[INFO] fetching crate tari_comms_middleware 0.0.7...
[INFO] checking tari_comms_middleware-0.0.7 against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] extracting crate tari_comms_middleware 0.0.7 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate tari_comms_middleware 0.0.7 on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tari_comms_middleware 0.0.7
[INFO] finished tweaking crates.io crate tari_comms_middleware 0.0.7
[INFO] tweaked toml for crates.io crate tari_comms_middleware 0.0.7 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "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" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b82f844815e4adf01185e1e3924f8bf4b2bcc932a38fabf9ded3253fe05e78bd
[INFO] running `Command { std: "docker" "start" "-a" "b82f844815e4adf01185e1e3924f8bf4b2bcc932a38fabf9ded3253fe05e78bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b82f844815e4adf01185e1e3924f8bf4b2bcc932a38fabf9ded3253fe05e78bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b82f844815e4adf01185e1e3924f8bf4b2bcc932a38fabf9ded3253fe05e78bd", kill_on_drop: false }`
[INFO] [stdout] b82f844815e4adf01185e1e3924f8bf4b2bcc932a38fabf9ded3253fe05e78bd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5c46558f690cf9e023ac59ce6f8b70f07b032a25f4b9a255e21687dc4946a9c5
[INFO] running `Command { std: "docker" "start" "-a" "5c46558f690cf9e023ac59ce6f8b70f07b032a25f4b9a255e21687dc4946a9c5", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling futures-channel v0.3.16
[INFO] [stderr]     Checking futures-sink v0.3.16
[INFO] [stderr]    Compiling futures-task v0.3.16
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling pin-project-internal v0.4.28
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking futures-io v0.3.16
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking pin-project-lite v0.1.12
[INFO] [stderr]    Compiling libm v0.1.4
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]     Checking tower-service v0.3.1
[INFO] [stderr]    Compiling packed_simd_2 v0.3.5
[INFO] [stderr]     Checking keccak v0.1.0
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling serde v0.8.23
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]    Compiling linked-hash-map v0.5.4
[INFO] [stderr]    Compiling subtle v1.0.0
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling traitobject v0.1.0
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]    Compiling case v0.1.0
[INFO] [stderr]     Checking tower-layer v0.3.1
[INFO] [stderr]    Compiling unsigned-varint v0.3.3
[INFO] [stderr]     Checking newtype-ops v0.1.4
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]    Compiling c_linked_list v1.1.1
[INFO] [stderr]    Compiling rust-ini v0.13.0
[INFO] [stderr]    Compiling multimap v0.8.3
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling arc-swap v0.3.11
[INFO] [stderr]    Compiling antidote v1.0.0
[INFO] [stderr]    Compiling bs58 v0.3.1
[INFO] [stderr]    Compiling log-mdc v0.1.0
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking bitflags v0.9.1
[INFO] [stderr]     Checking arrayref v0.3.6
[INFO] [stderr]     Checking supercow v0.1.0
[INFO] [stderr]     Checking data-encoding v2.3.2
[INFO] [stderr]     Checking bitstring v0.1.1
[INFO] [stderr]     Checking nohash-hasher v0.2.0
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling futures-macro v0.3.16
[INFO] [stderr]    Compiling futures-util v0.3.16
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling block-padding v0.1.5
[INFO] [stderr]     Checking tracing-core v0.1.18
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling unsafe-any v0.4.2
[INFO] [stderr]    Compiling yaml-rust v0.4.5
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]     Checking chacha20-poly1305-aead v0.1.2
[INFO] [stderr]     Checking typenum v1.13.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling dirs-sys v0.3.6
[INFO] [stderr]    Compiling thread-id v3.3.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling get_if_addrs v0.5.3
[INFO] [stderr]    Compiling generic-array v0.12.4
[INFO] [stderr]    Compiling idna v0.2.3
[INFO] [stderr]    Compiling typemap v0.3.3
[INFO] [stderr]    Compiling snow v0.6.2
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking crossbeam-channel v0.3.9
[INFO] [stderr]    Compiling serde_test v0.8.23
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling crypto-mac v0.7.0
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling prost-build v0.6.1
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling flate2 v1.0.20
[INFO] [stderr]    Compiling sha3 v0.8.2
[INFO] [stderr]    Compiling sha2 v0.8.2
[INFO] [stderr]    Compiling sha-1 v0.8.2
[INFO] [stderr]    Compiling linked-hash-map v0.3.0
[INFO] [stderr]    Compiling blake2 v0.8.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr] error: could not compile `regex-syntax`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name regex_syntax --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/regex-syntax-0.6.25/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="default"' --cfg 'feature="unicode"' --cfg 'feature="unicode-age"' --cfg 'feature="unicode-bool"' --cfg 'feature="unicode-case"' --cfg 'feature="unicode-gencat"' --cfg 'feature="unicode-perl"' --cfg 'feature="unicode-script"' --cfg 'feature="unicode-segment"' -C metadata=cfec10257cbd629b -C extra-filename=-cfec10257cbd629b --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --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" "5c46558f690cf9e023ac59ce6f8b70f07b032a25f4b9a255e21687dc4946a9c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c46558f690cf9e023ac59ce6f8b70f07b032a25f4b9a255e21687dc4946a9c5", kill_on_drop: false }`
[INFO] [stdout] 5c46558f690cf9e023ac59ce6f8b70f07b032a25f4b9a255e21687dc4946a9c5