[INFO] cloning repository https://github.com/philzook58/ggkb
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/philzook58/ggkb" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphilzook58%2Fggkb", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphilzook58%2Fggkb'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9723db320be61e0d73d3a57fd9a72854d4e89d1e
[INFO] checking philzook58/ggkb against try#93086cfebfccb79083c59d0d3b2052944bba643c for pr-146440-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphilzook58%2Fggkb" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/philzook58/ggkb
[INFO] finished tweaking git repo https://github.com/philzook58/ggkb
[INFO] tweaked toml for git repo https://github.com/philzook58/ggkb written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/philzook58/ggkb 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/philzook58/ggkb 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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 152cb76aadca98f43d4a1b1f0864c0cdd7be90da613fe55be73189c67b4f37d0
[INFO] running `Command { std: "docker" "start" "-a" "152cb76aadca98f43d4a1b1f0864c0cdd7be90da613fe55be73189c67b4f37d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "152cb76aadca98f43d4a1b1f0864c0cdd7be90da613fe55be73189c67b4f37d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "152cb76aadca98f43d4a1b1f0864c0cdd7be90da613fe55be73189c67b4f37d0", kill_on_drop: false }`
[INFO] [stdout] 152cb76aadca98f43d4a1b1f0864c0cdd7be90da613fe55be73189c67b4f37d0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 68c36d3c803372a86a38479909ce032ebf9eecee25023e1a1fb9e3e8a1ce5ba5
[INFO] running `Command { std: "docker" "start" "-a" "68c36d3c803372a86a38479909ce032ebf9eecee25023e1a1fb9e3e8a1ce5ba5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]     Checking clap_builder v4.5.53
[INFO] [stderr]     Checking nibble_vec v0.1.0
[INFO] [stderr]     Checking endian-type v0.2.0
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking radix_trie v0.3.0
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]    Compiling syn v2.0.111
[INFO] [stderr]    Compiling clap_derive v4.5.49
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]     Checking clap v4.5.53
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking ggkb v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `path::Iter`
[INFO] [stdout]  --> src/lib.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     path::Iter,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `num_bigint::BigInt`
[INFO] [stdout]  --> src/multiset.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use num_bigint::BigInt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Deserialize` and `Serialize`
[INFO] [stdout]  --> src/multiset.rs:5:13
[INFO] [stdout]   |
[INFO] [stdout] 5 | use serde::{Deserialize, Serialize};
[INFO] [stdout]   |             ^^^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/multiset.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `VecDeque`
[INFO] [stdout]  --> src/term.rs:1:42
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{HashMap, HashSet, VecDeque};
[INFO] [stdout]   |                                          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> src/term.rs:152:9
[INFO] [stdout]     |
[INFO] [stdout] 152 |     use super::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `path::Iter`
[INFO] [stdout]  --> src/lib.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     path::Iter,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `num_bigint::BigInt`
[INFO] [stdout]  --> src/multiset.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use num_bigint::BigInt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Deserialize` and `Serialize`
[INFO] [stdout]  --> src/multiset.rs:5:13
[INFO] [stdout]   |
[INFO] [stdout] 5 | use serde::{Deserialize, Serialize};
[INFO] [stdout]   |             ^^^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/multiset.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `VecDeque`
[INFO] [stdout]  --> src/term.rs:1:42
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{HashMap, HashSet, VecDeque};
[INFO] [stdout]   |                                          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MultiSet` is never constructed
[INFO] [stdout]   --> src/multiset.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct MultiSet<T>
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `len`, `divrem_mut`, and `replace` are never used
[INFO] [stdout]   --> src/multiset.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | impl<T: Eq + Hash> MultiSet<T> {
[INFO] [stdout]    | ------------------------------ methods in this implementation
[INFO] [stdout] 23 |     fn len(&self) -> BigUint {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     fn divrem_mut(&mut self, other: &MultiSet<T>) -> Option<BigUint>
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 55 |     fn replace(&mut self, lhs: &MultiSet<T>, rhs: &MultiSet<T>) -> bool
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `MSRW` is never used
[INFO] [stdout]   --> src/multiset.rs:84:6
[INFO] [stdout]    |
[INFO] [stdout] 84 | type MSRW<T> = BTreeMap<T, Vec<(MultiSet<T>, MultiSet<T>)>>;
[INFO] [stdout]    |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `Poly` is never constructed
[INFO] [stdout]  --> src/poly.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct Poly<T: Eq + Hash> {
[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] warning: enum `Term` is never used
[INFO] [stdout]  --> src/term.rs:4:6
[INFO] [stdout]   |
[INFO] [stdout] 4 | enum Term {
[INFO] [stdout]   |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RecExpr` is never constructed
[INFO] [stdout]  --> src/term.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct RecExpr {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/term.rs:17:12
[INFO] [stdout]     |
[INFO] [stdout]  16 | impl RecExpr {
[INFO] [stdout]     | ------------ associated items in this implementation
[INFO] [stdout]  17 |     pub fn new() -> RecExpr {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  26 |     pub fn app(&mut self, f: usize, x: usize) -> usize {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  37 |     pub fn lit(&mut self, n: usize) -> usize {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  48 |     fn kbo(&self, a: usize, b: usize) -> std::cmp::Ordering {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout]  70 |     fn subterms(&self, node: usize) -> HashSet<usize> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  91 |     fn substitute_one(&mut self, node: usize, lhs: usize, rhs: usize) -> usize {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 110 |     fn substitute(&mut self, node: usize, rw: &HashMap<usize, usize>) -> usize {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `UF` is never constructed
[INFO] [stdout]  --> src/unionfind.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct UF {
[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] [stderr] error: could not compile `ggkb` (lib) due to 2 previous errors; 12 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: struct `MultiSet` is never constructed
[INFO] [stdout]   --> src/multiset.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct MultiSet<T>
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `len`, `divrem_mut`, and `replace` are never used
[INFO] [stdout]   --> src/multiset.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | impl<T: Eq + Hash> MultiSet<T> {
[INFO] [stdout]    | ------------------------------ methods in this implementation
[INFO] [stdout] 23 |     fn len(&self) -> BigUint {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     fn divrem_mut(&mut self, other: &MultiSet<T>) -> Option<BigUint>
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 55 |     fn replace(&mut self, lhs: &MultiSet<T>, rhs: &MultiSet<T>) -> bool
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `MSRW` is never used
[INFO] [stdout]   --> src/multiset.rs:84:6
[INFO] [stdout]    |
[INFO] [stdout] 84 | type MSRW<T> = BTreeMap<T, Vec<(MultiSet<T>, MultiSet<T>)>>;
[INFO] [stdout]    |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `Poly` is never constructed
[INFO] [stdout]  --> src/poly.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct Poly<T: Eq + Hash> {
[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] warning: methods `subterms` and `substitute` are never used
[INFO] [stdout]    --> src/term.rs:70:8
[INFO] [stdout]     |
[INFO] [stdout]  16 | impl RecExpr {
[INFO] [stdout]     | ------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  70 |     fn subterms(&self, node: usize) -> HashSet<usize> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 110 |     fn substitute(&mut self, node: usize, rw: &HashMap<usize, usize>) -> usize {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ggkb` (lib test) due to 1 previous error; 9 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "68c36d3c803372a86a38479909ce032ebf9eecee25023e1a1fb9e3e8a1ce5ba5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68c36d3c803372a86a38479909ce032ebf9eecee25023e1a1fb9e3e8a1ce5ba5", kill_on_drop: false }`
[INFO] [stdout] 68c36d3c803372a86a38479909ce032ebf9eecee25023e1a1fb9e3e8a1ce5ba5