[INFO] cloning repository https://github.com/mipli/wily-the-wizard
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mipli/wily-the-wizard" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmipli%2Fwily-the-wizard", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmipli%2Fwily-the-wizard'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0c0616c3b477510e8401288b816826f40e366265
[INFO] documenting mipli/wily-the-wizard 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%2Fmipli%2Fwily-the-wizard" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mipli/wily-the-wizard 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/mipli/wily-the-wizard
[INFO] finished tweaking git repo https://github.com/mipli/wily-the-wizard
[INFO] tweaked toml for git repo https://github.com/mipli/wily-the-wizard written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/mipli/wily-the-wizard 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/mipli/spawning-pool.git`
[INFO] [stderr]     Updating git repository `https://github.com/Gustorn/tcod-rs.git`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_derive v1.0.43
[INFO] [stderr]   Downloaded Inflector v0.11.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 0b42321ba31aa2587443b150a8f72a208ec2b871cc24dfe6607ab2670f1e31b5
[INFO] running `Command { std: "docker" "start" "-a" "0b42321ba31aa2587443b150a8f72a208ec2b871cc24dfe6607ab2670f1e31b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b42321ba31aa2587443b150a8f72a208ec2b871cc24dfe6607ab2670f1e31b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b42321ba31aa2587443b150a8f72a208ec2b871cc24dfe6607ab2670f1e31b5", kill_on_drop: false }`
[INFO] [stdout] 0b42321ba31aa2587443b150a8f72a208ec2b871cc24dfe6607ab2670f1e31b5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] [stdout] aa93e27c0fad98ac98476e1166222d4a802960e0ec8fbcd4c26a9d3a67058d22
[INFO] running `Command { std: "docker" "start" "-a" "aa93e27c0fad98ac98476e1166222d4a802960e0ec8fbcd4c26a9d3a67058d22", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking libc v0.2.40
[INFO] [stderr]     Checking serde v1.0.43
[INFO] [stderr]     Checking itoa v0.4.1
[INFO] [stderr]     Checking dtoa v0.4.2
[INFO] [stderr]    Compiling cc v1.0.17
[INFO] [stderr]    Compiling pkg-config v0.3.11
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking ucd-util v0.1.1
[INFO] [stderr]    Compiling regex v0.2.10
[INFO] [stderr]     Checking lazy_static v1.0.0
[INFO] [stderr]     Checking utf8-ranges v1.0.0
[INFO] [stderr]     Checking lazy_static v0.1.16
[INFO] [stderr]     Checking linked-hash-map v0.5.1
[INFO] [stderr]     Checking bitflags v0.1.1
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]    Compiling proc-macro2 v0.3.8
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking regex-syntax v0.5.5
[INFO] [stderr]     Checking yaml-rust v0.4.0
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]    Compiling quote v0.5.2
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking time v0.1.39
[INFO] [stderr]    Compiling syn v0.13.4
[INFO] [stderr]     Checking aho-corasick v0.6.4
[INFO] [stderr]    Compiling tcod-sys v5.0.0 (https://github.com/Gustorn/tcod-rs.git?branch=tcod-16-upstream-rebase#a7d69d16)
[INFO] [stderr]     Checking simple-stopwatch v0.1.4
[INFO] [stderr]    Compiling serde_derive_internals v0.23.1
[INFO] [stderr]     Checking Inflector v0.11.2
[INFO] [stderr]     Checking serde_json v1.0.16
[INFO] [stderr]    Compiling serde_derive v1.0.43
[INFO] [stderr]     Checking geo v0.1.0 (/opt/rustwide/workdir/geo)
[INFO] [stderr]     Checking spawning_pool v0.1.0 (https://github.com/mipli/spawning-pool.git#df795ff2)
[INFO] [stderr]  Documenting geo v0.1.0 (/opt/rustwide/workdir/geo)
[INFO] [stderr]     Checking map_generator v0.1.0 (/opt/rustwide/workdir/map_generator)
[INFO] [stderr]  Documenting map_generator v0.1.0 (/opt/rustwide/workdir/map_generator)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> map_generator/src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(drain_filter)]
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> map_generator/src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(drain_filter)]
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `map_generator` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `map_generator`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name map_generator map_generator/src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=bf4c1f6d73ddffad -L dependency=/opt/rustwide/target/debug/deps --extern geo=/opt/rustwide/target/debug/deps/libgeo-e3d47fd4947a4d94.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-84ff5a99cda5be68.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-757dbf34a5420405.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-1c850bb6a607dc7f.so --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-cb23e78f667f15fc.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "aa93e27c0fad98ac98476e1166222d4a802960e0ec8fbcd4c26a9d3a67058d22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa93e27c0fad98ac98476e1166222d4a802960e0ec8fbcd4c26a9d3a67058d22", kill_on_drop: false }`
[INFO] [stdout] aa93e27c0fad98ac98476e1166222d4a802960e0ec8fbcd4c26a9d3a67058d22