[INFO] cloning repository https://github.com/cecton/vgmplay-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cecton/vgmplay-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcecton%2Fvgmplay-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcecton%2Fvgmplay-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 851bc1f4ebb9ca67cafeabd669af218c78ba6aff
[INFO] documenting cecton/vgmplay-rust against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcecton%2Fvgmplay-rust" "/workspace/builds/worker-15/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-15/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cecton/vgmplay-rust 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 git repo https://github.com/cecton/vgmplay-rust
[INFO] finished tweaking git repo https://github.com/cecton/vgmplay-rust
[INFO] tweaked toml for git repo https://github.com/cecton/vgmplay-rust written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] crate git repo https://github.com/cecton/vgmplay-rust 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]  Downloading crates ...
[INFO] [stderr]   Downloaded serde v1.0.55
[INFO] [stderr]   Downloaded bincode v1.0.0
[INFO] [stderr]   Downloaded syn v0.13.10
[INFO] [stderr]   Downloaded serde_derive v1.0.55
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] 3db43edf0ee45cbe1bf78e903c713c54f54b67b76d8bae870293079e7829fd32
[INFO] running `Command { std: "docker" "start" "-a" "3db43edf0ee45cbe1bf78e903c713c54f54b67b76d8bae870293079e7829fd32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3db43edf0ee45cbe1bf78e903c713c54f54b67b76d8bae870293079e7829fd32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3db43edf0ee45cbe1bf78e903c713c54f54b67b76d8bae870293079e7829fd32", kill_on_drop: false }`
[INFO] [stdout] 3db43edf0ee45cbe1bf78e903c713c54f54b67b76d8bae870293079e7829fd32
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] 4dbef0b7678a43ca5354315535feb2c65d1583bb5d0286ca6d56be771ad038c2
[INFO] running `Command { std: "docker" "start" "-a" "4dbef0b7678a43ca5354315535feb2c65d1583bb5d0286ca6d56be771ad038c2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking byteorder v1.2.3
[INFO] [stderr]     Checking serde v1.0.55
[INFO] [stderr]    Compiling syn v0.13.10
[INFO] [stderr]    Compiling serde_derive v1.0.55
[INFO] [stderr]     Checking bincode v1.0.0
[INFO] [stderr]  Documenting vgmplay-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(exclusive_range_pattern)]
[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 `vgmplay-rust`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name vgmplay_rust 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 bincode=/opt/rustwide/target/debug/deps/libbincode-e6ad85d476a67f3a.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-703768465a6b0d00.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-2b706f61d32ed95e.so --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "4dbef0b7678a43ca5354315535feb2c65d1583bb5d0286ca6d56be771ad038c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4dbef0b7678a43ca5354315535feb2c65d1583bb5d0286ca6d56be771ad038c2", kill_on_drop: false }`
[INFO] [stdout] 4dbef0b7678a43ca5354315535feb2c65d1583bb5d0286ca6d56be771ad038c2
