[INFO] fetching crate netsim-embed 0.1.0...
[INFO] checking netsim-embed-0.1.0 against try#55b3f428b4fac6790b1e8492e0b91ff2d80aec7c for pr-77035
[INFO] extracting crate netsim-embed 0.1.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate netsim-embed 0.1.0 on toolchain 55b3f428b4fac6790b1e8492e0b91ff2d80aec7c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate netsim-embed 0.1.0
[INFO] finished tweaking crates.io crate netsim-embed 0.1.0
[INFO] tweaked toml for crates.io crate netsim-embed 0.1.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate netsim-embed 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded data-encoding-macro v0.1.8
[INFO] [stderr]   Downloaded futures_codec v0.4.1
[INFO] [stderr]   Downloaded parity-multiaddr v0.9.1
[INFO] [stderr]   Downloaded libp2p-swarm v0.20.1
[INFO] [stderr]   Downloaded parity-send-wrapper v0.1.0
[INFO] [stderr]   Downloaded libp2p-tcp v0.20.0
[INFO] [stderr]   Downloaded libp2p-identify v0.20.0
[INFO] [stderr]   Downloaded uint v0.8.3
[INFO] [stderr]   Downloaded libp2p-ping v0.20.0
[INFO] [stderr]   Downloaded libipld-core v0.3.0
[INFO] [stderr]   Downloaded signature v1.1.0
[INFO] [stderr]   Downloaded libp2p-core-derive v0.20.1
[INFO] [stderr]   Downloaded libipld v0.3.0
[INFO] [stderr]   Downloaded libipld-macro v0.3.0
[INFO] [stderr]   Downloaded netsim-embed-machine v0.1.0
[INFO] [stderr]   Downloaded netsim-embed-nat v0.1.0
[INFO] [stderr]   Downloaded libp2p-mdns v0.20.0
[INFO] [stderr]   Downloaded libp2p-mplex v0.20.0
[INFO] [stderr]   Downloaded libp2p-secio v0.20.0
[INFO] [stderr]   Downloaded yamux v0.4.7
[INFO] [stderr]   Downloaded quicksink v0.1.2
[INFO] [stderr]   Downloaded libp2p-yamux v0.20.0
[INFO] [stderr]   Downloaded ed25519 v1.0.1
[INFO] [stderr]   Downloaded ed25519-dalek v1.0.0-pre.4
[INFO] [stderr]   Downloaded libp2p-core v0.20.1
[INFO] [stderr]   Downloaded cid v0.5.1
[INFO] [stderr]   Downloaded netsim-embed-router v0.1.0
[INFO] [stderr]   Downloaded libp2p v0.22.0
[INFO] [stderr]   Downloaded data-encoding-macro-internal v0.1.8
[INFO] [stderr]   Downloaded multihash v0.11.2
[INFO] [stderr]   Downloaded libp2p-kad v0.21.0
[INFO] [stderr]   Downloaded libp2p v0.21.1
[INFO] [stderr]   Downloaded ipfs-embed v0.2.0
[INFO] [stderr]   Downloaded libp2p-bitswap v0.5.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dac28bbb773e218b71d5fe2361d674073d95e69bf526385525cb2b271bf1644d
[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" "dac28bbb773e218b71d5fe2361d674073d95e69bf526385525cb2b271bf1644d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dac28bbb773e218b71d5fe2361d674073d95e69bf526385525cb2b271bf1644d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dac28bbb773e218b71d5fe2361d674073d95e69bf526385525cb2b271bf1644d", kill_on_drop: false }`
[INFO] [stdout] dac28bbb773e218b71d5fe2361d674073d95e69bf526385525cb2b271bf1644d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b0b3169807c6ef48059e19925e1c3bf1d98d8c1e55282efe4bd7210048aae2e4
[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" "b0b3169807c6ef48059e19925e1c3bf1d98d8c1e55282efe4bd7210048aae2e4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.72
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.34
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]     Checking futures-sink v0.3.5
[INFO] [stderr]     Checking futures-core v0.3.5
[INFO] [stderr]     Checking once_cell v1.4.0
[INFO] [stderr]    Compiling anyhow v1.0.31
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling ppv-lite86 v0.2.8
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking arrayref v0.3.6
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]     Checking data-encoding v2.2.1
[INFO] [stderr]     Checking smallvec v1.4.1
[INFO] [stderr]     Checking unsigned-varint v0.3.3
[INFO] [stderr]    Compiling cc v1.0.58
[INFO] [stderr]     Checking tinyvec v0.3.3
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking subtle v1.0.0
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking subtle v2.2.3
[INFO] [stderr]     Checking signature v1.1.0
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]     Checking bs58 v0.3.1
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking futures-timer v3.0.2
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]     Checking parking v1.0.5
[INFO] [stderr]     Checking scoped-tls v1.0.0
[INFO] [stderr]     Checking fastrand v1.3.3
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]     Checking pin-project-lite v0.1.7
[INFO] [stderr]    Compiling regex-syntax v0.6.18
[INFO] [stderr]     Checking base-x v0.2.6
[INFO] [stderr]     Checking pnet_base v0.26.0
[INFO] [stderr]     Checking c_linked_list v1.1.1
