[INFO] fetching crate ex3-ic-agent 0.24.1...
[INFO] testing ex3-ic-agent-0.24.1 against 1.98.0-beta.1 for beta-1.98-2
[INFO] extracting crate ex3-ic-agent 0.24.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate ex3-ic-agent 0.24.1
[INFO] finished tweaking crates.io crate ex3-ic-agent 0.24.1
[INFO] tweaked toml for crates.io crate ex3-ic-agent 0.24.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ex3-ic-agent 0.24.1 on toolchain 1.98.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.98.0-beta.1" "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" "+1.98.0-beta.1" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 296 packages to latest compatible versions
[INFO] [stderr]       Adding base32 v0.4.0 (available: v0.5.1)
[INFO] [stderr]       Adding candid v0.8.4 (available: v0.10.32)
[INFO] [stderr]       Adding crypto-common v0.1.6 (available: v0.1.7)
[INFO] [stderr]       Adding getrandom v0.2.17 (available: v0.4.3)
[INFO] [stderr]       Adding http v0.2.12 (available: v1.4.2)
[INFO] [stderr]       Adding http-body v0.4.6 (available: v1.1.0)
[INFO] [stderr]       Adding hyper v0.14.32 (available: v1.10.1)
[INFO] [stderr]       Adding hyper-rustls v0.24.0 (available: v0.24.2)
[INFO] [stderr]       Adding ic-certification v0.24.1 (available: v3.2.0)
[INFO] [stderr]       Adding ic-verify-bls-signature v0.1.0 (available: v0.6.0)
[INFO] [stderr]       Adding k256 v0.13.4 (available: v0.14.0)
[INFO] [stderr]       Adding pem v2.0.1 (available: v3.0.6)
[INFO] [stderr]       Adding pkcs8 v0.10.2 (available: v0.11.0)
[INFO] [stderr]       Adding rand v0.8.7 (available: v0.10.2)
[INFO] [stderr]       Adding reqwest v0.11.18 (available: v0.11.27)
[INFO] [stderr]       Adding ring v0.16.20 (available: v0.17.14)
[INFO] [stderr]       Adding rustls v0.21.1 (available: v0.21.12)
[INFO] [stderr]       Adding sec1 v0.7.3 (available: v0.8.1)
[INFO] [stderr]       Adding sha2 v0.10.9 (available: v0.11.0)
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.18)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.98.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3d5ced03c013a94a2f102a4510f48a6e9184255caf5fd8244f58017bde7f5210" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 8e03f57be8f81e77f66580334d247b1935429c3a244db402f726fd5781246e93
[INFO] running `Command { std: "docker" "start" "8e03f57be8f81e77f66580334d247b1935429c3a244db402f726fd5781246e93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8e03f57be8f81e77f66580334d247b1935429c3a244db402f726fd5781246e93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "8e03f57be8f81e77f66580334d247b1935429c3a244db402f726fd5781246e93" "/opt/rustwide/cargo-home/bin/cargo" "+1.98.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8e03f57be8f81e77f66580334d247b1935429c3a244db402f726fd5781246e93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "8e03f57be8f81e77f66580334d247b1935429c3a244db402f726fd5781246e93" "/opt/rustwide/cargo-home/bin/cargo" "+1.98.0-beta.1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling zeroize v1.9.0
[INFO] [stderr]    Compiling typenum v1.20.1
[INFO] [stderr]    Compiling subtle v2.6.1
[INFO] [stderr]    Compiling generic-array v0.14.9
[INFO] [stderr]    Compiling cc v1.2.67
[INFO] [stderr]    Compiling memchr v2.8.3
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling bytes v1.12.1
[INFO] [stderr]    Compiling syn v2.0.118
[INFO] [stderr]    Compiling getrandom v0.2.17
[INFO] [stderr]    Compiling errno v0.3.14
[INFO] [stderr]    Compiling base64ct v1.8.3
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling socket2 v0.6.5
[INFO] [stderr]    Compiling mio v1.2.2
[INFO] [stderr]    Compiling regex-syntax v0.8.11
[INFO] [stderr]    Compiling signal-hook-registry v1.4.8
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling either v1.16.0
[INFO] [stderr]    Compiling untrusted v0.7.1
[INFO] [stderr]    Compiling crunchy v0.2.4
