[INFO] cloning repository https://github.com/asobininn/lib2p2-ping-example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/asobininn/lib2p2-ping-example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fasobininn%2Flib2p2-ping-example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fasobininn%2Flib2p2-ping-example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 00964558232fb6f8feb1ed4abe0028cc956cf4c3
[INFO] checking asobininn/lib2p2-ping-example against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fasobininn%2Flib2p2-ping-example" "/workspace/builds/worker-38/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-38/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/asobininn/lib2p2-ping-example on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/asobininn/lib2p2-ping-example
[INFO] finished tweaking git repo https://github.com/asobininn/lib2p2-ping-example
[INFO] tweaked toml for git repo https://github.com/asobininn/lib2p2-ping-example written to /workspace/builds/worker-38/source/Cargo.toml
[INFO] crate git repo https://github.com/asobininn/lib2p2-ping-example already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "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 sha-1 v0.9.5
[INFO] [stderr]   Downloaded sha2 v0.9.4
[INFO] [stderr]   Downloaded async-std-resolver v0.20.2
[INFO] [stderr]   Downloaded trust-dns-proto v0.20.2
[INFO] [stderr]   Downloaded trust-dns-resolver v0.20.2
[INFO] [stderr]   Downloaded multihash-derive v0.7.1
[INFO] [stderr]   Downloaded cpufeatures v0.1.1
[INFO] [stderr]   Downloaded value-bag v1.0.0-alpha.6
[INFO] [stderr]   Downloaded futures-executor v0.3.14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aff77c7823579c338a45d81549344ba7a1d50f4c37d33c64b1504d6a6a9cd4bc
[INFO] running `Command { std: "docker" "start" "-a" "aff77c7823579c338a45d81549344ba7a1d50f4c37d33c64b1504d6a6a9cd4bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aff77c7823579c338a45d81549344ba7a1d50f4c37d33c64b1504d6a6a9cd4bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aff77c7823579c338a45d81549344ba7a1d50f4c37d33c64b1504d6a6a9cd4bc", kill_on_drop: false }`
[INFO] [stdout] aff77c7823579c338a45d81549344ba7a1d50f4c37d33c64b1504d6a6a9cd4bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b9539ede3a42fae13e0fa16a02bcc857c7452c3fd4857beb29d05d708e63f8a6
[INFO] running `Command { std: "docker" "start" "-a" "b9539ede3a42fae13e0fa16a02bcc857c7452c3fd4857beb29d05d708e63f8a6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.6
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]     Checking futures-core v0.3.14
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling anyhow v1.0.40
[INFO] [stderr]     Checking futures-io v0.3.14
[INFO] [stderr]     Checking pin-project-lite v0.2.6
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]     Checking slab v0.4.3
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling ahash v0.4.7
[INFO] [stderr]    Compiling bytes v1.0.1
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]     Checking futures-sink v0.3.14
[INFO] [stderr]    Compiling multimap v0.8.3
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking futures-task v0.3.14
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking subtle v2.4.0
[INFO] [stderr]     Checking block-padding v0.2.1
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking cpufeatures v0.1.1
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]    Compiling pin-project-internal v0.4.28
[INFO] [stderr]     Checking subtle v1.0.0
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]     Checking data-encoding v2.3.2
[INFO] [stderr]     Checking unsigned-varint v0.5.1
[INFO] [stderr]     Checking arrayref v0.3.6
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking signature v1.3.0
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking bs58 v0.4.0
[INFO] [stderr]     Checking futures-timer v3.0.2
[INFO] [stderr]     Checking asn1_der v0.7.4
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]     Checking waker-fn v1.1.0
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]     Checking fastrand v1.4.1
[INFO] [stderr]     Checking event-listener v2.5.1
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.73
[INFO] [stderr]     Checking ipnet v2.3.0
[INFO] [stderr]    Compiling bumpalo v3.6.1
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]     Checking async-task v4.0.3
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]     Checking cpuid-bool v0.2.0
[INFO] [stderr]    Compiling async-trait v0.1.50
[INFO] [stderr]     Checking atomic-waker v1.0.0
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling wasm-bindgen v0.2.73
[INFO] [stderr]     Checking match_cfg v0.1.0
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]    Compiling httparse v1.4.0
[INFO] [stderr]     Checking nohash-hasher v0.2.0
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking keccak v0.1.0
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking pin-project-lite v0.1.12
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking parity-send-wrapper v0.1.0
[INFO] [stderr]     Checking hex_fmt v0.3.0
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking unicode-bidi v0.3.5
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stderr]    Compiling crossbeam-utils v0.8.4
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling atomic v0.5.0
[INFO] [stderr]    Compiling snow v0.7.2
[INFO] [stderr] error: could not compile `proc-macro2`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name build_script_build --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-1.0.26/build.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' --cfg 'feature="proc-macro"' --cfg 'feature="span-locations"' -C metadata=73ce5327a7680348 -C extra-filename=-73ce5327a7680348 --out-dir /opt/rustwide/target/debug/build/proc-macro2-73ce5327a7680348 -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" "b9539ede3a42fae13e0fa16a02bcc857c7452c3fd4857beb29d05d708e63f8a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9539ede3a42fae13e0fa16a02bcc857c7452c3fd4857beb29d05d708e63f8a6", kill_on_drop: false }`
[INFO] [stdout] b9539ede3a42fae13e0fa16a02bcc857c7452c3fd4857beb29d05d708e63f8a6