[INFO] cloning repository https://github.com/purefunctor/tabled-typeclass-resolution
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/purefunctor/tabled-typeclass-resolution" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpurefunctor%2Ftabled-typeclass-resolution", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpurefunctor%2Ftabled-typeclass-resolution'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5dd1bf2f681042ebe0753fe4543fe87e64eda3b6
[INFO] checking purefunctor/tabled-typeclass-resolution against try#93086cfebfccb79083c59d0d3b2052944bba643c for pr-146440-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpurefunctor%2Ftabled-typeclass-resolution" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/purefunctor/tabled-typeclass-resolution
[INFO] finished tweaking git repo https://github.com/purefunctor/tabled-typeclass-resolution
[INFO] tweaked toml for git repo https://github.com/purefunctor/tabled-typeclass-resolution written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/purefunctor/tabled-typeclass-resolution on toolchain 93086cfebfccb79083c59d0d3b2052944bba643c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/purefunctor/tabled-typeclass-resolution already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e7cd6f9c1bdcf87af43a569f78014f879e4da07b77be2269b64a632aba4c2a92
[INFO] running `Command { std: "docker" "start" "-a" "e7cd6f9c1bdcf87af43a569f78014f879e4da07b77be2269b64a632aba4c2a92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e7cd6f9c1bdcf87af43a569f78014f879e4da07b77be2269b64a632aba4c2a92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7cd6f9c1bdcf87af43a569f78014f879e4da07b77be2269b64a632aba4c2a92", kill_on_drop: false }`
[INFO] [stdout] e7cd6f9c1bdcf87af43a569f78014f879e4da07b77be2269b64a632aba4c2a92
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 65ce5b564e72a9b2158114baff0a412593844a16b9a40b9cf8cba087a6c47b8c
[INFO] running `Command { std: "docker" "start" "-a" "65ce5b564e72a9b2158114baff0a412593844a16b9a40b9cf8cba087a6c47b8c", kill_on_drop: false }`
[INFO] [stderr]     Checking archery v0.5.0
[INFO] [stderr]     Checking smol_str v0.2.0
[INFO] [stderr]     Checking rpds v0.13.0
[INFO] [stderr]     Checking tabled-typeclass-resolution v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `subgoal`
[INFO] [stdout]   --> src/lib.rs:99:30
[INFO] [stdout]    |
[INFO] [stdout] 99 |     fn try_answer(&mut self, subgoal: &Assertion, answer: &Assertion) -> bool {
[INFO] [stdout]    |                              ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_subgoal`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `answer`
[INFO] [stdout]   --> src/lib.rs:99:51
[INFO] [stdout]    |
[INFO] [stdout] 99 |     fn try_answer(&mut self, subgoal: &Assertion, answer: &Assertion) -> bool {
[INFO] [stdout]    |                                                   ^^^^^^ help: if this is intentional, prefix it with an underscore: `_answer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `goal`
[INFO] [stdout]    --> src/lib.rs:103:31
[INFO] [stdout]     |
[INFO] [stdout] 103 |     fn try_resolve(&mut self, goal: &Assertion, instance: &Instance) -> Option<List<Assertion>> {
[INFO] [stdout]     |                               ^^^^ help: if this is intentional, prefix it with an underscore: `_goal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `instance`
[INFO] [stdout]    --> src/lib.rs:103:49
[INFO] [stdout]     |
[INFO] [stdout] 103 |     fn try_resolve(&mut self, goal: &Assertion, instance: &Instance) -> Option<List<Assertion>> {
[INFO] [stdout]     |                                                 ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_instance`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `Instance` is never constructed
[INFO] [stdout]   --> src/lib.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct Instance {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]    = note: `#[deny(unused_unconstructable_pub_structs)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `GeneratorNode` is never constructed
[INFO] [stdout]   --> src/lib.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub struct GeneratorNode {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `TableEntry` is never constructed
[INFO] [stdout]   --> src/lib.rs:71:12
[INFO] [stdout]    |
[INFO] [stdout] 71 | pub struct TableEntry {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `Synth` is never constructed
[INFO] [stdout]   --> src/lib.rs:77:12
[INFO] [stdout]    |
[INFO] [stdout] 77 | pub struct Synth {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `assertion` and `dependencies` are never read
[INFO] [stdout]   --> src/lib.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct Instance {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 24 |     assertion: Assertion,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 25 |     dependencies: List<Assertion>,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Instance` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tabled-typeclass-resolution` (lib test) due to 4 previous errors; 5 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused variable: `subgoal`
[INFO] [stdout]   --> src/lib.rs:99:30
[INFO] [stdout]    |
[INFO] [stdout] 99 |     fn try_answer(&mut self, subgoal: &Assertion, answer: &Assertion) -> bool {
[INFO] [stdout]    |                              ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_subgoal`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `answer`
[INFO] [stdout]   --> src/lib.rs:99:51
[INFO] [stdout]    |
[INFO] [stdout] 99 |     fn try_answer(&mut self, subgoal: &Assertion, answer: &Assertion) -> bool {
[INFO] [stdout]    |                                                   ^^^^^^ help: if this is intentional, prefix it with an underscore: `_answer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `goal`
[INFO] [stdout]    --> src/lib.rs:103:31
[INFO] [stdout]     |
[INFO] [stdout] 103 |     fn try_resolve(&mut self, goal: &Assertion, instance: &Instance) -> Option<List<Assertion>> {
[INFO] [stdout]     |                               ^^^^ help: if this is intentional, prefix it with an underscore: `_goal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `instance`
[INFO] [stdout]    --> src/lib.rs:103:49
[INFO] [stdout]     |
[INFO] [stdout] 103 |     fn try_resolve(&mut self, goal: &Assertion, instance: &Instance) -> Option<List<Assertion>> {
[INFO] [stdout]     |                                                 ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_instance`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `Instance` is never constructed
[INFO] [stdout]   --> src/lib.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct Instance {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]    = note: `#[deny(unused_unconstructable_pub_structs)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `GeneratorNode` is never constructed
[INFO] [stdout]   --> src/lib.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub struct GeneratorNode {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `TableEntry` is never constructed
[INFO] [stdout]   --> src/lib.rs:71:12
[INFO] [stdout]    |
[INFO] [stdout] 71 | pub struct TableEntry {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `Synth` is never constructed
[INFO] [stdout]   --> src/lib.rs:77:12
[INFO] [stdout]    |
[INFO] [stdout] 77 | pub struct Synth {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `assertion` and `dependencies` are never read
[INFO] [stdout]   --> src/lib.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct Instance {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 24 |     assertion: Assertion,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 25 |     dependencies: List<Assertion>,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Instance` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tabled-typeclass-resolution` (lib) due to 4 previous errors; 5 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "65ce5b564e72a9b2158114baff0a412593844a16b9a40b9cf8cba087a6c47b8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65ce5b564e72a9b2158114baff0a412593844a16b9a40b9cf8cba087a6c47b8c", kill_on_drop: false }`
[INFO] [stdout] 65ce5b564e72a9b2158114baff0a412593844a16b9a40b9cf8cba087a6c47b8c
