[INFO] fetching crate ibc-relayer 0.6.0...
[INFO] checking ibc-relayer-0.6.0 against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] extracting crate ibc-relayer 0.6.0 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate ibc-relayer 0.6.0 on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ibc-relayer 0.6.0
[INFO] finished tweaking crates.io crate ibc-relayer 0.6.0
[INFO] tweaked toml for crates.io crate ibc-relayer 0.6.0 written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded gumdrop_derive v0.8.0
[INFO] [stderr]   Downloaded crypto-mac v0.11.1
[INFO] [stderr]   Downloaded env_logger v0.8.4
[INFO] [stderr]   Downloaded bitcoin_hashes v0.10.0
[INFO] [stderr]   Downloaded bitcoin v0.27.0
[INFO] [stderr]   Downloaded ecdsa v0.12.3
[INFO] [stderr]   Downloaded serial_test_derive v0.5.1
[INFO] [stderr]   Downloaded tendermint-testgen v0.21.0
[INFO] [stderr]   Downloaded ibc-telemetry v0.6.1
[INFO] [stderr]   Downloaded test-env-log v0.2.7
[INFO] [stderr]   Downloaded serial_test v0.5.1
[INFO] [stderr]   Downloaded elliptic-curve v0.10.5
[INFO] [stderr]   Downloaded k256 v0.9.6
[INFO] [stderr]   Downloaded gumdrop v0.8.0
[INFO] [stderr]   Downloaded pkcs8 v0.7.4
[INFO] [stderr]   Downloaded tendermint-testgen v0.20.0
[INFO] [stderr]   Downloaded simple-error v0.2.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b78331f234f47d2f49934ffbae3f4d25e186c20584d172ec39065f1f0c13f028
[INFO] running `Command { std: "docker" "start" "-a" "b78331f234f47d2f49934ffbae3f4d25e186c20584d172ec39065f1f0c13f028", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b78331f234f47d2f49934ffbae3f4d25e186c20584d172ec39065f1f0c13f028", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b78331f234f47d2f49934ffbae3f4d25e186c20584d172ec39065f1f0c13f028", kill_on_drop: false }`
[INFO] [stdout] b78331f234f47d2f49934ffbae3f4d25e186c20584d172ec39065f1f0c13f028
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 93fa458c73c2ca0366894e0621475d23286b1b347ab2b8e4bd9ab02d26e441ed
[INFO] running `Command { std: "docker" "start" "-a" "93fa458c73c2ca0366894e0621475d23286b1b347ab2b8e4bd9ab02d26e441ed", 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] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling futures-task v0.3.16
[INFO] [stderr]    Compiling futures-channel v0.3.16
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]     Checking block-padding v0.2.1
[INFO] [stderr]     Checking futures-io v0.3.16
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking cpufeatures v0.1.5
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking const-oid v0.6.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]     Checking keccak v0.1.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking bitcoin_hashes v0.10.0
[INFO] [stderr]     Checking dyn-clone v1.0.4
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking bech32 v0.8.1
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking bech32 v0.7.3
[INFO] [stderr]     Checking retry v1.2.1
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking instant v0.1.10
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stderr]    Compiling futures-macro v0.3.16
[INFO] [stderr]    Compiling futures-util v0.3.16
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling tokio v1.9.0
[INFO] [stderr]     Checking tracing-core v0.1.18
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling backtrace v0.3.60
[INFO] [stderr]    Compiling secp256k1-sys v0.4.1
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]     Checking input_buffer v0.4.0
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]     Checking sharded-slab v0.1.1
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stderr]    Compiling anyhow v1.0.42
[INFO] [stderr]     Checking der v0.4.0
[INFO] [stderr]     Checking headers-core v0.2.0
[INFO] [stderr]     Checking crossbeam-utils v0.8.5
[INFO] [stderr]     Checking semver v1.0.3
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking object v0.25.3
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking ff v0.10.0
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking group v0.10.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking env_logger v0.8.4
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking tracing-log v0.1.2
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]     Checking spki v0.4.0
[INFO] [stderr]     Checking pkcs8 v0.7.4
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking openssl v0.10.35
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking sled v0.34.6
[INFO] [stderr]     Checking matchers v0.0.1
[INFO] [stderr]     Checking crossbeam-channel v0.4.4
[INFO] [stderr]     Checking num-integer v0.1.44
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking fraction v0.8.0
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking crypto-mac v0.11.1
[INFO] [stderr]     Checking crypto-mac v0.8.0
[INFO] [stderr]     Checking pbkdf2 v0.4.0
[INFO] [stderr]     Checking sct v0.6.1
[INFO] [stderr]     Checking webpki v0.21.4
[INFO] [stderr]     Checking sha2 v0.9.5
[INFO] [stderr]     Checking signature v1.3.1
[INFO] [stderr]     Checking sha-1 v0.9.7
[INFO] [stderr]     Checking ripemd160 v0.9.1
[INFO] [stderr]     Checking hmac v0.11.0
[INFO] [stderr]     Checking sha3 v0.9.1
[INFO] [stderr]     Checking hmac v0.8.1
[INFO] [stderr]     Checking ct-logs v0.8.0
[INFO] [stderr]     Checking tungstenite v0.12.0
[INFO] [stderr]     Checking headers v0.3.4
[INFO] [stderr]     Checking rustls v0.19.1
[INFO] [stderr]     Checking webpki-roots v0.21.1
[INFO] [stderr]     Checking native-tls v0.2.7
[INFO] [stderr]     Checking rustls-native-certs v0.5.0
[INFO] [stderr]    Compiling synstructure v0.12.5
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling zeroize_derive v1.1.0
[INFO] [stderr]    Compiling tokio-macros v1.3.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.15
[INFO] [stderr]    Compiling prost-derive v0.7.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling num-derive v0.3.3
[INFO] [stderr]    Compiling async-trait v0.1.50
[INFO] [stderr]    Compiling pin-project-internal v1.0.8
[INFO] [stderr]    Compiling serde_repr v0.1.7
[INFO] [stderr]    Compiling async-stream-impl v0.3.2
[INFO] [stderr]    Compiling gumdrop_derive v0.8.0
[INFO] [stderr]    Compiling dyn-clonable-impl v0.9.0
[INFO] [stderr]    Compiling contracts v0.4.0
[INFO] [stderr]    Compiling derive_more v0.99.16
[INFO] [stderr]    Compiling serial_test_derive v0.5.1
[INFO] [stderr]    Compiling test-env-log v0.2.7
[INFO] [stderr]     Checking dyn-clonable v0.9.0
[INFO] [stderr]     Checking serial_test v0.5.1
[INFO] [stderr] error: could not compile `serde_derive`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name serde_derive /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_derive-1.0.126/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type proc-macro --emit=dep-info,link -C prefer-dynamic -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' -C metadata=b0c7b239f93d152e -C extra-filename=-b0c7b239f93d152e --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-b7a34e7f5505bb8f.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-5da676fa6cee0d41.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-4b63af4bacff1124.rlib --extern proc_macro --cap-lints allow --cap-lints=forbid --cfg underscore_consts` (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" "93fa458c73c2ca0366894e0621475d23286b1b347ab2b8e4bd9ab02d26e441ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93fa458c73c2ca0366894e0621475d23286b1b347ab2b8e4bd9ab02d26e441ed", kill_on_drop: false }`
[INFO] [stdout] 93fa458c73c2ca0366894e0621475d23286b1b347ab2b8e4bd9ab02d26e441ed