[INFO] cloning repository https://github.com/divinusdracodominus/trellobot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/divinusdracodominus/trellobot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdivinusdracodominus%2Ftrellobot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdivinusdracodominus%2Ftrellobot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5358cbe52612b4afc45658162d67d75569b88390
[INFO] documenting divinusdracodominus/trellobot 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%2Fdivinusdracodominus%2Ftrellobot" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/divinusdracodominus/trellobot 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/divinusdracodominus/trellobot
[INFO] finished tweaking git repo https://github.com/divinusdracodominus/trellobot
[INFO] tweaked toml for git repo https://github.com/divinusdracodominus/trellobot written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/divinusdracodominus/trellobot 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 76f16952eaf64cffb9c44a08a7f5eae93f2b39cf3a81414fe1bcebee92ae92cb
[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" "76f16952eaf64cffb9c44a08a7f5eae93f2b39cf3a81414fe1bcebee92ae92cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "76f16952eaf64cffb9c44a08a7f5eae93f2b39cf3a81414fe1bcebee92ae92cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76f16952eaf64cffb9c44a08a7f5eae93f2b39cf3a81414fe1bcebee92ae92cb", kill_on_drop: false }`
[INFO] [stdout] 76f16952eaf64cffb9c44a08a7f5eae93f2b39cf3a81414fe1bcebee92ae92cb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 5a075c4b32be63229cf2d615c3899e5be7ae8f7fd8bd8f143e8ba3f1b5f259df
[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" "5a075c4b32be63229cf2d615c3899e5be7ae8f7fd8bd8f143e8ba3f1b5f259df", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.51
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.68.0
[INFO] [stderr]    Compiling target-lexicon v0.11.1
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling anyhow v1.0.35
[INFO] [stderr]     Checking wasmparser v0.65.0
[INFO] [stderr]    Compiling wasmtime-cache v0.21.0
[INFO] [stderr]     Checking bytes v0.6.0
[INFO] [stderr]     Checking base64-rs v0.1.1
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling tokio v0.3.4
[INFO] [stderr]    Compiling opus-sys v0.2.1
[INFO] [stderr]     Checking futures-channel v0.3.8
[INFO] [stderr]     Checking wast v28.0.0
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]     Checking dirs-sys-next v0.1.1
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking errno v0.2.7
[INFO] [stderr]     Checking daemonize v0.4.1
[INFO] [stderr]     Checking regalloc v0.0.31
[INFO] [stderr]     Checking log v0.3.9
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[INFO] [stderr]     Checking region v2.2.0
[INFO] [stderr]    Compiling err-derive v0.3.0
[INFO] [stderr]     Checking directories-next v1.0.3
[INFO] [stderr]     Checking crossbeam-epoch v0.9.1
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking tokio v0.2.23
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking opus v0.2.1
[INFO] [stderr]     Checking file-per-thread-logger v0.1.4
[INFO] [stderr]    Compiling cc v1.0.65
[INFO] [stderr]     Checking rayon-core v1.9.0
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[INFO] [stderr]     Checking rayon v1.5.0
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling ring v0.16.18
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling zstd-sys v1.4.17+zstd.1.4.5
[INFO] [stderr]    Compiling psm v0.1.12
[INFO] [stderr]    Compiling raw-cpuid v7.0.3
[INFO] [stderr]    Compiling wasmtime-runtime v0.21.0
[INFO] [stderr]    Compiling libsodium-sys v0.2.6
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling mime_guess v1.8.8
[INFO] [stderr]    Compiling openssl v0.10.30
[INFO] [stderr]    Compiling native-tls v0.2.6
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking wat v1.0.29
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[INFO] [stderr]     Checking sct v0.6.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]     Checking webpki-roots v0.20.0
