[INFO] fetching crate process_mining 0.3.25...
[INFO] building process_mining-0.3.25 against master#44f415c1d617ebc7b931a243b7b321ef8a6ca47c for pr-142134-abi-ast-error
[INFO] extracting crate process_mining 0.3.25 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate process_mining 0.3.25 on toolchain 44f415c1d617ebc7b931a243b7b321ef8a6ca47c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate process_mining 0.3.25
[INFO] finished tweaking crates.io crate process_mining 0.3.25
[INFO] tweaked toml for crates.io crate process_mining 0.3.25 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate process_mining 0.3.25 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" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded uuid v1.13.2
[INFO] [stderr]   Downloaded polars-error v0.46.0
[INFO] [stderr]   Downloaded polars-time v0.46.0
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[INFO] [stderr]   Downloaded graphviz-rust v0.9.3
[INFO] [stderr]   Downloaded polars-json v0.46.0
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[INFO] [stderr]   Downloaded polars-core v0.46.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3ddd8d2ee39a9581d4bdd9212ad115fa233c4d7592e0413f31ad202220b58d99
[INFO] running `Command { std: "docker" "start" "-a" "3ddd8d2ee39a9581d4bdd9212ad115fa233c4d7592e0413f31ad202220b58d99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3ddd8d2ee39a9581d4bdd9212ad115fa233c4d7592e0413f31ad202220b58d99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ddd8d2ee39a9581d4bdd9212ad115fa233c4d7592e0413f31ad202220b58d99", kill_on_drop: false }`
[INFO] [stdout] 3ddd8d2ee39a9581d4bdd9212ad115fa233c4d7592e0413f31ad202220b58d99
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8e544c7b0c39f386543d44dd73499d4b5375f9ad916a1b7db327bfc9e03935ca
[INFO] running `Command { std: "docker" "start" "-a" "8e544c7b0c39f386543d44dd73499d4b5375f9ad916a1b7db327bfc9e03935ca", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling unicode-ident v1.0.13
[INFO] [stderr]    Compiling serde v1.0.210
[INFO] [stderr]    Compiling crossbeam-utils v0.8.20
[INFO] [stderr]    Compiling strsim v0.11.1
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling getrandom v0.3.1
[INFO] [stderr]    Compiling hashbrown v0.15.0
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling serde_json v1.0.128
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling adler2 v2.0.0
[INFO] [stderr]    Compiling crc32fast v1.4.2
[INFO] [stderr]    Compiling ryu v1.0.18
[INFO] [stderr]    Compiling iana-time-zone v0.1.61
[INFO] [stderr]    Compiling itoa v1.0.11
[INFO] [stderr]    Compiling fixedbitset v0.4.2
[INFO] [stderr]    Compiling miniz_oxide v0.8.0
[INFO] [stderr]    Compiling either v1.13.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling quick-xml v0.31.0
[INFO] [stderr]    Compiling flate2 v1.0.34
[INFO] [stderr]    Compiling indexmap v2.6.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling crossbeam-deque v0.8.5
[INFO] [stderr]    Compiling syn v2.0.98
[INFO] [stderr]    Compiling petgraph v0.6.5
[INFO] [stderr]    Compiling rayon v1.10.0
[INFO] [stderr]    Compiling ordered-float v4.6.0
[INFO] [stderr]    Compiling darling_core v0.20.10
[INFO] [stderr]    Compiling serde_derive v1.0.210
[INFO] [stderr]    Compiling darling_macro v0.20.10
[INFO] [stderr]    Compiling darling v0.20.10
[INFO] [stderr]    Compiling serde_with_macros v3.11.0
[INFO] [stderr]    Compiling chrono v0.4.39
[INFO] [stderr]    Compiling serde_with v3.11.0
[INFO] [stderr]    Compiling uuid v1.13.2
[INFO] [stderr]    Compiling process_mining v0.3.25 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 22.02s
[INFO] running `Command { std: "docker" "inspect" "8e544c7b0c39f386543d44dd73499d4b5375f9ad916a1b7db327bfc9e03935ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e544c7b0c39f386543d44dd73499d4b5375f9ad916a1b7db327bfc9e03935ca", kill_on_drop: false }`
[INFO] [stdout] 8e544c7b0c39f386543d44dd73499d4b5375f9ad916a1b7db327bfc9e03935ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 74984f7dfd527922bd6d88255e37c5d415ba98c4ca8085ac3187479ed5c941e1
[INFO] running `Command { std: "docker" "start" "-a" "74984f7dfd527922bd6d88255e37c5d415ba98c4ca8085ac3187479ed5c941e1", kill_on_drop: false }`
[INFO] [stderr]    Compiling process_mining v0.3.25 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `graph`
[INFO] [stdout]    --> src/dfg/dfg_struct.rs:318:13
[INFO] [stdout]     |
[INFO] [stdout] 318 |         let graph = DirectlyFollowsGraph::create_from_log(&log, classifier);
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_graph`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `graph`
[INFO] [stdout]    --> src/dfg/dfg_struct.rs:352:13
[INFO] [stdout]     |
[INFO] [stdout] 352 |         let graph = DirectlyFollowsGraph::create_from_log(&log, &EventLogClassifier::default());
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_graph`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 7.53s
[INFO] running `Command { std: "docker" "inspect" "74984f7dfd527922bd6d88255e37c5d415ba98c4ca8085ac3187479ed5c941e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74984f7dfd527922bd6d88255e37c5d415ba98c4ca8085ac3187479ed5c941e1", kill_on_drop: false }`
[INFO] [stdout] 74984f7dfd527922bd6d88255e37c5d415ba98c4ca8085ac3187479ed5c941e1