[INFO] cloning repository https://github.com/CalebEverett/rust-blockchain
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CalebEverett/rust-blockchain" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCalebEverett%2Frust-blockchain", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCalebEverett%2Frust-blockchain'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d489393266bb8742b487f231d14042da0de569fd
[INFO] checking CalebEverett/rust-blockchain against try#8a0378607d6b34c242e3bfa75554871be641864b for pr-143028
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCalebEverett%2Frust-blockchain" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/CalebEverett/rust-blockchain
[INFO] finished tweaking git repo https://github.com/CalebEverett/rust-blockchain
[INFO] tweaked toml for git repo https://github.com/CalebEverett/rust-blockchain written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/CalebEverett/rust-blockchain on toolchain 8a0378607d6b34c242e3bfa75554871be641864b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8a0378607d6b34c242e3bfa75554871be641864b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/CalebEverett/rust-blockchain already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8a0378607d6b34c242e3bfa75554871be641864b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8a0378607d6b34c242e3bfa75554871be641864b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7fc99f260430d11bf3904b0ecbf553772ef88aeb4ef0822b21af88f707bf2b21
[INFO] running `Command { std: "docker" "start" "-a" "7fc99f260430d11bf3904b0ecbf553772ef88aeb4ef0822b21af88f707bf2b21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7fc99f260430d11bf3904b0ecbf553772ef88aeb4ef0822b21af88f707bf2b21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fc99f260430d11bf3904b0ecbf553772ef88aeb4ef0822b21af88f707bf2b21", kill_on_drop: false }`
[INFO] [stdout] 7fc99f260430d11bf3904b0ecbf553772ef88aeb4ef0822b21af88f707bf2b21
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "RUSTDOCFLAGS=--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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8a0378607d6b34c242e3bfa75554871be641864b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c6f4e264268ecb5cd558b6b255f8d42b41754a7c10e44a74d1eace6b9f37ffa1
[INFO] running `Command { std: "docker" "start" "-a" "c6f4e264268ecb5cd558b6b255f8d42b41754a7c10e44a74d1eace6b9f37ffa1", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling libc v0.2.102
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking pin-project-lite v0.2.7
[INFO] [stderr]    Compiling cc v1.0.70
[INFO] [stderr]    Compiling futures-core v0.3.17
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling serde_json v1.0.68
[INFO] [stderr]     Checking instant v0.1.10
[INFO] [stderr]     Checking lexical-util v0.8.1
[INFO] [stderr]     Checking futures-sink v0.3.17
[INFO] [stderr]    Compiling futures-channel v0.3.17
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling ahash v0.7.4
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling futures-macro v0.3.17
[INFO] [stderr]    Compiling futures-task v0.3.17
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling radium v0.6.2
[INFO] [stderr]    Compiling typenum v1.14.0
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling tokio v1.12.0
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]     Checking lock_api v0.4.5
[INFO] [stderr]     Checking futures-io v0.3.17
[INFO] [stderr]     Checking rustc-hex v2.1.0
[INFO] [stderr]     Checking funty v1.1.0
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking parking_lot_core v0.8.5
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking slab v0.4.4
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking wyz v0.2.0
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking rlp v0.5.1
[INFO] [stderr]     Checking lexical-write-integer v0.8.0
[INFO] [stderr]     Checking lexical-parse-integer v0.8.0
[INFO] [stderr]    Compiling num-bigint v0.4.2
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking bitvec v0.20.4
[INFO] [stderr]    Compiling openssl-sys v0.9.67
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking arrayvec v0.7.1
[INFO] [stderr]    Compiling anyhow v1.0.44
[INFO] [stderr]     Checking byte-slice-cast v1.1.0
[INFO] [stderr]     Checking lexical-parse-float v0.8.0
[INFO] [stderr]     Checking lexical-write-float v0.8.0
[INFO] [stderr]     Checking http v0.2.5
[INFO] [stderr]     Checking impl-rlp v0.3.0
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]     Checking block-padding v0.2.1
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]    Compiling openssl v0.10.36
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]     Checking uint v0.9.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling native-tls v0.2.8
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]    Compiling httparse v1.5.1
[INFO] [stderr]     Checking matches v0.1.9
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking tinyvec v1.4.0
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking lexical-core v0.8.0
[INFO] [stderr]     Checking num-complex v0.4.0
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking tracing-core v0.1.20
[INFO] [stderr]     Checking strength_reduce v0.2.3
[INFO] [stderr]     Checking streaming-iterator v0.1.5
[INFO] [stderr]     Checking hash_hasher v2.0.3
[INFO] [stderr]     Checking fixed-hash v0.7.0
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking openssl-probe v0.1.4
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking term v0.5.2
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]     Checking unicode-bidi v0.3.6
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]     Checking tracing v0.1.28
[INFO] [stderr]     Checking encode_unicode v0.3.6
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]    Compiling secp256k1-sys v0.4.1
[INFO] [stderr]     Checking dirs-sys v0.3.6
[INFO] [stderr]     Checking socket2 v0.4.2
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stderr]     Checking tower-service v0.3.1
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]     Checking cpufeatures v0.2.1
[INFO] [stderr]     Checking httpdate v1.0.1
[INFO] [stderr]    Compiling encoding_rs v0.8.28
[INFO] [stderr]     Checking unsafe_unwrap v0.1.0
[INFO] [stderr]     Checking keccak v0.1.0
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking sha-1 v0.9.8
[INFO] [stderr]     Checking sha3 v0.9.1
[INFO] [stderr]     Checking dirs v3.0.2
[INFO] [stderr]     Checking lexical v6.0.0
[INFO] [stderr]     Checking memmap2 v0.2.3
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]    Compiling rustversion v1.0.5
[INFO] [stderr]     Checking ipnet v2.3.1
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr] error: could not compile `syn` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/8a0378607d6b34c242e3bfa75554871be641864b/bin/rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-1.0.76/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="fold"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' --cfg 'feature="visit-mut"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("clone-impls", "default", "derive", "extra-traits", "fold", "full", "parsing", "printing", "proc-macro", "quote", "test", "visit", "visit-mut"))' -C metadata=22fabd18c6dd0d9a -C extra-filename=-c2ebf49da63983e3 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-af190eefa8a5a4ca.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-ce8f5b993b415f1c.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-9a308e948d49b175.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "c6f4e264268ecb5cd558b6b255f8d42b41754a7c10e44a74d1eace6b9f37ffa1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6f4e264268ecb5cd558b6b255f8d42b41754a7c10e44a74d1eace6b9f37ffa1", kill_on_drop: false }`
[INFO] [stdout] c6f4e264268ecb5cd558b6b255f8d42b41754a7c10e44a74d1eace6b9f37ffa1