[INFO] cloning repository https://github.com/tiannian/gca-rt
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tiannian/gca-rt" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftiannian%2Fgca-rt", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftiannian%2Fgca-rt'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0184235956689e920228229a99686dd469c4af1b
[INFO] documenting tiannian/gca-rt against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftiannian%2Fgca-rt" "/workspace/builds/worker-27/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-27/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tiannian/gca-rt 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 git repo https://github.com/tiannian/gca-rt
[INFO] finished tweaking git repo https://github.com/tiannian/gca-rt
[INFO] tweaked toml for git repo https://github.com/tiannian/gca-rt written to /workspace/builds/worker-27/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] [stderr]     Blocking waiting for file lock on package cache
[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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded primitive-types v0.11.1
[INFO] [stderr]   Downloaded pwasm-utils v0.19.0
[INFO] [stderr]   Downloaded wasmi v0.11.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] 7e7ac0e7e43d95dde53b49c33c4c168d75a918eb8922c9b72ede78bc5d6772c2
[INFO] running `Command { std: "docker" "start" "-a" "7e7ac0e7e43d95dde53b49c33c4c168d75a918eb8922c9b72ede78bc5d6772c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7e7ac0e7e43d95dde53b49c33c4c168d75a918eb8922c9b72ede78bc5d6772c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e7ac0e7e43d95dde53b49c33c4c168d75a918eb8922c9b72ede78bc5d6772c2", kill_on_drop: false }`
[INFO] [stdout] 7e7ac0e7e43d95dde53b49c33c4c168d75a918eb8922c9b72ede78bc5d6772c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] 35fcfef871a17c252826847ce8e9f9413c11b971b3e2f8dc65c732af3a61f41f
[INFO] running `Command { std: "docker" "start" "-a" "35fcfef871a17c252826847ce8e9f9413c11b971b3e2f8dc65c732af3a61f41f", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking parity-wasm v0.42.2
[INFO] [stderr]    Compiling libm v0.2.2
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking cty v0.2.2
[INFO] [stderr]     Checking memory_units v0.3.0
[INFO] [stderr]     Checking downcast-rs v1.2.0
[INFO] [stderr]  Documenting gca-rt-receipt-data v0.1.0 (/opt/rustwide/workdir/gca-rt/receipt-data)
[INFO] [stderr]  Documenting gca-rt-event v0.1.0 (/opt/rustwide/workdir/gca-rt/event)
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking fixed-hash v0.7.0
[INFO] [stderr]  Documenting gca-rt-panic-log v0.1.0 (/opt/rustwide/workdir/gca-rt/panic-log)
[INFO] [stderr]  Documenting gca-rt-log v0.1.0 (/opt/rustwide/workdir/gca-rt/log)
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]     Checking uint v0.9.3
[INFO] [stderr]     Checking cstr_core v0.2.5
[INFO] [stderr]  Documenting gca-rt-env v0.1.0 (/opt/rustwide/workdir/gca-rt/env)
[INFO] [stderr]     Checking wasmi-validation v0.4.1
[INFO] [stderr]     Checking pwasm-utils v0.19.0
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> gca-rt/env/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(alloc_error_handler, core_intrinsics)]
[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 `gca-rt-env`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type lib --crate-name gca_rt_env gca-rt/env/src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="bump"' --cfg 'feature="default"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=210ec36773e67f1c -L dependency=/opt/rustwide/target/debug/deps --extern cstr_core=/opt/rustwide/target/debug/deps/libcstr_core-fffb98d6b20cf113.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "35fcfef871a17c252826847ce8e9f9413c11b971b3e2f8dc65c732af3a61f41f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35fcfef871a17c252826847ce8e9f9413c11b971b3e2f8dc65c732af3a61f41f", kill_on_drop: false }`
[INFO] [stdout] 35fcfef871a17c252826847ce8e9f9413c11b971b3e2f8dc65c732af3a61f41f