[INFO] updating cached repository metaphorshear/tsp
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/metaphorshear/tsp
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/metaphorshear/tsp" "work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/metaphorshear/tsp"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/metaphorshear/tsp'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/metaphorshear/tsp" "work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/metaphorshear/tsp"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/metaphorshear/tsp'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6c53337d9248b3d7231dad7e229e29730eefb1aa
[INFO] sha for GitHub repo metaphorshear/tsp: 6c53337d9248b3d7231dad7e229e29730eefb1aa
[INFO] validating manifest of metaphorshear/tsp on toolchain master#0f88167f89fffe321590c5148f21b7d51d44388d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of metaphorshear/tsp on toolchain try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing metaphorshear/tsp
[INFO] finished frobbing metaphorshear/tsp
[INFO] frobbed toml for metaphorshear/tsp written to work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/metaphorshear/tsp/Cargo.toml
[INFO] started frobbing metaphorshear/tsp
[INFO] finished frobbing metaphorshear/tsp
[INFO] frobbed toml for metaphorshear/tsp written to work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/metaphorshear/tsp/Cargo.toml
[INFO] crate metaphorshear/tsp already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking metaphorshear/tsp against try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b for pr-58948
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58948/worker-2/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/metaphorshear/tsp:/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" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] fdd35683dde3db6c0f50205fd629daf10f756ca34311a68ff9b974f17bf4aea8
[INFO] running `"docker" "start" "-a" "fdd35683dde3db6c0f50205fd629daf10f756ca34311a68ff9b974f17bf4aea8"`
[INFO] [stderr]     Checking tsp v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/aco.rs:14:9
[INFO] [stderr]    |
[INFO] [stderr] 14 | /         /// grid_size : the number of nodes in the graph
[INFO] [stderr] 15 | |         /// initial strength : every edge in the pheromone matrix is initialized to this value
[INFO] [stderr] 16 | |         /// try num_cities/path_cost, where path_cost is the total cost of the first path
[INFO] [stderr]    | |_________________________________________________________________________________________^
[INFO] [stderr] 17 | 
[INFO] [stderr] 18 | /         ACO { pheromones: vec![ vec![initial_strength; grid_size]; grid_size ],
[INFO] [stderr] 19 | |               pweight: pweight, hweight : hweight, decay : decay }
[INFO] [stderr]    | |__________________________________________________________________- rustdoc does not generate documentation for expressions
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_doc_comments)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/tsp.rs:118:9
[INFO] [stderr]     |
[INFO] [stderr] 118 | /         ///Implementation of an Ant System, based on the code and descriptions in Clever Algorithms
[INFO] [stderr] 119 | |         ///pweight corresponds to alpha (the history coefficient), usually set to 1
[INFO] [stderr] 120 | |         ///hweight corresponds to beta (the heuristic coefficient), usually set between 2 and 5
[INFO] [stderr] 121 | |         ///decay is usually set to 0.5
[INFO] [stderr] 122 | |         ///number of ants should be number of cities
[INFO] [stderr]     | |____________________________________________________^
[INFO] [stderr] 123 | 
[INFO] [stderr] 124 |           let num_cities = self.ecm.ecm.len();
[INFO] [stderr]     |           ------------------------------------ rustdoc does not generate documentation for statements
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/tsp.rs:158:9
[INFO] [stderr]     |
[INFO] [stderr] 158 | /         ///This is a wrapper around ant_system, which sets sane values
[INFO] [stderr] 159 | |         ///You can still use the other one if you want to tweak everything
[INFO] [stderr]     | |__________________________________________________________________________^
[INFO] [stderr] 160 |           let pweight = 1f32;
[INFO] [stderr]     |           ------------------- rustdoc does not generate documentation for statements
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/aco.rs:14:9
[INFO] [stderr]    |
[INFO] [stderr] 14 | /         /// grid_size : the number of nodes in the graph
[INFO] [stderr] 15 | |         /// initial strength : every edge in the pheromone matrix is initialized to this value
[INFO] [stderr] 16 | |         /// try num_cities/path_cost, where path_cost is the total cost of the first path
[INFO] [stderr]    | |_________________________________________________________________________________________^
[INFO] [stderr] 17 | 
