[INFO] fetching crate ibc 0.8.0...
[INFO] testing ibc-0.8.0 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate ibc 0.8.0 into /workspace/builds/worker-45/source
[INFO] validating manifest of crates.io crate ibc 0.8.0 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ibc 0.8.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate ibc 0.8.0
[INFO] tweaked toml for crates.io crate ibc 0.8.0 written to /workspace/builds/worker-45/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f6603b0a8100cf6eb2a9fa47acff9b31409ced47be094746354caa9f50308c8e
[INFO] running `Command { std: "docker" "start" "-a" "f6603b0a8100cf6eb2a9fa47acff9b31409ced47be094746354caa9f50308c8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f6603b0a8100cf6eb2a9fa47acff9b31409ced47be094746354caa9f50308c8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6603b0a8100cf6eb2a9fa47acff9b31409ced47be094746354caa9f50308c8e", kill_on_drop: false }`
[INFO] [stdout] f6603b0a8100cf6eb2a9fa47acff9b31409ced47be094746354caa9f50308c8e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 47162da60bb7a5ba733aec451377db5d23b227f55933a552b9ff1b42c3f1dd5c
[INFO] running `Command { std: "docker" "start" "-a" "47162da60bb7a5ba733aec451377db5d23b227f55933a552b9ff1b42c3f1dd5c", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling bytes v1.1.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.7
[INFO] [stderr]    Compiling futures-core v0.3.17
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling typenum v1.14.0
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling futures-task v0.3.17
[INFO] [stderr]    Compiling futures-sink v0.3.17
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling anyhow v1.0.47
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling futures-channel v0.3.17
[INFO] [stderr]    Compiling block-padding v0.2.1
[INFO] [stderr]    Compiling eyre v0.6.5
[INFO] [stderr]    Compiling opaque-debug v0.3.0
[INFO] [stderr]    Compiling once_cell v1.8.0
[INFO] [stderr]    Compiling indenter v0.3.3
[INFO] [stderr]    Compiling async-trait v0.1.51
[INFO] [stderr]    Compiling percent-encoding v2.1.0
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling paste v1.0.6
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling cpufeatures v0.2.1
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling slab v0.4.5
[INFO] [stderr]    Compiling safe-proc-macro2 v1.0.24
[INFO] [stderr]    Compiling subtle v2.4.1
[INFO] [stderr]    Compiling httparse v1.5.1
[INFO] [stderr]    Compiling signature v1.4.0
[INFO] [stderr]    Compiling serde_json v1.0.71
[INFO] [stderr]    Compiling matches v0.1.9
[INFO] [stderr]    Compiling unicode-bidi v0.3.7
[INFO] [stderr]    Compiling tower-service v0.3.1
[INFO] [stderr]    Compiling futures-io v0.3.17
[INFO] [stderr]    Compiling ppv-lite86 v0.2.15
[INFO] [stderr]    Compiling try-lock v0.2.3
[INFO] [stderr]    Compiling httpdate v1.0.2
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling peg-runtime v0.7.0
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling tower-layer v0.3.1
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling keccak v0.1.0
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling half v1.8.2
[INFO] [stderr]    Compiling base64 v0.13.0
[INFO] [stderr]    Compiling sp-std v3.0.0
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]    Compiling tinyvec v1.5.1
[INFO] [stderr]    Compiling tracing-core v0.1.21
[INFO] [stderr]    Compiling itertools v0.10.1
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling ed25519 v1.3.0
[INFO] [stderr]    Compiling form_urlencoded v1.0.1
[INFO] [stderr]    Compiling http v0.2.5
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling tokio v1.14.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling unicode-normalization v0.1.19
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling flex-error v0.4.4
[INFO] [stderr]    Compiling safe-quote v1.0.9
[INFO] [stderr]    Compiling safe-regex-compiler v0.2.4
[INFO] [stderr]    Compiling mio v0.7.14
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling socket2 v0.4.2
[INFO] [stderr]    Compiling peg-macros v0.7.0
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling crossbeam-channel v0.4.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling idna v0.2.3
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling safe-regex-macro v0.2.3
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling http-body v0.4.4
[INFO] [stderr]    Compiling url v2.2.2
[INFO] [stderr]    Compiling sha2 v0.9.8
[INFO] [stderr]    Compiling ripemd160 v0.9.1
[INFO] [stderr]    Compiling sha3 v0.9.1
[INFO] [stderr]    Compiling safe-regex v0.2.4
[INFO] [stderr]    Compiling peg v0.7.0
[INFO] [stderr]    Compiling futures v0.3.17
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling tokio-macros v1.6.0
[INFO] [stderr]    Compiling zeroize_derive v1.2.2
[INFO] [stderr]    Compiling prost-derive v0.9.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.18
[INFO] [stderr]    Compiling pin-project-internal v1.0.8
[INFO] [stderr]    Compiling num-derive v0.3.3
[INFO] [stderr]    Compiling serde_repr v0.1.7
[INFO] [stderr]    Compiling async-stream-impl v0.3.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling contracts v0.4.0
[INFO] [stderr]    Compiling derive_more v0.99.16
[INFO] [stderr]    Compiling zeroize v1.4.3
[INFO] [stderr]    Compiling async-stream v0.3.2
[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-1.0.130/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=3cd8aa02388045b0 -C extra-filename=-3cd8aa02388045b0 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-9dbaaf035d6d15d1.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-0bcba2a61b67309f.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-094bea1cd0e8ee9e.rlib --extern proc_macro --cap-lints allow --cap-lints=forbid --cfg underscore_consts --cfg ptr_addr_of` (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" "47162da60bb7a5ba733aec451377db5d23b227f55933a552b9ff1b42c3f1dd5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47162da60bb7a5ba733aec451377db5d23b227f55933a552b9ff1b42c3f1dd5c", kill_on_drop: false }`
[INFO] [stdout] 47162da60bb7a5ba733aec451377db5d23b227f55933a552b9ff1b42c3f1dd5c