[INFO] fetching crate farc3 0.2.0...
[INFO] testing farc3-0.2.0 against try#b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b for pr-145330-1
[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 b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f09cca6ca6da82e3c507f147fa2bde95c996e6c0245ed13017347551ff5b3df1
[INFO] running `Command { std: "docker" "start" "-a" "f09cca6ca6da82e3c507f147fa2bde95c996e6c0245ed13017347551ff5b3df1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f09cca6ca6da82e3c507f147fa2bde95c996e6c0245ed13017347551ff5b3df1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f09cca6ca6da82e3c507f147fa2bde95c996e6c0245ed13017347551ff5b3df1", kill_on_drop: false }`
[INFO] [stdout] f09cca6ca6da82e3c507f147fa2bde95c996e6c0245ed13017347551ff5b3df1
[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=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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 582a86f0639932c6390684b489dfa2c857cfa921170e9e7213651568df40b0c9
[INFO] running `Command { std: "docker" "start" "-a" "582a86f0639932c6390684b489dfa2c857cfa921170e9e7213651568df40b0c9", 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" "582a86f0639932c6390684b489dfa2c857cfa921170e9e7213651568df40b0c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "582a86f0639932c6390684b489dfa2c857cfa921170e9e7213651568df40b0c9", kill_on_drop: false }`
[INFO] [stdout] 582a86f0639932c6390684b489dfa2c857cfa921170e9e7213651568df40b0c9
[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=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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 74b29dfa40a0e0bb6fc284a5dcea7180e9536968de00bba1295cf4888f4957f2
[INFO] running `Command { std: "docker" "start" "-a" "74b29dfa40a0e0bb6fc284a5dcea7180e9536968de00bba1295cf4888f4957f2", kill_on_drop: false }`
[INFO] [stderr]    Compiling farc3 v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.12s
[INFO] running `Command { std: "docker" "inspect" "74b29dfa40a0e0bb6fc284a5dcea7180e9536968de00bba1295cf4888f4957f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74b29dfa40a0e0bb6fc284a5dcea7180e9536968de00bba1295cf4888f4957f2", kill_on_drop: false }`
[INFO] [stdout] 74b29dfa40a0e0bb6fc284a5dcea7180e9536968de00bba1295cf4888f4957f2
[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=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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a98cb99ae6841f1f1a45604c71c9c80b901a230b5a242dd3260fb805bb153cb0
[INFO] running `Command { std: "docker" "start" "-a" "a98cb99ae6841f1f1a45604c71c9c80b901a230b5a242dd3260fb805bb153cb0", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/farc3-a1fe64344fb50112)
[INFO] [stdout] 
[INFO] [stdout] running 33 tests
[INFO] [stdout] test systems::generic::test::assignments::iteration ... ok
[INFO] [stdout] test systems::generic::test::assignments::intersection ... ok
[INFO] [stdout] test systems::generic::test::assignments::union ... ok
[INFO] [stdout] test systems::generic::test::constraints::construction ... ok
[INFO] [stdout] test systems::generic::test::constraints::decompositions ... ok
[INFO] [stdout] test systems::generic::test::constraints::pop_solution ... ok
[INFO] [stdout] test systems::generic::test::constraints::variables ... ok
[INFO] [stdout] test systems::generic::test::solver::unresolvable ... ok
[INFO] [stdout] test systems::mines::test::assignments::union ... ok
[INFO] [stdout] test systems::mines::test::constraints::decompositions ... ok
[INFO] [stdout] test systems::mines::test::constraints::reduce_subset ... ok
[INFO] [stdout] test systems::generic::test::constraints::conflicts ... ok
[INFO] [stdout] test systems::mines::test::assignments::intersection ... ok
[INFO] [stdout] test systems::mines::test::constraints::pop_solution ... ok
[INFO] [stdout] test systems::generic::test::constraints::size ... ok
[INFO] [stdout] test systems::generic::test::constraints::reduce ... ok
[INFO] [stdout] test systems::mines::test::constraints::construction ... ok
[INFO] [stdout] test systems::mines::test::constraints::reduce_decided ... ok
[INFO] [stdout] test systems::mines::test::assignments::construction ... ok
[INFO] [stdout] test systems::mines::test::assignments::iteration ... ok
[INFO] [stdout] test systems::generic::test::solver::full_minimise ... ok
[INFO] [stdout] test systems::generic::test::solver::trivial ... ok
[INFO] [stdout] test systems::mines::test::constraints::variables ... ok
[INFO] [stdout] test systems::generic::test::constraints::pop_solution_all ... ok
[INFO] [stdout] test systems::generic::test::solver::partial_minimise ... ok
[INFO] [stdout] test systems::mines::test::solver::full_minimise ... ok
[INFO] [stdout] test systems::mines::test::constraints::size ... ok
[INFO] [stdout] test systems::mines::test::solver::solutions ... ok
[INFO] [stdout] test systems::mines::test::solver::partial_minimise ... ok
[INFO] [stdout] test systems::mines::test::solver::trivial ... ok
[INFO] [stdout] test systems::mines::test::solver::unresolvable ... ok
[INFO] [stdout] test systems::generic::test::constraints::inconsistent - should panic ... ok
[INFO] [stdout] test systems::generic::test::assignments::construction ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 33 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.09s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests farc3
[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/errors.rs - systems::mines::errors::MineConflicts (line 7) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 39) ... FAILED
[INFO] [stdout] test src/systems/mines/constraint.rs - systems::mines::constraint::MineConstraint<V>::new (line 32) ... FAILED
[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/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] ---- 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] 
[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 0.26s
[INFO] [stdout] 
[INFO] [stdout] all doctests ran in 0.40s; merged doctests compilation took 0.14s
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "a98cb99ae6841f1f1a45604c71c9c80b901a230b5a242dd3260fb805bb153cb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a98cb99ae6841f1f1a45604c71c9c80b901a230b5a242dd3260fb805bb153cb0", kill_on_drop: false }`
[INFO] [stdout] a98cb99ae6841f1f1a45604c71c9c80b901a230b5a242dd3260fb805bb153cb0