[INFO] cloning repository https://github.com/EloD10/warpforum
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/EloD10/warpforum" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEloD10%2Fwarpforum", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEloD10%2Fwarpforum'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5483e4ac739e2c9a53843ead00d66faa22fdb5c8
[INFO] documenting EloD10/warpforum against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEloD10%2Fwarpforum" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/EloD10/warpforum on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/EloD10/warpforum
[INFO] finished tweaking git repo https://github.com/EloD10/warpforum
[INFO] tweaked toml for git repo https://github.com/EloD10/warpforum written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/EloD10/warpforum already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 433deb27bbc70d96b93d2d3c489a2580aaa2886e0bea935e03af61719a2ed219
[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" "433deb27bbc70d96b93d2d3c489a2580aaa2886e0bea935e03af61719a2ed219", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "433deb27bbc70d96b93d2d3c489a2580aaa2886e0bea935e03af61719a2ed219", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "433deb27bbc70d96b93d2d3c489a2580aaa2886e0bea935e03af61719a2ed219", kill_on_drop: false }`
[INFO] [stdout] 433deb27bbc70d96b93d2d3c489a2580aaa2886e0bea935e03af61719a2ed219
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b53e8266b36c740835db9ac17dc9bd688d82a130a6cfb14d97e52d4d1a1a8cfb
[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" "b53e8266b36c740835db9ac17dc9bd688d82a130a6cfb14d97e52d4d1a1a8cfb", kill_on_drop: false }`
[INFO] [stderr]     Checking lazy_static v1.0.2
[INFO] [stderr]    Compiling serde v1.0.70
[INFO] [stderr]     Checking itoa v0.4.2
[INFO] [stderr]     Checking matches v0.1.7
[INFO] [stderr]    Compiling num-traits v0.2.5
[INFO] [stderr]    Compiling regex v1.0.2
[INFO] [stderr]    Compiling httparse v1.3.2
[INFO] [stderr]     Checking arrayref v0.3.4
[INFO] [stderr]     Checking rand_core v0.2.1
[INFO] [stderr]     Checking string v0.1.1
[INFO] [stderr]     Checking indexmap v1.0.1
[INFO] [stderr]     Checking termcolor v1.0.1
[INFO] [stderr]     Checking utf-8 v0.7.2
[INFO] [stderr]     Checking opaque-debug v0.1.1
[INFO] [stderr]     Checking error-chain v0.11.0
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking tokio-executor v0.1.2
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking crossbeam-utils v0.3.2
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.23
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking time v0.1.40
[INFO] [stderr]    Compiling proc-macro2 v0.4.9
[INFO] [stderr]    Compiling ring v0.13.2
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking regex-syntax v0.6.2
[INFO] [stderr]     Checking humantime v1.1.1
[INFO] [stderr]     Checking base64 v0.9.2
[INFO] [stderr]     Checking want v0.0.6
[INFO] [stderr]     Checking block-buffer v0.3.3
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking bytes v0.4.9
[INFO] [stderr]    Compiling quote v0.5.2
[INFO] [stderr]     Checking tokio-timer v0.2.4
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking rand v0.5.4
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]     Checking crossbeam-epoch v0.4.3
[INFO] [stderr]     Checking aho-corasick v0.6.6
[INFO] [stderr]     Checking mio v0.6.15
[INFO] [stderr]     Checking generic-array v0.9.0
[INFO] [stderr]    Compiling syn v0.13.11
[INFO] [stderr]    Compiling quote v0.6.4
[INFO] [stderr]    Compiling failure_derive v0.1.1
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]    Compiling syn v0.14.5
[INFO] [stderr]     Checking digest v0.7.5
[INFO] [stderr]     Checking block-cipher-trait v0.5.3
[INFO] [stderr]     Checking crossbeam-deque v0.3.1
[INFO] [stderr]     Checking tokio-io v0.1.7
[INFO] [stderr]     Checking http v0.1.8
[INFO] [stderr]     Checking input_buffer v0.2.0
[INFO] [stderr]     Checking sha-1 v0.7.0
[INFO] [stderr]     Checking blowfish v0.3.0
[INFO] [stderr]     Checking tokio-threadpool v0.1.5
[INFO] [stderr]     Checking bcrypt v0.2.0
[INFO] [stderr]     Checking tokio-codec v0.1.0
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]     Checking tokio-reactor v0.1.2
[INFO] [stderr]     Checking num-integer v0.1.39
[INFO] [stderr]     Checking url v1.7.1
[INFO] [stderr]     Checking failure v0.1.1
[INFO] [stderr]     Checking tokio-tcp v0.1.0
[INFO] [stderr]     Checking tokio-udp v0.1.1
[INFO] [stderr]     Checking tokio-fs v0.1.2
[INFO] [stderr]     Checking tokio v0.1.7
[INFO] [stderr]     Checking tungstenite v0.6.0
[INFO] [stderr]     Checking h2 v0.1.10
[INFO] [stderr]    Compiling serde_derive v1.0.70
[INFO] [stderr]     Checking env_logger v0.5.11
[INFO] [stderr]     Checking dotenv v0.13.0
[INFO] [stderr]     Checking serde_json v1.0.24
[INFO] [stderr]     Checking chrono v0.4.5
[INFO] [stderr]     Checking serde_urlencoded v0.5.2
[INFO] [stderr]     Checking hyper v0.12.7
[INFO] [stderr]     Checking pretty_env_logger v0.2.4
[INFO] [stderr]    Compiling diesel_derives v1.3.0
[INFO] [stderr]     Checking warp v0.1.1
[INFO] [stderr]     Checking diesel v1.3.2
[INFO] [stderr]     Checking jsonwebtoken v4.0.1 (https://github.com/Keats/jsonwebtoken.git?rev=126ee4b1a339a915e9e353dc5278a20de432ad00#126ee4b1)
[INFO] [stderr]  Documenting forum 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(use_extern_macros)]
[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 `forum`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name forum 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 bcrypt=/opt/rustwide/target/debug/deps/libbcrypt-7ecf937568f1e7b1.rmeta --extern chrono=/opt/rustwide/target/debug/deps/libchrono-bb2a6bfad92075f4.rmeta --extern diesel=/opt/rustwide/target/debug/deps/libdiesel-ff7dc18eac493a10.rmeta --extern dotenv=/opt/rustwide/target/debug/deps/libdotenv-cd51482e2400a246.rmeta --extern jsonwebtoken=/opt/rustwide/target/debug/deps/libjsonwebtoken-edbef611b5f93442.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-77fbf2c8125b70b6.rmeta --extern pretty_env_logger=/opt/rustwide/target/debug/deps/libpretty_env_logger-ecbb893abe8d44e2.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-477163df84742557.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-fd0455bae8900ea7.so --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-dcdd00c9ab74fa13.rmeta --extern warp=/opt/rustwide/target/debug/deps/libwarp-dafe8da2ca532f41.rmeta --cap-lints=warn` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "b53e8266b36c740835db9ac17dc9bd688d82a130a6cfb14d97e52d4d1a1a8cfb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b53e8266b36c740835db9ac17dc9bd688d82a130a6cfb14d97e52d4d1a1a8cfb", kill_on_drop: false }`
[INFO] [stdout] b53e8266b36c740835db9ac17dc9bd688d82a130a6cfb14d97e52d4d1a1a8cfb