[INFO] [stderr]    Compiling pem-rfc7468 v0.7.0
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling dirs-next v2.0.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling zerocopy v0.8.54
[INFO] [stderr]    Compiling der v0.7.10
[INFO] [stderr]    Compiling siphasher v1.0.3
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling regex-syntax v0.6.29
[INFO] [stderr]    Compiling phf_shared v0.11.3
[INFO] [stderr]    Compiling http v0.2.12
[INFO] [stderr]    Compiling term v0.7.0
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.6
[INFO] [stderr]    Compiling winnow v0.5.40
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling fixedbitset v0.4.2
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling rustls v0.21.1
[INFO] [stderr]    Compiling string_cache v0.8.9
[INFO] [stderr]    Compiling bit-set v0.5.3
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling petgraph v0.6.5
[INFO] [stderr]    Compiling ascii-canvas v3.0.0
[INFO] [stderr]    Compiling spki v0.7.3
[INFO] [stderr]    Compiling pkcs8 v0.10.2
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling ff v0.13.1
[INFO] [stderr]    Compiling ff v0.12.1
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling ring v0.17.14
[INFO] [stderr]    Compiling ena v0.14.4
[INFO] [stderr]    Compiling is-terminal v0.4.17
[INFO] [stderr]    Compiling diff v0.1.13
[INFO] [stderr]    Compiling base16ct v0.2.0
[INFO] [stderr]    Compiling zmij v1.0.23
[INFO] [stderr]    Compiling unicode-xid v0.2.6
[INFO] [stderr]    Compiling regex-automata v0.4.15
[INFO] [stderr]    Compiling rustversion v1.0.23
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling sec1 v0.7.3
[INFO] [stderr]    Compiling http-body v0.4.6
[INFO] [stderr]    Compiling group v0.12.1
[INFO] [stderr]    Compiling toml_edit v0.19.15
[INFO] [stderr]    Compiling group v0.13.0
[INFO] [stderr]    Compiling sha2 v0.10.9
[INFO] [stderr]    Compiling hmac v0.12.1
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling crypto-bigint v0.5.5
[INFO] [stderr]    Compiling rustls-pemfile v1.0.4
[INFO] [stderr]    Compiling futures-channel v0.3.32
[INFO] [stderr]    Compiling socket2 v0.5.10
[INFO] [stderr]    Compiling time-core v0.1.9
[INFO] [stderr]    Compiling num-conv v0.2.2
[INFO] [stderr]    Compiling openssl-probe v0.1.6
[INFO] [stderr]    Compiling beef v0.5.2
[INFO] [stderr]    Compiling thiserror v2.0.18
[INFO] [stderr]    Compiling serde_json v1.0.150
[INFO] [stderr]    Compiling rfc6979 v0.4.0
[INFO] [stderr]    Compiling time-macros v0.2.31
[INFO] [stderr]    Compiling rustls-native-certs v0.6.3
[INFO] [stderr]    Compiling pairing v0.22.0
[INFO] [stderr]    Compiling signature v2.2.0
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling serde_bytes v0.11.19
[INFO] [stderr]    Compiling typed-arena v2.0.2
[INFO] [stderr]    Compiling synstructure v0.13.2
[INFO] [stderr]    Compiling deranged v0.5.8
[INFO] [stderr]    Compiling unicode-width v0.1.14
[INFO] [stderr]    Compiling elliptic-curve v0.13.8
[INFO] [stderr]    Compiling arrayvec v0.5.2
[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/1.98.0-beta.1-x86_64-unknown-linux-gnu/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.118/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="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=490b0de52fd23e67 -C extra-filename=-9f40b2588b2f801f --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-154be7f81f34ed1b.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-0f644fef5173fe30.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-86faa6b6bcc5b157.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" "8e03f57be8f81e77f66580334d247b1935429c3a244db402f726fd5781246e93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e03f57be8f81e77f66580334d247b1935429c3a244db402f726fd5781246e93", kill_on_drop: false }`
[INFO] [stdout] 8e03f57be8f81e77f66580334d247b1935429c3a244db402f726fd5781246e93