[INFO] fetching crate observation-tools 0.0.12...
[INFO] building observation-tools-0.0.12 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate observation-tools 0.0.12 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate observation-tools 0.0.12
[INFO] finished tweaking crates.io crate observation-tools 0.0.12
[INFO] tweaked toml for crates.io crate observation-tools 0.0.12 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate observation-tools 0.0.12 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 390 packages to latest compatible versions
[INFO] [stderr]       Adding async-channel v1.9.0 (available: v2.5.0)
[INFO] [stderr]       Adding base64 v0.21.7 (available: v0.22.1)
[INFO] [stderr]       Adding cached v0.48.1 (available: v0.56.0)
[INFO] [stderr]       Adding derive_builder v0.12.0 (available: v0.20.2)
[INFO] [stderr]       Adding env_logger v0.10.2 (available: v0.11.8)
[INFO] [stderr]       Adding image v0.24.9 (available: v0.25.8)
[INFO] [stderr]       Adding itertools v0.12.1 (available: v0.14.0)
[INFO] [stderr]       Adding keyring v2.3.3 (available: v3.6.3)
[INFO] [stderr]       Adding nalgebra v0.32.6 (available: v0.34.1)
[INFO] [stderr]       Adding oauth2 v4.4.2 (available: v5.0.0)
[INFO] [stderr]       Adding protobuf v3.2.0 (available: v3.7.2)
[INFO] [stderr]       Adding protobuf-codegen v3.2.0 (available: v3.7.2)
[INFO] [stderr]       Adding protobuf-parse v3.2.0 (available: v3.7.2)
[INFO] [stderr]       Adding protobuf-support v3.2.0 (available: v3.7.2)
[INFO] [stderr]       Adding reqwest v0.11.27 (available: v0.12.23)
[INFO] [stderr]       Adding serde v1.0.171 (available: v1.0.228)
[INFO] [stderr]       Adding serde_derive v1.0.171 (available: v1.0.228)
[INFO] [stderr]       Adding serde_json v1.0.109 (available: v1.0.145)
[INFO] [stderr]       Adding serde_path_to_error v0.1.14 (available: v0.1.20)
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.17)
[INFO] [stderr]       Adding time v0.3.26 (available: v0.3.44)
[INFO] [stderr]       Adding time-core v0.1.1 (available: v0.1.6)
[INFO] [stderr]       Adding time-macros v0.2.12 (available: v0.2.24)
[INFO] [stderr]       Adding wasm-bindgen-derive v0.2.1 (available: v0.3.0)
[INFO] [stderr]       Adding zvariant_utils v1.0.1 (available: v1.1.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded protobuf-parse v3.2.0
[INFO] [stderr]   Downloaded time-core v0.1.1
[INFO] [stderr]   Downloaded wasm-bindgen-derive-macro v0.2.1
[INFO] [stderr]   Downloaded time-macros v0.2.12
[INFO] [stderr]   Downloaded serde_derive v1.0.171
[INFO] [stderr]   Downloaded bit_field v0.10.3
[INFO] [stderr]   Downloaded cached_proc_macro v0.19.1
[INFO] [stderr]   Downloaded gif v0.13.3
[INFO] [stderr]   Downloaded cached v0.48.1
[INFO] [stderr]   Downloaded keyring v2.3.3
[INFO] [stderr]   Downloaded time v0.3.26
[INFO] [stderr]   Downloaded serde v1.0.171
[INFO] [stderr]   Downloaded async-signal v0.2.13
[INFO] [stderr]   Downloaded secret-service v3.1.0
[INFO] [stderr]   Downloaded protobuf v3.2.0
[INFO] [stderr]   Downloaded wasm-bindgen-derive v0.2.1
[INFO] [stderr]   Downloaded protobuf-codegen v3.2.0
[INFO] [stderr]   Downloaded custom_error v1.9.2
[INFO] [stderr]   Downloaded lebe v0.5.3
[INFO] [stderr]   Downloaded linux-keyutils v0.2.4
[INFO] [stderr]   Downloaded oauth2 v4.4.2
[INFO] [stderr]   Downloaded protobuf-support v3.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9ee06bdbb262a4627578f59dee6fbf4b1cacd3e4e4ff3509092b2039bb85af8c
[INFO] running `Command { std: "docker" "start" "-a" "9ee06bdbb262a4627578f59dee6fbf4b1cacd3e4e4ff3509092b2039bb85af8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9ee06bdbb262a4627578f59dee6fbf4b1cacd3e4e4ff3509092b2039bb85af8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ee06bdbb262a4627578f59dee6fbf4b1cacd3e4e4ff3509092b2039bb85af8c", kill_on_drop: false }`
[INFO] [stdout] 9ee06bdbb262a4627578f59dee6fbf4b1cacd3e4e4ff3509092b2039bb85af8c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1131b33c2985f1f38de9d4916470f162a6231da58eaf30f0e381c7eca118473d
[INFO] running `Command { std: "docker" "start" "-a" "1131b33c2985f1f38de9d4916470f162a6231da58eaf30f0e381c7eca118473d", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.171
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling serde_json v1.0.109
[INFO] [stderr]    Compiling serde_derive v1.0.171
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[INFO] [stderr]    Compiling tracing-attributes v0.1.30
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stderr]    Compiling toml_edit v0.19.15
[INFO] [stderr]    Compiling wasm-bindgen v0.2.104
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling icu_normalizer v2.0.0
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]    Compiling hashbrown v0.15.5
