[INFO] cloning repository https://github.com/qbit-org-ua/lolcoin-2018
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/qbit-org-ua/lolcoin-2018" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqbit-org-ua%2Flolcoin-2018", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqbit-org-ua%2Flolcoin-2018'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4ec1fff59b24982fedc1aa1c1eac8e0ac6c5effd
[INFO] documenting qbit-org-ua/lolcoin-2018 against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqbit-org-ua%2Flolcoin-2018" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/qbit-org-ua/lolcoin-2018 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/qbit-org-ua/lolcoin-2018
[INFO] finished tweaking git repo https://github.com/qbit-org-ua/lolcoin-2018
[INFO] tweaked toml for git repo https://github.com/qbit-org-ua/lolcoin-2018 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/qbit-org-ua/lolcoin-2018 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: the cargo feature `edition` has been stabilized in the 1.31 release and is no longer necessary to be listed in the manifest
[INFO] [stderr]   See https://doc.rust-lang.org/beta/cargo/reference/manifest.html#the-edition-field for more information about using this feature.
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tungstenite v0.6.0
[INFO] [stderr]   Downloaded multi_mut v0.1.3
[INFO] [stderr]   Downloaded warp v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5b0bb28df2468676538164c64e2a22130e8f55f7f17fc1d82c907afe1b7a7d04
[INFO] running `Command { std: "docker" "start" "-a" "5b0bb28df2468676538164c64e2a22130e8f55f7f17fc1d82c907afe1b7a7d04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b0bb28df2468676538164c64e2a22130e8f55f7f17fc1d82c907afe1b7a7d04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b0bb28df2468676538164c64e2a22130e8f55f7f17fc1d82c907afe1b7a7d04", kill_on_drop: false }`
[INFO] [stdout] 5b0bb28df2468676538164c64e2a22130e8f55f7f17fc1d82c907afe1b7a7d04
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6372f3e01f3c9080c262143d2618bf00884145fbbc3bee4897a771e19203921d
[INFO] running `Command { std: "docker" "start" "-a" "6372f3e01f3c9080c262143d2618bf00884145fbbc3bee4897a771e19203921d", kill_on_drop: false }`
[INFO] [stderr] warning: the cargo feature `edition` has been stabilized in the 1.31 release and is no longer necessary to be listed in the manifest
[INFO] [stderr]   See https://doc.rust-lang.org/beta/cargo/reference/manifest.html#the-edition-field for more information about using this feature.
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking byteorder v1.2.4
[INFO] [stderr]     Checking futures v0.1.23
[INFO] [stderr]    Compiling proc-macro2 v0.4.12
[INFO] [stderr]     Checking lazycell v0.6.0
[INFO] [stderr]     Checking matches v0.1.7
[INFO] [stderr]     Checking itoa v0.4.2
[INFO] [stderr]    Compiling serde v1.0.71
[INFO] [stderr]    Compiling cc v1.0.18
[INFO] [stderr]    Compiling httparse v1.3.2
[INFO] [stderr]     Checking arrayref v0.3.4
[INFO] [stderr]    Compiling ryu v0.2.3
[INFO] [stderr]     Checking byte-tools v0.2.0
[INFO] [stderr]     Checking indexmap v1.0.1
[INFO] [stderr]     Checking safemem v0.2.0
[INFO] [stderr]    Compiling failure_derive v0.1.2
[INFO] [stderr]     Checking string v0.1.1
[INFO] [stderr]     Checking rand_core v0.2.1
[INFO] [stderr]     Checking utf-8 v0.7.4
[INFO] [stderr]     Checking dtoa v0.4.3
[INFO] [stderr]     Checking multi_mut v0.1.3
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling unicase v2.1.0
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking log v0.4.3
[INFO] [stderr]     Checking crossbeam-utils v0.3.2
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]    Compiling rand v0.4.2
[INFO] [stderr]     Checking generic-array v0.9.0
[INFO] [stderr]     Checking block-buffer v0.3.3
[INFO] [stderr]     Checking crossbeam-epoch v0.4.3
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking bytes v0.4.9
[INFO] [stderr]     Checking base64 v0.9.2
[INFO] [stderr]     Checking digest v0.7.5
[INFO] [stderr]     Checking rand v0.5.5
[INFO] [stderr]     Checking mio v0.6.15
[INFO] [stderr]     Checking sha-1 v0.7.0
[INFO] [stderr]     Checking crossbeam-deque v0.3.1
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]    Compiling phf_shared v0.7.22
[INFO] [stderr]     Checking http v0.1.10
[INFO] [stderr]     Checking input_buffer v0.2.0
[INFO] [stderr]     Checking phf v0.7.22
[INFO] [stderr]     Checking tokio-executor v0.1.3
[INFO] [stderr]     Checking tokio-io v0.1.7
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking want v0.0.6
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]    Compiling phf_generator v0.7.22
[INFO] [stderr]     Checking mime v0.3.9
[INFO] [stderr]     Checking tokio-threadpool v0.1.5
[INFO] [stderr]     Checking tokio-timer v0.2.5
[INFO] [stderr]    Compiling phf_codegen v0.7.22
[INFO] [stderr]    Compiling quote v0.6.6
[INFO] [stderr]     Checking tokio-reactor v0.1.3
[INFO] [stderr]     Checking tokio-codec v0.1.0
[INFO] [stderr]    Compiling syn v0.14.8
[INFO] [stderr]    Compiling mime_guess v2.0.0-alpha.6
[INFO] [stderr]     Checking url v1.7.1
[INFO] [stderr]     Checking tokio-fs v0.1.3
[INFO] [stderr]     Checking tokio-udp v0.1.1
[INFO] [stderr]     Checking tokio-tcp v0.1.1
[INFO] [stderr]     Checking tokio v0.1.7
[INFO] [stderr]     Checking tungstenite v0.6.0
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]     Checking h2 v0.1.12
[INFO] [stderr]     Checking serde_urlencoded v0.5.3
[INFO] [stderr]     Checking serde_json v1.0.26
[INFO] [stderr]     Checking uuid v0.6.5
[INFO] [stderr]    Compiling synstructure v0.9.0
[INFO] [stderr]     Checking hyper v0.12.8
[INFO] [stderr]    Compiling serde_derive v1.0.71
[INFO] [stderr]     Checking warp v0.1.2
[INFO] [stderr]     Checking failure v0.1.2
[INFO] [stderr]  Documenting lolcoin v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning[E0705]: the feature `rust_2018_preview` is included in the Rust 2018 edition
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(rust_2018_preview, uniform_paths)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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(rust_2018_preview, uniform_paths)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `uniform_paths` has been stable since 1.32.0 and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0705.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `lolcoin`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name lolcoin 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 failure=/opt/rustwide/target/debug/deps/libfailure-3706c45046859a1d.rmeta --extern multi_mut=/opt/rustwide/target/debug/deps/libmulti_mut-14f5fc58c5c3d8d1.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-ccfb9c9c77e6ab3f.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-46a471b47200f106.so --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-53ca4ba1bf1f3b96.rmeta --extern uuid=/opt/rustwide/target/debug/deps/libuuid-340e1abae2d7be5d.rmeta --extern warp=/opt/rustwide/target/debug/deps/libwarp-f8979ba7c26acfc1.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "6372f3e01f3c9080c262143d2618bf00884145fbbc3bee4897a771e19203921d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6372f3e01f3c9080c262143d2618bf00884145fbbc3bee4897a771e19203921d", kill_on_drop: false }`
[INFO] [stdout] 6372f3e01f3c9080c262143d2618bf00884145fbbc3bee4897a771e19203921d
