[INFO] cloning repository https://github.com/balena-io-playground/safe-io
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/balena-io-playground/safe-io" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbalena-io-playground%2Fsafe-io", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbalena-io-playground%2Fsafe-io'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 68c0b1f667e127bca30127b2b3d7ff133085a949
[INFO] documenting balena-io-playground/safe-io against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbalena-io-playground%2Fsafe-io" "/workspace/builds/worker-31/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-31/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/balena-io-playground/safe-io on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/balena-io-playground/safe-io
[INFO] finished tweaking git repo https://github.com/balena-io-playground/safe-io
[INFO] tweaked toml for git repo https://github.com/balena-io-playground/safe-io written to /workspace/builds/worker-31/source/Cargo.toml
[INFO] crate git repo https://github.com/balena-io-playground/safe-io already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 399710fccd32b1e0abdeaac274560e5121a019c86db89329a58300fb4d18dae1
[INFO] running `Command { std: "docker" "start" "-a" "399710fccd32b1e0abdeaac274560e5121a019c86db89329a58300fb4d18dae1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "399710fccd32b1e0abdeaac274560e5121a019c86db89329a58300fb4d18dae1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "399710fccd32b1e0abdeaac274560e5121a019c86db89329a58300fb4d18dae1", kill_on_drop: false }`
[INFO] [stdout] 399710fccd32b1e0abdeaac274560e5121a019c86db89329a58300fb4d18dae1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ed9865fc9dd2d15d5307583eed092b5ccc85edae8637c0196264d30c8dc98f4f
[INFO] running `Command { std: "docker" "start" "-a" "ed9865fc9dd2d15d5307583eed092b5ccc85edae8637c0196264d30c8dc98f4f", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling libc v0.2.125
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling memchr v2.3.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]    Compiling anyhow v1.0.2
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]     Checking path-dedot v2.0.5
[INFO] [stderr]     Checking block-padding v0.1.5
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking path-absolutize v2.0.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking getrandom v0.2.6
[INFO] [stderr]     Checking generic-array v0.12.4
[INFO] [stderr]     Checking regex v1.4.6
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking md-5 v0.8.0
[INFO] [stderr]     Checking tempfile v3.0.5
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]  Documenting fatrw v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.00s
[INFO] running `Command { std: "docker" "inspect" "ed9865fc9dd2d15d5307583eed092b5ccc85edae8637c0196264d30c8dc98f4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed9865fc9dd2d15d5307583eed092b5ccc85edae8637c0196264d30c8dc98f4f", kill_on_drop: false }`
[INFO] [stdout] ed9865fc9dd2d15d5307583eed092b5ccc85edae8637c0196264d30c8dc98f4f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTC_BOOTSTRAP=1" "-e" "DOCS_RS=1" "-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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] e3e1d279e771afe6ffe3100f523ae194b84d948f07d9437617214c4d6cd01c53
[INFO] running `Command { std: "docker" "start" "-a" "e3e1d279e771afe6ffe3100f523ae194b84d948f07d9437617214c4d6cd01c53", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling libc v0.2.125
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling memchr v2.3.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling anyhow v1.0.2
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]     Checking block-padding v0.1.5
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking path-dedot v2.0.5
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking path-absolutize v2.0.2
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking getrandom v0.2.6
[INFO] [stderr]     Checking generic-array v0.12.4
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking regex v1.4.6
[INFO] [stderr]     Checking md-5 v0.8.0
[INFO] [stderr]     Checking tempfile v3.0.5
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]  Documenting fatrw v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.99s
[INFO] running `Command { std: "docker" "inspect" "e3e1d279e771afe6ffe3100f523ae194b84d948f07d9437617214c4d6cd01c53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3e1d279e771afe6ffe3100f523ae194b84d948f07d9437617214c4d6cd01c53", kill_on_drop: false }`
[INFO] [stdout] e3e1d279e771afe6ffe3100f523ae194b84d948f07d9437617214c4d6cd01c53