[INFO] fetching crate c_str 1.0.8...
[INFO] documenting c_str-1.0.8 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate c_str 1.0.8 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate c_str 1.0.8 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate c_str 1.0.8
[INFO] finished tweaking crates.io crate c_str 1.0.8
[INFO] tweaked toml for crates.io crate c_str 1.0.8 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: path `/workspace/builds/worker-8/source/src/c_str.rs` was erroneously implicitly accepted for library `c_str`,
[INFO] [stderr] please rename the file to `src/lib.rs` or set lib.path in Cargo.toml
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3e951a3fc05ca648b86831209bf6c24ac530efce5451c6faa9a1368fb42a677b
[INFO] running `Command { std: "docker" "start" "-a" "3e951a3fc05ca648b86831209bf6c24ac530efce5451c6faa9a1368fb42a677b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3e951a3fc05ca648b86831209bf6c24ac530efce5451c6faa9a1368fb42a677b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e951a3fc05ca648b86831209bf6c24ac530efce5451c6faa9a1368fb42a677b", kill_on_drop: false }`
[INFO] [stdout] 3e951a3fc05ca648b86831209bf6c24ac530efce5451c6faa9a1368fb42a677b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6314144d4bd57c0e02fde3ec9ea012cfd275cf16192028c1d21af748d9708326
[INFO] running `Command { std: "docker" "start" "-a" "6314144d4bd57c0e02fde3ec9ea012cfd275cf16192028c1d21af748d9708326", kill_on_drop: false }`
[INFO] [stderr] warning: path `/opt/rustwide/workdir/src/c_str.rs` was erroneously implicitly accepted for library `c_str`,
[INFO] [stderr] please rename the file to `src/lib.rs` or set lib.path in Cargo.toml
[INFO] [stderr]  Documenting c_str v1.0.8 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/c_str.rs:43:1
[INFO] [stdout]    |
[INFO] [stdout] 43 | #![feature(core, collections, libc, convert)]
[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 `c_str`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type dylib --crate-type rlib --crate-name c_str src/c_str.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --cap-lints=warn --crate-version 1.0.8` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "6314144d4bd57c0e02fde3ec9ea012cfd275cf16192028c1d21af748d9708326", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6314144d4bd57c0e02fde3ec9ea012cfd275cf16192028c1d21af748d9708326", kill_on_drop: false }`
[INFO] [stdout] 6314144d4bd57c0e02fde3ec9ea012cfd275cf16192028c1d21af748d9708326
