[INFO] cloning repository https://github.com/ashleygwilliams/relational_node-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ashleygwilliams/relational_node-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fashleygwilliams%2Frelational_node-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fashleygwilliams%2Frelational_node-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d87ba77c54b3f92b2372fd07daba48055acd5477
[INFO] testing ashleygwilliams/relational_node-rust against beta-2022-02-22 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fashleygwilliams%2Frelational_node-rust" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ashleygwilliams/relational_node-rust on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ashleygwilliams/relational_node-rust
[INFO] finished tweaking git repo https://github.com/ashleygwilliams/relational_node-rust
[INFO] tweaked toml for git repo https://github.com/ashleygwilliams/relational_node-rust written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/ashleygwilliams/relational_node-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3a6cc2d4d7a910ba9de23449fcd707e558193d8e0cd901c7af2ff72a866bb73c
[INFO] running `Command { std: "docker" "start" "-a" "3a6cc2d4d7a910ba9de23449fcd707e558193d8e0cd901c7af2ff72a866bb73c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3a6cc2d4d7a910ba9de23449fcd707e558193d8e0cd901c7af2ff72a866bb73c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a6cc2d4d7a910ba9de23449fcd707e558193d8e0cd901c7af2ff72a866bb73c", kill_on_drop: false }`
[INFO] [stdout] 3a6cc2d4d7a910ba9de23449fcd707e558193d8e0cd901c7af2ff72a866bb73c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 65b9c20878719136c61b8455d58d9896049d1212c2bc3358e97396488a2a2fc2
[INFO] running `Command { std: "docker" "start" "-a" "65b9c20878719136c61b8455d58d9896049d1212c2bc3358e97396488a2a2fc2", kill_on_drop: false }`
[INFO] [stderr]    Compiling relation_node v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Undefined`
[INFO] [stdout]  --> src/value.rs:6:3
[INFO] [stdout]   |
[INFO] [stdout] 6 |   Undefined,
[INFO] [stdout]   |   ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `Value` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/value.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[derive(Clone, PartialEq)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Variable`
[INFO] [stdout]  --> src/value.rs:7:3
[INFO] [stdout]   |
[INFO] [stdout] 7 |   Variable(Variable),
[INFO] [stdout]   |   ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: `Value` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/value.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[derive(Clone, PartialEq)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Object`
[INFO] [stdout]  --> src/value.rs:8:3
[INFO] [stdout]   |
[INFO] [stdout] 8 |   Object(HashMap<String, Value>),
[INFO] [stdout]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: `Value` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/value.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[derive(Clone, PartialEq)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `String`
[INFO] [stdout]  --> src/value.rs:9:3
[INFO] [stdout]   |
[INFO] [stdout] 9 |   String(String),
[INFO] [stdout]   |   ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: `Value` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/value.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[derive(Clone, PartialEq)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Array`
[INFO] [stdout]   --> src/value.rs:10:3
[INFO] [stdout]    |
[INFO] [stdout] 10 |   Array(Vec<Value>),
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Value` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/value.rs:4:10
[INFO] [stdout]    |
[INFO] [stdout] 4  | #[derive(Clone, PartialEq)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Number`
[INFO] [stdout]   --> src/value.rs:11:3
[INFO] [stdout]    |
[INFO] [stdout] 11 |   Number(u32),
[INFO] [stdout]    |   ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Value` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/value.rs:4:10
[INFO] [stdout]    |
[INFO] [stdout] 4  | #[derive(Clone, PartialEq)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Boolean`
[INFO] [stdout]   --> src/value.rs:12:3
[INFO] [stdout]    |
[INFO] [stdout] 12 |   Boolean(bool),
