[INFO] cloning repository https://github.com/dopeoffx/apriori_algorithm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dopeoffx/apriori_algorithm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdopeoffx%2Fapriori_algorithm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdopeoffx%2Fapriori_algorithm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f458aca4890b5c988544930420d639162b55778c
[INFO] checking dopeoffx/apriori_algorithm against try#93086cfebfccb79083c59d0d3b2052944bba643c for pr-146440-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdopeoffx%2Fapriori_algorithm" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/dopeoffx/apriori_algorithm
[INFO] finished tweaking git repo https://github.com/dopeoffx/apriori_algorithm
[INFO] tweaked toml for git repo https://github.com/dopeoffx/apriori_algorithm written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/dopeoffx/apriori_algorithm on toolchain 93086cfebfccb79083c59d0d3b2052944bba643c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/dopeoffx/apriori_algorithm 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" "+93086cfebfccb79083c59d0d3b2052944bba643c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8eb7c1037e4a02dacc0fbe76ae9e22858d61d5272a237760ca7bcfdab9dd93b0
[INFO] running `Command { std: "docker" "start" "-a" "8eb7c1037e4a02dacc0fbe76ae9e22858d61d5272a237760ca7bcfdab9dd93b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8eb7c1037e4a02dacc0fbe76ae9e22858d61d5272a237760ca7bcfdab9dd93b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8eb7c1037e4a02dacc0fbe76ae9e22858d61d5272a237760ca7bcfdab9dd93b0", kill_on_drop: false }`
[INFO] [stdout] 8eb7c1037e4a02dacc0fbe76ae9e22858d61d5272a237760ca7bcfdab9dd93b0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "+93086cfebfccb79083c59d0d3b2052944bba643c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] be8f1655b041f0c6d134484bcbb9914cb26defb0892b31b03ffd262c4a0c9c8c
[INFO] running `Command { std: "docker" "start" "-a" "be8f1655b041f0c6d134484bcbb9914cb26defb0892b31b03ffd262c4a0c9c8c", kill_on_drop: false }`
[INFO] [stderr]     Checking apriori_algorithm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/dataset.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashMap;
[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 import: `std::hash::Hash`
[INFO] [stdout]  --> src/dataset.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::hash::Hash;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::vec`
[INFO] [stdout]  --> src/dataset.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::vec;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `max` and `min`
[INFO] [stdout]  --> src/dataset.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::cmp::{min, max};
[INFO] [stdout]   |                ^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::vec`
[INFO] [stdout]  --> src/apriori_hash_tree.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::vec;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `max` and `min`
[INFO] [stdout]  --> src/apriori_hash_tree.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::cmp::{min, max};
[INFO] [stdout]   |                ^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Apriori_Hash_Tree` should have an upper camel case name
[INFO] [stdout]   --> src/apriori_hash_tree.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | struct Apriori_Hash_Tree<T, K>
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `AprioriHashTree`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/dataset.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashMap;
[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 import: `std::hash::Hash`
[INFO] [stdout]  --> src/dataset.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::hash::Hash;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::vec`
[INFO] [stdout]  --> src/dataset.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::vec;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `max` and `min`
[INFO] [stdout]  --> src/dataset.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::cmp::{min, max};
[INFO] [stdout]   |                ^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::vec`
[INFO] [stdout]  --> src/apriori_hash_tree.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::vec;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `max` and `min`
[INFO] [stdout]  --> src/apriori_hash_tree.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::cmp::{min, max};
[INFO] [stdout]   |                ^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Apriori_Hash_Tree` should have an upper camel case name
[INFO] [stdout]   --> src/apriori_hash_tree.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | struct Apriori_Hash_Tree<T, K>
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `AprioriHashTree`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/dataset.rs:23:21
[INFO] [stdout]    |
[INFO] [stdout] 23 |                 let mut v: Vec<i32> = line
[INFO] [stdout]    |                     ----^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/dataset.rs:23:21
[INFO] [stdout]    |
[INFO] [stdout] 23 |                 let mut v: Vec<i32> = line
[INFO] [stdout]    |                     ----^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `data`, `min`, and `max` are never read
[INFO] [stdout]   --> src/dataset.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout]  7 | struct Row {
[INFO] [stdout]    |        --- fields in this struct
[INFO] [stdout]  8 |     data: Box<[i32]>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]  9 |     len: usize,
[INFO] [stdout] 10 |     min: i32,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 11 |     max: i32,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Row` has a derived impl for the trait `Debug`, 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 `data`, `min`, and `max` are never read
[INFO] [stdout]   --> src/dataset.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout]  7 | struct Row {
[INFO] [stdout]    |        --- fields in this struct
[INFO] [stdout]  8 |     data: Box<[i32]>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]  9 |     len: usize,
[INFO] [stdout] 10 |     min: i32,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 11 |     max: i32,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Row` has a derived impl for the trait `Debug`, 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: field `rows` is never read
[INFO] [stdout]   --> src/dataset.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct Dataset {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] 16 |     rows: Vec<Row>
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Dataset` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `rows` is never read
[INFO] [stdout]   --> src/dataset.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct Dataset {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] 16 |     rows: Vec<Row>
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Dataset` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `NodeId` is never used
[INFO] [stdout]  --> src/apriori_hash_tree.rs:8:6
[INFO] [stdout]   |
[INFO] [stdout] 8 | type NodeId = usize;
[INFO] [stdout]   |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Node` is never constructed
[INFO] [stdout]   --> src/apriori_hash_tree.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct Node<T, K> 
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `NodeId` is never used
[INFO] [stdout]  --> src/apriori_hash_tree.rs:8:6
[INFO] [stdout]   |
[INFO] [stdout] 8 | type NodeId = usize;
[INFO] [stdout]   |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Apriori_Hash_Tree` is never constructed
[INFO] [stdout]   --> src/apriori_hash_tree.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | struct Apriori_Hash_Tree<T, K>
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Node` is never constructed
[INFO] [stdout]   --> src/apriori_hash_tree.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct Node<T, K> 
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Apriori_Hash_Tree` is never constructed
[INFO] [stdout]   --> src/apriori_hash_tree.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | struct Apriori_Hash_Tree<T, K>
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "be8f1655b041f0c6d134484bcbb9914cb26defb0892b31b03ffd262c4a0c9c8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be8f1655b041f0c6d134484bcbb9914cb26defb0892b31b03ffd262c4a0c9c8c", kill_on_drop: false }`
[INFO] [stdout] be8f1655b041f0c6d134484bcbb9914cb26defb0892b31b03ffd262c4a0c9c8c
