[INFO] fetching crate witx-overview-docgen 0.1.2...
[INFO] checking witx-overview-docgen-0.1.2 against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] extracting crate witx-overview-docgen 0.1.2 into /workspace/builds/worker-86/source
[INFO] validating manifest of crates.io crate witx-overview-docgen 0.1.2 on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate witx-overview-docgen 0.1.2
[INFO] finished tweaking crates.io crate witx-overview-docgen 0.1.2
[INFO] tweaked toml for crates.io crate witx-overview-docgen 0.1.2 written to /workspace/builds/worker-86/source/Cargo.toml
[INFO] crate crates.io crate witx-overview-docgen 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/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" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 065743aac7daa5c205aa42fded0a0167808a9d530de9064d07202edb39c1599f
[INFO] running `Command { std: "docker" "start" "-a" "065743aac7daa5c205aa42fded0a0167808a9d530de9064d07202edb39c1599f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "065743aac7daa5c205aa42fded0a0167808a9d530de9064d07202edb39c1599f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "065743aac7daa5c205aa42fded0a0167808a9d530de9064d07202edb39c1599f", kill_on_drop: false }`
[INFO] [stdout] 065743aac7daa5c205aa42fded0a0167808a9d530de9064d07202edb39c1599f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/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=forbid" "-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" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 74548b4f4911b40d96de40c91d79869b39f91e72dce32cd151d57523cffd47fd
[INFO] running `Command { std: "docker" "start" "-a" "74548b4f4911b40d96de40c91d79869b39f91e72dce32cd151d57523cffd47fd", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.44
[INFO] [stderr]    Compiling anyhow v1.0.33
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking leb128 v0.2.4
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking wast v22.0.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking term_size v0.3.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.21
[INFO] [stderr]     Checking thiserror v1.0.21
[INFO] [stderr]     Checking witx v0.8.7
[INFO] [stderr]     Checking witx-overview-docgen v0.1.2 (/tmp/fixit)
[INFO] [stderr]    Migrating src/main.rs from 2018 edition to 2021
[INFO] [stderr] warning: failed to automatically apply fixes suggested by rustc to crate `witx_overview_docgen`
[INFO] [stderr] 
[INFO] [stderr] after fixes were automatically applied the compiler reported errors within these files:
[INFO] [stderr] 
[INFO] [stderr]   * src/generator.rs
[INFO] [stderr] 
[INFO] [stderr] This likely indicates a bug in either rustc or cargo itself,
[INFO] [stderr] and we would appreciate a bug report! You're likely to see 
[INFO] [stderr] a number of compiler warnings after this message which cargo
[INFO] [stderr] attempted to fix but failed. If you could open an issue at
[INFO] [stderr] https://github.com/rust-lang/rust/issues
[INFO] [stderr] quoting the full output of this command we'd be very appreciative!
[INFO] [stderr] Note that you may be able to make some more progress in the near-term
[INFO] [stderr] fixing code with the `--broken-code` flag
[INFO] [stderr] 
[INFO] [stderr] The following errors were reported:
[INFO] [stderr] error[E0425]: cannot find value `docs` in this scope
[INFO] [stderr]    --> src/generator.rs:293:12
[INFO] [stderr]     |
[INFO] [stderr] 293 |         if docs.is_empty() {
[INFO] [stderr]     |            ^^^^ help: a local variable with a similar name exists: `_docs`
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `w` in this scope
[INFO] [stderr]    --> src/generator.rs:296:9
[INFO] [stderr]     |
[INFO] [stderr] 296 |         w.write_line("/**")?;
[INFO] [stderr]     |         ^ a field by this name exists in `Self`
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `docs` in this scope
[INFO] [stderr]    --> src/generator.rs:297:26
[INFO] [stderr]     |
[INFO] [stderr] 297 |         for docs_line in docs.lines() {
[INFO] [stderr]     |                          ^^^^ help: a local variable with a similar name exists: `_docs`
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `w` in this scope
[INFO] [stderr]    --> src/generator.rs:298:13
[INFO] [stderr]     |
[INFO] [stderr] 298 |             w.write_line(format!(" * {}", docs_line))?;
[INFO] [stderr]     |             ^ a field by this name exists in `Self`
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `w` in this scope
[INFO] [stderr]    --> src/generator.rs:300:9
[INFO] [stderr]     |
[INFO] [stderr] 300 |         w.write_line(" */")?;
[INFO] [stderr]     |         ^ a field by this name exists in `Self`
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]    --> src/generator.rs:293:9
[INFO] [stderr]     |
[INFO] [stderr] 292 |           return Ok(());
[INFO] [stderr]     |           ------------- any code following this expression is unreachable
[INFO] [stderr] 293 | /         if docs.is_empty() {
[INFO] [stderr] 294 | |             return Ok(());
[INFO] [stderr] 295 | |         }
[INFO] [stderr]     | |_________^ unreachable statement
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 5 previous errors; 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0425`.
