[INFO] fetching crate otter-api-tests 0.7.3...
[INFO] documenting otter-api-tests-0.7.3 against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] extracting crate otter-api-tests 0.7.3 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate otter-api-tests 0.7.3 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate otter-api-tests 0.7.3
[INFO] finished tweaking crates.io crate otter-api-tests 0.7.3
[INFO] tweaked toml for crates.io crate otter-api-tests 0.7.3 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate otter-api-tests 0.7.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2021-08-01" "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] bbb8ff9a46f632a9d4010ee278148568689b6cec98f2143769235cffb796e958
[INFO] running `Command { std: "docker" "start" "-a" "bbb8ff9a46f632a9d4010ee278148568689b6cec98f2143769235cffb796e958", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bbb8ff9a46f632a9d4010ee278148568689b6cec98f2143769235cffb796e958", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbb8ff9a46f632a9d4010ee278148568689b6cec98f2143769235cffb796e958", kill_on_drop: false }`
[INFO] [stdout] bbb8ff9a46f632a9d4010ee278148568689b6cec98f2143769235cffb796e958
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6bdf1b826e71f33fb3b3e8a372cf9be2452697d6a43f0b60d9e265f01f4db45c
[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" "6bdf1b826e71f33fb3b3e8a372cf9be2452697d6a43f0b60d9e265f01f4db45c", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling siphasher v0.3.5
[INFO] [stderr]     Checking jpeg-decoder v0.1.22
[INFO] [stderr]     Checking arrayvec v0.7.1
[INFO] [stderr]     Checking bytemuck v1.7.2
[INFO] [stderr]     Checking humansize v1.1.1
[INFO] [stderr]     Checking if_chain v1.0.1
[INFO] [stderr]     Checking lazy-init v0.5.0
[INFO] [stderr]     Checking xmlparser v0.13.3
[INFO] [stderr]    Compiling backtrace v0.3.60
[INFO] [stderr]    Compiling slotmap-fork-otter v1.0.2
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking bstr v0.2.16
[INFO] [stderr]     Checking term_size v0.3.2
[INFO] [stderr]     Checking inotify-sys v0.1.5
[INFO] [stderr]     Checking filetime v0.2.14
[INFO] [stderr]     Checking terminal_size v0.1.17
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking uds v0.2.6
[INFO] [stderr]     Checking openssl-sys v0.9.65
[INFO] [stderr]     Checking bzip2-sys v0.1.11+1.0.8
[INFO] [stderr]     Checking futures-util v0.3.16
[INFO] [stderr]    Compiling derive-into-owned v0.1.0
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking rmp v0.8.10
[INFO] [stderr]     Checking vecdeque-stableix v1.0.0
[INFO] [stderr]     Checking ordered-float v2.7.0
[INFO] [stderr]     Checking flate2 v1.0.20
[INFO] [stderr]     Checking nix v0.22.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]     Checking inotify v0.7.1
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling darling_core v0.13.0
[INFO] [stderr]    Compiling cssparser v0.27.2
[INFO] [stderr]    Compiling fehler-macros v1.0.0
[INFO] [stderr]    Compiling ghost v0.1.2
[INFO] [stderr]    Compiling cssparser-macros v0.6.0
[INFO] [stderr]    Compiling html5ever v0.25.1
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling inventory-impl v0.1.10
[INFO] [stderr]    Compiling ctor v0.1.20
[INFO] [stderr]    Compiling enum-map-derive v0.6.0
[INFO] [stderr]    Compiling strum_macros v0.21.1
[INFO] [stderr]    Compiling typetag-impl v0.1.7
[INFO] [stderr]    Compiling num-derive v0.3.3
[INFO] [stderr]    Compiling enum_dispatch v0.3.7
[INFO] [stderr]    Compiling delegate v0.6.1
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]     Checking console v0.14.1
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]    Compiling parse-zoneinfo v0.3.0
[INFO] [stderr]     Checking globset v0.4.8
[INFO] [stderr]     Checking bzip2 v0.4.3
[INFO] [stderr]     Checking tokio v1.9.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]     Checking openssl v0.10.35
[INFO] [stderr] error: could not compile `nix`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name nix --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/nix-0.22.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 -C metadata=efb2e0532f6dbb40 -C extra-filename=-efb2e0532f6dbb40 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-7925d1bf53c9b12a.rmeta --extern cfg_if=/opt/rustwide/target/debug/deps/libcfg_if-86cb6b55248c00db.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-9545ac4a144a3a20.rmeta --extern memoffset=/opt/rustwide/target/debug/deps/libmemoffset-01a354721c0b85de.rmeta --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" "6bdf1b826e71f33fb3b3e8a372cf9be2452697d6a43f0b60d9e265f01f4db45c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6bdf1b826e71f33fb3b3e8a372cf9be2452697d6a43f0b60d9e265f01f4db45c", kill_on_drop: false }`
[INFO] [stdout] 6bdf1b826e71f33fb3b3e8a372cf9be2452697d6a43f0b60d9e265f01f4db45c
