[INFO] cloning repository https://github.com/petrctl/terman
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/petrctl/terman" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpetrctl%2Fterman", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpetrctl%2Fterman'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b4688301ead66a7ab9b245130f69a7e457de4f24
[INFO] documenting petrctl/terman against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpetrctl%2Fterman" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/petrctl/terman on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/petrctl/terman
[INFO] finished tweaking git repo https://github.com/petrctl/terman
[INFO] tweaked toml for git repo https://github.com/petrctl/terman written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/petrctl/terman already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 973eaa815daf0b7bb91c613376c9f3a953e83c241638cac405b1925790309bb7
[INFO] running `Command { std: "docker" "start" "-a" "973eaa815daf0b7bb91c613376c9f3a953e83c241638cac405b1925790309bb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "973eaa815daf0b7bb91c613376c9f3a953e83c241638cac405b1925790309bb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "973eaa815daf0b7bb91c613376c9f3a953e83c241638cac405b1925790309bb7", kill_on_drop: false }`
[INFO] [stdout] 973eaa815daf0b7bb91c613376c9f3a953e83c241638cac405b1925790309bb7
[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" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7c47739307e1c6fb9d92c6accf15fb68a15810b69143855414d308c997752fcc
[INFO] running `Command { std: "docker" "start" "-a" "7c47739307e1c6fb9d92c6accf15fb68a15810b69143855414d308c997752fcc", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking futures-core v0.3.5
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]     Checking futures-sink v0.3.5
[INFO] [stderr]     Checking once_cell v1.4.1
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]     Checking futures-io v0.3.5
[INFO] [stderr]    Compiling anyhow v1.0.32
[INFO] [stderr]     Checking arc-swap v0.4.7
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]     Checking flagset v0.3.0
[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]    Compiling vte_generate_state_changes v0.1.1
[INFO] [stderr]     Checking vte v0.8.0
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking errno v0.1.8
[INFO] [stderr]     Checking signal-hook-registry v1.2.1
[INFO] [stderr]     Checking thread-id v3.3.0
[INFO] [stderr]     Checking termios v0.2.2
[INFO] [stderr]     Checking nix v0.18.0
[INFO] [stderr]     Checking simple-logging v2.0.2
[INFO] [stderr]     Checking pty v0.2.2
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking pin-project v0.4.23
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]  Documenting terman 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:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(slice_index_methods)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `terman`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name terman src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=1f435b48f96405e1 -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-c1491281f5830993.rmeta --extern base64=/opt/rustwide/target/debug/deps/libbase64-c80ebed8e9c01175.rmeta --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-de63b5279be8a244.rmeta --extern bytes=/opt/rustwide/target/debug/deps/libbytes-db91dbb0a77bede6.rmeta --extern flagset=/opt/rustwide/target/debug/deps/libflagset-edd396a28abd0c2b.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-f93b203523170fec.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-0fb50dbe0cddd72e.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-38a9f1951c2486a4.rmeta --extern mio=/opt/rustwide/target/debug/deps/libmio-94dfe89f381bc584.rmeta --extern nix=/opt/rustwide/target/debug/deps/libnix-d599ada765fecb1d.rmeta --extern pty=/opt/rustwide/target/debug/deps/libpty-fd8893483885917b.rmeta --extern simple_logging=/opt/rustwide/target/debug/deps/libsimple_logging-2845250e08b8b19c.rmeta --extern termios=/opt/rustwide/target/debug/deps/libtermios-7d6c4268e6a48203.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-1ea574f96860e073.rmeta --extern vte=/opt/rustwide/target/debug/deps/libvte-f1e9db5134c1b23f.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "7c47739307e1c6fb9d92c6accf15fb68a15810b69143855414d308c997752fcc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c47739307e1c6fb9d92c6accf15fb68a15810b69143855414d308c997752fcc", kill_on_drop: false }`
[INFO] [stdout] 7c47739307e1c6fb9d92c6accf15fb68a15810b69143855414d308c997752fcc