[INFO] fetching crate ursa 0.3.6...
[INFO] checking ursa-0.3.6 against try#7c3a44cf5f95fa5cf164a312bdcf845157af7093 for pr-77325
[INFO] extracting crate ursa 0.3.6 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate ursa 0.3.6 on toolchain 7c3a44cf5f95fa5cf164a312bdcf845157af7093
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7c3a44cf5f95fa5cf164a312bdcf845157af7093" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ursa 0.3.6
[INFO] finished tweaking crates.io crate ursa 0.3.6
[INFO] tweaked toml for crates.io crate ursa 0.3.6 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7c3a44cf5f95fa5cf164a312bdcf845157af7093" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7c3a44cf5f95fa5cf164a312bdcf845157af7093" "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 hkdf v0.8.0
[INFO] [stderr]   Downloaded sha2-asm v0.5.5
[INFO] [stderr]   Downloaded libsodium-ffi v0.2.2
[INFO] [stderr]   Downloaded glass_pumpkin v0.4.0
[INFO] [stderr]   Downloaded c2-chacha v0.2.4
[INFO] [stderr]   Downloaded amcl_wrapper v0.4.0
[INFO] [stderr]   Downloaded bytebuffer-rs v0.3.1
[INFO] [stderr]   Downloaded int_traits v0.1.1
[INFO] [stderr]   Downloaded amcl v0.2.0
[INFO] [stderr]   Downloaded miracl_core v1.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7c3a44cf5f95fa5cf164a312bdcf845157af7093" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fda0e4f56e0975aaff0e5ef3a1b73f9b0933ab5f9dedc23b956f07b9753dd341
[INFO] running `Command { std: "docker" "start" "-a" "fda0e4f56e0975aaff0e5ef3a1b73f9b0933ab5f9dedc23b956f07b9753dd341", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fda0e4f56e0975aaff0e5ef3a1b73f9b0933ab5f9dedc23b956f07b9753dd341", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fda0e4f56e0975aaff0e5ef3a1b73f9b0933ab5f9dedc23b956f07b9753dd341", kill_on_drop: false }`
[INFO] [stdout] fda0e4f56e0975aaff0e5ef3a1b73f9b0933ab5f9dedc23b956f07b9753dd341
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7c3a44cf5f95fa5cf164a312bdcf845157af7093" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b5b21ba96395209441708a388984d2b6d62d3c4cb9fc5661326642af4e0dc629
[INFO] running `Command { std: "docker" "start" "-a" "b5b21ba96395209441708a388984d2b6d62d3c4cb9fc5661326642af4e0dc629", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]     Checking subtle v2.4.0
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]     Checking wyz v0.2.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking radium v0.3.0
[INFO] [stderr]     Checking funty v1.1.0
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking const-oid v0.4.5
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking cpuid-bool v0.2.0
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking cpufeatures v0.1.4
[INFO] [stderr]     Checking keccak v0.1.0
[INFO] [stderr]    Compiling unwrap v1.2.1
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking miracl_core v1.0.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking amcl v0.2.0
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking int_traits v0.1.1
[INFO] [stderr]    Compiling libz-sys v1.1.3
[INFO] [stderr]    Compiling clang-sys v0.28.1
[INFO] [stderr]    Compiling bzip2-sys v0.1.11+1.0.8
[INFO] [stderr]    Compiling curl-sys v0.4.44+curl-7.77.0
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling secp256k1-sys v0.3.0
[INFO] [stderr]     Checking bytebuffer-rs v0.3.1
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stderr]    Compiling libc v0.2.96
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking der v0.1.0
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[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]    Compiling syn v1.0.73
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking cipher v0.2.5
[INFO] [stderr]     Checking universal-hash v0.4.0
[INFO] [stderr]     Checking crypto-mac v0.10.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking aead v0.3.2
[INFO] [stderr]     Checking crypto-mac v0.8.0
[INFO] [stderr]     Checking c2-chacha v0.2.4
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking bitvec v0.18.5
[INFO] [stderr]     Checking pkcs8 v0.3.3
[INFO] [stderr]     Checking hmac v0.7.1
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]     Checking sha3 v0.8.2
[INFO] [stderr]     Checking sha2 v0.8.2
[INFO] [stderr]     Checking polyval v0.4.5
[INFO] [stderr]     Checking poly1305 v0.6.2
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking hmac v0.10.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking sha2 v0.9.5
[INFO] [stderr]     Checking aes-soft v0.6.4
[INFO] [stderr]     Checking ctr v0.6.0
[INFO] [stderr]     Checking block-modes v0.7.0
[INFO] [stderr]     Checking blake2 v0.9.1
[INFO] [stderr]    Compiling openssl-sys v0.9.63
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]     Checking hkdf v0.8.0
[INFO] [stderr]     Checking ghash v0.3.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling socket2 v0.4.0
[INFO] [stderr]    Compiling xattr v0.2.2
[INFO] [stderr]    Compiling filetime v0.2.14
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling bindgen v0.52.0
[INFO] [stderr]     Checking object v0.25.2
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking aes v0.6.0
[INFO] [stderr]     Checking signature v1.2.2
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]    Compiling tar v0.4.35
[INFO] [stderr]    Compiling semver-parser v0.10.2
[INFO] [stderr]     Checking aes-gcm v0.8.0
[INFO] [stderr]     Checking ed25519 v1.1.1
[INFO] [stderr]    Compiling bzip2 v0.4.3
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling openssl v0.10.34
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]    Compiling flate2 v1.0.20
[INFO] [stderr]    Compiling rustc_version v0.3.3
[INFO] [stderr]     Checking plotters v0.3.0
[INFO] [stderr]    Compiling cexpr v0.3.6
[INFO] [stderr] error: could not compile `syn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-1.0.73/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 --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' -C metadata=6c431614adb78734 -C extra-filename=-6c431614adb78734 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-223cc1bf4c7d615f.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-9c9c6fb7ecc8d1ce.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-44670c754cca1080.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" "b5b21ba96395209441708a388984d2b6d62d3c4cb9fc5661326642af4e0dc629", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5b21ba96395209441708a388984d2b6d62d3c4cb9fc5661326642af4e0dc629", kill_on_drop: false }`
[INFO] [stdout] b5b21ba96395209441708a388984d2b6d62d3c4cb9fc5661326642af4e0dc629