[INFO] cloning repository https://github.com/Sushisource/hubtain
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Sushisource/hubtain" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSushisource%2Fhubtain", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSushisource%2Fhubtain'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0c4956a297d89570be39533eb78b3ef622b7756d
[INFO] documenting Sushisource/hubtain against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSushisource%2Fhubtain" "/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/Sushisource/hubtain on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Sushisource/hubtain
[INFO] finished tweaking git repo https://github.com/Sushisource/hubtain
[INFO] tweaked toml for git repo https://github.com/Sushisource/hubtain written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/Sushisource/hubtain already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro-nested v0.1.5
[INFO] [stderr]   Downloaded xmltree v0.10.0
[INFO] [stderr]   Downloaded thiserror-impl v1.0.19
[INFO] [stderr]   Downloaded async-attributes v1.1.1
[INFO] [stderr]   Downloaded c_linked_list v1.1.1
[INFO] [stderr]   Downloaded ringbuf v0.2.1
[INFO] [stderr]   Downloaded get_if_addrs-sys v0.1.1
[INFO] [stderr]   Downloaded poly1305 v0.5.2
[INFO] [stderr]   Downloaded derive_more v0.99.7
[INFO] [stderr]   Downloaded async-std v1.6.0
[INFO] [stderr]   Downloaded send_wrapper v0.4.0
[INFO] [stderr]   Downloaded attohttpc v0.10.1
[INFO] [stderr]   Downloaded console v0.11.3
[INFO] [stderr]   Downloaded curve25519-dalek v2.1.0
[INFO] [stderr]   Downloaded mnemonic v1.0.1
[INFO] [stderr]   Downloaded igd v0.11.1
[INFO] [stderr]   Downloaded blake2 v0.8.1
[INFO] [stderr]   Downloaded chacha20 v0.3.4
[INFO] [stderr]   Downloaded ring v0.16.14
[INFO] [stderr]   Downloaded snow v0.7.0-alpha5
[INFO] [stderr]   Downloaded thiserror v1.0.19
[INFO] [stderr]   Downloaded get_if_addrs v0.5.3
[INFO] [stderr]   Downloaded chacha20poly1305 v0.4.1
[INFO] [stderr]   Downloaded tui v0.9.5
[INFO] [stderr]   Downloaded zeroize_derive v1.0.0
[INFO] [stderr]   Downloaded x25519-dalek v0.6.0
[INFO] [stderr]   Downloaded futures_ringbuf v0.2.1
[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" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3196e484333e2d99edc89519b7aaa66e9590936343587aeb71e687e855283ee1
[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" "3196e484333e2d99edc89519b7aaa66e9590936343587aeb71e687e855283ee1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3196e484333e2d99edc89519b7aaa66e9590936343587aeb71e687e855283ee1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3196e484333e2d99edc89519b7aaa66e9590936343587aeb71e687e855283ee1", kill_on_drop: false }`
[INFO] [stdout] 3196e484333e2d99edc89519b7aaa66e9590936343587aeb71e687e855283ee1
[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" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d336a3ac7f3779244f146a1d62daa8f0c79d77ec3febfba7724d349e61128dc9
[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" "d336a3ac7f3779244f146a1d62daa8f0c79d77ec3febfba7724d349e61128dc9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling proc-macro-nested v0.1.5
[INFO] [stderr]    Compiling ring v0.16.14
[INFO] [stderr]     Checking xmltree v0.10.0
[INFO] [stderr]     Checking mnemonic v1.0.1
[INFO] [stderr]     Checking term_size v0.3.2
[INFO] [stderr]     Checking get_if_addrs v0.5.3
[INFO] [stderr]    Compiling syn v1.0.31
[INFO] [stderr]     Checking universal-hash v0.3.0
[INFO] [stderr]    Compiling snow v0.7.0-alpha5
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]     Checking console v0.11.3
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking polyval v0.3.3
[INFO] [stderr]     Checking poly1305 v0.5.2
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking ghash v0.2.3
[INFO] [stderr]     Checking indicatif v0.14.0
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking attohttpc v0.10.1
