[INFO] fetching crate alto-follower 2026.5.0...
[INFO] checking alto-follower-2026.5.0 against try#b66808126f24f2f30898306a881e1676824ea80c for pr-133502-23
[INFO] extracting crate alto-follower 2026.5.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate alto-follower 2026.5.0
[INFO] finished tweaking crates.io crate alto-follower 2026.5.0
[INFO] tweaked toml for crates.io crate alto-follower 2026.5.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate alto-follower 2026.5.0 on toolchain b66808126f24f2f30898306a881e1676824ea80c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b66808126f24f2f30898306a881e1676824ea80c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate alto-follower 2026.5.0 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" "+b66808126f24f2f30898306a881e1676824ea80c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 6c5fee0868ace97a8150a9641eef76a776461d1350b9ade7359a3c664d648294
[INFO] running `Command { std: "docker" "start" "6c5fee0868ace97a8150a9641eef76a776461d1350b9ade7359a3c664d648294", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6c5fee0868ace97a8150a9641eef76a776461d1350b9ade7359a3c664d648294", 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" "6c5fee0868ace97a8150a9641eef76a776461d1350b9ade7359a3c664d648294" "/opt/rustwide/cargo-home/bin/cargo" "+b66808126f24f2f30898306a881e1676824ea80c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6c5fee0868ace97a8150a9641eef76a776461d1350b9ade7359a3c664d648294", 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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "6c5fee0868ace97a8150a9641eef76a776461d1350b9ade7359a3c664d648294" "/opt/rustwide/cargo-home/bin/cargo" "+b66808126f24f2f30898306a881e1676824ea80c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling zerocopy v0.8.48
[INFO] [stderr]     Checking typenum v1.20.0
[INFO] [stderr]    Compiling libc v0.2.186
[INFO] [stderr]     Checking futures-channel v0.3.32
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]     Checking http v1.4.0
[INFO] [stderr]     Checking getrandom v0.2.17
[INFO] [stderr]     Checking parking_lot_core v0.9.12
[INFO] [stderr]     Checking errno v0.3.14
[INFO] [stderr]     Checking mio v1.2.0
[INFO] [stderr]     Checking socket2 v0.6.3
[INFO] [stderr]    Compiling zeroize_derive v1.4.3
[INFO] [stderr]    Compiling zerocopy-derive v0.8.48
[INFO] [stderr]    Compiling tokio-macros v2.7.0
[INFO] [stderr]    Compiling futures-macro v0.3.32
[INFO] [stderr]     Checking signal-hook-registry v1.4.8
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking parking_lot v0.12.5
[INFO] [stderr]    Compiling zerofrom-derive v0.1.7
[INFO] [stderr]    Compiling yoke-derive v0.8.2
[INFO] [stderr]    Compiling zerovec-derive v0.11.3
[INFO] [stderr]     Checking either v1.16.0
[INFO] [stderr]    Compiling aws-lc-rs v1.17.0
[INFO] [stderr]     Checking http-body v1.0.1
[INFO] [stderr]     Checking tokio v1.52.3
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]    Compiling toml_edit v0.25.11+spec-1.1.0
[INFO] [stderr]     Checking zeroize v1.8.2
[INFO] [stderr]     Checking itertools v0.13.0
[INFO] [stderr]    Compiling enum-ordinalize-derive v4.3.2
[INFO] [stderr]    Compiling ark-serialize-derive v0.5.0
[INFO] [stderr]     Checking arrayvec v0.7.6
[INFO] [stderr]    Compiling jobserver v0.1.34
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking futures-util v0.3.32
[INFO] [stderr]     Checking rustls-pki-types v1.14.1
[INFO] [stderr]    Compiling cc v1.2.62
[INFO] [stderr]    Compiling proc-macro-crate v3.5.0
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]    Compiling enum-ordinalize v4.3.2
[INFO] [stderr]    Compiling toml_writer v1.1.1+spec-1.1.0
[INFO] [stderr]    Compiling commonware-macros-impl v2026.5.0
[INFO] [stderr]    Compiling rustls v0.23.40
[INFO] [stderr]    Compiling winnow v0.7.15
