[INFO] cloning repository https://github.com/kletska/nis
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kletska/nis" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkletska%2Fnis", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkletska%2Fnis'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 507253ab0e7e52ca449815a75c97bf1cafb89bad
[INFO] testing kletska/nis against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkletska%2Fnis" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kletska/nis on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kletska/nis
[INFO] finished tweaking git repo https://github.com/kletska/nis
[INFO] tweaked toml for git repo https://github.com/kletska/nis written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/kletska/nis already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c688f1ca54affe246d47f197e97de137b4e5882aa5d33c40681179a954dbb87e
[INFO] running `Command { std: "docker" "start" "-a" "c688f1ca54affe246d47f197e97de137b4e5882aa5d33c40681179a954dbb87e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c688f1ca54affe246d47f197e97de137b4e5882aa5d33c40681179a954dbb87e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c688f1ca54affe246d47f197e97de137b4e5882aa5d33c40681179a954dbb87e", kill_on_drop: false }`
[INFO] [stdout] c688f1ca54affe246d47f197e97de137b4e5882aa5d33c40681179a954dbb87e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e7e885941cfca64a919c5597edcaa3f9a00d8dd5a1aa60c60f9c8d517285666e
[INFO] running `Command { std: "docker" "start" "-a" "e7e885941cfca64a919c5597edcaa3f9a00d8dd5a1aa60c60f9c8d517285666e", kill_on_drop: false }`
[INFO] [stderr]    Compiling nis v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/our_model.rs:175:15
[INFO] [stdout]     |
[INFO] [stdout] 175 |         .map(|mut x| reverse_transmition_by_cycle(&t, x))
[INFO] [stdout]     |               ----^
[INFO] [stdout]     |               |
[INFO] [stdout]     |               help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `PetriNetStage`
[INFO] [stdout]  --> src/petri_net_model.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct PetriNetStage {
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/petri_net_model.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pub fn new(v: Vec<i32>) -> Option<PetriNetStage> {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/petri_net_model.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn new(coeffs: Vec<i32>) -> PetriNetTransition {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `id`
[INFO] [stdout]   --> src/petri_net_model.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub fn id(size: usize) -> PetriNetTransition {
[INFO] [stdout]    |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `compose`
[INFO] [stdout]   --> src/petri_net_model.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn compose(a: PetriNetTransition, b: PetriNetTransition) -> Option<PetriNetTransition> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_inverse`
[INFO] [stdout]   --> src/petri_net_model.rs:46:12
[INFO] [stdout]    |
[INFO] [stdout] 46 |     pub fn is_inverse(a: &PetriNetTransition, b: &PetriNetTransition) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `check_duality`
[INFO] [stdout]   --> src/petri_net_model.rs:53:12
[INFO] [stdout]    |
[INFO] [stdout] 53 |     pub fn check_duality(&self, colors: &Vec<Color>) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Color`
[INFO] [stdout]   --> src/petri_net_model.rs:68:10
[INFO] [stdout]    |
[INFO] [stdout] 68 | pub enum Color {
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `PetriNet`
[INFO] [stdout]   --> src/petri_net_model.rs:75:12
[INFO] [stdout]    |
[INFO] [stdout] 75 | pub struct PetriNet {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/petri_net_model.rs:81:12
[INFO] [stdout]    |
[INFO] [stdout] 81 |     pub fn new(size: usize, transitions: Vec<PetriNetTransition>) -> PetriNet {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `check_reversibility`
[INFO] [stdout]   --> src/petri_net_model.rs:85:12
[INFO] [stdout]    |
[INFO] [stdout] 85 |     pub fn check_reversibility(&self, reverse: Vec<Vec<PetriNetTransition>>) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `check_duality`
[INFO] [stdout]    --> src/petri_net_model.rs:115:12
[INFO] [stdout]     |
[INFO] [stdout] 115 |     pub fn check_duality(&self, colors: &Vec<Color>) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `vertices_count`
[INFO] [stdout]  --> src/our_model.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | const vertices_count: usize = 45;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `cites_count`
