[INFO] fetching crate exo 0.1.13...
[INFO] checking exo-0.1.13 against master#0599f3403366d9c57f0625e6de3af214b5042a90 for pr-87710
[INFO] extracting crate exo 0.1.13 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate exo 0.1.13 on toolchain 0599f3403366d9c57f0625e6de3af214b5042a90
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate exo 0.1.13
[INFO] finished tweaking crates.io crate exo 0.1.13
[INFO] tweaked toml for crates.io crate exo 0.1.13 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate exo 0.1.13 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+0599f3403366d9c57f0625e6de3af214b5042a90" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a21cc1878dbbc88e132c2ea608181ee08387cd6b1bf1a2750b0c16d2327f6d9d
[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" "a21cc1878dbbc88e132c2ea608181ee08387cd6b1bf1a2750b0c16d2327f6d9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a21cc1878dbbc88e132c2ea608181ee08387cd6b1bf1a2750b0c16d2327f6d9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a21cc1878dbbc88e132c2ea608181ee08387cd6b1bf1a2750b0c16d2327f6d9d", kill_on_drop: false }`
[INFO] [stdout] a21cc1878dbbc88e132c2ea608181ee08387cd6b1bf1a2750b0c16d2327f6d9d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+0599f3403366d9c57f0625e6de3af214b5042a90" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e4ba803929fabfd04ce107e5adaff4f019982f1fb5712bac1800a861d882fed4
[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" "e4ba803929fabfd04ce107e5adaff4f019982f1fb5712bac1800a861d882fed4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.99
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]    Compiling serde_json v1.0.66
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking fallible-iterator v0.2.0
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]    Compiling target-lexicon v0.12.2
[INFO] [stderr]    Compiling pulldown-cmark v0.8.0
[INFO] [stderr]     Checking wasmparser v0.79.0
[INFO] [stderr]    Compiling bytecount v0.6.2
[INFO] [stderr]     Checking more-asserts v0.2.1
[INFO] [stderr]    Compiling protobuf v2.25.0
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]    Compiling zstd-safe v4.1.1+zstd.1.5.0
[INFO] [stderr]    Compiling crossbeam-queue v0.3.2
[INFO] [stderr]     Checking regex-syntax v0.4.2
[INFO] [stderr]    Compiling cpp_demangle v0.3.3
[INFO] [stderr]     Checking utf8-ranges v1.0.4
[INFO] [stderr]    Compiling wasmtime-cache v0.29.0
[INFO] [stderr]     Checking downcast-rs v1.2.0
[INFO] [stderr]     Checking crc-catalog v1.1.1
[INFO] [stderr]     Checking tantivy-bitpacker v0.1.0
[INFO] [stderr]     Checking census v0.4.0
[INFO] [stderr]     Checking fastdivide v0.3.0
[INFO] [stderr]     Checking levenshtein_automata v0.2.1
[INFO] [stderr]     Checking htmlescape v0.3.1
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]    Compiling paste v1.0.5
[INFO] [stderr]     Checking number_prefix v0.4.0
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking os_str_bytes v3.1.0
[INFO] [stderr]    Compiling ahash v0.7.4
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling tokio v1.10.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]     Checking murmurhash32 v0.2.0
[INFO] [stderr]     Checking twox-hash v1.6.1
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking textwrap v0.14.2
[INFO] [stderr]     Checking http v0.2.4
[INFO] [stderr]     Checking wast v37.0.0
[INFO] [stderr]     Checking crc v2.0.0
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking crossbeam-utils v0.8.5
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking combine v4.6.0
[INFO] [stderr]     Checking bitpacking v0.8.4
[INFO] [stderr]     Checking lz4_flex v0.8.2
[INFO] [stderr]     Checking tantivy-fst v0.3.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking crossbeam-epoch v0.9.5
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling jobserver v0.1.24
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling which v4.2.2
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking socket2 v0.4.1
[INFO] [stderr]     Checking hostname v0.3.1
[INFO] [stderr]     Checking if-addrs v0.6.5
[INFO] [stderr]     Checking thread-id v3.3.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking region v2.2.0
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking memmap2 v0.3.1
[INFO] [stderr]     Checking terminal_size v0.1.17
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking errno v0.2.7
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking crossbeam v0.8.1
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]     Checking rayon-core v1.9.1
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling prost-build v0.8.0
[INFO] [stderr]    Compiling prost-build v0.7.0
[INFO] [stderr]     Checking resolv-conf v0.7.0
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking directories-next v2.0.0
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking console v0.14.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking http-body v0.4.3
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]     Checking indicatif v0.16.2
[INFO] [stderr]     Checking lru v0.6.6
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling blake3 v0.3.8
[INFO] [stderr]    Compiling libz-sys v1.1.3
[INFO] [stderr]    Compiling zstd-sys v1.6.1+zstd.1.5.0
[INFO] [stderr]    Compiling wasmtime-fiber v0.29.0
[INFO] [stderr]    Compiling backtrace v0.3.61
[INFO] [stderr]    Compiling wasmtime-runtime v0.29.0
[INFO] [stderr]    Compiling bzip2-sys v0.1.11+1.0.8
[INFO] [stderr]    Compiling psm v0.1.15
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking petname v1.1.1
[INFO] [stderr]     Checking flate2 v1.0.20
[INFO] [stderr]     Checking bzip2 v0.4.3
[INFO] [stderr]     Checking wat v1.0.39
[INFO] [stderr]    Compiling synstructure v0.12.5
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking webpki v0.21.4
[INFO] [stderr]     Checking sct v0.6.1
[INFO] [stderr]     Checking tantivy-query-grammar v0.15.0
[INFO] [stderr]     Checking webpki-roots v0.21.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling futures-macro v0.3.16
[INFO] [stderr]    Compiling prost-derive v0.8.0
[INFO] [stderr]    Compiling zeroize_derive v1.1.0
[INFO] [stderr]    Compiling tokio-macros v1.3.0
[INFO] [stderr]    Compiling pin-project-internal v0.4.28
[INFO] [stderr]    Compiling pin-project-internal v1.0.8
[INFO] [stderr]    Compiling prost-derive v0.7.0
[INFO] [stderr]    Compiling async-trait v0.1.51
[INFO] [stderr]    Compiling enum-as-inner v0.3.3
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling libp2p-swarm-derive v0.24.0
[INFO] [stderr]    Compiling scroll_derive v0.10.5
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.4
[INFO] [stderr]     Checking zeroize v1.3.0
[INFO] [stderr]     Checking curve25519-dalek v3.2.0
[INFO] [stderr]     Checking chacha20 v0.7.2
[INFO] [stderr]     Checking dialoguer v0.8.0
[INFO] [stderr]     Checking futures-util v0.3.16
[INFO] [stderr]     Checking chacha20poly1305 v0.8.1
[INFO] [stderr]     Checking x25519-dalek v1.1.1
[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-1.0.127/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=10ac3cf33ca64b59 -C extra-filename=-10ac3cf33ca64b59 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-9e362ce2dbd30bab.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-521c66c7418171c1.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-3935082a7f25debd.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] The following warnings were emitted during compilation:
[INFO] [stderr] 
[INFO] [stderr] warning: cc: fatal error: Killed signal terminated program cc1
[INFO] [stderr] warning: compilation terminated.
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "e4ba803929fabfd04ce107e5adaff4f019982f1fb5712bac1800a861d882fed4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4ba803929fabfd04ce107e5adaff4f019982f1fb5712bac1800a861d882fed4", kill_on_drop: false }`
[INFO] [stdout] e4ba803929fabfd04ce107e5adaff4f019982f1fb5712bac1800a861d882fed4