[INFO] cloning repository https://github.com/rainbowlang/rainbow
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rainbowlang/rainbow" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frainbowlang%2Frainbow", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frainbowlang%2Frainbow'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8b6accd772c561d31c78cad08c3659651bab9b47
[INFO] documenting rainbowlang/rainbow against 1.69.0 for beta-1.70-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frainbowlang%2Frainbow" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rainbowlang/rainbow on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rainbowlang/rainbow
[INFO] finished tweaking git repo https://github.com/rainbowlang/rainbow
[INFO] tweaked toml for git repo https://github.com/rainbowlang/rainbow written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/rainbowlang/rainbow already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded snowflake v1.3.0
[INFO] [stderr]   Downloaded id_tree v1.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2d9b19700b18cbde9443ad4f9012fa3fab1df2d9e3bf98ebc937e1d625d332b3
[INFO] running `Command { std: "docker" "start" "-a" "2d9b19700b18cbde9443ad4f9012fa3fab1df2d9e3bf98ebc937e1d625d332b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2d9b19700b18cbde9443ad4f9012fa3fab1df2d9e3bf98ebc937e1d625d332b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d9b19700b18cbde9443ad4f9012fa3fab1df2d9e3bf98ebc937e1d625d332b3", kill_on_drop: false }`
[INFO] [stdout] 2d9b19700b18cbde9443ad4f9012fa3fab1df2d9e3bf98ebc937e1d625d332b3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTFLAGS=--cap-lints=warn" "-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7c6a78f723c14cb3517871f4753380c4eb15cc2efc0b1eac276dfa7c8ffcb7d5
[INFO] running `Command { std: "docker" "start" "-a" "7c6a78f723c14cb3517871f4753380c4eb15cc2efc0b1eac276dfa7c8ffcb7d5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.24
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling libc v0.2.45
[INFO] [stderr]    Compiling serde v1.0.82
[INFO] [stderr]     Checking snowflake v1.3.0
[INFO] [stderr]    Compiling pest v1.0.6
[INFO] [stderr]     Checking id_tree v1.3.0
[INFO] [stderr]     Checking bitflags v0.4.0
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking encode_unicode v0.1.3
[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stderr]     Checking nix v0.5.1
[INFO] [stderr]    Compiling syn v0.15.23
[INFO] [stderr]    Compiling pest_derive v1.0.8
[INFO] [stderr]     Checking rustyline v1.0.0
[INFO] [stderr]    Compiling serde_derive v1.0.82
[INFO] [stderr]     Checking rainbow_core v0.1.0 (/opt/rustwide/workdir/rainbow_core)
[INFO] [stderr]  Documenting rainbow_core v0.1.0 (/opt/rustwide/workdir/rainbow_core)
[INFO] [stdout] warning: the item `Prim` is imported redundantly
[INFO] [stdout]   --> rainbow_core/src/standalone.rs:20:13
[INFO] [stdout]    |
[INFO] [stdout] 6  | use crate::primitive::Prim;
[INFO] [stdout]    |     ---------------------- the item `Prim` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 20 |         use crate::primitive::Prim;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> rainbow_core/src/function_builder.rs:12:26
[INFO] [stdout]    |
[INFO] [stdout] 12 |     callback: Option<Box<Fn(Apply<V>, &mut Machine<V>) -> Result<V, V::Error>>>,
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 12 |     callback: Option<Box<dyn Fn(Apply<V>, &mut Machine<V>) -> Result<V, V::Error>>>,
[INFO] [stdout]    |                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> rainbow_core/src/namespace.rs:26:37
[INFO] [stdout]    |
[INFO] [stdout] 26 |     callbacks: HashMap<ArenaId, Box<Fn(Apply<V>, &mut Machine<V>) -> Result<V, V::Error>>>,
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 26 |     callbacks: HashMap<ArenaId, Box<dyn Fn(Apply<V>, &mut Machine<V>) -> Result<V, V::Error>>>,
[INFO] [stdout]    |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> rainbow_core/src/function_builder.rs:93:17
[INFO] [stdout]    |
[INFO] [stdout] 93 |             Box<Fn(Apply<V>, &mut Machine<V>) -> Result<V, V::Error>>,
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 93 |             Box<dyn Fn(Apply<V>, &mut Machine<V>) -> Result<V, V::Error>>,
[INFO] [stdout]    |                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> rainbow_core/src/namespace.rs:87:22
[INFO] [stdout]    |
[INFO] [stdout] 87 |     ) -> Option<&Box<Fn(Apply<V>, &mut Machine<V>) -> Result<V, V::Error>>> {
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 87 |     ) -> Option<&Box<dyn Fn(Apply<V>, &mut Machine<V>) -> Result<V, V::Error>>> {
[INFO] [stdout]    |                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> rainbow_core/src/namespace.rs:102:23
[INFO] [stdout]     |
[INFO] [stdout] 102 |         callback: Box<Fn(Apply<V>, &mut Machine<V>) -> Result<V, V::Error>>,
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 102 |         callback: Box<dyn Fn(Apply<V>, &mut Machine<V>) -> Result<V, V::Error>>,
[INFO] [stdout]     |                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: ambiguous associated item
