[INFO] fetching crate olaf2 0.0.3...
[INFO] documenting olaf2-0.0.3 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate olaf2 0.0.3 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate olaf2 0.0.3 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] started tweaking crates.io crate olaf2 0.0.3
[INFO] finished tweaking crates.io crate olaf2 0.0.3
[INFO] tweaked toml for crates.io crate olaf2 0.0.3 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: the cargo feature `edition` is now stable and is no longer necessary to be listed in the manifest
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] [stdout] cab3aa56df9a1e717e824f3670d197ed014cb50c8f5e2ac61a4efa5ebac59e66
[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" "cab3aa56df9a1e717e824f3670d197ed014cb50c8f5e2ac61a4efa5ebac59e66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cab3aa56df9a1e717e824f3670d197ed014cb50c8f5e2ac61a4efa5ebac59e66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cab3aa56df9a1e717e824f3670d197ed014cb50c8f5e2ac61a4efa5ebac59e66", kill_on_drop: false }`
[INFO] [stdout] cab3aa56df9a1e717e824f3670d197ed014cb50c8f5e2ac61a4efa5ebac59e66
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] [stdout] 2cab55f1e89eff4414bce74dd60888c0bb0dd5bebabcb1cef07b08be21c29806
[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" "2cab55f1e89eff4414bce74dd60888c0bb0dd5bebabcb1cef07b08be21c29806", kill_on_drop: false }`
[INFO] [stderr] warning: the cargo feature `edition` is now stable and is no longer necessary to be listed in the manifest
[INFO] [stderr]     Checking zeroize v1.1.0
[INFO] [stderr]    Compiling v_htmlescape v0.4.5
[INFO] [stderr]     Checking canonical-path v0.1.1
[INFO] [stderr]    Compiling clear_on_drop v0.2.4
[INFO] [stderr]     Checking tower-service v0.1.0
[INFO] [stderr]    Compiling actix-web v0.7.19
[INFO] [stderr]     Checking isatty v0.1.9
[INFO] [stderr]     Checking want v0.2.0
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]     Checking universal-hash v0.3.0
[INFO] [stderr]     Checking flate2 v1.0.17
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking aes-soft v0.3.3
[INFO] [stderr]     Checking curl v0.4.33
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking env_logger v0.5.13
[INFO] [stderr]    Compiling actix_derive v0.3.2
[INFO] [stderr]    Compiling abscissa_derive v0.0.2
[INFO] [stderr]     Checking tokio-threadpool v0.1.18
[INFO] [stderr]     Checking polyval v0.3.3
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking serde_qs v0.4.6
[INFO] [stderr]     Checking simplelog v0.5.3
[INFO] [stderr]     Checking ghash v0.2.3
[INFO] [stderr]     Checking aes v0.3.2
[INFO] [stderr]     Checking aes-gcm v0.5.0
[INFO] [stderr]     Checking tokio-reactor v0.1.12
[INFO] [stderr]     Checking tokio-codec v0.1.2
[INFO] [stderr]     Checking h2 v0.1.26
[INFO] [stderr]     Checking cookie v0.11.3
[INFO] [stderr]     Checking tokio-fs v0.1.7
[INFO] [stderr]     Checking tokio-tcp v0.1.4
[INFO] [stderr]     Checking tokio-udp v0.1.6
[INFO] [stderr]     Checking tokio-uds v0.2.7
[INFO] [stderr]     Checking tokio-signal v0.2.9
[INFO] [stderr]     Checking cookie v0.12.0
[INFO] [stderr]     Checking serde_urlencoded v0.5.5
[INFO] [stderr]     Checking oauth2 v2.0.0
[INFO] [stderr]     Checking url_serde v0.2.0
[INFO] [stderr]    Compiling v_escape_derive v0.5.6
[INFO] [stderr]     Checking trust-dns-proto v0.6.3
[INFO] [stderr]     Checking trust-dns-proto v0.5.0
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking cookie_store v0.7.0
[INFO] [stderr]     Checking abscissa v0.0.4
[INFO] [stderr]     Checking hyper v0.12.35
[INFO] [stderr]     Checking v_escape v0.7.4
[INFO] [stderr]     Checking trust-dns-resolver v0.10.3
[INFO] [stderr]     Checking actix v0.7.9
[INFO] [stderr]     Checking hyper-tls v0.3.2
[INFO] [stderr]     Checking actix-net v0.2.6
[INFO] [stderr]     Checking reqwest v0.9.24
[INFO] [stderr]  Documenting olaf2 v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0252]: the name `Serialize` is defined multiple times
[INFO] [stdout]  --> src/msgs.rs:3:33
[INFO] [stdout]   |
[INFO] [stdout] 2 | use serde::{de::DeserializeOwned, Serialize};
[INFO] [stdout]   |                                   --------- previous import of the macro `Serialize` here
[INFO] [stdout] 3 | use serde_derive::{Deserialize, Serialize};
[INFO] [stdout]   |                                 ^^^^^^^^^ `Serialize` reimported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Serialize` must be defined only once in the macro namespace of this module
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `actix_web::server::Server`
[INFO] [stdout]   --> src/client.rs:14:20
[INFO] [stdout]    |
[INFO] [stdout] 14 |     server::{self, Server},
[INFO] [stdout]    |                    ^^^^^^ no `Server` in `server`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> src/lib.rs:151:1
[INFO] [stdout]     |
[INFO] [stdout] 151 | #![feature(uniform_paths)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0252, E0432, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0252`.
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `olaf2`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name olaf2 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 abscissa=/opt/rustwide/target/debug/deps/libabscissa-aa067003deb0f149.rmeta --extern actix=/opt/rustwide/target/debug/deps/libactix-68085f3dfa935d88.rmeta --extern actix_web=/opt/rustwide/target/debug/deps/libactix_web-79fb5a798590eea4.rmeta --extern base64=/opt/rustwide/target/debug/deps/libbase64-49de4105eb347adf.rmeta --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-2ce3bc89c43a69b6.rmeta --extern failure=/opt/rustwide/target/debug/deps/libfailure-d9fcd1e065ee1e23.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-29a973654112bb9d.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-57a7edc7f441d44c.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-958bf2a074a4960f.rmeta --extern oauth2=/opt/rustwide/target/debug/deps/liboauth2-d60d4525ecdef3a3.rmeta --extern open=/opt/rustwide/target/debug/deps/libopen-b6a76bfdc3a7dd16.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-d5ebcbb7c8cc870f.rmeta --extern reqwest=/opt/rustwide/target/debug/deps/libreqwest-1edf9ac3cd2d89a4.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-cf2a7db764a470fc.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-3af9a6345491720f.so --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-00b105e50b749454.rmeta --extern serde_qs=/opt/rustwide/target/debug/deps/libserde_qs-39cd29b3322c3c73.rmeta --extern toml=/opt/rustwide/target/debug/deps/libtoml-d2a7ff022724738f.rmeta --extern url=/opt/rustwide/target/debug/deps/liburl-ef2db2b8d2bcd0b5.rmeta --extern url_serde=/opt/rustwide/target/debug/deps/liburl_serde-c3b5ed32a41ed8f0.rmeta --cap-lints=warn` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "2cab55f1e89eff4414bce74dd60888c0bb0dd5bebabcb1cef07b08be21c29806", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2cab55f1e89eff4414bce74dd60888c0bb0dd5bebabcb1cef07b08be21c29806", kill_on_drop: false }`
[INFO] [stdout] 2cab55f1e89eff4414bce74dd60888c0bb0dd5bebabcb1cef07b08be21c29806