[INFO] fetching crate cardano-serialization-lib 16.0.0-beta.1...
[INFO] checking cardano-serialization-lib-16.0.0-beta.1 against master#042c759f774872cf2f94c6685ce87e24c046c722 for pr-156977
[INFO] extracting crate cardano-serialization-lib 16.0.0-beta.1 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate cardano-serialization-lib 16.0.0-beta.1
[INFO] finished tweaking crates.io crate cardano-serialization-lib 16.0.0-beta.1
[INFO] tweaked toml for crates.io crate cardano-serialization-lib 16.0.0-beta.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate cardano-serialization-lib 16.0.0-beta.1 on toolchain 042c759f774872cf2f94c6685ce87e24c046c722
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+042c759f774872cf2f94c6685ce87e24c046c722" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate cardano-serialization-lib 16.0.0-beta.1 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" "+042c759f774872cf2f94c6685ce87e24c046c722" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.93
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.93
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.93
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[INFO] [stderr]   Downloaded env_logger v0.7.1
[INFO] [stderr]   Downloaded cc v1.2.60
[INFO] [stderr]   Downloaded cryptoxide v0.4.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3e793bdf10248eb2ddbd6b0faebed8155c11b4589982e2893733958d93e8d540" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 758c008ceecd0f34c65a8e247d1df6dda9f9b9b2efa574d47a2d9bb77765093a
[INFO] running `Command { std: "docker" "start" "758c008ceecd0f34c65a8e247d1df6dda9f9b9b2efa574d47a2d9bb77765093a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "758c008ceecd0f34c65a8e247d1df6dda9f9b9b2efa574d47a2d9bb77765093a" "/opt/rustwide/cargo-home/bin/cargo" "+042c759f774872cf2f94c6685ce87e24c046c722" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "758c008ceecd0f34c65a8e247d1df6dda9f9b9b2efa574d47a2d9bb77765093a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "758c008ceecd0f34c65a8e247d1df6dda9f9b9b2efa574d47a2d9bb77765093a" "/opt/rustwide/cargo-home/bin/cargo" "+042c759f774872cf2f94c6685ce87e24c046c722" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stderr]     Checking num-bigint v0.4.6
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[INFO] [stderr]    Compiling syn v1.0.109
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[INFO] [stderr]    Compiling rand_chacha v0.1.1
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[INFO] [stderr]     Checking quickcheck v0.9.2
[INFO] [stderr]     Checking cardano-serialization-lib v16.0.0-beta.1 (/opt/rustwide/workdir)
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 10s
[INFO] running `Command { std: "docker" "inspect" "758c008ceecd0f34c65a8e247d1df6dda9f9b9b2efa574d47a2d9bb77765093a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "758c008ceecd0f34c65a8e247d1df6dda9f9b9b2efa574d47a2d9bb77765093a", kill_on_drop: false }`
[INFO] [stdout] 758c008ceecd0f34c65a8e247d1df6dda9f9b9b2efa574d47a2d9bb77765093a
