[INFO] cloning repository https://github.com/Daniihh/delivery
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Daniihh/delivery" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDaniihh%2Fdelivery", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDaniihh%2Fdelivery'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9046366a23827acfbdb1e602637ebb8d533b31b5
[INFO] documenting Daniihh/delivery against 1.47.0 for beta-1.48-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDaniihh%2Fdelivery" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Daniihh/delivery on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Daniihh/delivery
[INFO] finished tweaking git repo https://github.com/Daniihh/delivery
[INFO] tweaked toml for git repo https://github.com/Daniihh/delivery written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/Daniihh/delivery already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 79f6149124e35f111f942c9d2e6710f3f09e685a6d85b40f9814ae66a1b04ff3
[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" "79f6149124e35f111f942c9d2e6710f3f09e685a6d85b40f9814ae66a1b04ff3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "79f6149124e35f111f942c9d2e6710f3f09e685a6d85b40f9814ae66a1b04ff3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79f6149124e35f111f942c9d2e6710f3f09e685a6d85b40f9814ae66a1b04ff3", kill_on_drop: false }`
[INFO] [stdout] 79f6149124e35f111f942c9d2e6710f3f09e685a6d85b40f9814ae66a1b04ff3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+1.47.0" "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] e9e4eefcfd7e44c9dde5a227e16f42773662b4ae454aa4d9495b3af49df0ed5c
[INFO] running `Command { std: "docker" "start" "-a" "e9e4eefcfd7e44c9dde5a227e16f42773662b4ae454aa4d9495b3af49df0ed5c", kill_on_drop: false }`
[INFO] [stderr]    Compiling bzip2-sys v0.1.9+1.0.8
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]     Checking flate2 v1.0.14
[INFO] [stderr]     Checking semver v0.10.0
[INFO] [stderr]     Checking serde_json v1.0.57
[INFO] [stderr]     Checking bzip2 v0.3.3
[INFO] [stderr]     Checking cargo_metadata v0.11.2
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking zip v0.5.7
[INFO] [stderr]  Documenting delivery v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(bool_to_option)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `delivery`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name cargo_pack src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern cargo_metadata=/opt/rustwide/target/debug/deps/libcargo_metadata-8bb3c3c005141d68.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-8a9d925eaee0c512.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-efe6a6dffb02d232.rmeta --extern tempdir=/opt/rustwide/target/debug/deps/libtempdir-4b8b46873d3747ef.rmeta --extern walkdir=/opt/rustwide/target/debug/deps/libwalkdir-35cbba2d5b8a0a7f.rmeta --extern zip=/opt/rustwide/target/debug/deps/libzip-017b7b2a31114a47.rmeta --cap-lints=warn --crate-version 0.1.0` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "e9e4eefcfd7e44c9dde5a227e16f42773662b4ae454aa4d9495b3af49df0ed5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9e4eefcfd7e44c9dde5a227e16f42773662b4ae454aa4d9495b3af49df0ed5c", kill_on_drop: false }`
[INFO] [stdout] e9e4eefcfd7e44c9dde5a227e16f42773662b4ae454aa4d9495b3af49df0ed5c