[INFO] [stdout]   --> rainbow_core/src/standalone.rs:93:34
[INFO] [stdout]    |
[INFO] [stdout] 93 |     fn try_list(&self) -> Result<Self::List, String> {
[INFO] [stdout]    |                                  ^^^^^^^^^^ help: use fully-qualified syntax: `<standalone::Value as Value>::List`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #57644 <https://github.com/rust-lang/rust/issues/57644>
[INFO] [stdout] note: `List` could refer to the variant defined here
[INFO] [stdout]   --> rainbow_core/src/standalone.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     List(Vec<Value>),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] note: `List` could also refer to the associated type defined here
[INFO] [stdout]   --> rainbow_core/src/interpreter/value.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     type List: List<Self>;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(ambiguous_associated_items)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: ambiguous associated item
[INFO] [stdout]    --> rainbow_core/src/standalone.rs:100:36
[INFO] [stdout]     |
[INFO] [stdout] 100 |     fn try_record(&self) -> Result<Self::Record, String> {
[INFO] [stdout]     |                                    ^^^^^^^^^^^^ help: use fully-qualified syntax: `<standalone::Value as Value>::Record`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #57644 <https://github.com/rust-lang/rust/issues/57644>
[INFO] [stdout] note: `Record` could refer to the variant defined here
[INFO] [stdout]    --> rainbow_core/src/standalone.rs:14:5
[INFO] [stdout]     |
[INFO] [stdout] 14  |     Record(HashMap<String, Value>),
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] note: `Record` could also refer to the associated type defined here
[INFO] [stdout]    --> rainbow_core/src/interpreter/value.rs:31:5
[INFO] [stdout]     |
[INFO] [stdout] 31  |     type Record: Record<Self>;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `core::str::<impl str>::trim_right_matches`: superseded by `trim_end_matches`
[INFO] [stdout]   --> rainbow_core/src/frontend/implicit_blocks.rs:18:22
[INFO] [stdout]    |
[INFO] [stdout] 18 |                     .trim_right_matches(':');
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] help: replace the use of the deprecated method
[INFO] [stdout]    |
[INFO] [stdout] 18 |                     .trim_end_matches(':');
[INFO] [stdout]    |                      ~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `core::str::<impl str>::trim_right_matches`: superseded by `trim_end_matches`
[INFO] [stdout]    --> rainbow_core/src/typing/constraint_generator.rs:172:22
[INFO] [stdout]     |
[INFO] [stdout] 172 |                     .trim_right_matches(':');
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: replace the use of the deprecated method
[INFO] [stdout]     |
[INFO] [stdout] 172 |                     .trim_end_matches(':');
[INFO] [stdout]     |                      ~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `lex` is never used
[INFO] [stdout]   --> rainbow_core/src/frontend/lexer.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub fn lex<'i>(input: &'i str) -> Lexer<'i> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> rainbow_core/src/frontend/syntax_tree.rs:149:29
[INFO] [stdout]     |
[INFO] [stdout] 149 |                 _ => panic!(format!("grammar rule `bool` rule matched {:?}", pair)),
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 149 -                 _ => panic!(format!("grammar rule `bool` rule matched {:?}", pair)),
[INFO] [stdout] 149 +                 _ => panic!("grammar rule `bool` rule matched {:?}", pair),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]  Documenting rainbow_repl v0.1.0 (/opt/rustwide/workdir/rainbow_repl)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.06s
[INFO] running `Command { std: "docker" "inspect" "7c6a78f723c14cb3517871f4753380c4eb15cc2efc0b1eac276dfa7c8ffcb7d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c6a78f723c14cb3517871f4753380c4eb15cc2efc0b1eac276dfa7c8ffcb7d5", kill_on_drop: false }`
[INFO] [stdout] 7c6a78f723c14cb3517871f4753380c4eb15cc2efc0b1eac276dfa7c8ffcb7d5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=1" "-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "rustdoc" "--lib" "-Zrustdoc-map" "-Z" "unstable-options" "--config" "build.rustdocflags=[\"-Z\", \"unstable-options\", \"--document-private-items\"]" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3be57acf0ed64d28851dc091ccc426e14875af3bf3cdf7fe06aaaf72205e839a
[INFO] running `Command { std: "docker" "start" "-a" "3be57acf0ed64d28851dc091ccc426e14875af3bf3cdf7fe06aaaf72205e839a", kill_on_drop: false }`
[INFO] [stderr] error: manifest path `/opt/rustwide/workdir/Cargo.toml` is a virtual manifest, but this command requires running against an actual package in this workspace
[INFO] running `Command { std: "docker" "inspect" "3be57acf0ed64d28851dc091ccc426e14875af3bf3cdf7fe06aaaf72205e839a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3be57acf0ed64d28851dc091ccc426e14875af3bf3cdf7fe06aaaf72205e839a", kill_on_drop: false }`
[INFO] [stdout] 3be57acf0ed64d28851dc091ccc426e14875af3bf3cdf7fe06aaaf72205e839a
