[INFO] cloning repository https://github.com/swordfeng/ireina
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/swordfeng/ireina" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fswordfeng%2Fireina", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fswordfeng%2Fireina'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d2a2f0b3ab6471c55137deca0e7ad869fc5bc95c
[INFO] documenting swordfeng/ireina 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%2Fswordfeng%2Fireina" "/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/swordfeng/ireina 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/swordfeng/ireina
[INFO] finished tweaking git repo https://github.com/swordfeng/ireina
[INFO] tweaked toml for git repo https://github.com/swordfeng/ireina written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/swordfeng/ireina 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-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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 75fe94f8fbef4976d76d0f3e4b29f43b2811f613b8fc175d395bd2ccba954f4c
[INFO] running `Command { std: "docker" "start" "-a" "75fe94f8fbef4976d76d0f3e4b29f43b2811f613b8fc175d395bd2ccba954f4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "75fe94f8fbef4976d76d0f3e4b29f43b2811f613b8fc175d395bd2ccba954f4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75fe94f8fbef4976d76d0f3e4b29f43b2811f613b8fc175d395bd2ccba954f4c", kill_on_drop: false }`
[INFO] [stdout] 75fe94f8fbef4976d76d0f3e4b29f43b2811f613b8fc175d395bd2ccba954f4c
[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] 6dc82d5745ae025dfb35d6cd96a880a824f817a1cb8a1794c4a7abed8f0904c4
[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" "6dc82d5745ae025dfb35d6cd96a880a824f817a1cb8a1794c4a7abed8f0904c4", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_json v1.0.62
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking getrandom v0.2.2
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking ring v0.16.20
[INFO] [stderr]     Checking futures-util v0.3.13
[INFO] [stderr]     Checking tokio v1.2.0
[INFO] [stderr]     Checking tracing-futures v0.2.5
[INFO] [stderr]     Checking serde-value v0.5.3
[INFO] [stderr]     Checking serde_urlencoded v0.7.0
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking rust_decimal v1.10.3
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking sct v0.6.1
[INFO] [stderr]     Checking webpki v0.21.4
[INFO] [stderr]     Checking telegram-bot-raw v0.7.0
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking rustls v0.19.1
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling mime_guess v1.8.8
[INFO] [stderr]     Checking futures-executor v0.3.13
[INFO] [stderr]     Checking futures v0.3.13
[INFO] [stderr]     Checking tokio-util v0.6.3
[INFO] [stderr]     Checking tokio-native-tls v0.3.0
[INFO] [stderr]     Checking async-compat v0.2.1
[INFO] [stderr]     Checking tokio-stream v0.1.3
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-tls v0.3.1
[INFO] [stderr]     Checking multipart v0.16.1
[INFO] [stderr]     Checking h2 v0.3.0
[INFO] [stderr]     Checking tokio-compat-02 v0.2.0
[INFO] [stderr]     Checking h2 v0.2.7
[INFO] [stderr]     Checking hyper v0.14.4
[INFO] [stderr]     Checking hyper v0.13.10
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.1
[INFO] [stderr]     Checking hyper-tls v0.4.3
[INFO] [stderr]     Checking telegram-bot v0.7.0
[INFO] [stderr]     Checking yahoo_finance_api v1.2.2
[INFO] [stderr]  Documenting ireina 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(async_closure)]
[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 `ireina`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name ireina 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-2bb0455753a8f12d.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-5f653ac4a062bee1.rmeta --extern once_cell=/opt/rustwide/target/debug/deps/libonce_cell-8de98f8ae9b21139.rmeta --extern reqwest=/opt/rustwide/target/debug/deps/libreqwest-e8a1782d8b866a22.rmeta --extern rust_decimal=/opt/rustwide/target/debug/deps/librust_decimal-368bbf16f2706ee2.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-0f852e4d7c99b884.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-12065d9be1b638a9.rmeta --extern telegram_bot=/opt/rustwide/target/debug/deps/libtelegram_bot-1f94b35b1793bd3f.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-ab54c2e80f8b5bc1.rmeta --extern tokio_compat_02=/opt/rustwide/target/debug/deps/libtokio_compat_02-1ef329ca24d42b6c.rmeta --extern yahoo_finance_api=/opt/rustwide/target/debug/deps/libyahoo_finance_api-e88bc15a702282b9.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "6dc82d5745ae025dfb35d6cd96a880a824f817a1cb8a1794c4a7abed8f0904c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6dc82d5745ae025dfb35d6cd96a880a824f817a1cb8a1794c4a7abed8f0904c4", kill_on_drop: false }`
[INFO] [stdout] 6dc82d5745ae025dfb35d6cd96a880a824f817a1cb8a1794c4a7abed8f0904c4
