[INFO] cloning repository https://github.com/jD91mZM2/generic-turing-machine
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jD91mZM2/generic-turing-machine" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FjD91mZM2%2Fgeneric-turing-machine", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FjD91mZM2%2Fgeneric-turing-machine'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ad9ac7b01821364c0b3be26b5393463fff312f63
[INFO] documenting jD91mZM2/generic-turing-machine against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FjD91mZM2%2Fgeneric-turing-machine" "/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/jD91mZM2/generic-turing-machine on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-1/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/jD91mZM2/generic-turing-machine
[INFO] finished tweaking git repo https://github.com/jD91mZM2/generic-turing-machine
[INFO] tweaked toml for git repo https://github.com/jD91mZM2/generic-turing-machine written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/jD91mZM2/generic-turing-machine already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rustyline v2.1.0
[INFO] [stderr]   Downloaded syn v0.15.16
[INFO] [stderr]   Downloaded rowan v0.1.1
[INFO] [stderr]   Downloaded smol_str v0.1.7
[INFO] [stderr]   Downloaded text_unit v0.1.5
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a6c8c34e97e4caa4123cd54fb740b432badaf13c7017f13852767ecbc479c339
[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" "a6c8c34e97e4caa4123cd54fb740b432badaf13c7017f13852767ecbc479c339", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a6c8c34e97e4caa4123cd54fb740b432badaf13c7017f13852767ecbc479c339", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6c8c34e97e4caa4123cd54fb740b432badaf13c7017f13852767ecbc479c339", kill_on_drop: false }`
[INFO] [stdout] a6c8c34e97e4caa4123cd54fb740b432badaf13c7017f13852767ecbc479c339
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 12748b08ed0cfa1572390d52a7881a8c8b9aa3ebdf9d8e96fee2b0346db8ec67
[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" "12748b08ed0cfa1572390d52a7881a8c8b9aa3ebdf9d8e96fee2b0346db8ec67", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.25
[INFO] [stderr]    Compiling nix v0.11.0
[INFO] [stderr]    Compiling failure_derive v0.1.3
[INFO] [stderr]     Checking rustc-demangle v0.1.9
[INFO] [stderr]     Checking smol_str v0.1.7
[INFO] [stderr]     Checking utf8parse v0.1.1
[INFO] [stderr]     Checking text_unit v0.1.5
[INFO] [stderr]     Checking dirs v1.0.4
[INFO] [stderr]     Checking owning_ref v0.3.3
[INFO] [stderr]     Checking smallvec v0.6.5
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]    Compiling syn v0.15.16
[INFO] [stderr]     Checking parking_lot_core v0.3.1
[INFO] [stderr]     Checking lock_api v0.1.4
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]     Checking rowan v0.1.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]     Checking rustyline v2.1.0
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustyline-2.1.0/src/lib.rs:639:43
[INFO] [stdout]     |
[INFO] [stdout] 639 |             editor.add_history_entry(line.as_ref());
[INFO] [stdout]     |                                      -----^^^^^^--
[INFO] [stdout]     |                                      |    |
[INFO] [stdout]     |                                      |    cannot infer type for type parameter `T` declared on the trait `AsRef`
[INFO] [stdout]     |                                      this method call resolves to `&T`
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `String: AsRef<_>`
[INFO] [stdout] help: use the fully qualified path for the potential candidates
[INFO] [stdout]     |
[INFO] [stdout] 639 |             editor.add_history_entry(<String as AsRef<OsStr>>::as_ref(line));
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 639 |             editor.add_history_entry(<String as AsRef<Path>>::as_ref(line));
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 639 |             editor.add_history_entry(<String as AsRef<[u8]>>::as_ref(line));
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 639 |             editor.add_history_entry(<String as AsRef<str>>::as_ref(line));
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustyline-2.1.0/src/history.rs:150:33
[INFO] [stdout]     |
[INFO] [stdout] 150 |             self.add(try!(line).as_ref()); // TODO truncate to MAX_LINE
[INFO] [stdout]     |                      -----------^^^^^^--
[INFO] [stdout]     |                      |          |
[INFO] [stdout]     |                      |          cannot infer type for type parameter `T` declared on the trait `AsRef`
[INFO] [stdout]     |                      this method call resolves to `&T`
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `String: AsRef<_>`
[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 E0283`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustyline` due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "12748b08ed0cfa1572390d52a7881a8c8b9aa3ebdf9d8e96fee2b0346db8ec67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12748b08ed0cfa1572390d52a7881a8c8b9aa3ebdf9d8e96fee2b0346db8ec67", kill_on_drop: false }`
[INFO] [stdout] 12748b08ed0cfa1572390d52a7881a8c8b9aa3ebdf9d8e96fee2b0346db8ec67
