[INFO] cloning repository https://github.com/aHeraud/brainfuck
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aHeraud/brainfuck" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FaHeraud%2Fbrainfuck", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FaHeraud%2Fbrainfuck'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] baf942808df3f2197ba3c94470d2273ba1fa0953
[INFO] documenting aHeraud/brainfuck 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%2FaHeraud%2Fbrainfuck" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aHeraud/brainfuck 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/aHeraud/brainfuck
[INFO] finished tweaking git repo https://github.com/aHeraud/brainfuck
[INFO] tweaked toml for git repo https://github.com/aHeraud/brainfuck written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/aHeraud/brainfuck 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]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 0366dd9afe12a8b3cf74b4436431bf95041e510de88044d0ebb24ce118fd600f
[INFO] running `Command { std: "docker" "start" "-a" "0366dd9afe12a8b3cf74b4436431bf95041e510de88044d0ebb24ce118fd600f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0366dd9afe12a8b3cf74b4436431bf95041e510de88044d0ebb24ce118fd600f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0366dd9afe12a8b3cf74b4436431bf95041e510de88044d0ebb24ce118fd600f", kill_on_drop: false }`
[INFO] [stdout] 0366dd9afe12a8b3cf74b4436431bf95041e510de88044d0ebb24ce118fd600f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 17da7c20b730b463429174ae7cd7f47b72f8023f069019db53f6dde30e3d3488
[INFO] running `Command { std: "docker" "start" "-a" "17da7c20b730b463429174ae7cd7f47b72f8023f069019db53f6dde30e3d3488", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.43
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]  Documenting bf 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(nll)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/jit/mod.rs:39:20
[INFO] [stdout]    |
[INFO] [stdout] 39 |         let native_proc: (extern "sysv64" fn(usize) -> ()) = transmute(native_code.get_pointer());
[INFO] [stdout]    |                          ^                               ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 39 -         let native_proc: (extern "sysv64" fn(usize) -> ()) = transmute(native_code.get_pointer());
[INFO] [stdout] 39 +         let native_proc: extern "sysv64" fn(usize) -> () = transmute(native_code.get_pointer());
[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; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `bf`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name bf src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=874ab07321282676 -L dependency=/opt/rustwide/target/debug/deps --extern clap=/opt/rustwide/target/debug/deps/libclap-a31ee29c5fbe25f2.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-01c7619b48a14d65.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "17da7c20b730b463429174ae7cd7f47b72f8023f069019db53f6dde30e3d3488", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17da7c20b730b463429174ae7cd7f47b72f8023f069019db53f6dde30e3d3488", kill_on_drop: false }`
[INFO] [stdout] 17da7c20b730b463429174ae7cd7f47b72f8023f069019db53f6dde30e3d3488