[INFO] fetching crate flow-expression-parser 0.7.0...
[INFO] testing flow-expression-parser-0.7.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate flow-expression-parser 0.7.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate flow-expression-parser 0.7.0
[INFO] finished tweaking crates.io crate flow-expression-parser 0.7.0
[INFO] tweaked toml for crates.io crate flow-expression-parser 0.7.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate flow-expression-parser 0.7.0 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 208 packages to latest compatible versions
[INFO] [stderr]       Adding nom v7.1.3 (available: v8.0.0)
[INFO] [stderr]       Adding rstest v0.18.2 (available: v0.26.1)
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.17)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2e17bd99f6ad1b6032fc3b60a0c5b5156309bb0f52544205063877b9d8d8ed31
[INFO] running `Command { std: "docker" "start" "-a" "2e17bd99f6ad1b6032fc3b60a0c5b5156309bb0f52544205063877b9d8d8ed31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2e17bd99f6ad1b6032fc3b60a0c5b5156309bb0f52544205063877b9d8d8ed31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e17bd99f6ad1b6032fc3b60a0c5b5156309bb0f52544205063877b9d8d8ed31", kill_on_drop: false }`
[INFO] [stdout] 2e17bd99f6ad1b6032fc3b60a0c5b5156309bb0f52544205063877b9d8d8ed31
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e4432f6b0984b114acb78ff3ab38fda4511230c5a8c3b9f637db9f011c85f699
[INFO] running `Command { std: "docker" "start" "-a" "e4432f6b0984b114acb78ff3ab38fda4511230c5a8c3b9f637db9f011c85f699", kill_on_drop: false }`
[INFO] [stderr]    Compiling thiserror v2.0.17
[INFO] [stderr]    Compiling ucd-trie v0.1.7
[INFO] [stderr]    Compiling aho-corasick v1.1.3
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[INFO] [stderr]    Compiling anymap2 v0.13.0
[INFO] [stderr]    Compiling itertools v0.11.0
[INFO] [stderr]    Compiling thiserror-impl v2.0.17
[INFO] [stderr]    Compiling serde_derive v1.0.228
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[INFO] [stderr]    Compiling minimal-lexical v0.2.1
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[INFO] [stderr]    Compiling parking_lot v0.12.4
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling seeded-random v0.6.0
[INFO] [stderr]    Compiling pest v2.8.2
[INFO] [stderr]    Compiling regex-automata v0.4.11
[INFO] [stderr]    Compiling pest_meta v2.8.2
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling pest_generator v2.8.2
[INFO] [stderr]    Compiling regex v1.11.3
[INFO] [stderr]    Compiling kstring v2.0.2
[INFO] [stderr]    Compiling pest_derive v2.8.2
[INFO] [stderr]    Compiling loose-liquid-core v0.27.0
[INFO] [stderr]    Compiling loose-liquid-lib v0.27.0
[INFO] [stderr]    Compiling loose-liquid v0.27.0
[INFO] [stderr]    Compiling liquid-json v0.6.1
[INFO] [stderr]    Compiling flow-expression-parser v0.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lint `private_in_public` has been removed: replaced with another group of lints, see RFC <https://rust-lang.github.io/rfcs/2145-type-privacy.html> for more information
[INFO] [stdout]   --> src/lib.rs:93:3
[INFO] [stdout]    |
[INFO] [stdout] 93 |   private_in_public,
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]    --> src/ast.rs:274:18
[INFO] [stdout]     |
[INFO] [stdout] 274 |     let (_, v) = crate::parse::v1::flow_expression(s).map_err(|e| Error::FlowExpressionParse(e.to_string()))?;
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:107:3
[INFO] [stdout]     |
[INFO] [stdout] 107 |   unused_qualifications,
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]     |
[INFO] [stdout] 274 -     let (_, v) = crate::parse::v1::flow_expression(s).map_err(|e| Error::FlowExpressionParse(e.to_string()))?;
