[INFO] fetching crate sl-hello-goodbye 0.4.2...
[INFO] testing sl-hello-goodbye-0.4.2 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate sl-hello-goodbye 0.4.2 into /workspace/builds/worker-2-tc2/source
[INFO] removed /workspace/builds/worker-2-tc2/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate sl-hello-goodbye 0.4.2
[INFO] finished tweaking crates.io crate sl-hello-goodbye 0.4.2
[INFO] tweaked toml for crates.io crate sl-hello-goodbye 0.4.2 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate sl-hello-goodbye 0.4.2 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 sl-hello-goodbye 0.4.2 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" "+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-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9314a6ffdfaa2b1cb6968a430a7859dd18f9904a54ac7311fe24e515b7759bc3
[INFO] running `Command { std: "docker" "start" "-a" "9314a6ffdfaa2b1cb6968a430a7859dd18f9904a54ac7311fe24e515b7759bc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9314a6ffdfaa2b1cb6968a430a7859dd18f9904a54ac7311fe24e515b7759bc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9314a6ffdfaa2b1cb6968a430a7859dd18f9904a54ac7311fe24e515b7759bc3", kill_on_drop: false }`
[INFO] [stdout] 9314a6ffdfaa2b1cb6968a430a7859dd18f9904a54ac7311fe24e515b7759bc3
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e304ba08ce64ee2104004297dff3ee72aa1d93f914d65e8527577098eff63fef
[INFO] running `Command { std: "docker" "start" "-a" "e304ba08ce64ee2104004297dff3ee72aa1d93f914d65e8527577098eff63fef", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.24
[INFO] [stderr]    Compiling parking v2.2.1
[INFO] [stderr]    Compiling winnow v1.0.1
[INFO] [stderr]    Compiling hashbrown v0.16.1
[INFO] [stderr]    Compiling toml_datetime v1.1.1+spec-1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]    Compiling object v0.37.3
[INFO] [stderr]    Compiling winnow v0.7.15
[INFO] [stderr]    Compiling memchr v2.8.0
[INFO] [stderr]    Compiling cc v1.2.59
[INFO] [stderr]    Compiling futures-io v0.3.32
[INFO] [stderr]    Compiling concurrent-queue v2.5.0
[INFO] [stderr]    Compiling unicode-segmentation v1.13.2
[INFO] [stderr]    Compiling rustix v1.1.4
[INFO] [stderr]    Compiling errno v0.3.14
[INFO] [stderr]    Compiling endi v1.1.1
[INFO] [stderr]    Compiling semver v1.0.28
[INFO] [stderr]    Compiling linux-raw-sys v0.12.1
[INFO] [stderr]    Compiling futures-lite v2.6.1
[INFO] [stderr]    Compiling bitflags v2.11.0
[INFO] [stderr]    Compiling signal-hook-registry v1.4.8
[INFO] [stderr]    Compiling tracing-core v0.1.36
[INFO] [stderr]    Compiling convert_case v0.6.0
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]    Compiling async-io v2.6.0
[INFO] [stderr]    Compiling async-task v4.7.1
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling event-listener v5.4.1
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling uuid v1.23.0
[INFO] [stderr]    Compiling event-listener-strategy v0.5.4
[INFO] [stderr]    Compiling nutype_macros v0.6.2
[INFO] [stderr]    Compiling urlencoding v2.1.3
[INFO] [stderr]    Compiling async-channel v2.5.0
[INFO] [stderr]    Compiling foldhash v0.1.5
[INFO] [stderr]    Compiling time-core v0.1.8
[INFO] [stderr]    Compiling num-conv v0.2.1
[INFO] [stderr]    Compiling regex-syntax v0.8.10
[INFO] [stderr]    Compiling hashbrown v0.15.5
[INFO] [stderr]    Compiling piper v0.2.5
[INFO] [stderr]    Compiling async-lock v3.4.2
[INFO] [stderr]    Compiling lock_api v0.4.14
[INFO] [stderr]    Compiling time-macros v0.2.27
[INFO] [stderr]    Compiling indexmap v2.13.1
[INFO] [stderr]    Compiling inotify-sys v0.1.5
[INFO] [stderr]    Compiling adler2 v2.0.1
[INFO] [stderr]    Compiling gimli v0.32.3
[INFO] [stderr]    Compiling stacker v0.1.23
[INFO] [stderr]    Compiling anstyle v1.0.14
[INFO] [stderr]    Compiling colorchoice v1.0.5
[INFO] [stderr]    Compiling itoa v1.0.18
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling async-executor v1.14.0
[INFO] [stderr]    Compiling anstream v1.0.0
[INFO] [stderr]    Compiling blocking v1.6.2
[INFO] [stderr]    Compiling walkdir v2.5.0
[INFO] [stderr]    Compiling toml_parser v1.1.2+spec-1.1.0
[INFO] [stderr]    Compiling miniz_oxide v0.8.9
[INFO] [stderr]    Compiling inotify v0.9.6
[INFO] [stderr]    Compiling regex-automata v0.4.14
[INFO] [stderr]    Compiling async-broadcast v0.7.2
[INFO] [stderr]    Compiling tracing-log v0.2.0
[INFO] [stderr]    Compiling mio v0.8.11
[INFO] [stderr]    Compiling mio v1.2.0
[INFO] [stderr]    Compiling toml_edit v0.25.11+spec-1.1.0
[INFO] [stderr]    Compiling filetime v0.2.27
[INFO] [stderr]    Compiling socket2 v0.6.3
[INFO] [stderr]    Compiling is-terminal v0.4.17
[INFO] [stderr]    Compiling fs-err v3.3.0
[INFO] [stderr]    Compiling ordered-stream v0.2.0
[INFO] [stderr]    Compiling concolor-query v0.3.3
[INFO] [stderr]    Compiling rustc-demangle v0.1.27
[INFO] [stderr]    Compiling redb v4.0.0
[INFO] [stderr]    Compiling ranges v0.4.0
[INFO] [stderr]    Compiling clap_lex v1.1.0
[INFO] [stderr]    Compiling time v0.3.47
[INFO] [stderr]    Compiling clap_builder v4.6.0
[INFO] [stderr]    Compiling futures-util v0.3.32
[INFO] [stderr]    Compiling concolor v0.1.1
[INFO] [stderr]    Compiling addr2line v0.25.1
[INFO] [stderr]    Compiling notify v5.2.0
[INFO] [stderr]    Compiling proc-macro-crate v3.5.0
[INFO] [stderr]    Compiling dirs-sys v0.3.7
[INFO] [stderr]    Compiling unicode-width v0.2.2
[INFO] [stderr]    Compiling bytesize v2.3.1
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling ariadne v0.6.0
[INFO] [stderr]    Compiling dirs2 v3.0.1
[INFO] [stderr]    Compiling humantime v2.3.0
[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-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-2.0.117/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-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=8dbe303ae2b77489 -C extra-filename=-8878fd3d72d6f0b4 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-90c979ef395d2fde.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-e7da784e1a6aaae7.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-499e208ff65c691c.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=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.117/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 --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"' --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=6b99b17816b1d5ff -C extra-filename=-0afe7e5ef3324776 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-90c979ef395d2fde.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-e7da784e1a6aaae7.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-499e208ff65c691c.rmeta --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "e304ba08ce64ee2104004297dff3ee72aa1d93f914d65e8527577098eff63fef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e304ba08ce64ee2104004297dff3ee72aa1d93f914d65e8527577098eff63fef", kill_on_drop: false }`
[INFO] [stdout] e304ba08ce64ee2104004297dff3ee72aa1d93f914d65e8527577098eff63fef
