Dec 19 20:16:46.890 INFO checking ashleygwilliams/relational_node-rust against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 20:16:46.890 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-7/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/ashleygwilliams/relational_node-rust:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 20:16:47.036 INFO [stdout] a82550e3f6f67e9ed84b34731b7f13cd34c8ab6b3734d8804efda50baaa09371
Dec 19 20:16:47.036 INFO running `"docker" "start" "-a" "a82550e3f6f67e9ed84b34731b7f13cd34c8ab6b3734d8804efda50baaa09371"`
Dec 19 20:16:47.666 INFO [stderr]     Checking relation_node v0.1.0 (/opt/crater/workdir)
Dec 19 20:16:47.876 INFO [stderr] warning: variant is never constructed: `Undefined`
Dec 19 20:16:47.876 INFO [stderr]  --> src/value.rs:6:3
Dec 19 20:16:47.876 INFO [stderr]   |
Dec 19 20:16:47.876 INFO [stderr] 6 |   Undefined,
Dec 19 20:16:47.876 INFO [stderr]   |   ^^^^^^^^^
Dec 19 20:16:47.876 INFO [stderr]   |
Dec 19 20:16:47.876 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 19 20:16:47.876 INFO [stderr] 
Dec 19 20:16:47.876 INFO [stderr] warning: variant is never constructed: `Variable`
Dec 19 20:16:47.876 INFO [stderr]  --> src/value.rs:7:3
Dec 19 20:16:47.876 INFO [stderr]   |
Dec 19 20:16:47.876 INFO [stderr] 7 |   Variable(Variable),
Dec 19 20:16:47.876 INFO [stderr]   |   ^^^^^^^^^^^^^^^^^^
Dec 19 20:16:47.876 INFO [stderr] 
Dec 19 20:16:47.876 INFO [stderr] warning: variant is never constructed: `Object`
Dec 19 20:16:47.876 INFO [stderr]  --> src/value.rs:8:3
Dec 19 20:16:47.876 INFO [stderr]   |
Dec 19 20:16:47.876 INFO [stderr] 8 |   Object(HashMap<String, Value>),
Dec 19 20:16:47.876 INFO [stderr]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:16:47.876 INFO [stderr] 
Dec 19 20:16:47.876 INFO [stderr] warning: variant is never constructed: `String`
Dec 19 20:16:47.876 INFO [stderr]  --> src/value.rs:9:3
Dec 19 20:16:47.876 INFO [stderr]   |
Dec 19 20:16:47.876 INFO [stderr] 9 |   String(String),
Dec 19 20:16:47.876 INFO [stderr]   |   ^^^^^^^^^^^^^^
Dec 19 20:16:47.876 INFO [stderr] 
Dec 19 20:16:47.876 INFO [stderr] warning: variant is never constructed: `Array`
Dec 19 20:16:47.876 INFO [stderr]   --> src/value.rs:10:3
Dec 19 20:16:47.876 INFO [stderr]    |
Dec 19 20:16:47.876 INFO [stderr] 10 |   Array(Vec<Value>),
Dec 19 20:16:47.876 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^
Dec 19 20:16:47.876 INFO [stderr] 
Dec 19 20:16:47.876 INFO [stderr] warning: variant is never constructed: `Number`
Dec 19 20:16:47.876 INFO [stderr]   --> src/value.rs:11:3
Dec 19 20:16:47.876 INFO [stderr]    |
Dec 19 20:16:47.876 INFO [stderr] 11 |   Number(u32),
Dec 19 20:16:47.876 INFO [stderr]    |   ^^^^^^^^^^^
Dec 19 20:16:47.876 INFO [stderr] 
Dec 19 20:16:47.876 INFO [stderr] warning: variant is never constructed: `Boolean`
Dec 19 20:16:47.876 INFO [stderr]   --> src/value.rs:12:3
Dec 19 20:16:47.876 INFO [stderr]    |
Dec 19 20:16:47.876 INFO [stderr] 12 |   Boolean(bool),