[INFO] [stdout]  --> src/our_model.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | const cites_count: usize = 7;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `vertices_per_city`
[INFO] [stdout]  --> src/our_model.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | const vertices_per_city: usize = 3;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `trains_id`
[INFO] [stdout]  --> src/our_model.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | const trains_id: usize = 0;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `source_id`
[INFO] [stdout]  --> src/our_model.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | const source_id: usize = 1;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `vertices_per_t`
[INFO] [stdout]  --> src/our_model.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | const vertices_per_t: usize = 3;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `train_state`
[INFO] [stdout]  --> src/our_model.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | const train_state: usize = 1;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `train_with_source_state`
[INFO] [stdout]   --> src/our_model.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | const train_with_source_state: usize = 2;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `fast_create_small_road`
[INFO] [stdout]   --> src/our_model.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn fast_create_small_road(from: usize, to: usize) -> Vec<PetriNetTransition> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `fast_create_road`
[INFO] [stdout]   --> src/our_model.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub fn fast_create_road(from: usize, to: usize, ind: usize) -> Vec<PetriNetTransition> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `fast_create_big_road`
[INFO] [stdout]   --> src/our_model.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub fn fast_create_big_road(from: usize, to: usize, ind: usize) -> Vec<PetriNetTransition> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `transitions`
[INFO] [stdout]    --> src/our_model.rs:107:8
[INFO] [stdout]     |
[INFO] [stdout] 107 | pub fn transitions() -> Vec<PetriNetTransition> {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `our_model`
[INFO] [stdout]    --> src/our_model.rs:121:8
[INFO] [stdout]     |
[INFO] [stdout] 121 | pub fn our_model() -> PetriNet {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `reverse_transmition_by_cycle`
[INFO] [stdout]    --> src/our_model.rs:125:8
[INFO] [stdout]     |
[INFO] [stdout] 125 | pub fn reverse_transmition_by_cycle(t: &PetriNetTransition, mut c: Vec<PetriNetTransition>) -> Option<Vec<PetriNetTransition>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `reverse_transmition`
[INFO] [stdout]    --> src/our_model.rs:132:8
[INFO] [stdout]     |
[INFO] [stdout] 132 | pub fn reverse_transmition(t: PetriNetTransition) -> Vec<PetriNetTransition> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `transitions_example`
[INFO] [stdout]    --> src/our_model.rs:184:8
[INFO] [stdout]     |
[INFO] [stdout] 184 | pub fn transitions_example() -> Vec<Vec<PetriNetTransition>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `paint_example`
[INFO] [stdout]    --> src/our_model.rs:191:8
[INFO] [stdout]     |
[INFO] [stdout] 191 | pub fn paint_example() -> Vec<Color> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `vertices_count` should have an upper case name
[INFO] [stdout]  --> src/our_model.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | const vertices_count: usize = 45;
[INFO] [stdout]   |       ^^^^^^^^^^^^^^ help: convert the identifier to upper case: `VERTICES_COUNT`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `cites_count` should have an upper case name
[INFO] [stdout]  --> src/our_model.rs:4:7
[INFO] [stdout]   |
[INFO] [stdout] 4 | const cites_count: usize = 7;
[INFO] [stdout]   |       ^^^^^^^^^^^ help: convert the identifier to upper case: `CITES_COUNT`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `vertices_per_city` should have an upper case name
[INFO] [stdout]  --> src/our_model.rs:5:7
[INFO] [stdout]   |
[INFO] [stdout] 5 | const vertices_per_city: usize = 3;
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^^^ help: convert the identifier to upper case: `VERTICES_PER_CITY`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `trains_id` should have an upper case name
[INFO] [stdout]  --> src/our_model.rs:6:7
[INFO] [stdout]   |
[INFO] [stdout] 6 | const trains_id: usize = 0;
