[INFO] cloning repository https://github.com/keithnoguchi/rustbox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/keithnoguchi/rustbox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkeithnoguchi%2Frustbox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkeithnoguchi%2Frustbox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0f5a0c71616cfbd55d4ee0f500526e122c980adf
[INFO] documenting keithnoguchi/rustbox against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkeithnoguchi%2Frustbox" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/keithnoguchi/rustbox 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 git repo https://github.com/keithnoguchi/rustbox
[INFO] finished tweaking git repo https://github.com/keithnoguchi/rustbox
[INFO] tweaked toml for git repo https://github.com/keithnoguchi/rustbox written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/keithnoguchi/rustbox 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]  Downloading crates ...
[INFO] [stderr]   Downloaded mut_static v5.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] [stdout] 1df8e8466a14149fc6914673fa3bc4295a50bf06f1b27e359059e76bb941a5d7
[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" "1df8e8466a14149fc6914673fa3bc4295a50bf06f1b27e359059e76bb941a5d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1df8e8466a14149fc6914673fa3bc4295a50bf06f1b27e359059e76bb941a5d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1df8e8466a14149fc6914673fa3bc4295a50bf06f1b27e359059e76bb941a5d7", kill_on_drop: false }`
[INFO] [stdout] 1df8e8466a14149fc6914673fa3bc4295a50bf06f1b27e359059e76bb941a5d7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 3e3a721f1371bb2fbdac32db31f5008144da0aaee0962b0a25642c9deea239e5
[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" "3e3a721f1371bb2fbdac32db31f5008144da0aaee0962b0a25642c9deea239e5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]     Checking futures-core v0.3.7
[INFO] [stderr]     Checking futures-io v0.3.7
[INFO] [stderr]     Checking futures-sink v0.3.7
[INFO] [stderr]     Checking tower-layer v0.3.0
[INFO] [stderr]    Compiling anyhow v1.0.33
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]     Checking error-chain v0.10.0
[INFO] [stderr]    Compiling flatbuf-tutorial v0.1.0 (/opt/rustwide/workdir/flatbuf)
[INFO] [stderr]  Documenting algorithm-book v0.1.0 (/opt/rustwide/workdir/algorithm)
[INFO] [stderr]  Documenting list-book v0.1.0 (/opt/rustwide/workdir/list)
[INFO] [stderr]  Documenting async-task-book v0.1.0 (/opt/rustwide/workdir/async-task)
[INFO] [stderr]  Documenting style-book v0.1.0 (/opt/rustwide/workdir/style)
[INFO] [stderr]  Documenting embedded-book v0.1.0 (/opt/rustwide/workdir/embedded)
[INFO] [stderr]  Documenting actix-web-book v0.1.0 (/opt/rustwide/workdir/actix-web)
[INFO] [stderr]     Checking futures-task v0.3.7
[INFO] [stderr]     Checking tracing-core v0.1.10
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]     Checking c2-chacha v0.2.3
[INFO] [stderr]     Checking instant v0.1.8
[INFO] [stderr]     Checking flatbuffers v0.6.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]     Checking mut_static v5.0.0
[INFO] [stderr]     Checking async-channel v1.5.1
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]     Checking futures-channel v0.3.7
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stdout] warning: unresolved link to `Task`
[INFO] [stdout]  --> async-task/src/task.rs:1:6
[INFO] [stdout]   |
[INFO] [stdout] 1 | //! [Task] and [spawn] examples
[INFO] [stdout]   |      ^^^^ no item named `Task` in scope
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(rustdoc::broken_intra_doc_links)]` on by default
[INFO] [stdout]   = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `spawn`
[INFO] [stdout]  --> async-task/src/task.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | //! [Task] and [spawn] examples
[INFO] [stdout]   |                 ^^^^^ no item named `spawn` in scope
[INFO] [stdout]   |
[INFO] [stdout]   = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking futures-lite v1.11.2
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: failed to run custom build command for `flatbuf-tutorial v0.1.0 (/opt/rustwide/workdir/flatbuf)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/flatbuf-tutorial-03e6f9ebe6b74840/build-script-build` (exit status: 1)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   Error: Os { code: 2, kind: NotFound, message: "No such file or directory" }
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "3e3a721f1371bb2fbdac32db31f5008144da0aaee0962b0a25642c9deea239e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e3a721f1371bb2fbdac32db31f5008144da0aaee0962b0a25642c9deea239e5", kill_on_drop: false }`
[INFO] [stdout] 3e3a721f1371bb2fbdac32db31f5008144da0aaee0962b0a25642c9deea239e5
