[INFO] fetching crate farc3 0.2.0...
[INFO] testing farc3-0.2.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate farc3 0.2.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate farc3 0.2.0
[INFO] finished tweaking crates.io crate farc3 0.2.0
[INFO] tweaked toml for crates.io crate farc3 0.2.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate farc3 0.2.0 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate farc3 0.2.0 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" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 841b10c137a89c6b1604e12ea6952feacf284d2ad11ca2b4ea36b493264933ed
[INFO] running `Command { std: "docker" "start" "-a" "841b10c137a89c6b1604e12ea6952feacf284d2ad11ca2b4ea36b493264933ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "841b10c137a89c6b1604e12ea6952feacf284d2ad11ca2b4ea36b493264933ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "841b10c137a89c6b1604e12ea6952feacf284d2ad11ca2b4ea36b493264933ed", kill_on_drop: false }`
[INFO] [stdout] 841b10c137a89c6b1604e12ea6952feacf284d2ad11ca2b4ea36b493264933ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c0f42bfa07424756fcd49895dc74ed7ca25934df804690d097e058e505aaf046
[INFO] running `Command { std: "docker" "start" "-a" "c0f42bfa07424756fcd49895dc74ed7ca25934df804690d097e058e505aaf046", kill_on_drop: false }`
[INFO] [stderr]    Compiling farc3 v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "c0f42bfa07424756fcd49895dc74ed7ca25934df804690d097e058e505aaf046", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0f42bfa07424756fcd49895dc74ed7ca25934df804690d097e058e505aaf046", kill_on_drop: false }`
[INFO] [stdout] c0f42bfa07424756fcd49895dc74ed7ca25934df804690d097e058e505aaf046
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2600df7345b2f466e28347339c52026726f3af69ccdb285fbe684baeed9039c1
[INFO] running `Command { std: "docker" "start" "-a" "2600df7345b2f466e28347339c52026726f3af69ccdb285fbe684baeed9039c1", kill_on_drop: false }`
[INFO] [stderr]    Compiling farc3 v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.98s
[INFO] running `Command { std: "docker" "inspect" "2600df7345b2f466e28347339c52026726f3af69ccdb285fbe684baeed9039c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2600df7345b2f466e28347339c52026726f3af69ccdb285fbe684baeed9039c1", kill_on_drop: false }`
[INFO] [stdout] 2600df7345b2f466e28347339c52026726f3af69ccdb285fbe684baeed9039c1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] bf63c13325af03e0173458790b4950288de25e3f85de2d8c884c379e7128db77
[INFO] running `Command { std: "docker" "start" "-a" "bf63c13325af03e0173458790b4950288de25e3f85de2d8c884c379e7128db77", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/farc3-1ab45eaed0257899)
[INFO] [stdout] 
[INFO] [stdout] running 33 tests
[INFO] [stdout] test systems::generic::test::constraints::conflicts ... ok
[INFO] [stdout] test systems::generic::test::assignments::construction ... ok
[INFO] [stdout] test systems::generic::test::constraints::decompositions ... ok
[INFO] [stdout] test systems::generic::test::assignments::union ... ok
[INFO] [stdout] test systems::generic::test::assignments::intersection ... ok
[INFO] [stdout] test systems::generic::test::constraints::construction ... ok
[INFO] [stdout] test systems::generic::test::constraints::pop_solution ... ok
[INFO] [stdout] test systems::generic::test::constraints::pop_solution_all ... ok
[INFO] [stdout] test systems::generic::test::constraints::size ... ok
[INFO] [stdout] test systems::generic::test::constraints::variables ... ok
[INFO] [stdout] test systems::generic::test::solver::partial_minimise ... ok
[INFO] [stdout] test systems::generic::test::constraints::reduce ... ok
[INFO] [stdout] test systems::generic::test::solver::full_minimise ... ok
[INFO] [stdout] test systems::mines::test::assignments::construction ... ok
[INFO] [stdout] test systems::generic::test::solver::unresolvable ... ok
[INFO] [stdout] test systems::mines::test::constraints::construction ... ok
[INFO] [stdout] test systems::mines::test::assignments::intersection ... ok
[INFO] [stdout] test systems::mines::test::assignments::iteration ... ok
[INFO] [stdout] test systems::mines::test::constraints::pop_solution ... ok
[INFO] [stdout] test systems::mines::test::constraints::reduce_decided ... ok
[INFO] [stdout] test systems::mines::test::constraints::decompositions ... ok
[INFO] [stdout] test systems::mines::test::assignments::union ... ok
[INFO] [stdout] test systems::mines::test::constraints::variables ... ok
[INFO] [stdout] test systems::mines::test::constraints::reduce_subset ... ok
[INFO] [stdout] test systems::mines::test::constraints::size ... ok
[INFO] [stdout] test systems::mines::test::solver::partial_minimise ... ok
[INFO] [stdout] test systems::mines::test::solver::full_minimise ... ok
[INFO] [stdout] test systems::mines::test::solver::solutions ... ok
[INFO] [stdout] test systems::mines::test::solver::unresolvable ... ok
[INFO] [stdout] test systems::mines::test::solver::trivial ... ok
[INFO] [stdout] test systems::generic::test::solver::trivial ... ok
[INFO] [stdout] test systems::generic::test::constraints::inconsistent - should panic ... ok
[INFO] [stderr]    Doc-tests farc3
[INFO] [stdout] test systems::generic::test::assignments::iteration ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 33 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/systems/generic/assignment.rs - systems::generic::assignment::DiscreteAssignment (line 11) ... FAILED
[INFO] [stdout] test src/systems/mines/constraint.rs - systems::mines::constraint::MineConstraint<V>::new (line 32) ... FAILED
[INFO] [stdout] test src/systems/mines/errors.rs - systems::mines::errors::MineConflicts (line 7) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 39) ... FAILED
