[INFO] fetching crate parse_torrent 0.5.2...
[INFO] documenting parse_torrent-0.5.2 against 1.47.0 for beta-1.48-rustdoc-1
[INFO] extracting crate parse_torrent 0.5.2 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate parse_torrent 0.5.2 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 crates.io crate parse_torrent 0.5.2
[INFO] finished tweaking crates.io crate parse_torrent 0.5.2
[INFO] tweaked toml for crates.io crate parse_torrent 0.5.2 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 138d5baa6dbb82cc45d6db3dd071306ded4721397eb29a3f8f19a00244f2c846
[INFO] running `Command { std: "docker" "start" "-a" "138d5baa6dbb82cc45d6db3dd071306ded4721397eb29a3f8f19a00244f2c846", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "138d5baa6dbb82cc45d6db3dd071306ded4721397eb29a3f8f19a00244f2c846", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "138d5baa6dbb82cc45d6db3dd071306ded4721397eb29a3f8f19a00244f2c846", kill_on_drop: false }`
[INFO] [stdout] 138d5baa6dbb82cc45d6db3dd071306ded4721397eb29a3f8f19a00244f2c846
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] [stdout] 4a030c665aabd717075b4ea1c78375a40ba2a404ebeb616db289ec9cfc2c7423
[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" "4a030c665aabd717075b4ea1c78375a40ba2a404ebeb616db289ec9cfc2c7423", kill_on_drop: false }`
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]     Checking serde v0.8.23
[INFO] [stderr]     Checking sha1 v0.2.0
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]     Checking num-integer v0.1.43
[INFO] [stderr]     Checking bencode v0.1.16
[INFO] [stderr]    Compiling syn v0.10.8
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking chrono v0.3.0
[INFO] [stderr]    Compiling serde_codegen_internals v0.11.3
[INFO] [stderr]    Compiling serde_codegen v0.8.23
[INFO] [stderr]     Checking bincode v0.6.1
[INFO] [stderr]    Compiling serde_derive v0.8.23
[INFO] [stderr]     Checking serde_bencode v0.1.3
[INFO] [stderr]     Checking serde_bytes v0.10.5
[INFO] [stderr]  Documenting parse_torrent v0.5.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(proc_macro)] // Rust nightly
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 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 `parse_torrent`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name parse_torrent src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern bencode=/opt/rustwide/target/debug/deps/libbencode-0c0b410d5874f098.rmeta --extern bincode=/opt/rustwide/target/debug/deps/libbincode-ec2348540f200519.rmeta --extern chrono=/opt/rustwide/target/debug/deps/libchrono-ce6dcea11257348a.rmeta --extern crypto=/opt/rustwide/target/debug/deps/libcrypto-cd8a4b3a921d3ef5.rmeta --extern rustc_serialize=/opt/rustwide/target/debug/deps/librustc_serialize-ccd29a9709a6fd5e.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-db593e47dad69f85.rmeta --extern serde_bencode=/opt/rustwide/target/debug/deps/libserde_bencode-291bd8904238c4d1.rmeta --extern serde_bytes=/opt/rustwide/target/debug/deps/libserde_bytes-9679ef090a725ee7.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-04b213415546b5cc.so --extern sha1=/opt/rustwide/target/debug/deps/libsha1-eac6ea43ec29347c.rmeta --cap-lints=warn --crate-version 0.5.2` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "4a030c665aabd717075b4ea1c78375a40ba2a404ebeb616db289ec9cfc2c7423", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a030c665aabd717075b4ea1c78375a40ba2a404ebeb616db289ec9cfc2c7423", kill_on_drop: false }`
[INFO] [stdout] 4a030c665aabd717075b4ea1c78375a40ba2a404ebeb616db289ec9cfc2c7423