[INFO] [stderr]     Checking rustls v0.18.1
[INFO] [stderr]     Checking websocket v0.18.0 (https://github.com/ArtemGr/rust-websocket?branch=hyper-bump#b5965662)
[INFO] [stderr]     Checking hyper-native-tls v0.3.0
[INFO] [stderr]     Checking tokio-rustls v0.14.1
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling thiserror-impl v1.0.22
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]    Compiling pin-project-internal v1.0.2
[INFO] [stderr]    Compiling futures-macro v0.3.8
[INFO] [stderr]    Compiling scroll_derive v0.10.4
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]    Compiling tokio-macros v0.3.1
[INFO] [stderr]     Checking scroll v0.10.2
[INFO] [stderr]     Checking thiserror v1.0.22
[INFO] [stderr]     Checking pin-project v0.4.27
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[INFO] [stderr]     Checking tracing-futures v0.2.4
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[INFO] [stderr]     Checking futures-util v0.3.8
[INFO] [stderr]     Checking serde v1.0.117
[INFO] [stderr]     Checking cranelift-entity v0.68.0
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]     Checking toml v0.5.7
[INFO] [stderr]     Checking serde_json v1.0.59
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking serde_urlencoded v0.7.0
[INFO] [stderr]     Checking ron v0.6.2
[INFO] [stderr]     Checking cranelift-bforest v0.68.0
[INFO] [stderr]     Checking gimli v0.22.0
[INFO] [stderr]     Checking object v0.21.1
[INFO] [stderr]     Checking h2 v0.2.7
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.68.0
[INFO] [stderr]     Checking hyper v0.13.9
[INFO] [stderr]     Checking zstd-safe v2.0.5+zstd.1.4.5
[INFO] [stderr]     Checking zstd v0.5.3+zstd.1.4.5
[INFO] [stderr]    Compiling cranelift-codegen v0.68.0
[INFO] [stderr]     Checking hyper-rustls v0.21.0
[INFO] [stderr]     Checking reqwest v0.10.9
[INFO] [stderr]     Checking sodiumoxide v0.2.6
[INFO] [stderr]     Checking discord v0.9.0 (https://github.com/SpaceManiac/discord-rs#cb4ce66e)
[INFO] [stderr]     Checking cranelift-frontend v0.68.0
[INFO] [stderr]     Checking cranelift-native v0.68.0
[INFO] [stderr]     Checking cranelift-wasm v0.68.0
[INFO] [stderr]     Checking wasmtime-environ v0.21.0
[INFO] [stderr]     Checking wasmtime-debug v0.21.0
[INFO] [stderr]     Checking wasmtime-cranelift v0.21.0
[INFO] [stderr]     Checking wasmtime-obj v0.21.0
[INFO] [stderr]     Checking wasmtime-profiling v0.21.0
[INFO] [stderr]     Checking wasmtime-jit v0.21.0
[INFO] [stderr]     Checking wasmtime v0.21.0
[INFO] [stderr]  Documenting trellobot v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | #![feature(let_chains)]
[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 `trellobot`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name trellobot src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern daemonize=/opt/rustwide/target/debug/deps/libdaemonize-2cc6d833118d2fe0.rmeta --extern discord=/opt/rustwide/target/debug/deps/libdiscord-afbde194307fc024.rmeta --extern err_derive=/opt/rustwide/target/debug/deps/liberr_derive-2576c42823d448f7.so --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-acd7d23482fe8b54.rmeta --extern reqwest=/opt/rustwide/target/debug/deps/libreqwest-acc36761f473dd7e.rmeta --extern ron=/opt/rustwide/target/debug/deps/libron-57ab19679dc3e257.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-1bd9bfb4a42dc4a0.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-e6b1fc22b1b85f0b.so --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-2db0d4daed9c96b7.rmeta --extern structopt=/opt/rustwide/target/debug/deps/libstructopt-bffa76a09d69bd3f.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-4dbdda4b8a327dbc.rmeta --extern wasmtime=/opt/rustwide/target/debug/deps/libwasmtime-369fa731819b259c.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "5a075c4b32be63229cf2d615c3899e5be7ae8f7fd8bd8f143e8ba3f1b5f259df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a075c4b32be63229cf2d615c3899e5be7ae8f7fd8bd8f143e8ba3f1b5f259df", kill_on_drop: false }`
[INFO] [stdout] 5a075c4b32be63229cf2d615c3899e5be7ae8f7fd8bd8f143e8ba3f1b5f259df
