsw_patterns.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout]  6 | pub struct PatternIndex {
[INFO] [stdout]    |            ------------ fields in this struct
[INFO] [stdout] ...
[INFO] [stdout]  9 |     m: usize,
[INFO] [stdout]    |     ^
[INFO] [stdout] 10 |     ef_construction: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Candidate` is never constructed
[INFO] [stdout]   --> src/neural/hnsw_patterns.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | struct Candidate {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `expected_hashes` is never read
[INFO] [stdout]  --> src/security/integrity.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct IntegrityChecker {
[INFO] [stdout]   |            ---------------- field in this struct
[INFO] [stdout] 8 |     expected_hashes: HashMap<String, String>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Edge` is never constructed
[INFO] [stdout]   --> src/algorithms/mincut.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct Edge {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `pressure_threshold` is never read
[INFO] [stdout]    --> src/algorithms/sketch.rs:165:5
[INFO] [stdout]     |
[INFO] [stdout] 157 | pub struct PressureTracker {
[INFO] [stdout]     |            --------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 165 |     pressure_threshold: u32,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ruvector-memopt` (bin "ruvector-memopt") due to 1 previous error
[INFO] [stdout] error[E0601]: `main` function not found in crate `ruvector_memopt`
[INFO] [stdout]    --> src/main.rs:492:2
[INFO] [stdout]     |
[INFO] [stdout] 492 | }
[INFO] [stdout]     |  ^ consider adding a `main` function to `src/main.rs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0601`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a34516ce6d490190439eb827b440149d04780a2b66288203cf23882f132ce19e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a34516ce6d490190439eb827b440149d04780a2b66288203cf23882f132ce19e", kill_on_drop: false }`
[INFO] [stdout] a34516ce6d490190439eb827b440149d04780a2b66288203cf23882f132ce19e