[INFO] cloning repository https://github.com/Matin-Delta/delta
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Matin-Delta/delta" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMatin-Delta%2Fdelta", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMatin-Delta%2Fdelta'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 32b2ae17c26c22aca054ec51394161d6da29c0b2
[INFO] documenting Matin-Delta/delta against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMatin-Delta%2Fdelta" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Matin-Delta/delta on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Matin-Delta/delta
[INFO] finished tweaking git repo https://github.com/Matin-Delta/delta
[INFO] tweaked toml for git repo https://github.com/Matin-Delta/delta written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/Matin-Delta/delta already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5672ad441b920c084dcdf5be34eeb8d10906e9ccd5755d9730d2d257429a1b80
[INFO] running `Command { std: "docker" "start" "-a" "5672ad441b920c084dcdf5be34eeb8d10906e9ccd5755d9730d2d257429a1b80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5672ad441b920c084dcdf5be34eeb8d10906e9ccd5755d9730d2d257429a1b80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5672ad441b920c084dcdf5be34eeb8d10906e9ccd5755d9730d2d257429a1b80", kill_on_drop: false }`
[INFO] [stdout] 5672ad441b920c084dcdf5be34eeb8d10906e9ccd5755d9730d2d257429a1b80
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eb9604ba9b18534ff808cf5cef796fddff1d4d423a62b45d154ea7cbe3a7034b
[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" "eb9604ba9b18534ff808cf5cef796fddff1d4d423a62b45d154ea7cbe3a7034b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.102
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling futures-core v0.3.17
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]     Checking slab v0.4.4
[INFO] [stderr]    Compiling futures-task v0.3.17
[INFO] [stderr]    Compiling futures-channel v0.3.17
[INFO] [stderr]     Checking futures-io v0.3.17
[INFO] [stderr]     Checking futures-sink v0.3.17
[INFO] [stderr]     Checking unicode-bidi v0.3.6
[INFO] [stderr]    Compiling typenum v1.14.0
[INFO] [stderr]    Compiling serde_json v1.0.68
[INFO] [stderr]    Compiling async-trait v0.1.51
[INFO] [stderr]    Compiling pin-project-lite v0.2.7
[INFO] [stderr]    Compiling openssl v0.10.36
[INFO] [stderr]    Compiling signal-hook v0.3.10
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling rustversion v1.0.5
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]    Compiling radium v0.5.3
[INFO] [stderr]     Checking unicode-xid v0.2.2
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling siphasher v0.3.7
[INFO] [stderr]     Checking sha1 v0.6.0
[INFO] [stderr]     Checking dtoa v0.4.8
[INFO] [stderr]     Checking spin v0.9.2
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking version_check v0.9.3
[INFO] [stderr]    Compiling validator_types v0.11.0
[INFO] [stderr]     Checking utf-8 v0.7.6
[INFO] [stderr]    Compiling if_chain v1.0.2
[INFO] [stderr]     Checking quoted_printable v0.4.3
[INFO] [stderr]     Checking many-to-many v0.1.7
[INFO] [stderr]     Checking base32 v0.4.0
[INFO] [stderr]     Checking impl_ops v0.1.1
[INFO] [stderr]     Checking bitfield v0.13.2
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.7
[INFO] [stderr]    Compiling futures-macro v0.3.17
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling tokio v1.11.0
[INFO] [stderr]     Checking tracing-core v0.1.20
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]     Checking instant v0.1.10
[INFO] [stderr]    Compiling cookie v0.15.1
[INFO] [stderr]    Compiling figment v0.10.6
[INFO] [stderr]    Compiling multer v2.0.1
[INFO] [stderr]    Compiling atomic v0.5.0
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling nom v6.1.2
[INFO] [stderr]     Checking http v0.2.4
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling backtrace v0.3.61
[INFO] [stderr]     Checking input_buffer v0.3.1
[INFO] [stderr]     Checking tinyvec v1.4.0
[INFO] [stderr]    Compiling rocket v0.5.0-rc.1
[INFO] [stderr]    Compiling openssl-sys v0.9.66
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling lock_api v0.4.5
[INFO] [stderr]     Checking lru-cache v0.1.2
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking base64 v0.7.0
[INFO] [stderr]    Compiling phf_shared v0.9.0
[INFO] [stderr]     Checking proc-macro2 v1.0.29
[INFO] [stderr]     Checking blake2b_simd v0.5.11
[INFO] [stderr]    Compiling httparse v1.5.1
[INFO] [stderr]     Checking ryu v1.0.5
[INFO] [stderr]     Checking crossbeam-utils v0.8.5
[INFO] [stderr]     Checking encoding_rs v0.8.28
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]    Compiling standback v0.2.17
[INFO] [stderr]     Checking unicase v2.6.0
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]     Checking quote v1.0.9
[INFO] [stderr]     Checking async-channel v1.6.1
[INFO] [stderr]     Checking futures-lite v1.12.0
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking object v0.26.2
[INFO] [stderr]     Checking twoway v0.2.2
[INFO] [stderr]     Checking stable-pattern v0.1.0
[INFO] [stderr]     Checking linkify v0.6.0
[INFO] [stderr]     Checking http-body v0.3.1
[INFO] [stderr]     Checking http-body v0.4.3
[INFO] [stderr]     Checking num-integer v0.1.44
[INFO] [stderr]     Checking rmp v0.8.10 (https://github.com/insertish/msgpack-rust?rev=5bf2c24203ad422233cf35b7b7bfad9f7e811814#5bf2c242)
[INFO] [stderr]     Checking rust-argon2 v0.8.3
[INFO] [stderr]     Checking bitvec v0.19.5
[INFO] [stderr]     Checking syn v1.0.76
[INFO] [stderr]    Compiling ctor v0.1.21
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling tokio-macros v1.3.0
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]    Compiling proc-macro2-diagnostics v0.9.1
[INFO] [stderr]    Compiling time-macros-impl v0.1.2
[INFO] [stderr]    Compiling pin-project-internal v1.0.8
[INFO] [stderr]    Compiling thiserror-impl v1.0.29
[INFO] [stderr]    Compiling ref-cast-impl v1.0.6
[INFO] [stderr]    Compiling async-attributes v1.1.2
[INFO] [stderr]    Compiling darling_core v0.13.0
[INFO] [stderr]    Compiling enum-as-inner v0.3.3
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling synstructure v0.12.5
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling async-stream-impl v0.3.2
[INFO] [stderr]    Compiling typed-builder v0.4.1
[INFO] [stderr]    Compiling mime_guess v2.0.3
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling native-tls v0.2.8
[INFO] [stderr]     Checking idna v0.2.3
[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-1.0.76/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata -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"' --cfg 'feature="visit-mut"' -C metadata=6685817c8c26f148 -C extra-filename=-6685817c8c26f148 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-4861ff1a43c79cbd.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-e4368e069ba646e3.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-54c6f52fa42f020a.rmeta --cap-lints allow --cfg syn_disable_nightly_tests` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "eb9604ba9b18534ff808cf5cef796fddff1d4d423a62b45d154ea7cbe3a7034b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb9604ba9b18534ff808cf5cef796fddff1d4d423a62b45d154ea7cbe3a7034b", kill_on_drop: false }`
[INFO] [stdout] eb9604ba9b18534ff808cf5cef796fddff1d4d423a62b45d154ea7cbe3a7034b