[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 beta-2022-04-10 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 beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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" "+beta-2022-04-10" "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" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b924ee87e2e2b1751c754b96db7e711c2368594cc165dcc55b70698733417947
[INFO] running `Command { std: "docker" "start" "-a" "b924ee87e2e2b1751c754b96db7e711c2368594cc165dcc55b70698733417947", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b924ee87e2e2b1751c754b96db7e711c2368594cc165dcc55b70698733417947", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b924ee87e2e2b1751c754b96db7e711c2368594cc165dcc55b70698733417947", kill_on_drop: false }`
[INFO] [stdout] b924ee87e2e2b1751c754b96db7e711c2368594cc165dcc55b70698733417947
[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" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b8f4a6ebb4c000838a64dcee1a52ae09c4ac817121f640340c530f7302e1d9a9
[INFO] running `Command { std: "docker" "start" "-a" "b8f4a6ebb4c000838a64dcee1a52ae09c4ac817121f640340c530f7302e1d9a9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.79
[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 40.45s
[INFO] running `Command { std: "docker" "inspect" "b8f4a6ebb4c000838a64dcee1a52ae09c4ac817121f640340c530f7302e1d9a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8f4a6ebb4c000838a64dcee1a52ae09c4ac817121f640340c530f7302e1d9a9", kill_on_drop: false }`
[INFO] [stdout] b8f4a6ebb4c000838a64dcee1a52ae09c4ac817121f640340c530f7302e1d9a9
[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" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 90b493bf5e414815844e0c288f24dc287fd38b44b1c053c2ad536a25d4e38b30
[INFO] running `Command { std: "docker" "start" "-a" "90b493bf5e414815844e0c288f24dc287fd38b44b1c053c2ad536a25d4e38b30", 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 1m 09s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/wordle_solver-f32bbb194c88eab6)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/wordle_solver-6cc59cc9b13bf8a3)
[INFO] running `Command { std: "docker" "inspect" "90b493bf5e414815844e0c288f24dc287fd38b44b1c053c2ad536a25d4e38b30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90b493bf5e414815844e0c288f24dc287fd38b44b1c053c2ad536a25d4e38b30", kill_on_drop: false }`
[INFO] [stdout] 90b493bf5e414815844e0c288f24dc287fd38b44b1c053c2ad536a25d4e38b30
[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" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0087fa8d669df57f4a01ce8b7fde97991ec993cbe5fb3c281c9b475857f01c07
[INFO] running `Command { std: "docker" "start" "-a" "0087fa8d669df57f4a01ce8b7fde97991ec993cbe5fb3c281c9b475857f01c07", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.59s
[INFO] [stdout] running 23 tests
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/wordle_solver-f32bbb194c88eab6)
[INFO] [stdout] test status::test::parse_invalid_char ... ok
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/wordle_solver-6cc59cc9b13bf8a3)
[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 status::test::test_format ... ok
[INFO] [stdout] test word::test::parse_long ... ok
[INFO] [stdout] test word::test::parse_invalid_char ... ok
[INFO] [stdout] test word::test::status_1 ... ok
[INFO] [stdout] test word::test::parse_short ... ok
[INFO] [stdout] test word::test::status_2 ... ok
[INFO] [stdout] test word::test::parse_success ... ok
[INFO] [stdout] test word::test::parse_from_lower ... ok
[INFO] [stdout] test word::test::status_4 ... ok
[INFO] [stdout] test word::test::status_5 ... ok
[INFO] [stdout] test word::test::status_3 ... ok
[INFO] [stdout] test word::test::test_format ... ok
[INFO] [stdout] test word_set::test::answer_1 ... ok
[INFO] [stdout] test word::test::status_6 ... ok
[INFO] [stderr]    Doc-tests wordle-solver
[INFO] [stdout] test word_set::test::answer_2 ... ok
[INFO] [stdout] test word_set::test::answer_3 ... ok
[INFO] [stdout] test word_set::test::full ... ok
[INFO] [stdout] test word_set::test::filter_2 ... 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 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[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 0.40s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "0087fa8d669df57f4a01ce8b7fde97991ec993cbe5fb3c281c9b475857f01c07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0087fa8d669df57f4a01ce8b7fde97991ec993cbe5fb3c281c9b475857f01c07", kill_on_drop: false }`
[INFO] [stdout] 0087fa8d669df57f4a01ce8b7fde97991ec993cbe5fb3c281c9b475857f01c07