Dec 19 20:16:47.876 INFO [stderr]    |   ^^^^^^^^^^^^^
Dec 19 20:16:47.876 INFO [stderr] 
Dec 19 20:16:47.876 INFO [stderr] warning: method is never used: `create_variables`
Dec 19 20:16:47.876 INFO [stderr]   --> src/state.rs:12:3
Dec 19 20:16:47.876 INFO [stderr]    |
Dec 19 20:16:47.876 INFO [stderr] 12 |   fn create_variables(&self, names: Vec<String>) -> (State, Vec<Variable>) {
Dec 19 20:16:47.876 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:16:47.876 INFO [stderr] 
Dec 19 20:16:47.876 INFO [stderr] warning: method is never used: `assign_values`
Dec 19 20:16:47.876 INFO [stderr]   --> src/state.rs:20:3
Dec 19 20:16:47.876 INFO [stderr]    |
Dec 19 20:16:47.876 INFO [stderr] 20 |   fn assign_values(&self, new_vals: HashMap<String, Value>) -> State {
Dec 19 20:16:47.876 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:16:47.876 INFO [stderr] 
Dec 19 20:16:47.876 INFO [stderr] warning: method is never used: `value_of`
Dec 19 20:16:47.876 INFO [stderr]   --> src/state.rs:26:3
Dec 19 20:16:47.876 INFO [stderr]    |
Dec 19 20:16:47.876 INFO [stderr] 26 |   fn value_of(&self, variable: &Variable) -> Value {
Dec 19 20:16:47.876 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:16:47.876 INFO [stderr] 
Dec 19 20:16:47.876 INFO [stderr] warning: method is never used: `unify`
Dec 19 20:16:47.876 INFO [stderr]   --> src/state.rs:37:3
Dec 19 20:16:47.876 INFO [stderr]    |
Dec 19 20:16:47.876 INFO [stderr] 37 |   fn unify(&self, a: &Variable, b: &Variable) -> Option<State> {
Dec 19 20:16:47.876 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:16:47.876 INFO [stderr] 
Dec 19 20:16:47.904 INFO [stderr] warning: variant is never constructed: `Undefined`
Dec 19 20:16:47.904 INFO [stderr]  --> src/value.rs:6:3
Dec 19 20:16:47.904 INFO [stderr]   |
Dec 19 20:16:47.904 INFO [stderr] 6 |   Undefined,
Dec 19 20:16:47.904 INFO [stderr]   |   ^^^^^^^^^
Dec 19 20:16:47.904 INFO [stderr]   |
Dec 19 20:16:47.904 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 19 20:16:47.904 INFO [stderr] 
Dec 19 20:16:47.904 INFO [stderr] warning: variant is never constructed: `Variable`
Dec 19 20:16:47.904 INFO [stderr]  --> src/value.rs:7:3
Dec 19 20:16:47.904 INFO [stderr]   |
Dec 19 20:16:47.904 INFO [stderr] 7 |   Variable(Variable),
Dec 19 20:16:47.904 INFO [stderr]   |   ^^^^^^^^^^^^^^^^^^
Dec 19 20:16:47.904 INFO [stderr] 
Dec 19 20:16:47.904 INFO [stderr] warning: variant is never constructed: `Object`
Dec 19 20:16:47.904 INFO [stderr]  --> src/value.rs:8:3
Dec 19 20:16:47.904 INFO [stderr]   |
Dec 19 20:16:47.904 INFO [stderr] 8 |   Object(HashMap<String, Value>),
Dec 19 20:16:47.904 INFO [stderr]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:16:47.904 INFO [stderr] 
Dec 19 20:16:47.904 INFO [stderr] warning: variant is never constructed: `String`
Dec 19 20:16:47.904 INFO [stderr]  --> src/value.rs:9:3
Dec 19 20:16:47.904 INFO [stderr]   |
Dec 19 20:16:47.904 INFO [stderr] 9 |   String(String),
Dec 19 20:16:47.904 INFO [stderr]   |   ^^^^^^^^^^^^^^
