[INFO] cloning repository https://github.com/IPSE-TEAM/conjugate-poc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/IPSE-TEAM/conjugate-poc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIPSE-TEAM%2Fconjugate-poc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIPSE-TEAM%2Fconjugate-poc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] daa67f6a629a4eaa0d2dc69003cecf6003b016d4
[INFO] documenting IPSE-TEAM/conjugate-poc against 1.75.0 for beta-1.76-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIPSE-TEAM%2Fconjugate-poc" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/IPSE-TEAM/conjugate-poc on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/IPSE-TEAM/conjugate-poc
[INFO] finished tweaking git repo https://github.com/IPSE-TEAM/conjugate-poc
[INFO] tweaked toml for git repo https://github.com/IPSE-TEAM/conjugate-poc written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/IPSE-TEAM/conjugate-poc 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" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded primitive-types v0.5.1
[INFO] [stderr]   Downloaded environmental v1.0.2
[INFO] [stderr]   Downloaded serde_derive v1.0.100
[INFO] [stderr]   Downloaded once_cell v0.2.4
[INFO] [stderr]   Downloaded ed25519-dalek v0.9.1
[INFO] [stderr]   Downloaded jsonrpc-server-utils v14.0.3
[INFO] [stderr]   Downloaded futures-timer v0.4.0
[INFO] [stderr]   Downloaded parity-wasm v0.40.3
[INFO] [stderr]   Downloaded backtrace v0.3.38
[INFO] [stderr]   Downloaded jsonrpc-http-server v14.0.3
[INFO] [stderr]   Downloaded zeroize v0.10.1
[INFO] [stderr]   Downloaded bindgen v0.43.2
[INFO] [stderr]   Downloaded impl-trait-for-tuples v0.1.2
[INFO] [stderr]   Downloaded parity-scale-codec v1.0.6
[INFO] [stderr]   Downloaded jsonrpc-core v14.0.3
[INFO] [stderr]   Downloaded impl-codec v0.4.1
[INFO] [stderr]   Downloaded rpassword v4.0.1
[INFO] [stderr]   Downloaded jsonrpc-derive v14.0.3
[INFO] [stderr]   Downloaded libsecp256k1 v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fdb2bf01c307c212ab85a0027525e90d93c6026317f3fbe4e419ba840a496b43
[INFO] running `Command { std: "docker" "start" "-a" "fdb2bf01c307c212ab85a0027525e90d93c6026317f3fbe4e419ba840a496b43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fdb2bf01c307c212ab85a0027525e90d93c6026317f3fbe4e419ba840a496b43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fdb2bf01c307c212ab85a0027525e90d93c6026317f3fbe4e419ba840a496b43", kill_on_drop: false }`
[INFO] [stdout] fdb2bf01c307c212ab85a0027525e90d93c6026317f3fbe4e419ba840a496b43
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9cedcbf60a6af12639f98301ef30fb7aa1a6e8163c614560034e1f11dc84f1ed
[INFO] running `Command { std: "docker" "start" "-a" "9cedcbf60a6af12639f98301ef30fb7aa1a6e8163c614560034e1f11dc84f1ed", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.4
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]     Checking smallvec v0.6.10
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]     Checking subtle v1.0.0
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling subtle v2.1.1
[INFO] [stderr]     Checking crypto-mac v0.7.0
[INFO] [stderr]     Checking keccak v0.1.0
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]     Checking tokio-executor v0.1.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling num_cpus v1.10.1
[INFO] [stderr]    Compiling jobserver v0.1.17
[INFO] [stderr]     Checking tokio-timer v0.2.11
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]    Compiling cc v1.0.45
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]    Compiling getrandom v0.1.12
[INFO] [stderr]    Compiling ppv-lite86 v0.2.5
[INFO] [stderr]     Checking sha2 v0.8.0
[INFO] [stderr]     Checking regex-syntax v0.6.12
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling generic-array v0.12.3
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]     Checking hmac v0.7.1
[INFO] [stderr]     Checking lock_api v0.3.1
[INFO] [stderr]     Checking unicode-normalization v0.1.8
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking rustc-hex v2.0.1
[INFO] [stderr]    Compiling c2-chacha v0.2.2
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]     Checking uint v0.8.1
[INFO] [stderr]    Compiling num-bigint v0.2.3
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]     Checking parking_lot_core v0.4.0
[INFO] [stderr]     Checking bitvec v0.14.0
[INFO] [stderr]     Checking byte-slice-cast v0.3.2
[INFO] [stderr]     Checking generic-array v0.8.3
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]    Compiling heapsize v0.4.2
[INFO] [stderr]     Checking parity-wasm v0.40.3
[INFO] [stderr]     Checking hash-db v0.15.2
[INFO] [stderr]     Checking pbkdf2 v0.3.0
[INFO] [stderr]    Compiling sr-std v2.0.0 (/opt/rustwide/workdir/vendor/substrate/core/sr-std)
[INFO] [stderr]     Checking static_assertions v0.2.5
[INFO] [stderr]     Checking memory_units v0.3.0
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]    Compiling clear_on_drop v0.2.3
[INFO] [stderr]    Compiling ring v0.14.6
