[INFO] fetching crate ion-rs 1.0.0-rc.11...
[INFO] testing ion-rs-1.0.0-rc.11 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate ion-rs 1.0.0-rc.11 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate ion-rs 1.0.0-rc.11
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate ion-rs 1.0.0-rc.11
[INFO] tweaked toml for crates.io crate ion-rs 1.0.0-rc.11 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ion-rs 1.0.0-rc.11 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] crate crates.io crate ion-rs 1.0.0-rc.11 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" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 789fddf8c7f7bf1776a99b331b6e59f3ce610ec4f36e5658f1363d8c4371c0c0
[INFO] running `Command { std: "docker" "start" "-a" "789fddf8c7f7bf1776a99b331b6e59f3ce610ec4f36e5658f1363d8c4371c0c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "789fddf8c7f7bf1776a99b331b6e59f3ce610ec4f36e5658f1363d8c4371c0c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "789fddf8c7f7bf1776a99b331b6e59f3ce610ec4f36e5658f1363d8c4371c0c0", kill_on_drop: false }`
[INFO] [stdout] 789fddf8c7f7bf1776a99b331b6e59f3ce610ec4f36e5658f1363d8c4371c0c0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 7bab203f448730c117c47f5a613e5ac03216cb2c19b279110062b1526d33c793
[INFO] running `Command { std: "docker" "start" "-a" "7bab203f448730c117c47f5a613e5ac03216cb2c19b279110062b1526d33c793", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.89
[INFO] [stderr]    Compiling unicode-ident v1.0.13
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling siphasher v0.3.11
[INFO] [stderr]    Compiling rustversion v1.0.18
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling thiserror v1.0.68
[INFO] [stderr]    Compiling itoa v1.0.11
[INFO] [stderr]    Compiling ryu v1.0.18
[INFO] [stderr]    Compiling iana-time-zone v0.1.61
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling arrayvec v0.7.6
[INFO] [stderr]    Compiling base64 v0.12.3
[INFO] [stderr]    Compiling bumpalo v3.16.0
[INFO] [stderr]    Compiling ice_code v0.1.4
[INFO] [stderr]    Compiling smallvec v1.13.2
[INFO] [stderr]    Compiling rustc-hash v2.0.0
[INFO] [stderr]    Compiling phf_shared v0.11.2
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling winnow v0.6.22
[INFO] [stderr]    Compiling phf_generator v0.11.2
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.87
[INFO] [stderr]    Compiling castaway v0.2.3
[INFO] [stderr]    Compiling compact_str v0.8.0
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling chrono v0.4.38
[INFO] [stderr]    Compiling thiserror-impl v1.0.68
[INFO] [stderr]    Compiling phf_macros v0.11.2
[INFO] [stderr]    Compiling delegate v0.12.0
[INFO] [stderr]    Compiling phf v0.11.2
[INFO] [stderr]    Compiling ion-rs v1.0.0-rc.11 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 48.54s
[INFO] running `Command { std: "docker" "inspect" "7bab203f448730c117c47f5a613e5ac03216cb2c19b279110062b1526d33c793", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bab203f448730c117c47f5a613e5ac03216cb2c19b279110062b1526d33c793", kill_on_drop: false }`
[INFO] [stdout] 7bab203f448730c117c47f5a613e5ac03216cb2c19b279110062b1526d33c793
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] ad2b02a83b4a6c06077b249e2ee23a0d23f7af5334f65b499f387cea533568df
[INFO] running `Command { std: "docker" "start" "-a" "ad2b02a83b4a6c06077b249e2ee23a0d23f7af5334f65b499f387cea533568df", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.161
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling semver v1.0.23
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling crossbeam-utils v0.8.20
[INFO] [stderr]    Compiling serde v1.0.214
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling futures-sink v0.3.31
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling pin-project-lite v0.2.15
[INFO] [stderr]    Compiling syn v2.0.87
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling futures-io v0.3.31
[INFO] [stderr]    Compiling serde_json v1.0.132
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling either v1.13.0
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling futures-task v0.3.31
[INFO] [stderr]    Compiling half v2.4.1
[INFO] [stderr]    Compiling glob v0.3.1
[INFO] [stderr]    Compiling ciborium-io v0.2.2
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling clap_lex v0.7.2
[INFO] [stderr]    Compiling anstyle v1.0.10
[INFO] [stderr]    Compiling plotters-backend v0.3.7
[INFO] [stderr]    Compiling rustix v0.38.39
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling ciborium-ll v0.2.2
[INFO] [stderr]    Compiling plotters-svg v0.3.7
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling clap_builder v4.5.20
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling rstest_macros v0.19.0
[INFO] [stderr]    Compiling rstest_reuse v0.6.0
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling crossbeam-deque v0.8.5
[INFO] [stderr]    Compiling cast v0.3.0
[INFO] [stderr]    Compiling linux-raw-sys v0.4.14
[INFO] [stderr]    Compiling regex-automata v0.4.8
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling once_cell v1.20.2
[INFO] [stderr]    Compiling bitflags v2.6.0
[INFO] [stderr]    Compiling relative-path v1.9.3
[INFO] [stderr]    Compiling walkdir v2.5.0
[INFO] [stderr]    Compiling is-terminal v0.4.13
[INFO] [stderr]    Compiling plotters v0.3.7
[INFO] [stderr]    Compiling winnow v0.6.22
[INFO] [stderr]    Compiling oorandom v11.1.4
[INFO] [stderr]    Compiling anes v0.1.6
[INFO] [stderr]    Compiling fastrand v2.1.1
[INFO] [stderr]    Compiling futures-timer v3.0.3
[INFO] [stderr]    Compiling rayon v1.10.0
[INFO] [stderr]    Compiling clap v4.5.20
[INFO] [stderr]    Compiling criterion-plot v0.5.0
[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/beta-2025-09-21-x86_64-unknown-linux-gnu/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.87/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C opt-level=2 -C embed-bitcode=no -C debug-assertions=on --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="visit"' --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", "test", "visit", "visit-mut"))' -C metadata=1859b3350b260e5c -C extra-filename=-55fbc57d5469b012 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-4364ea8229073c70.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-0d5d5964bf8464ce.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-b6b70daca8c852b1.rmeta --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "ad2b02a83b4a6c06077b249e2ee23a0d23f7af5334f65b499f387cea533568df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad2b02a83b4a6c06077b249e2ee23a0d23f7af5334f65b499f387cea533568df", kill_on_drop: false }`
[INFO] [stdout] ad2b02a83b4a6c06077b249e2ee23a0d23f7af5334f65b499f387cea533568df
