[INFO] cloning repository https://github.com/carbotaniuman/vision_traits
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/carbotaniuman/vision_traits" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcarbotaniuman%2Fvision_traits", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcarbotaniuman%2Fvision_traits'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 09ead96430309bca3f9ba267818d644d5a53f7c1
[INFO] documenting carbotaniuman/vision_traits 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%2Fcarbotaniuman%2Fvision_traits" "/workspace/builds/worker-40/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-40/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/carbotaniuman/vision_traits 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/carbotaniuman/vision_traits
[INFO] finished tweaking git repo https://github.com/carbotaniuman/vision_traits
[INFO] tweaked toml for git repo https://github.com/carbotaniuman/vision_traits written to /workspace/builds/worker-40/source/Cargo.toml
[INFO] crate git repo https://github.com/carbotaniuman/vision_traits 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-40/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/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] 699d770fac02c21e7db3448dec980cc53047336469aed013d1d1184ddf09df26
[INFO] running `Command { std: "docker" "start" "-a" "699d770fac02c21e7db3448dec980cc53047336469aed013d1d1184ddf09df26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "699d770fac02c21e7db3448dec980cc53047336469aed013d1d1184ddf09df26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "699d770fac02c21e7db3448dec980cc53047336469aed013d1d1184ddf09df26", kill_on_drop: false }`
[INFO] [stdout] 699d770fac02c21e7db3448dec980cc53047336469aed013d1d1184ddf09df26
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/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] 32730698c58dca9a6b2ee4fabcf84d4057494503ee4925a34aa9870ab6d11dcb
[INFO] running `Command { std: "docker" "start" "-a" "32730698c58dca9a6b2ee4fabcf84d4057494503ee4925a34aa9870ab6d11dcb", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling syn v1.0.30
[INFO] [stderr]    Compiling proc-macro-hack v0.5.16
[INFO] [stderr]     Checking json v0.12.4
[INFO] [stderr]    Compiling quote v1.0.6
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling paste-impl v0.1.16
[INFO] [stderr]    Compiling vision_traits_derive v0.1.0 (/opt/rustwide/workdir/vision_traits_derive)
[INFO] [stderr]     Checking paste v0.1.16
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]  Documenting vision_traits v0.1.0 (/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(generic_associated_types)]
[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(const_generics)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 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 `vision_traits`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name vision_traits 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 json=/opt/rustwide/target/debug/deps/libjson-7c242d554c08edd0.rmeta --extern paste=/opt/rustwide/target/debug/deps/libpaste-9d1c511e21bc1c1f.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-98df1c857239b1e9.rmeta --extern vision_traits_derive=/opt/rustwide/target/debug/deps/libvision_traits_derive-3b99e45167e22e68.so --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "32730698c58dca9a6b2ee4fabcf84d4057494503ee4925a34aa9870ab6d11dcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32730698c58dca9a6b2ee4fabcf84d4057494503ee4925a34aa9870ab6d11dcb", kill_on_drop: false }`
[INFO] [stdout] 32730698c58dca9a6b2ee4fabcf84d4057494503ee4925a34aa9870ab6d11dcb
