[INFO] cloning repository https://github.com/SeaLoong/drcom4scut
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SeaLoong/drcom4scut" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSeaLoong%2Fdrcom4scut", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSeaLoong%2Fdrcom4scut'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c76ff6cb04bbdf682389cacf820f1bc06e837fd2
[INFO] documenting SeaLoong/drcom4scut against 1.54.0 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSeaLoong%2Fdrcom4scut" "/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/SeaLoong/drcom4scut on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/SeaLoong/drcom4scut
[INFO] finished tweaking git repo https://github.com/SeaLoong/drcom4scut
[INFO] tweaked toml for git repo https://github.com/SeaLoong/drcom4scut written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/SeaLoong/drcom4scut already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pnet_transport v0.28.0
[INFO] [stderr]   Downloaded pnet_macros v0.28.0
[INFO] [stderr]   Downloaded ipnetwork v0.18.0
[INFO] [stderr]   Downloaded pnet_datalink v0.28.0
[INFO] [stderr]   Downloaded config v0.11.0
[INFO] [stderr]   Downloaded pnet v0.28.0
[INFO] [stderr]   Downloaded pnet_packet v0.28.0
[INFO] [stderr]   Downloaded pnet_sys v0.28.0
[INFO] [stderr]   Downloaded libc v0.2.96
[INFO] [stderr]   Downloaded pnet_base v0.28.0
[INFO] [stderr]   Downloaded pnet_macros_support v0.28.0
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1cbf516c66b391d442b8451defc30170db57f2eaa22172191f0a03b7151988f3
[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" "1cbf516c66b391d442b8451defc30170db57f2eaa22172191f0a03b7151988f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1cbf516c66b391d442b8451defc30170db57f2eaa22172191f0a03b7151988f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1cbf516c66b391d442b8451defc30170db57f2eaa22172191f0a03b7151988f3", kill_on_drop: false }`
[INFO] [stdout] 1cbf516c66b391d442b8451defc30170db57f2eaa22172191f0a03b7151988f3
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 023e1c9212514e90ed451939aa8727eaee71d5fa404eb6374c4ef05207d7f11a
[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" "023e1c9212514e90ed451939aa8727eaee71d5fa404eb6374c4ef05207d7f11a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.96
[INFO] [stderr]    Compiling futures-channel v0.3.15
[INFO] [stderr]    Compiling pnet v0.28.0
[INFO] [stderr]     Checking log-mdc v0.1.0
[INFO] [stderr]    Compiling tokio v1.6.1
[INFO] [stderr]     Checking pnet_macros_support v0.28.0
[INFO] [stderr]     Checking futures-util v0.3.15
[INFO] [stderr]     Checking ordered-float v2.5.1
[INFO] [stderr]     Checking num-integer v0.1.44
[INFO] [stderr]    Compiling thiserror-impl v1.0.25
[INFO] [stderr]    Compiling pnet_macros v0.28.0
[INFO] [stderr]    Compiling async-trait v0.1.50
[INFO] [stderr]    Compiling enum-as-inner v0.3.3
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]     Checking serde v1.0.126
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking pnet_sys v0.28.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking hostname v0.3.1
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking thread-id v3.3.0
[INFO] [stderr]     Checking flate2 v1.0.20
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking resolv-conf v0.7.0
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking thiserror v1.0.25
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking pnet_packet v0.28.0
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking ipnetwork v0.18.0
[INFO] [stderr]     Checking serde_yaml v0.8.17
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking serde-value v0.7.0
[INFO] [stderr]     Checking config v0.11.0
[INFO] [stderr]     Checking mio v0.7.11
[INFO] [stderr]     Checking pnet_datalink v0.28.0
[INFO] [stderr]     Checking log4rs v1.0.0
[INFO] [stderr]     Checking trust-dns-proto v0.20.3
[INFO] [stderr]     Checking pnet_transport v0.28.0
[INFO] [stderr]     Checking trust-dns-resolver v0.20.3
[INFO] [stderr]  Documenting drcom4scut v0.2.7 (/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(ip, once_cell)]
[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 `drcom4scut`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name drcom4scut src/main.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --cfg 'feature="enablelog"' --cfg 'feature="log4rs"' --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern bytes=/opt/rustwide/target/debug/deps/libbytes-7b9084f8ae89ce82.rmeta --extern chrono=/opt/rustwide/target/debug/deps/libchrono-138db7be08356a5f.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-dd87c86ec859af57.rmeta --extern config=/opt/rustwide/target/debug/deps/libconfig-d2cd515c9f31c9ab.rmeta --extern crossbeam_channel=/opt/rustwide/target/debug/deps/libcrossbeam_channel-44a6e23a465ffe09.rmeta --extern encoding_rs=/opt/rustwide/target/debug/deps/libencoding_rs-ec374ee14a74c5b8.rmeta --extern hex=/opt/rustwide/target/debug/deps/libhex-4e132399b961d086.rmeta --extern hostname=/opt/rustwide/target/debug/deps/libhostname-eebb8dedcba5a577.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-4a42bb90752cab4b.rmeta --extern log4rs=/opt/rustwide/target/debug/deps/liblog4rs-bb400cd4f8970100.rmeta --extern md5=/opt/rustwide/target/debug/deps/libmd5-72484a264d829555.rmeta --extern pnet=/opt/rustwide/target/debug/deps/libpnet-9a6fade293ee3ec0.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-946d703ed08257a7.rmeta --extern trust_dns_resolver=/opt/rustwide/target/debug/deps/libtrust_dns_resolver-279f33c2d2628537.rmeta --cap-lints=warn --crate-version 0.2.7` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "023e1c9212514e90ed451939aa8727eaee71d5fa404eb6374c4ef05207d7f11a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "023e1c9212514e90ed451939aa8727eaee71d5fa404eb6374c4ef05207d7f11a", kill_on_drop: false }`
[INFO] [stdout] 023e1c9212514e90ed451939aa8727eaee71d5fa404eb6374c4ef05207d7f11a
