[INFO] cloning repository https://github.com/pashadia/bridge-stack-backend
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pashadia/bridge-stack-backend" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpashadia%2Fbridge-stack-backend", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpashadia%2Fbridge-stack-backend'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b72fb4a5acf9cdb66a320ce8ddd1f78daf56897f
[INFO] testing pashadia/bridge-stack-backend against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpashadia%2Fbridge-stack-backend" "/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/pashadia/bridge-stack-backend on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/pashadia/bridge-stack-backend
[INFO] finished tweaking git repo https://github.com/pashadia/bridge-stack-backend
[INFO] tweaked toml for git repo https://github.com/pashadia/bridge-stack-backend written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/pashadia/bridge-stack-backend already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2a7f9a7069a3ececbe71ff44e332aa2a737c518244e891d7b5bee4ef1e215739
[INFO] running `Command { std: "docker" "start" "-a" "2a7f9a7069a3ececbe71ff44e332aa2a737c518244e891d7b5bee4ef1e215739", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2a7f9a7069a3ececbe71ff44e332aa2a737c518244e891d7b5bee4ef1e215739", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a7f9a7069a3ececbe71ff44e332aa2a737c518244e891d7b5bee4ef1e215739", kill_on_drop: false }`
[INFO] [stdout] 2a7f9a7069a3ececbe71ff44e332aa2a737c518244e891d7b5bee4ef1e215739
[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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e5162048a3c7a405a66d0c9c5c80278930d4fb33993d0ef12b518929ad6afcf9
[INFO] running `Command { std: "docker" "start" "-a" "e5162048a3c7a405a66d0c9c5c80278930d4fb33993d0ef12b518929ad6afcf9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.89
[INFO] [stderr]    Compiling syn v1.0.64
[INFO] [stderr]    Compiling serde_derive v1.0.124
[INFO] [stderr]    Compiling serde v1.0.124
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling display-as-proc-macro v0.6.0 (https://github.com/droundy/display-as#41fcfb0c)
[INFO] [stderr]    Compiling num-derive v0.3.3
[INFO] [stderr]    Compiling display-as v0.6.0 (https://github.com/droundy/display-as#41fcfb0c)
[INFO] [stderr]    Compiling bridge-deck v0.1.1 (https://github.com/droundy/bridge-cards?branch=main#acd38fdb)
[INFO] [stderr]    Compiling bridge-backend v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.80s
[INFO] running `Command { std: "docker" "inspect" "e5162048a3c7a405a66d0c9c5c80278930d4fb33993d0ef12b518929ad6afcf9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5162048a3c7a405a66d0c9c5c80278930d4fb33993d0ef12b518929ad6afcf9", kill_on_drop: false }`
[INFO] [stdout] e5162048a3c7a405a66d0c9c5c80278930d4fb33993d0ef12b518929ad6afcf9
[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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2eb086b2db8caf7db504817baf2dedec95c6611433324dc98d95a85c20fd8bcd
[INFO] running `Command { std: "docker" "start" "-a" "2eb086b2db8caf7db504817baf2dedec95c6611433324dc98d95a85c20fd8bcd", kill_on_drop: false }`
[INFO] [stderr]    Compiling bridge-backend v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ContractLevel`
[INFO] [stdout]  --> src/auction/tests.rs:5:23
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::contract::{ContractLevel, Strain};
[INFO] [stdout]   |                       ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.63s
[INFO] running `Command { std: "docker" "inspect" "2eb086b2db8caf7db504817baf2dedec95c6611433324dc98d95a85c20fd8bcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2eb086b2db8caf7db504817baf2dedec95c6611433324dc98d95a85c20fd8bcd", kill_on_drop: false }`
[INFO] [stdout] 2eb086b2db8caf7db504817baf2dedec95c6611433324dc98d95a85c20fd8bcd
[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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 397a79f41f1787f6d49dea5cbb30ce42e094e0c1aa5fd38cee7cee61200d9d04