[INFO] [stdout]   |       ^^^^^^^^^ help: convert the identifier to upper case: `TRAINS_ID`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `source_id` should have an upper case name
[INFO] [stdout]  --> src/our_model.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 7 | const source_id: usize = 1;
[INFO] [stdout]   |       ^^^^^^^^^ help: convert the identifier to upper case: `SOURCE_ID`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `vertices_per_t` should have an upper case name
[INFO] [stdout]  --> src/our_model.rs:8:7
[INFO] [stdout]   |
[INFO] [stdout] 8 | const vertices_per_t: usize = 3;
[INFO] [stdout]   |       ^^^^^^^^^^^^^^ help: convert the identifier to upper case: `VERTICES_PER_T`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `train_state` should have an upper case name
[INFO] [stdout]  --> src/our_model.rs:9:7
[INFO] [stdout]   |
[INFO] [stdout] 9 | const train_state: usize = 1;
[INFO] [stdout]   |       ^^^^^^^^^^^ help: convert the identifier to upper case: `TRAIN_STATE`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `train_with_source_state` should have an upper case name
[INFO] [stdout]   --> src/our_model.rs:10:7
[INFO] [stdout]    |
[INFO] [stdout] 10 | const train_with_source_state: usize = 2;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to upper case: `TRAIN_WITH_SOURCE_STATE`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 38 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `Command { std: "docker" "inspect" "e7e885941cfca64a919c5597edcaa3f9a00d8dd5a1aa60c60f9c8d517285666e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7e885941cfca64a919c5597edcaa3f9a00d8dd5a1aa60c60f9c8d517285666e", kill_on_drop: false }`
[INFO] [stdout] e7e885941cfca64a919c5597edcaa3f9a00d8dd5a1aa60c60f9c8d517285666e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 24d6f1eb47aa58a814cdffb0d2942799cc5a99a89786ad2606c2c6e67c16aff6
[INFO] running `Command { std: "docker" "start" "-a" "24d6f1eb47aa58a814cdffb0d2942799cc5a99a89786ad2606c2c6e67c16aff6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling nis v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::transitions_example`
[INFO] [stdout]    --> src/our_model.rs:224:9
[INFO] [stdout]     |
[INFO] [stdout] 224 |     use super::transitions_example;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/our_model.rs:175:15
[INFO] [stdout]     |
[INFO] [stdout] 175 |         .map(|mut x| reverse_transmition_by_cycle(&t, x))
[INFO] [stdout]     |               ----^
[INFO] [stdout]     |               |
[INFO] [stdout]     |               help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `PetriNetStage`
[INFO] [stdout]  --> src/petri_net_model.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct PetriNetStage {
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/petri_net_model.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pub fn new(v: Vec<i32>) -> Option<PetriNetStage> {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `id`
[INFO] [stdout]   --> src/petri_net_model.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub fn id(size: usize) -> PetriNetTransition {
[INFO] [stdout]    |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `compose`
[INFO] [stdout]   --> src/petri_net_model.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn compose(a: PetriNetTransition, b: PetriNetTransition) -> Option<PetriNetTransition> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_inverse`
[INFO] [stdout]   --> src/petri_net_model.rs:46:12
[INFO] [stdout]    |
[INFO] [stdout] 46 |     pub fn is_inverse(a: &PetriNetTransition, b: &PetriNetTransition) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `size`
[INFO] [stdout]   --> src/petri_net_model.rs:76:5
[INFO] [stdout]    |
[INFO] [stdout] 76 |     size: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `check_reversibility`
[INFO] [stdout]   --> src/petri_net_model.rs:85:12
[INFO] [stdout]    |
[INFO] [stdout] 85 |     pub fn check_reversibility(&self, reverse: Vec<Vec<PetriNetTransition>>) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `reverse_transmition_by_cycle`
[INFO] [stdout]    --> src/our_model.rs:125:8
[INFO] [stdout]     |
[INFO] [stdout] 125 | pub fn reverse_transmition_by_cycle(t: &PetriNetTransition, mut c: Vec<PetriNetTransition>) -> Option<Vec<PetriNetTransition>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `reverse_transmition`
[INFO] [stdout]    --> src/our_model.rs:132:8
[INFO] [stdout]     |
[INFO] [stdout] 132 | pub fn reverse_transmition(t: PetriNetTransition) -> Vec<PetriNetTransition> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `transitions_example`
[INFO] [stdout]    --> src/our_model.rs:184:8
[INFO] [stdout]     |
