[INFO] cloning repository https://github.com/meskill/challenge-transaction-engine
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/meskill/challenge-transaction-engine" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmeskill%2Fchallenge-transaction-engine", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmeskill%2Fchallenge-transaction-engine'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8e79c9d2d4146c80b01216116cfb11b3db360fd3
[INFO] checking meskill/challenge-transaction-engine against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmeskill%2Fchallenge-transaction-engine" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-3-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/meskill/challenge-transaction-engine
[INFO] finished tweaking git repo https://github.com/meskill/challenge-transaction-engine
[INFO] tweaked toml for git repo https://github.com/meskill/challenge-transaction-engine written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/meskill/challenge-transaction-engine on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/meskill/challenge-transaction-engine 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6f4bb2cd71b7a31d9a9ca6efb91eebcc704eaf9e11dbbb92da4c6bf98f3a57d1
[INFO] running `Command { std: "docker" "start" "-a" "6f4bb2cd71b7a31d9a9ca6efb91eebcc704eaf9e11dbbb92da4c6bf98f3a57d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f4bb2cd71b7a31d9a9ca6efb91eebcc704eaf9e11dbbb92da4c6bf98f3a57d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f4bb2cd71b7a31d9a9ca6efb91eebcc704eaf9e11dbbb92da4c6bf98f3a57d1", kill_on_drop: false }`
[INFO] [stdout] 6f4bb2cd71b7a31d9a9ca6efb91eebcc704eaf9e11dbbb92da4c6bf98f3a57d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e785595c5b42134f61cd233ee39d9ad6b3173175897938d4b29fca419d3383c0
[INFO] running `Command { std: "docker" "start" "-a" "e785595c5b42134f61cd233ee39d9ad6b3173175897938d4b29fca419d3383c0", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling unicode-ident v1.0.19
[INFO] [stderr]    Compiling serde_core v1.0.225
[INFO] [stderr]     Checking regex-syntax v0.8.6
[INFO] [stderr]    Compiling prettyplease v0.2.37
[INFO] [stderr]    Compiling serde v1.0.225
[INFO] [stderr]    Compiling rustversion v1.0.22
[INFO] [stderr]     Checking anstyle-query v1.1.4
[INFO] [stderr]     Checking cfg-if v1.0.3
[INFO] [stderr]     Checking tracing-core v0.1.34
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking log v0.4.28
[INFO] [stderr]    Compiling convert_case v0.7.1
[INFO] [stderr]     Checking sharded-slab v0.1.7
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]     Checking smallvec v1.15.1
[INFO] [stderr]     Checking thread_local v1.1.9
[INFO] [stderr]    Compiling rust_decimal v1.38.0
[INFO] [stderr]     Checking anstream v0.6.20
[INFO] [stderr]     Checking nu-ansi-term v0.50.1
[INFO] [stderr]     Checking csv-core v0.1.12
[INFO] [stderr]     Checking arrayvec v0.7.6
[INFO] [stderr]     Checking foldhash v0.2.0
[INFO] [stderr]     Checking hashbrown v0.16.0
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]     Checking clap_builder v4.5.48
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]     Checking regex-automata v0.4.10
[INFO] [stderr]     Checking matchers v0.2.0
[INFO] [stderr]    Compiling darling_core v0.21.3
[INFO] [stderr]    Compiling tracing-attributes v0.1.30
[INFO] [stderr]    Compiling serde_derive v1.0.225
[INFO] [stderr]    Compiling clap_derive v4.5.47
[INFO] [stderr]    Compiling derive_more-impl v2.0.1
[INFO] [stderr]    Compiling rust_decimal_macros v1.38.0
[INFO] [stderr]    Compiling test-log-macros v0.2.18
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]     Checking tracing-subscriber v0.3.20
[INFO] [stderr]     Checking clap v4.5.48
[INFO] [stderr]    Compiling darling_macro v0.21.3
[INFO] [stderr]    Compiling darling v0.21.3
[INFO] [stderr]    Compiling bon-macros v3.7.2
[INFO] [stderr]     Checking test-log v0.2.18
[INFO] [stderr]     Checking csv v1.3.1
[INFO] [stderr]     Checking derive_more v2.0.1
[INFO] [stderr]     Checking bon v3.7.2
[INFO] [stderr]     Checking challenge-transaction-engine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<&mut client::Client, Infallible>
[INFO] [stdout]   --> src/transaction_engine/store/in_memory.rs:23:94
[INFO] [stdout]    |
[INFO] [stdout] 23 |       fn get_or_create_client(&mut self, client: ClientId) -> Result<&mut Client, Self::Error> {
[INFO] [stdout]    |  ______________________________________________________________________________________________^
[INFO] [stdout] 24 | |         let client = self
[INFO] [stdout] 25 | |             .clients
[INFO] [stdout] 26 | |             .entry(client)
[INFO] [stdout] ...  |
[INFO] [stdout] 29 | |         Ok(client)
[INFO] [stdout] 30 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<&mut client::Client, Infallible>
[INFO] [stdout]   --> src/transaction_engine/store/in_memory.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |         Ok(client)
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::option::Option<&transaction::Transaction>, Infallible>
[INFO] [stdout]   --> src/transaction_engine/store/in_memory.rs:37:86
[INFO] [stdout]    |
[INFO] [stdout] 37 |       fn get_transaction(&self, tx: TxId) -> Result<Option<&Transaction>, Self::Error> {
[INFO] [stdout]    |  ______________________________________________________________________________________^
[INFO] [stdout] 38 | |         Ok(self.transactions.get(&tx))
