[INFO] cloning repository https://github.com/my4ng/csp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/my4ng/csp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmy4ng%2Fcsp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmy4ng%2Fcsp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f5b668ea7de82d179e9b016aeb47c360226560e9
[INFO] testing my4ng/csp against master#595316b4006932405a63862d8fe65f71a6356293 for pr-128254
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmy4ng%2Fcsp" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/my4ng/csp on toolchain 595316b4006932405a63862d8fe65f71a6356293
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+595316b4006932405a63862d8fe65f71a6356293" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/my4ng/csp
[INFO] finished tweaking git repo https://github.com/my4ng/csp
[INFO] tweaked toml for git repo https://github.com/my4ng/csp written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/my4ng/csp 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" "+595316b4006932405a63862d8fe65f71a6356293" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+595316b4006932405a63862d8fe65f71a6356293" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f8b401cc9cab9542c096e794c032a16be0b4d75ade6b8af8786414800c602ed8
[INFO] running `Command { std: "docker" "start" "-a" "f8b401cc9cab9542c096e794c032a16be0b4d75ade6b8af8786414800c602ed8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f8b401cc9cab9542c096e794c032a16be0b4d75ade6b8af8786414800c602ed8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8b401cc9cab9542c096e794c032a16be0b4d75ade6b8af8786414800c602ed8", kill_on_drop: false }`
[INFO] [stdout] f8b401cc9cab9542c096e794c032a16be0b4d75ade6b8af8786414800c602ed8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+595316b4006932405a63862d8fe65f71a6356293" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 97e0306a209b4b9edaddabfb7dd5ce1d18ebb82b5ada3aa97d6fa22bb38d6191
[INFO] running `Command { std: "docker" "start" "-a" "97e0306a209b4b9edaddabfb7dd5ce1d18ebb82b5ada3aa97d6fa22bb38d6191", kill_on_drop: false }`
[INFO] [stderr]    Compiling csp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Variable` is never constructed
[INFO] [stdout]  --> src/lib.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct Variable<T: Domainable> {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/lib.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl<T: Domainable> Variable<T> {
[INFO] [stdout]    | ------------------------------- associated function in this implementation
[INFO] [stdout] 19 |     fn new(domain: HashSet<T>) -> Variable<T> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BinaryConstraint` is never constructed
[INFO] [stdout]   --> src/lib.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub struct BinaryConstraint<'a, T: Domainable> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/lib.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | impl<'a, T: Domainable> BinaryConstraint<'a, T> {
[INFO] [stdout]    | ----------------------------------------------- associated function in this implementation
[INFO] [stdout] 32 |     fn new(
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Constraints` is never constructed
[INFO] [stdout]   --> src/lib.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 52 | pub struct Constraints<'a, T: Domainable> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/lib.rs:57:8
[INFO] [stdout]    |
[INFO] [stdout] 56 | impl<'a, T: Domainable> Constraints<'a, T> {
[INFO] [stdout]    | ------------------------------------------ associated function in this implementation
[INFO] [stdout] 57 |     fn new(constraints: HashSet<&'a BinaryConstraint<'a, T>>) -> Constraints<'a, T> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `State` is never constructed
[INFO] [stdout]   --> src/lib.rs:64:12
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub struct State<'a, T: Domainable> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `is_consistent`, and `is_complete` are never used
[INFO] [stdout]    --> src/lib.rs:69:8
[INFO] [stdout]     |
[INFO] [stdout] 68  | impl<'a, T: Domainable> State<'a, T> {
[INFO] [stdout]     | ------------------------------------ associated items in this implementation
[INFO] [stdout] 69  |     fn new(variables: HashSet<&'a Variable<T>>) -> State<'a, T> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 79  |     fn is_consistent(&self, constraints: &Constraints<'a, T>) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 103 |     fn is_complete(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BinaryConstraint` and `Variable`
[INFO] [stdout]  --> src/main.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use csp::{BinaryConstraint, Variable};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] running `Command { std: "docker" "inspect" "97e0306a209b4b9edaddabfb7dd5ce1d18ebb82b5ada3aa97d6fa22bb38d6191", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97e0306a209b4b9edaddabfb7dd5ce1d18ebb82b5ada3aa97d6fa22bb38d6191", kill_on_drop: false }`
[INFO] [stdout] 97e0306a209b4b9edaddabfb7dd5ce1d18ebb82b5ada3aa97d6fa22bb38d6191