[INFO] [stdout] 184 | pub fn transitions_example() -> Vec<Vec<PetriNetTransition>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `vertices_count` should have an upper case name
[INFO] [stdout]  --> src/our_model.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | const vertices_count: usize = 45;
[INFO] [stdout]   |       ^^^^^^^^^^^^^^ help: convert the identifier to upper case: `VERTICES_COUNT`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `cites_count` should have an upper case name
[INFO] [stdout]  --> src/our_model.rs:4:7
[INFO] [stdout]   |
[INFO] [stdout] 4 | const cites_count: usize = 7;
[INFO] [stdout]   |       ^^^^^^^^^^^ help: convert the identifier to upper case: `CITES_COUNT`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `vertices_per_city` should have an upper case name
[INFO] [stdout]  --> src/our_model.rs:5:7
[INFO] [stdout]   |
[INFO] [stdout] 5 | const vertices_per_city: usize = 3;
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^^^ help: convert the identifier to upper case: `VERTICES_PER_CITY`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `trains_id` should have an upper case name
[INFO] [stdout]  --> src/our_model.rs:6:7
[INFO] [stdout]   |
[INFO] [stdout] 6 | const trains_id: usize = 0;
[INFO] [stdout]   |       ^^^^^^^^^ help: convert the identifier to upper case: `TRAINS_ID`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `source_id` should have an upper case name
[INFO] [stdout]  --> src/our_model.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 7 | const source_id: usize = 1;
[INFO] [stdout]   |       ^^^^^^^^^ help: convert the identifier to upper case: `SOURCE_ID`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `vertices_per_t` should have an upper case name
[INFO] [stdout]  --> src/our_model.rs:8:7
[INFO] [stdout]   |
[INFO] [stdout] 8 | const vertices_per_t: usize = 3;
[INFO] [stdout]   |       ^^^^^^^^^^^^^^ help: convert the identifier to upper case: `VERTICES_PER_T`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `train_state` should have an upper case name
[INFO] [stdout]  --> src/our_model.rs:9:7
[INFO] [stdout]   |
[INFO] [stdout] 9 | const train_state: usize = 1;
[INFO] [stdout]   |       ^^^^^^^^^^^ help: convert the identifier to upper case: `TRAIN_STATE`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `train_with_source_state` should have an upper case name
[INFO] [stdout]   --> src/our_model.rs:10:7
[INFO] [stdout]    |
[INFO] [stdout] 10 | const train_with_source_state: usize = 2;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to upper case: `TRAIN_WITH_SOURCE_STATE`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.86s
[INFO] [stdout] warning: 20 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/nis-716b7b26a0ec2263)
[INFO] running `Command { std: "docker" "inspect" "24d6f1eb47aa58a814cdffb0d2942799cc5a99a89786ad2606c2c6e67c16aff6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24d6f1eb47aa58a814cdffb0d2942799cc5a99a89786ad2606c2c6e67c16aff6", kill_on_drop: false }`
[INFO] [stdout] 24d6f1eb47aa58a814cdffb0d2942799cc5a99a89786ad2606c2c6e67c16aff6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2d02e73618c8204538440ddec341e41147bcc045b256e1a83ca3fdf20028819e
[INFO] running `Command { std: "docker" "start" "-a" "2d02e73618c8204538440ddec341e41147bcc045b256e1a83ca3fdf20028819e", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `super::transitions_example`
[INFO] [stderr]    --> src/our_model.rs:224:9
[INFO] [stderr]     |
[INFO] [stderr] 224 |     use super::transitions_example;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/our_model.rs:175:15
[INFO] [stderr]     |
[INFO] [stderr] 175 |         .map(|mut x| reverse_transmition_by_cycle(&t, x))
[INFO] [stderr]     |               ----^
[INFO] [stderr]     |               |
[INFO] [stderr]     |               help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `PetriNetStage`
[INFO] [stderr]  --> src/petri_net_model.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub struct PetriNetStage {
[INFO] [stderr]   |            ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]  --> src/petri_net_model.rs:6:12
[INFO] [stderr]   |
[INFO] [stderr] 6 |     pub fn new(v: Vec<i32>) -> Option<PetriNetStage> {
[INFO] [stderr]   |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `id`
[INFO] [stderr]   --> src/petri_net_model.rs:28:12
[INFO] [stderr]    |
[INFO] [stderr] 28 |     pub fn id(size: usize) -> PetriNetTransition {
[INFO] [stderr]    |            ^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `compose`
[INFO] [stderr]   --> src/petri_net_model.rs:32:12
[INFO] [stderr]    |
