[INFO] fetching crate solana-core 1.6.7...
[INFO] checking solana-core-1.6.7 against master#50e1dc1536264ab71c0850f346b12309477f29f7 for pr-85073
[INFO] extracting crate solana-core 1.6.7 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate solana-core 1.6.7 on toolchain 50e1dc1536264ab71c0850f346b12309477f29f7
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate solana-core 1.6.7
[INFO] finished tweaking crates.io crate solana-core 1.6.7
[INFO] tweaked toml for crates.io crate solana-core 1.6.7 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d9b8b06b61c4094382d0814a78d973bfc97f295b02470110cc08cfc0f4ec9670
[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" "d9b8b06b61c4094382d0814a78d973bfc97f295b02470110cc08cfc0f4ec9670", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d9b8b06b61c4094382d0814a78d973bfc97f295b02470110cc08cfc0f4ec9670", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9b8b06b61c4094382d0814a78d973bfc97f295b02470110cc08cfc0f4ec9670", kill_on_drop: false }`
[INFO] [stdout] d9b8b06b61c4094382d0814a78d973bfc97f295b02470110cc08cfc0f4ec9670
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=forbid" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 850c8828d9d08528069e793c3dc48203ba71b658e14515d0c8a23878b8803960
[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" "850c8828d9d08528069e793c3dc48203ba71b658e14515d0c8a23878b8803960", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling futures-core v0.3.15
[INFO] [stderr]     Checking futures-sink v0.3.15
[INFO] [stderr]    Compiling futures-task v0.3.15
[INFO] [stderr]    Compiling futures-channel v0.3.15
[INFO] [stderr]     Checking futures-io v0.3.15
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling httparse v1.4.1
[INFO] [stderr]     Checking openssl-probe v0.1.4
[INFO] [stderr]     Checking cpufeatures v0.1.4
[INFO] [stderr]    Compiling rustversion v1.0.5
[INFO] [stderr]    Compiling winapi v0.3.9
[INFO] [stderr]     Checking httpdate v1.0.1
[INFO] [stderr]    Compiling const_fn v0.4.8
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]     Checking arc-swap v1.3.0
[INFO] [stderr]     Checking retain_mut v0.1.3
[INFO] [stderr]     Checking bytesize v1.0.1
[INFO] [stderr]    Compiling futures-macro v0.3.15
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling tokio v1.6.0
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling nom v6.1.2
[INFO] [stderr]     Checking proc-macro2 v1.0.27
[INFO] [stderr]     Checking http-body v0.4.2
[INFO] [stderr]    Compiling solana-core v1.6.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking bitvec v0.19.5
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking paste v0.1.18
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking sha2 v0.8.2
[INFO] [stderr]     Checking sha-1 v0.8.2
[INFO] [stderr]     Checking hmac v0.7.1
[INFO] [stderr]     Checking quote v1.0.9
[INFO] [stderr]     Checking hmac-drbg v0.2.0
[INFO] [stderr]     Checking miow v0.3.7
[INFO] [stderr]    Compiling Inflector v0.11.4
[INFO] [stderr]     Checking globset v0.4.6
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking mio v0.7.11
[INFO] [stderr]     Checking parking_lot_core v0.6.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking socket2 v0.4.0
[INFO] [stderr]     Checking memmap2 v0.1.0
[INFO] [stderr]     Checking jobserver v0.1.22
[INFO] [stderr]     Checking gethostname v0.2.1
[INFO] [stderr]     Checking filetime v0.2.14
[INFO] [stderr]     Checking terminal_size v0.1.17
[INFO] [stderr]     Checking xattr v0.2.2
[INFO] [stderr]     Checking flate2 v1.0.20
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking termios v0.3.3
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking rpassword v4.0.5
[INFO] [stderr]     Checking nix v0.19.1
[INFO] [stderr]     Checking socket2 v0.3.19
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking users v0.10.0
[INFO] [stderr]     Checking unix_socket2 v0.5.4
[INFO] [stderr]    Compiling clang-sys v1.2.0
[INFO] [stderr]     Checking env_logger v0.8.3
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking tokio-threadpool v0.1.18
[INFO] [stderr]     Checking solana-rayon-threadlimit v1.6.7
[INFO] [stderr]     Checking core_affinity v0.5.10
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking miow v0.2.2
[INFO] [stderr]     Checking parking_lot v0.9.0
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking console v0.14.1
[INFO] [stderr]     Checking cc v1.0.49
[INFO] [stderr]     Checking hyper v0.10.16
[INFO] [stderr]     Checking tar v0.4.33
[INFO] [stderr]     Checking console v0.11.3
[INFO] [stderr]    Compiling dlopen_derive v0.1.4
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking solana-logger v1.6.7
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand_pcg v0.2.1
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]     Checking indicatif v0.15.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking ahash v0.6.3
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking tokio-reactor v0.1.12
[INFO] [stderr]     Checking tokio-codec v0.1.2
[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-1.0.72/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"' --cfg 'feature="visit"' --cfg 'feature="visit-mut"' -C metadata=82b48f0b00021104 -C extra-filename=-82b48f0b00021104 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-223cc1bf4c7d615f.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-9c9c6fb7ecc8d1ce.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-44670c754cca1080.rmeta --cap-lints allow --cap-lints=forbid` (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" "850c8828d9d08528069e793c3dc48203ba71b658e14515d0c8a23878b8803960", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "850c8828d9d08528069e793c3dc48203ba71b658e14515d0c8a23878b8803960", kill_on_drop: false }`
[INFO] [stdout] 850c8828d9d08528069e793c3dc48203ba71b658e14515d0c8a23878b8803960