[INFO] [stderr] Original diagnostics will follow.
[INFO] [stderr] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/generator.rs:293:9
[INFO] [stdout]     |
[INFO] [stdout] 292 |           return Ok(());
[INFO] [stdout]     |           ------------- any code following this expression is unreachable
[INFO] [stdout] 293 | /         if docs.is_empty() {
[INFO] [stdout] 294 | |             return Ok(());
[INFO] [stdout] 295 | |         }
[INFO] [stdout]     | |_________^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/generator.rs:293:9
[INFO] [stdout]     |
[INFO] [stdout] 292 |           return Ok(());
[INFO] [stdout]     |           ------------- any code following this expression is unreachable
[INFO] [stdout] 293 | /         if docs.is_empty() {
[INFO] [stdout] 294 | |             return Ok(());
[INFO] [stdout] 295 | |         }
[INFO] [stdout]     | |_________^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `as_type`
[INFO] [stdout]    --> src/generator.rs:103:9
[INFO] [stdout]     |
[INFO] [stdout] 103 |         as_type: &ASType,
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_as_type`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `module_name`
[INFO] [stdout]    --> src/generator.rs:241:13
[INFO] [stdout]     |
[INFO] [stdout] 241 |         let module_name = match self.module_name.as_ref() {
[INFO] [stdout]     |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_module_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `w`
[INFO] [stdout]    --> src/generator.rs:291:29
[INFO] [stdout]     |
[INFO] [stdout] 291 |     fn write_docs<T: Write>(w: &mut PrettyWriter<T>, docs: &str) -> Result<(), Error> {
[INFO] [stdout]     |                             ^ help: if this is intentional, prefix it with an underscore: `_w`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `docs`
[INFO] [stdout]    --> src/generator.rs:291:54
[INFO] [stdout]     |
[INFO] [stdout] 291 |     fn write_docs<T: Write>(w: &mut PrettyWriter<T>, docs: &str) -> Result<(), Error> {
[INFO] [stdout]     |                                                      ^^^^ help: if this is intentional, prefix it with an underscore: `_docs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `as_type`
[INFO] [stdout]    --> src/generator.rs:103:9
[INFO] [stdout]     |
[INFO] [stdout] 103 |         as_type: &ASType,
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_as_type`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `module_name`
[INFO] [stdout]    --> src/generator.rs:241:13
[INFO] [stdout]     |
[INFO] [stdout] 241 |         let module_name = match self.module_name.as_ref() {
[INFO] [stdout]     |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_module_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `w`
[INFO] [stdout]    --> src/generator.rs:291:29
[INFO] [stdout]     |
[INFO] [stdout] 291 |     fn write_docs<T: Write>(w: &mut PrettyWriter<T>, docs: &str) -> Result<(), Error> {
[INFO] [stdout]     |                             ^ help: if this is intentional, prefix it with an underscore: `_w`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `docs`
[INFO] [stdout]    --> src/generator.rs:291:54
[INFO] [stdout]     |
[INFO] [stdout] 291 |     fn write_docs<T: Write>(w: &mut PrettyWriter<T>, docs: &str) -> Result<(), Error> {
[INFO] [stdout]     |                                                      ^^^^ help: if this is intentional, prefix it with an underscore: `_docs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_nullable`
[INFO] [stdout]   --> src/astype.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn is_nullable(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `continuation_bytes`
[INFO] [stdout]   --> src/pretty_writer.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     continuation_bytes: &'static str,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `continuation`
[INFO] [stdout]    --> src/pretty_writer.rs:106:12
[INFO] [stdout]     |
[INFO] [stdout] 106 |     pub fn continuation(&mut self) -> Result<&mut Self, Error> {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_nullable`
[INFO] [stdout]   --> src/astype.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn is_nullable(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `continuation_bytes`
[INFO] [stdout]   --> src/pretty_writer.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     continuation_bytes: &'static str,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `continuation`
[INFO] [stdout]    --> src/pretty_writer.rs:106:12
[INFO] [stdout]     |
[INFO] [stdout] 106 |     pub fn continuation(&mut self) -> Result<&mut Self, Error> {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.12s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]     Checking witx-overview-docgen v0.1.2 (/tmp/fixit)
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/generator.rs:293:9