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/systems/generic/assignment.rs - systems::generic::assignment::DiscreteAssignment (line 11) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `farc3_csp`
[INFO] [stdout]  --> src/systems/generic/assignment.rs:13:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use farc3_csp::prelude::Assignment;
[INFO] [stdout]   |     ^^^^^^^^^ use of unresolved module or unlinked crate `farc3_csp`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `farc3_csp`, use `cargo add farc3_csp` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `farc3_csp`
[INFO] [stdout]  --> src/systems/generic/assignment.rs:14:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use farc3_csp::systems::generic::assignment::DiscreteAssignment;
[INFO] [stdout]   |     ^^^^^^^^^ use of unresolved module or unlinked crate `farc3_csp`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `farc3_csp`, use `cargo add farc3_csp` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/systems/mines/constraint.rs - systems::mines::constraint::MineConstraint<V>::new (line 32) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `farc3_csp`
[INFO] [stdout]  --> src/systems/mines/constraint.rs:34:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use farc3_csp::prelude::Constraint;
[INFO] [stdout]   |     ^^^^^^^^^ use of unresolved module or unlinked crate `farc3_csp`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `farc3_csp`, use `cargo add farc3_csp` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `farc3_csp`
[INFO] [stdout]  --> src/systems/mines/constraint.rs:35:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use farc3_csp::systems::mines::constraint::MineConstraint;
[INFO] [stdout]   |     ^^^^^^^^^ use of unresolved module or unlinked crate `farc3_csp`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `farc3_csp`, use `cargo add farc3_csp` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/systems/mines/errors.rs - systems::mines::errors::MineConflicts (line 7) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `farc3_csp`
[INFO] [stdout]  --> src/systems/mines/errors.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use farc3_csp::constraint::Constraint;
[INFO] [stdout]   |     ^^^^^^^^^ use of unresolved module or unlinked crate `farc3_csp`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `farc3_csp`, use `cargo add farc3_csp` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `farc3_csp`
[INFO] [stdout]  --> src/systems/mines/errors.rs:10:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use farc3_csp::systems::mines::{
[INFO] [stdout]   |     ^^^^^^^^^ use of unresolved module or unlinked crate `farc3_csp`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `farc3_csp`, use `cargo add farc3_csp` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - (line 39) stdout ----
[INFO] [stdout] error[E0412]: cannot find type `HashSet` in this scope
[INFO] [stdout]   --> src/lib.rs:56:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | let sltns: HashSet<_> = sys.solve().collect();
[INFO] [stdout]    |            ^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout]  2 + use std::collections::HashSet;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `HashSet`
[INFO] [stdout]   --> src/lib.rs:62:3
[INFO] [stdout]    |
[INFO] [stdout] 26 |   HashSet::from([
[INFO] [stdout]    |   ^^^^^^^ use of undeclared type `HashSet`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout]  2 + use std::collections::HashSet;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `MineAssignment`
[INFO] [stdout]   --> src/lib.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     MineAssignment::new(/*safe*/ [1], /*mines*/ [2, 0]),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^ use of undeclared type `MineAssignment`
[INFO] [stdout]    |
[INFO] [stdout] help: a trait with a similar name exists
[INFO] [stdout]    |
[INFO] [stdout] 27 -     MineAssignment::new(/*safe*/ [1], /*mines*/ [2, 0]),
[INFO] [stdout] 27 +     Assignment::new(/*safe*/ [1], /*mines*/ [2, 0]),
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout]  2 + use farc3::systems::mines::assignment::MineAssignment;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `MineAssignment`
[INFO] [stdout]   --> src/lib.rs:64:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     MineAssignment::new(/*safe*/ [2], /*mines*/ [1, 0]),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^ use of undeclared type `MineAssignment`
[INFO] [stdout]    |
[INFO] [stdout] help: a trait with a similar name exists
[INFO] [stdout]    |
[INFO] [stdout] 28 -     MineAssignment::new(/*safe*/ [2], /*mines*/ [1, 0]),
[INFO] [stdout] 28 +     Assignment::new(/*safe*/ [2], /*mines*/ [1, 0]),
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout]  2 + use farc3::systems::mines::assignment::MineAssignment;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0412, E0433.
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 39)
[INFO] [stdout]     src/systems/generic/assignment.rs - systems::generic::assignment::DiscreteAssignment (line 11)
[INFO] [stdout]     src/systems/mines/constraint.rs - systems::mines::constraint::MineConstraint<V>::new (line 32)
[INFO] [stdout]     src/systems/mines/errors.rs - systems::mines::errors::MineConflicts (line 7)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 4 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.22s
[INFO] [stdout] 
[INFO] [stdout] all doctests ran in 0.37s; merged doctests compilation took 0.15s
[INFO] running `Command { std: "docker" "inspect" "bf63c13325af03e0173458790b4950288de25e3f85de2d8c884c379e7128db77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf63c13325af03e0173458790b4950288de25e3f85de2d8c884c379e7128db77", kill_on_drop: false }`
[INFO] [stdout] bf63c13325af03e0173458790b4950288de25e3f85de2d8c884c379e7128db77