[INFO] [stderr] 32 |     pub fn compose(a: PetriNetTransition, b: PetriNetTransition) -> Option<PetriNetTransition> {
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_inverse`
[INFO] [stderr]   --> src/petri_net_model.rs:46:12
[INFO] [stderr]    |
[INFO] [stderr] 46 |     pub fn is_inverse(a: &PetriNetTransition, b: &PetriNetTransition) -> bool {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `size`
[INFO] [stderr]   --> src/petri_net_model.rs:76:5
[INFO] [stderr]    |
[INFO] [stderr] 76 |     size: usize,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `check_reversibility`
[INFO] [stderr]   --> src/petri_net_model.rs:85:12
[INFO] [stderr]    |
[INFO] [stderr] 85 |     pub fn check_reversibility(&self, reverse: Vec<Vec<PetriNetTransition>>) -> bool {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `reverse_transmition_by_cycle`
[INFO] [stderr]    --> src/our_model.rs:125:8
[INFO] [stderr]     |
[INFO] [stderr] 125 | pub fn reverse_transmition_by_cycle(t: &PetriNetTransition, mut c: Vec<PetriNetTransition>) -> Option<Vec<PetriNetTransition>> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `reverse_transmition`
[INFO] [stderr]    --> src/our_model.rs:132:8
[INFO] [stderr]     |
[INFO] [stderr] 132 | pub fn reverse_transmition(t: PetriNetTransition) -> Vec<PetriNetTransition> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `transitions_example`
[INFO] [stderr]    --> src/our_model.rs:184:8
[INFO] [stderr]     |
[INFO] [stderr] 184 | pub fn transitions_example() -> Vec<Vec<PetriNetTransition>> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `vertices_count` should have an upper case name
[INFO] [stderr]  --> src/our_model.rs:3:7
[INFO] [stderr]   |
[INFO] [stderr] 3 | const vertices_count: usize = 45;
[INFO] [stderr]   |       ^^^^^^^^^^^^^^ help: convert the identifier to upper case: `VERTICES_COUNT`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `cites_count` should have an upper case name
[INFO] [stderr]  --> src/our_model.rs:4:7
[INFO] [stderr]   |
[INFO] [stderr] 4 | const cites_count: usize = 7;
[INFO] [stderr]   |       ^^^^^^^^^^^ help: convert the identifier to upper case: `CITES_COUNT`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `vertices_per_city` should have an upper case name
[INFO] [stderr]  --> src/our_model.rs:5:7
[INFO] [stderr]   |
[INFO] [stderr] 5 | const vertices_per_city: usize = 3;
[INFO] [stderr]   |       ^^^^^^^^^^^^^^^^^ help: convert the identifier to upper case: `VERTICES_PER_CITY`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `trains_id` should have an upper case name
[INFO] [stderr]  --> src/our_model.rs:6:7
[INFO] [stderr]   |
[INFO] [stderr] 6 | const trains_id: usize = 0;
[INFO] [stderr]   |       ^^^^^^^^^ help: convert the identifier to upper case: `TRAINS_ID`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `source_id` should have an upper case name
[INFO] [stderr]  --> src/our_model.rs:7:7
[INFO] [stderr]   |
[INFO] [stderr] 7 | const source_id: usize = 1;
[INFO] [stderr]   |       ^^^^^^^^^ help: convert the identifier to upper case: `SOURCE_ID`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `vertices_per_t` should have an upper case name
[INFO] [stderr]  --> src/our_model.rs:8:7
[INFO] [stderr]   |
[INFO] [stderr] 8 | const vertices_per_t: usize = 3;
[INFO] [stderr]   |       ^^^^^^^^^^^^^^ help: convert the identifier to upper case: `VERTICES_PER_T`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `train_state` should have an upper case name
[INFO] [stderr]  --> src/our_model.rs:9:7
[INFO] [stderr]   |
[INFO] [stderr] 9 | const train_state: usize = 1;
[INFO] [stderr]   |       ^^^^^^^^^^^ help: convert the identifier to upper case: `TRAIN_STATE`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `train_with_source_state` should have an upper case name
[INFO] [stderr]   --> src/our_model.rs:10:7
[INFO] [stderr]    |
[INFO] [stderr] 10 | const train_with_source_state: usize = 2;
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to upper case: `TRAIN_WITH_SOURCE_STATE`
[INFO] [stderr] 
[INFO] [stderr] warning: `nis` (bin "nis" test) generated 20 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/nis-716b7b26a0ec2263)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test our_model::tests::reversibility_test ... ok
[INFO] [stdout] test our_model::tests::color_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2d02e73618c8204538440ddec341e41147bcc045b256e1a83ca3fdf20028819e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d02e73618c8204538440ddec341e41147bcc045b256e1a83ca3fdf20028819e", kill_on_drop: false }`
[INFO] [stdout] 2d02e73618c8204538440ddec341e41147bcc045b256e1a83ca3fdf20028819e