[INFO] [stdout]     |
[INFO] [stdout] 292 |           return Ok(());
[INFO] [stdout]     |           ------------- any code following this expression is unreachable
[INFO] [stdout] 293 | /         if docs.is_empty() {
[INFO] [stdout] 294 | |             return Ok(());
[INFO] [stdout] 295 | |         }
[INFO] [stdout]     | |_________^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/generator.rs:293:9
[INFO] [stdout]     |
[INFO] [stdout] 292 |           return Ok(());
[INFO] [stdout]     |           ------------- any code following this expression is unreachable
[INFO] [stdout] 293 | /         if docs.is_empty() {
[INFO] [stdout] 294 | |             return Ok(());
[INFO] [stdout] 295 | |         }
[INFO] [stdout]     | |_________^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `as_type`
[INFO] [stdout]    --> src/generator.rs:103:9
[INFO] [stdout]     |
[INFO] [stdout] 103 |         as_type: &ASType,
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_as_type`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `module_name`
[INFO] [stdout]    --> src/generator.rs:241:13
[INFO] [stdout]     |
[INFO] [stdout] 241 |         let module_name = match self.module_name.as_ref() {
[INFO] [stdout]     |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_module_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `w`
[INFO] [stdout]    --> src/generator.rs:291:29
[INFO] [stdout]     |
[INFO] [stdout] 291 |     fn write_docs<T: Write>(w: &mut PrettyWriter<T>, docs: &str) -> Result<(), Error> {
[INFO] [stdout]     |                             ^ help: if this is intentional, prefix it with an underscore: `_w`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `docs`
[INFO] [stdout]    --> src/generator.rs:291:54
[INFO] [stdout]     |
[INFO] [stdout] 291 |     fn write_docs<T: Write>(w: &mut PrettyWriter<T>, docs: &str) -> Result<(), Error> {
[INFO] [stdout]     |                                                      ^^^^ help: if this is intentional, prefix it with an underscore: `_docs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `as_type`
[INFO] [stdout]    --> src/generator.rs:103:9
[INFO] [stdout]     |
[INFO] [stdout] 103 |         as_type: &ASType,
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_as_type`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `module_name`
[INFO] [stdout]    --> src/generator.rs:241:13
[INFO] [stdout]     |
[INFO] [stdout] 241 |         let module_name = match self.module_name.as_ref() {
[INFO] [stdout]     |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_module_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `w`
[INFO] [stdout]    --> src/generator.rs:291:29
[INFO] [stdout]     |
[INFO] [stdout] 291 |     fn write_docs<T: Write>(w: &mut PrettyWriter<T>, docs: &str) -> Result<(), Error> {
[INFO] [stdout]     |                             ^ help: if this is intentional, prefix it with an underscore: `_w`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `docs`
[INFO] [stdout]    --> src/generator.rs:291:54
[INFO] [stdout]     |
[INFO] [stdout] 291 |     fn write_docs<T: Write>(w: &mut PrettyWriter<T>, docs: &str) -> Result<(), Error> {
[INFO] [stdout]     |                                                      ^^^^ help: if this is intentional, prefix it with an underscore: `_docs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_nullable`
[INFO] [stdout]   --> src/astype.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn is_nullable(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `continuation_bytes`
[INFO] [stdout]   --> src/pretty_writer.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     continuation_bytes: &'static str,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `continuation`
[INFO] [stdout]    --> src/pretty_writer.rs:106:12
[INFO] [stdout]     |
[INFO] [stdout] 106 |     pub fn continuation(&mut self) -> Result<&mut Self, Error> {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_nullable`
[INFO] [stdout]   --> src/astype.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn is_nullable(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `continuation_bytes`
[INFO] [stdout]   --> src/pretty_writer.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     continuation_bytes: &'static str,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `continuation`
[INFO] [stdout]    --> src/pretty_writer.rs:106:12
[INFO] [stdout]     |
[INFO] [stdout] 106 |     pub fn continuation(&mut self) -> Result<&mut Self, Error> {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "74548b4f4911b40d96de40c91d79869b39f91e72dce32cd151d57523cffd47fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74548b4f4911b40d96de40c91d79869b39f91e72dce32cd151d57523cffd47fd", kill_on_drop: false }`
[INFO] [stdout] 74548b4f4911b40d96de40c91d79869b39f91e72dce32cd151d57523cffd47fd