[INFO] [stderr]     Checking fixed-hash v0.4.0
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking once_cell v0.1.8
[INFO] [stderr]     Checking sha-1 v0.8.1
[INFO] [stderr]     Checking hashbrown v0.1.8
[INFO] [stderr]     Checking elastic-array v0.10.2
[INFO] [stderr]     Checking digest v0.6.2
[INFO] [stderr]     Checking blake2-rfc v0.2.18
[INFO] [stderr]     Checking hash256-std-hasher v0.15.2
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]    Compiling hashbrown v0.6.0
[INFO] [stderr]     Checking twox-hash v1.5.0
[INFO] [stderr]     Checking zeroize v0.10.1
[INFO] [stderr]     Checking base58 v0.1.0
[INFO] [stderr]     Checking unsigned-varint v0.2.2
[INFO] [stderr]     Checking wasmi-validation v0.2.0
[INFO] [stderr]     Checking crypto-mac v0.4.0
[INFO] [stderr]    Compiling parking_lot_core v0.5.0
[INFO] [stderr]     Checking block-buffer v0.2.0
[INFO] [stderr]     Checking sha3 v0.8.2
[INFO] [stderr]     Checking mio v0.6.19
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]     Checking blake2 v0.8.1
[INFO] [stderr]    Compiling parking_lot v0.8.0
[INFO] [stderr]     Checking hmac v0.4.2
[INFO] [stderr]    Compiling protobuf v2.8.1
[INFO] [stderr]     Checking sha2 v0.6.0
[INFO] [stderr]     Checking hmac-drbg v0.1.2
[INFO] [stderr]     Checking lock_api v0.2.0
[INFO] [stderr]     Checking bs58 v0.2.5
[INFO] [stderr]     Checking parity-multihash v0.1.3
[INFO] [stderr]     Checking data-encoding v2.1.2
[INFO] [stderr]     Checking libsecp256k1 v0.2.2
[INFO] [stderr]     Checking multistream-select v0.5.1
[INFO] [stderr]     Checking trie-root v0.15.2
[INFO] [stderr]     Checking rw-stream-sink v0.1.2
[INFO] [stderr]     Checking wasm-timer v0.1.2
[INFO] [stderr]     Checking tokio-sync v0.1.6
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]     Checking hmac-drbg v0.2.0
[INFO] [stderr]     Checking wasmi v0.5.1
[INFO] [stderr]    Compiling sr-io v2.0.0 (/opt/rustwide/workdir/vendor/substrate/core/sr-io)
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]     Checking libsecp256k1 v0.3.0
[INFO] [stderr]     Checking tiny-keccak v1.5.0
[INFO] [stderr]     Checking environmental v1.0.2
[INFO] [stderr]    Compiling pkg-config v0.3.16
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]     Checking tokio-reactor v0.1.9
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking integer-sqrt v0.1.2
[INFO] [stderr]     Checking tokio-threadpool v0.1.15
[INFO] [stderr]     Checking tokio-current-thread v0.1.6
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]     Checking tokio-udp v0.1.5
[INFO] [stderr]     Checking tokio-uds v0.2.5
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking http v0.1.19
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.50
[INFO] [stderr]    Compiling bitflags v1.2.0
[INFO] [stderr]    Compiling nodrop v0.1.13
[INFO] [stderr]    Compiling constant_time_eq v0.1.4
[INFO] [stderr]     Checking tokio-fs v0.1.6
[INFO] [stderr]    Compiling bumpalo v2.6.0
[INFO] [stderr]    Compiling unicode-segmentation v1.3.0
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling miniz-sys v0.1.12
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-sink-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking parking_lot_core v0.3.1
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking futures-channel-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking pin-utils v0.1.0-alpha.4
[INFO] [stderr]     Checking futures-io-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling wasm-bindgen v0.2.50
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]     Checking crc32fast v1.2.0
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking parking_lot_core v0.2.14
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking owning_ref v0.3.3
[INFO] [stderr]     Checking stream-cipher v0.3.2
[INFO] [stderr]    Compiling snow v0.5.2
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr] error: could not compile `syn` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.75.0-x86_64-unknown-linux-gnu/bin/rustc --crate-name syn /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/syn-0.15.44/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 --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"' -C metadata=c85c9b3ec200d6a6 -C extra-filename=-c85c9b3ec200d6a6 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-3fa3e48f27d9289c.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-908acc6bf3b16dfc.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-6cf510833a221d3e.rmeta --cap-lints allow --cap-lints=warn --cfg syn_can_match_trailing_dollar --cfg syn_can_use_thread_id --cfg syn_can_use_associated_constants --cfg syn_can_call_macro_by_path --cfg syn_disable_nightly_tests` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "9cedcbf60a6af12639f98301ef30fb7aa1a6e8163c614560034e1f11dc84f1ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9cedcbf60a6af12639f98301ef30fb7aa1a6e8163c614560034e1f11dc84f1ed", kill_on_drop: false }`
[INFO] [stdout] 9cedcbf60a6af12639f98301ef30fb7aa1a6e8163c614560034e1f11dc84f1ed