[INFO] [stdout] 274 +     let (_, v) = parse::v1::flow_expression(s).map_err(|e| Error::FlowExpressionParse(e.to_string()))?;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]    --> src/ast.rs:414:18
[INFO] [stdout]     |
[INFO] [stdout] 414 |     let (_, v) = crate::parse::v1::instance_port(s).map_err(|_e| Error::PortSyntax(s.to_owned()))?;
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]     |
[INFO] [stdout] 414 -     let (_, v) = crate::parse::v1::instance_port(s).map_err(|_e| Error::PortSyntax(s.to_owned()))?;
[INFO] [stdout] 414 +     let (_, v) = parse::v1::instance_port(s).map_err(|_e| Error::PortSyntax(s.to_owned()))?;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.83s
[INFO] running `Command { std: "docker" "inspect" "e4432f6b0984b114acb78ff3ab38fda4511230c5a8c3b9f637db9f011c85f699", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4432f6b0984b114acb78ff3ab38fda4511230c5a8c3b9f637db9f011c85f699", kill_on_drop: false }`
[INFO] [stdout] e4432f6b0984b114acb78ff3ab38fda4511230c5a8c3b9f637db9f011c85f699
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6997b102a97fa576e50220dcbf630ae2a957923cdec824df72d68ce0fdf0e628
[INFO] running `Command { std: "docker" "start" "-a" "6997b102a97fa576e50220dcbf630ae2a957923cdec824df72d68ce0fdf0e628", kill_on_drop: false }`
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[INFO] [stderr]    Compiling tokio-io-timeout v1.2.1
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[INFO] [stderr]    Compiling rstest v0.18.2
[INFO] [stderr]    Compiling opentelemetry_sdk v0.19.0
[INFO] [stderr]    Compiling h2 v0.3.27
[INFO] [stderr]    Compiling tower v0.4.13
[INFO] [stderr]    Compiling derive_builder_macro v0.12.0
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[INFO] [stderr]    Compiling loose-liquid-lib v0.27.0
[INFO] [stderr]    Compiling loose-liquid v0.27.0
[INFO] [stderr]    Compiling liquid-json v0.6.1
[INFO] [stderr]    Compiling opentelemetry v0.19.0
[INFO] [stderr]    Compiling tracing-opentelemetry v0.19.0
[INFO] [stderr]    Compiling flow-expression-parser v0.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lint `private_in_public` has been removed: replaced with another group of lints, see RFC <https://rust-lang.github.io/rfcs/2145-type-privacy.html> for more information
[INFO] [stdout]   --> src/lib.rs:93:3
[INFO] [stdout]    |
[INFO] [stdout] 93 |   private_in_public,
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]    --> src/ast.rs:274:18
[INFO] [stdout]     |
[INFO] [stdout] 274 |     let (_, v) = crate::parse::v1::flow_expression(s).map_err(|e| Error::FlowExpressionParse(e.to_string()))?;
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:107:3
[INFO] [stdout]     |
[INFO] [stdout] 107 |   unused_qualifications,
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]     |
[INFO] [stdout] 274 -     let (_, v) = crate::parse::v1::flow_expression(s).map_err(|e| Error::FlowExpressionParse(e.to_string()))?;
[INFO] [stdout] 274 +     let (_, v) = parse::v1::flow_expression(s).map_err(|e| Error::FlowExpressionParse(e.to_string()))?;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]    --> src/ast.rs:414:18
[INFO] [stdout]     |
[INFO] [stdout] 414 |     let (_, v) = crate::parse::v1::instance_port(s).map_err(|_e| Error::PortSyntax(s.to_owned()))?;
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]     |
[INFO] [stdout] 414 -     let (_, v) = crate::parse::v1::instance_port(s).map_err(|_e| Error::PortSyntax(s.to_owned()))?;
[INFO] [stdout] 414 +     let (_, v) = parse::v1::instance_port(s).map_err(|_e| Error::PortSyntax(s.to_owned()))?;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling hyper v0.14.32
[INFO] [stderr]    Compiling hyper-timeout v0.4.1
[INFO] [stderr]    Compiling tonic v0.8.3
[INFO] [stderr]    Compiling opentelemetry-proto v0.2.0
[INFO] [stderr]    Compiling opentelemetry-otlp v0.12.0
[INFO] [stderr]    Compiling wick-logger v0.4.0
