[INFO] cloning repository https://github.com/cm-ayf/wordle-solver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cm-ayf/wordle-solver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcm-ayf%2Fwordle-solver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcm-ayf%2Fwordle-solver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d0e268868962476f53df38607ed298f390dec171
[INFO] testing cm-ayf/wordle-solver against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcm-ayf%2Fwordle-solver" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cm-ayf/wordle-solver on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cm-ayf/wordle-solver
[INFO] finished tweaking git repo https://github.com/cm-ayf/wordle-solver
[INFO] tweaked toml for git repo https://github.com/cm-ayf/wordle-solver written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/cm-ayf/wordle-solver already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ff73ce418c529abd513dfe6a9d45b1ffb044b7b993b3436827c85e1d3495b9b4
[INFO] running `Command { std: "docker" "start" "-a" "ff73ce418c529abd513dfe6a9d45b1ffb044b7b993b3436827c85e1d3495b9b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ff73ce418c529abd513dfe6a9d45b1ffb044b7b993b3436827c85e1d3495b9b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff73ce418c529abd513dfe6a9d45b1ffb044b7b993b3436827c85e1d3495b9b4", kill_on_drop: false }`
[INFO] [stdout] ff73ce418c529abd513dfe6a9d45b1ffb044b7b993b3436827c85e1d3495b9b4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7b4409cab07890cf70a366a9841ead4e88bf4d851ccd3e35d70744c83abcd612
[INFO] running `Command { std: "docker" "start" "-a" "7b4409cab07890cf70a366a9841ead4e88bf4d851ccd3e35d70744c83abcd612", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.79
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling bumpalo v3.9.1
[INFO] [stderr]    Compiling wasm-bindgen v0.2.79
[INFO] [stderr]    Compiling wordle-solver-data v0.1.0 (/opt/rustwide/workdir/data)
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.79
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.79
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.79
[INFO] [stderr]    Compiling wordle-solver v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 21s
[INFO] running `Command { std: "docker" "inspect" "7b4409cab07890cf70a366a9841ead4e88bf4d851ccd3e35d70744c83abcd612", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b4409cab07890cf70a366a9841ead4e88bf4d851ccd3e35d70744c83abcd612", kill_on_drop: false }`
[INFO] [stdout] 7b4409cab07890cf70a366a9841ead4e88bf4d851ccd3e35d70744c83abcd612
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a262e9ebfef63dbc4e13532d8061ee092419e82dc8492496a72672dd65aa621a
[INFO] running `Command { std: "docker" "start" "-a" "a262e9ebfef63dbc4e13532d8061ee092419e82dc8492496a72672dd65aa621a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling wordle-solver v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.93s
[INFO] running `Command { std: "docker" "inspect" "a262e9ebfef63dbc4e13532d8061ee092419e82dc8492496a72672dd65aa621a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a262e9ebfef63dbc4e13532d8061ee092419e82dc8492496a72672dd65aa621a", kill_on_drop: false }`
[INFO] [stdout] a262e9ebfef63dbc4e13532d8061ee092419e82dc8492496a72672dd65aa621a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 52c47c72eda7a0b2eda67bd841c4fa094c528bf2894c6e60ee8ddd0e729c73c7
[INFO] running `Command { std: "docker" "start" "-a" "52c47c72eda7a0b2eda67bd841c4fa094c528bf2894c6e60ee8ddd0e729c73c7", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/wordle_solver-12f4d510e696bc55)
[INFO] [stdout] 
[INFO] [stdout] running 23 tests
[INFO] [stdout] test word::test::parse_short ... ok
[INFO] [stdout] test status::test::parse_long ... ok
[INFO] [stdout] test status::test::parse_short ... ok
[INFO] [stdout] test status::test::parse_success ... ok
[INFO] [stdout] test word::test::parse_invalid_char ... ok
[INFO] [stdout] test status::test::parse_invalid_char ... ok
[INFO] [stdout] test word::test::parse_long ... ok
[INFO] [stdout] test word::test::parse_from_lower ... ok
[INFO] [stdout] test status::test::test_format ... ok
[INFO] [stdout] test word::test::parse_success ... ok
[INFO] [stdout] test word::test::status_1 ... ok
[INFO] [stdout] test word::test::status_3 ... ok
[INFO] [stdout] test word::test::status_5 ... ok
[INFO] [stdout] test word_set::test::answer_3 ... ok
[INFO] [stdout] test word::test::test_format ... ok
[INFO] [stdout] test word::test::status_4 ... ok
[INFO] [stdout] test word::test::status_2 ... ok
[INFO] [stdout] test word::test::status_6 ... ok
[INFO] [stdout] test word_set::test::answer_2 ... ok
[INFO] [stdout] test word_set::test::filter_2 ... ok
