[INFO] fetching crate topograph 0.3.1-alpha.1...
[INFO] documenting topograph-0.3.1-alpha.1 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate topograph 0.3.1-alpha.1 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate topograph 0.3.1-alpha.1 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] started tweaking crates.io crate topograph 0.3.1-alpha.1
[INFO] finished tweaking crates.io crate topograph 0.3.1-alpha.1
[INFO] tweaked toml for crates.io crate topograph 0.3.1-alpha.1 written to /workspace/builds/worker-1/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]  Downloading crates ...
[INFO] [stderr]   Downloaded dispose v0.4.0
[INFO] [stderr]   Downloaded dispose-derive v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] f2194472eeed03ab00aedea36c93ea26ac240a22504c8727d915fe7de2fc0926
[INFO] running `Command { std: "docker" "start" "-a" "f2194472eeed03ab00aedea36c93ea26ac240a22504c8727d915fe7de2fc0926", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f2194472eeed03ab00aedea36c93ea26ac240a22504c8727d915fe7de2fc0926", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2194472eeed03ab00aedea36c93ea26ac240a22504c8727d915fe7de2fc0926", kill_on_drop: false }`
[INFO] [stdout] f2194472eeed03ab00aedea36c93ea26ac240a22504c8727d915fe7de2fc0926
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] d2a9bd97fbce6b09d74b6c0a0568ab23529262273c4a603e4b611600dd8ef937
[INFO] running `Command { std: "docker" "start" "-a" "d2a9bd97fbce6b09d74b6c0a0568ab23529262273c4a603e4b611600dd8ef937", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling crossbeam-utils v0.8.8
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling crossbeam-queue v0.3.5
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.8
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]     Checking crossbeam-channel v0.5.4
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking parking_lot_core v0.8.5
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking crossbeam v0.8.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]    Compiling dispose-derive v0.3.0
[INFO] [stderr]     Checking thiserror v1.0.31
[INFO] [stderr]     Checking dispose v0.4.0
[INFO] [stderr]  Documenting topograph v0.3.1-alpha.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | #![feature(generic_associated_types)]
[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 `topograph`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type lib --crate-name topograph src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=f4a9d23803b2a14f -L dependency=/opt/rustwide/target/debug/deps --extern crossbeam=/opt/rustwide/target/debug/deps/libcrossbeam-460be0aec5eda241.rmeta --extern dispose=/opt/rustwide/target/debug/deps/libdispose-19ac07fa43e1d977.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-11fcf639aa746c8b.rmeta --extern num_cpus=/opt/rustwide/target/debug/deps/libnum_cpus-b6c37aa42dd025e0.rmeta --extern parking_lot=/opt/rustwide/target/debug/deps/libparking_lot-91887e4bb2769102.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-1a841a01237ad150.rmeta --cap-lints=warn --crate-version 0.3.1-alpha.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "d2a9bd97fbce6b09d74b6c0a0568ab23529262273c4a603e4b611600dd8ef937", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2a9bd97fbce6b09d74b6c0a0568ab23529262273c4a603e4b611600dd8ef937", kill_on_drop: false }`
[INFO] [stdout] d2a9bd97fbce6b09d74b6c0a0568ab23529262273c4a603e4b611600dd8ef937