[INFO] fetching crate xplr 1.1.0...
[INFO] testing xplr-1.1.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate xplr 1.1.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate xplr 1.1.0
[INFO] finished tweaking crates.io crate xplr 1.1.0
[INFO] tweaked toml for crates.io crate xplr 1.1.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate xplr 1.1.0 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 xplr 1.1.0 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] 966c15f0090d0b7e57c7e408d910cce9b35d20d53d27a660e12932d8c2dcd93b
[INFO] running `Command { std: "docker" "start" "-a" "966c15f0090d0b7e57c7e408d910cce9b35d20d53d27a660e12932d8c2dcd93b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "966c15f0090d0b7e57c7e408d910cce9b35d20d53d27a660e12932d8c2dcd93b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "966c15f0090d0b7e57c7e408d910cce9b35d20d53d27a660e12932d8c2dcd93b", kill_on_drop: false }`
[INFO] [stdout] 966c15f0090d0b7e57c7e408d910cce9b35d20d53d27a660e12932d8c2dcd93b
[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] 21012f5e95a4c112675597578f362b760f51792dd59f835914a1d388e42518be
[INFO] running `Command { std: "docker" "start" "-a" "21012f5e95a4c112675597578f362b760f51792dd59f835914a1d388e42518be", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.178
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling env_home v0.1.0
[INFO] [stderr]    Compiling rustix v1.1.2
[INFO] [stderr]    Compiling unicase v2.8.1
[INFO] [stderr]    Compiling syn v2.0.111
[INFO] [stderr]    Compiling bitflags v2.10.0
[INFO] [stderr]    Compiling find-msvc-tools v0.1.5
[INFO] [stderr]    Compiling lock_api v0.4.14
[INFO] [stderr]    Compiling zerocopy v0.8.31
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]    Compiling anstream v0.6.21
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling instability v0.3.10
[INFO] [stderr]    Compiling linux-raw-sys v0.4.15
[INFO] [stderr]    Compiling linux-raw-sys v0.11.0
[INFO] [stderr]    Compiling cc v1.2.49
[INFO] [stderr]    Compiling itertools v0.13.0
[INFO] [stderr]    Compiling nix v0.29.0
[INFO] [stderr]    Compiling typeid v1.0.3
[INFO] [stderr]    Compiling indexmap v2.12.1
[INFO] [stderr]    Compiling clap_builder v4.5.53
[INFO] [stderr]    Compiling lru v0.12.5
[INFO] [stderr]    Compiling pulldown-cmark v0.13.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.15
[INFO] [stderr]    Compiling erased-serde v0.4.9
[INFO] [stderr]    Compiling time-macros v0.2.24
[INFO] [stderr]    Compiling chrono v0.4.42
[INFO] [stderr]    Compiling lua-src v548.1.2
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling mime_guess v2.0.5
[INFO] [stderr]    Compiling ordered-float v2.10.1
[INFO] [stderr]    Compiling crossbeam-queue v0.3.12
[INFO] [stderr]    Compiling skim-common v0.1.2
[INFO] [stderr]    Compiling jiff v0.2.16
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling crossbeam v0.8.4
[INFO] [stderr]    Compiling signal-hook-registry v1.4.7
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling mio v1.1.1
[INFO] [stderr]    Compiling which v8.0.0
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling signal-hook v0.3.18
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling luajit-src v210.6.4+e17ee83
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling dirs-next v2.0.0
[INFO] [stderr]    Compiling unicode-truncate v1.1.0
[INFO] [stderr]    Compiling term v0.7.0
[INFO] [stderr]    Compiling rand_core v0.9.3
[INFO] [stderr]    Compiling timer v0.2.0
[INFO] [stderr]    Compiling mlua-sys v0.9.0
[INFO] [stderr]    Compiling which v7.0.3
[INFO] [stderr]    Compiling signal-hook-mio v0.2.5
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling crossterm v0.28.1
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling vte v0.15.0
[INFO] [stderr]    Compiling fuzzy-matcher v0.3.7
[INFO] [stderr]    Compiling rayon v1.11.0
[INFO] [stderr]    Compiling defer-drop v1.3.0
[INFO] [stderr]    Compiling rand v0.9.2
[INFO] [stderr]    Compiling darling_core v0.20.11
[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-2.0.111/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"' --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=6fa3fb066c2dae9c -C extra-filename=-0995adec69516d47 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-2f6ea505ff82ebb0.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-39de46f98adae129.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-78d3da9d81f84e3e.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" "21012f5e95a4c112675597578f362b760f51792dd59f835914a1d388e42518be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21012f5e95a4c112675597578f362b760f51792dd59f835914a1d388e42518be", kill_on_drop: false }`
[INFO] [stdout] 21012f5e95a4c112675597578f362b760f51792dd59f835914a1d388e42518be
