[INFO] fetching crate cardano-serialization-lib 15.0.2-beta.2...
[INFO] checking cardano-serialization-lib-15.0.2-beta.2 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate cardano-serialization-lib 15.0.2-beta.2 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate cardano-serialization-lib 15.0.2-beta.2
[INFO] finished tweaking crates.io crate cardano-serialization-lib 15.0.2-beta.2
[INFO] tweaked toml for crates.io crate cardano-serialization-lib 15.0.2-beta.2 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate cardano-serialization-lib 15.0.2-beta.2 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 crates.io crate cardano-serialization-lib 15.0.2-beta.2 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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] f4d5542c81d4e0a9b229c3b4bd1e820b136a8cc2d428f811238fd012dbb6feb1
[INFO] running `Command { std: "docker" "start" "-a" "f4d5542c81d4e0a9b229c3b4bd1e820b136a8cc2d428f811238fd012dbb6feb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f4d5542c81d4e0a9b229c3b4bd1e820b136a8cc2d428f811238fd012dbb6feb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4d5542c81d4e0a9b229c3b4bd1e820b136a8cc2d428f811238fd012dbb6feb1", kill_on_drop: false }`
[INFO] [stdout] f4d5542c81d4e0a9b229c3b4bd1e820b136a8cc2d428f811238fd012dbb6feb1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] a1253dc8697f2c24a071bfc0b33fcd66612a2a97bda8b56662268786f981fa31
[INFO] running `Command { std: "docker" "start" "-a" "a1253dc8697f2c24a071bfc0b33fcd66612a2a97bda8b56662268786f981fa31", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling serde v1.0.217
[INFO] [stderr]    Compiling serde_json v1.0.135
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]    Compiling cc v1.2.9
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]    Compiling schemars v0.8.21
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking cpufeatures v0.2.16
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking log v0.4.22
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]     Checking num-iter v0.1.45
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling syn v2.0.96
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking sha2 v0.9.9
[INFO] [stderr]    Compiling clear_on_drop v0.2.5
[INFO] [stderr]     Checking num-rational v0.4.2
[INFO] [stderr]     Checking num v0.4.3
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]    Compiling quickcheck_macros v0.9.1
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling serde_derive_internals v0.29.1
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling serde_derive v1.0.217
[INFO] [stderr]    Compiling num-derive v0.4.2
[INFO] [stderr]    Compiling schemars_derive v0.8.21
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking ahash v0.8.11
[INFO] [stderr]     Checking hashbrown v0.14.5
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking hashlink v0.9.1
[INFO] [stderr]     Checking quickcheck v0.9.2
[INFO] [stderr]     Checking cardano-serialization-lib v15.0.2-beta.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::vec::Vec<protocol_types::numeric::int::Int>, Infallible>
[INFO] [stdout]   --> src/serialization/plutus/cost_model.rs:34:17
[INFO] [stdout]    |
[INFO] [stdout] 34 |         Ok(Self(arr.try_into().unwrap()))
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cardano-serialization-lib` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]     --> src/tests/builders/tx_builder.rs:6960:5
[INFO] [stdout]      |
[INFO] [stdout] 6960 |     collateral_builder.add_regular_input(&fake_address, &fake_input, &Value::new(&BigNum(100000000)));
[INFO] [stdout]      |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]      = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]      |
[INFO] [stdout] 6960 |     let _ = collateral_builder.add_regular_input(&fake_address, &fake_input, &Value::new(&BigNum(100000000)));
[INFO] [stdout]      |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]     --> src/tests/builders/tx_builder.rs:7015:5
[INFO] [stdout]      |
[INFO] [stdout] 7015 |     tx_builder.calc_script_data_hash(&TxBuilderConstants::plutus_conway_cost_models()); 
[INFO] [stdout]      |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]      |
[INFO] [stdout] 7015 |     let _ = tx_builder.calc_script_data_hash(&TxBuilderConstants::plutus_conway_cost_models()); 
[INFO] [stdout]      |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::vec::Vec<protocol_types::numeric::int::Int>, Infallible>
[INFO] [stdout]   --> src/serialization/plutus/cost_model.rs:34:17
[INFO] [stdout]    |
[INFO] [stdout] 34 |         Ok(Self(arr.try_into().unwrap()))
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cardano-serialization-lib` (lib test) due to 1 previous error; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "a1253dc8697f2c24a071bfc0b33fcd66612a2a97bda8b56662268786f981fa31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1253dc8697f2c24a071bfc0b33fcd66612a2a97bda8b56662268786f981fa31", kill_on_drop: false }`
[INFO] [stdout] a1253dc8697f2c24a071bfc0b33fcd66612a2a97bda8b56662268786f981fa31
