[INFO] fetching crate rmk-types 0.2.2...
[INFO] testing rmk-types-0.2.2 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate rmk-types 0.2.2 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate rmk-types 0.2.2
[INFO] finished tweaking crates.io crate rmk-types 0.2.2
[INFO] tweaked toml for crates.io crate rmk-types 0.2.2 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rmk-types 0.2.2 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 rmk-types 0.2.2 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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 5bf99f5fdb656760d3c160e12cdb0acbba436d234eb02cf9bd8518da28cec009
[INFO] running `Command { std: "docker" "start" "-a" "5bf99f5fdb656760d3c160e12cdb0acbba436d234eb02cf9bd8518da28cec009", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5bf99f5fdb656760d3c160e12cdb0acbba436d234eb02cf9bd8518da28cec009", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5bf99f5fdb656760d3c160e12cdb0acbba436d234eb02cf9bd8518da28cec009", kill_on_drop: false }`
[INFO] [stdout] 5bf99f5fdb656760d3c160e12cdb0acbba436d234eb02cf9bd8518da28cec009
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] f9c08e04d3f67e0228ee218c61497a334ad825091ae6922a7cd53debe3c0890d
[INFO] running `Command { std: "docker" "start" "-a" "f9c08e04d3f67e0228ee218c61497a334ad825091ae6922a7cd53debe3c0890d", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.26
[INFO] [stderr]    Compiling thiserror v2.0.16
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]    Compiling heapless v0.7.17
[INFO] [stderr]    Compiling thiserror-impl v2.0.16
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling postcard-derive v0.2.2
[INFO] [stderr]    Compiling strum_macros v0.27.2
[INFO] [stderr]    Compiling bitfield-struct v0.12.1
[INFO] [stderr]    Compiling cobs v0.3.0
[INFO] [stderr]    Compiling strum v0.27.2
[INFO] [stderr]    Compiling postcard v1.1.3
[INFO] [stderr]    Compiling rmk-types v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr] error: rustc interrupted by SIGSEGV, printing backtrace
[INFO] [stderr] 
[INFO] [stderr] /opt/rustwide/rustup-home/toolchains/beta-2026-04-21-x86_64-unknown-linux-gnu/lib/librustc_driver-cf777c98a1c4d62a.so(+0x3bf97ec)[0x7d752b7f97ec]
[INFO] [stderr] /lib/x86_64-linux-gnu/libc.so.6(+0x45330)[0x7d7527a33330]
[INFO] [stderr] /opt/rustwide/rustup-home/toolchains/beta-2026-04-21-x86_64-unknown-linux-gnu/lib/librustc_driver-cf777c98a1c4d62a.so(_RNvMNtNtCsaOC3utBtPJ9_11rustc_parse6parser4stmtNtB4_6Parser27parse_stmt_without_recovery+0x11)[0x7d752cfddc91]
[INFO] [stderr] 
[INFO] [stderr] ### cycle encountered after 3 frames with period 5
[INFO] [stderr] /opt/rustwide/rustup-home/toolchains/beta-2026-04-21-x86_64-unknown-linux-gnu/lib/librustc_driver-cf777c98a1c4d62a.so(+0x53e6a62)[0x7d752cfe6a62]
[INFO] [stderr] /opt/rustwide/rustup-home/toolchains/beta-2026-04-21-x86_64-unknown-linux-gnu/lib/librustc_driver-cf777c98a1c4d62a.so(+0x5429bc3)[0x7d752d029bc3]
[INFO] [stderr] /opt/rustwide/rustup-home/toolchains/beta-2026-04-21-x86_64-unknown-linux-gnu/lib/librustc_driver-cf777c98a1c4d62a.so(_RNvMNtNtCsaOC3utBtPJ9_11rustc_parse6parser4exprNtB4_6Parser21parse_expr_assoc_with+0x45)[0x7d752d022905]
[INFO] [stderr] /opt/rustwide/rustup-home/toolchains/beta-2026-04-21-x86_64-unknown-linux-gnu/lib/librustc_driver-cf777c98a1c4d62a.so(+0x53d3ba5)[0x7d752cfd3ba5]
[INFO] [stderr] /opt/rustwide/rustup-home/toolchains/beta-2026-04-21-x86_64-unknown-linux-gnu/lib/librustc_driver-cf777c98a1c4d62a.so(_RNvMNtNtCsaOC3utBtPJ9_11rustc_parse6parser4stmtNtB4_6Parser27parse_stmt_without_recovery+0xd6a)[0x7d752cfde9ea]
[INFO] [stderr] ### recursed 50 times
[INFO] [stderr] 
[INFO] [stderr] /opt/rustwide/rustup-home/toolchains/beta-2026-04-21-x86_64-unknown-linux-gnu/lib/librustc_driver-cf777c98a1c4d62a.so(+0x53e6a62)[0x7d752cfe6a62]
[INFO] [stderr] /opt/rustwide/rustup-home/toolchains/beta-2026-04-21-x86_64-unknown-linux-gnu/lib/librustc_driver-cf777c98a1c4d62a.so(+0x5429bc3)[0x7d752d029bc3]
[INFO] [stderr] /opt/rustwide/rustup-home/toolchains/beta-2026-04-21-x86_64-unknown-linux-gnu/lib/librustc_driver-cf777c98a1c4d62a.so(_RNvMNtNtCsaOC3utBtPJ9_11rustc_parse6parser4exprNtB4_6Parser21parse_expr_assoc_with+0x45)[0x7d752d022905]
[INFO] [stderr] 
[INFO] [stderr] note: rustc unexpectedly overflowed its stack! this is a bug
[INFO] [stderr] note: maximum backtrace depth reached, frames may have been lost
[INFO] [stderr] note: we would appreciate a report at https://github.com/rust-lang/rust
[INFO] [stderr] help: you can increase rustc's stack size by setting RUST_MIN_STACK=16777216
[INFO] [stderr] error: could not compile `rmk-types` (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 rmk_types --edition=2024 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 --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("defmt", "log"))' -C metadata=e8b6719bbc18af88 -C extra-filename=-000a52fa92aa00d4 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bitfield_struct=/opt/rustwide/target/debug/deps/libbitfield_struct-2b6b590db0d99b37.so --extern postcard=/opt/rustwide/target/debug/deps/libpostcard-57b0fd5191237664.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-feaffe7c7b2588bc.rmeta --extern strum=/opt/rustwide/target/debug/deps/libstrum-f4774de31279dd03.rmeta --cap-lints=warn` (signal: 11, SIGSEGV: invalid memory reference)
[INFO] running `Command { std: "docker" "inspect" "f9c08e04d3f67e0228ee218c61497a334ad825091ae6922a7cd53debe3c0890d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9c08e04d3f67e0228ee218c61497a334ad825091ae6922a7cd53debe3c0890d", kill_on_drop: false }`
[INFO] [stdout] f9c08e04d3f67e0228ee218c61497a334ad825091ae6922a7cd53debe3c0890d
