[INFO] cloning repository https://github.com/tonyb983/term-println
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tonyb983/term-println" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftonyb983%2Fterm-println", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftonyb983%2Fterm-println'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 486f87322d95b2bf34a79bf445fa4dbfe902def3
[INFO] documenting tonyb983/term-println 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%2Ftonyb983%2Fterm-println" "/workspace/builds/worker-20/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-20/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tonyb983/term-println 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/tonyb983/term-println
[INFO] finished tweaking git repo https://github.com/tonyb983/term-println
[INFO] tweaked toml for git repo https://github.com/tonyb983/term-println written to /workspace/builds/worker-20/source/Cargo.toml
[INFO] crate git repo https://github.com/tonyb983/term-println 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-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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] [stdout] f7211cb0f57030cda6da37f6cd2e6c76e978f48c3fb6e1e835414350bd29d6d8
[INFO] running `Command { std: "docker" "start" "-a" "f7211cb0f57030cda6da37f6cd2e6c76e978f48c3fb6e1e835414350bd29d6d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f7211cb0f57030cda6da37f6cd2e6c76e978f48c3fb6e1e835414350bd29d6d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7211cb0f57030cda6da37f6cd2e6c76e978f48c3fb6e1e835414350bd29d6d8", kill_on_drop: false }`
[INFO] [stdout] f7211cb0f57030cda6da37f6cd2e6c76e978f48c3fb6e1e835414350bd29d6d8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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] [stdout] 76495c0c0fe590c6cbbd2f78d70df688a543360b1e8be1b35bfe834735857f5b
[INFO] running `Command { std: "docker" "start" "-a" "76495c0c0fe590c6cbbd2f78d70df688a543360b1e8be1b35bfe834735857f5b", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling libc v0.2.122
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking ansirs v0.1.3 (https://github.com/tonyb983/ansirs#bab04819)
[INFO] [stderr]     Checking once_cell v1.10.0
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking terminal_size v0.1.17
[INFO] [stderr]     Checking regex v1.5.5
[INFO] [stderr]  Documenting fmt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(round_char_boundary)]
[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 `fmt`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type bin --crate-name fmt src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=3b0a42211ee49148 -L dependency=/opt/rustwide/target/debug/deps --extern ansirs=/opt/rustwide/target/debug/deps/libansirs-f55235b62a9f382d.rmeta --extern once_cell=/opt/rustwide/target/debug/deps/libonce_cell-d5c1de0f4ebdfb66.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-53c901764b5c5d30.rmeta --extern terminal_size=/opt/rustwide/target/debug/deps/libterminal_size-a6ecc74b67f10e60.rmeta --extern unicode_width=/opt/rustwide/target/debug/deps/libunicode_width-f4a740a6865dcbbd.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "76495c0c0fe590c6cbbd2f78d70df688a543360b1e8be1b35bfe834735857f5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76495c0c0fe590c6cbbd2f78d70df688a543360b1e8be1b35bfe834735857f5b", kill_on_drop: false }`
[INFO] [stdout] 76495c0c0fe590c6cbbd2f78d70df688a543360b1e8be1b35bfe834735857f5b