[INFO] cloning repository https://github.com/Chriscbr/rustgen_test
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Chriscbr/rustgen_test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChriscbr%2Frustgen_test", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChriscbr%2Frustgen_test'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b2b4ffc1d576fd60c253a59c4f082b76582667d8
[INFO] documenting Chriscbr/rustgen_test against 1.91.0 for beta-1.92-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChriscbr%2Frustgen_test" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Chriscbr/rustgen_test
[INFO] finished tweaking git repo https://github.com/Chriscbr/rustgen_test
[INFO] tweaked toml for git repo https://github.com/Chriscbr/rustgen_test written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Chriscbr/rustgen_test on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Chriscbr/rustgen_test already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded quote v0.6.11
[INFO] [stderr]   Downloaded wincolor v1.0.1
[INFO] [stderr]   Downloaded proc-macro2 v0.4.27
[INFO] [stderr]   Downloaded redox_syscall v0.1.51
[INFO] [stderr]   Downloaded termcolor v1.0.4
[INFO] [stderr]   Downloaded ena v0.11.0
[INFO] [stderr]   Downloaded either v1.5.1
[INFO] [stderr]   Downloaded libc v0.2.50
[INFO] [stderr]   Downloaded syn v0.15.29
[INFO] [stderr]   Downloaded crossbeam-epoch v0.3.1
[INFO] [stderr]   Downloaded cfg-if v0.1.7
[INFO] [stderr]   Downloaded crossbeam-utils v0.2.2
[INFO] [stderr]   Downloaded crossbeam-deque v0.2.0
[INFO] [stderr]   Downloaded rustc-ap-graphviz v401.0.0
[INFO] [stderr]   Downloaded rustc-ap-syntax v401.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_errors v401.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_target v401.0.0
[INFO] [stderr]   Downloaded rustc-ap-arena v401.0.0
[INFO] [stderr]   Downloaded rustc-rayon-core v0.1.2
[INFO] [stderr]   Downloaded rustc-ap-rustc_cratesio_shim v401.0.0
[INFO] [stderr]   Downloaded rustc-ap-serialize v401.0.0
[INFO] [stderr]   Downloaded rustc-ap-syntax_pos v401.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_data_structures v401.0.0
[INFO] [stderr]   Downloaded jobserver v0.1.12
[INFO] [stderr]   Downloaded rustc-rayon v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c81caa0e212a0ed52f06f366c1dae0e55efef04ed1af72dd40ea17284ad0638c
[INFO] running `Command { std: "docker" "start" "-a" "c81caa0e212a0ed52f06f366c1dae0e55efef04ed1af72dd40ea17284ad0638c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c81caa0e212a0ed52f06f366c1dae0e55efef04ed1af72dd40ea17284ad0638c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c81caa0e212a0ed52f06f366c1dae0e55efef04ed1af72dd40ea17284ad0638c", kill_on_drop: false }`
[INFO] [stdout] c81caa0e212a0ed52f06f366c1dae0e55efef04ed1af72dd40ea17284ad0638c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTFLAGS=--cap-lints=warn" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 422998fb76567044e8665b8a61a8ca23cbc26b74b66530482e0d03cab9bdaf9c
[INFO] running `Command { std: "docker" "start" "-a" "422998fb76567044e8665b8a61a8ca23cbc26b74b66530482e0d03cab9bdaf9c", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]    Compiling libc v0.2.50
[INFO] [stderr]     Checking cfg-if v0.1.7
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking rand_jitter v0.1.3
[INFO] [stderr]     Checking smallvec v0.6.9
[INFO] [stderr]    Compiling rustc-rayon-core v0.1.2
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/smallvec-0.6.9/lib.rs:33:40
[INFO] [stdout]    |
[INFO] [stdout] 33 | #![cfg_attr(feature = "union", feature(untagged_unions))]
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]    |
[INFO] [stdout]    = note: removed in 1.64.0; see <https://github.com/rust-lang/rust/pull/97995> for more information
[INFO] [stdout]    = note: unions with `Copy` and `ManuallyDrop` fields are stable; there is no intent to stabilize more
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/smallvec-0.6.9/lib.rs:33:32
[INFO] [stdout]    |
[INFO] [stdout] 33 | #![cfg_attr(feature = "union", feature(untagged_unions))]
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/smallvec-0.6.9/lib.rs:35:37
[INFO] [stdout]    |
[INFO] [stdout] 35 | #![cfg_attr(feature = "may_dangle", feature(dropck_eyepatch))]
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[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 compile `smallvec` (lib) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "422998fb76567044e8665b8a61a8ca23cbc26b74b66530482e0d03cab9bdaf9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "422998fb76567044e8665b8a61a8ca23cbc26b74b66530482e0d03cab9bdaf9c", kill_on_drop: false }`
[INFO] [stdout] 422998fb76567044e8665b8a61a8ca23cbc26b74b66530482e0d03cab9bdaf9c