[INFO] [stdout] warning: lint `private_in_public` has been removed: replaced with another group of lints, see RFC <https://rust-lang.github.io/rfcs/2145-type-privacy.html> for more information
[INFO] [stdout]   --> src/lib.rs:93:3
[INFO] [stdout]    |
[INFO] [stdout] 93 |   private_in_public,
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]    --> src/ast.rs:274:18
[INFO] [stdout]     |
[INFO] [stdout] 274 |     let (_, v) = crate::parse::v1::flow_expression(s).map_err(|e| Error::FlowExpressionParse(e.to_string()))?;
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:107:3
[INFO] [stdout]     |
[INFO] [stdout] 107 |   unused_qualifications,
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]     |
[INFO] [stdout] 274 -     let (_, v) = crate::parse::v1::flow_expression(s).map_err(|e| Error::FlowExpressionParse(e.to_string()))?;
[INFO] [stdout] 274 +     let (_, v) = parse::v1::flow_expression(s).map_err(|e| Error::FlowExpressionParse(e.to_string()))?;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]    --> src/ast.rs:414:18
[INFO] [stdout]     |
[INFO] [stdout] 414 |     let (_, v) = crate::parse::v1::instance_port(s).map_err(|_e| Error::PortSyntax(s.to_owned()))?;
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]     |
[INFO] [stdout] 414 -     let (_, v) = crate::parse::v1::instance_port(s).map_err(|_e| Error::PortSyntax(s.to_owned()))?;
[INFO] [stdout] 414 +     let (_, v) = parse::v1::instance_port(s).map_err(|_e| Error::PortSyntax(s.to_owned()))?;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `?` couldn't convert the error: `nom::Err<nom::error::Error<&str>>: StdError` is not satisfied
[INFO] [stdout]    --> src/parse/v1.rs:239:33
[INFO] [stdout]     |
[INFO] [stdout] 238 |   fn test_component_id(#[case] input: &'static str, #[case] expected: InstTgt) -> Result<()> {
[INFO] [stdout]     |                                                                                   ---------- required `nom::Err<nom::error::Error<&str>>: StdError` because of this
[INFO] [stdout] 239 |     let (i, t) = instance(input)?;
[INFO] [stdout]     |                  ---------------^ the trait `StdError` is not implemented for `nom::Err<nom::error::Error<&str>>`
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  this has type `Result<_, nom::Err<nom::error::Error<&str>>>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait
[INFO] [stdout]     = note: required for `anyhow::Error` to implement `From<nom::Err<nom::error::Error<&str>>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `?` couldn't convert the error: `nom::Err<nom::error::Error<&str>>: StdError` is not satisfied
[INFO] [stdout]    --> src/parse/v1.rs:258:39
[INFO] [stdout]     |
[INFO] [stdout] 257 |   fn path_tester(#[case] input: &'static str, #[case] expected: &str) -> Result<()> {
[INFO] [stdout]     |                                                                          ---------- required `nom::Err<nom::error::Error<&str>>: StdError` because of this
[INFO] [stdout] 258 |     let (i, t) = operation_path(input)?;
[INFO] [stdout]     |                  ---------------------^ the trait `StdError` is not implemented for `nom::Err<nom::error::Error<&str>>`
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  this has type `Result<_, nom::Err<nom::error::Error<&str>>>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait
[INFO] [stdout]     = note: required for `anyhow::Error` to implement `From<nom::Err<nom::error::Error<&str>>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `?` couldn't convert the error: `nom::Err<nom::error::Error<&str>>: StdError` is not satisfied
[INFO] [stdout]    --> src/parse/v1.rs:275:53
[INFO] [stdout]     |
[INFO] [stdout] 274 |   ) -> Result<()> {
[INFO] [stdout]     |        ---------- required `nom::Err<nom::error::Error<&str>>: StdError` because of this
[INFO] [stdout] 275 |     let (i, t) = connection_target_expression(input)?;
