[INFO] cloning repository https://github.com/terakilobyte/zero2prod
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/terakilobyte/zero2prod" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fterakilobyte%2Fzero2prod", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fterakilobyte%2Fzero2prod'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 19587400b562e224ee21926a4af3957988bb37ca
[INFO] documenting terakilobyte/zero2prod against 1.55.0 for beta-1.56-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fterakilobyte%2Fzero2prod" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/terakilobyte/zero2prod on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/terakilobyte/zero2prod
[INFO] finished tweaking git repo https://github.com/terakilobyte/zero2prod
[INFO] tweaked toml for git repo https://github.com/terakilobyte/zero2prod written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/terakilobyte/zero2prod already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8925981b45640cc1fa0e0af09a80dad853fe787ccf485e64454e62428305decb
[INFO] running `Command { std: "docker" "start" "-a" "8925981b45640cc1fa0e0af09a80dad853fe787ccf485e64454e62428305decb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8925981b45640cc1fa0e0af09a80dad853fe787ccf485e64454e62428305decb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8925981b45640cc1fa0e0af09a80dad853fe787ccf485e64454e62428305decb", kill_on_drop: false }`
[INFO] [stdout] 8925981b45640cc1fa0e0af09a80dad853fe787ccf485e64454e62428305decb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c24f8237c4135a7e8de232bdb1a3c06ad7ffadda09c3a4b7e1be615c004b6b08
[INFO] running `Command { std: "docker" "start" "-a" "c24f8237c4135a7e8de232bdb1a3c06ad7ffadda09c3a4b7e1be615c004b6b08", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling syn v1.0.54
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]     Checking futures-io v0.3.12
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]    Compiling serde_json v1.0.60
[INFO] [stderr]    Compiling const_fn v0.4.4
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]     Checking byteorder v1.4.2
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling rustversion v1.0.4
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]     Checking match_cfg v0.1.0
[INFO] [stderr]     Checking cpuid-bool v0.1.2
[INFO] [stderr]     Checking data-encoding v2.3.2
[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]     Checking hex v0.4.2
[INFO] [stderr]     Checking take_mut v0.2.2
[INFO] [stderr]     Checking version_check v0.9.2
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking humantime v2.0.1
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking lock_api v0.4.2
[INFO] [stderr]    Compiling tokio v1.2.0
[INFO] [stderr]     Checking futures-channel v0.3.8
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]     Checking http v0.2.3
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling standback v0.2.13
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling time v0.2.23
[INFO] [stderr]    Compiling brotli-sys v0.3.2
[INFO] [stderr]     Checking actix-service v2.0.0-beta.4
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling ahash v0.7.0
[INFO] [stderr]    Compiling cookie v0.14.3
[INFO] [stderr]     Checking bytestring v1.0.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking lru-cache v0.1.2
[INFO] [stderr]     Checking tracing v0.1.22
[INFO] [stderr]     Checking futures-task v0.3.8
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking os_info v3.0.1
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]     Checking stringprep v0.1.2
[INFO] [stderr]     Checking parking_lot_core v0.8.1
[INFO] [stderr]     Checking mio v0.7.8
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking signal-hook-registry v1.2.2
[INFO] [stderr]     Checking openssl-sys v0.9.60
[INFO] [stderr]     Checking socket2 v0.3.17
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking hostname v0.3.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling err-derive v0.2.4
[INFO] [stderr]     Checking flate2 v1.0.19
[INFO] [stderr]     Checking resolv-conf v0.7.0
[INFO] [stderr]     Checking env_logger v0.8.2
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking openssl v0.10.32
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking http-body v0.4.0
[INFO] [stderr]     Checking rand_pcg v0.2.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[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]     Checking sha-1 v0.9.2
[INFO] [stderr]     Checking pbkdf2 v0.3.0
[INFO] [stderr]     Checking sha-1 v0.8.2
[INFO] [stderr]     Checking md-5 v0.8.0
[INFO] [stderr]     Checking sha2 v0.8.2
[INFO] [stderr]     Checking hmac v0.7.1
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking native-tls v0.2.7
[INFO] [stderr]     Checking webpki v0.21.4
[INFO] [stderr]     Checking sct v0.6.0
[INFO] [stderr]     Checking rustls v0.19.0
[INFO] [stderr]     Checking webpki-roots v0.21.0
[INFO] [stderr]     Checking webpki-roots v0.18.0
[INFO] [stderr]    Compiling darling_core v0.12.0
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]     Checking brotli2 v0.3.2
[INFO] [stderr]    Compiling tokio-macros v1.1.0
[INFO] [stderr]    Compiling pin-project-internal v1.0.2
[INFO] [stderr]    Compiling futures-macro v0.3.8
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]    Compiling actix-macros v0.2.0
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling darling_macro v0.12.0
[INFO] [stderr]    Compiling derive_more v0.99.11
[INFO] [stderr]    Compiling async-trait v0.1.42
[INFO] [stderr]    Compiling enum-as-inner v0.3.3
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling actix-web-codegen v0.5.0-beta.1
[INFO] [stderr]    Compiling typed-builder v0.4.1
[INFO] [stderr]    Compiling darling v0.12.0
[INFO] [stderr]    Compiling serde_with_macros v1.4.1
[INFO] [stderr] error: could not compile `serde_derive`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name serde_derive /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_derive-1.0.118/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type proc-macro --emit=dep-info,link -C prefer-dynamic -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' -C metadata=e607d811dd48fc65 -C extra-filename=-e607d811dd48fc65 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-17858077ac902bf7.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-06e00a111be99d27.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-2180ffb3225cc6a0.rlib --extern proc_macro --cap-lints allow --cfg underscore_consts` (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" "c24f8237c4135a7e8de232bdb1a3c06ad7ffadda09c3a4b7e1be615c004b6b08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c24f8237c4135a7e8de232bdb1a3c06ad7ffadda09c3a4b7e1be615c004b6b08", kill_on_drop: false }`
[INFO] [stdout] c24f8237c4135a7e8de232bdb1a3c06ad7ffadda09c3a4b7e1be615c004b6b08