[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 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdivinusdracodominus%2Ftrellobot" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/divinusdracodominus/trellobot on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "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-3/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" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/SpaceManiac/discord-rs`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasmtime-runtime v0.21.0
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[INFO] [stderr]   Downloaded err-derive v0.3.0
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[INFO] [stderr]   Downloaded wasmtime-obj v0.21.0
[INFO] [stderr]   Downloaded cranelift-codegen-meta v0.68.0
[INFO] [stderr]   Downloaded wasmtime-environ v0.21.0
[INFO] [stderr]   Downloaded daemonize v0.4.1
[INFO] [stderr]   Downloaded wasmtime v0.21.0
[INFO] [stderr]   Downloaded wast v28.0.0
[INFO] [stderr]   Downloaded wasmtime-jit v0.21.0
[INFO] [stderr]   Downloaded tokio v0.3.4
[INFO] [stderr]   Downloaded cranelift-codegen v0.68.0
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a1ecb18805e06f0cf1e34a590f099a205edd4e58269904b24bc9c892ac45a13a
[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" "a1ecb18805e06f0cf1e34a590f099a205edd4e58269904b24bc9c892ac45a13a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a1ecb18805e06f0cf1e34a590f099a205edd4e58269904b24bc9c892ac45a13a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1ecb18805e06f0cf1e34a590f099a205edd4e58269904b24bc9c892ac45a13a", kill_on_drop: false }`
[INFO] [stdout] a1ecb18805e06f0cf1e34a590f099a205edd4e58269904b24bc9c892ac45a13a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", 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] a9aa1f0bcaa2775a11e89dc0bca969ba9c42ac8ff7cf9ce7ec9c757c1daff754
[INFO] running `Command { std: "docker" "start" "-a" "a9aa1f0bcaa2775a11e89dc0bca969ba9c42ac8ff7cf9ce7ec9c757c1daff754", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.51
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking smallvec v1.5.0
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.68.0
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[INFO] [stderr]     Checking fallible-iterator v0.2.0
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[INFO] [stderr]     Checking wasmparser v0.57.0
[INFO] [stderr]    Compiling rustversion v1.0.4
[INFO] [stderr]    Compiling wasmtime-cache v0.21.0
[INFO] [stderr]     Checking leb128 v0.2.4
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
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[INFO] [stderr]    Compiling opus-sys v0.2.1
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[INFO] [stderr]    Compiling raw-cpuid v7.0.3
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[INFO] [stderr]     Checking hyper v0.10.16
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling phf_codegen v0.7.24
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[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]     Checking webpki v0.21.3
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[INFO] [stderr]     Checking websocket v0.18.0 (https://github.com/ArtemGr/rust-websocket?branch=hyper-bump#b5965662)
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[INFO] [stderr]    Compiling pin-project-internal v0.4.27
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[INFO] [stderr]    Compiling tokio-macros v0.3.1
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[INFO] [stderr]     Checking tokio-rustls v0.14.1
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[INFO] [stderr]     Checking serde v1.0.117
[INFO] [stderr]    Compiling cranelift-entity v0.68.0
[INFO] [stderr]     Checking toml v0.5.7
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]     Checking serde_json v1.0.59
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[INFO] [stderr]     Checking object v0.21.1
[INFO] [stderr]     Checking h2 v0.2.7
[INFO] [stderr]     Checking hyper v0.13.9
[INFO] [stderr]     Checking zstd-safe v2.0.5+zstd.1.4.5
[INFO] [stderr]    Compiling cranelift-codegen v0.68.0
[INFO] [stderr]     Checking zstd v0.5.3+zstd.1.4.5
[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,artifacts,future-incompat --document-private-items -C metadata=9f72be9521a013fe -L dependency=/opt/rustwide/target/debug/deps --extern daemonize=/opt/rustwide/target/debug/deps/libdaemonize-650c1d4896f48e42.rmeta --extern discord=/opt/rustwide/target/debug/deps/libdiscord-b94868d5379a0f8b.rmeta --extern err_derive=/opt/rustwide/target/debug/deps/liberr_derive-6ce5a72d6e21a172.so --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-1479f2b7adeaa2b6.rmeta --extern reqwest=/opt/rustwide/target/debug/deps/libreqwest-d059ea1539cb3260.rmeta --extern ron=/opt/rustwide/target/debug/deps/libron-d2709710d3d503d8.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-9da571c813e3eb3d.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-b8b1e3c0da98a108.so --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-7afcdc762831cbd8.rmeta --extern structopt=/opt/rustwide/target/debug/deps/libstructopt-d9aab98176c7af61.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-c271c1ec701a3282.rmeta --extern wasmtime=/opt/rustwide/target/debug/deps/libwasmtime-c6982afab0dda4a7.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "a9aa1f0bcaa2775a11e89dc0bca969ba9c42ac8ff7cf9ce7ec9c757c1daff754", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9aa1f0bcaa2775a11e89dc0bca969ba9c42ac8ff7cf9ce7ec9c757c1daff754", kill_on_drop: false }`
[INFO] [stdout] a9aa1f0bcaa2775a11e89dc0bca969ba9c42ac8ff7cf9ce7ec9c757c1daff754