[INFO] updating cached repository luchoman08/best_pair_assignment
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/luchoman08/best_pair_assignment
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/luchoman08/best_pair_assignment" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/luchoman08/best_pair_assignment"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/luchoman08/best_pair_assignment'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/luchoman08/best_pair_assignment" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/luchoman08/best_pair_assignment"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/luchoman08/best_pair_assignment'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ed4d25b0f6a0707af53fca865dba779ab785c684
[INFO] sha for GitHub repo luchoman08/best_pair_assignment: ed4d25b0f6a0707af53fca865dba779ab785c684
[INFO] validating manifest of luchoman08/best_pair_assignment on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of luchoman08/best_pair_assignment on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing luchoman08/best_pair_assignment
[INFO] finished frobbing luchoman08/best_pair_assignment
[INFO] frobbed toml for luchoman08/best_pair_assignment written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/luchoman08/best_pair_assignment/Cargo.toml
[INFO] started frobbing luchoman08/best_pair_assignment
[INFO] finished frobbing luchoman08/best_pair_assignment
[INFO] frobbed toml for luchoman08/best_pair_assignment written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/luchoman08/best_pair_assignment/Cargo.toml
[INFO] crate luchoman08/best_pair_assignment already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking luchoman08/best_pair_assignment against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-4/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/luchoman08/best_pair_assignment:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 40af7192d507568738c834c195ce67e684cd0a81897e545f3c3c5a0de1db255c
[INFO] running `"docker" "start" "-a" "40af7192d507568738c834c195ce67e684cd0a81897e545f3c3c5a0de1db255c"`
[INFO] [stderr]     Checking lp-modeler v0.3.1
[INFO] [stderr]     Checking pair_assignment v0.1.0 (/opt/crater/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: 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 used: `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: 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 used: `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]     Finished dev [unoptimized + debuginfo] target(s) in 1.00s
[INFO] running `"docker" "inspect" "40af7192d507568738c834c195ce67e684cd0a81897e545f3c3c5a0de1db255c"`
[INFO] running `"docker" "rm" "-f" "40af7192d507568738c834c195ce67e684cd0a81897e545f3c3c5a0de1db255c"`
[INFO] [stdout] 40af7192d507568738c834c195ce67e684cd0a81897e545f3c3c5a0de1db255c