[INFO] fetching crate phil-core 0.4.0...
[INFO] documenting phil-core-0.4.0 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate phil-core 0.4.0 into /workspace/builds/worker-73/source
[INFO] validating manifest of crates.io crate phil-core 0.4.0 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate phil-core 0.4.0
[INFO] finished tweaking crates.io crate phil-core 0.4.0
[INFO] tweaked toml for crates.io crate phil-core 0.4.0 written to /workspace/builds/worker-73/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "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-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f40917a6e36b513cab2f2fba92cda8c106e6dec1ad57cadf087b95355b241fd8
[INFO] running `Command { std: "docker" "start" "-a" "f40917a6e36b513cab2f2fba92cda8c106e6dec1ad57cadf087b95355b241fd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f40917a6e36b513cab2f2fba92cda8c106e6dec1ad57cadf087b95355b241fd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f40917a6e36b513cab2f2fba92cda8c106e6dec1ad57cadf087b95355b241fd8", kill_on_drop: false }`
[INFO] [stdout] f40917a6e36b513cab2f2fba92cda8c106e6dec1ad57cadf087b95355b241fd8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 10e4459f1537555d9ae64eb124910276b7af2007a1241a04e42d230d756f30e9
[INFO] running `Command { std: "docker" "start" "-a" "10e4459f1537555d9ae64eb124910276b7af2007a1241a04e42d230d756f30e9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]     Checking futures-io v0.3.16
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]    Compiling serde_json v1.0.66
[INFO] [stderr]    Compiling string_cache_shared v0.3.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking fastrand v1.5.0
[INFO] [stderr]    Compiling httparse v1.3.6
[INFO] [stderr]    Compiling rustversion v1.0.5
[INFO] [stderr]     Checking new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]     Checking mac v0.1.1
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]     Checking utf-8 v0.7.6
[INFO] [stderr]     Checking precomputed-hash v0.1.1
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking ucd-trie v0.1.3
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]     Checking subtle v1.0.0
[INFO] [stderr]    Compiling hyperx v1.3.0
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking base64 v0.11.0
[INFO] [stderr]     Checking language-tags v0.2.2
[INFO] [stderr]     Checking version_check v0.9.3
[INFO] [stderr]     Checking rs-release v0.1.7
[INFO] [stderr]     Checking take_mut v0.2.2
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.7
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling futures-util v0.3.16
[INFO] [stderr]     Checking lru-cache v0.1.2
[INFO] [stderr]     Checking async-lock v2.4.0
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking generic-array v0.12.4
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking async-channel v1.6.1
[INFO] [stderr]     Checking socket2 v0.4.1
[INFO] [stderr]     Checking object v0.26.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking hostname v0.3.1
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking dirs-sys v0.3.6
[INFO] [stderr]     Checking stringprep v0.1.2
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking flate2 v1.0.20
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]     Checking block-padding v0.1.5
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking futures-lite v1.12.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking futf v0.1.4
[INFO] [stderr]     Checking pest v2.1.3
[INFO] [stderr]     Checking dirs v3.0.2
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking crypto-mac v0.7.0
[INFO] [stderr]     Checking async-compression v0.3.8
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking resolv-conf v0.7.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand_pcg v0.2.1
[INFO] [stderr]     Checking phf v0.7.24
[INFO] [stderr]     Checking tendril v0.4.2
[INFO] [stderr]     Checking pbkdf2 v0.3.0
[INFO] [stderr]     Checking hmac v0.7.1
[INFO] [stderr]     Checking sha2 v0.8.2
[INFO] [stderr]     Checking md-5 v0.8.0
[INFO] [stderr]     Checking sha-1 v0.8.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking async-executor v1.4.1
[INFO] [stderr]     Checking blocking v1.0.2
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling err-derive v0.2.4
[INFO] [stderr]     Checking semver-parser v0.10.2
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]     Checking semver v0.11.0
[INFO] [stderr]    Compiling string_cache_codegen v0.4.4
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling string_cache v0.7.5
[INFO] [stderr]     Checking backtrace v0.3.61
[INFO] [stderr]     Checking webpki v0.21.4
[INFO] [stderr]     Checking sct v0.6.1
[INFO] [stderr]     Checking webpki-roots v0.20.0
[INFO] [stderr]     Checking webpki-roots v0.18.0
[INFO] [stderr]    Compiling darling_core v0.13.0
[INFO] [stderr]    Compiling synstructure v0.12.5
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling ctor v0.1.20
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]    Compiling futures-macro v0.3.16
[INFO] [stderr]    Compiling pin-project-internal v1.0.8
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling async-trait v0.1.51
[INFO] [stderr]    Compiling enum-as-inner v0.3.3
[INFO] [stderr]    Compiling async-attributes v1.1.2
[INFO] [stderr]    Compiling typed-builder v0.4.1
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling typed-builder v0.7.1
[INFO] [stderr]    Compiling darling_macro v0.13.0
[INFO] [stderr] error: could not compile `syn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-0.15.44/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --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="fold"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' -C metadata=fd5af2787304d7b0 -C extra-filename=-fd5af2787304d7b0 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-1b603436233589f0.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-ffc17673ba1adfd6.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-f4af8e7ee48fb608.rmeta --cap-lints allow --cfg syn_can_match_trailing_dollar --cfg syn_can_use_thread_id --cfg syn_can_use_associated_constants --cfg syn_can_call_macro_by_path --cfg syn_disable_nightly_tests` (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" "10e4459f1537555d9ae64eb124910276b7af2007a1241a04e42d230d756f30e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10e4459f1537555d9ae64eb124910276b7af2007a1241a04e42d230d756f30e9", kill_on_drop: false }`
[INFO] [stdout] 10e4459f1537555d9ae64eb124910276b7af2007a1241a04e42d230d756f30e9