[INFO] [stdout] test word_set::test::answer_1 ... ok
[INFO] [stdout] test word_set::test::full ... ok
[INFO] [stdout] test word_set::test::filter_1 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 23 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.10s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/wordle_solver-fddf582477fcb23a)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests wordle-solver
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 7) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 7) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Solver`
[INFO] [stdout]  --> src/lib.rs:8:18
[INFO] [stdout]   |
[INFO] [stdout] 3 | let mut solver = Solver::new();
[INFO] [stdout]   |                  ^^^^^^ not found in this scope
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]   |
[INFO] [stdout] 2 | use wordle_solver::Solver;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/lib.rs:15:32
[INFO] [stdout]    |
[INFO] [stdout] 2  |   fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_7_0() {
[INFO] [stdout]    |  ______________________________________-
[INFO] [stdout] 3  | | let mut solver = Solver::new();
[INFO] [stdout] 4  | |
[INFO] [stdout] 5  | | assert!(!solver.finished());
[INFO] [stdout] ...  |
[INFO] [stdout] 10 | | let word = solver.next("__YY_")?;
[INFO] [stdout]    | |                                ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout] ...  |
[INFO] [stdout] 20 | | assert_eq!(solver.answer(), Some("REBUT".to_string()));
[INFO] [stdout] 21 | | } _doctest_main_src_lib_rs_7_0() }
[INFO] [stdout]    | |_- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `FromResidual<_>` is not implemented for `()`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/lib.rs:17:32
[INFO] [stdout]    |
[INFO] [stdout] 2  |   fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_7_0() {
[INFO] [stdout]    |  ______________________________________-
[INFO] [stdout] 3  | | let mut solver = Solver::new();
[INFO] [stdout] 4  | |
[INFO] [stdout] 5  | | assert!(!solver.finished());
[INFO] [stdout] ...  |
[INFO] [stdout] 12 | | let word = solver.next("_GY__")?;
[INFO] [stdout]    | |                                ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout] ...  |
[INFO] [stdout] 20 | | assert_eq!(solver.answer(), Some("REBUT".to_string()));
[INFO] [stdout] 21 | | } _doctest_main_src_lib_rs_7_0() }
[INFO] [stdout]    | |_- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `FromResidual<_>` is not implemented for `()`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/lib.rs:19:32
[INFO] [stdout]    |
[INFO] [stdout] 2  |   fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_7_0() {
[INFO] [stdout]    |  ______________________________________-
[INFO] [stdout] 3  | | let mut solver = Solver::new();
[INFO] [stdout] 4  | |
[INFO] [stdout] 5  | | assert!(!solver.finished());
[INFO] [stdout] ...  |
[INFO] [stdout] 14 | | let word = solver.next("YYY__")?;
[INFO] [stdout]    | |                                ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout] ...  |
[INFO] [stdout] 20 | | assert_eq!(solver.answer(), Some("REBUT".to_string()));
[INFO] [stdout] 21 | | } _doctest_main_src_lib_rs_7_0() }
[INFO] [stdout]    | |_- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `FromResidual<_>` is not implemented for `()`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/lib.rs:21:32
[INFO] [stdout]    |
[INFO] [stdout] 2  |   fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_7_0() {
[INFO] [stdout]    |  ______________________________________-
[INFO] [stdout] 3  | | let mut solver = Solver::new();
[INFO] [stdout] 4  | |
[INFO] [stdout] 5  | | assert!(!solver.finished());
[INFO] [stdout] ...  |
[INFO] [stdout] 16 | | let word = solver.next("_____")?;
[INFO] [stdout]    | |                                ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout] ...  |
[INFO] [stdout] 20 | | assert_eq!(solver.answer(), Some("REBUT".to_string()));
[INFO] [stdout] 21 | | } _doctest_main_src_lib_rs_7_0() }
[INFO] [stdout]    | |_- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `FromResidual<_>` is not implemented for `()`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0433.
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 7)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.11s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "52c47c72eda7a0b2eda67bd841c4fa094c528bf2894c6e60ee8ddd0e729c73c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52c47c72eda7a0b2eda67bd841c4fa094c528bf2894c6e60ee8ddd0e729c73c7", kill_on_drop: false }`
[INFO] [stdout] 52c47c72eda7a0b2eda67bd841c4fa094c528bf2894c6e60ee8ddd0e729c73c7