[INFO] [stdout]    |   ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Value` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/value.rs:4:10
[INFO] [stdout]    |
[INFO] [stdout] 4  | #[derive(Clone, PartialEq)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `variables`
[INFO] [stdout]  --> src/state.rs:7:3
[INFO] [stdout]   |
[INFO] [stdout] 7 |   variables: Vec<Variable>,
[INFO] [stdout]   |   ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: `State` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/state.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[derive(Clone)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `values`
[INFO] [stdout]  --> src/state.rs:8:3
[INFO] [stdout]   |
[INFO] [stdout] 8 |   values: HashMap<String, Value>,
[INFO] [stdout]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: `State` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/state.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[derive(Clone)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `create_variables`
[INFO] [stdout]   --> src/state.rs:12:6
[INFO] [stdout]    |
[INFO] [stdout] 12 |   fn create_variables(&self, names: Vec<String>) -> (State, Vec<Variable>) {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `assign_values`
[INFO] [stdout]   --> src/state.rs:20:6
[INFO] [stdout]    |
[INFO] [stdout] 20 |   fn assign_values(&self, new_vals: HashMap<String, Value>) -> State {
[INFO] [stdout]    |      ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `value_of`
[INFO] [stdout]   --> src/state.rs:26:6
[INFO] [stdout]    |
[INFO] [stdout] 26 |   fn value_of(&self, variable: &Variable) -> Value {
[INFO] [stdout]    |      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `unify`
[INFO] [stdout]   --> src/state.rs:37:6
[INFO] [stdout]    |
[INFO] [stdout] 37 |   fn unify(&self, a: &Variable, b: &Variable) -> Option<State> {
[INFO] [stdout]    |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `Command { std: "docker" "inspect" "65b9c20878719136c61b8455d58d9896049d1212c2bc3358e97396488a2a2fc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65b9c20878719136c61b8455d58d9896049d1212c2bc3358e97396488a2a2fc2", kill_on_drop: false }`
[INFO] [stdout] 65b9c20878719136c61b8455d58d9896049d1212c2bc3358e97396488a2a2fc2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6754e803b7d05ff9d442a0ec07af4119157399c054f4d845340c524ae97c7529
[INFO] running `Command { std: "docker" "start" "-a" "6754e803b7d05ff9d442a0ec07af4119157399c054f4d845340c524ae97c7529", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling relation_node v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Undefined`
[INFO] [stdout]  --> src/value.rs:6:3
[INFO] [stdout]   |
[INFO] [stdout] 6 |   Undefined,
[INFO] [stdout]   |   ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `Value` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/value.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[derive(Clone, PartialEq)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Variable`
[INFO] [stdout]  --> src/value.rs:7:3
[INFO] [stdout]   |
[INFO] [stdout] 7 |   Variable(Variable),
[INFO] [stdout]   |   ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: `Value` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/value.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[derive(Clone, PartialEq)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Object`
[INFO] [stdout]  --> src/value.rs:8:3
[INFO] [stdout]   |
[INFO] [stdout] 8 |   Object(HashMap<String, Value>),
[INFO] [stdout]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: `Value` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/value.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[derive(Clone, PartialEq)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `String`
[INFO] [stdout]  --> src/value.rs:9:3
[INFO] [stdout]   |
[INFO] [stdout] 9 |   String(String),
[INFO] [stdout]   |   ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: `Value` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/value.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[derive(Clone, PartialEq)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Array`
[INFO] [stdout]   --> src/value.rs:10:3
[INFO] [stdout]    |
[INFO] [stdout] 10 |   Array(Vec<Value>),
