[INFO] fetching crate solana-ledger 1.7.11...
[INFO] testing solana-ledger-1.7.11 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate solana-ledger 1.7.11 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate solana-ledger 1.7.11 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate solana-ledger 1.7.11
[INFO] finished tweaking crates.io crate solana-ledger 1.7.11
[INFO] tweaked toml for crates.io crate solana-ledger 1.7.11 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 06843d59c04b7e08878b7c108ce4012f01427119469288955b4410c4ebae6703
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "06843d59c04b7e08878b7c108ce4012f01427119469288955b4410c4ebae6703", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "06843d59c04b7e08878b7c108ce4012f01427119469288955b4410c4ebae6703", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06843d59c04b7e08878b7c108ce4012f01427119469288955b4410c4ebae6703", kill_on_drop: false }`
[INFO] [stdout] 06843d59c04b7e08878b7c108ce4012f01427119469288955b4410c4ebae6703
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6abe03a6cadbdf40f3990e747bc3740a61ceaa6e924f179feac850b14b90f275
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6abe03a6cadbdf40f3990e747bc3740a61ceaa6e924f179feac850b14b90f275", kill_on_drop: false }`
[INFO] [stderr]    Compiling combine v3.8.1
[INFO] [stderr]    Compiling solana-ledger v1.7.11 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling openssl-sys v0.9.66
[INFO] [stderr]    Compiling blake3 v0.3.8
[INFO] [stderr]    Compiling backtrace v0.3.59
[INFO] [stderr]    Compiling zstd-sys v1.4.18+zstd.1.4.7
[INFO] [stderr]    Compiling bzip2-sys v0.1.11+1.0.8
[INFO] [stderr]    Compiling reed-solomon-erasure v4.0.2
[INFO] [stderr]    Compiling env_logger v0.8.4
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling nom v6.2.1
[INFO] [stderr]    Compiling tokio v1.11.0
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling tracing v0.1.26
[INFO] [stderr]    Compiling prost v0.8.0
[INFO] [stderr]    Compiling time-macros v0.1.1
[INFO] [stderr]    Compiling dlopen_derive v0.1.4
[INFO] [stderr]    Compiling async-stream v0.3.2
[INFO] [stderr]    Compiling enum-iterator v0.6.0
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling libsecp256k1-gen-genmult v0.2.1
[INFO] [stderr]    Compiling libsecp256k1-gen-ecmult v0.2.1
[INFO] [stderr]    Compiling proc-macro-crate v1.0.0
[INFO] [stderr]    Compiling borsh v0.9.1
[INFO] [stderr]    Compiling prost-types v0.8.0
[INFO] [stderr]    Compiling tracing-futures v0.2.5
[INFO] [stderr]    Compiling solana-logger v1.7.11
[INFO] [stderr]    Compiling time v0.2.27
[INFO] [stderr]    Compiling libsecp256k1 v0.5.0
[INFO] [stderr]    Compiling libsecp256k1-core v0.2.2
[INFO] [stderr]    Compiling num_enum_derive v0.5.4
[INFO] [stderr]    Compiling openssl v0.10.36
[INFO] [stderr]    Compiling native-tls v0.2.8
[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr]    Compiling solana-frozen-abi v1.7.11
[INFO] [stderr]    Compiling dlopen v0.1.8
[INFO] [stderr]    Compiling chrono-humanize v0.2.1
[INFO] [stderr]    Compiling bzip2 v0.3.3
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling cexpr v0.5.0
[INFO] [stderr]    Compiling prost-build v0.8.0
[INFO] [stderr]    Compiling derivation-path v0.1.3
[INFO] [stderr]    Compiling bindgen v0.59.1
[INFO] [stderr]    Compiling ed25519-dalek-bip32 v0.1.1
[INFO] [stderr] error: could not compile `syn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-1.0.76/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --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="fold"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' -C metadata=90b7c14944930642 -C extra-filename=-90b7c14944930642 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-f941dd7286554f7c.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-b4bec9d0cdeaaeef.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-11d097b41f2e60a4.rmeta --cap-lints allow --cap-lints=warn --cfg syn_disable_nightly_tests` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "6abe03a6cadbdf40f3990e747bc3740a61ceaa6e924f179feac850b14b90f275", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6abe03a6cadbdf40f3990e747bc3740a61ceaa6e924f179feac850b14b90f275", kill_on_drop: false }`
[INFO] [stdout] 6abe03a6cadbdf40f3990e747bc3740a61ceaa6e924f179feac850b14b90f275