[INFO] cloning repository https://github.com/plistig/blindkopie
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/plistig/blindkopie" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fplistig%2Fblindkopie", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fplistig%2Fblindkopie'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3e0d1c8505bf7068c6b3df0304650831c28d8074
[INFO] documenting plistig/blindkopie 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%2Fplistig%2Fblindkopie" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/plistig/blindkopie 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/plistig/blindkopie
[INFO] finished tweaking git repo https://github.com/plistig/blindkopie
[INFO] tweaked toml for git repo https://github.com/plistig/blindkopie written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/plistig/blindkopie 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 7765f3f4e9a51d0cc85d371f9f78941f1c02190b52bc153976448be6e628fa2f
[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" "7765f3f4e9a51d0cc85d371f9f78941f1c02190b52bc153976448be6e628fa2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7765f3f4e9a51d0cc85d371f9f78941f1c02190b52bc153976448be6e628fa2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7765f3f4e9a51d0cc85d371f9f78941f1c02190b52bc153976448be6e628fa2f", kill_on_drop: false }`
[INFO] [stdout] 7765f3f4e9a51d0cc85d371f9f78941f1c02190b52bc153976448be6e628fa2f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 71d930729b77694f4641640824be3322f122add516ebe4a6337d7c9a7f1b0f74
[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" "71d930729b77694f4641640824be3322f122add516ebe4a6337d7c9a7f1b0f74", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]     Checking data-encoding v2.3.2
[INFO] [stderr]     Checking utf-8 v0.7.6
[INFO] [stderr]    Compiling tinystr-raw v0.1.1
[INFO] [stderr]    Compiling tokio v1.8.0
[INFO] [stderr]     Checking input_buffer v0.4.0
[INFO] [stderr]     Checking tracing v0.1.26
[INFO] [stderr]    Compiling tinystr-macros v0.2.0
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking ring v0.16.20
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking socket2 v0.4.0
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking hostname v0.3.1
[INFO] [stderr]     Checking nix v0.20.0
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking fd-lock v2.0.0
[INFO] [stderr]     Checking memfd v0.4.0
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking nix v0.21.0
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking resolv-conf v0.7.0
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking pretty_env_logger v0.4.0
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking tokio-codec v0.1.2
[INFO] [stderr]     Checking sct v0.6.1
[INFO] [stderr]     Checking webpki v0.21.4
[INFO] [stderr]     Checking ct-logs v0.8.0
[INFO] [stderr]     Checking rustls v0.19.1
[INFO] [stderr]     Checking webpki-roots v0.21.1
[INFO] [stderr]     Checking rustyline v8.2.0
[INFO] [stderr]     Checking ctrlc v3.1.9
[INFO] [stderr]    Compiling futures-macro v0.3.15
[INFO] [stderr]    Compiling tokio-macros v1.2.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling async-trait v0.1.50
[INFO] [stderr]    Compiling enum-as-inner v0.3.3
[INFO] [stderr]    Compiling pin-project-internal v1.0.7
[INFO] [stderr]     Checking futures-util v0.3.15
[INFO] [stderr]     Checking thiserror v1.0.26
[INFO] [stderr]     Checking tungstenite v0.13.0
[INFO] [stderr]     Checking pin-project v1.0.7
[INFO] [stderr]     Checking futures-executor v0.3.15
[INFO] [stderr]     Checking futures v0.3.15
[INFO] [stderr]     Checking common-multipart-rfc7578 v0.3.0
[INFO] [stderr]     Checking serde v1.0.126
[INFO] [stderr]     Checking tokio-rustls v0.22.0
[INFO] [stderr]     Checking tokio-util v0.6.7
[INFO] [stderr]     Checking trust-dns-proto v0.20.3
[INFO] [stderr]     Checking async-tungstenite v0.13.1
[INFO] [stderr]     Checking tokio-tungstenite v0.14.0
[INFO] [stderr]     Checking h2 v0.3.3
[INFO] [stderr]     Checking trust-dns-rustls v0.20.3
[INFO] [stderr]     Checking tinystr v0.4.7
[INFO] [stderr]     Checking ron v0.6.4
[INFO] [stderr]     Checking serde-xml-rs v0.4.1
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking serde_qs v0.8.4
[INFO] [stderr]     Checking hyper v0.14.9
[INFO] [stderr]     Checking trust-dns-https v0.20.3
[INFO] [stderr]     Checking trust-dns-resolver v0.20.3
[INFO] [stderr]     Checking hyper-multipart-rfc7578 v0.5.0
[INFO] [stderr]     Checking hyper-trust-dns-connector v0.3.0
[INFO] [stderr]     Checking hyper-rustls v0.22.1