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Value` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/value.rs:4:10
[INFO] [stdout]    |
[INFO] [stdout] 4  | #[derive(Clone, PartialEq)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Number`
[INFO] [stdout]   --> src/value.rs:11:3
[INFO] [stdout]    |
[INFO] [stdout] 11 |   Number(u32),
[INFO] [stdout]    |   ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Value` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/value.rs:4:10
[INFO] [stdout]    |
[INFO] [stdout] 4  | #[derive(Clone, PartialEq)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Boolean`
[INFO] [stdout]   --> src/value.rs:12:3
[INFO] [stdout]    |
[INFO] [stdout] 12 |   Boolean(bool),
[INFO] [stdout]    |   ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Value` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/value.rs:4:10
[INFO] [stdout]    |
[INFO] [stdout] 4  | #[derive(Clone, PartialEq)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `variables`
[INFO] [stdout]  --> src/state.rs:7:3
[INFO] [stdout]   |
[INFO] [stdout] 7 |   variables: Vec<Variable>,
[INFO] [stdout]   |   ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: `State` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/state.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[derive(Clone)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `values`
[INFO] [stdout]  --> src/state.rs:8:3
[INFO] [stdout]   |
[INFO] [stdout] 8 |   values: HashMap<String, Value>,
[INFO] [stdout]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: `State` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/state.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[derive(Clone)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `create_variables`
[INFO] [stdout]   --> src/state.rs:12:6
[INFO] [stdout]    |
[INFO] [stdout] 12 |   fn create_variables(&self, names: Vec<String>) -> (State, Vec<Variable>) {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `assign_values`
[INFO] [stdout]   --> src/state.rs:20:6
[INFO] [stdout]    |
[INFO] [stdout] 20 |   fn assign_values(&self, new_vals: HashMap<String, Value>) -> State {
[INFO] [stdout]    |      ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `value_of`
[INFO] [stdout]   --> src/state.rs:26:6
[INFO] [stdout]    |
[INFO] [stdout] 26 |   fn value_of(&self, variable: &Variable) -> Value {
[INFO] [stdout]    |      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `unify`
[INFO] [stdout]   --> src/state.rs:37:6
[INFO] [stdout]    |
[INFO] [stdout] 37 |   fn unify(&self, a: &Variable, b: &Variable) -> Option<State> {
[INFO] [stdout]    |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.09s
[INFO] running `Command { std: "docker" "inspect" "6754e803b7d05ff9d442a0ec07af4119157399c054f4d845340c524ae97c7529", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6754e803b7d05ff9d442a0ec07af4119157399c054f4d845340c524ae97c7529", kill_on_drop: false }`
[INFO] [stdout] 6754e803b7d05ff9d442a0ec07af4119157399c054f4d845340c524ae97c7529
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4aba18355273a2cf72ba467e6270308a1c090c907a7b1bbca3a7f046420dc0c7
[INFO] running `Command { std: "docker" "start" "-a" "4aba18355273a2cf72ba467e6270308a1c090c907a7b1bbca3a7f046420dc0c7", kill_on_drop: false }`
[INFO] [stderr] warning: variant is never constructed: `Undefined`
[INFO] [stderr]  --> src/value.rs:6:3
[INFO] [stderr]   |
[INFO] [stderr] 6 |   Undefined,
[INFO] [stderr]   |   ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] note: `Value` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]  --> src/value.rs:4:10
[INFO] [stderr]   |
[INFO] [stderr] 4 | #[derive(Clone, PartialEq)]
[INFO] [stderr]   |          ^^^^^
[INFO] [stderr]   = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Variable`
[INFO] [stderr]  --> src/value.rs:7:3
[INFO] [stderr]   |
[INFO] [stderr] 7 |   Variable(Variable),
[INFO] [stderr]   |   ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] note: `Value` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]  --> src/value.rs:4:10
[INFO] [stderr]   |
[INFO] [stderr] 4 | #[derive(Clone, PartialEq)]
[INFO] [stderr]   |          ^^^^^
[INFO] [stderr]   = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Object`
[INFO] [stderr]  --> src/value.rs:8:3
[INFO] [stderr]   |
[INFO] [stderr] 8 |   Object(HashMap<String, Value>),