[INFO] [stderr]    Compiling educe v0.6.0
[INFO] [stderr]    Compiling ark-ff-macros v0.5.0
[INFO] [stderr]     Checking http-body-util v0.1.3
[INFO] [stderr]     Checking rand_core v0.9.5
[INFO] [stderr]    Compiling ark-ff-asm v0.5.0
[INFO] [stderr]     Checking zerofrom v0.1.8
[INFO] [stderr]    Compiling pin-project-internal v1.1.13
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]     Checking yoke v0.8.2
[INFO] [stderr]     Checking zerovec v0.11.6
[INFO] [stderr]     Checking zerotrie v0.2.4
[INFO] [stderr] error: could not compile `tokio` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/b66808126f24f2f30898306a881e1676824ea80c/bin/rustc --crate-name tokio --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.52.3/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="bytes"' --cfg 'feature="default"' --cfg 'feature="fs"' --cfg 'feature="full"' --cfg 'feature="io-std"' --cfg 'feature="io-util"' --cfg 'feature="libc"' --cfg 'feature="macros"' --cfg 'feature="mio"' --cfg 'feature="net"' --cfg 'feature="parking_lot"' --cfg 'feature="process"' --cfg 'feature="rt"' --cfg 'feature="rt-multi-thread"' --cfg 'feature="signal"' --cfg 'feature="signal-hook-registry"' --cfg 'feature="socket2"' --cfg 'feature="sync"' --cfg 'feature="time"' --cfg 'feature="tokio-macros"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("bytes", "default", "fs", "full", "io-std", "io-uring", "io-util", "libc", "macros", "mio", "net", "parking_lot", "process", "rt", "rt-multi-thread", "signal", "signal-hook-registry", "socket2", "sync", "taskdump", "test-util", "time", "tokio-macros", "tracing", "windows-sys"))' -C metadata=0ccde64798d0048b -C extra-filename=-0a9e6c1ec892c0b4 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bytes=/opt/rustwide/target/debug/deps/libbytes-c3c82aecfaa31497.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-7d2af120e89c619c.rmeta --extern mio=/opt/rustwide/target/debug/deps/libmio-16fe799f7440025a.rmeta --extern parking_lot=/opt/rustwide/target/debug/deps/libparking_lot-7995df513ba8f26a.rmeta --extern pin_project_lite=/opt/rustwide/target/debug/deps/libpin_project_lite-7176d3be2b7ee2e1.rmeta --extern signal_hook_registry=/opt/rustwide/target/debug/deps/libsignal_hook_registry-11629a25a8623d3d.rmeta --extern socket2=/opt/rustwide/target/debug/deps/libsocket2-2d04b05b6cb9436d.rmeta --extern tokio_macros=/opt/rustwide/target/debug/deps/libtokio_macros-08b96a339cb6ecf1.so --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `serde_core` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/b66808126f24f2f30898306a881e1676824ea80c/bin/rustc --crate-name serde_core --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/serde_core-1.0.228/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="alloc"' --cfg 'feature="default"' --cfg 'feature="result"' --cfg 'feature="std"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("alloc", "default", "rc", "result", "std", "unstable"))' -C metadata=13ffaf9328f0fbd5 -C extra-filename=-4eaec148b7690d44 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints allow --cap-lints=forbid --check-cfg 'cfg(if_docsrs_then_no_serde_core)' --check-cfg 'cfg(no_core_cstr)' --check-cfg 'cfg(no_core_error)' --check-cfg 'cfg(no_core_net)' --check-cfg 'cfg(no_core_num_saturating)' --check-cfg 'cfg(no_diagnostic_namespace)' --check-cfg 'cfg(no_serde_derive)' --check-cfg 'cfg(no_std_atomic)' --check-cfg 'cfg(no_std_atomic64)' --check-cfg 'cfg(no_target_has_atomic)'` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "6c5fee0868ace97a8150a9641eef76a776461d1350b9ade7359a3c664d648294", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c5fee0868ace97a8150a9641eef76a776461d1350b9ade7359a3c664d648294", kill_on_drop: false }`
[INFO] [stdout] 6c5fee0868ace97a8150a9641eef76a776461d1350b9ade7359a3c664d648294
