[INFO] fetching crate cardinality-estimator-safe 4.0.2...
[INFO] testing cardinality-estimator-safe-4.0.2 against master#d933cf483edf1605142ac6899ff32536c0ad8b22 for pr-150933
[INFO] extracting crate cardinality-estimator-safe 4.0.2 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate cardinality-estimator-safe 4.0.2
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate cardinality-estimator-safe 4.0.2
[INFO] tweaked toml for crates.io crate cardinality-estimator-safe 4.0.2 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate cardinality-estimator-safe 4.0.2 on toolchain d933cf483edf1605142ac6899ff32536c0ad8b22
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d933cf483edf1605142ac6899ff32536c0ad8b22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate cardinality-estimator-safe 4.0.2 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" "+d933cf483edf1605142ac6899ff32536c0ad8b22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tabled_derive v0.7.0
[INFO] [stderr]   Downloaded wyhash v0.5.0
[INFO] [stderr]   Downloaded papergrid v0.11.0
[INFO] [stderr]   Downloaded rand_xorshift v0.2.0
[INFO] [stderr]   Downloaded str_stack v0.1.0
[INFO] [stderr]   Downloaded probabilistic-collections v0.7.0
[INFO] [stderr]   Downloaded serde_closure_derive v0.3.3
[INFO] [stderr]   Downloaded serde_closure v0.3.3
[INFO] [stderr]   Downloaded symbolic-common v12.15.3
[INFO] [stderr]   Downloaded thousands v0.2.0
[INFO] [stderr]   Downloaded mintex v0.1.3
[INFO] [stderr]   Downloaded dhat v0.3.3
[INFO] [stderr]   Downloaded findshlibs v0.10.2
[INFO] [stderr]   Downloaded rgb v0.8.50
[INFO] [stderr]   Downloaded amadeus-streaming v0.4.3
[INFO] [stderr]   Downloaded num-format v0.4.4
[INFO] [stderr]   Downloaded protobuf-codegen-pure v2.28.0
[INFO] [stderr]   Downloaded cpp_demangle v0.4.4
[INFO] [stderr]   Downloaded hyperloglog v1.0.2
[INFO] [stderr]   Downloaded cc v1.2.19
[INFO] [stderr]   Downloaded inferno v0.11.21
[INFO] [stderr]   Downloaded symbolic-demangle v12.15.3
[INFO] [stderr]   Downloaded tabled v0.15.0
[INFO] [stderr]   Downloaded hyperloglogplus v0.4.1
[INFO] [stderr]   Downloaded protobuf-codegen v2.28.0
[INFO] [stderr]   Downloaded pprof v0.14.0
[INFO] [stderr]   Downloaded cardinality-estimator v1.0.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+d933cf483edf1605142ac6899ff32536c0ad8b22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b385dc463fac50db2b27b2fe87cc4da066c97ea3ec980033e85ad364b256ea73
[INFO] running `Command { std: "docker" "start" "-a" "b385dc463fac50db2b27b2fe87cc4da066c97ea3ec980033e85ad364b256ea73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b385dc463fac50db2b27b2fe87cc4da066c97ea3ec980033e85ad364b256ea73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b385dc463fac50db2b27b2fe87cc4da066c97ea3ec980033e85ad364b256ea73", kill_on_drop: false }`
[INFO] [stdout] b385dc463fac50db2b27b2fe87cc4da066c97ea3ec980033e85ad364b256ea73
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+d933cf483edf1605142ac6899ff32536c0ad8b22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7d3dc13a54d8f46edafdb9aa2e65a824e7dd5a65d07ff31f83fda9ad9c6d99b2
[INFO] running `Command { std: "docker" "start" "-a" "7d3dc13a54d8f46edafdb9aa2e65a824e7dd5a65d07ff31f83fda9ad9c6d99b2", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling enum_dispatch v0.3.13
[INFO] [stderr]    Compiling cardinality-estimator-safe v4.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.40s
[INFO] running `Command { std: "docker" "inspect" "7d3dc13a54d8f46edafdb9aa2e65a824e7dd5a65d07ff31f83fda9ad9c6d99b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d3dc13a54d8f46edafdb9aa2e65a824e7dd5a65d07ff31f83fda9ad9c6d99b2", kill_on_drop: false }`
