[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 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmierz00%2Ftorrenter" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mierz00/torrenter on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "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-10/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" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cloudabi v0.1.0
[INFO] [stderr]   Downloaded instant v0.1.8
[INFO] [stderr]   Downloaded unicode-normalization v0.1.13
[INFO] [stderr]   Downloaded miow v0.3.5
[INFO] [stderr]   Downloaded mio v0.7.4
[INFO] [stderr]   Downloaded socket2 v0.3.15
[INFO] [stderr]   Downloaded serde v1.0.116
[INFO] [stderr]   Downloaded bytes v0.6.0
[INFO] [stderr]   Downloaded futures-core v0.3.7
[INFO] [stderr]   Downloaded byteorder v0.3.13
[INFO] [stderr]   Downloaded serde_derive v1.0.116
[INFO] [stderr]   Downloaded proc-macro2 v1.0.21
[INFO] [stderr]   Downloaded tokio v0.3.2
[INFO] [stderr]   Downloaded signal-hook-registry v1.2.1
[INFO] [stderr]   Downloaded tokio-macros v0.3.1
[INFO] [stderr]   Downloaded tinyvec v0.3.4
[INFO] [stderr]   Downloaded serde_bencode v0.2.2
[INFO] [stderr]   Downloaded smallvec v1.4.2
[INFO] [stderr]   Downloaded anyhow v1.0.32
[INFO] [stderr]   Downloaded syn v1.0.41
[INFO] [stderr]   Downloaded lock_api v0.4.1
[INFO] [stderr]   Downloaded parking_lot v0.11.0
[INFO] [stderr]   Downloaded bytebuffer v0.2.1
[INFO] [stderr]   Downloaded libc v0.2.77
[INFO] [stderr]   Downloaded arc-swap v0.4.7
[INFO] [stderr]   Downloaded parking_lot_core v0.8.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9337a5389e529e8ca76da8f7ccb1ee5c99b129ac7618b30627a6f3798e342fa3
[INFO] running `Command { std: "docker" "start" "-a" "9337a5389e529e8ca76da8f7ccb1ee5c99b129ac7618b30627a6f3798e342fa3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9337a5389e529e8ca76da8f7ccb1ee5c99b129ac7618b30627a6f3798e342fa3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9337a5389e529e8ca76da8f7ccb1ee5c99b129ac7618b30627a6f3798e342fa3", kill_on_drop: false }`
[INFO] [stdout] 9337a5389e529e8ca76da8f7ccb1ee5c99b129ac7618b30627a6f3798e342fa3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a5b6226f7d8311294278b6fd4da394862ae5496847bd92b8e42f148b60804bfc
[INFO] running `Command { std: "docker" "start" "-a" "a5b6226f7d8311294278b6fd4da394862ae5496847bd92b8e42f148b60804bfc", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling proc-macro2 v1.0.21
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking tinyvec v0.3.4
[INFO] [stderr]     Checking smallvec v1.4.2
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]     Checking arc-swap v0.4.7
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling anyhow v1.0.32
[INFO] [stderr]     Checking ppv-lite86 v0.2.9
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking futures-core v0.3.7
[INFO] [stderr]     Checking bytes v0.6.0
[INFO] [stderr]     Checking byteorder v0.3.13
[INFO] [stderr]     Checking pin-project-lite v0.1.11
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking instant v0.1.8
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking lock_api v0.4.1
[INFO] [stderr]     Checking bytebuffer v0.2.1
[INFO] [stderr]     Checking unicode-normalization v0.1.13
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking mio v0.7.4
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking signal-hook-registry v1.2.1
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking parking_lot v0.11.0
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking serde_bytes v0.11.5
[INFO] [stderr]     Checking serde_bencode v0.2.2
[INFO] [stderr]    Compiling tokio-macros v0.3.1
[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:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(const_int_pow)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[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,artifacts,future-incompat --document-private-items -C metadata=27c019091287f93e -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-cac8b837a4a146f1.rmeta --extern bytebuffer=/opt/rustwide/target/debug/deps/libbytebuffer-7dacb745704d964b.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-903a019183f9bd5f.rmeta --extern crypto=/opt/rustwide/target/debug/deps/libcrypto-2018fb4bae510266.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-86ec4a90e465530c.rmeta --extern serde_bencode=/opt/rustwide/target/debug/deps/libserde_bencode-0c782951d70e49d9.rmeta --extern serde_bytes=/opt/rustwide/target/debug/deps/libserde_bytes-11ff49560b7ddfa9.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-24151fa141379680.so --extern tokio=/opt/rustwide/target/debug/deps/libtokio-63d082b7e0c03f65.rmeta --extern url=/opt/rustwide/target/debug/deps/liburl-bceea8254cba7aed.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "a5b6226f7d8311294278b6fd4da394862ae5496847bd92b8e42f148b60804bfc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5b6226f7d8311294278b6fd4da394862ae5496847bd92b8e42f148b60804bfc", kill_on_drop: false }`
[INFO] [stdout] a5b6226f7d8311294278b6fd4da394862ae5496847bd92b8e42f148b60804bfc