[INFO] fetching crate mmime 0.1.2...
[INFO] documenting mmime-0.1.2 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate mmime 0.1.2 into /workspace/builds/worker-33/source
[INFO] validating manifest of crates.io crate mmime 0.1.2 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] removed /workspace/builds/worker-33/source/rust-toolchain
[INFO] started tweaking crates.io crate mmime 0.1.2
[INFO] finished tweaking crates.io crate mmime 0.1.2
[INFO] tweaked toml for crates.io crate mmime 0.1.2 written to /workspace/builds/worker-33/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded charset v0.1.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/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] 7ea2a4795d859214b618ad57756f2e84533ceab0ecb88c76ffcde10fb776fe97
[INFO] running `Command { std: "docker" "start" "-a" "7ea2a4795d859214b618ad57756f2e84533ceab0ecb88c76ffcde10fb776fe97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7ea2a4795d859214b618ad57756f2e84533ceab0ecb88c76ffcde10fb776fe97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ea2a4795d859214b618ad57756f2e84533ceab0ecb88c76ffcde10fb776fe97", kill_on_drop: false }`
[INFO] [stdout] 7ea2a4795d859214b618ad57756f2e84533ceab0ecb88c76ffcde10fb776fe97
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/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] 6b17d914c3f6a084fc1d8b88eb6c6a1dd3e2acdb835c0cceb3dae1fbba1ecb74
[INFO] running `Command { std: "docker" "start" "-a" "6b17d914c3f6a084fc1d8b88eb6c6a1dd3e2acdb835c0cceb3dae1fbba1ecb74", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling encoding_rs v0.8.31
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking hex v0.3.2
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking charset v0.1.3
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]  Documenting mmime v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> src/lib.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | #![feature(const_raw_ptr_to_usize_cast)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]    |
[INFO] [stdout]    = note: at compile-time, pointers do not have an integer value, so these casts cannot be properly supported
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #![feature(extern_types)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | #![feature(const_raw_ptr_to_usize_cast)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | #![feature(ptr_wrapping_offset_from)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `mmime`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name mmime src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=c85c7577aaea0503 -L dependency=/opt/rustwide/target/debug/deps --extern charset=/opt/rustwide/target/debug/deps/libcharset-2571a5b55613e22c.rmeta --extern chrono=/opt/rustwide/target/debug/deps/libchrono-5fc94ef193f02a52.rmeta --extern hex=/opt/rustwide/target/debug/deps/libhex-6675fd61bc3ec9fe.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-1479f2b7adeaa2b6.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-4e90763dd2291129.rmeta --extern memmap=/opt/rustwide/target/debug/deps/libmemmap-812f204b849eaf56.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-6d8e3b6d7ebfb3eb.rmeta --cap-lints=warn --crate-version 0.1.2` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "6b17d914c3f6a084fc1d8b88eb6c6a1dd3e2acdb835c0cceb3dae1fbba1ecb74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b17d914c3f6a084fc1d8b88eb6c6a1dd3e2acdb835c0cceb3dae1fbba1ecb74", kill_on_drop: false }`
[INFO] [stdout] 6b17d914c3f6a084fc1d8b88eb6c6a1dd3e2acdb835c0cceb3dae1fbba1ecb74