[INFO] [stdout]     |                  -----------------------------------^ the trait `StdError` is not implemented for `nom::Err<nom::error::Error<&str>>`
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  this has type `Result<_, nom::Err<nom::error::Error<&str>>>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait
[INFO] [stdout]     = note: required for `anyhow::Error` to implement `From<nom::Err<nom::error::Error<&str>>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `?` couldn't convert the error: `nom::Err<nom::error::Error<&str>>: StdError` is not satisfied
[INFO] [stdout]    --> src/parse/v1.rs:287:43
[INFO] [stdout]     |
[INFO] [stdout] 286 |   fn test_instance_port(#[case] input: &'static str, #[case] expected: InstancePort) -> Result<()> {
[INFO] [stdout]     |                                                                                         ---------- required `nom::Err<nom::error::Error<&str>>: StdError` because of this
[INFO] [stdout] 287 |     let (i, actual) = instance_port(input)?;
[INFO] [stdout]     |                       --------------------^ the trait `StdError` is not implemented for `nom::Err<nom::error::Error<&str>>`
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       this has type `Result<_, nom::Err<nom::error::Error<&str>>>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait
[INFO] [stdout]     = note: required for `anyhow::Error` to implement `From<nom::Err<nom::error::Error<&str>>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `?` couldn't convert the error: `nom::Err<nom::error::Error<&str>>: StdError` is not satisfied
[INFO] [stdout]    --> src/parse/v1.rs:308:55
[INFO] [stdout]     |
[INFO] [stdout] 307 |   ) -> Result<()> {
[INFO] [stdout]     |        ---------- required `nom::Err<nom::error::Error<&str>>: StdError` because of this
[INFO] [stdout] 308 |     let (i, t) = connection_expression_sequence(input)?;
[INFO] [stdout]     |                  -------------------------------------^ the trait `StdError` is not implemented for `nom::Err<nom::error::Error<&str>>`
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  this has type `Result<_, nom::Err<nom::error::Error<&str>>>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait
[INFO] [stdout]     = note: required for `anyhow::Error` to implement `From<nom::Err<nom::error::Error<&str>>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `?` couldn't convert the error: `nom::Err<nom::error::Error<&str>>: StdError` is not satisfied
[INFO] [stdout]    --> src/parse/v1.rs:417:47
[INFO] [stdout]     |
[INFO] [stdout] 415 |     fn test_flow_expression(#[case] input: &'static str, #[case] expected: FE) -> Result<()> {
[INFO] [stdout]     |                                                                                   ---------- required `nom::Err<nom::error::Error<&str>>: StdError` because of this
[INFO] [stdout] 416 |       set_seed(0);
[INFO] [stdout] 417 |       let (t, actual) = flow_expression(input)?;
[INFO] [stdout]     |                         ----------------------^ the trait `StdError` is not implemented for `nom::Err<nom::error::Error<&str>>`
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         this has type `Result<_, nom::Err<nom::error::Error<&str>>>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait
[INFO] [stdout]     = note: required for `anyhow::Error` to implement `From<nom::Err<nom::error::Error<&str>>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `flow-expression-parser` (lib test) due to 6 previous errors; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "6997b102a97fa576e50220dcbf630ae2a957923cdec824df72d68ce0fdf0e628", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6997b102a97fa576e50220dcbf630ae2a957923cdec824df72d68ce0fdf0e628", kill_on_drop: false }`
[INFO] [stdout] 6997b102a97fa576e50220dcbf630ae2a957923cdec824df72d68ce0fdf0e628
