[INFO] cloning repository https://github.com/ptraunf/data_structs_rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ptraunf/data_structs_rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fptraunf%2Fdata_structs_rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fptraunf%2Fdata_structs_rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d6de07383738cf5bcc3deb4ca2d5cb821623dba9
[INFO] checking ptraunf/data_structs_rs against try#6713fa75964eb229409a9c6f6f5c418423e313ff for pr-133502-22
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fptraunf%2Fdata_structs_rs" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ptraunf/data_structs_rs
[INFO] finished tweaking git repo https://github.com/ptraunf/data_structs_rs
[INFO] tweaked toml for git repo https://github.com/ptraunf/data_structs_rs written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ptraunf/data_structs_rs on toolchain 6713fa75964eb229409a9c6f6f5c418423e313ff
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6713fa75964eb229409a9c6f6f5c418423e313ff" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ptraunf/data_structs_rs 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" "+6713fa75964eb229409a9c6f6f5c418423e313ff" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded seahash v3.0.7
[INFO] [stderr]   Downloaded xoroshiro128 v0.3.0
[INFO] [stderr]   Downloaded fasthash v0.4.0
[INFO] [stderr]   Downloaded fasthash-sys v0.3.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+6713fa75964eb229409a9c6f6f5c418423e313ff" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 774619e71b2297cd340c8dd17ae58d6b6fc0da276d69cb8bee97f8f960318d46
[INFO] running `Command { std: "docker" "start" "-a" "774619e71b2297cd340c8dd17ae58d6b6fc0da276d69cb8bee97f8f960318d46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "774619e71b2297cd340c8dd17ae58d6b6fc0da276d69cb8bee97f8f960318d46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "774619e71b2297cd340c8dd17ae58d6b6fc0da276d69cb8bee97f8f960318d46", kill_on_drop: false }`
[INFO] [stdout] 774619e71b2297cd340c8dd17ae58d6b6fc0da276d69cb8bee97f8f960318d46
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+6713fa75964eb229409a9c6f6f5c418423e313ff" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 65a07933df2253fa01a6b3f8cb07a405631911ff532bc17924ffb63c9d6bf28f
[INFO] running `Command { std: "docker" "start" "-a" "65a07933df2253fa01a6b3f8cb07a405631911ff532bc17924ffb63c9d6bf28f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking seahash v3.0.7
[INFO] [stderr]    Compiling fasthash-sys v0.3.2
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking xoroshiro128 v0.3.0
[INFO] [stderr]     Checking fasthash v0.4.0
[INFO] [stderr]     Checking data_structs_rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `thread_rng`
[INFO] [stdout]  --> src/queue/mod.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rand::{thread_rng, Rng};
[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::time::Instant`
[INFO] [stdout]  --> src/queue/mod.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::time::Instant;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `collections::HashSet`
[INFO] [stdout]  --> src/graph/mod.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{collections::HashSet, fmt::Display};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Formatter`
[INFO] [stdout]  --> src/graph/mod.rs:3:23
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::fmt::{Debug, Formatter};
[INFO] [stdout]   |                       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Edge`
[INFO] [stdout]  --> src/graph/search.rs:3:20
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::graph::{Edge, Graph, Node};
[INFO] [stdout]   |                    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `thread_rng`
[INFO] [stdout]  --> src/queue/mod.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rand::{thread_rng, Rng};
[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: `collections::HashSet`
[INFO] [stdout]  --> src/graph/mod.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{collections::HashSet, fmt::Display};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Formatter`
[INFO] [stdout]  --> src/graph/mod.rs:3:23
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::fmt::{Debug, Formatter};
[INFO] [stdout]   |                       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `g`
[INFO] [stdout]   --> src/graph/search.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 |     g: &'a Graph<'a, T, ()>,
[INFO] [stdout]    |     ^ help: if this is intentional, prefix it with an underscore: `_g`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `search`
[INFO] [stdout]   --> src/graph/search.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 |     search: T,
[INFO] [stdout]    |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_search`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/graph/path.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let mut path: Vec<&Edge<T, W>> = Vec::new();
[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: unused variable: `g`
[INFO] [stdout]  --> src/graph/path.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     g: &'a Graph<'a, T, W>,
[INFO] [stdout]   |     ^ help: if this is intentional, prefix it with an underscore: `_g`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `from`
[INFO] [stdout]  --> src/graph/path.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     from: &'a Node<'a, T>,
[INFO] [stdout]   |     ^^^^ help: if this is intentional, prefix it with an underscore: `_from`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `to`
[INFO] [stdout]  --> src/graph/path.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     to: &'a Node<'a, T>,
