[INFO] updating cached repository ashleygwilliams/relational_node-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ashleygwilliams/relational_node-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ashleygwilliams/relational_node-rust" "work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/ashleygwilliams/relational_node-rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/ashleygwilliams/relational_node-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ashleygwilliams/relational_node-rust" "work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/ashleygwilliams/relational_node-rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/ashleygwilliams/relational_node-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d87ba77c54b3f92b2372fd07daba48055acd5477
[INFO] sha for GitHub repo ashleygwilliams/relational_node-rust: d87ba77c54b3f92b2372fd07daba48055acd5477
[INFO] validating manifest of ashleygwilliams/relational_node-rust on toolchain master#a850a426491e14186af2250549bf41256b5938d2
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ashleygwilliams/relational_node-rust on toolchain try#06a150c7d11500b41499224f165e9de1de096768
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ashleygwilliams/relational_node-rust
[INFO] finished frobbing ashleygwilliams/relational_node-rust
[INFO] frobbed toml for ashleygwilliams/relational_node-rust written to work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/ashleygwilliams/relational_node-rust/Cargo.toml
[INFO] started frobbing ashleygwilliams/relational_node-rust
[INFO] finished frobbing ashleygwilliams/relational_node-rust
[INFO] frobbed toml for ashleygwilliams/relational_node-rust written to work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/ashleygwilliams/relational_node-rust/Cargo.toml
[INFO] crate ashleygwilliams/relational_node-rust already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking ashleygwilliams/relational_node-rust against try#06a150c7d11500b41499224f165e9de1de096768 for pr-60162
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60162/worker-2/try#06a150c7d11500b41499224f165e9de1de096768:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/ashleygwilliams/relational_node-rust:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+06a150c7d11500b41499224f165e9de1de096768-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 8ea3faf48942fd018dcef03fd4b9d0762f5eaf80eb98cc9d4c4fabd01dafdf37
[INFO] running `"docker" "start" "-a" "8ea3faf48942fd018dcef03fd4b9d0762f5eaf80eb98cc9d4c4fabd01dafdf37"`
[INFO] [stderr]     Checking relation_node v0.1.0 (/opt/crater/workdir)
[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: method is never used: `create_variables`
[INFO] [stderr]   --> src/state.rs:12:3
[INFO] [stderr]    |
[INFO] [stderr] 12 |   fn create_variables(&self, names: Vec<String>) -> (State, Vec<Variable>) {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `assign_values`
[INFO] [stderr]   --> src/state.rs:20:3
[INFO] [stderr]    |
[INFO] [stderr] 20 |   fn assign_values(&self, new_vals: HashMap<String, Value>) -> State {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `value_of`
[INFO] [stderr]   --> src/state.rs:26:3
[INFO] [stderr]    |
[INFO] [stderr] 26 |   fn value_of(&self, variable: &Variable) -> Value {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `unify`
[INFO] [stderr]   --> src/state.rs:37:3
[INFO] [stderr]    |
[INFO] [stderr] 37 |   fn unify(&self, a: &Variable, b: &Variable) -> Option<State> {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[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: method is never used: `create_variables`
[INFO] [stderr]   --> src/state.rs:12:3
[INFO] [stderr]    |
[INFO] [stderr] 12 |   fn create_variables(&self, names: Vec<String>) -> (State, Vec<Variable>) {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `assign_values`
[INFO] [stderr]   --> src/state.rs:20:3
[INFO] [stderr]    |
[INFO] [stderr] 20 |   fn assign_values(&self, new_vals: HashMap<String, Value>) -> State {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `value_of`
[INFO] [stderr]   --> src/state.rs:26:3
[INFO] [stderr]    |
[INFO] [stderr] 26 |   fn value_of(&self, variable: &Variable) -> Value {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `unify`
[INFO] [stderr]   --> src/state.rs:37:3
[INFO] [stderr]    |
[INFO] [stderr] 37 |   fn unify(&self, a: &Variable, b: &Variable) -> Option<State> {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `"docker" "inspect" "8ea3faf48942fd018dcef03fd4b9d0762f5eaf80eb98cc9d4c4fabd01dafdf37"`
[INFO] running `"docker" "rm" "-f" "8ea3faf48942fd018dcef03fd4b9d0762f5eaf80eb98cc9d4c4fabd01dafdf37"`
[INFO] [stdout] 8ea3faf48942fd018dcef03fd4b9d0762f5eaf80eb98cc9d4c4fabd01dafdf37