[INFO] [stderr]  Documenting blindkopie 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:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | #![feature(control_flow_enum)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/main.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | #![feature(exit_status_error)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/main.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | #![feature(try_trait_v2)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 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 `blindkopie`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name blindkopie 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-53da55f2f9963cdd.rmeta --extern async_tungstenite=/opt/rustwide/target/debug/deps/libasync_tungstenite-303b189d1862deb6.rmeta --extern base64=/opt/rustwide/target/debug/deps/libbase64-06135271d248c171.rmeta --extern bytes=/opt/rustwide/target/debug/deps/libbytes-7b9084f8ae89ce82.rmeta --extern chrono=/opt/rustwide/target/debug/deps/libchrono-75fc5acccf982796.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-0e08248f587c7870.rmeta --extern common_multipart_rfc7578=/opt/rustwide/target/debug/deps/libcommon_multipart_rfc7578-5b48e94c9a3d5856.rmeta --extern ct_logs=/opt/rustwide/target/debug/deps/libct_logs-c6819afe2c7534a4.rmeta --extern ctrlc=/opt/rustwide/target/debug/deps/libctrlc-05738baa00585435.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-a89a60da08a03a3e.rmeta --extern futures_util=/opt/rustwide/target/debug/deps/libfutures_util-de72d7d6b18f89cd.rmeta --extern getrandom=/opt/rustwide/target/debug/deps/libgetrandom-02f80ef01b1e6a0f.rmeta --extern hyper=/opt/rustwide/target/debug/deps/libhyper-8866a5447520956b.rmeta --extern hyper_multipart_rfc7578=/opt/rustwide/target/debug/deps/libhyper_multipart_rfc7578-03f875fc2fbf8220.rmeta --extern hyper_rustls=/opt/rustwide/target/debug/deps/libhyper_rustls-8cbd0c7c49f09157.rmeta --extern hyper_trust_dns_connector=/opt/rustwide/target/debug/deps/libhyper_trust_dns_connector-3eadd552ac8c0451.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-f8abb66ffc16068c.rmeta --extern memfd=/opt/rustwide/target/debug/deps/libmemfd-8340a1cc7d807348.rmeta --extern memmap=/opt/rustwide/target/debug/deps/libmemmap-7fe18ad300707731.rmeta --extern mime=/opt/rustwide/target/debug/deps/libmime-21774ff537d36263.rmeta --extern nix=/opt/rustwide/target/debug/deps/libnix-228c07d0d35a215c.rmeta --extern parking_lot=/opt/rustwide/target/debug/deps/libparking_lot-5ea04c06a28301ec.rmeta --extern percent_encoding=/opt/rustwide/target/debug/deps/libpercent_encoding-ede8fd58102f5c41.rmeta --extern pretty_env_logger=/opt/rustwide/target/debug/deps/libpretty_env_logger-053d736dd47eff75.rmeta --extern ron=/opt/rustwide/target/debug/deps/libron-06c074dcf5e13a0a.rmeta --extern rustls=/opt/rustwide/target/debug/deps/librustls-3da9e8aa0547af04.rmeta --extern rustyline=/opt/rustwide/target/debug/deps/librustyline-08745a498093f332.rmeta --extern scopeguard=/opt/rustwide/target/debug/deps/libscopeguard-5273a4110d9f80fc.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-971116b1cdd85d25.rmeta --extern serde_xml_rs=/opt/rustwide/target/debug/deps/libserde_xml_rs-b72e66f2fc76a456.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-270b1f43ec8e8242.rmeta --extern serde_qs=/opt/rustwide/target/debug/deps/libserde_qs-fd4fe636562fdfb7.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-63a9a5f112c773d7.rmeta --extern tinystr=/opt/rustwide/target/debug/deps/libtinystr-0eb46683d3247470.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-36f072e3963cdcc7.rmeta --extern tokio_codec=/opt/rustwide/target/debug/deps/libtokio_codec-1a43aa0510c17e44.rmeta --extern tokio_rustls=/opt/rustwide/target/debug/deps/libtokio_rustls-2558bed28fd551f9.rmeta --extern tokio_tungstenite=/opt/rustwide/target/debug/deps/libtokio_tungstenite-3ac5b7b9f1ea98bf.rmeta --extern tokio_util=/opt/rustwide/target/debug/deps/libtokio_util-24050fdfc365d2b4.rmeta --extern trust_dns_resolver=/opt/rustwide/target/debug/deps/libtrust_dns_resolver-aadd0ed580bc9ed9.rmeta --extern url=/opt/rustwide/target/debug/deps/liburl-3d3b752c57e02949.rmeta --extern webpki_roots=/opt/rustwide/target/debug/deps/libwebpki_roots-25f6ca8ea29a5557.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "71d930729b77694f4641640824be3322f122add516ebe4a6337d7c9a7f1b0f74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71d930729b77694f4641640824be3322f122add516ebe4a6337d7c9a7f1b0f74", kill_on_drop: false }`
[INFO] [stdout] 71d930729b77694f4641640824be3322f122add516ebe4a6337d7c9a7f1b0f74
