[INFO] cloning repository https://github.com/ivosequeros/aletheia
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ivosequeros/aletheia" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fivosequeros%2Faletheia", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fivosequeros%2Faletheia'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c357cfeffc0502b7ba17663a0a5a749891c0cffb
[INFO] documenting ivosequeros/aletheia against 1.47.0 for beta-1.48-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fivosequeros%2Faletheia" "/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/ivosequeros/aletheia on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ivosequeros/aletheia
[INFO] finished tweaking git repo https://github.com/ivosequeros/aletheia
[INFO] tweaked toml for git repo https://github.com/ivosequeros/aletheia written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/ivosequeros/aletheia already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", 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] 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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 92006347edfb7d12a51e4bc77ee94fcc50da0e8fe1e422e69f529ee497807d01
[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" "92006347edfb7d12a51e4bc77ee94fcc50da0e8fe1e422e69f529ee497807d01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "92006347edfb7d12a51e4bc77ee94fcc50da0e8fe1e422e69f529ee497807d01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92006347edfb7d12a51e4bc77ee94fcc50da0e8fe1e422e69f529ee497807d01", kill_on_drop: false }`
[INFO] [stdout] 92006347edfb7d12a51e4bc77ee94fcc50da0e8fe1e422e69f529ee497807d01
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f107514e8235ac1a56f0a54ceed97aaf058f189858deb0f79a31c97b8ed36ac4
[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" "f107514e8235ac1a56f0a54ceed97aaf058f189858deb0f79a31c97b8ed36ac4", 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]     Checking strum v0.18.0
[INFO] [stderr]     Checking seahash v3.0.7
[INFO] [stderr]     Checking oorandom v11.1.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.36
[INFO] [stderr]    Compiling sys-info v0.7.0
[INFO] [stderr]     Checking futures-channel v0.3.4
[INFO] [stderr]    Compiling fasthash-sys v0.3.2
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking signal-hook-registry v1.2.0
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking xoroshiro128 v0.3.0
[INFO] [stderr]     Checking plotters v0.2.15
[INFO] [stderr]     Checking libflate v0.1.27
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking rayon-core v1.7.1
[INFO] [stderr]     Checking criterion-plot v0.4.2
[INFO] [stderr]    Compiling syn v1.0.30
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking rayon v1.3.1
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking backtrace v0.3.46
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]     Checking fasthash v0.4.0
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling serde_derive v1.0.110
[INFO] [stderr]    Compiling futures-macro v0.3.4
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling zerocopy-derive v0.2.0
[INFO] [stderr]    Compiling failure_derive v0.1.7
[INFO] [stderr]    Compiling typed-builder v0.5.1
[INFO] [stderr]    Compiling strum_macros v0.18.0
[INFO] [stderr]    Compiling derive_more v0.99.5
[INFO] [stderr]    Compiling async-trait v0.1.36
[INFO] [stderr]     Checking tokio v0.2.21
[INFO] [stderr]     Checking failure v0.1.7
[INFO] [stderr]     Checking futures-util v0.3.4
[INFO] [stderr]     Checking zerocopy v0.3.0
[INFO] [stderr]     Checking futures-executor v0.3.4
[INFO] [stderr]     Checking futures v0.3.4
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking serde v1.0.110
[INFO] [stderr]     Checking serde_json v1.0.53
[INFO] [stderr]     Checking bstr v0.2.13
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]     Checking tinytemplate v1.1.0
[INFO] [stderr]     Checking avro-rs v0.10.0
[INFO] [stderr]     Checking criterion v0.3.2
[INFO] [stderr]  Documenting gaze 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:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(map_first_last)]
[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 `gaze`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name gaze 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 async_trait=/opt/rustwide/target/debug/deps/libasync_trait-c050a9965423726f.so --extern avro_rs=/opt/rustwide/target/debug/deps/libavro_rs-cf612198a8020baf.rmeta --extern criterion=/opt/rustwide/target/debug/deps/libcriterion-6c11535905ab5605.rmeta --extern derive_more=/opt/rustwide/target/debug/deps/libderive_more-f4d6f1573bf3fc19.so --extern failure=/opt/rustwide/target/debug/deps/libfailure-58bc19574bdba3f8.rmeta --extern fasthash=/opt/rustwide/target/debug/deps/libfasthash-1e8d84b4a8b06490.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-bf03eb7cff0a23c4.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-2032d57742551e98.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-3f6f28731bd88c43.rmeta --extern sys_info=/opt/rustwide/target/debug/deps/libsys_info-4667653f7d508b53.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-2bd21276159feed3.rmeta --extern tokio_util=/opt/rustwide/target/debug/deps/libtokio_util-da48c1ccfa3f0604.rmeta --cap-lints=warn --crate-version 0.1.0` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "f107514e8235ac1a56f0a54ceed97aaf058f189858deb0f79a31c97b8ed36ac4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f107514e8235ac1a56f0a54ceed97aaf058f189858deb0f79a31c97b8ed36ac4", kill_on_drop: false }`
[INFO] [stdout] f107514e8235ac1a56f0a54ceed97aaf058f189858deb0f79a31c97b8ed36ac4
