[INFO] cloning repository https://github.com/sixleaveakkm/thermal-server-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sixleaveakkm/thermal-server-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsixleaveakkm%2Fthermal-server-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsixleaveakkm%2Fthermal-server-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f5fa5a92920bb88d19692d54d58def11f679a50d
[INFO] documenting sixleaveakkm/thermal-server-rust against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsixleaveakkm%2Fthermal-server-rust" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sixleaveakkm/thermal-server-rust on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-1/source/.cargo/config
[INFO] started tweaking git repo https://github.com/sixleaveakkm/thermal-server-rust
[INFO] finished tweaking git repo https://github.com/sixleaveakkm/thermal-server-rust
[INFO] tweaked toml for git repo https://github.com/sixleaveakkm/thermal-server-rust written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/sixleaveakkm/thermal-server-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "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] 3a239d26f912b32f48249679ec1b4211ce4f283eb8019349b2bb848e326a0e00
[INFO] running `Command { std: "docker" "start" "-a" "3a239d26f912b32f48249679ec1b4211ce4f283eb8019349b2bb848e326a0e00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3a239d26f912b32f48249679ec1b4211ce4f283eb8019349b2bb848e326a0e00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a239d26f912b32f48249679ec1b4211ce4f283eb8019349b2bb848e326a0e00", kill_on_drop: false }`
[INFO] [stdout] 3a239d26f912b32f48249679ec1b4211ce4f283eb8019349b2bb848e326a0e00
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "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] 2d1d7bf5b6b16c78bc2f991ba955cd5d93449c277278ffe1543b60c21aaf848e
[INFO] running `Command { std: "docker" "start" "-a" "2d1d7bf5b6b16c78bc2f991ba955cd5d93449c277278ffe1543b60c21aaf848e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling cc v1.0.52
[INFO] [stderr]    Compiling proc-macro2 v1.0.12
[INFO] [stderr]    Compiling openssl v0.10.29
[INFO] [stderr]     Checking smallvec v1.4.0
[INFO] [stderr]    Compiling syn v1.0.21
[INFO] [stderr]    Compiling ryu v1.0.4
[INFO] [stderr]    Compiling serde v1.0.110
[INFO] [stderr]     Checking iota v0.2.1
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]     Checking tokio-sync v0.1.8
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking tokio-executor v0.1.10
[INFO] [stderr]     Checking unicode-normalization v0.1.12
[INFO] [stderr]    Compiling openssl-src v111.9.0+1.1.1g
[INFO] [stderr]    Compiling quote v1.0.5
[INFO] [stderr]    Compiling openssl-sys v0.9.56
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking parking_lot_core v0.6.2
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking parking_lot v0.9.0
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking tokio-reactor v0.1.12
[INFO] [stderr]     Checking tokio-codec v0.1.2
[INFO] [stderr]     Checking tokio-tcp v0.1.4
[INFO] [stderr]     Checking hyper v0.10.16
[INFO] [stderr]    Compiling serde_derive v1.0.110
[INFO] [stderr]     Checking i2cdev v0.4.4
[INFO] [stderr]     Checking amg88xx v0.1.0 (https://github.com/sixleaveakkm/rust-amg88xx.git#b643e199)
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]     Checking serde_json v1.0.53
[INFO] [stderr]     Checking tokio-tls v0.2.1
[INFO] [stderr]     Checking websocket-base v0.24.0
[INFO] [stderr]     Checking websocket v0.24.0
[INFO] [stderr]  Documenting thermal 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(proc_macro_hygiene, decl_macro)]
[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 `thermal`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name thermal 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 amg88xx=/opt/rustwide/target/debug/deps/libamg88xx-d17da7912cfa7090.rmeta --extern i2cdev=/opt/rustwide/target/debug/deps/libi2cdev-3bcc84c581b5604b.rmeta --extern openssl=/opt/rustwide/target/debug/deps/libopenssl-edd853b0d2869887.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-9a5e1b6aa230360a.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-f53bef30f8e147af.rmeta --extern websocket=/opt/rustwide/target/debug/deps/libwebsocket-42fbf1e8121702f4.rmeta --cap-lints=warn` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "2d1d7bf5b6b16c78bc2f991ba955cd5d93449c277278ffe1543b60c21aaf848e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d1d7bf5b6b16c78bc2f991ba955cd5d93449c277278ffe1543b60c21aaf848e", kill_on_drop: false }`
[INFO] [stdout] 2d1d7bf5b6b16c78bc2f991ba955cd5d93449c277278ffe1543b60c21aaf848e