[INFO] [stdout] 7d3dc13a54d8f46edafdb9aa2e65a824e7dd5a65d07ff31f83fda9ad9c6d99b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+d933cf483edf1605142ac6899ff32536c0ad8b22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e0ae51dd7858e30a81bb55dd54d2cbc9aea522a4ed2d46c5af1475e88da8796f
[INFO] running `Command { std: "docker" "start" "-a" "e0ae51dd7858e30a81bb55dd54d2cbc9aea522a4ed2d46c5af1475e88da8796f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.171
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling zerocopy v0.8.24
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling semver v1.0.26
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling protobuf v2.28.0
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling cc v1.2.19
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]    Compiling half v2.6.0
[INFO] [stderr]    Compiling adler2 v2.0.0
[INFO] [stderr]    Compiling getrandom v0.3.2
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling clap_lex v0.7.4
[INFO] [stderr]    Compiling cpp_demangle v0.4.4
[INFO] [stderr]    Compiling rustc-demangle v0.1.24
[INFO] [stderr]    Compiling anstyle v1.0.10
[INFO] [stderr]    Compiling uuid v1.16.0
[INFO] [stderr]    Compiling rustix v1.0.5
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]    Compiling smallvec v1.15.0
[INFO] [stderr]    Compiling ciborium-ll v0.2.2
[INFO] [stderr]    Compiling clap_builder v4.5.36
[INFO] [stderr]    Compiling debugid v0.8.0
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling miniz_oxide v0.8.8
[INFO] [stderr]    Compiling object v0.36.7
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling serde_closure v0.3.3
[INFO] [stderr]    Compiling equator-macro v0.4.2
[INFO] [stderr]    Compiling heapless v0.7.17
[INFO] [stderr]    Compiling symbolic-demangle v12.15.3
[INFO] [stderr]    Compiling bytemuck v1.22.0
[INFO] [stderr]    Compiling bytecount v0.6.8
[INFO] [stderr]    Compiling hashbrown v0.15.2
[INFO] [stderr]    Compiling bitflags v2.9.0
[INFO] [stderr]    Compiling zerocopy v0.7.35
[INFO] [stderr]    Compiling rayon v1.10.0
[INFO] [stderr]    Compiling rgb v0.8.50
[INFO] [stderr]    Compiling indexmap v2.9.0
[INFO] [stderr]    Compiling plotters v0.3.7
[INFO] [stderr]    Compiling equator v0.4.2
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling is-terminal v0.4.16
[INFO] [stderr]    Compiling findshlibs v0.10.2
[INFO] [stderr]    Compiling memmap2 v0.9.5
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling parking_lot v0.12.3
[INFO] [stderr]    Compiling symbolic-common v12.15.3
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling num-format v0.4.4
[INFO] [stderr]    Compiling hash32 v0.2.1
[INFO] [stderr]    Compiling amadeus-streaming v0.4.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling quick-xml v0.26.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr] error: could not compile `syn` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/d933cf483edf1605142ac6899ff32536c0ad8b22/bin/rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-1.0.109/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit-mut"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("clone-impls", "default", "derive", "extra-traits", "fold", "full", "parsing", "printing", "proc-macro", "quote", "test", "visit", "visit-mut"))' -C metadata=128d3adbaaaa220c -C extra-filename=-b5162794509033ed --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-fc1fd0f4d59463bc.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-bc6b090314aa3ed5.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-b3925cc8f83e9ac1.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "e0ae51dd7858e30a81bb55dd54d2cbc9aea522a4ed2d46c5af1475e88da8796f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0ae51dd7858e30a81bb55dd54d2cbc9aea522a4ed2d46c5af1475e88da8796f", kill_on_drop: false }`
[INFO] [stdout] e0ae51dd7858e30a81bb55dd54d2cbc9aea522a4ed2d46c5af1475e88da8796f