[INFO] cloning repository https://github.com/mierz00/torrenter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mierz00/torrenter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmierz00%2Ftorrenter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmierz00%2Ftorrenter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b2623e71088403cc2f6508193b02b29f3b11670d
[INFO] documenting mierz00/torrenter 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%2Fmierz00%2Ftorrenter" "/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/mierz00/torrenter 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/mierz00/torrenter
[INFO] finished tweaking git repo https://github.com/mierz00/torrenter
[INFO] tweaked toml for git repo https://github.com/mierz00/torrenter written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/mierz00/torrenter 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] 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] 2b191de5ba53ae0815dac715b35ed1871717c1e710319375fc7fe3f8dd3c07be
[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" "2b191de5ba53ae0815dac715b35ed1871717c1e710319375fc7fe3f8dd3c07be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b191de5ba53ae0815dac715b35ed1871717c1e710319375fc7fe3f8dd3c07be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b191de5ba53ae0815dac715b35ed1871717c1e710319375fc7fe3f8dd3c07be", kill_on_drop: false }`
[INFO] [stdout] 2b191de5ba53ae0815dac715b35ed1871717c1e710319375fc7fe3f8dd3c07be
[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] 93e020ae5051c69bf6070e55f9d7bfa4070656091d90fe70bccf006e356799af
[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" "93e020ae5051c69bf6070e55f9d7bfa4070656091d90fe70bccf006e356799af", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]     Checking bytebuffer v0.2.1
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking signal-hook-registry v1.2.1
[INFO] [stderr]     Checking serde_bytes v0.11.5
[INFO] [stderr]     Checking mio v0.7.4
[INFO] [stderr]     Checking serde_bencode v0.2.2
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking rust-crypto v0.2.36
[INFO] [stderr]    Compiling tokio-macros v0.3.1
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]     Checking tokio v0.3.2
[INFO] [stderr]  Documenting torrenter 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(const_int_pow)]
[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 `torrenter`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name torrenter 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 anyhow=/opt/rustwide/target/debug/deps/libanyhow-1ddb0cb3ede81055.rmeta --extern bytebuffer=/opt/rustwide/target/debug/deps/libbytebuffer-2328cf64e2f67337.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-49c09fb0a6fce6c3.rmeta --extern crypto=/opt/rustwide/target/debug/deps/libcrypto-a6a969370991db40.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-8962b30c53e329b9.rmeta --extern serde_bencode=/opt/rustwide/target/debug/deps/libserde_bencode-13653e769226b154.rmeta --extern serde_bytes=/opt/rustwide/target/debug/deps/libserde_bytes-5f36e577797f707a.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-fbe3829b81ba710c.so --extern tokio=/opt/rustwide/target/debug/deps/libtokio-c823c1093930e84a.rmeta --extern url=/opt/rustwide/target/debug/deps/liburl-dc920a6225b6a531.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "93e020ae5051c69bf6070e55f9d7bfa4070656091d90fe70bccf006e356799af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93e020ae5051c69bf6070e55f9d7bfa4070656091d90fe70bccf006e356799af", kill_on_drop: false }`
[INFO] [stdout] 93e020ae5051c69bf6070e55f9d7bfa4070656091d90fe70bccf006e356799af
