[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-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/ashleygwilliams/relational_node-rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/ashleygwilliams/relational_node-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ashleygwilliams/relational_node-rust" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/ashleygwilliams/relational_node-rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/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#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ashleygwilliams/relational_node-rust on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-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-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/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-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/ashleygwilliams/relational_node-rust/Cargo.toml
[INFO] crate ashleygwilliams/relational_node-rust has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing ashleygwilliams/relational_node-rust against master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-3/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "build" "--frozen"`
[INFO] [stdout] a71bf748ba0cd4dbfd9db3f6391715dd6521f3c2e08eb8b084d956d5724b824a
[INFO] running `"docker" "start" "-a" "a71bf748ba0cd4dbfd9db3f6391715dd6521f3c2e08eb8b084d956d5724b824a"`
[INFO] [stderr]    Compiling 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]     Finished dev [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `"docker" "inspect" "a71bf748ba0cd4dbfd9db3f6391715dd6521f3c2e08eb8b084d956d5724b824a"`
[INFO] running `"docker" "rm" "-f" "a71bf748ba0cd4dbfd9db3f6391715dd6521f3c2e08eb8b084d956d5724b824a"`
[INFO] [stdout] a71bf748ba0cd4dbfd9db3f6391715dd6521f3c2e08eb8b084d956d5724b824a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-3/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 4f25a5b1107b1d3c506b47502e785544c57a901c104bfbf86ab64b4b84ac5d5d
[INFO] running `"docker" "start" "-a" "4f25a5b1107b1d3c506b47502e785544c57a901c104bfbf86ab64b4b84ac5d5d"`
[INFO] [stderr]    Compiling 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]     Finished dev [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `"docker" "inspect" "4f25a5b1107b1d3c506b47502e785544c57a901c104bfbf86ab64b4b84ac5d5d"`
[INFO] running `"docker" "rm" "-f" "4f25a5b1107b1d3c506b47502e785544c57a901c104bfbf86ab64b4b84ac5d5d"`
[INFO] [stdout] 4f25a5b1107b1d3c506b47502e785544c57a901c104bfbf86ab64b4b84ac5d5d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-3/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen"`
[INFO] [stdout] 7e52b77adb5e55397c07f1e6218aab15e427cea25e0f3dcc5fe47beef4bb6878
[INFO] running `"docker" "start" "-a" "7e52b77adb5e55397c07f1e6218aab15e427cea25e0f3dcc5fe47beef4bb6878"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/relation_node-e882bb8241ca7bd3
[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
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "7e52b77adb5e55397c07f1e6218aab15e427cea25e0f3dcc5fe47beef4bb6878"`
[INFO] running `"docker" "rm" "-f" "7e52b77adb5e55397c07f1e6218aab15e427cea25e0f3dcc5fe47beef4bb6878"`
[INFO] [stdout] 7e52b77adb5e55397c07f1e6218aab15e427cea25e0f3dcc5fe47beef4bb6878