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+595316b4006932405a63862d8fe65f71a6356293" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1b4471dfe8d88c1f9c53288a48e8a51aa8e6ff085e6b38c1f3b343db7c9323de
[INFO] running `Command { std: "docker" "start" "-a" "1b4471dfe8d88c1f9c53288a48e8a51aa8e6ff085e6b38c1f3b343db7c9323de", kill_on_drop: false }`
[INFO] [stdout] warning: struct `Variable` is never constructed
[INFO] [stdout]  --> src/lib.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct Variable<T: Domainable> {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/lib.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl<T: Domainable> Variable<T> {
[INFO] [stdout]    | ------------------------------- associated function in this implementation
[INFO] [stdout] 19 |     fn new(domain: HashSet<T>) -> Variable<T> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BinaryConstraint` is never constructed
[INFO] [stdout]   --> src/lib.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub struct BinaryConstraint<'a, T: Domainable> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/lib.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | impl<'a, T: Domainable> BinaryConstraint<'a, T> {
[INFO] [stdout]    | ----------------------------------------------- associated function in this implementation
[INFO] [stdout] 32 |     fn new(
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Constraints` is never constructed
[INFO] [stdout]   --> src/lib.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 52 | pub struct Constraints<'a, T: Domainable> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/lib.rs:57:8
[INFO] [stdout]    |
[INFO] [stdout] 56 | impl<'a, T: Domainable> Constraints<'a, T> {
[INFO] [stdout]    | ------------------------------------------ associated function in this implementation
[INFO] [stdout] 57 |     fn new(constraints: HashSet<&'a BinaryConstraint<'a, T>>) -> Constraints<'a, T> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `State` is never constructed
[INFO] [stdout]   --> src/lib.rs:64:12
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub struct State<'a, T: Domainable> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `is_consistent`, and `is_complete` are never used
[INFO] [stdout]    --> src/lib.rs:69:8
[INFO] [stdout]     |
[INFO] [stdout] 68  | impl<'a, T: Domainable> State<'a, T> {
[INFO] [stdout]     | ------------------------------------ associated items in this implementation
[INFO] [stdout] 69  |     fn new(variables: HashSet<&'a Variable<T>>) -> State<'a, T> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 79  |     fn is_consistent(&self, constraints: &Constraints<'a, T>) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 103 |     fn is_complete(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling csp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BinaryConstraint` and `Variable`
[INFO] [stdout]  --> src/main.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use csp::{BinaryConstraint, Variable};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `binary_constraint`
[INFO] [stdout]    --> src/lib.rs:143:13
[INFO] [stdout]     |
[INFO] [stdout] 143 |         let binary_constraint = BinaryConstraint::new(&var1, 3, &var2, 3);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_binary_constraint`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `binary_constraint`
[INFO] [stdout]    --> src/lib.rs:151:13
[INFO] [stdout]     |
[INFO] [stdout] 151 |         let binary_constraint = BinaryConstraint::new(&var1, 4, &var2, 4);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_binary_constraint`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Constraints` is never constructed
[INFO] [stdout]   --> src/lib.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 52 | pub struct Constraints<'a, T: Domainable> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/lib.rs:57:8
[INFO] [stdout]    |
[INFO] [stdout] 56 | impl<'a, T: Domainable> Constraints<'a, T> {
[INFO] [stdout]    | ------------------------------------------ associated function in this implementation
[INFO] [stdout] 57 |     fn new(constraints: HashSet<&'a BinaryConstraint<'a, T>>) -> Constraints<'a, T> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `State` is never constructed
[INFO] [stdout]   --> src/lib.rs:64:12
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub struct State<'a, T: Domainable> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `is_consistent`, and `is_complete` are never used
[INFO] [stdout]    --> src/lib.rs:69:8
[INFO] [stdout]     |
[INFO] [stdout] 68  | impl<'a, T: Domainable> State<'a, T> {
[INFO] [stdout]     | ------------------------------------ associated items in this implementation
[INFO] [stdout] 69  |     fn new(variables: HashSet<&'a Variable<T>>) -> State<'a, T> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 79  |     fn is_consistent(&self, constraints: &Constraints<'a, T>) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 103 |     fn is_complete(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.16s
[INFO] running `Command { std: "docker" "inspect" "1b4471dfe8d88c1f9c53288a48e8a51aa8e6ff085e6b38c1f3b343db7c9323de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b4471dfe8d88c1f9c53288a48e8a51aa8e6ff085e6b38c1f3b343db7c9323de", kill_on_drop: false }`
