[INFO] cloning repository https://github.com/mehcode/lintel-nes
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mehcode/lintel-nes" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmehcode%2Flintel-nes", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmehcode%2Flintel-nes'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fbc2385fdf8ebd3a6a31bbd8f7dd044b307f6dd3
[INFO] documenting mehcode/lintel-nes 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%2Fmehcode%2Flintel-nes" "/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/mehcode/lintel-nes 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/mehcode/lintel-nes
[INFO] finished tweaking git repo https://github.com/mehcode/lintel-nes
[INFO] tweaked toml for git repo https://github.com/mehcode/lintel-nes written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/mehcode/lintel-nes 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] 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] 15063798cf557583dd6d99fd48b278dce8946e1dbd1bf9db187325cd5a18acca
[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" "15063798cf557583dd6d99fd48b278dce8946e1dbd1bf9db187325cd5a18acca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "15063798cf557583dd6d99fd48b278dce8946e1dbd1bf9db187325cd5a18acca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15063798cf557583dd6d99fd48b278dce8946e1dbd1bf9db187325cd5a18acca", kill_on_drop: false }`
[INFO] [stdout] 15063798cf557583dd6d99fd48b278dce8946e1dbd1bf9db187325cd5a18acca
[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] 022db0b4b23b2d3e3346d33a2b18eaa184e705921fe2a798d224141569aef581
[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" "022db0b4b23b2d3e3346d33a2b18eaa184e705921fe2a798d224141569aef581", kill_on_drop: false }`
[INFO] [stderr]    Compiling sdl2-sys v0.27.2
[INFO] [stderr]     Checking log v0.3.6
[INFO] [stderr]     Checking strfmt v0.1.5
[INFO] [stderr]     Checking num v0.1.36
[INFO] [stderr]     Checking env_logger v0.3.5
[INFO] [stderr]     Checking sdl2 v0.27.2
[INFO] [stderr]  Documenting lintel_nes v0.0.0 (/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(type_ascription)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(range_contains)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 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 `lintel_nes`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name lintel_nes 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 bitflags=/opt/rustwide/target/debug/deps/libbitflags-4f838929e4715413.rmeta --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-2a568a58fbc9d59b.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-df98740b865950cd.rmeta --extern sdl2=/opt/rustwide/target/debug/deps/libsdl2-b65befe04f9a274a.rmeta --extern strfmt=/opt/rustwide/target/debug/deps/libstrfmt-58de75a673a6b8de.rmeta --cap-lints=warn --crate-version 0.0.0` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "022db0b4b23b2d3e3346d33a2b18eaa184e705921fe2a798d224141569aef581", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "022db0b4b23b2d3e3346d33a2b18eaa184e705921fe2a798d224141569aef581", kill_on_drop: false }`
[INFO] [stdout] 022db0b4b23b2d3e3346d33a2b18eaa184e705921fe2a798d224141569aef581
