[INFO] fetching crate rudric 0.1.7...
[INFO] testing rudric-0.1.7 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate rudric 0.1.7 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate rudric 0.1.7
[INFO] finished tweaking crates.io crate rudric 0.1.7
[INFO] tweaked toml for crates.io crate rudric 0.1.7 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rudric 0.1.7 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rudric 0.1.7 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-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0f83d9fe7920c2fb0084eedeb6e10712fb546a16eb26e73674a8bd50e55527f3
[INFO] running `Command { std: "docker" "start" "-a" "0f83d9fe7920c2fb0084eedeb6e10712fb546a16eb26e73674a8bd50e55527f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0f83d9fe7920c2fb0084eedeb6e10712fb546a16eb26e73674a8bd50e55527f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f83d9fe7920c2fb0084eedeb6e10712fb546a16eb26e73674a8bd50e55527f3", kill_on_drop: false }`
[INFO] [stdout] 0f83d9fe7920c2fb0084eedeb6e10712fb546a16eb26e73674a8bd50e55527f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a4256d3152683f39a7f7f6eaee87d73008c50f85614429a21996236a63b46dc3
[INFO] running `Command { std: "docker" "start" "-a" "a4256d3152683f39a7f7f6eaee87d73008c50f85614429a21996236a63b46dc3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.76
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling memchr v2.6.4
[INFO] [stderr]    Compiling futures-core v0.3.29
[INFO] [stderr]    Compiling zerocopy v0.7.32
[INFO] [stderr]    Compiling serde v1.0.203
[INFO] [stderr]    Compiling allocator-api2 v0.2.16
[INFO] [stderr]    Compiling bitflags v2.4.1
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]    Compiling smallvec v1.11.2
[INFO] [stderr]    Compiling itoa v1.0.10
[INFO] [stderr]    Compiling linux-raw-sys v0.4.12
[INFO] [stderr]    Compiling futures-task v0.3.29
[INFO] [stderr]    Compiling thiserror v1.0.50
[INFO] [stderr]    Compiling serde_json v1.0.108
[INFO] [stderr]    Compiling futures-sink v0.3.29
[INFO] [stderr]    Compiling tinyvec v1.6.0
[INFO] [stderr]    Compiling powerfmt v0.2.0
[INFO] [stderr]    Compiling time-core v0.1.2
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]    Compiling num-conv v0.1.0
[INFO] [stderr]    Compiling ryu v1.0.15
[INFO] [stderr]    Compiling futures-util v0.3.29
[INFO] [stderr]    Compiling utf8parse v0.2.1
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling time-macros v0.2.18
[INFO] [stderr]    Compiling futures-channel v0.3.29
[INFO] [stderr]    Compiling unicode_categories v0.1.1
[INFO] [stderr]    Compiling deranged v0.3.10
[INFO] [stderr]    Compiling futures-io v0.3.29
[INFO] [stderr]    Compiling unicode-bidi v0.3.14
[INFO] [stderr]    Compiling crossbeam-queue v0.3.8
[INFO] [stderr]    Compiling cpufeatures v0.2.11
[INFO] [stderr]    Compiling getrandom v0.2.11
[INFO] [stderr]    Compiling paste v1.0.14
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling form_urlencoded v1.2.1
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling tracing-core v0.1.32
[INFO] [stderr]    Compiling pkg-config v0.3.27
[INFO] [stderr]    Compiling vcpkg v0.2.15
[INFO] [stderr]    Compiling log v0.4.20
[INFO] [stderr]    Compiling crc-catalog v2.4.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling rustix v0.38.31
[INFO] [stderr]    Compiling crc v3.0.1
[INFO] [stderr]    Compiling hashbrown v0.14.3
[INFO] [stderr]    Compiling unicode-normalization v0.1.22
[INFO] [stderr]    Compiling socket2 v0.5.5
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]    Compiling mio v0.8.10
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling event-listener v2.5.3
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling libsqlite3-sys v0.27.0
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling unicode-segmentation v1.10.1
[INFO] [stderr]    Compiling idna v0.5.0
[INFO] [stderr]    Compiling tokio v1.38.0
[INFO] [stderr]    Compiling flume v0.11.0
[INFO] [stderr]    Compiling sha2 v0.10.8
[INFO] [stderr]    Compiling futures-intrusive v0.5.0
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]    Compiling indexmap v2.1.0
[INFO] [stderr]    Compiling time v0.3.36
[INFO] [stderr]    Compiling atoi v2.0.0
[INFO] [stderr]    Compiling hashlink v0.8.4
[INFO] [stderr]    Compiling url v2.5.0
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling vte_generate_state_changes v0.1.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling uuid v1.8.0
[INFO] [stderr]    Compiling urlencoding v2.1.3
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling anstyle-parse v0.2.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling anstyle v1.0.4
[INFO] [stderr]    Compiling anstyle-query v1.0.2
[INFO] [stderr]    Compiling vte v0.10.1
[INFO] [stderr]    Compiling colorchoice v1.0.0
[INFO] [stderr]    Compiling cfg_aliases v0.1.1
[INFO] [stderr]    Compiling nix v0.28.0
[INFO] [stderr]    Compiling anstream v0.6.11
[INFO] [stderr]    Compiling futures-executor v0.3.29
[INFO] [stderr]    Compiling terminal_size v0.3.0
[INFO] [stderr]    Compiling strsim v0.11.0
[INFO] [stderr]    Compiling winnow v0.6.8
[INFO] [stderr]    Compiling clap_lex v0.7.0
[INFO] [stderr]    Compiling rust_decimal v1.33.1
[INFO] [stderr]    Compiling dotenvy v0.15.7
[INFO] [stderr]    Compiling aho-corasick v1.1.2
[INFO] [stderr]    Compiling thread_local v1.1.8
[INFO] [stderr]    Compiling clap_builder v4.5.7
[INFO] [stderr]    Compiling bytecount v0.6.7
[INFO] [stderr]    Compiling arrayvec v0.7.4
[INFO] [stderr]    Compiling anyhow v1.0.86
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling regex-syntax v0.8.2
[INFO] [stderr]    Compiling console v0.15.7
[INFO] [stderr]    Compiling fuzzy-matcher v0.3.7
[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-2026-04-21-x86_64-unknown-linux-gnu/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.48/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="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=478c15e24569edcb -C extra-filename=-bce618c488e1353a --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-ce36fa2bfe911962.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-22f65dc3a1b54c7b.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-472188a549d5cedb.rmeta --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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-2026-04-21-x86_64-unknown-linux-gnu/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"' --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=a327f0a557fbcf2e -C extra-filename=-6e0734af4473e7a1 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-ce36fa2bfe911962.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-22f65dc3a1b54c7b.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-472188a549d5cedb.rmeta --cap-lints allow --cap-lints=warn --cfg syn_disable_nightly_tests` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "a4256d3152683f39a7f7f6eaee87d73008c50f85614429a21996236a63b46dc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4256d3152683f39a7f7f6eaee87d73008c50f85614429a21996236a63b46dc3", kill_on_drop: false }`
[INFO] [stdout] a4256d3152683f39a7f7f6eaee87d73008c50f85614429a21996236a63b46dc3
