[INFO] cloning repository https://github.com/Programatic/Rackett
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Programatic/Rackett" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FProgramatic%2FRackett", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FProgramatic%2FRackett'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 53ffabad2f9df61025dd6fbae071ce690704b638
[INFO] documenting Programatic/Rackett against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FProgramatic%2FRackett" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Programatic/Rackett on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Programatic/Rackett
[INFO] finished tweaking git repo https://github.com/Programatic/Rackett
[INFO] tweaked toml for git repo https://github.com/Programatic/Rackett written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/Programatic/Rackett already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded schannel v0.1.17
[INFO] [stderr]   Downloaded actix-files v0.2.1
[INFO] [stderr]   Downloaded backtrace v0.3.41
[INFO] [stderr]   Downloaded hyper v0.13.3
[INFO] [stderr]   Downloaded torrent-name-parser v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 22a08cbcc961ea30d352c398300251b5b2926defdc0f20abb144f7e5e1f88f75
[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" "22a08cbcc961ea30d352c398300251b5b2926defdc0f20abb144f7e5e1f88f75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "22a08cbcc961ea30d352c398300251b5b2926defdc0f20abb144f7e5e1f88f75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22a08cbcc961ea30d352c398300251b5b2926defdc0f20abb144f7e5e1f88f75", kill_on_drop: false }`
[INFO] [stdout] 22a08cbcc961ea30d352c398300251b5b2926defdc0f20abb144f7e5e1f88f75
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", 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] e938ff5a0246c903fd1557ce41237b8031db02bb0546af09f7339c1f89a9351c
[INFO] running `Command { std: "docker" "start" "-a" "e938ff5a0246c903fd1557ce41237b8031db02bb0546af09f7339c1f89a9351c", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]    Compiling itoa v0.4.5
[INFO] [stderr]    Compiling backtrace-sys v0.1.34
[INFO] [stderr]     Checking dtoa-short v0.3.2
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking parking_lot_core v0.7.0
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking socket2 v0.3.11
[INFO] [stderr]     Checking hostname v0.3.1
[INFO] [stderr]     Checking aho-corasick v0.7.9
[INFO] [stderr]     Checking arrayvec v0.4.12
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]     Checking flate2 v1.0.13
[INFO] [stderr]     Checking openssl v0.10.28
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking resolv-conf v0.6.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling string_cache_codegen v0.4.4
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking parking_lot v0.10.0
[INFO] [stderr]     Checking regex v1.3.4
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]    Compiling selectors v0.21.0
[INFO] [stderr]     Checking lexical-core v0.6.7
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling string_cache v0.7.5
[INFO] [stderr]     Checking backtrace v0.3.41
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking serde-hjson v0.9.1
[INFO] [stderr]     Checking torrent-name-parser v0.2.0
[INFO] [stderr]     Checking native-tls v0.2.4
[INFO] [stderr]     Checking nom v5.1.1
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling pin-project-internal v0.4.8
[INFO] [stderr]    Compiling derive_more v0.99.3
[INFO] [stderr]    Compiling actix-macros v0.1.1
[INFO] [stderr]    Compiling failure_derive v0.1.7
[INFO] [stderr]    Compiling enum-as-inner v0.3.2
[INFO] [stderr]    Compiling async-trait v0.1.24
[INFO] [stderr]    Compiling cssparser v0.25.9
[INFO] [stderr]    Compiling v_escape_derive v0.5.6
[INFO] [stderr]    Compiling html5ever v0.24.1
[INFO] [stderr]    Compiling cssparser-macros v0.3.6
[INFO] [stderr]    Compiling actix-web-codegen v0.2.1
[INFO] [stderr] error: could not compile `async-trait`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name async_trait --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/async-trait-0.1.24/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type proc-macro --emit=dep-info,link -C prefer-dynamic -Cembed-bitcode=no -C debuginfo=2 -C metadata=621630c023f2bd3a -C extra-filename=-621630c023f2bd3a --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-cca29f691eaa7111.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-ff5758c045625bdf.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-3043dc8dda5413dc.rlib --extern proc_macro --cap-lints allow` (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" "e938ff5a0246c903fd1557ce41237b8031db02bb0546af09f7339c1f89a9351c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e938ff5a0246c903fd1557ce41237b8031db02bb0546af09f7339c1f89a9351c", kill_on_drop: false }`
[INFO] [stdout] e938ff5a0246c903fd1557ce41237b8031db02bb0546af09f7339c1f89a9351c