[INFO] cloning repository https://github.com/luchoman08/best_pair_assignment
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/luchoman08/best_pair_assignment" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluchoman08%2Fbest_pair_assignment"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluchoman08%2Fbest_pair_assignment'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ed4d25b0f6a0707af53fca865dba779ab785c684
[INFO] checking luchoman08/best_pair_assignment against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluchoman08%2Fbest_pair_assignment" "/workspace/builds/worker-13/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/luchoman08/best_pair_assignment on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/luchoman08/best_pair_assignment
[INFO] finished tweaking git repo https://github.com/luchoman08/best_pair_assignment
[INFO] tweaked toml for git repo https://github.com/luchoman08/best_pair_assignment written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/luchoman08/best_pair_assignment already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lp-modeler v0.3.1
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] a0e0078109468804bdb636dc74f7429f7aa7e3444e378261f40a40889536b83f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "a0e0078109468804bdb636dc74f7429f7aa7e3444e378261f40a40889536b83f"`
[INFO] [stderr]     Checking lp-modeler v0.3.1
[INFO] [stderr]     Checking pair_assignment v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused imports: `LpObjective`, `LpProblem`
[INFO] [stderr]  --> src/pair_assignment.rs:2:27
[INFO] [stderr]   |
[INFO] [stderr] 2 | use lp_modeler::problem::{LpObjective, LpProblem};
[INFO] [stderr]   |                           ^^^^^^^^^^^  ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `LpOperations`
[INFO] [stderr]  --> src/pair_assignment.rs:3:30
[INFO] [stderr]   |
[INFO] [stderr] 3 | use lp_modeler::operations::{LpOperations};
[INFO] [stderr]   |                              ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `lp_modeler::variables::LpInteger`
[INFO] [stderr]  --> src/pair_assignment.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use lp_modeler::variables::LpInteger;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `CbcSolver`, `SolverTrait`
[INFO] [stderr]  --> src/pair_assignment.rs:5:27
[INFO] [stderr]   |
[INFO] [stderr] 5 | use lp_modeler::solvers::{SolverTrait, CbcSolver};
[INFO] [stderr]   |                           ^^^^^^^^^^^  ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `max`, `min`
[INFO] [stderr]  --> src/pair_assignment.rs:8:16
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::cmp::{max, min};
[INFO] [stderr]   |                ^^^  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `DEFAULT_SKILL_ID`
[INFO] [stderr]   --> src/pair_assignment.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub const DEFAULT_SKILL_ID: i8 = -1;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `MINIMUM_SKILL_VALUE`
[INFO] [stderr]   --> src/pair_assignment.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub const MINIMUM_SKILL_VALUE: u8 = 1;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `id`
[INFO] [stderr]   --> src/pair_assignment.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     id: u32,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_id`
[INFO] [stderr]   --> src/pair_assignment.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 |     pub fn get_id(&self) -> u32 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_little_skillfull_agent`
[INFO] [stderr]   --> src/pair_assignment.rs:72:5
[INFO] [stderr]    |
[INFO] [stderr] 72 |     pub fn get_little_skillfull_agent(sample_skills: &Skills) -> Agent {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `LpObjective`, `LpProblem`
[INFO] [stderr]  --> src/pair_assignment.rs:2:27
[INFO] [stderr]   |
[INFO] [stderr] 2 | use lp_modeler::problem::{LpObjective, LpProblem};
[INFO] [stderr]   |                           ^^^^^^^^^^^  ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `LpOperations`
[INFO] [stderr]  --> src/pair_assignment.rs:3:30
[INFO] [stderr]   |
[INFO] [stderr] 3 | use lp_modeler::operations::{LpOperations};
[INFO] [stderr]   |                              ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `lp_modeler::variables::LpInteger`
[INFO] [stderr]  --> src/pair_assignment.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use lp_modeler::variables::LpInteger;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `CbcSolver`, `SolverTrait`
[INFO] [stderr]  --> src/pair_assignment.rs:5:27
[INFO] [stderr]   |
[INFO] [stderr] 5 | use lp_modeler::solvers::{SolverTrait, CbcSolver};
[INFO] [stderr]   |                           ^^^^^^^^^^^  ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `max`, `min`
[INFO] [stderr]  --> src/pair_assignment.rs:8:16
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::cmp::{max, min};
[INFO] [stderr]   |                ^^^  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `DEFAULT_SKILL_ID`
[INFO] [stderr]   --> src/pair_assignment.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub const DEFAULT_SKILL_ID: i8 = -1;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `MINIMUM_SKILL_VALUE`
[INFO] [stderr]   --> src/pair_assignment.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub const MINIMUM_SKILL_VALUE: u8 = 1;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `id`
[INFO] [stderr]   --> src/pair_assignment.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     id: u32,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_id`
[INFO] [stderr]   --> src/pair_assignment.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 |     pub fn get_id(&self) -> u32 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_little_skillfull_agent`
[INFO] [stderr]   --> src/pair_assignment.rs:72:5
[INFO] [stderr]    |
[INFO] [stderr] 72 |     pub fn get_little_skillfull_agent(sample_skills: &Skills) -> Agent {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 10 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 10 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.09s
[INFO] running `"docker" "inspect" "a0e0078109468804bdb636dc74f7429f7aa7e3444e378261f40a40889536b83f"`
[INFO] running `"docker" "rm" "-f" "a0e0078109468804bdb636dc74f7429f7aa7e3444e378261f40a40889536b83f"`
[INFO] [stdout] a0e0078109468804bdb636dc74f7429f7aa7e3444e378261f40a40889536b83f