[INFO] [stderr] 18 | /         ACO { pheromones: vec![ vec![initial_strength; grid_size]; grid_size ],
[INFO] [stderr] 19 | |               pweight: pweight, hweight : hweight, decay : decay }
[INFO] [stderr]    | |__________________________________________________________________- rustdoc does not generate documentation for expressions
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_doc_comments)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/tsp.rs:118:9
[INFO] [stderr]     |
[INFO] [stderr] 118 | /         ///Implementation of an Ant System, based on the code and descriptions in Clever Algorithms
[INFO] [stderr] 119 | |         ///pweight corresponds to alpha (the history coefficient), usually set to 1
[INFO] [stderr] 120 | |         ///hweight corresponds to beta (the heuristic coefficient), usually set between 2 and 5
[INFO] [stderr] 121 | |         ///decay is usually set to 0.5
[INFO] [stderr] 122 | |         ///number of ants should be number of cities
[INFO] [stderr]     | |____________________________________________________^
[INFO] [stderr] 123 | 
[INFO] [stderr] 124 |           let num_cities = self.ecm.ecm.len();
[INFO] [stderr]     |           ------------------------------------ rustdoc does not generate documentation for statements
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/tsp.rs:158:9
[INFO] [stderr]     |
[INFO] [stderr] 158 | /         ///This is a wrapper around ant_system, which sets sane values
[INFO] [stderr] 159 | |         ///You can still use the other one if you want to tweak everything
[INFO] [stderr]     | |__________________________________________________________________________^
[INFO] [stderr] 160 |           let pweight = 1f32;
[INFO] [stderr]     |           ------------------- rustdoc does not generate documentation for statements
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]    --> src/tsp.rs:137:13
[INFO] [stderr]     |
[INFO] [stderr] 137 |         for n in 0..iterations {
[INFO] [stderr]     |             ^ help: consider prefixing with an underscore: `_n`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]    --> src/tsp.rs:137:13
[INFO] [stderr]     |
[INFO] [stderr] 137 |         for n in 0..iterations {
[INFO] [stderr]     |             ^ help: consider prefixing with an underscore: `_n`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]   --> src/main.rs:52:9
[INFO] [stderr]    |
[INFO] [stderr] 52 |     let n = num_cities;
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_n`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `t`
[INFO] [stderr]    --> src/main.rs:202:13
[INFO] [stderr]     |
[INFO] [stderr] 202 |         for t in 0..trials {
[INFO] [stderr]     |             ^ help: consider prefixing with an underscore: `_t`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `quick_test`
[INFO] [stderr]   --> src/main.rs:50:1
[INFO] [stderr]    |
[INFO] [stderr] 50 | fn quick_test(num_cities: usize) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `part_a`
[INFO] [stderr]   --> src/main.rs:77:1
[INFO] [stderr]    |
[INFO] [stderr] 77 | fn part_a(){
[INFO] [stderr]    | ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `part_b_and_c`
[INFO] [stderr]   --> src/main.rs:89:1
[INFO] [stderr]    |
[INFO] [stderr] 89 | fn part_b_and_c(){
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `part_d`
[INFO] [stderr]    --> src/main.rs:187:1
[INFO] [stderr]     |
[INFO] [stderr] 187 | fn part_d(trials : u64, monte_pow : usize){
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]   --> src/main.rs:52:9
[INFO] [stderr]    |
[INFO] [stderr] 52 |     let n = num_cities;
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_n`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `t`
[INFO] [stderr]    --> src/main.rs:202:13
[INFO] [stderr]     |
[INFO] [stderr] 202 |         for t in 0..trials {
[INFO] [stderr]     |             ^ help: consider prefixing with an underscore: `_t`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `quick_test`
[INFO] [stderr]   --> src/main.rs:50:1
[INFO] [stderr]    |
[INFO] [stderr] 50 | fn quick_test(num_cities: usize) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `part_a`
[INFO] [stderr]   --> src/main.rs:77:1
[INFO] [stderr]    |
[INFO] [stderr] 77 | fn part_a(){
[INFO] [stderr]    | ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `part_b_and_c`
[INFO] [stderr]   --> src/main.rs:89:1
[INFO] [stderr]    |
[INFO] [stderr] 89 | fn part_b_and_c(){
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `part_d`
[INFO] [stderr]    --> src/main.rs:187:1
[INFO] [stderr]     |
[INFO] [stderr] 187 | fn part_d(trials : u64, monte_pow : usize){
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.34s
[INFO] running `"docker" "inspect" "fdd35683dde3db6c0f50205fd629daf10f756ca34311a68ff9b974f17bf4aea8"`
[INFO] running `"docker" "rm" "-f" "fdd35683dde3db6c0f50205fd629daf10f756ca34311a68ff9b974f17bf4aea8"`
[INFO] [stdout] fdd35683dde3db6c0f50205fd629daf10f756ca34311a68ff9b974f17bf4aea8