[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-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fashleygwilliams%2Frelational_node-rust" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ashleygwilliams/relational_node-rust on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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-0/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-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 27b4578061f5d84651a6568208a30dff002430411599001560cdb6a28d778f89
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "27b4578061f5d84651a6568208a30dff002430411599001560cdb6a28d778f89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "27b4578061f5d84651a6568208a30dff002430411599001560cdb6a28d778f89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27b4578061f5d84651a6568208a30dff002430411599001560cdb6a28d778f89", kill_on_drop: false }`
[INFO] [stdout] 27b4578061f5d84651a6568208a30dff002430411599001560cdb6a28d778f89
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 43ea22c30be584534c80d05e49e253904d8c7cb52c94d4eb5a52f56e14ca5e26
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "43ea22c30be584534c80d05e49e253904d8c7cb52c94d4eb5a52f56e14ca5e26", 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] 
[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] 
[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] 
[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] 
[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] 
[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] 
[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] 
[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: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `Command { std: "docker" "inspect" "43ea22c30be584534c80d05e49e253904d8c7cb52c94d4eb5a52f56e14ca5e26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43ea22c30be584534c80d05e49e253904d8c7cb52c94d4eb5a52f56e14ca5e26", kill_on_drop: false }`
[INFO] [stdout] 43ea22c30be584534c80d05e49e253904d8c7cb52c94d4eb5a52f56e14ca5e26
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ef429f7e12d34a6b6c5d92e3cf1a9fc0fd2984ca86c4a0c3c8dfe9e3040c8fea
[INFO] running `Command { std: "docker" "start" "-a" "ef429f7e12d34a6b6c5d92e3cf1a9fc0fd2984ca86c4a0c3c8dfe9e3040c8fea", 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] 
[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] 
[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] 
[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] 
[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] 
[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] 
[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] 
[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: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `Command { std: "docker" "inspect" "ef429f7e12d34a6b6c5d92e3cf1a9fc0fd2984ca86c4a0c3c8dfe9e3040c8fea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef429f7e12d34a6b6c5d92e3cf1a9fc0fd2984ca86c4a0c3c8dfe9e3040c8fea", kill_on_drop: false }`
[INFO] [stdout] ef429f7e12d34a6b6c5d92e3cf1a9fc0fd2984ca86c4a0c3c8dfe9e3040c8fea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b2072de739cbc2082ac8de4aa67dce98a9d3110d0ba060c01b7e0c04ecbd4101
[INFO] running `Command { std: "docker" "start" "-a" "b2072de739cbc2082ac8de4aa67dce98a9d3110d0ba060c01b7e0c04ecbd4101", 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] 
[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] 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] 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] 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] 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] 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] 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 11 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[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" "b2072de739cbc2082ac8de4aa67dce98a9d3110d0ba060c01b7e0c04ecbd4101", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2072de739cbc2082ac8de4aa67dce98a9d3110d0ba060c01b7e0c04ecbd4101", kill_on_drop: false }`
[INFO] [stdout] b2072de739cbc2082ac8de4aa67dce98a9d3110d0ba060c01b7e0c04ecbd4101