[INFO] running `Command { std: "docker" "start" "-a" "397a79f41f1787f6d49dea5cbb30ce42e094e0c1aa5fd38cee7cee61200d9d04", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `ContractLevel`
[INFO] [stderr]  --> src/auction/tests.rs:5:23
[INFO] [stderr]   |
[INFO] [stderr] 5 | use crate::contract::{ContractLevel, Strain};
[INFO] [stderr]   |                       ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `bridge-backend` (lib test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/bridge_backend-aa94b2a85a347fb2)
[INFO] [stdout] 
[INFO] [stdout] running 30 tests
[INFO] [stdout] test cardplay::tests::start_new_board ... ok
[INFO] [stdout] test cardplay::trick::tests::new ... ok
[INFO] [stdout] test contract::tests::basic::comparisons ... ok
[INFO] [stdout] test auction::tests::disallow_insufficient ... ok
[INFO] [stdout] test contract::tests::games_doubled ... ok
[INFO] [stdout] test contract::tests::games_undoubled ... ok
[INFO] [stdout] test contract::tests::score_undoubled_down ... ok
[INFO] [stdout] test contract::tests::slams ... ok
[INFO] [stdout] test tests::all_cards_should_exist ... ok
[INFO] [stdout] test tests::correct_number_of_cards ... ok
[INFO] [stdout] test auction::tests::contract::declarer_is_first_to_name_contract ... ok
[INFO] [stdout] test auction::tests::contract::redoubled_contract ... ok
[INFO] [stdout] test contract::tests::score_redoubled_down ... ok
[INFO] [stdout] test auction::tests::contract::declarer_did_actually_win_auction ... ok
[INFO] [stdout] test auction::tests::contract::doubled_contract ... ok
[INFO] [stdout] test auction::tests::basic::comparisons ... ok
[INFO] [stdout] test auction::tests::contract::passout ... ok
[INFO] [stdout] test auction::tests::contract::basic_contract ... ok
[INFO] [stdout] test contract::tests::score_doubled_down ... ok
[INFO] [stdout] test auction::tests::can_bid_strain ... ok
[INFO] [stdout] test auction::tests::contract::other_declarers ... ok
[INFO] [stdout] test contract::tests::partscores_made_undoubled ... ok
[INFO] [stdout] test auction::tests::auction_finished ... ok
[INFO] [stdout] test contract::tests::new ... ok
[INFO] [stdout] test contract::tests::doubled_partscores ... ok
[INFO] [stdout] test auction::tests::basic::read_strain_bid ... ok
[INFO] [stderr]    Doc-tests bridge-backend
[INFO] [stdout] test auction::tests::redoubles ... ok
[INFO] [stdout] test auction::tests::can_pass_out ... ok
[INFO] [stdout] test auction::tests::doubles ... ok
[INFO] [stdout] test tests::new_board ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 30 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr] warning: lint `missing_crate_level_docs` has been renamed to `rustdoc::missing_crate_level_docs`
[INFO] [stderr]  --> /opt/rustwide/workdir/src/lib.rs:3:9
[INFO] [stderr]   |
[INFO] [stderr] 3 | #![deny(missing_crate_level_docs)]
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `rustdoc::missing_crate_level_docs`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test src/auction/mod.rs - auction::Auction::bid (line 60) ... FAILED
[INFO] [stdout] test src/auction/mod.rs - auction::Error::CantDouble (line 273) ... ok
[INFO] [stdout] test src/lib.rs - Board::vulnerability (line 56) ... ok
[INFO] [stdout] test src/auction/mod.rs - auction::Error::CantRedouble (line 292) ... ok
[INFO] [stdout] test src/lib.rs - turns (line 143) ... ok
[INFO] [stdout] test src/lib.rs - Board::dealer (line 73) ... ok
[INFO] [stdout] test src/auction/mod.rs - auction::Error::InsufficientBid (line 256) ... ok
[INFO] [stdout] test src/auction/mod.rs - auction::Auction (line 17) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/auction/mod.rs - auction::Auction::bid (line 60) 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/auction/mod.rs:64:24
[INFO] [stdout]     |
[INFO] [stdout] 3   |   fn main() { #[allow(non_snake_case)] fn _doctest_main_src_auction_mod_rs_60_0() {
[INFO] [stdout]     |  ______________________________________-
[INFO] [stdout] 4   | | use bridge_backend::{Auction, BridgeDirection};
[INFO] [stdout] 5   | | use bridge_backend::auction::constants::*;
