[INFO] cloning repository https://github.com/compiler-errors/adelaide
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/compiler-errors/adelaide" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcompiler-errors%2Fadelaide", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcompiler-errors%2Fadelaide'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 42d00fcf7d638d018593aa60456129bb51aea53a
[INFO] documenting compiler-errors/adelaide against 1.54.0 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcompiler-errors%2Fadelaide" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/compiler-errors/adelaide on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/compiler-errors/adelaide
[INFO] finished tweaking git repo https://github.com/compiler-errors/adelaide
[INFO] tweaked toml for git repo https://github.com/compiler-errors/adelaide written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/compiler-errors/adelaide already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a3e236a1e4686324995c690b4a52bb889c2c7e6ea75ffd6567cd4c0f552b681b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a3e236a1e4686324995c690b4a52bb889c2c7e6ea75ffd6567cd4c0f552b681b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a3e236a1e4686324995c690b4a52bb889c2c7e6ea75ffd6567cd4c0f552b681b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3e236a1e4686324995c690b4a52bb889c2c7e6ea75ffd6567cd4c0f552b681b", kill_on_drop: false }`
[INFO] [stdout] a3e236a1e4686324995c690b4a52bb889c2c7e6ea75ffd6567cd4c0f552b681b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] df3b7ce6e8c01b48e9950110cff78614556a0e043721ae67ef1d698f60a3cb07
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "df3b7ce6e8c01b48e9950110cff78614556a0e043721ae67ef1d698f60a3cb07", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.55
[INFO] [stderr]    Compiling lalrpop-util v0.18.1
[INFO] [stderr]     Checking bumpalo v3.4.0
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]     Checking codespan-reporting v0.9.5
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]     Checking parking_lot_core v0.8.2
[INFO] [stderr]    Compiling ena v0.13.1
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling term v0.5.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]    Compiling ascii-canvas v2.0.0
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling string_cache_codegen v0.4.4
[INFO] [stderr]    Compiling string_cache v0.7.5
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.2
[INFO] [stderr]    Compiling salsa-macros v0.15.2
[INFO] [stderr]    Compiling calmio_filters v0.1.0
[INFO] [stderr]    Compiling proc v0.1.0 (/opt/rustwide/workdir/proc)
[INFO] [stderr]     Checking calm_io v0.1.1
[INFO] [stderr]     Checking salsa v0.15.2
[INFO] [stderr]     Checking clap v3.0.0-beta.2
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]     Checking docopt v1.1.0
[INFO] [stderr]     Checking lalrpop v0.18.1
[INFO] [stderr]    Compiling adelaide v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting adelaide v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(once_cell)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(option_unwrap_none)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(hash_drain_filter)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(const_btree_new)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(const_mut_refs)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 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 `adelaide`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name adelaide 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 bumpalo=/opt/rustwide/target/debug/deps/libbumpalo-be55784733d67766.rmeta --extern calm_io=/opt/rustwide/target/debug/deps/libcalm_io-7c2139bab40bf555.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-5aa4aa77b32d0aa6.rmeta --extern codespan_reporting=/opt/rustwide/target/debug/deps/libcodespan_reporting-6a5e367f015a0109.rmeta --extern either=/opt/rustwide/target/debug/deps/libeither-c2989fcf2933251d.rmeta --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-09185def66ff6259.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-998e59f7b2e96b83.rmeta --extern lalrpop=/opt/rustwide/target/debug/deps/liblalrpop-6b22136280fecc96.rmeta --extern lalrpop_util=/opt/rustwide/target/debug/deps/liblalrpop_util-deec4994b0949c20.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-acd7d23482fe8b54.rmeta --extern linked_hash_map=/opt/rustwide/target/debug/deps/liblinked_hash_map-795f4d936b621040.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-ad9dab5804e289b3.rmeta --extern maplit=/opt/rustwide/target/debug/deps/libmaplit-edcadb5581f67864.rmeta --extern proc=/opt/rustwide/target/debug/deps/libproc-49205b0411285732.so --extern regex=/opt/rustwide/target/debug/deps/libregex-9e8c984ff6f836bc.rmeta --extern salsa=/opt/rustwide/target/debug/deps/libsalsa-efd667c9ee66c1ff.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "df3b7ce6e8c01b48e9950110cff78614556a0e043721ae67ef1d698f60a3cb07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df3b7ce6e8c01b48e9950110cff78614556a0e043721ae67ef1d698f60a3cb07", kill_on_drop: false }`
[INFO] [stdout] df3b7ce6e8c01b48e9950110cff78614556a0e043721ae67ef1d698f60a3cb07
