[INFO] cloning repository https://github.com/pjox/ungoliant
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pjox/ungoliant" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpjox%2Fungoliant", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpjox%2Fungoliant'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6f1571516fd3337fe8fe9e6c533144e73d2d7017
[INFO] checking pjox/ungoliant against master#ce1a7e41f96be27103b6e3ba09dcefbf5bd320bd for pr-103914
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpjox%2Fungoliant" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pjox/ungoliant on toolchain ce1a7e41f96be27103b6e3ba09dcefbf5bd320bd
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce1a7e41f96be27103b6e3ba09dcefbf5bd320bd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/pjox/ungoliant
[INFO] finished tweaking git repo https://github.com/pjox/ungoliant
[INFO] tweaked toml for git repo https://github.com/pjox/ungoliant written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/pjox/ungoliant already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce1a7e41f96be27103b6e3ba09dcefbf5bd320bd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded avro-rs v0.13.0
[INFO] [stderr]   Downloaded typed-builder v0.5.1
[INFO] [stderr]   Downloaded ut1_blocklist v0.1.0
[INFO] [stderr]   Downloaded warc v0.3.0
[INFO] [stderr]   Downloaded libflate v1.1.2
[INFO] [stderr]   Downloaded runiq-lib v1.2.2
[INFO] [stderr]   Downloaded cfasttext-sys v0.6.0
[INFO] [stderr]   Downloaded fasttext v0.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:83125433e4fff17b1ac56874832f668d9df75ee638575aca552b68e127bedee9" "/opt/rustwide/cargo-home/bin/cargo" "+ce1a7e41f96be27103b6e3ba09dcefbf5bd320bd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fd17d2e0975fa2d26c00fbc9e532e7f8b72917fa2fc358664f4022c4b62949d8
[INFO] running `Command { std: "docker" "start" "-a" "fd17d2e0975fa2d26c00fbc9e532e7f8b72917fa2fc358664f4022c4b62949d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fd17d2e0975fa2d26c00fbc9e532e7f8b72917fa2fc358664f4022c4b62949d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd17d2e0975fa2d26c00fbc9e532e7f8b72917fa2fc358664f4022c4b62949d8", kill_on_drop: false }`
[INFO] [stdout] fd17d2e0975fa2d26c00fbc9e532e7f8b72917fa2fc358664f4022c4b62949d8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:83125433e4fff17b1ac56874832f668d9df75ee638575aca552b68e127bedee9" "/opt/rustwide/cargo-home/bin/cargo" "+ce1a7e41f96be27103b6e3ba09dcefbf5bd320bd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b3f4ed4a473c29fd65976be5af0828813b2b7857a03871b68361effd89a6ef10
[INFO] running `Command { std: "docker" "start" "-a" "b3f4ed4a473c29fd65976be5af0828813b2b7857a03871b68361effd89a6ef10", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]     Checking unic-common v0.9.0
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]     Checking unic-char-range v0.9.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking unic-ucd-version v0.9.0
[INFO] [stderr]     Checking itoa v1.0.1
[INFO] [stderr]     Checking unic-char-property v0.9.0
[INFO] [stderr]     Checking pin-project-lite v0.2.8
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]     Checking once_cell v1.9.0
[INFO] [stderr]    Compiling libm v0.2.2
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]     Checking ryu v1.0.9
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking lock_api v0.4.6
[INFO] [stderr]     Checking matches v0.1.9
[INFO] [stderr]    Compiling parking_lot_core v0.9.1
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking getrandom v0.2.5
[INFO] [stderr]     Checking futures-sink v0.3.21
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.7
[INFO] [stderr]     Checking futures-io v0.3.21
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking parking_lot v0.12.0
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking mio v0.8.0
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking slab v0.4.5
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]     Checking tinyvec v1.5.1
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]    Compiling semver v1.0.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.7
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking http v0.2.6
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking tracing-core v0.1.22
[INFO] [stderr]    Compiling httparse v1.6.0
[INFO] [stderr]     Checking unicode-bidi v0.3.7
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]    Compiling rustls v0.20.4
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking tracing v0.1.31
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]    Compiling cmake v0.1.48
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking rle-decode-fast v1.0.3
[INFO] [stderr]    Compiling build_const v0.2.2
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking http-body v0.4.4
[INFO] [stderr]     Checking libflate_lz77 v1.1.0
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling cfasttext-sys v0.6.0
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking webpki v0.22.0
[INFO] [stderr]     Checking sct v0.7.0
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.2
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking unic-ucd-hangul v0.9.0
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]     Checking tower-service v0.3.1
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking httpdate v1.0.2
[INFO] [stderr]    Compiling encoding_rs v0.8.30
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking libflate v1.1.2
[INFO] [stderr]    Compiling serde_derive_internals v0.25.0
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking unic-ucd-category v0.9.0
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]    Compiling schemars v0.8.8
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking siphasher v0.2.3
[INFO] [stderr]     Checking fastrand v1.7.0
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking cpufeatures v0.2.1
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]     Checking tempfile v3.3.0
[INFO] [stderr]     Checking rustls-pemfile v0.2.1
[INFO] [stderr]     Checking scalable_bloom_filter v0.1.1
[INFO] [stderr]     Checking unic-ucd-normal v0.9.0
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking snap v0.2.5
[INFO] [stderr]     Checking twox-hash v1.6.2
[INFO] [stderr]     Checking unic-ucd-name v0.9.0
[INFO] [stderr]     Checking webpki-roots v0.22.2
[INFO] [stderr]     Checking unic-ucd-bidi v0.9.0
[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-1.0.86/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 -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=6ae06d0f3e626970 -C extra-filename=-6ae06d0f3e626970 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-d937f1f82ffb437d.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-4040e84c0ddb8645.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-3c8a88541efd8c80.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" "b3f4ed4a473c29fd65976be5af0828813b2b7857a03871b68361effd89a6ef10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3f4ed4a473c29fd65976be5af0828813b2b7857a03871b68361effd89a6ef10", kill_on_drop: false }`
[INFO] [stdout] b3f4ed4a473c29fd65976be5af0828813b2b7857a03871b68361effd89a6ef10