[INFO] cloning repository https://github.com/fimmind/dotmake_rewind
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fimmind/dotmake_rewind" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffimmind%2Fdotmake_rewind", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffimmind%2Fdotmake_rewind'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bafc9e7805bee9aaa27852fd4a74d0e7416166c6
[INFO] documenting fimmind/dotmake_rewind 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%2Ffimmind%2Fdotmake_rewind" "/workspace/builds/worker-21/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-21/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fimmind/dotmake_rewind 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/fimmind/dotmake_rewind
[INFO] finished tweaking git repo https://github.com/fimmind/dotmake_rewind
[INFO] tweaked toml for git repo https://github.com/fimmind/dotmake_rewind written to /workspace/builds/worker-21/source/Cargo.toml
[INFO] crate git repo https://github.com/fimmind/dotmake_rewind already has a lockfile, it will not be regenerated
[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 textwrap v0.13.2
[INFO] [stderr]   Downloaded smawk v0.3.0
[INFO] [stderr]   Downloaded serde_yaml v0.8.15
[INFO] [stderr]   Downloaded dialoguer v0.6.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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] f38e67b757f1818a55cc66117c4036abca6dfe23285594d973d39491a0604d22
[INFO] running `Command { std: "docker" "start" "-a" "f38e67b757f1818a55cc66117c4036abca6dfe23285594d973d39491a0604d22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f38e67b757f1818a55cc66117c4036abca6dfe23285594d973d39491a0604d22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f38e67b757f1818a55cc66117c4036abca6dfe23285594d973d39491a0604d22", kill_on_drop: false }`
[INFO] [stdout] f38e67b757f1818a55cc66117c4036abca6dfe23285594d973d39491a0604d22
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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] dd73cde797ef72d88a4975d3dc5c0d6a355dda86181cbc34ea6a934527dd548c
[INFO] running `Command { std: "docker" "start" "-a" "dd73cde797ef72d88a4975d3dc5c0d6a355dda86181cbc34ea6a934527dd548c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]    Compiling syn v1.0.58
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking smawk v0.3.0
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking dtoa v0.4.7
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking thread_local v1.1.2
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking itertools v0.10.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking textwrap v0.13.2
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking terminal_size v0.1.15
[INFO] [stderr]     Checking termios v0.3.3
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking shellexpand v2.1.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking console v0.11.3
[INFO] [stderr]     Checking dialoguer v0.6.2
[INFO] [stderr]     Checking serde_yaml v0.8.15
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[INFO] [stderr]     Checking thiserror v1.0.23
[INFO] [stderr]     Checking structopt v0.3.21
[INFO] [stderr]  Documenting dotmake 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:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | #![feature(type_alias_impl_trait)]
[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 `dotmake`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name dotmake src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=f93d1bac120b02c1 -L dependency=/opt/rustwide/target/debug/deps --extern colored=/opt/rustwide/target/debug/deps/libcolored-a49cde3f36658d88.rmeta --extern dialoguer=/opt/rustwide/target/debug/deps/libdialoguer-400e3c467a108359.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-6afed964e725cfad.rmeta --extern maplit=/opt/rustwide/target/debug/deps/libmaplit-a26423216ebb27ff.rmeta --extern once_cell=/opt/rustwide/target/debug/deps/libonce_cell-d2779799ff5b840e.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-c348cfd219ed04b8.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-00ff9e4afb47bf38.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-4a299adef52091d3.so --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-2247f4c921b00612.rmeta --extern serde_yaml=/opt/rustwide/target/debug/deps/libserde_yaml-9e3e7dba54dbb880.rmeta --extern shellexpand=/opt/rustwide/target/debug/deps/libshellexpand-5d4935950e141a88.rmeta --extern structopt=/opt/rustwide/target/debug/deps/libstructopt-6f7dc31c57d06cc2.rmeta --extern tempdir=/opt/rustwide/target/debug/deps/libtempdir-22021e10e41e26c4.rmeta --extern textwrap=/opt/rustwide/target/debug/deps/libtextwrap-3920f82562629efa.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-56b2d08f2c8a6b6f.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "dd73cde797ef72d88a4975d3dc5c0d6a355dda86181cbc34ea6a934527dd548c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd73cde797ef72d88a4975d3dc5c0d6a355dda86181cbc34ea6a934527dd548c", kill_on_drop: false }`
[INFO] [stdout] dd73cde797ef72d88a4975d3dc5c0d6a355dda86181cbc34ea6a934527dd548c