[INFO] [stdout]   |     ^^ help: if this is intentional, prefix it with an underscore: `_to`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `path`
[INFO] [stdout]   --> src/graph/path.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let mut path: Vec<&Edge<T, W>> = Vec::new();
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_path`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `g`
[INFO] [stdout]   --> src/graph/path.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     g: &'a Graph<'a, T, W>,
[INFO] [stdout]    |     ^ help: if this is intentional, prefix it with an underscore: `_g`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `from`
[INFO] [stdout]   --> src/graph/path.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     from: &'a Node<'a, T>,
[INFO] [stdout]    |     ^^^^ help: if this is intentional, prefix it with an underscore: `_from`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `to`
[INFO] [stdout]   --> src/graph/path.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     to: &'a Node<'a, T>,
[INFO] [stdout]    |     ^^ help: if this is intentional, prefix it with an underscore: `_to`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `g`
[INFO] [stdout]  --> src/graph/span_tree.rs:4:28
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn prims_mst<'a, T, W>(g: &'a Graph<'a, T, W>) -> Vec<&'a Edge<'a, T, W>>
[INFO] [stdout]   |                            ^ help: if this is intentional, prefix it with an underscore: `_g`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `g`
[INFO] [stdout]   --> src/graph/span_tree.rs:11:45
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn kruskals_mst<'a, T: Eq + Display, W>(g: &'a Graph<'a, T, W>) -> Vec<&'a Edge<'a, T, W>> {
[INFO] [stdout]    |                                             ^ help: if this is intentional, prefix it with an underscore: `_g`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `generate_test_vec` is never used
[INFO] [stdout]   --> src/queue/mod.rs:96:8
[INFO] [stdout]    |
[INFO] [stdout] 96 |     fn generate_test_vec<T>(min: T, max: T, size: usize) -> Vec<T>
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `g`
[INFO] [stdout]   --> src/graph/search.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 |     g: &'a Graph<'a, T, ()>,
[INFO] [stdout]    |     ^ help: if this is intentional, prefix it with an underscore: `_g`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `search`
[INFO] [stdout]   --> src/graph/search.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 |     search: T,
[INFO] [stdout]    |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_search`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/graph/path.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let mut path: Vec<&Edge<T, W>> = Vec::new();
[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: unused variable: `g`
[INFO] [stdout]  --> src/graph/path.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     g: &'a Graph<'a, T, W>,
[INFO] [stdout]   |     ^ help: if this is intentional, prefix it with an underscore: `_g`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `from`
[INFO] [stdout]  --> src/graph/path.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     from: &'a Node<'a, T>,
[INFO] [stdout]   |     ^^^^ help: if this is intentional, prefix it with an underscore: `_from`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `to`
[INFO] [stdout]  --> src/graph/path.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     to: &'a Node<'a, T>,
[INFO] [stdout]   |     ^^ help: if this is intentional, prefix it with an underscore: `_to`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `path`
[INFO] [stdout]   --> src/graph/path.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let mut path: Vec<&Edge<T, W>> = Vec::new();
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_path`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `g`
[INFO] [stdout]   --> src/graph/path.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     g: &'a Graph<'a, T, W>,
[INFO] [stdout]    |     ^ help: if this is intentional, prefix it with an underscore: `_g`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `from`
[INFO] [stdout]   --> src/graph/path.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     from: &'a Node<'a, T>,
[INFO] [stdout]    |     ^^^^ help: if this is intentional, prefix it with an underscore: `_from`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `to`
[INFO] [stdout]   --> src/graph/path.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     to: &'a Node<'a, T>,
[INFO] [stdout]    |     ^^ help: if this is intentional, prefix it with an underscore: `_to`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `g`
[INFO] [stdout]  --> src/graph/span_tree.rs:4:28
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn prims_mst<'a, T, W>(g: &'a Graph<'a, T, W>) -> Vec<&'a Edge<'a, T, W>>
[INFO] [stdout]   |                            ^ help: if this is intentional, prefix it with an underscore: `_g`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `g`
[INFO] [stdout]   --> src/graph/span_tree.rs:11:45
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn kruskals_mst<'a, T: Eq + Display, W>(g: &'a Graph<'a, T, W>) -> Vec<&'a Edge<'a, T, W>> {
[INFO] [stdout]    |                                             ^ help: if this is intentional, prefix it with an underscore: `_g`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.43s
[INFO] running `Command { std: "docker" "inspect" "65a07933df2253fa01a6b3f8cb07a405631911ff532bc17924ffb63c9d6bf28f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65a07933df2253fa01a6b3f8cb07a405631911ff532bc17924ffb63c9d6bf28f", kill_on_drop: false }`
[INFO] [stdout] 65a07933df2253fa01a6b3f8cb07a405631911ff532bc17924ffb63c9d6bf28f
