[INFO] fetching crate cargo-n64 0.1.2...
[INFO] documenting cargo-n64-0.1.2 against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] extracting crate cargo-n64 0.1.2 into /workspace/builds/worker-79/source
[INFO] validating manifest of crates.io crate cargo-n64 0.1.2 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cargo-n64 0.1.2
[INFO] finished tweaking crates.io crate cargo-n64 0.1.2
[INFO] tweaked toml for crates.io crate cargo-n64 0.1.2 written to /workspace/builds/worker-79/source/Cargo.toml
[INFO] crate crates.io crate cargo-n64 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "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-79/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-79/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" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1c84941d3df7e74f48df5b33a8a92afac6c2cc175106a929a9ca6d4cc42950ed
[INFO] running `Command { std: "docker" "start" "-a" "1c84941d3df7e74f48df5b33a8a92afac6c2cc175106a929a9ca6d4cc42950ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1c84941d3df7e74f48df5b33a8a92afac6c2cc175106a929a9ca6d4cc42950ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c84941d3df7e74f48df5b33a8a92afac6c2cc175106a929a9ca6d4cc42950ed", kill_on_drop: false }`
[INFO] [stdout] 1c84941d3df7e74f48df5b33a8a92afac6c2cc175106a929a9ca6d4cc42950ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-79/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-79/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" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e18844ace088689d69cbb28a2a3fc8aa4e13abf2876283a5cf5ca20e1a865c9f
[INFO] running `Command { std: "docker" "start" "-a" "e18844ace088689d69cbb28a2a3fc8aa4e13abf2876283a5cf5ca20e1a865c9f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking plain v0.2.3
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking colored v1.9.2
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]     Checking backtrace v0.3.44
[INFO] [stderr]     Checking fatfs v0.3.3
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling scroll_derive v0.10.1
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]     Checking scroll v0.10.1
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr]     Checking goblin v0.2.0
[INFO] [stderr]     Checking serde_json v1.0.48
[INFO] [stderr]  Documenting cargo-n64 v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(crate_visibility_modifier)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(try_trait)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(wrapping_int_impl)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 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 `cargo-n64`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name cargo_n64 src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern byteorder=/opt/rustwide/target/debug/deps/libbyteorder-c605bb9f4f40a95b.rmeta --extern colored=/opt/rustwide/target/debug/deps/libcolored-8a6f5cee229ed7e5.rmeta --extern crc32fast=/opt/rustwide/target/debug/deps/libcrc32fast-f167f3d8884df573.rmeta --extern failure=/opt/rustwide/target/debug/deps/libfailure-0353afb0a1b2f46d.rmeta --extern failure_derive=/opt/rustwide/target/debug/deps/libfailure_derive-ed42bcab975d78ea.so --extern fatfs=/opt/rustwide/target/debug/deps/libfatfs-8eb147ceb61b52f1.rmeta --extern goblin=/opt/rustwide/target/debug/deps/libgoblin-ca0c325bbb3470a1.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-6973353daf880242.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-6891e8930c0b5d3e.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-7ad467bbb91f1c47.rmeta --cap-lints=warn --crate-version 0.1.2` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "e18844ace088689d69cbb28a2a3fc8aa4e13abf2876283a5cf5ca20e1a865c9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e18844ace088689d69cbb28a2a3fc8aa4e13abf2876283a5cf5ca20e1a865c9f", kill_on_drop: false }`
[INFO] [stdout] e18844ace088689d69cbb28a2a3fc8aa4e13abf2876283a5cf5ca20e1a865c9f