[INFO] [stderr]     Checking kv-log-macro v1.0.6
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking igd v0.11.1
[INFO] [stderr]     Checking signal-hook v0.1.15
[INFO] [stderr]     Checking crossterm v0.17.5
[INFO] [stderr]     Checking tui v0.9.5
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling pin-project-internal v0.4.20
[INFO] [stderr]    Compiling zeroize_derive v1.0.0
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling serde_derive v1.0.111
[INFO] [stderr]    Compiling async-attributes v1.1.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.19
[INFO] [stderr]    Compiling async-trait v0.1.35
[INFO] [stderr]    Compiling derive_more v0.99.7
[INFO] [stderr]     Checking zeroize v1.1.0
[INFO] [stderr]     Checking curve25519-dalek v2.1.0
[INFO] [stderr]     Checking chacha20 v0.3.4
[INFO] [stderr]     Checking aes-gcm v0.5.0
[INFO] [stderr]     Checking thiserror v1.0.19
[INFO] [stderr]     Checking chacha20poly1305 v0.4.1
[INFO] [stderr]     Checking x25519-dalek v0.6.0
[INFO] [stderr]     Checking pin-project v0.4.20
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking serde v1.0.111
[INFO] [stderr]     Checking piper v0.1.3
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking smol v0.1.11
[INFO] [stderr]     Checking async-std v1.6.0
[INFO] [stderr]     Checking bincode v1.2.1
[INFO] [stderr]     Checking serde_json v1.0.55
[INFO] [stderr]  Documenting hubtain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test, async_closure, fixed_size_array)]
[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 `hubtain`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name hubtain 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-70b362b0d3f6c020.rmeta --extern async_std=/opt/rustwide/target/debug/deps/libasync_std-9ceae42bf47a9b9a.rmeta --extern async_trait=/opt/rustwide/target/debug/deps/libasync_trait-a75e3f17a7c96d10.so --extern atty=/opt/rustwide/target/debug/deps/libatty-369ebddd32d06ee0.rmeta --extern bincode=/opt/rustwide/target/debug/deps/libbincode-6235683ff3a6c342.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-a727a35c79da3b9e.rmeta --extern colored=/opt/rustwide/target/debug/deps/libcolored-052322d179ff347d.rmeta --extern crossterm=/opt/rustwide/target/debug/deps/libcrossterm-7212e01882001c76.rmeta --extern derive_more=/opt/rustwide/target/debug/deps/libderive_more-b2e629507af9a7ec.so --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-b2ae9598357b1f77.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-07aea0217387050b.rmeta --extern get_if_addrs=/opt/rustwide/target/debug/deps/libget_if_addrs-0f63372683e4c237.rmeta --extern igd=/opt/rustwide/target/debug/deps/libigd-b0fb143ef2178a7a.rmeta --extern indicatif=/opt/rustwide/target/debug/deps/libindicatif-c16428f09d216ac0.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-db88f49d9e5662e7.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-6bdba6c1562fbb28.rmeta --extern mnemonic=/opt/rustwide/target/debug/deps/libmnemonic-92d83961a7d33319.rmeta --extern pin_utils=/opt/rustwide/target/debug/deps/libpin_utils-3d51a938ac21e975.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-c38880f5f03aa648.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-0895e023e12003f4.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-8abd11eabab38478.rmeta --extern snow=/opt/rustwide/target/debug/deps/libsnow-e63edee649bc9798.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-5109d81b47e5737e.rmeta --extern tui=/opt/rustwide/target/debug/deps/libtui-afbab8d1e6c30f39.rmeta --cap-lints=warn --crate-version 0.1.0` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "d336a3ac7f3779244f146a1d62daa8f0c79d77ec3febfba7724d349e61128dc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d336a3ac7f3779244f146a1d62daa8f0c79d77ec3febfba7724d349e61128dc9", kill_on_drop: false }`
[INFO] [stdout] d336a3ac7f3779244f146a1d62daa8f0c79d77ec3febfba7724d349e61128dc9