[INFO] [stderr]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] note: `Value` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]  --> src/value.rs:4:10
[INFO] [stderr]   |
[INFO] [stderr] 4 | #[derive(Clone, PartialEq)]
[INFO] [stderr]   |          ^^^^^
[INFO] [stderr]   = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `String`
[INFO] [stderr]  --> src/value.rs:9:3
[INFO] [stderr]   |
[INFO] [stderr] 9 |   String(String),
[INFO] [stderr]   |   ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] note: `Value` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]  --> src/value.rs:4:10
[INFO] [stderr]   |
[INFO] [stderr] 4 | #[derive(Clone, PartialEq)]
[INFO] [stderr]   |          ^^^^^
[INFO] [stderr]   = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Array`
[INFO] [stderr]   --> src/value.rs:10:3
[INFO] [stderr]    |
[INFO] [stderr] 10 |   Array(Vec<Value>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: `Value` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   --> src/value.rs:4:10
[INFO] [stderr]    |
[INFO] [stderr] 4  | #[derive(Clone, PartialEq)]
[INFO] [stderr]    |          ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Number`
[INFO] [stderr]   --> src/value.rs:11:3
[INFO] [stderr]    |
[INFO] [stderr] 11 |   Number(u32),
[INFO] [stderr]    |   ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: `Value` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   --> src/value.rs:4:10
[INFO] [stderr]    |
[INFO] [stderr] 4  | #[derive(Clone, PartialEq)]
[INFO] [stderr]    |          ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Boolean`
[INFO] [stderr]   --> src/value.rs:12:3
[INFO] [stderr]    |
[INFO] [stderr] 12 |   Boolean(bool),
[INFO] [stderr]    |   ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: `Value` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   --> src/value.rs:4:10
[INFO] [stderr]    |
[INFO] [stderr] 4  | #[derive(Clone, PartialEq)]
[INFO] [stderr]    |          ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `variables`
[INFO] [stderr]  --> src/state.rs:7:3
[INFO] [stderr]   |
[INFO] [stderr] 7 |   variables: Vec<Variable>,
[INFO] [stderr]   |   ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] note: `State` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]  --> src/state.rs:5:10
[INFO] [stderr]   |
[INFO] [stderr] 5 | #[derive(Clone)]
[INFO] [stderr]   |          ^^^^^
[INFO] [stderr]   = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `values`
[INFO] [stderr]  --> src/state.rs:8:3
[INFO] [stderr]   |
[INFO] [stderr] 8 |   values: HashMap<String, Value>,
[INFO] [stderr]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] note: `State` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]  --> src/state.rs:5:10
[INFO] [stderr]   |
[INFO] [stderr] 5 | #[derive(Clone)]
[INFO] [stderr]   |          ^^^^^
[INFO] [stderr]   = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `create_variables`
[INFO] [stderr]   --> src/state.rs:12:6
[INFO] [stderr]    |
[INFO] [stderr] 12 |   fn create_variables(&self, names: Vec<String>) -> (State, Vec<Variable>) {
[INFO] [stderr]    |      ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `assign_values`
[INFO] [stderr]   --> src/state.rs:20:6
[INFO] [stderr]    |
[INFO] [stderr] 20 |   fn assign_values(&self, new_vals: HashMap<String, Value>) -> State {
[INFO] [stderr]    |      ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `value_of`
[INFO] [stderr]   --> src/state.rs:26:6
[INFO] [stderr]    |
[INFO] [stderr] 26 |   fn value_of(&self, variable: &Variable) -> Value {
[INFO] [stderr]    |      ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `unify`
[INFO] [stderr]   --> src/state.rs:37:6
[INFO] [stderr]    |
[INFO] [stderr] 37 |   fn unify(&self, a: &Variable, b: &Variable) -> Option<State> {
[INFO] [stderr]    |      ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `relation_node` (bin "relation_node" test) generated 13 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/relation_node-7de5967edd689007)
[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" "4aba18355273a2cf72ba467e6270308a1c090c907a7b1bbca3a7f046420dc0c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4aba18355273a2cf72ba467e6270308a1c090c907a7b1bbca3a7f046420dc0c7", kill_on_drop: false }`
[INFO] [stdout] 4aba18355273a2cf72ba467e6270308a1c090c907a7b1bbca3a7f046420dc0c7