[INFO] cloning repository https://github.com/tzskp1/kintai
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tzskp1/kintai" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftzskp1%2Fkintai", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftzskp1%2Fkintai'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1a23c77360d9cc802dd57073de96a6bf2f869c2f
[INFO] documenting tzskp1/kintai against 1.54.0 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftzskp1%2Fkintai" "/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/tzskp1/kintai 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 git repo https://github.com/tzskp1/kintai
[INFO] finished tweaking git repo https://github.com/tzskp1/kintai
[INFO] tweaked toml for git repo https://github.com/tzskp1/kintai written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/tzskp1/kintai already has a lockfile, it will not be regenerated
[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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded actix-web v3.3.2
[INFO] [stderr]   Downloaded pin-project-internal v0.4.28
[INFO] [stderr]   Downloaded actix-macros v0.1.3
[INFO] [stderr]   Downloaded const_fn v0.4.8
[INFO] [stderr]   Downloaded v_htmlescape v0.12.0
[INFO] [stderr]   Downloaded standback v0.2.17
[INFO] [stderr]   Downloaded buf-min v0.4.0
[INFO] [stderr]   Downloaded actix-files v0.5.0
[INFO] [stderr]   Downloaded random-number v0.1.6
[INFO] [stderr]   Downloaded actix-http v2.2.0
[INFO] [stderr]   Downloaded cookie v0.14.4
[INFO] [stderr]   Downloaded async-trait v0.1.50
[INFO] [stderr]   Downloaded pin-project v0.4.28
[INFO] [stderr]   Downloaded time v0.2.27
[INFO] [stderr]   Downloaded resolv-conf v0.7.0
[INFO] [stderr]   Downloaded actix-router v0.2.7
[INFO] [stderr]   Downloaded blowfish v0.8.0
[INFO] [stderr]   Downloaded v_escape v0.15.0
[INFO] [stderr]   Downloaded cipher v0.3.0
[INFO] [stderr]   Downloaded time-macros-impl v0.1.2
[INFO] [stderr]   Downloaded trust-dns-proto v0.19.7
[INFO] [stderr]   Downloaded passwords v3.1.7
[INFO] [stderr]   Downloaded bcrypt v0.10.0
[INFO] [stderr]   Downloaded random-number-macro-impl v0.1.5
[INFO] [stderr]   Downloaded random-pick v1.2.14
[INFO] [stderr]   Downloaded actix-macros v0.2.1
[INFO] [stderr]   Downloaded actix-rt v2.2.0
[INFO] [stderr]   Downloaded bytestring v1.0.0
[INFO] [stderr]   Downloaded trust-dns-resolver v0.19.7
[INFO] [stderr]   Downloaded awc v2.0.3
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b06e0834b27a80b44e23c3162924e4db154c638f812f433230e53772b6f4f1f5
[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" "b06e0834b27a80b44e23c3162924e4db154c638f812f433230e53772b6f4f1f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b06e0834b27a80b44e23c3162924e4db154c638f812f433230e53772b6f4f1f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b06e0834b27a80b44e23c3162924e4db154c638f812f433230e53772b6f4f1f5", kill_on_drop: false }`
[INFO] [stdout] b06e0834b27a80b44e23c3162924e4db154c638f812f433230e53772b6f4f1f5
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/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] 35eb90dd51d4a3ef42c026b72d3a08fa2c881baf7ddfcd857d7dfc77dd8f157f
[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" "35eb90dd51d4a3ef42c026b72d3a08fa2c881baf7ddfcd857d7dfc77dd8f157f", kill_on_drop: false }`
[INFO] [stderr]    Compiling tokio v1.8.1
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking hostname v0.3.1
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking socket2 v0.3.19
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]     Checking brotli-sys v0.3.2
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]     Checking flate2 v1.0.20
[INFO] [stderr]    Compiling derive_more v0.99.16
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling time-macros-impl v0.1.2
[INFO] [stderr]    Compiling enum-as-inner v0.3.3
[INFO] [stderr]    Compiling random-number-macro-impl v0.1.5
[INFO] [stderr]    Compiling actix-macros v0.2.1
[INFO] [stderr]     Checking pem v0.8.3
[INFO] [stderr]     Checking resolv-conf v0.7.0
[INFO] [stderr]     Checking futures-util v0.3.15
[INFO] [stderr]     Checking brotli2 v0.3.2
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking blowfish v0.8.0
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking actix-router v0.2.7
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking tracing-futures v0.2.5
[INFO] [stderr]     Checking bcrypt v0.10.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking scheduled-thread-pool v0.2.5
[INFO] [stderr]    Compiling v_escape_derive v0.8.4
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking r2d2 v0.8.9
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr] error: could not compile `futures-util`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name futures_util --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-util-0.3.15/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="alloc"' --cfg 'feature="async-await"' --cfg 'feature="async-await-macro"' --cfg 'feature="channel"' --cfg 'feature="default"' --cfg 'feature="futures-channel"' --cfg 'feature="futures-io"' --cfg 'feature="futures-macro"' --cfg 'feature="futures-sink"' --cfg 'feature="io"' --cfg 'feature="memchr"' --cfg 'feature="proc-macro-hack"' --cfg 'feature="proc-macro-nested"' --cfg 'feature="sink"' --cfg 'feature="slab"' --cfg 'feature="std"' -C metadata=0a3be8544103230b -C extra-filename=-0a3be8544103230b --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern futures_channel=/opt/rustwide/target/debug/deps/libfutures_channel-c6bf3f87ff1f6f1c.rmeta --extern futures_core=/opt/rustwide/target/debug/deps/libfutures_core-c07eb06424fa6a2c.rmeta --extern futures_io=/opt/rustwide/target/debug/deps/libfutures_io-432fc5ecc1780b80.rmeta --extern futures_macro=/opt/rustwide/target/debug/deps/libfutures_macro-6f86c3066dded7d6.so --extern futures_sink=/opt/rustwide/target/debug/deps/libfutures_sink-69d024a5c9eb4b60.rmeta --extern futures_task=/opt/rustwide/target/debug/deps/libfutures_task-4a8f23a235ada163.rmeta --extern memchr=/opt/rustwide/target/debug/deps/libmemchr-df16d2ab8eb23f89.rmeta --extern pin_project_lite=/opt/rustwide/target/debug/deps/libpin_project_lite-9283102e9cf41fdf.rmeta --extern pin_utils=/opt/rustwide/target/debug/deps/libpin_utils-919eec9578452e19.rmeta --extern proc_macro_hack=/opt/rustwide/target/debug/deps/libproc_macro_hack-3db5b274372faa08.so --extern proc_macro_nested=/opt/rustwide/target/debug/deps/libproc_macro_nested-265164cebdf00d82.rmeta --extern slab=/opt/rustwide/target/debug/deps/libslab-373cdb0b273c2053.rmeta --cap-lints allow --cfg fn_like_proc_macro` (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" "35eb90dd51d4a3ef42c026b72d3a08fa2c881baf7ddfcd857d7dfc77dd8f157f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35eb90dd51d4a3ef42c026b72d3a08fa2c881baf7ddfcd857d7dfc77dd8f157f", kill_on_drop: false }`
[INFO] [stdout] 35eb90dd51d4a3ef42c026b72d3a08fa2c881baf7ddfcd857d7dfc77dd8f157f