[INFO] [stderr]     Checking rustc-hex v2.1.0
[INFO] [stderr]     Checking gimli v0.22.0
[INFO] [stderr]     Checking nohash-hasher v0.2.0
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]     Checking instant v0.1.6
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]     Checking object v0.20.0
[INFO] [stderr]     Checking array-init v0.1.1
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking ioctl-sys v0.5.2
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]    Compiling indexmap v1.4.0
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]     Checking block-padding v0.1.5
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]     Checking blake2b_simd v0.5.10
[INFO] [stderr]     Checking blake2s_simd v0.5.10
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]     Checking lock_api v0.4.1
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking ed25519 v1.0.1
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking unicode-normalization v0.1.13
[INFO] [stderr]     Checking concurrent-queue v1.1.1
[INFO] [stderr]     Checking quicksink v0.1.2
[INFO] [stderr]     Checking pnet_macros_support v0.26.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]     Checking miniz_oxide v0.4.0
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking smallvec v0.6.13
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking socket2 v0.3.12
[INFO] [stderr]     Checking get_if_addrs v0.5.3
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]     Checking dns-parser v0.8.0
[INFO] [stderr]     Checking uint v0.8.3
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]    Compiling ring v0.16.15
[INFO] [stderr]    Compiling syntex_errors v0.42.0
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]     Checking addr2line v0.13.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking parking_lot v0.11.0
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]    Compiling prost-build v0.6.1
[INFO] [stderr]     Checking backtrace v0.3.50
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking crypto-mac v0.7.0
[INFO] [stderr]     Checking block-cipher-trait v0.6.2
[INFO] [stderr]     Checking stream-cipher v0.3.2
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]    Compiling syntex_syntax v0.42.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking aes-soft v0.3.3
[INFO] [stderr]     Checking twofish v0.2.0
[INFO] [stderr]     Checking hmac v0.7.1
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking sha2 v0.8.2
[INFO] [stderr]     Checking sha-1 v0.8.2
[INFO] [stderr]     Checking sha3 v0.8.2
[INFO] [stderr]     Checking ctr v0.3.2
[INFO] [stderr]     Checking sled v0.32.1
[INFO] [stderr]     Checking hmac-drbg v0.2.0
[INFO] [stderr]     Checking aes-ctr v0.3.0
[INFO] [stderr]     Checking multihash v0.11.2
[INFO] [stderr]     Checking libsecp256k1 v0.3.5
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling pin-project-internal v0.4.22
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling prost-derive v0.6.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling zeroize_derive v1.0.0
[INFO] [stderr]    Compiling asn1_der_derive v0.1.2
[INFO] [stderr]    Compiling data-encoding-macro-internal v0.1.8
[INFO] [stderr]    Compiling async-attributes v1.1.1
[INFO] [stderr]    Compiling libp2p-core-derive v0.20.1
[INFO] [stderr]    Compiling syntex v0.42.2
[INFO] [stderr]    Compiling pnet_macros v0.26.0
[INFO] [stderr] error: could not compile `syntex_syntax`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syntex_syntax /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syntex_syntax-0.42.0/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 -C metadata=af6274db6d35983c -C extra-filename=-af6274db6d35983c --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-395f5ce96668e04f.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-63fc77782233d131.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-516181b993b2e576.rmeta --extern rustc_serialize=/opt/rustwide/target/debug/deps/librustc_serialize-74425f941af46c4f.rmeta --extern syntex_errors=/opt/rustwide/target/debug/deps/libsyntex_errors-85d87c4b24fbc09b.rmeta --extern syntex_pos=/opt/rustwide/target/debug/deps/libsyntex_pos-ba20016a3f5c7e44.rmeta --extern term=/opt/rustwide/target/debug/deps/libterm-a5ce4393b09e43b5.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-7171387e617989c4.rmeta --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" "b0b3169807c6ef48059e19925e1c3bf1d98d8c1e55282efe4bd7210048aae2e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0b3169807c6ef48059e19925e1c3bf1d98d8c1e55282efe4bd7210048aae2e4", kill_on_drop: false }`
[INFO] [stdout] b0b3169807c6ef48059e19925e1c3bf1d98d8c1e55282efe4bd7210048aae2e4