Dec 19 20:16:47.904 INFO [stderr] 
Dec 19 20:16:47.904 INFO [stderr] warning: variant is never constructed: `Array`
Dec 19 20:16:47.904 INFO [stderr]   --> src/value.rs:10:3
Dec 19 20:16:47.904 INFO [stderr]    |
Dec 19 20:16:47.904 INFO [stderr] 10 |   Array(Vec<Value>),
Dec 19 20:16:47.904 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^
Dec 19 20:16:47.904 INFO [stderr] 
Dec 19 20:16:47.904 INFO [stderr] warning: variant is never constructed: `Number`
Dec 19 20:16:47.904 INFO [stderr]   --> src/value.rs:11:3
Dec 19 20:16:47.904 INFO [stderr]    |
Dec 19 20:16:47.904 INFO [stderr] 11 |   Number(u32),
Dec 19 20:16:47.904 INFO [stderr]    |   ^^^^^^^^^^^
Dec 19 20:16:47.904 INFO [stderr] 
Dec 19 20:16:47.904 INFO [stderr] warning: variant is never constructed: `Boolean`
Dec 19 20:16:47.904 INFO [stderr]   --> src/value.rs:12:3
Dec 19 20:16:47.904 INFO [stderr]    |
Dec 19 20:16:47.904 INFO [stderr] 12 |   Boolean(bool),
Dec 19 20:16:47.904 INFO [stderr]    |   ^^^^^^^^^^^^^
Dec 19 20:16:47.904 INFO [stderr] 
Dec 19 20:16:47.904 INFO [stderr] warning: method is never used: `create_variables`
Dec 19 20:16:47.904 INFO [stderr]   --> src/state.rs:12:3
Dec 19 20:16:47.904 INFO [stderr]    |
Dec 19 20:16:47.904 INFO [stderr] 12 |   fn create_variables(&self, names: Vec<String>) -> (State, Vec<Variable>) {
Dec 19 20:16:47.904 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:16:47.904 INFO [stderr] 
Dec 19 20:16:47.904 INFO [stderr] warning: method is never used: `assign_values`
Dec 19 20:16:47.904 INFO [stderr]   --> src/state.rs:20:3
Dec 19 20:16:47.904 INFO [stderr]    |
Dec 19 20:16:47.904 INFO [stderr] 20 |   fn assign_values(&self, new_vals: HashMap<String, Value>) -> State {
Dec 19 20:16:47.904 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:16:47.904 INFO [stderr] 
Dec 19 20:16:47.904 INFO [stderr] warning: method is never used: `value_of`
Dec 19 20:16:47.904 INFO [stderr]   --> src/state.rs:26:3
Dec 19 20:16:47.904 INFO [stderr]    |
Dec 19 20:16:47.904 INFO [stderr] 26 |   fn value_of(&self, variable: &Variable) -> Value {
Dec 19 20:16:47.904 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:16:47.904 INFO [stderr] 
Dec 19 20:16:47.904 INFO [stderr] warning: method is never used: `unify`
Dec 19 20:16:47.904 INFO [stderr]   --> src/state.rs:37:3
Dec 19 20:16:47.904 INFO [stderr]    |
Dec 19 20:16:47.904 INFO [stderr] 37 |   fn unify(&self, a: &Variable, b: &Variable) -> Option<State> {
Dec 19 20:16:47.904 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:16:47.904 INFO [stderr] 
Dec 19 20:16:47.920 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.27s
Dec 19 20:16:48.341 INFO running `"docker" "inspect" "a82550e3f6f67e9ed84b34731b7f13cd34c8ab6b3734d8804efda50baaa09371"`
Dec 19 20:16:48.467 INFO running `"docker" "rm" "-f" "a82550e3f6f67e9ed84b34731b7f13cd34c8ab6b3734d8804efda50baaa09371"`
Dec 19 20:16:48.554 INFO [stdout] a82550e3f6f67e9ed84b34731b7f13cd34c8ab6b3734d8804efda50baaa09371