[INFO] fetching crate safe_authenticator_ffi 0.17.1...
[INFO] checking safe_authenticator_ffi-0.17.1 against try#575650af7d7ca88602df28e39d27bf3e456c306e for pr-80579
[INFO] extracting crate safe_authenticator_ffi 0.17.1 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate safe_authenticator_ffi 0.17.1 on toolchain 575650af7d7ca88602df28e39d27bf3e456c306e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate safe_authenticator_ffi 0.17.1
[INFO] finished tweaking crates.io crate safe_authenticator_ffi 0.17.1
[INFO] tweaked toml for crates.io crate safe_authenticator_ffi 0.17.1 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2ca179a42dc2920ac5cc3a5da5113a8b5860505c32c5821a1d331d12b9c5102b
[INFO] running `Command { std: "docker" "start" "-a" "2ca179a42dc2920ac5cc3a5da5113a8b5860505c32c5821a1d331d12b9c5102b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2ca179a42dc2920ac5cc3a5da5113a8b5860505c32c5821a1d331d12b9c5102b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ca179a42dc2920ac5cc3a5da5113a8b5860505c32c5821a1d331d12b9c5102b", kill_on_drop: false }`
[INFO] [stdout] 2ca179a42dc2920ac5cc3a5da5113a8b5860505c32c5821a1d331d12b9c5102b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c898017a2a37d0bb16fd2d0158d2eda3e1847087707285c3b72a9b7f0d37f8d5
[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" "c898017a2a37d0bb16fd2d0158d2eda3e1847087707285c3b72a9b7f0d37f8d5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling syn v1.0.56
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]    Compiling subtle v2.4.0
[INFO] [stderr]     Checking gimli v0.23.0
[INFO] [stderr]    Compiling memsec v0.5.7
[INFO] [stderr]     Checking rustc-demangle v0.1.18
[INFO] [stderr]    Compiling rustversion v1.0.4
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]     Checking object v0.22.0
[INFO] [stderr]    Compiling getrandom v0.2.0
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]     Checking futures-sink v0.3.8
[INFO] [stderr]     Checking subtle v1.0.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling regex-syntax v0.6.21
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]     Checking alloc-no-stdlib v2.0.1
[INFO] [stderr]    Compiling byte-tools v0.3.1
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking traitobject v0.1.0
[INFO] [stderr]     Checking radium v0.3.0
[INFO] [stderr]    Compiling ucd-util v0.1.8
[INFO] [stderr]    Compiling opaque-debug v0.2.3
[INFO] [stderr]    Compiling ascii v0.9.3
[INFO] [stderr]    Compiling hex_fmt v0.3.0
[INFO] [stderr]    Compiling unwrap v1.2.1
[INFO] [stderr]     Checking dtoa v0.4.7
[INFO] [stderr]    Compiling safemem v0.3.3
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[INFO] [stderr]    Compiling keccak v0.1.0
[INFO] [stderr]     Checking base-x v0.2.8
[INFO] [stderr]    Compiling jni-sys v0.3.0
[INFO] [stderr]     Checking antidote v1.0.0
[INFO] [stderr]    Compiling cesu8 v1.1.0
[INFO] [stderr]     Checking zeroize v0.5.2
[INFO] [stderr]     Checking log-mdc v0.1.0
[INFO] [stderr]     Checking arc-swap v0.3.11
[INFO] [stderr]     Checking data-encoding v2.3.1
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling clear_on_drop v0.2.4
[INFO] [stderr]    Compiling ring v0.16.19
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling hashbrown v0.6.3
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking futures-task v0.3.8
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]     Checking futures-channel v0.3.8
[INFO] [stderr]     Checking yaml-rust v0.4.4
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]     Checking alloc-stdlib v0.2.1
[INFO] [stderr]    Compiling block-padding v0.1.5
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]     Checking unsafe-any v0.4.2
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]     Checking bitvec v0.17.4
[INFO] [stderr]    Compiling multibase v0.6.0
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]     Checking brotli-decompressor v2.3.1
[INFO] [stderr]     Checking typemap v0.3.3
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]    Compiling tiny-keccak v1.5.0
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling jni v0.12.3
[INFO] [stderr]     Checking addr2line v0.14.1
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]    Compiling combine v3.8.1
[INFO] [stderr]     Checking block-cipher-trait v0.6.2
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking crypto-mac v0.7.0
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking dbl v0.2.1
[INFO] [stderr]     Checking stream-cipher v0.3.2
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking errno v0.2.7
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking thread-id v3.3.0
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking directories v1.0.2
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking flate2 v1.0.19
[INFO] [stderr]     Checking crossbeam-channel v0.4.4
[INFO] [stderr]    Compiling err-derive v0.2.4
[INFO] [stderr]     Checking backtrace v0.3.55
[INFO] [stderr]     Checking ordered-float v1.1.1
[INFO] [stderr]     Checking aes-soft v0.3.3
[INFO] [stderr]     Checking block-modes v0.3.3
[INFO] [stderr]     Checking pbkdf2 v0.3.0
[INFO] [stderr]     Checking hmac v0.7.1
[INFO] [stderr]     Checking sha-1 v0.8.2
[INFO] [stderr]     Checking sha3 v0.8.2
[INFO] [stderr]     Checking pmac v0.2.0
[INFO] [stderr]     Checking cmac v0.2.0
[INFO] [stderr]     Checking brotli v3.3.0
[INFO] [stderr]     Checking ctr v0.3.2
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking directories v2.0.2
[INFO] [stderr]    Compiling const-random-macro v0.1.13
[INFO] [stderr]     Checking rand04 v0.1.1
[INFO] [stderr]     Checking pairing v0.14.2
[INFO] [stderr]    Compiling curve25519-dalek v1.2.4
[INFO] [stderr]     Checking aes v0.3.2
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking webpki v0.21.4
[INFO] [stderr]     Checking sct v0.6.0
[INFO] [stderr]     Checking rand04_compat v0.1.1
[INFO] [stderr]     Checking miscreant v0.4.2
[INFO] [stderr]     Checking const-random v0.1.13
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking ahash v0.2.19
[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-1.0.56/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="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' --cfg 'feature="visit-mut"' -C metadata=340bbb0e231da014 -C extra-filename=-340bbb0e231da014 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-8a8bb825df9136cb.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-e6e45b372c4ec1ec.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-083414e3434d8e82.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" "c898017a2a37d0bb16fd2d0158d2eda3e1847087707285c3b72a9b7f0d37f8d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c898017a2a37d0bb16fd2d0158d2eda3e1847087707285c3b72a9b7f0d37f8d5", kill_on_drop: false }`
[INFO] [stdout] c898017a2a37d0bb16fd2d0158d2eda3e1847087707285c3b72a9b7f0d37f8d5