[INFO] [stdout] 6   | | let mut auction = Auction::new(BridgeDirection::S);
[INFO] [stdout] 7   | | auction.bid(TWO_SPADES)?;
[INFO] [stdout]     | |                        ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout] ...   |
[INFO] [stdout] 10  | | auction.bid(PASS)?;
[INFO] [stdout] 11  | | } _doctest_main_src_auction_mod_rs_60_0() }
[INFO] [stdout]     | |_- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `FromResidual<Result<Infallible, bridge_backend::auction::Error>>` is not implemented for `()`
[INFO] [stdout] note: required by `from_residual`
[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/auction/mod.rs:65:20
[INFO] [stdout]     |
[INFO] [stdout] 3   |   fn main() { #[allow(non_snake_case)] fn _doctest_main_src_auction_mod_rs_60_0() {
[INFO] [stdout]     |  ______________________________________-
[INFO] [stdout] 4   | | use bridge_backend::{Auction, BridgeDirection};
[INFO] [stdout] 5   | | use bridge_backend::auction::constants::*;
[INFO] [stdout] 6   | | let mut auction = Auction::new(BridgeDirection::S);
[INFO] [stdout] 7   | | auction.bid(TWO_SPADES)?;
[INFO] [stdout] 8   | | auction.bid(DOUBLE)?;
[INFO] [stdout]     | |                    ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout] 9   | | auction.bid(REDOUBLE)?;
[INFO] [stdout] 10  | | auction.bid(PASS)?;
[INFO] [stdout] 11  | | } _doctest_main_src_auction_mod_rs_60_0() }
[INFO] [stdout]     | |_- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `FromResidual<Result<Infallible, bridge_backend::auction::Error>>` is not implemented for `()`
[INFO] [stdout] note: required by `from_residual`
[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/auction/mod.rs:66:22
[INFO] [stdout]     |
[INFO] [stdout] 3   |   fn main() { #[allow(non_snake_case)] fn _doctest_main_src_auction_mod_rs_60_0() {
[INFO] [stdout]     |  ______________________________________-
[INFO] [stdout] 4   | | use bridge_backend::{Auction, BridgeDirection};
[INFO] [stdout] 5   | | use bridge_backend::auction::constants::*;
[INFO] [stdout] 6   | | let mut auction = Auction::new(BridgeDirection::S);
[INFO] [stdout] ...   |
[INFO] [stdout] 9   | | auction.bid(REDOUBLE)?;
[INFO] [stdout]     | |                      ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout] 10  | | auction.bid(PASS)?;
[INFO] [stdout] 11  | | } _doctest_main_src_auction_mod_rs_60_0() }
[INFO] [stdout]     | |_- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `FromResidual<Result<Infallible, bridge_backend::auction::Error>>` is not implemented for `()`
[INFO] [stdout] note: required by `from_residual`
[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/auction/mod.rs:67:18
[INFO] [stdout]     |
[INFO] [stdout] 3   |   fn main() { #[allow(non_snake_case)] fn _doctest_main_src_auction_mod_rs_60_0() {
[INFO] [stdout]     |  ______________________________________-
[INFO] [stdout] 4   | | use bridge_backend::{Auction, BridgeDirection};
[INFO] [stdout] 5   | | use bridge_backend::auction::constants::*;
[INFO] [stdout] 6   | | let mut auction = Auction::new(BridgeDirection::S);
[INFO] [stdout] ...   |
[INFO] [stdout] 10  | | auction.bid(PASS)?;
[INFO] [stdout]     | |                  ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout] 11  | | } _doctest_main_src_auction_mod_rs_60_0() }
[INFO] [stdout]     | |_- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `FromResidual<Result<Infallible, bridge_backend::auction::Error>>` is not implemented for `()`
[INFO] [stdout] note: required by `from_residual`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/auction/mod.rs - auction::Auction::bid (line 60)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 7 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.76s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "397a79f41f1787f6d49dea5cbb30ce42e094e0c1aa5fd38cee7cee61200d9d04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "397a79f41f1787f6d49dea5cbb30ce42e094e0c1aa5fd38cee7cee61200d9d04", kill_on_drop: false }`
[INFO] [stdout] 397a79f41f1787f6d49dea5cbb30ce42e094e0c1aa5fd38cee7cee61200d9d04