[INFO] [stdout] 39 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::option::Option<&transaction::Transaction>, Infallible>
[INFO] [stdout]   --> src/transaction_engine/store/in_memory.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |         Ok(self.transactions.get(&tx))
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::option::Option<&dispute::Dispute>, Infallible>
[INFO] [stdout]   --> src/transaction_engine/store/in_memory.rs:41:78
[INFO] [stdout]    |
[INFO] [stdout] 41 |       fn get_dispute(&self, tx: TxId) -> Result<Option<&Dispute>, Self::Error> {
[INFO] [stdout]    |  ______________________________________________________________________________^
[INFO] [stdout] 42 | |         Ok(self.disputes.get(&tx))
[INFO] [stdout] 43 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::option::Option<&dispute::Dispute>, Infallible>
[INFO] [stdout]   --> src/transaction_engine/store/in_memory.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 |         Ok(self.disputes.get(&tx))
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<hashbrown::hash_map::Values<'_, client::ClientId, client::Client>, Infallible>
[INFO] [stdout]   --> src/transaction_engine/store/in_memory.rs:50:85
[INFO] [stdout]    |
[INFO] [stdout] 50 |       fn get_all_clients(&self) -> Result<impl Iterator<Item = &Client>, Self::Error> {
[INFO] [stdout]    |  _____________________________________________________________________________________^
[INFO] [stdout] 51 | |         Ok(self.clients.values())
[INFO] [stdout] 52 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<hashbrown::hash_map::Values<'_, client::ClientId, client::Client>, Infallible>
[INFO] [stdout]   --> src/transaction_engine/store/in_memory.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |         Ok(self.clients.values())
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `challenge-transaction-engine` (lib) due to 8 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<&mut client::Client, Infallible>
[INFO] [stdout]   --> src/transaction_engine/store/in_memory.rs:23:94
[INFO] [stdout]    |
[INFO] [stdout] 23 |       fn get_or_create_client(&mut self, client: ClientId) -> Result<&mut Client, Self::Error> {
[INFO] [stdout]    |  ______________________________________________________________________________________________^
[INFO] [stdout] 24 | |         let client = self
[INFO] [stdout] 25 | |             .clients
[INFO] [stdout] 26 | |             .entry(client)
[INFO] [stdout] ...  |
[INFO] [stdout] 29 | |         Ok(client)
[INFO] [stdout] 30 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<&mut client::Client, Infallible>
[INFO] [stdout]   --> src/transaction_engine/store/in_memory.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |         Ok(client)
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::option::Option<&transaction::Transaction>, Infallible>
[INFO] [stdout]   --> src/transaction_engine/store/in_memory.rs:37:86
[INFO] [stdout]    |
[INFO] [stdout] 37 |       fn get_transaction(&self, tx: TxId) -> Result<Option<&Transaction>, Self::Error> {
[INFO] [stdout]    |  ______________________________________________________________________________________^
[INFO] [stdout] 38 | |         Ok(self.transactions.get(&tx))
[INFO] [stdout] 39 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::option::Option<&transaction::Transaction>, Infallible>
[INFO] [stdout]   --> src/transaction_engine/store/in_memory.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |         Ok(self.transactions.get(&tx))
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::option::Option<&dispute::Dispute>, Infallible>
[INFO] [stdout]   --> src/transaction_engine/store/in_memory.rs:41:78
[INFO] [stdout]    |
[INFO] [stdout] 41 |       fn get_dispute(&self, tx: TxId) -> Result<Option<&Dispute>, Self::Error> {
[INFO] [stdout]    |  ______________________________________________________________________________^
[INFO] [stdout] 42 | |         Ok(self.disputes.get(&tx))
[INFO] [stdout] 43 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::option::Option<&dispute::Dispute>, Infallible>
[INFO] [stdout]   --> src/transaction_engine/store/in_memory.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 |         Ok(self.disputes.get(&tx))
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<hashbrown::hash_map::Values<'_, client::ClientId, client::Client>, Infallible>
[INFO] [stdout]   --> src/transaction_engine/store/in_memory.rs:50:85
[INFO] [stdout]    |
[INFO] [stdout] 50 |       fn get_all_clients(&self) -> Result<impl Iterator<Item = &Client>, Self::Error> {
[INFO] [stdout]    |  _____________________________________________________________________________________^
[INFO] [stdout] 51 | |         Ok(self.clients.values())
[INFO] [stdout] 52 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<hashbrown::hash_map::Values<'_, client::ClientId, client::Client>, Infallible>
[INFO] [stdout]   --> src/transaction_engine/store/in_memory.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |         Ok(self.clients.values())
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `challenge-transaction-engine` (lib test) due to 8 previous errors
[INFO] running `Command { std: "docker" "inspect" "e785595c5b42134f61cd233ee39d9ad6b3173175897938d4b29fca419d3383c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e785595c5b42134f61cd233ee39d9ad6b3173175897938d4b29fca419d3383c0", kill_on_drop: false }`
[INFO] [stdout] e785595c5b42134f61cd233ee39d9ad6b3173175897938d4b29fca419d3383c0