[INFO] [stdout] 1b4471dfe8d88c1f9c53288a48e8a51aa8e6ff085e6b38c1f3b343db7c9323de
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+595316b4006932405a63862d8fe65f71a6356293" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 173a3d0f1ca9e7a47e929d73db2c48ed0330dd21d5319576df03b0a2eb0dd0ec
[INFO] running `Command { std: "docker" "start" "-a" "173a3d0f1ca9e7a47e929d73db2c48ed0330dd21d5319576df03b0a2eb0dd0ec", kill_on_drop: false }`
[INFO] [stderr] warning: struct `Variable` is never constructed
[INFO] [stderr]  --> src/lib.rs:8:12
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub struct Variable<T: Domainable> {
[INFO] [stderr]   |            ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> src/lib.rs:19:8
[INFO] [stderr]    |
[INFO] [stderr] 18 | impl<T: Domainable> Variable<T> {
[INFO] [stderr]    | ------------------------------- associated function in this implementation
[INFO] [stderr] 19 |     fn new(domain: HashSet<T>) -> Variable<T> {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `BinaryConstraint` is never constructed
[INFO] [stderr]   --> src/lib.rs:24:12
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub struct BinaryConstraint<'a, T: Domainable> {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> src/lib.rs:32:8
[INFO] [stderr]    |
[INFO] [stderr] 31 | impl<'a, T: Domainable> BinaryConstraint<'a, T> {
[INFO] [stderr]    | ----------------------------------------------- associated function in this implementation
[INFO] [stderr] 32 |     fn new(
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Constraints` is never constructed
[INFO] [stderr]   --> src/lib.rs:52:12
[INFO] [stderr]    |
[INFO] [stderr] 52 | pub struct Constraints<'a, T: Domainable> {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> src/lib.rs:57:8
[INFO] [stderr]    |
[INFO] [stderr] 56 | impl<'a, T: Domainable> Constraints<'a, T> {
[INFO] [stderr]    | ------------------------------------------ associated function in this implementation
[INFO] [stderr] 57 |     fn new(constraints: HashSet<&'a BinaryConstraint<'a, T>>) -> Constraints<'a, T> {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `State` is never constructed
[INFO] [stderr]   --> src/lib.rs:64:12
[INFO] [stderr]    |
[INFO] [stderr] 64 | pub struct State<'a, T: Domainable> {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `is_consistent`, and `is_complete` are never used
[INFO] [stderr]    --> src/lib.rs:69:8
[INFO] [stderr]     |
[INFO] [stderr] 68  | impl<'a, T: Domainable> State<'a, T> {
[INFO] [stderr]     | ------------------------------------ associated items in this implementation
[INFO] [stderr] 69  |     fn new(variables: HashSet<&'a Variable<T>>) -> State<'a, T> {
[INFO] [stderr]     |        ^^^
[INFO] [stderr] ...
[INFO] [stderr] 79  |     fn is_consistent(&self, constraints: &Constraints<'a, T>) -> bool {
[INFO] [stderr]     |        ^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 103 |     fn is_complete(&self) -> bool {
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `csp` (lib) generated 8 warnings
[INFO] [stderr] warning: unused imports: `BinaryConstraint` and `Variable`
[INFO] [stderr]  --> src/main.rs:1:11
[INFO] [stderr]   |
[INFO] [stderr] 1 | use csp::{BinaryConstraint, Variable};
[INFO] [stderr]   |           ^^^^^^^^^^^^^^^^  ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `csp` (bin "csp" test) generated 1 warning (run `cargo fix --bin "csp" --tests` to apply 1 suggestion)
[INFO] [stderr] warning: unused variable: `binary_constraint`
[INFO] [stderr]    --> src/lib.rs:143:13
[INFO] [stderr]     |
[INFO] [stderr] 143 |         let binary_constraint = BinaryConstraint::new(&var1, 3, &var2, 3);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_binary_constraint`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `binary_constraint`
[INFO] [stderr]    --> src/lib.rs:151:13
[INFO] [stderr]     |
[INFO] [stderr] 151 |         let binary_constraint = BinaryConstraint::new(&var1, 4, &var2, 4);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_binary_constraint`
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Constraints` is never constructed
[INFO] [stderr]   --> src/lib.rs:52:12
[INFO] [stderr]    |
[INFO] [stderr] 52 | pub struct Constraints<'a, T: Domainable> {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `csp` (lib test) generated 6 warnings (3 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/csp-4a87d5e9e2caea76)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::new_variable_domain ... ok
[INFO] [stdout] test tests::new_binary_constraint_success ... ok
[INFO] [stdout] test tests::new_binary_constraint_fail1 - should panic ... ok
[INFO] [stdout] test tests::new_binary_constraint_fail2 - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/csp-315c289fc44121d8)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests csp
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "173a3d0f1ca9e7a47e929d73db2c48ed0330dd21d5319576df03b0a2eb0dd0ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "173a3d0f1ca9e7a47e929d73db2c48ed0330dd21d5319576df03b0a2eb0dd0ec", kill_on_drop: false }`
[INFO] [stdout] 173a3d0f1ca9e7a47e929d73db2c48ed0330dd21d5319576df03b0a2eb0dd0ec