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.104
[INFO] [stderr]    Compiling ring v0.17.14
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling block-padding v0.3.3
[INFO] [stderr]    Compiling parking_lot v0.12.4
[INFO] [stderr]    Compiling enumflags2_derive v0.7.12
[INFO] [stderr]    Compiling polling v2.8.0
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling futures-lite v2.6.1
[INFO] [stderr]    Compiling idna_adapter v1.2.1
[INFO] [stderr]    Compiling tokio v1.47.1
[INFO] [stderr]    Compiling time-core v0.1.1
[INFO] [stderr]    Compiling bytemuck v1.23.2
[INFO] [stderr]    Compiling rustix v0.37.28
[INFO] [stderr]    Compiling time-macros v0.2.12
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling idna v1.1.0
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling inout v0.1.4
[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]    Compiling async-lock v2.8.0
[INFO] [stderr]    Compiling num-complex v0.4.6
[INFO] [stderr]    Compiling socket2 v0.5.10
[INFO] [stderr]    Compiling rustls-webpki v0.101.7
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.104
[INFO] [stderr]    Compiling sct v0.7.1
[INFO] [stderr]    Compiling async-fs v1.6.0
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling cookie v0.17.0
[INFO] [stderr]    Compiling async-io v1.13.0
[INFO] [stderr]    Compiling deranged v0.3.11
[INFO] [stderr]    Compiling regex-automata v0.4.11
[INFO] [stderr]    Compiling linux-raw-sys v0.3.8
[INFO] [stderr]    Compiling native-tls v0.2.14
[INFO] [stderr]    Compiling proc-macro-crate v1.3.1
[INFO] [stderr]    Compiling num-rational v0.4.2
[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/c7f6aa2869acdbf014d094c6e427e554e160b6db/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="extra-traits"' --cfg 'feature="fold"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' --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=31890f87bf4acee8 -C extra-filename=-4b6bc6382a3cc51c --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-7a2436df3ae454d4.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-0de5fe2fc9d60ab7.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-6ac3b87590d2322c.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `futures-util` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/c7f6aa2869acdbf014d094c6e427e554e160b6db/bin/rustc --crate-name futures_util --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/futures-util-0.3.31/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 -C debuginfo=2 --warn=unreachable_pub --warn=unexpected_cfgs --warn=single_use_lifetimes --warn=rust_2018_idioms --warn=missing_debug_implementations --check-cfg 'cfg(futures_sanitizer)' --cfg 'feature="alloc"' --cfg 'feature="async-await"' --cfg 'feature="async-await-macro"' --cfg 'feature="channel"' --cfg 'feature="default"' --cfg 'feature="futures-channel"' --cfg 'feature="futures-io"' --cfg 'feature="futures-macro"' --cfg 'feature="futures-sink"' --cfg 'feature="io"' --cfg 'feature="memchr"' --cfg 'feature="sink"' --cfg 'feature="slab"' --cfg 'feature="std"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("alloc", "async-await", "async-await-macro", "bilock", "cfg-target-has-atomic", "channel", "compat", "default", "futures-channel", "futures-io", "futures-macro", "futures-sink", "futures_01", "io", "io-compat", "memchr", "portable-atomic", "sink", "slab", "std", "tokio-io", "unstable", "write-all-vectored"))' -C metadata=c4f602472e764a6e -C extra-filename=-33256f687d120227 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern futures_channel=/opt/rustwide/target/debug/deps/libfutures_channel-f26d4826b597103e.rmeta --extern futures_core=/opt/rustwide/target/debug/deps/libfutures_core-fc6bb1738f00fc87.rmeta --extern futures_io=/opt/rustwide/target/debug/deps/libfutures_io-972ebb79349338ae.rmeta --extern futures_macro=/opt/rustwide/target/debug/deps/libfutures_macro-7e8f62974fe65e43.so --extern futures_sink=/opt/rustwide/target/debug/deps/libfutures_sink-be8442ee548d90f9.rmeta --extern futures_task=/opt/rustwide/target/debug/deps/libfutures_task-19b3aba2be9e7ae8.rmeta --extern memchr=/opt/rustwide/target/debug/deps/libmemchr-f9c66c7ba21bf873.rmeta --extern pin_project_lite=/opt/rustwide/target/debug/deps/libpin_project_lite-bedc6e0acd72ff2a.rmeta --extern pin_utils=/opt/rustwide/target/debug/deps/libpin_utils-9a5791cba021167a.rmeta --extern slab=/opt/rustwide/target/debug/deps/libslab-8c0cbfb396425d81.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "1131b33c2985f1f38de9d4916470f162a6231da58eaf30f0e381c7eca118473d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1131b33c2985f1f38de9d4916470f162a6231da58eaf30f0e381c7eca118473d", kill_on_drop: false }`
[INFO] [stdout] 1131b33c2985f1f38de9d4916470f162a6231da58eaf30f0e381c7eca118473d